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PMID |
Sentence |
1 |
8747854
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Molecular studies focused on the short arm of chromosome 6, including the HLA DR2 locus associated with narcolepsy and the (CAG)n repeat at the spinocerebellar ataxia type 1 (SCA1) locus.
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2 |
8747854
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Linkage was excluded to HLA DR2, and a normal sized SCA1 repeat was observed.
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3 |
8747854
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Molecular studies focused on the short arm of chromosome 6, including the HLA DR2 locus associated with narcolepsy and the (CAG)n repeat at the spinocerebellar ataxia type 1 (SCA1) locus.
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4 |
8747854
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Linkage was excluded to HLA DR2, and a normal sized SCA1 repeat was observed.
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5 |
9159148
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Western blot analyses using antibodies directed against specific apoptotic proteases (interleukin 1beta converting enzyme, Nedd-2, and Apopain/CPP 32) confirmed these findings.
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6 |
9748221
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Here, we show that the PPARalpha and PPARgamma forms are expressed in differentiated human monocyte-derived macrophages, which participate in inflammation control and atherosclerotic plaque formation.
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7 |
9748221
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Whereas PPARalpha is already present in undifferentiated monocytes, PPARgamma expression is induced upon differentiation into macrophages.
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8 |
9748221
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Immunocytochemistry analysis demonstrates that PPARalpha resides constitutively in the cytoplasm, whereas PPARgamma is predominantly nuclear localized.
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9 |
9748221
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Transient transfection experiments indicate that PPARalpha and PPARgamma are transcriptionally active after ligand stimulation.
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10 |
9748221
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Ligand activation of PPARgamma, but not of PPARalpha, results in apoptosis induction of unactivated differentiated macrophages as measured by the TUNEL assay and the appearance of the active proteolytic subunits of the cell death protease caspase-3.
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11 |
9748221
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However, both PPARalpha and PPARgamma ligands induce apoptosis of macrophages activated with tumor necrosis factor alpha/interferon gamma.
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12 |
9748221
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Finally, PPARgamma inhibits the transcriptional activity of the NFkappaB p65/RelA subunit, suggesting that PPAR activators induce macrophage apoptosis by negatively interfering with the anti-apoptotic NFkappaB signaling pathway.
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13 |
10078546
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Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
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14 |
10078546
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The cross-linking of Fas by anti-Fas resulted in the elevation of caspase-3-like, but not caspase-1-like, protease activity 2-12 h after the addition of the anti-Fas.
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15 |
10078546
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A caspase-3 inhibitor, Z-Asp-Glu-Val-Asp-fluoromethyl ketone, attenuated the Fas-mediated beta-cell apoptosis, while a caspase-1 inhibitor, acetyl-Tyr-Val-Ala-Asp-chloromethylketone, failed to suppress the apoptosis.
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16 |
10078546
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Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
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17 |
10078546
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Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
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18 |
10078546
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The cross-linking of Fas by anti-Fas resulted in the elevation of caspase-3-like, but not caspase-1-like, protease activity 2-12 h after the addition of the anti-Fas.
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19 |
10078546
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A caspase-3 inhibitor, Z-Asp-Glu-Val-Asp-fluoromethyl ketone, attenuated the Fas-mediated beta-cell apoptosis, while a caspase-1 inhibitor, acetyl-Tyr-Val-Ala-Asp-chloromethylketone, failed to suppress the apoptosis.
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20 |
10078546
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Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
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21 |
10078546
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Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
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22 |
10078546
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The cross-linking of Fas by anti-Fas resulted in the elevation of caspase-3-like, but not caspase-1-like, protease activity 2-12 h after the addition of the anti-Fas.
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23 |
10078546
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A caspase-3 inhibitor, Z-Asp-Glu-Val-Asp-fluoromethyl ketone, attenuated the Fas-mediated beta-cell apoptosis, while a caspase-1 inhibitor, acetyl-Tyr-Val-Ala-Asp-chloromethylketone, failed to suppress the apoptosis.
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24 |
10078546
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Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
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25 |
10078546
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Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
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26 |
10078546
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The cross-linking of Fas by anti-Fas resulted in the elevation of caspase-3-like, but not caspase-1-like, protease activity 2-12 h after the addition of the anti-Fas.
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27 |
10078546
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A caspase-3 inhibitor, Z-Asp-Glu-Val-Asp-fluoromethyl ketone, attenuated the Fas-mediated beta-cell apoptosis, while a caspase-1 inhibitor, acetyl-Tyr-Val-Ala-Asp-chloromethylketone, failed to suppress the apoptosis.
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28 |
10078546
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Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
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29 |
10099840
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Total mRNA of the purified pericytes was isolated for quantitative reverse transcriptase (RT)-PCR assay. mRNA levels of a death protease (CPP32), the major enzyme that initiates the proteolytic cascade leading to cell death, were determined in association with the expression of antioxidative enzymes including glutathione peroxidase (GSH-Px), glutathione reductase, CuZn superoxide dismutase (SOD), MnSOD and catalase genes in pericytes.
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30 |
10099840
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In diabetic pericytes, up-regulation of glutathione peroxidase (GSH-Px) (8.2 +/- 0.9 fold increase, p < 0.01, n = 9) and down-regulation of glutathione reductase (Gr) (4.1 +/- 0.4 fold decrease, p < 0.05, n = 9) and CuZnSOD (2.1 +/- 0.7 fold decrease, p < 0.05, n = 9) were observed. mRNA levels of MnSOD and catalase of diabetic pericytes did not differ significantly from those of non-diabetic pericytes.
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31 |
10099840
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Overexpression of a member of interleukin-1 beta-converting enzyme (ICE) family, CPP32, indicated that the pericytes from diabetic retinas are in a "pre-PCD" state.
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32 |
10099840
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Total mRNA of the purified pericytes was isolated for quantitative reverse transcriptase (RT)-PCR assay. mRNA levels of a death protease (CPP32), the major enzyme that initiates the proteolytic cascade leading to cell death, were determined in association with the expression of antioxidative enzymes including glutathione peroxidase (GSH-Px), glutathione reductase, CuZn superoxide dismutase (SOD), MnSOD and catalase genes in pericytes.
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33 |
10099840
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In diabetic pericytes, up-regulation of glutathione peroxidase (GSH-Px) (8.2 +/- 0.9 fold increase, p < 0.01, n = 9) and down-regulation of glutathione reductase (Gr) (4.1 +/- 0.4 fold decrease, p < 0.05, n = 9) and CuZnSOD (2.1 +/- 0.7 fold decrease, p < 0.05, n = 9) were observed. mRNA levels of MnSOD and catalase of diabetic pericytes did not differ significantly from those of non-diabetic pericytes.
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34 |
10099840
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Overexpression of a member of interleukin-1 beta-converting enzyme (ICE) family, CPP32, indicated that the pericytes from diabetic retinas are in a "pre-PCD" state.
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35 |
10811232
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Like pancreatic beta cells, betaTC-3 cells do not constitutively express Fas, but Fas expression can be induced with IL-1 and IFN-gamma.
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36 |
10811232
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After IL-1/IFN-gamma treatment, betaTC-3 cells transfected with the anti-Fas ribozyme expressed 80% less Fas compared with mock-transfected cells.
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37 |
10811232
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Inhibition of de novo Fas expression in betaTC-3 cells expressing the anti-Fas ribozyme correlated with resistance to Fas-mediated apoptosis as determined by the number of cells exhibiting caspase 3 proteolytic activity.
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38 |
10830283
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Cytokines induce both necrosis and apoptosis via a common Bcl-2-inhibitable pathway in rat insulin-producing cells.
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39 |
10830283
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A combination of interleukin-1beta, interferon-gamma, and tumor necrosis factor-alpha increased both necrosis (17% of cells) and apoptosis (5% of cells) in isolated whole rat islets, as determined by vital staining and fluorescence microscopy.
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40 |
10830283
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Hyperexpression of Bcl-2, achieved by stable transfection using a multicopy viral vector containing a bcl-2 complementary DNA in rat insulin-producing RINm5F cells, counteracted both apoptosis and necrosis.
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41 |
10830283
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Cytokine-induced cleavage of the caspase-3 substrate poly(ADP-ribose) polymerase (which, in other cell types, may occur downstream or independently of a Bcl-2-preventable mitochondrial permeability transition) was observed in control- but neither in bcl-2-transfected cells nor in the presence of the iNOS inhibitor N(G)-methyl-L-arginine.
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42 |
10830283
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Tumor necrosis factor-alpha alone did not clearly induce cell death or poly(ADP-ribose) polymerase-cleavage.
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43 |
10830283
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These findings suggest that cytokines induce both necrosis and apoptosis in insulin-producing cells via a common Bcl-2-preventable nitric oxide-dependent pathway, which may involve mitochondrial permeability transition.
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44 |
10840014
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High glucose-induced apoptosis in human endothelial cells is mediated by sequential activations of c-Jun NH(2)-terminal kinase and caspase-3.
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45 |
10940305
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The glucagon-like peptide-2 receptor mediates direct inhibition of cellular apoptosis via a cAMP-dependent protein kinase-independent pathway.
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46 |
10940305
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Because GLP-2 decreases mortality and reduces intestinal apoptosis in rodents after experimental injury, we examined whether GLP-2R signaling directly modifies the cellular response to external injury.
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47 |
10940305
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We show here that activation of GLP-2R signaling inhibits cycloheximide-induced apoptosis in baby hamster kidney fibroblasts expressing a transfected GLP-2 receptor.
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48 |
10940305
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GLP-2 reduced DNA fragmentation and improved cell survival, in association with reduced activation of caspase-3 and decreased poly(ADP-ribose) polymerase cleavage and reduced caspase-8 and caspase-9-like activities.
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49 |
10940305
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Both GLP-2 and forskolin reduced mitochondrial cytochrome c release and decreased the cycloheximide-induced cleavage of caspase-3 in the presence or absence of the PKA inhibitor H-89.
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50 |
10940305
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These findings provide evidence that signaling through G protein-coupled receptors of the glucagon superfamily is directly linked to regulation of apoptosis and suggest the existence of a cAMP-dependent protein kinase-, phosphatidylinositol 3-kinase-, and mitogen-activated protein kinase-independent pathway coupling GLP-2R signaling to caspase inhibition and cell survival.
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51 |
10940305
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The glucagon-like peptide-2 receptor mediates direct inhibition of cellular apoptosis via a cAMP-dependent protein kinase-independent pathway.
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52 |
10940305
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Because GLP-2 decreases mortality and reduces intestinal apoptosis in rodents after experimental injury, we examined whether GLP-2R signaling directly modifies the cellular response to external injury.
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53 |
10940305
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We show here that activation of GLP-2R signaling inhibits cycloheximide-induced apoptosis in baby hamster kidney fibroblasts expressing a transfected GLP-2 receptor.
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54 |
10940305
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GLP-2 reduced DNA fragmentation and improved cell survival, in association with reduced activation of caspase-3 and decreased poly(ADP-ribose) polymerase cleavage and reduced caspase-8 and caspase-9-like activities.
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55 |
10940305
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Both GLP-2 and forskolin reduced mitochondrial cytochrome c release and decreased the cycloheximide-induced cleavage of caspase-3 in the presence or absence of the PKA inhibitor H-89.
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56 |
10940305
|
These findings provide evidence that signaling through G protein-coupled receptors of the glucagon superfamily is directly linked to regulation of apoptosis and suggest the existence of a cAMP-dependent protein kinase-, phosphatidylinositol 3-kinase-, and mitogen-activated protein kinase-independent pathway coupling GLP-2R signaling to caspase inhibition and cell survival.
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57 |
11007772
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Expression of constitutively active phosphatidylinositol 3-kinase inhibits activation of caspase 3 and apoptosis of cardiac muscle cells.
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58 |
11007772
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Recent studies showed that insulin-like growth factor I (IGF-I) inhibits apoptosis of cardiac muscle cells and improves myocardial function in experimental heart failure.
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59 |
11007772
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This study was carried out to elucidate the role of phosphatidylinositol 3-kinase (PI 3-kinase) in the anti-apoptotic actions of IGF-I in cardiomyocytes and to explore whether expression of constitutively active PI 3-kinase can inhibit apoptosis in cardiomyocytes.
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60 |
11007772
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Transduction of cardiomyocytes with constitutively active PI 3-kinase specifically lead to serine phosphorylation of Akt, whereas phosphorylation of IGF-I receptor, IRS1/2 and p44/42 mitogen-activated protein kinase were not increased.
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61 |
11007772
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These findings indicate the existence of an IGF-I receptor-PI 3-kinase-caspase 3 pathway in cardiomyocytes that plays an important role in the anti-apoptotic actions of IGF-I in heart.
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62 |
11007772
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Expression of constitutively active phosphatidylinositol 3-kinase inhibits activation of caspase 3 and apoptosis of cardiac muscle cells.
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63 |
11007772
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Recent studies showed that insulin-like growth factor I (IGF-I) inhibits apoptosis of cardiac muscle cells and improves myocardial function in experimental heart failure.
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64 |
11007772
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This study was carried out to elucidate the role of phosphatidylinositol 3-kinase (PI 3-kinase) in the anti-apoptotic actions of IGF-I in cardiomyocytes and to explore whether expression of constitutively active PI 3-kinase can inhibit apoptosis in cardiomyocytes.
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65 |
11007772
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Transduction of cardiomyocytes with constitutively active PI 3-kinase specifically lead to serine phosphorylation of Akt, whereas phosphorylation of IGF-I receptor, IRS1/2 and p44/42 mitogen-activated protein kinase were not increased.
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66 |
11007772
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These findings indicate the existence of an IGF-I receptor-PI 3-kinase-caspase 3 pathway in cardiomyocytes that plays an important role in the anti-apoptotic actions of IGF-I in heart.
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67 |
11027130
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Cell treatment with manumycin blocked insulin's ability to suppress pro-apoptotic caspase-3 activity which led to time-dependent proteolytic cleavage of two nuclear target proteins.
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68 |
11027130
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The Raf-1/MEK/ERK cascade and the serine/threonine protein kinase Akt are two survival pathways that may be activated in response to insulin.
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69 |
11027130
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We tested the hypothesis that inhibition of farnesylated Ras was causally related to manumycin-induced apoptosis and showed that the response to manumycin was found to be independent of K-Ras function because membrane association and activation of endogenous K-Ras proteins in terms of GTP loading and ERK activation were unabated following treatment with manumycin.
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70 |
11027130
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Moreover, blocking p21Ras/Raf-1/MEK/ERK cascade by the expression of a transdominant inhibitory mSOS1 mutant in CHO-IR cells kept cells sensitive to the antiapoptotic action of insulin.
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71 |
11027130
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Insulin-dependent activation of Akt was blocked by 4 h treatment with manumycin (P < 0.01), a kinetic too rapid to be explained by Ras inhibition.
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72 |
11027130
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This study suggests that the depletion of short-lived farnesylated proteins by manumycin suppresses the antiapoptotic action of insulin at least in part by disrupting Akt activation but not that of the K-Ras/Raf-1/ERK-dependent cascade.
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73 |
11159358
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Identification of caspase-3 and caspase-activated deoxyribonuclease in rat blastocysts and their implication in the induction of chromatin degradation (but not nuclear fragmentation) by high glucose.
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74 |
11159358
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In the present study, we show that two intracellular effectors of apoptosis, caspase-3 and caspase-activated deoxyribonuclease (CAD), are involved in the embryotoxicity of high glucose.
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75 |
11159358
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Rat blastocysts were incubated for 24 h in either 6 mM or 28 mM glucose in the presence or absence of specific inhibitors (DEVD-CHO [10 microM] against caspase-3 and aurin [1 microM] against CAD).
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76 |
11159358
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Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
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77 |
11159358
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Identification of caspase-3 and caspase-activated deoxyribonuclease in rat blastocysts and their implication in the induction of chromatin degradation (but not nuclear fragmentation) by high glucose.
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78 |
11159358
|
In the present study, we show that two intracellular effectors of apoptosis, caspase-3 and caspase-activated deoxyribonuclease (CAD), are involved in the embryotoxicity of high glucose.
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79 |
11159358
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Rat blastocysts were incubated for 24 h in either 6 mM or 28 mM glucose in the presence or absence of specific inhibitors (DEVD-CHO [10 microM] against caspase-3 and aurin [1 microM] against CAD).
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80 |
11159358
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Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
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81 |
11159358
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Identification of caspase-3 and caspase-activated deoxyribonuclease in rat blastocysts and their implication in the induction of chromatin degradation (but not nuclear fragmentation) by high glucose.
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82 |
11159358
|
In the present study, we show that two intracellular effectors of apoptosis, caspase-3 and caspase-activated deoxyribonuclease (CAD), are involved in the embryotoxicity of high glucose.
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83 |
11159358
|
Rat blastocysts were incubated for 24 h in either 6 mM or 28 mM glucose in the presence or absence of specific inhibitors (DEVD-CHO [10 microM] against caspase-3 and aurin [1 microM] against CAD).
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84 |
11159358
|
Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
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85 |
11159358
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Identification of caspase-3 and caspase-activated deoxyribonuclease in rat blastocysts and their implication in the induction of chromatin degradation (but not nuclear fragmentation) by high glucose.
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86 |
11159358
|
In the present study, we show that two intracellular effectors of apoptosis, caspase-3 and caspase-activated deoxyribonuclease (CAD), are involved in the embryotoxicity of high glucose.
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87 |
11159358
|
Rat blastocysts were incubated for 24 h in either 6 mM or 28 mM glucose in the presence or absence of specific inhibitors (DEVD-CHO [10 microM] against caspase-3 and aurin [1 microM] against CAD).
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88 |
11159358
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Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
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89 |
11230775
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Ornithine decarboxylase (ODC) activity, ratio of fragmented DNA to total DNA, electrophoresis of fragmented DNA, and Western blot analysis of caspase-3 were examined.
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90 |
11375350
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Phosphorylation of p38 mitogen-activated protein kinase downstream of bax-caspase-3 pathway leads to cell death induced by high D-glucose in human endothelial cells.
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91 |
11375350
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On the other hand, p38 mitogen-activated protein kinase (MAPK) was markedly phosphorylated and showed sustained phosphorylation after stimulation.
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92 |
11375350
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A specific inhibitor of p38 MAPK, SB 203580, and the overexpression of kinase-inactive p38 MAPK significantly attenuated cell death induced by high D-glucose in human aortic endothelial cells, whereas at 6 h after high D-glucose treatment, SB 203580 and overexpression of kinase-inactive p38 MAPK did not attenuate caspase-3 activation induced by high D-glucose.
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93 |
11375350
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Importantly, caspase inhibitors significantly attenuated the sustained phosphorylation of p38 MAPK induced by high D-glucose.
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94 |
11375350
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Thus, we finally focused the MAPK kinase (MEK) kinase 1 (MEKK1) to further examine the cross-talk between p38 MAPK and the bax-caspase proteases pathway.
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95 |
11375350
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Importantly, kinase-inactive MEKK1 also blocked the phosphorylation of p38 MAPK induced by high D-glucose.
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96 |
11375350
|
Here, we demonstrated that high D-glucose induced apoptosis in human endothelial cells through activation of the bax-caspase proteases pathway and through phosphorylation of p38 MAPK mediated by MEKK1.
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97 |
11375350
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Phosphorylation of p38 MAPK downstream of the bax-caspase pathway may play a pivotal role in endothelial apoptosis mediated by high D-glucose.
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98 |
11375350
|
Phosphorylation of p38 mitogen-activated protein kinase downstream of bax-caspase-3 pathway leads to cell death induced by high D-glucose in human endothelial cells.
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99 |
11375350
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On the other hand, p38 mitogen-activated protein kinase (MAPK) was markedly phosphorylated and showed sustained phosphorylation after stimulation.
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100 |
11375350
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A specific inhibitor of p38 MAPK, SB 203580, and the overexpression of kinase-inactive p38 MAPK significantly attenuated cell death induced by high D-glucose in human aortic endothelial cells, whereas at 6 h after high D-glucose treatment, SB 203580 and overexpression of kinase-inactive p38 MAPK did not attenuate caspase-3 activation induced by high D-glucose.
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101 |
11375350
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Importantly, caspase inhibitors significantly attenuated the sustained phosphorylation of p38 MAPK induced by high D-glucose.
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102 |
11375350
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Thus, we finally focused the MAPK kinase (MEK) kinase 1 (MEKK1) to further examine the cross-talk between p38 MAPK and the bax-caspase proteases pathway.
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103 |
11375350
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Importantly, kinase-inactive MEKK1 also blocked the phosphorylation of p38 MAPK induced by high D-glucose.
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104 |
11375350
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Here, we demonstrated that high D-glucose induced apoptosis in human endothelial cells through activation of the bax-caspase proteases pathway and through phosphorylation of p38 MAPK mediated by MEKK1.
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105 |
11375350
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Phosphorylation of p38 MAPK downstream of the bax-caspase pathway may play a pivotal role in endothelial apoptosis mediated by high D-glucose.
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106 |
11563854
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Stimulation of HAECs with gly-ox-HDL elicited a marked increase in caspase 3 activity and the expressions of active caspase 3 and caspase 9, whereas concomitant treatment with a caspase 3 inhibitor significantly blocked gly-ox-HDL-induced apoptosis of HAECs.
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107 |
11563854
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The increased expressions of Bax and Bad were detected in HAECs incubated for 24 h with gly-ox-HDL, but gly-ox-HDL failed to interfere with the expression of Bcl-2 and Bcl-x.
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108 |
11756336
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In addition, the phosphorylation of Akt in the presence of 150 microU/ml insulin was impaired.
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109 |
11756336
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Likewise, expression of a constitutively active AMPK in HUVEC prevented the increase in caspase-3 activity.
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110 |
11756336
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The results indicate that alterations in fatty-acid metabolism, impaired Akt activation by insulin, and increased caspase-3 activity precede visible evidence of apoptosis in HUVEC incubated in a hyperglycemic medium.
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111 |
11756336
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In addition, the phosphorylation of Akt in the presence of 150 microU/ml insulin was impaired.
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112 |
11756336
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Likewise, expression of a constitutively active AMPK in HUVEC prevented the increase in caspase-3 activity.
|
113 |
11756336
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The results indicate that alterations in fatty-acid metabolism, impaired Akt activation by insulin, and increased caspase-3 activity precede visible evidence of apoptosis in HUVEC incubated in a hyperglycemic medium.
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114 |
11770125
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We studied the effect of application of two antioxidants--coenzyme Q10 (CoQ10, 10 mg/kg b.w., i.p. for seven days) and lipoic acid (LA, 100 mg/kg b.w., i.p. for seven days) on neurones and on the apoptosis-related enzyme--caspase-3 activity in the hippocampus and dentate gyrus.
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115 |
11770125
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Ischaemia and diabetes lead to a decrease of nuclear and perikaryon diameters as well as neuronal density in the CA1, CA2, CA3 and dentate gyrus.
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116 |
11812738
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One important event triggered by IL-1beta is induction of nitric oxide synthase (iNOS), an enzyme that catalyzes intracellular generation of the cytotoxic free radical NO.
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117 |
11812738
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As assessed by either annexin V staining or DNA fragmentation, IL-1beta caused INS-1 cells to undergo apoptosis.
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118 |
11812738
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That IL-1beta also activated caspase-3 and promoted PKCdelta cleavage suggests that this distal pathway also contributes in the apoptotic response to the cytokine.
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119 |
11911839
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p53-Independent induction of Fas and apoptosis in leukemic cells by an adenosine derivative, Cl-IB-MECA.
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120 |
11911839
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Cl-IB-MECA (> or =30 microM) increased the apoptotic fractions, as determined using fluorescence-activated cell sorting (FACS) analysis, and activated caspase 3 and poly-ADP-ribose-polymerase.
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121 |
11911839
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Cl-IB-MECA failed to activate phospholipase C in HL-60 cells, while UTP activated it through endogenous P2Y(2) receptors.
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122 |
11911839
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This induction of Fas was not dependent upon p53, because p53 is not expressed in an active form in either HL-60 or MOLT-4 cells.
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123 |
11911839
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Therefore, Cl-IB-MECA induced apoptosis via a novel, p53-independent up-regulation of Fas.
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124 |
11994455
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In GM-CSF/IL-4-supplemented bone marrow cultures, DC developed in significantly greater numbers from NOD than from NOR, BALB/c, and BL/6 mice.
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125 |
11994455
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Likewise, DC developed in greater numbers from sorted (lineage(-)IL-7Ralpha(-)SCA-1(-)c-kit(+)) NOD myeloid progenitors in either GM-CSF/IL-4 or GM-CSF/stem cell factor (SCF)/TNF-alpha. [(3)H]TdR incorporation indicated that the increased generation of NOD DC was due to higher levels of myeloid progenitor proliferation.
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126 |
11994455
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Consistent with these findings, NOD and NOR mice had increased numbers of DC in blood and thymus and NOD had an increased proportion of the putative myeloid DC (CD11c(+)CD11b(+)) subset within spleen.
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127 |
12031984
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Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
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128 |
12031984
|
We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
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129 |
12031984
|
Correspondingly, caspase-3 activation as determined by enzymatic assay and mitochondrial cytochrome c release detected by Western blotting analysis were observed.
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130 |
12031984
|
Caspase-3 activation with a concomitant mitochondrial cytochrome c release was also observed.
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131 |
12031984
|
Hyperglycemia-induced myocardial apoptosis is mediated, at least in part, by activation of the cytochrome c-activated caspase-3 pathway, which may be triggered by ROS derived from high levels of glucose.
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132 |
12031984
|
Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
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133 |
12031984
|
We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
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134 |
12031984
|
Correspondingly, caspase-3 activation as determined by enzymatic assay and mitochondrial cytochrome c release detected by Western blotting analysis were observed.
|
135 |
12031984
|
Caspase-3 activation with a concomitant mitochondrial cytochrome c release was also observed.
|
136 |
12031984
|
Hyperglycemia-induced myocardial apoptosis is mediated, at least in part, by activation of the cytochrome c-activated caspase-3 pathway, which may be triggered by ROS derived from high levels of glucose.
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137 |
12031984
|
Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
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138 |
12031984
|
We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
|
139 |
12031984
|
Correspondingly, caspase-3 activation as determined by enzymatic assay and mitochondrial cytochrome c release detected by Western blotting analysis were observed.
|
140 |
12031984
|
Caspase-3 activation with a concomitant mitochondrial cytochrome c release was also observed.
|
141 |
12031984
|
Hyperglycemia-induced myocardial apoptosis is mediated, at least in part, by activation of the cytochrome c-activated caspase-3 pathway, which may be triggered by ROS derived from high levels of glucose.
|
142 |
12031984
|
Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
|
143 |
12031984
|
We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
|
144 |
12031984
|
Correspondingly, caspase-3 activation as determined by enzymatic assay and mitochondrial cytochrome c release detected by Western blotting analysis were observed.
|
145 |
12031984
|
Caspase-3 activation with a concomitant mitochondrial cytochrome c release was also observed.
|
146 |
12031984
|
Hyperglycemia-induced myocardial apoptosis is mediated, at least in part, by activation of the cytochrome c-activated caspase-3 pathway, which may be triggered by ROS derived from high levels of glucose.
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147 |
12031984
|
Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
|
148 |
12031984
|
We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
|
149 |
12031984
|
Correspondingly, caspase-3 activation as determined by enzymatic assay and mitochondrial cytochrome c release detected by Western blotting analysis were observed.
|
150 |
12031984
|
Caspase-3 activation with a concomitant mitochondrial cytochrome c release was also observed.
|
151 |
12031984
|
Hyperglycemia-induced myocardial apoptosis is mediated, at least in part, by activation of the cytochrome c-activated caspase-3 pathway, which may be triggered by ROS derived from high levels of glucose.
|
152 |
12082100
|
Differential roles of insulin receptor substrates in the anti-apoptotic function of insulin-like growth factor-1 and insulin.
|
153 |
12082100
|
Insulin-like growth factor-1 (IGF-1) and insulin are known to prevent apoptosis.
|
154 |
12082100
|
The signaling network of IGF-1 and insulin occurs via multiple pathways involving different insulin receptor substrates (IRSs).
|
155 |
12082100
|
To define their roles in the anti-apoptotic function of IGF-1 and insulin, we established brown pre-adipocyte cell lines from wild-type and IRS knockout (KO) animals.
|
156 |
12082100
|
In response to 16 h of serum deprivation, IRS-1-deficient cells showed a significant decrease in response to IGF-1 protection from apoptosis, whereas no changes were observed in the IRS-2, IRS-3, or IRS-4 KO cells.
|
157 |
12082100
|
At this early time point, IGF-1 and insulin were able to protect both wild-type and IRS-1 KO cells from death by 85-90%.
|
158 |
12082100
|
After a longer period of serum deprivation, the protective ability of insulin and IGF-1 was decreased, and this was especially reduced in the IRS-1 KO cells.
|
159 |
12082100
|
Reconstitution of these cells with IRS-1, IRS-2, IRS-3, or IRS-1/IRS-2 chimeras restored the anti-apoptotic effects of IGF-1, whereas overexpression of IRS-4 had no effect at long time points and actually reduced the effect of IGF-1 at the short time point.
|
160 |
12082100
|
Phosphorylation of the transcription factors cAMP response element-binding protein and FKHR by IGF-1 and insulin was markedly reduced in IRS-1 KO cells.
|
161 |
12082100
|
In addition, both IGF-1 and insulin prevented caspase-3 cleavage in the wild-type cells, and this effect was greatly reduced in the IRS-1-deficient cells.
|
162 |
12082100
|
These findings suggest that the IRS proteins may play differential roles in the anti-apoptotic effects of IGF-1 and insulin in brown pre-adipocytes, with IRS-1 being predominant, possibly acting through caspase-3-, CREB-, and FKHR-dependent mechanisms.
|
163 |
12082100
|
Differential roles of insulin receptor substrates in the anti-apoptotic function of insulin-like growth factor-1 and insulin.
|
164 |
12082100
|
Insulin-like growth factor-1 (IGF-1) and insulin are known to prevent apoptosis.
|
165 |
12082100
|
The signaling network of IGF-1 and insulin occurs via multiple pathways involving different insulin receptor substrates (IRSs).
|
166 |
12082100
|
To define their roles in the anti-apoptotic function of IGF-1 and insulin, we established brown pre-adipocyte cell lines from wild-type and IRS knockout (KO) animals.
|
167 |
12082100
|
In response to 16 h of serum deprivation, IRS-1-deficient cells showed a significant decrease in response to IGF-1 protection from apoptosis, whereas no changes were observed in the IRS-2, IRS-3, or IRS-4 KO cells.
|
168 |
12082100
|
At this early time point, IGF-1 and insulin were able to protect both wild-type and IRS-1 KO cells from death by 85-90%.
|
169 |
12082100
|
After a longer period of serum deprivation, the protective ability of insulin and IGF-1 was decreased, and this was especially reduced in the IRS-1 KO cells.
|
170 |
12082100
|
Reconstitution of these cells with IRS-1, IRS-2, IRS-3, or IRS-1/IRS-2 chimeras restored the anti-apoptotic effects of IGF-1, whereas overexpression of IRS-4 had no effect at long time points and actually reduced the effect of IGF-1 at the short time point.
|
171 |
12082100
|
Phosphorylation of the transcription factors cAMP response element-binding protein and FKHR by IGF-1 and insulin was markedly reduced in IRS-1 KO cells.
|
172 |
12082100
|
In addition, both IGF-1 and insulin prevented caspase-3 cleavage in the wild-type cells, and this effect was greatly reduced in the IRS-1-deficient cells.
|
173 |
12082100
|
These findings suggest that the IRS proteins may play differential roles in the anti-apoptotic effects of IGF-1 and insulin in brown pre-adipocytes, with IRS-1 being predominant, possibly acting through caspase-3-, CREB-, and FKHR-dependent mechanisms.
|
174 |
12137925
|
These abnormalities were associated with DNA fragmentation, positive TUNEL staining, elevated Bax/Bcl-x(L) ratio, increased caspase 3 activities and decreased neuronal densities in diabetic hippocampi.
|
175 |
12137925
|
Western blotting and in situ hybridization revealed significant reductions in the expression of IGF-I, IGF-II, IGF-IR and IR preceding (2 months) and accompanying (8 months) the functional cognitive impairments and the apoptotic neuronal loss in hippocampus.
|
176 |
12145177
|
High D-glucose significantly increased bax protein, but not bcl-2, and activated caspase 3-like and 9, whereas HGF significantly increased bcl-2 expression without affecting bax level and attenuated the increase in caspase 3 and 9 activity.
|
177 |
12145177
|
Interestingly, high D-glucose resulted in translocation of bax protein from cytosol to the mitochondrial membrane, whereas HGF inhibited the bax translocation.
|
178 |
12145177
|
These findings suggest that HGF can activate bcl-2 expression and inhibit translocation of bax protein upstream of the mitochondria, thereby leading to the inhibition of caspase 3 and 9 activation.
|
179 |
12145177
|
High D-glucose significantly increased bax protein, but not bcl-2, and activated caspase 3-like and 9, whereas HGF significantly increased bcl-2 expression without affecting bax level and attenuated the increase in caspase 3 and 9 activity.
|
180 |
12145177
|
Interestingly, high D-glucose resulted in translocation of bax protein from cytosol to the mitochondrial membrane, whereas HGF inhibited the bax translocation.
|
181 |
12145177
|
These findings suggest that HGF can activate bcl-2 expression and inhibit translocation of bax protein upstream of the mitochondria, thereby leading to the inhibition of caspase 3 and 9 activation.
|
182 |
12164482
|
PARP is activated at an intermediate stage of apoptosis and is then cleaved and inactivated at a late stage by apoptotic proteases, namely caspase-3/CPP-32/Yama/apopain and caspase-7.
|
183 |
12370856
|
In islets cultured for 7 days in the presence of high FFA or for 3 days in the presence of high glucose levels, we observed: (1) a 2- to 3-fold increase of apoptotic cells conjugated with annexin-V FITC and PI; (2) a 4- to 6-fold increase of cytoplasmatic DNA fragments; (3) a 3- to 4-fold increase of caspase 3 activity; and (4) a significant increase of insulin positive apoptotic cells as detected with the TUNEL method.
|
184 |
12370856
|
RT-PCR analysis indicated in islets exposed to high FFA or glucose levels an increase of bax (proapoptotic gene), a reduction of bcl-2 (antiapoptotic gene), and a slight (although not significant) increase in caspase 3 expression.
|
185 |
12370856
|
In islets cultured for 7 days in the presence of high FFA or for 3 days in the presence of high glucose levels, we observed: (1) a 2- to 3-fold increase of apoptotic cells conjugated with annexin-V FITC and PI; (2) a 4- to 6-fold increase of cytoplasmatic DNA fragments; (3) a 3- to 4-fold increase of caspase 3 activity; and (4) a significant increase of insulin positive apoptotic cells as detected with the TUNEL method.
|
186 |
12370856
|
RT-PCR analysis indicated in islets exposed to high FFA or glucose levels an increase of bax (proapoptotic gene), a reduction of bcl-2 (antiapoptotic gene), and a slight (although not significant) increase in caspase 3 expression.
|
187 |
12399437
|
GLP-1 produced a significant increase of insulin secretion, which was paralleled by a decrease in plasma glucose levels (P < 0.001 and P < 0.01, respectively).
|
188 |
12399437
|
Ex vivo immunostaining with the marker of cell proliferation, Ki-67, showed that the metabolic changes observed in rats treated with GLP-1 were associated with an increase in cell proliferation of the endocrine and exocrine component of the pancreas.
|
189 |
12399437
|
Double immunostaining for the apoptotic marker caspase-3 and for insulin showed a significant reduction of caspase-3 expression and an increase in insulin content in GLP-1-treated animals.
|
190 |
12490536
|
Aldose reductase mediates cytotoxic signals of hyperglycemia and TNF-alpha in human lens epithelial cells.
|
191 |
12490536
|
Herein we report that inhibition of the polyol pathway enzyme aldose reductase (AR) by two structurally unrelated inhibitors--sorbinil and tolrestat--prevents, in the human lens epithelial cell line B-3, the apoptosis and activation of caspase-3 caused by exposure to high glucose levels or TNF-alpha.
|
192 |
12490536
|
Inhibition of AR attenuated TNF-alpha and hyperglycemia-induced activation of protein kinase C (PKC), phosphorylation of the inhibitory subunit of nuclear factor-kappaB (NF-kappaB), and stimulation of NF-kappaB, but it did not prevent the activation of NF-kappaB and PKC by phorbol ester.
|
193 |
12490536
|
Inhibition of AR also attenuated the increase in p38 mitogen-activated protein kinase and c-Jun N-terminal kinase phosphorylation.
|
194 |
12540624
|
Subsequently, caspase-3 was activated and poly-ADP ribose polymerase (PARP) was cleaved.
|
195 |
12568116
|
Transmembrane TNF and IFNgamma induce caspase-independent death of primary mouse pancreatic beta cells.
|
196 |
12568116
|
We have shown that TNF + IFNgamma induce islet cell death in vitro.
|
197 |
12568116
|
Either sTNF or tmTNF, together with IFNgamma, induced caspase-dependent cell death of the NIT-1 insulinoma cell line, as measured by DNA fragmentation and a fluorogenic caspase 3 activation assay.
|
198 |
12568116
|
TNF + IFNgamma did not induce caspase 3 activation in primary mouse islets.
|
199 |
12568116
|
Transmembrane TNF and IFNgamma induce caspase-independent death of primary mouse pancreatic beta cells.
|
200 |
12568116
|
We have shown that TNF + IFNgamma induce islet cell death in vitro.
|
201 |
12568116
|
Either sTNF or tmTNF, together with IFNgamma, induced caspase-dependent cell death of the NIT-1 insulinoma cell line, as measured by DNA fragmentation and a fluorogenic caspase 3 activation assay.
|
202 |
12568116
|
TNF + IFNgamma did not induce caspase 3 activation in primary mouse islets.
|
203 |
12594227
|
VLDL-induced apoptosis of beta-cells involved caspase-3 cleavage and reduction in the levels of the c-Jun N-terminal kinase-interacting protein-1.
|
204 |
12594227
|
The protective effects of HDL were mediated, in part, by inhibition of caspase-3 cleavage and activation of Akt/protein kinase B.
|
205 |
12594227
|
VLDL-induced apoptosis of beta-cells involved caspase-3 cleavage and reduction in the levels of the c-Jun N-terminal kinase-interacting protein-1.
|
206 |
12594227
|
The protective effects of HDL were mediated, in part, by inhibition of caspase-3 cleavage and activation of Akt/protein kinase B.
|
207 |
12623123
|
Tumor necrosis factor alpha-induced apoptosis in astrocytes is prevented by the activation of P2Y6, but not P2Y4 nucleotide receptors.
|
208 |
12623123
|
The physiological role of the uracil nucleotide-preferring P2Y(6) and P2Y(4) receptors is still unclear, although they are widely distributed in various tissues.
|
209 |
12623123
|
In an effort to identify their biological functions, we found that activation by UDP of the rat P2Y(6) receptor expressed in 1321N1 human astrocytes significantly reduced cell death induced by tumor necrosis factor alpha (TNF alpha).
|
210 |
12623123
|
Activation of the human P2Y(4) receptor expressed in 1321N1 cells by UTP did not elicit this protective effect, although both receptors were coupled to phospholipase C.
|
211 |
12623123
|
The activation of P2Y(6) receptors prevented the activation of both caspase-3 and caspase-8 resulting from TNF alpha exposure.
|
212 |
12623123
|
Therefore, it is suggested that P2Y(6) receptors interact rapidly with the TNF alpha-related intracellular signals to prevent apoptotic cell death.
|
213 |
12632104
|
Like the Fas/Fas-L system, the tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) transduces apoptosis in a number of cancers; it is also a clinical candidate for cancer therapy.
|
214 |
12632104
|
Caspase-3 activity and the expression of four types of TRAIL receptor mRNAs were quantitated in tumor and contiguous non-tumor tissues obtained from 27 patients with HCC (HBV-related in 10; HCV-related in 17).
|
215 |
12632104
|
The expression of caspase-3 and TRAIL receptors was also examined immunohistochemically.
|
216 |
12632104
|
A significantly positive correlation was observed between caspase-3 activity and TRAIL-R1, -R2.
|
217 |
12632104
|
Caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue were significantly lower than those in non-tumor tissue in HBV-related HCC.
|
218 |
12632104
|
Some HCV-related HCC cases, however, demonstrated elevated caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue.
|
219 |
12632104
|
Both TRAIL-R1 and -R2 showed coefficient correlation with caspase-3 activity, and were strongly associated with apoptosis in human HCC.
|
220 |
12632104
|
Like the Fas/Fas-L system, the tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) transduces apoptosis in a number of cancers; it is also a clinical candidate for cancer therapy.
|
221 |
12632104
|
Caspase-3 activity and the expression of four types of TRAIL receptor mRNAs were quantitated in tumor and contiguous non-tumor tissues obtained from 27 patients with HCC (HBV-related in 10; HCV-related in 17).
|
222 |
12632104
|
The expression of caspase-3 and TRAIL receptors was also examined immunohistochemically.
|
223 |
12632104
|
A significantly positive correlation was observed between caspase-3 activity and TRAIL-R1, -R2.
|
224 |
12632104
|
Caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue were significantly lower than those in non-tumor tissue in HBV-related HCC.
|
225 |
12632104
|
Some HCV-related HCC cases, however, demonstrated elevated caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue.
|
226 |
12632104
|
Both TRAIL-R1 and -R2 showed coefficient correlation with caspase-3 activity, and were strongly associated with apoptosis in human HCC.
|
227 |
12632104
|
Like the Fas/Fas-L system, the tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) transduces apoptosis in a number of cancers; it is also a clinical candidate for cancer therapy.
|
228 |
12632104
|
Caspase-3 activity and the expression of four types of TRAIL receptor mRNAs were quantitated in tumor and contiguous non-tumor tissues obtained from 27 patients with HCC (HBV-related in 10; HCV-related in 17).
|
229 |
12632104
|
The expression of caspase-3 and TRAIL receptors was also examined immunohistochemically.
|
230 |
12632104
|
A significantly positive correlation was observed between caspase-3 activity and TRAIL-R1, -R2.
|
231 |
12632104
|
Caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue were significantly lower than those in non-tumor tissue in HBV-related HCC.
|
232 |
12632104
|
Some HCV-related HCC cases, however, demonstrated elevated caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue.
|
233 |
12632104
|
Both TRAIL-R1 and -R2 showed coefficient correlation with caspase-3 activity, and were strongly associated with apoptosis in human HCC.
|
234 |
12632104
|
Like the Fas/Fas-L system, the tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) transduces apoptosis in a number of cancers; it is also a clinical candidate for cancer therapy.
|
235 |
12632104
|
Caspase-3 activity and the expression of four types of TRAIL receptor mRNAs were quantitated in tumor and contiguous non-tumor tissues obtained from 27 patients with HCC (HBV-related in 10; HCV-related in 17).
|
236 |
12632104
|
The expression of caspase-3 and TRAIL receptors was also examined immunohistochemically.
|
237 |
12632104
|
A significantly positive correlation was observed between caspase-3 activity and TRAIL-R1, -R2.
|
238 |
12632104
|
Caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue were significantly lower than those in non-tumor tissue in HBV-related HCC.
|
239 |
12632104
|
Some HCV-related HCC cases, however, demonstrated elevated caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue.
|
240 |
12632104
|
Both TRAIL-R1 and -R2 showed coefficient correlation with caspase-3 activity, and were strongly associated with apoptosis in human HCC.
|
241 |
12632104
|
Like the Fas/Fas-L system, the tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) transduces apoptosis in a number of cancers; it is also a clinical candidate for cancer therapy.
|
242 |
12632104
|
Caspase-3 activity and the expression of four types of TRAIL receptor mRNAs were quantitated in tumor and contiguous non-tumor tissues obtained from 27 patients with HCC (HBV-related in 10; HCV-related in 17).
|
243 |
12632104
|
The expression of caspase-3 and TRAIL receptors was also examined immunohistochemically.
|
244 |
12632104
|
A significantly positive correlation was observed between caspase-3 activity and TRAIL-R1, -R2.
|
245 |
12632104
|
Caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue were significantly lower than those in non-tumor tissue in HBV-related HCC.
|
246 |
12632104
|
Some HCV-related HCC cases, however, demonstrated elevated caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue.
|
247 |
12632104
|
Both TRAIL-R1 and -R2 showed coefficient correlation with caspase-3 activity, and were strongly associated with apoptosis in human HCC.
|
248 |
12632104
|
Like the Fas/Fas-L system, the tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) transduces apoptosis in a number of cancers; it is also a clinical candidate for cancer therapy.
|
249 |
12632104
|
Caspase-3 activity and the expression of four types of TRAIL receptor mRNAs were quantitated in tumor and contiguous non-tumor tissues obtained from 27 patients with HCC (HBV-related in 10; HCV-related in 17).
|
250 |
12632104
|
The expression of caspase-3 and TRAIL receptors was also examined immunohistochemically.
|
251 |
12632104
|
A significantly positive correlation was observed between caspase-3 activity and TRAIL-R1, -R2.
|
252 |
12632104
|
Caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue were significantly lower than those in non-tumor tissue in HBV-related HCC.
|
253 |
12632104
|
Some HCV-related HCC cases, however, demonstrated elevated caspase-3 activity and TRAIL-R1, -R2 expression in tumor tissue.
|
254 |
12632104
|
Both TRAIL-R1 and -R2 showed coefficient correlation with caspase-3 activity, and were strongly associated with apoptosis in human HCC.
|
255 |
12639759
|
Glucose-induced apoptosis was partially but significantly prevented by SNK-860, an inhibitor of calcium-dependent cysteine protease, calpain, or GSH supplementation, and completely normalized by a caspase-3 inhibitor.
|
256 |
12639759
|
These observations suggest that glucose-induced apoptosis in retinal pericytes, as one of the pathogenic factors of diabetic retinopathy, would be mediated through an aldose reductase-sensitive pathway including calcium-calpain cascade and increased oxidative stress, and that caspase-3 would be located furthest downstream of these apoptotic signals.
|
257 |
12639759
|
Glucose-induced apoptosis was partially but significantly prevented by SNK-860, an inhibitor of calcium-dependent cysteine protease, calpain, or GSH supplementation, and completely normalized by a caspase-3 inhibitor.
|
258 |
12639759
|
These observations suggest that glucose-induced apoptosis in retinal pericytes, as one of the pathogenic factors of diabetic retinopathy, would be mediated through an aldose reductase-sensitive pathway including calcium-calpain cascade and increased oxidative stress, and that caspase-3 would be located furthest downstream of these apoptotic signals.
|
259 |
12683939
|
AMP-activated protein kinase can induce apoptosis of insulin-producing MIN6 cells through stimulation of c-Jun-N-terminal kinase.
|
260 |
12683939
|
Both conditions induced a sequential activation of AMPK, c-Jun-N-terminal kinase (JNK) and caspase-3.
|
261 |
12683939
|
The effects of AMPK on JNK activation and apoptosis were demonstrated by adenoviral expression of constitutively active AMPK, a condition which reproduced the earlier-described AMPK-dependent effects on pyruvate kinase and acetyl-coA-carboxylase.
|
262 |
12683939
|
The effects of JNK activation on apoptosis were demonstrated by the observations that (i). its inhibition by dicumarol prevented caspase-3 activation and apoptosis, (ii). adenoviral expression of the JNK-interacting scaffold protein JIP-1/IB-1 increased AICA-riboside-induced JNK activation and apoptosis.
|
263 |
12683939
|
In primary beta-cells, AMPK activation was also found to activate JNK, involving primarily the JNK 2 (p54) isoform.
|
264 |
12683939
|
It is concluded that prolonged stimulation of AMPK can induce apoptosis of insulin-producing cells through an activation pathway that involves JNK, and subsequently, caspase-3.
|
265 |
12683939
|
AMP-activated protein kinase can induce apoptosis of insulin-producing MIN6 cells through stimulation of c-Jun-N-terminal kinase.
|
266 |
12683939
|
Both conditions induced a sequential activation of AMPK, c-Jun-N-terminal kinase (JNK) and caspase-3.
|
267 |
12683939
|
The effects of AMPK on JNK activation and apoptosis were demonstrated by adenoviral expression of constitutively active AMPK, a condition which reproduced the earlier-described AMPK-dependent effects on pyruvate kinase and acetyl-coA-carboxylase.
|
268 |
12683939
|
The effects of JNK activation on apoptosis were demonstrated by the observations that (i). its inhibition by dicumarol prevented caspase-3 activation and apoptosis, (ii). adenoviral expression of the JNK-interacting scaffold protein JIP-1/IB-1 increased AICA-riboside-induced JNK activation and apoptosis.
|
269 |
12683939
|
In primary beta-cells, AMPK activation was also found to activate JNK, involving primarily the JNK 2 (p54) isoform.
|
270 |
12683939
|
It is concluded that prolonged stimulation of AMPK can induce apoptosis of insulin-producing cells through an activation pathway that involves JNK, and subsequently, caspase-3.
|
271 |
12683939
|
AMP-activated protein kinase can induce apoptosis of insulin-producing MIN6 cells through stimulation of c-Jun-N-terminal kinase.
|
272 |
12683939
|
Both conditions induced a sequential activation of AMPK, c-Jun-N-terminal kinase (JNK) and caspase-3.
|
273 |
12683939
|
The effects of AMPK on JNK activation and apoptosis were demonstrated by adenoviral expression of constitutively active AMPK, a condition which reproduced the earlier-described AMPK-dependent effects on pyruvate kinase and acetyl-coA-carboxylase.
|
274 |
12683939
|
The effects of JNK activation on apoptosis were demonstrated by the observations that (i). its inhibition by dicumarol prevented caspase-3 activation and apoptosis, (ii). adenoviral expression of the JNK-interacting scaffold protein JIP-1/IB-1 increased AICA-riboside-induced JNK activation and apoptosis.
|
275 |
12683939
|
In primary beta-cells, AMPK activation was also found to activate JNK, involving primarily the JNK 2 (p54) isoform.
|
276 |
12683939
|
It is concluded that prolonged stimulation of AMPK can induce apoptosis of insulin-producing cells through an activation pathway that involves JNK, and subsequently, caspase-3.
|
277 |
12706864
|
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been shown to exert potent cytotoxic activity against many tumor cells but not normal cells.
|
278 |
12706864
|
We found that most TRAIL-resistant and -partial resistant clones expressed low levels of DR5, whereas most TRAIL-sensitive clones expressed high levels of Death Receptor (DR5).
|
279 |
12706864
|
However, there were clones with a range of different TRAIL-sensitivities that had similar levels of DR5 expression.
|
280 |
12706864
|
The expression levels of DR4 and the decoy receptors, DcR1 and DcR2, did not correlate with TRAIL sensitivities.
|
281 |
12706864
|
We also compared the subgroups in terms of the expression of Fas-associated death domain protein (FADD), the levels of activation of Receptor Interacting Protein (RIP) and caspases, and cleavage of Poly (ADP-Ribose)Polymerase (PARP).
|
282 |
12706864
|
After treatment with TRAIL, both TRAIL-sensitive and partial resistant clones showed high levels of activation of caspase-3, caspase-8, RIP and PARP.
|
283 |
12706864
|
Relative basal level and induced level of Phosphoprotein over Expressed in Diabetes/Phosphoprotein Enriched in Astrocytes (PED/PEA-15) after TRAIL treatment were compared in the clones.
|
284 |
12706864
|
TRAIL did not change the PED/PEA-15 level in the clones.
|
285 |
12706864
|
In addition, transduction and expression of the dominant negative form of the I-kBalpha gene did not change TRAIL-sensitivities.
|
286 |
12706864
|
Our results showed that the expression levels of DR5, the activation levels of caspase-8, -3 and RIP were critical factors in determining TRAIL-sensitivities in Jurkat cells.
|
287 |
12763479
|
TCR-activated NOD splenic CD4+ and CD8+ T cells are more resistant to AICD than control strain C57BL/6, BALB/c, and NOR T cells.
|
288 |
12763479
|
NOR CD4+ but not CD8+ T cells are resistant to TCR-induced AICD.
|
289 |
12763479
|
Whereas c-FLIP expression is reduced in activated T cells from control strains, it persists in activated NOD CD8+ T cells and is accompanied by diminished activity of caspase-3 and -8.
|
290 |
12763479
|
IL-4 reduces this c-FLIP expression and increases caspase-3 and -8 activity in activated NOD CD8+ T cells.
|
291 |
12763479
|
Moreover, IL-4 and CD28 costimulation restores the susceptibility of NOD CD8+ T cells to AICD, and this is associated with increased expression of CD25, CD95, CD95L, and TNFR2.
|
292 |
12763479
|
TCR-activated NOD splenic CD4+ and CD8+ T cells are more resistant to AICD than control strain C57BL/6, BALB/c, and NOR T cells.
|
293 |
12763479
|
NOR CD4+ but not CD8+ T cells are resistant to TCR-induced AICD.
|
294 |
12763479
|
Whereas c-FLIP expression is reduced in activated T cells from control strains, it persists in activated NOD CD8+ T cells and is accompanied by diminished activity of caspase-3 and -8.
|
295 |
12763479
|
IL-4 reduces this c-FLIP expression and increases caspase-3 and -8 activity in activated NOD CD8+ T cells.
|
296 |
12763479
|
Moreover, IL-4 and CD28 costimulation restores the susceptibility of NOD CD8+ T cells to AICD, and this is associated with increased expression of CD25, CD95, CD95L, and TNFR2.
|
297 |
12802593
|
The virtual absence of caspase-3 immunolabelling in most beta cells even during heightened beta cell loss supports their rapid clearance following their death during insulin-dependent diabetes mellitus.
|
298 |
12825835
|
P2Y6 nucleotide receptor activates PKC to protect 1321N1 astrocytoma cells against tumor necrosis factor-induced apoptosis.
|
299 |
12825835
|
We recently reported that the activation by UDP of rat P2Y6 nucleotide receptors expressed in 1321N1 astrocytoma cells protected them from TNFalpha-induced apoptosis by suppressing activation of caspase 3 and 8.
|
300 |
12825835
|
Cell death was induced in 1321N1 astrocytoma cells permanently expressing the rat P2Y6 receptor by exposure to TNFalpha in the presence of cycloheximide.
|
301 |
12825835
|
The activation of P2Y6 receptors by UDP both protected the astrocytes from TNF-alpha induced apoptosis and activated protein kinase C (PKC) isotypes.
|
302 |
12825835
|
The antiapoptotic protein, Akt, was not affected by P2Y6 receptor activation.
|
303 |
12825835
|
The addition of phospholipase C (PLC) inhibitors, D609 or U73122, partially antagonized both UDP-induced protection and PKC activation.
|
304 |
12861046
|
In this study, we examine whether apoptosis plays a relevant role in the development of diabetic glycogen nephrosis and explore the involvement of the Fas/Fas-L system and the activation of the caspase cascade.
|
305 |
12861046
|
Western blot analysis demonstrated enhanced expression of Fas receptor/ligand and the activation of the caspase cascade in these cells because cleaved forms of the caspase-3, -8, and -9 were detected.
|
306 |
12861046
|
Our results indicate that epithelial cells in thick ascending limbs and distal tubules that develop glycogen nephrosis in response to hyperglycemia undergo Fas/Fas-L mediated cell death.
|
307 |
12941769
|
Pancreatic-derived factor (FAM3B), a novel islet cytokine, induces apoptosis of insulin-secreting beta-cells.
|
308 |
12941769
|
PANDER protein was present in alpha- and beta-cells of pancreatic islets, insulin-secreting beta-TC3 cells, and glucagon-secreting alpha-TC cells.
|
309 |
12941769
|
However, PANDER activated caspase-3.
|
310 |
12941777
|
In contrast, diabetic sensory neurons had elevated expression of the DNA repair enzyme poly(ADP-ribose) polymerase (PARP) in their nuclei, cytoplasm, and proximal axonal segments not overlapping with caspase-3 localization.
|
311 |
12960095
|
The peptide hormone, glucagon-like peptide 1 (GLP-1), has been shown to increase glucose-dependent insulin secretion, enhance insulin gene transcription, expand islet cell mass, and inhibit beta-cell apoptosis in animal models of diabetes.
|
312 |
12960095
|
Human islets were cultured for 5 d in the presence, or absence, of GLP-1 (10 nm, added every 12 h) and studied for viability and expression of proapoptotic (caspase-3) and antiapoptotic factors (bcl-2) as well as glucose-dependent insulin production.
|
313 |
12960095
|
The antiapoptotic effect of GLP-1 was associated with the down-regulation of active caspase-3 (P < 0.001) and the up-regulation of bcl-2 (P < 0.01).
|
314 |
12960095
|
The effect of GLP-1 on the intracellular levels of bcl-2 and caspase-3 was observed at the mRNA and protein levels.
|
315 |
12960095
|
Intracellular insulin content was markedly enhanced in islets cultured with GLP-1 vs. control (P < 0.001, at d 5), and there was a parallel GLP-1-dependent potentiation of glucose-dependent insulin secretion (P < 0.01 at d 3; P < 0.05 at d 5).
|
316 |
12960095
|
The peptide hormone, glucagon-like peptide 1 (GLP-1), has been shown to increase glucose-dependent insulin secretion, enhance insulin gene transcription, expand islet cell mass, and inhibit beta-cell apoptosis in animal models of diabetes.
|
317 |
12960095
|
Human islets were cultured for 5 d in the presence, or absence, of GLP-1 (10 nm, added every 12 h) and studied for viability and expression of proapoptotic (caspase-3) and antiapoptotic factors (bcl-2) as well as glucose-dependent insulin production.
|
318 |
12960095
|
The antiapoptotic effect of GLP-1 was associated with the down-regulation of active caspase-3 (P < 0.001) and the up-regulation of bcl-2 (P < 0.01).
|
319 |
12960095
|
The effect of GLP-1 on the intracellular levels of bcl-2 and caspase-3 was observed at the mRNA and protein levels.
|
320 |
12960095
|
Intracellular insulin content was markedly enhanced in islets cultured with GLP-1 vs. control (P < 0.001, at d 5), and there was a parallel GLP-1-dependent potentiation of glucose-dependent insulin secretion (P < 0.01 at d 3; P < 0.05 at d 5).
|
321 |
12960095
|
The peptide hormone, glucagon-like peptide 1 (GLP-1), has been shown to increase glucose-dependent insulin secretion, enhance insulin gene transcription, expand islet cell mass, and inhibit beta-cell apoptosis in animal models of diabetes.
|
322 |
12960095
|
Human islets were cultured for 5 d in the presence, or absence, of GLP-1 (10 nm, added every 12 h) and studied for viability and expression of proapoptotic (caspase-3) and antiapoptotic factors (bcl-2) as well as glucose-dependent insulin production.
|
323 |
12960095
|
The antiapoptotic effect of GLP-1 was associated with the down-regulation of active caspase-3 (P < 0.001) and the up-regulation of bcl-2 (P < 0.01).
|
324 |
12960095
|
The effect of GLP-1 on the intracellular levels of bcl-2 and caspase-3 was observed at the mRNA and protein levels.
|
325 |
12960095
|
Intracellular insulin content was markedly enhanced in islets cultured with GLP-1 vs. control (P < 0.001, at d 5), and there was a parallel GLP-1-dependent potentiation of glucose-dependent insulin secretion (P < 0.01 at d 3; P < 0.05 at d 5).
|
326 |
12960105
|
Here, we show that IL-1beta administration in vivo to Wistar rats transiently increases manganese superoxide dismutase activity, whereas inducible NO synthase is not detected, and the levels of nitrate+nitrate do not change.
|
327 |
12960105
|
Moreover, a significant decrease of mitochondrial aconitase, leading to a rise of hydroperoxides, and islet beta-cell apoptosis, involving caspase-3 and -8, is observed.
|
328 |
12960105
|
Analysis of adhesion molecules in beta-cells showed that intercellular adhesion molecule-1 is highly expressed 48 h after IL-1beta administration and that this is concomitant to the fall of manganese superoxide dismutase activity.
|
329 |
14532296
|
Furthermore, we showed that specific jnk1 antisense oligonucleotides, which suppress phospho-JNK1 expression, effectively decreased human amylin-induced activation of c-Jun.
|
330 |
14532296
|
Studies of the interplay between the caspase cascade and the JNK pathway showed that both apoptosis and caspase-3 activation were suppressed by treatment with a JNK inhibitor and by transfection of antisense jnk1 oligonucleotides or antisense-c-jun, whereas a selective inhibitor of caspases-1 and -3 prevented apoptosis but not c-Jun activation.
|
331 |
14532296
|
However, selective JNK inhibition had no effect on caspase-8 activation, and selective caspase-8 inhibition only partially suppressed apoptosis and c-Jun activation, indicating that caspase-8 may partially act upstream of the JNK pathway.
|
332 |
14532296
|
Fibrillogenic amylin can evoke a JNK1-mediated apoptotic pathway, which is partially dependent and partially independent of caspase-8, and in which caspase-3 acts as a common downstream effector.
|
333 |
14532296
|
Furthermore, we showed that specific jnk1 antisense oligonucleotides, which suppress phospho-JNK1 expression, effectively decreased human amylin-induced activation of c-Jun.
|
334 |
14532296
|
Studies of the interplay between the caspase cascade and the JNK pathway showed that both apoptosis and caspase-3 activation were suppressed by treatment with a JNK inhibitor and by transfection of antisense jnk1 oligonucleotides or antisense-c-jun, whereas a selective inhibitor of caspases-1 and -3 prevented apoptosis but not c-Jun activation.
|
335 |
14532296
|
However, selective JNK inhibition had no effect on caspase-8 activation, and selective caspase-8 inhibition only partially suppressed apoptosis and c-Jun activation, indicating that caspase-8 may partially act upstream of the JNK pathway.
|
336 |
14532296
|
Fibrillogenic amylin can evoke a JNK1-mediated apoptotic pathway, which is partially dependent and partially independent of caspase-8, and in which caspase-3 acts as a common downstream effector.
|
337 |
14561487
|
The JNK binding domain of islet-brain 1 inhibits IL-1 induced JNK activity and apoptosis but not the transcription of key proapoptotic or protective genes in insulin-secreting cell lines.
|
338 |
14561487
|
The stress-activated protein kinase c-Jun NH2-terminal kinase (JNK) is a central signal for interleukin-1beta (IL-1beta)-induced apoptosis in insulin-producing beta-cells.
|
339 |
14561487
|
The cell-permeable peptide inhibitor of JNK (JNKI1), that introduces the JNK binding domain (JBD) of the scaffold protein islet-brain 1 (IB1) inside cells, effectively prevents beta-cell death caused by this cytokine.
|
340 |
14561487
|
To define the molecular targets of JNK involved in cytokine-induced beta-cell apoptosis we investigated whether JNKI1 or stable expression of JBD affected the expression of selected pro- and anti-apoptotic genes induced in rat (RIN-5AH-T2B) and mouse (betaTC3) insulinoma cells exposed to IL-1beta.
|
341 |
14561487
|
Inhibition of JNK significantly reduced phosphorylation of the specific JNK substrate c-Jun (p<0.05), IL-1beta-induced apoptosis (p<0.001), and IL-1beta-mediated c-fos gene expression.
|
342 |
14561487
|
However, neither JNKI1 nor JBD did influence IL-1beta-induced NO synthesis or iNOS expression or the transcription of the genes encoding mitochondrial manganese superoxide dismutase (MnSOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase rho (GSTrho), heat shock protein (HSP) 70, IL-1beta-converting enzyme (ICE), caspase-3, apoptosis-inducing factor (AIF), Bcl-2 or Bcl-xL.
|
343 |
14634011
|
Apolipoprotein B production reduces lipotoxic cardiomyopathy: studies in heart-specific lipoprotein lipase transgenic mouse.
|
344 |
14634011
|
Transgenic mice expressing non-transferable lipoprotein lipase (LpL) with a glycosylated phosphatidyl-inositol (GPI) anchor in cardiomyocytes have dilated cardiomyopathy.
|
345 |
14634011
|
Hearts from 3-month-old mice expressing GPI-anchored human LpL (hLpLGPI) mice had increased fatty acid oxidation and heart failure genes and decreased glucose transporter genes. 6-month-old mice had increased mRNA expression and activation of the apoptosis marker caspase-3.
|
346 |
14634011
|
To test whether lipid accumulation in the hLpLGPI heart is reduced by cardiac expression of apoB, hLpLGPI mice were bred with transgenic human apoB (HuB)-expressing mice.
|
347 |
14634011
|
Hearts of HuB/hLpLGPI mice had less triglyceride (38%) and free fatty acids (19%), secreted more apoB, and expressed less atrial natriuretic factor (ANF) and brain natriuretic peptide (BNP) and more glucose transporter 4 (GLUT4).
|
348 |
14664702
|
Diminished penile expression of vascular endothelial growth factor and its receptors at the insulin-resistant stage of a type II diabetic rat model: a possible cause for erectile dysfunction in diabetes.
|
349 |
14664702
|
We hypothesized that expressions of VEGF, its receptors and its signaling pathway Akt may be drastically altered in diabetic penile tIssues and their alterations may modulate penile expression of the molecules that are believed to play a role in diabetic ED.
|
350 |
14664702
|
We determined protein and mRNA expressions of VEGF, its receptors, Akt, nitric oxide synthase isoforms, and apoptosis-related molecules in the penis using immunohistochemistry, Western blotting, in situ hybridization, and real-time quantitative PCR analyses.
|
351 |
14664702
|
OLETF rats showed marked reductions in penile expression of VEGF, its two receptors and Akt.
|
352 |
14664702
|
Furthermore, while anti-apoptotic markers, Bcl-2 and phosphorylated Bad, were down-regulated, pro-apoptotic markers, active caspase-3 and Bax, were up-regulated, resulting in the appearance of apoptotic cells in the penile tIssues of OLETF rats.
|
353 |
14679058
|
From day 7, caspase-3 expression began to increase in intra-islet macrophages and reached a peak at days 11 and 14, when a small number of CD4 and CD8 T cells also showed positive labeling.
|
354 |
14702115
|
Since cytokines or insulin resistance are common in catabolic states and will activate caspases, we examined whether caspase-3 would break down actomyosin.
|
355 |
14702115
|
Serum deprivation of L6 muscle cells stimulates actin cleavage and proteolysis; insulin blocks these responses by a mechanism requiring PI3K.
|
356 |
14708732
|
The inhibitor of apoptosis protein (IAP) Survivin has an anti-apoptotic function mediated by several mechanisms; these include inhibiting caspase 3 and caspase 7.
|
357 |
14966349
|
NF-kappaB activation and increased caspase-3 activity were detected.
|
358 |
14966349
|
Apoptosis was also inhibited by the caspase-3 inhibitor, Z-DEVD-fmk, or the NF-kappaB inhibitor, pyrrolidine dithiocarbamate.
|
359 |
14966349
|
NF-kappaB activation and increased caspase-3 activity were detected.
|
360 |
14966349
|
Apoptosis was also inhibited by the caspase-3 inhibitor, Z-DEVD-fmk, or the NF-kappaB inhibitor, pyrrolidine dithiocarbamate.
|
361 |
15006692
|
A subpopulation of neurons within the SON at this time point demonstrated positive staining for cleaved caspase-3 and TUNEL, two markers of apoptosis.
|
362 |
15141093
|
Leptin modulates beta cell expression of IL-1 receptor antagonist and release of IL-1beta in human islets.
|
363 |
15141093
|
IL-1 receptor antagonist (IL-1Ra) is a naturally occurring antagonist of IL-1beta and protects cultured human islets from glucotoxicity.
|
364 |
15141093
|
Therefore, the balance of IL-1beta and IL-1Ra may play a crucial role in the pathogenesis of diabetes.
|
365 |
15141093
|
In vitro, chronic exposure of human islets to leptin, a hormone secreted by adipocytes, decreased beta cell production of IL-1Ra and induced IL-1beta release from the islet preparation, leading to impaired beta cell function, caspase-3 activation, and apoptosis.
|
366 |
15141093
|
These findings demonstrate expression of IL-1Ra in the human beta cell, providing localized protection against leptin- and glucose-induced islet IL-1beta.
|
367 |
15153522
|
Role of calcium in pancreatic islet cell death by IFN-gamma/TNF-alpha.
|
368 |
15153522
|
We studied the intracellular events associated with pancreatic beta cell apoptosis by IFN-gamma/TNF-alpha synergism.
|
369 |
15153522
|
IFN-gamma/TNF-alpha treatment of MIN6N8 insulinoma cells increased the amplitude of high voltage-activated Ca(2+) currents, while treatment with IFN-gamma or TNF-alpha alone did not.
|
370 |
15153522
|
Cytosolic Ca(2+) concentration ([Ca(2+)](c)) was also increased by IFN-gamma/TNF-alpha treatment.
|
371 |
15153522
|
Blockade of L-type Ca(2+) channel by nifedipine abrogated death of insulinoma cells by IFN-gamma/TNF-alpha.
|
372 |
15153522
|
Diazoxide that attenuates voltage-activated Ca(2+) currents inhibited MIN6N8 cell death by IFN-gamma/TNF-alpha, while glibenclamide that accentuates voltage-activated Ca(2+) currents augmented insulinoma cell death.
|
373 |
15153522
|
A protein kinase C inhibitor attenuated MIN6N8 cell death and the increase in [Ca(2+)](c) by IFN-gamma/TNF-alpha.
|
374 |
15153522
|
Following the increase in [Ca(2+)](c), calpain was activated, and calpain inhibitors decreased insulinoma cell death by IFN-gamma/TNF-alpha.
|
375 |
15153522
|
As a downstream of calpain, calcineurin was activated and the inhibition of calcineurin activation by FK506 diminished insulinoma cell death by IFN-gamma/TNF-alpha.
|
376 |
15153522
|
BAD phosphorylation was decreased by IFN-gamma/TNF-alpha because of the increased calcineurin activity, which was reversed by FK506.
|
377 |
15153522
|
IFN-gamma/TNF-alpha induced cytochrome c translocation from mitochondria to cytoplasm and activation of caspase-9.
|
378 |
15153522
|
Effector caspases such as caspase-3 or -7 were also activated by IFN-gamma/TNF-alpha treatment.
|
379 |
15153522
|
These results indicate that IFN-gamma/TNF-alpha synergism induces pancreatic beta cell apoptosis by Ca(2+) channel activation followed by downstream intracellular events such as mitochondrial events and caspase activation and also suggest the therapeutic potential of Ca(2+) modulation in type 1 diabetes.
|
380 |
15153564
|
Regulation of muscle protein degradation: coordinated control of apoptotic and ubiquitin-proteasome systems by phosphatidylinositol 3 kinase.
|
381 |
15153564
|
As expected, phosphatidylinositol 3 kinase activity (PI3K) was suppressed in muscle; in addition to decreased insulin, the mechanism includes IRS-1 phosphorylation at serine-307.
|
382 |
15153564
|
Caspase-3 activity was also increased, and the authors linked it to a low PI3K-induced activation of the apoptotic system that includes a conformational change in Bax and release of cytochrome C.
|
383 |
15153564
|
Atrogin-1/MAFbx expression increased when the authors suppressed PI3K activity in muscle cells.
|
384 |
15153564
|
The forkhead transcriptional factor, a downstream substrate of PI3K, stimulated atrogin-1/MAFbx promoter transcriptional activity markedly.
|
385 |
15225809
|
Expression of calbindin-D(28k) in neural cell suppressed the proapoptotic actions of presenilin-1, which is causally linked to familial Alzheimer's disease, by preventing calcium mediated mitochondrial damage and the subsequent release of cytochrome c.
|
386 |
15225809
|
Calbindin, by buffering intracellular calcium can also protect HEK 293 kidney cells from parathyroid hormone induced apoptosis that was found to be mediated by a phospholipase C dependent increase in intracellular calcium.
|
387 |
15225809
|
Our findings suggest that calbindin is capable of directly inhibiting the activity of caspase-3, a common downstream effector of multiple apoptotic signaling pathways, and that this inhibition results in an inhibition of tumor necrosis factor (TNFalpha) and glucocorticoid induced apoptosis in bone cells.
|
388 |
15242807
|
The present study demonstrates that metformin (0.5-2mM) also dose-dependently activates AMPK in insulin-producing MIN6 cells and in primary rat beta-cells, leading to increased phosphorylation of acetyl coA carboxylase (ACC).
|
389 |
15242807
|
As with AICAR, metformin activated c-Jun-N-terminal kinase (JNK) and caspase-3 prior to the appearance of apoptosis.
|
390 |
15246841
|
Caspase-3 activation was evident in the nuclear fraction of the cortex of diabetic rats after 3 days recovery and it was preceded by activation of caspase-9, but not activation of caspase-8.
|
391 |
15246841
|
These results suggest that a brief period of global ischemia in diabetic animals activates a neuronal cell death pathway involving cytochrome c release, caspase-9 activation, and caspase-3 cleavage, all of which are most likely initiated by early mitochondria damage.
|
392 |
15246841
|
Caspase-3 activation was evident in the nuclear fraction of the cortex of diabetic rats after 3 days recovery and it was preceded by activation of caspase-9, but not activation of caspase-8.
|
393 |
15246841
|
These results suggest that a brief period of global ischemia in diabetic animals activates a neuronal cell death pathway involving cytochrome c release, caspase-9 activation, and caspase-3 cleavage, all of which are most likely initiated by early mitochondria damage.
|
394 |
15298963
|
Furthermore, diosgenin induced apoptosis in HT-29 cells at least in part by inhibition of bcl-2 and by induction of caspase-3 protein expression.
|
395 |
15308612
|
Insulin content was decreased in Hfe(-/-) mice by 35%/pancreas and 25%/islet.
|
396 |
15308612
|
By 6-8 months, islets from Hfe(-/-) mice were 45% smaller, associated with increased staining for activated caspase 3 and terminal deoxynucleotidyl transferase-mediated deoxy-UTP nick end labeling.
|
397 |
15308612
|
Islets from Hfe(-/-) mice were also desensitized to glucose, with half-maximal stimulation of insulin secretion seen at 16.7 +/- 0.9 mm glucose in perifused islets from Hfe(-/-) mice compared with 13.1 +/- 0.6 mm glucose in wild-type animals.
|
398 |
15308612
|
Fasting serum insulin levels were comparable between Hfe(-/-) and Hfe(+/+) mice, but were 48% lower in the Hfe(-/-) mice 30 min after challenge.
|
399 |
15308612
|
Hfe(-/-)mice on the C57BL6 background exhibited decreased glucose tolerance at 10-12 months due to an inability to increase insulin levels as they aged.
|
400 |
15362503
|
Hyperglycaemia also induces apoptosis by p53 and the activation of the cytochrome c-activated caspase-3 pathway.
|
401 |
15362503
|
Stimulation of connective tissue growth factor and the formation of advanced glycation end products in extracellular matrix proteins induces collagen cross-linking and contribute to the fibrosis observed in the interstitium of the heart of diabetic subjects.
|
402 |
15362503
|
Beta-adrenoreceptor antagonists, ACE inhibitors, endothelin-receptor antagonist (Bonestan), adrenomedullin, hormones (insulin, IGF-1) and antioxidants (magniferin, metallothionein, vitamins C and E) reduce interstitial fibrosis and improve cardiac function in diabetic cardiomyopathy.
|
403 |
15531378
|
Since ischemia can be related to not only necrosis but apoptosis as well, we compared the development of apoptosis in STZ-diabetic rats and STZ-diabetic rats subjected to occlusion of the middle cerebral artery (MCA). 24-48 hr following MCA occlusion the animals were killed, the brain removed and prepared for evaluation by several indexes of apoptosis: nucleosomal DNA fragmentation, TUNEL staining, activation of caspase-3 and alteration in the expression of Bax and Bcl2.
|
404 |
15531508
|
Diabetic islets were characterized by reduced insulin content, decreased amount of mature insulin granules, impaired glucose-induced insulin secretion, reduced insulin mRNA expression, and increased apoptosis with enhanced caspase-3 and -8 activity.
|
405 |
15531508
|
These alterations were associated with increased oxidative stress, as shown by higher nitrotyrosine concentrations, increased expression of protein kinase C-beta2 and nicotinamide adenine dinucleotide phosphate reduced-oxidase, and changes in mRNA expression of manganese- superoxide dismutase, Cu/Zn-superoxide dismutase, catalase, and glutathione peroxidase.
|
406 |
15555051
|
After this treatment, cell proliferation, activation of mitogen-activated protein kinase (MAPK), the level of apoptosis, and caspase-3 activation induced by removal of growth factors or tumor necrosis factor-alpha treatment were studied.
|
407 |
15555051
|
On the other hand, MCI-186 did not alter the level of apoptosis and caspase-3 activation induced by TNF-alpha treatment.
|
408 |
15555051
|
After this treatment, cell proliferation, activation of mitogen-activated protein kinase (MAPK), the level of apoptosis, and caspase-3 activation induced by removal of growth factors or tumor necrosis factor-alpha treatment were studied.
|
409 |
15555051
|
On the other hand, MCI-186 did not alter the level of apoptosis and caspase-3 activation induced by TNF-alpha treatment.
|
410 |
15563957
|
To investigate a possible mechanism of Epo's action on apoptosis, phosphorylation of Akt was examined by applying Epo.
|
411 |
15563957
|
Caspase-3 activity was also increased (1.4-fold) by incubation with high glucose, and the activation of caspase-3 was normalized to the control level by co-incubation with Epo.
|
412 |
15563957
|
Epo was shown to phosphorylate Akt, leading to the inhibition of caspase-3 activation and apoptosis induced by high glucose.
|
413 |
15563957
|
To investigate a possible mechanism of Epo's action on apoptosis, phosphorylation of Akt was examined by applying Epo.
|
414 |
15563957
|
Caspase-3 activity was also increased (1.4-fold) by incubation with high glucose, and the activation of caspase-3 was normalized to the control level by co-incubation with Epo.
|
415 |
15563957
|
Epo was shown to phosphorylate Akt, leading to the inhibition of caspase-3 activation and apoptosis induced by high glucose.
|
416 |
15565861
|
Cells were transduced using a Maloney murine leukemia virus (MLV) vector coding for yellow fluorescent protein (YFP) and for one of the following antiapoptotic genes: cFLIP, FADD-DN, BcL-2, PI-9, and ICAM-2.
|
417 |
15565861
|
The data demonstrate that cFLIP, FADD-DN, and PI-9 are significantly more effective in protecting NIT-1 cells than BcL-2 and ICAM-2.
|
418 |
15565861
|
Additionally, the data show that despite its weak in vitro inhibition of caspase-3, PI-9 affords significant protection against TNF-alpha-induced apoptosis in these cells.
|
419 |
15571924
|
Cytokines activate caspase-3 in insulinoma cells of diabetes-prone NOD mice directly and via upregulation of Fas.
|
420 |
15571924
|
Cytokines released from islet-infiltrating mononuclear cells are known to be cytotoxic both directly and by upregulating Fas for FasL-induced apoptosis.
|
421 |
15571924
|
To investigate the role of caspase-3, a major effector of apoptosis in beta-cell death, we asked whether cytokine- and/or FasL-induced apoptosis was associated with increased activity of caspase-3 in NIT-1 insulinoma cells and islets of autoimmune diabetes-prone NOD mice.
|
422 |
15571924
|
For cytokine-induced apoptosis, NIT-1 cells or islets were exposed to IL-1 beta and IFN-gamma for 24 h.
|
423 |
15571924
|
Addition of FasL for a further 3 h increased caspase-3-like activity an additional 1.8-fold in cytokine-treated NIT-1 cells.
|
424 |
15571924
|
In summary, exposure of NOD mouse insulinoma cells or islets to IL-1 beta and IFN-gamma for 24 h induced caspase-3-like activity that, in the case of insulinoma cells at least, can be further enhanced by interaction of cytokine-induced Fas receptor with FasL.
|
425 |
15571924
|
Cytokines activate caspase-3 in insulinoma cells of diabetes-prone NOD mice directly and via upregulation of Fas.
|
426 |
15571924
|
Cytokines released from islet-infiltrating mononuclear cells are known to be cytotoxic both directly and by upregulating Fas for FasL-induced apoptosis.
|
427 |
15571924
|
To investigate the role of caspase-3, a major effector of apoptosis in beta-cell death, we asked whether cytokine- and/or FasL-induced apoptosis was associated with increased activity of caspase-3 in NIT-1 insulinoma cells and islets of autoimmune diabetes-prone NOD mice.
|
428 |
15571924
|
For cytokine-induced apoptosis, NIT-1 cells or islets were exposed to IL-1 beta and IFN-gamma for 24 h.
|
429 |
15571924
|
Addition of FasL for a further 3 h increased caspase-3-like activity an additional 1.8-fold in cytokine-treated NIT-1 cells.
|
430 |
15571924
|
In summary, exposure of NOD mouse insulinoma cells or islets to IL-1 beta and IFN-gamma for 24 h induced caspase-3-like activity that, in the case of insulinoma cells at least, can be further enhanced by interaction of cytokine-induced Fas receptor with FasL.
|
431 |
15571924
|
Cytokines activate caspase-3 in insulinoma cells of diabetes-prone NOD mice directly and via upregulation of Fas.
|
432 |
15571924
|
Cytokines released from islet-infiltrating mononuclear cells are known to be cytotoxic both directly and by upregulating Fas for FasL-induced apoptosis.
|
433 |
15571924
|
To investigate the role of caspase-3, a major effector of apoptosis in beta-cell death, we asked whether cytokine- and/or FasL-induced apoptosis was associated with increased activity of caspase-3 in NIT-1 insulinoma cells and islets of autoimmune diabetes-prone NOD mice.
|
434 |
15571924
|
For cytokine-induced apoptosis, NIT-1 cells or islets were exposed to IL-1 beta and IFN-gamma for 24 h.
|
435 |
15571924
|
Addition of FasL for a further 3 h increased caspase-3-like activity an additional 1.8-fold in cytokine-treated NIT-1 cells.
|
436 |
15571924
|
In summary, exposure of NOD mouse insulinoma cells or islets to IL-1 beta and IFN-gamma for 24 h induced caspase-3-like activity that, in the case of insulinoma cells at least, can be further enhanced by interaction of cytokine-induced Fas receptor with FasL.
|
437 |
15571924
|
Cytokines activate caspase-3 in insulinoma cells of diabetes-prone NOD mice directly and via upregulation of Fas.
|
438 |
15571924
|
Cytokines released from islet-infiltrating mononuclear cells are known to be cytotoxic both directly and by upregulating Fas for FasL-induced apoptosis.
|
439 |
15571924
|
To investigate the role of caspase-3, a major effector of apoptosis in beta-cell death, we asked whether cytokine- and/or FasL-induced apoptosis was associated with increased activity of caspase-3 in NIT-1 insulinoma cells and islets of autoimmune diabetes-prone NOD mice.
|
440 |
15571924
|
For cytokine-induced apoptosis, NIT-1 cells or islets were exposed to IL-1 beta and IFN-gamma for 24 h.
|
441 |
15571924
|
Addition of FasL for a further 3 h increased caspase-3-like activity an additional 1.8-fold in cytokine-treated NIT-1 cells.
|
442 |
15571924
|
In summary, exposure of NOD mouse insulinoma cells or islets to IL-1 beta and IFN-gamma for 24 h induced caspase-3-like activity that, in the case of insulinoma cells at least, can be further enhanced by interaction of cytokine-induced Fas receptor with FasL.
|
443 |
15582161
|
Expression of the axotomy-responsive genes coding for growth-associated protein 43 (GAP-43), galanin, neuropeptide Y (NPY), pre-pro-vasoactive intestinal polypeptide (pre-pro-VIP), neuronal nitric oxide synthase (nNOS), protease nexin 1, heat-shock protein 27 (HSP 27) and myosin light chain kinase II (MLCK II) was unaffected in ganglia from diabetic rats compared to controls; thus, no axotomised phenotype was established.
|
444 |
15582161
|
The expression of the majority of proapoptotic genes in the DRG was also unaltered (bax, bad, bid, bok, c-Jun, p38, TNFR1, caspase 3 and NOS2).
|
445 |
15582161
|
Similarly there was no change in expression of the majority of antiapoptotic genes (bcl2, bcl-xL, bcl-w, NfkappaB).
|
446 |
15589968
|
Nitric oxide (NO) is believed to play a key role in the process of pancreatic beta-cell destruction leading to insulin-dependent diabetes mellitus (IDDM).
|
447 |
15589968
|
Exposure of RINm5F cells to chemical NO donor such as S-nitroso-N-acetylpenicillamine (SNAP) induced apoptotic events such as the disruption of mitochondrial membrane potential (Deltapsim), cytochrome c release from mitochondria, activation of caspase-3, poly (ADP-ribose) polymerase cleavage and DNA fragmentation.
|
448 |
15589968
|
In addition, rat islets pretreated with CR extract retained the insulin-secretion capacity even after the treatment with IL-1beta.
|
449 |
15590648
|
In vivo experiments established that CML-collagen but not unmodified collagen induced fibroblast apoptosis and that apoptosis was dependent upon caspase-3, -8, and -9 activity.
|
450 |
15590648
|
AGE-induced apoptosis was largely dependent on the effector caspase, caspase-3, which was activated through both cytoplasmic (caspase-8-dependent) and mitochondrial (caspase-9) pathways.
|
451 |
15590648
|
In vivo experiments established that CML-collagen but not unmodified collagen induced fibroblast apoptosis and that apoptosis was dependent upon caspase-3, -8, and -9 activity.
|
452 |
15590648
|
AGE-induced apoptosis was largely dependent on the effector caspase, caspase-3, which was activated through both cytoplasmic (caspase-8-dependent) and mitochondrial (caspase-9) pathways.
|
453 |
15596134
|
Inactivation of Akt was associated with dephosphorylation of BAD, increased cytochrome c release, and activation of caspase-3 and caspase-9.
|
454 |
15618349
|
Exposure of mouse betaTC3 insulinoma cells to the proteasome inhibitor N-Acetyl-Leu-Leu-Nle-CHO (ALLN) reduced cell viability, activated caspase-3, induced apoptosis, and suppressed insulin release.
|
455 |
15618349
|
Treatment with ALLN also resulted in phosphorylation of c-jun N-terminal kinase (JNK) and an increase in in vitro phosphorylation of c-jun.
|
456 |
15618349
|
Another proteasome inhibitor, lactacystin, also stimulated JNK activation, caused activation of caspase-3, suppressed cell viability, and induced apoptosis in betaTC3 and rat INS-1E cells.
|
457 |
15618349
|
Both ALLN and lactacystin caused a marked decrease in the cellular amount of the JNK scaffold protein JNK-interacting protein 1/islet-brain-1.
|
458 |
15618349
|
Exposure of mouse betaTC3 insulinoma cells to the proteasome inhibitor N-Acetyl-Leu-Leu-Nle-CHO (ALLN) reduced cell viability, activated caspase-3, induced apoptosis, and suppressed insulin release.
|
459 |
15618349
|
Treatment with ALLN also resulted in phosphorylation of c-jun N-terminal kinase (JNK) and an increase in in vitro phosphorylation of c-jun.
|
460 |
15618349
|
Another proteasome inhibitor, lactacystin, also stimulated JNK activation, caused activation of caspase-3, suppressed cell viability, and induced apoptosis in betaTC3 and rat INS-1E cells.
|
461 |
15618349
|
Both ALLN and lactacystin caused a marked decrease in the cellular amount of the JNK scaffold protein JNK-interacting protein 1/islet-brain-1.
|
462 |
15649569
|
Immunohistochemical studies revealed that, in mirror sections, the staining of Bax and activated caspase-3 were observed in the TUNEL-positive cell area, but the expression of Bcl-2 in these apoptotic cells was generally too low to be detected.
|
463 |
15649569
|
These results suggest that a Bax-regulated mitochondrial cytochrome c-mediated caspase-3 activation pathway might be involved in the diabetic embryopathy.
|
464 |
15649569
|
Immunohistochemical studies revealed that, in mirror sections, the staining of Bax and activated caspase-3 were observed in the TUNEL-positive cell area, but the expression of Bcl-2 in these apoptotic cells was generally too low to be detected.
|
465 |
15649569
|
These results suggest that a Bax-regulated mitochondrial cytochrome c-mediated caspase-3 activation pathway might be involved in the diabetic embryopathy.
|
466 |
15660203
|
Re-institution of good metabolic control in diabetic rats and activation of caspase-3 and nuclear transcriptional factor (NF-kappaB) in the retina.
|
467 |
15660203
|
We examined the effect of re-institution of good metabolic control (GC) on the activation of retinal apoptosis executor enzyme, caspase-3, and nuclear transcriptional factor NF-kB.
|
468 |
15660203
|
Re-institution of GC after two months of PC partially normalized the hyperglycemia-induced activation of caspase-3 (to 140% of normal values) while re-institution of GC after six months of PC had no significant effect on the activation of caspase-3 NF-kB activity was 2.5-fold higher in diabetic rats kept in PC than in normal rats.
|
469 |
15660203
|
Initiation of GC soon after induction of diabetes in rats prevented activation of retinal caspase-3 and NF-kB.
|
470 |
15660203
|
Re-institution of good metabolic control in diabetic rats and activation of caspase-3 and nuclear transcriptional factor (NF-kappaB) in the retina.
|
471 |
15660203
|
We examined the effect of re-institution of good metabolic control (GC) on the activation of retinal apoptosis executor enzyme, caspase-3, and nuclear transcriptional factor NF-kB.
|
472 |
15660203
|
Re-institution of GC after two months of PC partially normalized the hyperglycemia-induced activation of caspase-3 (to 140% of normal values) while re-institution of GC after six months of PC had no significant effect on the activation of caspase-3 NF-kB activity was 2.5-fold higher in diabetic rats kept in PC than in normal rats.
|
473 |
15660203
|
Initiation of GC soon after induction of diabetes in rats prevented activation of retinal caspase-3 and NF-kB.
|
474 |
15660203
|
Re-institution of good metabolic control in diabetic rats and activation of caspase-3 and nuclear transcriptional factor (NF-kappaB) in the retina.
|
475 |
15660203
|
We examined the effect of re-institution of good metabolic control (GC) on the activation of retinal apoptosis executor enzyme, caspase-3, and nuclear transcriptional factor NF-kB.
|
476 |
15660203
|
Re-institution of GC after two months of PC partially normalized the hyperglycemia-induced activation of caspase-3 (to 140% of normal values) while re-institution of GC after six months of PC had no significant effect on the activation of caspase-3 NF-kB activity was 2.5-fold higher in diabetic rats kept in PC than in normal rats.
|
477 |
15660203
|
Initiation of GC soon after induction of diabetes in rats prevented activation of retinal caspase-3 and NF-kB.
|
478 |
15660203
|
Re-institution of good metabolic control in diabetic rats and activation of caspase-3 and nuclear transcriptional factor (NF-kappaB) in the retina.
|
479 |
15660203
|
We examined the effect of re-institution of good metabolic control (GC) on the activation of retinal apoptosis executor enzyme, caspase-3, and nuclear transcriptional factor NF-kB.
|
480 |
15660203
|
Re-institution of GC after two months of PC partially normalized the hyperglycemia-induced activation of caspase-3 (to 140% of normal values) while re-institution of GC after six months of PC had no significant effect on the activation of caspase-3 NF-kB activity was 2.5-fold higher in diabetic rats kept in PC than in normal rats.
|
481 |
15660203
|
Initiation of GC soon after induction of diabetes in rats prevented activation of retinal caspase-3 and NF-kB.
|
482 |
15689562
|
Insulin receptor substrates (Irs-proteins) integrate signals from the insulin and insulin-like growth factor-1 (IGF1) receptors with other processes to control cellular growth, function, and survival.
|
483 |
15689562
|
However, IGF1-stimulated Akt phosphorylation was barely detected, and cleaved/activated caspase-3 was significantly elevated in isolated retinas of Irs2-/- mice.
|
484 |
15705778
|
We therefore generated a stable transfected beta-cell line (INS-1) overexpressing human TXNIP and found that TXNIP overexpression induced apoptosis as assessed by Bax, Bcl2, caspase-3, and cleaved caspase-9 as well as Hoechst staining.
|
485 |
15705778
|
Interestingly, islets of insulin-resistant/diabetic mice (AZIP-F1, BTBRob/ob) demonstrated elevated TXNIP expression, suggesting that TXNIP may play a role in glucotoxicity and the beta-cell loss observed under these conditions.
|
486 |
15705778
|
Thus, TXNIP is a novel proapoptotic beta-cell gene elevated in insulin resistance/diabetes and up-regulated by glucose through a unique ChoRE and may link glucotoxicity and beta-cell apoptosis.
|
487 |
15723279
|
In the present study, we report that resveratrol, a phytoalexin present in grapes with known antioxidant and anti-inflammatory properties, attenuates high glucose-induced apoptotic changes, including c-Jun N-terminal kinase (JNK) activation and caspase-3 activation in human leukemia K562 cells.
|
488 |
15777748
|
Of various apoptotic pathways, Fas activations, 8-OHdG expression, and caspase-12 were demonstrated in type 1 diabetic BB/Wor rats only.
|
489 |
15777748
|
Expressions of Bax and active caspase-3 were significantly increased in type 1, but not in type 2, diabetic rats.
|
490 |
15800711
|
The aim of our study was to determine whether synthetic ligands of PPARalpha and PPARgamma could affect the viability, proliferation, differentiation, apoptosis and expression of some cell cycle related proteins in glial tumor cell lines.
|
491 |
15800711
|
Cell lines were treated by ligands of PPARalpha (bezafibrate, gemfibrozil) and PPARgamma (ciglitazone).
|
492 |
15800711
|
The synthetic ligands significantly reduced or induced the expression of cyclins, p27Kip1, p21Waf1/Cip1, MDM-2, Bcl-2, Bax, PARP, Caspase 3, androgen receptors, etc. and did not affect the expression of the differentiation marker GFAP.
|
493 |
15831467
|
To determine the role of caspase-3-dependent apoptosis in disease initiation, a defined antigen-T-cell receptor transgenic system, RIP-GP/P14 double-transgenic mice with Casp3 null mutation, was examined. beta-cell antigen-specific T-cell activation and proliferation were observed only in the pancreatic draining lymph node of RIP-GP/P14/Casp3(+/-) mice, but not in mice lacking caspase-3.
|
494 |
15855338
|
C-peptide replacement prevented oxidative stress-, endoplasmic reticulum-, nerve growth factor receptor p75-, and poly(ADP-ribose) polymerase-related apoptotic activities.
|
495 |
15855338
|
These findings were associated with the prevention of increased expression of Bax and active caspase 3 and the frequency of caspase 3-positive neurons.
|
496 |
15857712
|
Differential effect of p75 neurotrophin receptor on expression of pro-apoptotic proteins c-jun, p38 and caspase-3 in dorsal root ganglion cells after axotomy in experimental diabetes.
|
497 |
15857712
|
We have hypothesized that p75 neurotrophin receptor (p75(NTR))-mediated activation of the pro-apoptotic proteins c-jun, p38 and caspase-3 underlies the neuronal cell loss in dorsal root ganglia (DRG) neurons after axotomy in normal mice, and that this activation is exaggerated in experimental diabetes.
|
498 |
15857712
|
To test this hypothesized relationship, we compared the expression of pro-apoptotic proteins in fifth lumbar DRG (L5DRG) neurons of wildtype Balb/c (p75+/+) mice and p75(NTR) knockout (p75-/-) mice, assigned to either non-diabetic control groups or to diabetic (1 month) groups, all with a unilateral sciatic nerve crush produced 10 days before tissue preparation.
|
499 |
15857712
|
The absolute number of L5DRG neurons expressing immunoreactivities (IR) for phosphorylated c-jun (P-c-jun-IR), phosphorylated p-38 (P-p38-IR) and cleaved caspase-3 (caspase-3-IR) were estimated in semi-thick sections using the optical fractionator.
|
500 |
15857712
|
Nerve crush increased the numbers of P-c-jun-IR and caspase-3-IR neurons in all four groups.
|
501 |
15857712
|
On the crush side, diabetes did not exaggerate the increase of P-c-jun-IR or caspase-3-IR neurons in p75+/+ mice, whereas in p75-/- mice diabetes reduced the increase of P-c-jun-IR neurons.
|
502 |
15857712
|
This study demonstrates that (1) diabetes of 1 month's duration does not potentiate the expression of three pro-apoptotic markers p38, caspase-3 and P-c-jun neither in intact neurons nor after nerve crush, and that (2) p75(NTR) is required for activation of the pro-apoptosis signal caspase-3 after nerve crush in both diabetic and non-diabetic mice.
|
503 |
15857712
|
Differential effect of p75 neurotrophin receptor on expression of pro-apoptotic proteins c-jun, p38 and caspase-3 in dorsal root ganglion cells after axotomy in experimental diabetes.
|
504 |
15857712
|
We have hypothesized that p75 neurotrophin receptor (p75(NTR))-mediated activation of the pro-apoptotic proteins c-jun, p38 and caspase-3 underlies the neuronal cell loss in dorsal root ganglia (DRG) neurons after axotomy in normal mice, and that this activation is exaggerated in experimental diabetes.
|
505 |
15857712
|
To test this hypothesized relationship, we compared the expression of pro-apoptotic proteins in fifth lumbar DRG (L5DRG) neurons of wildtype Balb/c (p75+/+) mice and p75(NTR) knockout (p75-/-) mice, assigned to either non-diabetic control groups or to diabetic (1 month) groups, all with a unilateral sciatic nerve crush produced 10 days before tissue preparation.
|
506 |
15857712
|
The absolute number of L5DRG neurons expressing immunoreactivities (IR) for phosphorylated c-jun (P-c-jun-IR), phosphorylated p-38 (P-p38-IR) and cleaved caspase-3 (caspase-3-IR) were estimated in semi-thick sections using the optical fractionator.
|
507 |
15857712
|
Nerve crush increased the numbers of P-c-jun-IR and caspase-3-IR neurons in all four groups.
|
508 |
15857712
|
On the crush side, diabetes did not exaggerate the increase of P-c-jun-IR or caspase-3-IR neurons in p75+/+ mice, whereas in p75-/- mice diabetes reduced the increase of P-c-jun-IR neurons.
|
509 |
15857712
|
This study demonstrates that (1) diabetes of 1 month's duration does not potentiate the expression of three pro-apoptotic markers p38, caspase-3 and P-c-jun neither in intact neurons nor after nerve crush, and that (2) p75(NTR) is required for activation of the pro-apoptosis signal caspase-3 after nerve crush in both diabetic and non-diabetic mice.
|
510 |
15857712
|
Differential effect of p75 neurotrophin receptor on expression of pro-apoptotic proteins c-jun, p38 and caspase-3 in dorsal root ganglion cells after axotomy in experimental diabetes.
|
511 |
15857712
|
We have hypothesized that p75 neurotrophin receptor (p75(NTR))-mediated activation of the pro-apoptotic proteins c-jun, p38 and caspase-3 underlies the neuronal cell loss in dorsal root ganglia (DRG) neurons after axotomy in normal mice, and that this activation is exaggerated in experimental diabetes.
|
512 |
15857712
|
To test this hypothesized relationship, we compared the expression of pro-apoptotic proteins in fifth lumbar DRG (L5DRG) neurons of wildtype Balb/c (p75+/+) mice and p75(NTR) knockout (p75-/-) mice, assigned to either non-diabetic control groups or to diabetic (1 month) groups, all with a unilateral sciatic nerve crush produced 10 days before tissue preparation.
|
513 |
15857712
|
The absolute number of L5DRG neurons expressing immunoreactivities (IR) for phosphorylated c-jun (P-c-jun-IR), phosphorylated p-38 (P-p38-IR) and cleaved caspase-3 (caspase-3-IR) were estimated in semi-thick sections using the optical fractionator.
|
514 |
15857712
|
Nerve crush increased the numbers of P-c-jun-IR and caspase-3-IR neurons in all four groups.
|
515 |
15857712
|
On the crush side, diabetes did not exaggerate the increase of P-c-jun-IR or caspase-3-IR neurons in p75+/+ mice, whereas in p75-/- mice diabetes reduced the increase of P-c-jun-IR neurons.
|
516 |
15857712
|
This study demonstrates that (1) diabetes of 1 month's duration does not potentiate the expression of three pro-apoptotic markers p38, caspase-3 and P-c-jun neither in intact neurons nor after nerve crush, and that (2) p75(NTR) is required for activation of the pro-apoptosis signal caspase-3 after nerve crush in both diabetic and non-diabetic mice.
|
517 |
15857712
|
Differential effect of p75 neurotrophin receptor on expression of pro-apoptotic proteins c-jun, p38 and caspase-3 in dorsal root ganglion cells after axotomy in experimental diabetes.
|
518 |
15857712
|
We have hypothesized that p75 neurotrophin receptor (p75(NTR))-mediated activation of the pro-apoptotic proteins c-jun, p38 and caspase-3 underlies the neuronal cell loss in dorsal root ganglia (DRG) neurons after axotomy in normal mice, and that this activation is exaggerated in experimental diabetes.
|
519 |
15857712
|
To test this hypothesized relationship, we compared the expression of pro-apoptotic proteins in fifth lumbar DRG (L5DRG) neurons of wildtype Balb/c (p75+/+) mice and p75(NTR) knockout (p75-/-) mice, assigned to either non-diabetic control groups or to diabetic (1 month) groups, all with a unilateral sciatic nerve crush produced 10 days before tissue preparation.
|
520 |
15857712
|
The absolute number of L5DRG neurons expressing immunoreactivities (IR) for phosphorylated c-jun (P-c-jun-IR), phosphorylated p-38 (P-p38-IR) and cleaved caspase-3 (caspase-3-IR) were estimated in semi-thick sections using the optical fractionator.
|
521 |
15857712
|
Nerve crush increased the numbers of P-c-jun-IR and caspase-3-IR neurons in all four groups.
|
522 |
15857712
|
On the crush side, diabetes did not exaggerate the increase of P-c-jun-IR or caspase-3-IR neurons in p75+/+ mice, whereas in p75-/- mice diabetes reduced the increase of P-c-jun-IR neurons.
|
523 |
15857712
|
This study demonstrates that (1) diabetes of 1 month's duration does not potentiate the expression of three pro-apoptotic markers p38, caspase-3 and P-c-jun neither in intact neurons nor after nerve crush, and that (2) p75(NTR) is required for activation of the pro-apoptosis signal caspase-3 after nerve crush in both diabetic and non-diabetic mice.
|
524 |
15857712
|
Differential effect of p75 neurotrophin receptor on expression of pro-apoptotic proteins c-jun, p38 and caspase-3 in dorsal root ganglion cells after axotomy in experimental diabetes.
|
525 |
15857712
|
We have hypothesized that p75 neurotrophin receptor (p75(NTR))-mediated activation of the pro-apoptotic proteins c-jun, p38 and caspase-3 underlies the neuronal cell loss in dorsal root ganglia (DRG) neurons after axotomy in normal mice, and that this activation is exaggerated in experimental diabetes.
|
526 |
15857712
|
To test this hypothesized relationship, we compared the expression of pro-apoptotic proteins in fifth lumbar DRG (L5DRG) neurons of wildtype Balb/c (p75+/+) mice and p75(NTR) knockout (p75-/-) mice, assigned to either non-diabetic control groups or to diabetic (1 month) groups, all with a unilateral sciatic nerve crush produced 10 days before tissue preparation.
|
527 |
15857712
|
The absolute number of L5DRG neurons expressing immunoreactivities (IR) for phosphorylated c-jun (P-c-jun-IR), phosphorylated p-38 (P-p38-IR) and cleaved caspase-3 (caspase-3-IR) were estimated in semi-thick sections using the optical fractionator.
|
528 |
15857712
|
Nerve crush increased the numbers of P-c-jun-IR and caspase-3-IR neurons in all four groups.
|
529 |
15857712
|
On the crush side, diabetes did not exaggerate the increase of P-c-jun-IR or caspase-3-IR neurons in p75+/+ mice, whereas in p75-/- mice diabetes reduced the increase of P-c-jun-IR neurons.
|
530 |
15857712
|
This study demonstrates that (1) diabetes of 1 month's duration does not potentiate the expression of three pro-apoptotic markers p38, caspase-3 and P-c-jun neither in intact neurons nor after nerve crush, and that (2) p75(NTR) is required for activation of the pro-apoptosis signal caspase-3 after nerve crush in both diabetic and non-diabetic mice.
|
531 |
15857712
|
Differential effect of p75 neurotrophin receptor on expression of pro-apoptotic proteins c-jun, p38 and caspase-3 in dorsal root ganglion cells after axotomy in experimental diabetes.
|
532 |
15857712
|
We have hypothesized that p75 neurotrophin receptor (p75(NTR))-mediated activation of the pro-apoptotic proteins c-jun, p38 and caspase-3 underlies the neuronal cell loss in dorsal root ganglia (DRG) neurons after axotomy in normal mice, and that this activation is exaggerated in experimental diabetes.
|
533 |
15857712
|
To test this hypothesized relationship, we compared the expression of pro-apoptotic proteins in fifth lumbar DRG (L5DRG) neurons of wildtype Balb/c (p75+/+) mice and p75(NTR) knockout (p75-/-) mice, assigned to either non-diabetic control groups or to diabetic (1 month) groups, all with a unilateral sciatic nerve crush produced 10 days before tissue preparation.
|
534 |
15857712
|
The absolute number of L5DRG neurons expressing immunoreactivities (IR) for phosphorylated c-jun (P-c-jun-IR), phosphorylated p-38 (P-p38-IR) and cleaved caspase-3 (caspase-3-IR) were estimated in semi-thick sections using the optical fractionator.
|
535 |
15857712
|
Nerve crush increased the numbers of P-c-jun-IR and caspase-3-IR neurons in all four groups.
|
536 |
15857712
|
On the crush side, diabetes did not exaggerate the increase of P-c-jun-IR or caspase-3-IR neurons in p75+/+ mice, whereas in p75-/- mice diabetes reduced the increase of P-c-jun-IR neurons.
|
537 |
15857712
|
This study demonstrates that (1) diabetes of 1 month's duration does not potentiate the expression of three pro-apoptotic markers p38, caspase-3 and P-c-jun neither in intact neurons nor after nerve crush, and that (2) p75(NTR) is required for activation of the pro-apoptosis signal caspase-3 after nerve crush in both diabetic and non-diabetic mice.
|
538 |
15887245
|
Curcumin inhibited the MG-induced DNA fragmentation, caspase-3 activation, cleavage of PARP, mitochondrial cytochrome c release, and JNK activation.
|
539 |
15895395
|
Poly(ADP-ribose)polymerase (PARP-1), a nuclear enzyme activated by DNA strand breaks, is involved in DNA repair, aging, inflammation, and neoplastic transformation.
|
540 |
15895395
|
In diabetes, reactive oxygen and nitrogen species occurring in response to hyperglycemia cause DNA damages and PARP-1 activation.
|
541 |
15895395
|
Because circulating mononuclear cells (MNCs) are involved in inflammation mechanisms, these cells were chosen as the experimental model to evaluate PARP-1 levels and activity in patients with type 2 diabetes.
|
542 |
15895395
|
PARP-1 expression and activity were analyzed by semi-quantitative PCR, Western and activity blot, and immunofluorescence microscopy.
|
543 |
15895395
|
PARP-1-mRNA expression was increased in MNCs from all diabetic patients versus controls (P < 0.01), whereas PARP-1 content and activity were significantly lower in diabetic patients (P < 0.0001).
|
544 |
15895395
|
To verify whether low PARP-1 levels and activity were due to a proteolytic effect of caspase-3 like, the latter activation was measured by a fluorimetric assay.
|
545 |
15895395
|
The different PARP-1 behavior in MNCs from patients with type 2 diabetes could therefore be responsible for the abnormal inflammation and infection responses in diabetes.
|
546 |
15896716
|
beta-cells die by apoptosis in type 1 diabetes as a result of autoimmune attack mediated by cytokines, and in type 2 diabetes by various perpetrators including human islet amyloid polypeptide (hIAPP).
|
547 |
15896716
|
Both proliferating and growth-arrested cells expressing p35 manifested increased resistance to cytokines and hIAPP, compared with control cells, as judged by cell viability, DNA fragmentation, and caspase-3 activity assays. p35 was significantly more protective in growth-arrested, compared with proliferating, cells.
|
548 |
15896716
|
No significant differences were observed in proliferation and insulin content between cells expressing p35 and control cells.
|
549 |
15896716
|
In contrast, p35 manifested a perturbing effect on glucose-induced insulin secretion.
|
550 |
15919807
|
NAD(P)H oxidase appeared to be involved in these responses, since overexpression of dominant-negative subunits of NAD(P)H oxidase, such as phox47(DN), diminished oxidant stress, and phox67(DN) and N-17 RAC1(DN) prevented the increase in caspase-3 activity.
|
551 |
15919807
|
Likewise, overexpression of vRAC, a constitutively active RAC1, increased caspase-3 activity to the same extent as palmitate alone.
|
552 |
15919807
|
Furthermore, inhibition of NF-kappaB activation by various means inhibited caspase-3 activation.
|
553 |
15919807
|
NAD(P)H oxidase appeared to be involved in these responses, since overexpression of dominant-negative subunits of NAD(P)H oxidase, such as phox47(DN), diminished oxidant stress, and phox67(DN) and N-17 RAC1(DN) prevented the increase in caspase-3 activity.
|
554 |
15919807
|
Likewise, overexpression of vRAC, a constitutively active RAC1, increased caspase-3 activity to the same extent as palmitate alone.
|
555 |
15919807
|
Furthermore, inhibition of NF-kappaB activation by various means inhibited caspase-3 activation.
|
556 |
15919807
|
NAD(P)H oxidase appeared to be involved in these responses, since overexpression of dominant-negative subunits of NAD(P)H oxidase, such as phox47(DN), diminished oxidant stress, and phox67(DN) and N-17 RAC1(DN) prevented the increase in caspase-3 activity.
|
557 |
15919807
|
Likewise, overexpression of vRAC, a constitutively active RAC1, increased caspase-3 activity to the same extent as palmitate alone.
|
558 |
15919807
|
Furthermore, inhibition of NF-kappaB activation by various means inhibited caspase-3 activation.
|
559 |
15965083
|
We report that curcumin prevented MG-induced cell death and apoptotic biochemical changes such as mitochondrial release of cytochrome c, caspase-3 activation, and cleavage of PARP (poly [ADP-ribose] polymerase).
|
560 |
15993382
|
In parallel, exposure to high glucose level induced caspase-3 activation and erythropoietin also prevented it.
|
561 |
15993382
|
Erythropoietin stimulated Akt phosphorylation in a dose-dependent manner (1-100 U/ml).
|
562 |
15993382
|
PI3 kinase inhibitor, wortmannin or LY294002 eliminated erythropoietin's inhibitory effect on caspase-3 activity.
|
563 |
15993382
|
In conclusion, erythropoietin may attenuate high glucose-induced endothelial cell apoptosis via PI-3 kinase pathway.
|
564 |
15993382
|
In parallel, exposure to high glucose level induced caspase-3 activation and erythropoietin also prevented it.
|
565 |
15993382
|
Erythropoietin stimulated Akt phosphorylation in a dose-dependent manner (1-100 U/ml).
|
566 |
15993382
|
PI3 kinase inhibitor, wortmannin or LY294002 eliminated erythropoietin's inhibitory effect on caspase-3 activity.
|
567 |
15993382
|
In conclusion, erythropoietin may attenuate high glucose-induced endothelial cell apoptosis via PI-3 kinase pathway.
|
568 |
16010439
|
Increased anticancer activity of the thymidylate synthase inhibitor BGC9331 combined with the topoisomerase I inhibitor SN-38 in human colorectal and breast cancer cells: induction of apoptosis and ROCK cleavage through caspase-3-dependent and -independent mechanisms.
|
569 |
16010439
|
Both drugs also augmented the proteolytic cleavage of the Rho-kinase ROCK-1 that was attenuated by the caspase-3 pathway inhibitor z-DEVD-fmk.
|
570 |
16010439
|
Increased anticancer activity of the thymidylate synthase inhibitor BGC9331 combined with the topoisomerase I inhibitor SN-38 in human colorectal and breast cancer cells: induction of apoptosis and ROCK cleavage through caspase-3-dependent and -independent mechanisms.
|
571 |
16010439
|
Both drugs also augmented the proteolytic cleavage of the Rho-kinase ROCK-1 that was attenuated by the caspase-3 pathway inhibitor z-DEVD-fmk.
|
572 |
16021636
|
T3 inhibited the apoptotic process induced by streptozocin, S-Nitroso-N-Acetylpenicylamine (SNAP), and H2O2 via regulation of the pro- and anti-apoptotic factors Bcl-2, Bcl-XL, Bad, Bax, and Caspase 3.
|
573 |
16038884
|
The sensory motor cortex (layer-5 and -6) and the CA1 and CA3 sectors of the hippocampus were analyzed following MCAO.
|
574 |
16038884
|
We observed that both insulinopenic and insulin-resistant diabetic rats have increased basal level of apoptosis that is uniformly and bilaterally distributed as indicated by both caspase-3 activity and TUNEL staining.
|
575 |
16038884
|
Reperfusion after a 2 h MCAO compared to 24 h MCAO was associated with a decrease in TUNEL staining and caspase-3 activity in the control animal but exacerbated apoptosis, especially in the hippocampus of insulin-resistant diabetic rats.
|
576 |
16038884
|
The sensory motor cortex (layer-5 and -6) and the CA1 and CA3 sectors of the hippocampus were analyzed following MCAO.
|
577 |
16038884
|
We observed that both insulinopenic and insulin-resistant diabetic rats have increased basal level of apoptosis that is uniformly and bilaterally distributed as indicated by both caspase-3 activity and TUNEL staining.
|
578 |
16038884
|
Reperfusion after a 2 h MCAO compared to 24 h MCAO was associated with a decrease in TUNEL staining and caspase-3 activity in the control animal but exacerbated apoptosis, especially in the hippocampus of insulin-resistant diabetic rats.
|
579 |
16046410
|
Expression of an uncleavable N-terminal RasGAP fragment in insulin-secreting cells increases their resistance toward apoptotic stimuli without affecting their glucose-induced insulin secretion.
|
580 |
16046410
|
RasGAP, a regulator of Ras and Rho GTPases, is an atypical caspase substrate, since it inhibits, rather than favors, apoptosis when it is partially cleaved by caspase-3 at position 455.
|
581 |
16046410
|
The antiapoptotic signal generated by the partial processing of RasGAP is mediated by the N-terminal fragment (fragment N) in a Ras-phosphatidylinositol 3-kinase-Akt-dependent, but NF-kappaB-independent, manner.
|
582 |
16046410
|
Here we demonstrate that an uncleavable form of fragment N activates Akt, represses NF-kappaB activity, and protects the conditionally immortalized pancreatic insulinoma betaTC-tet cell line against various insults, including exposure to genotoxins, trophic support withdrawal, and incubation with inflammatory cytokines.
|
583 |
16123348
|
Here, using MIN6N8 cells, a mouse pancreatic beta-cell line, we show that chronic exposure to high glucose increases cell death mediated by Bax oligomerization, cytochrome C release, and caspase-3 activation.
|
584 |
16123348
|
During apoptosis, glucokinase (GCK) expression decreases in high-glucose-treated cells, concomitant with a decrease in cellular ATP production and insulin secretion.
|
585 |
16123348
|
Moreover, exposure to a chronically high dose of glucose decreases interactions between GCK and mitochondria with an increase in Bax binding to mitochondria and cytochrome C release.
|
586 |
16227630
|
From the list of 24 proteins differentially expressed between strains we identified two highly significant and interconnected networks centered around oncogenes (Myc and Mycn) and apoptosis-related genes (Bcl2 and Casp3).
|
587 |
16227630
|
They contained many of the same genes found in the proteome networks (including Myc and Mycn).
|
588 |
16243419
|
We investigated the apoptotic effects of polyphenols from red wine on human colon cancer cells SNU-C4 using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, 4,6-diamidino-2-phenylindole (DAPI) staining, terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, reverse transcription-polymerase chain reaction (RT-PCR) expressions of Bcl-2, Bax and Caspase-3 genes, and Caspase-3 enzyme activity.
|
589 |
16243419
|
Compared with untreated control group, polyphenols (100 microg/ml) reduced the expression of Bcl-2 whereas those of Bax and Caspase-3 were increased.
|
590 |
16243419
|
We investigated the apoptotic effects of polyphenols from red wine on human colon cancer cells SNU-C4 using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, 4,6-diamidino-2-phenylindole (DAPI) staining, terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, reverse transcription-polymerase chain reaction (RT-PCR) expressions of Bcl-2, Bax and Caspase-3 genes, and Caspase-3 enzyme activity.
|
591 |
16243419
|
Compared with untreated control group, polyphenols (100 microg/ml) reduced the expression of Bcl-2 whereas those of Bax and Caspase-3 were increased.
|
592 |
16249457
|
Active caspase-3 and Bax expressions were increased, whereas antiapoptotic Bcl-xl and heat shock protein (HSP) 27 expressions in DRGs were increased.
|
593 |
16249457
|
Nerve growth factor (NGF) contents in sciatic nerves and the expression of NGF receptor TrkA in DRGs were decreased.
|
594 |
16249457
|
Immunohistochemistry showed increased numbers of active caspase-3-, HSP70-, and HSP27-positive neurons.
|
595 |
16249457
|
Active caspase-3 and Bax expressions were increased, whereas antiapoptotic Bcl-xl and heat shock protein (HSP) 27 expressions in DRGs were increased.
|
596 |
16249457
|
Nerve growth factor (NGF) contents in sciatic nerves and the expression of NGF receptor TrkA in DRGs were decreased.
|
597 |
16249457
|
Immunohistochemistry showed increased numbers of active caspase-3-, HSP70-, and HSP27-positive neurons.
|
598 |
16254033
|
Donor treatment with bilirubin up-regulated mRNA expression of protective genes such as HO-1 and bcl-2 and suppressed proinflammatory and proapoptotic genes including monocyte chemoattractant protein-1 and caspase-3 and -8 in the islet grafts before transplantation.
|
599 |
16254033
|
Furthermore, treatment of only the donor suppressed the expression of proinflammatory cytokines including TNF-alpha, inducible nitric oxide synthase, monocyte chemoattractant protein-1, and other proapoptotic and proinflammatory genes normally seen in the islets after transplantation.
|
600 |
16265596
|
This was associated by a decrease of the antiapoptotic protein Bcl-2, an increase of the pro-apoptotic protein Bax, and activation of caspase 3.
|
601 |
16306272
|
Sulfonylurea receptor 1 (SUR1) is the regulatory subunit of the pancreatic ATP-sensitive K+ channel (K(ATP) channel), which is essential for triggering insulin secretion via membrane depolarization.
|
602 |
16306272
|
To investigate the role of SUR in apoptosis induction, we tested the effect of glibenclamide on recombinant human embryonic kidney 293 cells expressing either SUR1, the smooth muscular isoform SUR2B, or the mutant SUR1(M1289T) at which a single amino acid in transmembrane helix 17 (TM17) was exchanged by the corresponding amino acid of SUR2.
|
603 |
16306272
|
By analyzing cell detachment, nuclear condensation, DNA fragmentation, and caspase-3-like activity, we observed a SUR1-specific enhancement of glibenclamide-induced apoptosis that was not seen in SUR2B, SUR1(M1289T), or control cells.
|
604 |
16306272
|
This effect does not require the presence of functional Kir6.2-containing K(ATP) channels, which points to additional, so far unknown functions of SUR.
|
605 |
16306347
|
In the insulitis lesion in type 1 diabetes, invading immune cells produce cytokines, such as IL-1beta, tumor necrosis factor (TNF)-alpha, and interferon (IFN)-gamma.
|
606 |
16306347
|
IL-1beta and/or TNF-alpha plus IFN-gamma induce beta-cell apoptosis via the activation of beta-cell gene networks under the control of the transcription factors NF-kappaB and STAT-1.
|
607 |
16306347
|
High glucose, however, does not induce or activate IL-1beta, NF-kappaB, or inducible nitric oxide synthase in rat or human beta-cells in vitro or in vivo in Psammomys obesus.
|
608 |
16306347
|
Thus, cytokines and nutrients trigger beta-cell death by fundamentally different mechanisms, namely an NF-kappaB-dependent mechanism that culminates in caspase-3 activation for cytokines and an NF-kappaB-independent mechanism for nutrients.
|
609 |
16380497
|
Increased extracellular glucose (30 mmol/l) rapidly stimulated generation of intracellular reactive oxygen species (ROS) through NADPH oxidase and mitochondrial pathways and led to activation of proapoptotic p38 mitogen-activated protein kinase and caspase 3 and to apoptosis of conditionally immortalized podocytes in vitro.
|
610 |
16411374
|
The concentration of PGE2, the gene expression of cyclooxygenases (COX-1 and COX-2) and level of apoptosis (measured by caspase-3 activity) are assessed during organogenesis in the embryos of streptozotocin-induced diabetic rats.
|
611 |
16412430
|
Fas/FasL interactions have been proposed as a potentially important mechanism mediating beta-cell death in type 1 diabetes.
|
612 |
16412430
|
Moreover, siRNA significantly inhibited Fas-mediated beta-cell apoptosis assessed by Caspase-3 and terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling assays, the extent of which positively correlated with the level of cell surface Fas.
|
613 |
16507891
|
At 21 hours, TNF-alpha inhibition significantly reduced fibroblast apoptosis and caspase-3 activity in both diabetic and normoglycemic mice (P < 0.05).
|
614 |
16530186
|
We found that GSK3beta became more active (less phosphorylated at serine 9) via decreased Akt phosphorylation, in parallel to c-Jun NH2 terminal kinase activation, which correlated with increased activated caspase 3 and myocardial apoptosis 3 days after streptozotocin (STZ) injection in mice.
|
615 |
16530186
|
However, 28 days after STZ injection, GSK3beta became inactive, which correlated with the enhanced protein kinase C beta2 and p38 mitogen activated protein kinase expression, nuclear translocation of nuclear factor of activated T cells c3, cardiac hypertrophy and fibrosis.
|
616 |
16574987
|
ER stress-related molecules PERK, eIF2alpha, ATF6, XBP-1, BiP, CHOP, and caspase-12 were analyzed.
|
617 |
16574987
|
XBP-1 splicing and CHOP expression were observed within 8 h.
|
618 |
16574987
|
After 24 h, increased activation of the ER stress-related proapoptotic molecule caspase-12 was observed along with an increase in caspase-3 activity and TdT (terminal deoxynucleotidyl transferase)-mediated dUDP nick-end labeling (TUNEL) staining in exocrine acini.
|
619 |
16624439
|
Addition of the aldose reductase inhibitor SNK-860 dose-dependently decreased the intracellular sorbitol concentration in HUVECs incubated in high glucose medium, and also significantly suppressed the increases in fragmented DNA, caspase-3 activity and 8-OHdG by conditioning with high glucose medium.
|
620 |
16632241
|
It is further known that insulin-like growth factor (IGF) levels are reduced in diabetes and that IGF-I can prevent cell death in many cell types.
|
621 |
16632241
|
Qualitative results showed that caspase-3 and BAD immunoreactivities were also elevated in diabetes and reduced in IGF-I-treated animals.
|
622 |
16644678
|
Human IMA VSMCs from diabetic patients showed resistance to apoptosis, measured as DNA fragmentation and caspase-3 activation, induced by C-reactive protein (CRP) and other stimuli, such as hydrogen peroxide and 7beta-hydroxycholesterol.
|
623 |
16644678
|
Consistent with the above, we found that pretreatment of nondiabetic VSMCs with high glucose abolished the degradation of Bcl-2 induced by CRP.
|
624 |
16644695
|
In INS-1 cells, dexamethasone increased the number of transferase-mediated dUTP nick-end labeling-staining positive cells, caspase-3 activity, and poly-(ADP-) ribose polymerase protein cleavage; decreased Bcl-2 transcript and protein abundance; dephosphorylated the proapoptotic protein of the Bcl-2 family (BAD) at serine155; and depolarized mitochondria.
|
625 |
16644695
|
In conclusion, glucocorticoid-induced apoptosis in insulin-secreting cells is accompanied by a downregulation of Bcl-2, activation of calcineurin with subsequent dephosphorylation of BAD, and mitochondrial depolarization.
|
626 |
16644697
|
In the current study, we present multiple lines of evidence supporting the conclusion that cytokine-induced killing of rat beta-cells occurs predominantly by a nonapoptotic mechanism, including the following: 1) A rat beta-cell line selected for resistance to cytokine-induced cytotoxicity (833/15) is equally sensitive to killing by the apoptosis-inducing agents camptothecin and etoposide as a cytokine-sensitive cell line (832/13). 2) Overexpression of a constitutively active form of the antiapoptotic protein kinase Akt1 in 832/13 cells provides significant protection against cell killing induced by camptothecin and etoposide but no protection against cytokine-mediated damage. 3) Small interfering RNA-mediated suppression of the proapoptotic protein Bax enhances viability of 832/13 cells upon exposure to the known apoptosis-inducing drugs but not the inflammatory cytokines. 4) Exposure of primary rat islets or 832/13 cells to the inflammatory cytokines causes cell death as evidenced by the release of adenylate kinase activity into the cell medium, with no attendant increase in caspase 3 activation or annexin V staining.
|
627 |
16674981
|
The results showed that AGE-BSA could induce significantly the apoptosis of BRPs in a dose-dependent manner compared with controls, associated with an increase in intracellular malondialdehyde level and caspase-3 activity; a decrease in intracellular catalase, SOD activities and Bcl-2/Bax ratio.
|
628 |
16674981
|
The decreased Bcl-2/Bax ratio and activation of caspase-3 are associated with apoptotic process.
|
629 |
16674981
|
The results showed that AGE-BSA could induce significantly the apoptosis of BRPs in a dose-dependent manner compared with controls, associated with an increase in intracellular malondialdehyde level and caspase-3 activity; a decrease in intracellular catalase, SOD activities and Bcl-2/Bax ratio.
|
630 |
16674981
|
The decreased Bcl-2/Bax ratio and activation of caspase-3 are associated with apoptotic process.
|
631 |
16696956
|
Peroxisome proliferator-activated receptor-gamma (PPAR-gamma) agonist, rosiglitazone, not only improves insulin resistance in patients with type II diabetes but also exerts a broad spectrum protective effects in variable animal models of neurologic or cardiovascular diseases.
|
632 |
16696956
|
Rosiglitazone treatment reduced TUNEL(+)/activated caspase-3(+) cells, MPO(+)/Ox-42(+) inflammatory cell infiltrations, caspase-3 activity, and Bax(+) cells, as compared to the ischemia-vehicle group.
|
633 |
16716905
|
H2O2 induced necrotic cell death, which shifted to apoptotic cell death when initial acidification was prevented by pH clamping to 7.4 using nigericin (unclamped cells vs clamped cells, necrosis 43.8 +/- 5.8% vs 21.1 +/- 10.6%, P < 0.05; apoptosis 8.0 +/- 1.9% vs 44.5 +/- 5.0%, P < 0.01). pH-clamped cells showed enhanced caspase 3 activity and proapoptotic Bax expression.
|
634 |
16729987
|
Two brain areas, the sensori-motor cortex (layers-5 and 6) and the CA1 and CA3 sectors (pyramidal cell layers) of the hippocampus, were analyzed for apoptosis using TUNEL and Caspase-3 immunoreactivity.
|
635 |
16741044
|
Levels of Bax and caspase-3, two important proapoptotic markers, were not significantly altered in the present study.
|
636 |
16753303
|
Colocalization of glial fibrillary acidic protein (GFAP) and cleaved caspase 3 and GFAP in TUNEL-positive cells increased in diabetic rats.
|
637 |
16753303
|
Changes in GFAP levels paralleled modifications in proliferating cell nuclear antigen (PCNA), increasing at 1 week of diabetes and decreasing thereafter, and proliferating GFAP-positive cells were decreased in the cerebellum of diabetic rats.
|
638 |
16782054
|
This reduction was observed in INS-1 cells, mouse, and human islets as well as in wild-type mice receiving Ex-4 and was accompanied by decreased expression of the apoptotic factors caspase-3 and Bax.
|
639 |
16782054
|
To determine whether Ex-4-mediated TXNIP reduction is critical for this inhibition of apoptosis, we stably overexpressed TXNIP in INS-1 cells, which completely blunted the anti-apoptotic Ex-4 effects.
|
640 |
16794003
|
The cytokines, IL-1beta and interferon-gamma, induced terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling (TUNEL) staining of rat islet cells within 48 h by about 25-30%, indicative of apoptosis and/or necrosis.
|
641 |
16794003
|
S1P and/or dihydro-S1P also antagonized cytokine-induced increases in cytochrome c release from mitochondria and caspase-3 activity in INS-1 cells, which are indicative of cell apoptosis vs. necrosis.
|
642 |
16799131
|
Furthermore, the appearance of the active proteolytic subunits of caspase-3 and caspase-9 were detected in cell lysate from THP1 cells and also increased in a dose- and time-dependent manner following pioglitazone treatment.
|
643 |
16839545
|
Latanoprost rescues retinal neuro-glial cells from apoptosis by inhibiting caspase-3, which is mediated by p44/p42 mitogen-activated protein kinase.
|
644 |
16839545
|
UO126, a mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase kinase (MEK) 1 and 2 inhibitor reversed this effect.
|
645 |
16839545
|
Retinal homogenates were probed for phospho- or total p44/p42 MAPK and Akt.
|
646 |
16839545
|
Latanoprost increased phosphorylated to total protein ratio of p44/p42 MAPK (P<0.05), but not of Akt.
|
647 |
16839545
|
Taken together, the present findings suggest that latanoprost rescues retinal neurons and/or glial cells from apoptosis, which is probably mediated by p44/p42 MAPK through caspase-3 inhibition.
|
648 |
16839545
|
Latanoprost rescues retinal neuro-glial cells from apoptosis by inhibiting caspase-3, which is mediated by p44/p42 mitogen-activated protein kinase.
|
649 |
16839545
|
UO126, a mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase kinase (MEK) 1 and 2 inhibitor reversed this effect.
|
650 |
16839545
|
Retinal homogenates were probed for phospho- or total p44/p42 MAPK and Akt.
|
651 |
16839545
|
Latanoprost increased phosphorylated to total protein ratio of p44/p42 MAPK (P<0.05), but not of Akt.
|
652 |
16839545
|
Taken together, the present findings suggest that latanoprost rescues retinal neurons and/or glial cells from apoptosis, which is probably mediated by p44/p42 MAPK through caspase-3 inhibition.
|
653 |
16869889
|
Activation of activating transcription factor 2 by p38 MAP kinase during apoptosis induced by human amylin in cultured pancreatic beta-cells.
|
654 |
16869889
|
We previously reported that fibrillogenic human amylin (hA) evokes beta-cell apoptosis through linked activation of Jun N-terminal kinase 1 (JNK 1) and a caspase cascade.
|
655 |
16869889
|
Here we show that p38 kinase [p38 mitogen-activated protein (MAP) kinase] became activated by hA treatment of cultured beta-cells whereas extracellular signal-regulated kinase (ERK) did not; by contrast, nonfibrillogenic rat amylin (rA) altered neither.
|
656 |
16869889
|
Pretreatment with the p38 kinase-inhibitor SB203580 decreased hA-induced apoptosis and caspase-3 activation by approximately 30%; as did combined SB203580 and JNK inhibitor I, by about 70%; and the combination of SB203580, the JNK inhibitor I and a caspase-8 inhibitor, by 100%.
|
657 |
16869889
|
These findings demonstrate the requirement for concurrent activation of the p38 kinase, JNK and caspase-8 pathways.
|
658 |
16869889
|
We further showed that hA elicits time-dependent activation of activating transcription factor 2 (ATF-2), which was largely suppressed by SB203580, indicating that this activation is catalyzed mainly by p38 kinase.
|
659 |
16869889
|
Furthermore, hA-induced apoptosis was suppressed by specific antisense ATF-2, and increased phospho-ATF-2 (p-ATF-2) was associated with increased CRE (cAMP-response element) DNA binding and CRE-mediated transcriptional activity, as well as enhancement of c-jun promoter activation.
|
660 |
16869889
|
These studies establish p38 MAP kinase-mediated activation of ATF-2 as a significant mechanism in hA-evoked beta-cell death, which may serve as a target for pharmaceutical intervention and effective suppression of beta-cell failure in type-2 diabetes.
|
661 |
16873684
|
cAMP-responsive element-binding protein (CREB) is required for beta-cell survival by regulating expression of crucial genes such as bcl-2 and IRS-2.
|
662 |
16873684
|
We observed that 10 mmol/l glucose-induced CREB phosphorylation was totally inhibited by the protein kinase A (PKA) inhibitor H89 (2 micromol/l) and reduced by 50% with the extracellular signal-regulated kinase (ERK)1/2 inhibitor PD98059 (20 micromol/l).
|
663 |
16873684
|
This indicates that ERK1/2, reported to be located downstream of PKA, participates in the PKA-mediated CREB phosphorylation elicited by glucose.
|
664 |
16873684
|
In ERK1/2-downregulated MIN6 cells by siRNA, glucose-stimulated CREB phosphorylation was highly reduced and CREB protein content was decreased by 60%.
|
665 |
16873684
|
In MIN6 cells and islets cultured for 24-48 h in optimal glucose concentration (10 mmol/l), which promotes survival, blockade of ERK1/2 activity with PD98059 caused a significant decrease in CREB protein level, whereas CREB mRNA remained unaffected (measured by real-time quantitative PCR).
|
666 |
16873684
|
This was associated with loss of bcl-2 mRNA and protein contents, caspase-3 activation, and emergence of ultrastructural apoptotic features detected by electron microscopy.
|
667 |
16873684
|
Our results indicate that ERK1 and -2 control the phosphorylation and protein level of CREB and play a key role in glucose-mediated pancreatic beta-cell survival.
|
668 |
16924412
|
Glucose-induced increase in apoptosis, nitric oxide (NO) levels and activation of NF-kappaB and caspase-3 were determined in these genetically manipulated cells.
|
669 |
16924412
|
Overexpression of V12 in the endothelial cells further increased their glucose-induced apoptosis by 40%, NO levels by about 50%, and activated NF-kappaB and caspase-3 by about 30-40% compared to the untransfected cells incubated in 20 mM glucose.
|
670 |
16924412
|
In contrast, overexpression of the inactive mutant, N17, inhibited glucose-mediated increases in apoptotic cell death, NO levels and NF-kappaB and caspase-3 activation; the values were significantly different (p < 0.02) compared to those obtained from the untransfected cells incubated under similar conditions.
|
671 |
16924412
|
Glucose-induced increase in apoptosis, nitric oxide (NO) levels and activation of NF-kappaB and caspase-3 were determined in these genetically manipulated cells.
|
672 |
16924412
|
Overexpression of V12 in the endothelial cells further increased their glucose-induced apoptosis by 40%, NO levels by about 50%, and activated NF-kappaB and caspase-3 by about 30-40% compared to the untransfected cells incubated in 20 mM glucose.
|
673 |
16924412
|
In contrast, overexpression of the inactive mutant, N17, inhibited glucose-mediated increases in apoptotic cell death, NO levels and NF-kappaB and caspase-3 activation; the values were significantly different (p < 0.02) compared to those obtained from the untransfected cells incubated under similar conditions.
|
674 |
16924412
|
Glucose-induced increase in apoptosis, nitric oxide (NO) levels and activation of NF-kappaB and caspase-3 were determined in these genetically manipulated cells.
|
675 |
16924412
|
Overexpression of V12 in the endothelial cells further increased their glucose-induced apoptosis by 40%, NO levels by about 50%, and activated NF-kappaB and caspase-3 by about 30-40% compared to the untransfected cells incubated in 20 mM glucose.
|
676 |
16924412
|
In contrast, overexpression of the inactive mutant, N17, inhibited glucose-mediated increases in apoptotic cell death, NO levels and NF-kappaB and caspase-3 activation; the values were significantly different (p < 0.02) compared to those obtained from the untransfected cells incubated under similar conditions.
|
677 |
16934799
|
Moreover, H(2)O(2)-induced apoptotic signals, such as c-JUN N-terminal kinase activation, cytochrome c release, caspase 3 activation, and poly (ADP-ribose) polymerase cleavage were all down-regulated by the intracellular Ca(2+) chelation.
|
678 |
16943306
|
Wnt/beta-catenin signaling modulates survival of high glucose-stressed mesangial cells.
|
679 |
16943306
|
Whereas Wnt signaling has been found to regulate renal morphogenesis and pathogenesis, the biologic role of Wnt/beta-catenin signaling in controlling high glucose-induced mesangial cell apoptosis is not well defined.
|
680 |
16943306
|
Herein is reported that Wnt/beta-catenin signaling is required for protecting glomerular mesangial cells from high glucose-mediated cell apoptosis.
|
681 |
16943306
|
High glucose downregulated Wnt4 and Wnt5a expression and the subsequent nuclear translocation of beta-catenin, whereas it increased glycogen synthase kinase-3beta (GSK-3beta) and caspase-3 activities and apoptosis of glomerular mesangial cells.
|
682 |
16943306
|
Suppression of GSK-3beta activation or increase in nuclear beta-catenin by transfection of Wnt4 or Wnt5a or stable beta-catenin (S33Y) reversed Akt activation and reduced the high glucose-mediated caspase-3 cleavage and cell apoptosis.
|
683 |
16943306
|
Pharmacologic inhibition of GSK-3beta by recombinant Wnt5a or bromoindirubin-3'-oxime or LiCl increased Akt phosphorylation and beta-catenin translocation and abrogated high glucose-mediated proapoptotic activities.
|
684 |
16943306
|
Exogenous bromoindirubin-3'-oxime treatment reduced phospho-Ser(9)-GSK-3beta and beta-catenin expression and apoptosis of cells adjacent to glomeruli in diabetic kidneys and attenuated urinary protein secretion in diabetic rats.
|
685 |
16943306
|
Sustaining Wnt/beta-catenin signaling is beneficial for promoting survival of mesangial cells that are exposed to high glucose stress.
|
686 |
16943306
|
Wnt/beta-catenin signaling modulates survival of high glucose-stressed mesangial cells.
|
687 |
16943306
|
Whereas Wnt signaling has been found to regulate renal morphogenesis and pathogenesis, the biologic role of Wnt/beta-catenin signaling in controlling high glucose-induced mesangial cell apoptosis is not well defined.
|
688 |
16943306
|
Herein is reported that Wnt/beta-catenin signaling is required for protecting glomerular mesangial cells from high glucose-mediated cell apoptosis.
|
689 |
16943306
|
High glucose downregulated Wnt4 and Wnt5a expression and the subsequent nuclear translocation of beta-catenin, whereas it increased glycogen synthase kinase-3beta (GSK-3beta) and caspase-3 activities and apoptosis of glomerular mesangial cells.
|
690 |
16943306
|
Suppression of GSK-3beta activation or increase in nuclear beta-catenin by transfection of Wnt4 or Wnt5a or stable beta-catenin (S33Y) reversed Akt activation and reduced the high glucose-mediated caspase-3 cleavage and cell apoptosis.
|
691 |
16943306
|
Pharmacologic inhibition of GSK-3beta by recombinant Wnt5a or bromoindirubin-3'-oxime or LiCl increased Akt phosphorylation and beta-catenin translocation and abrogated high glucose-mediated proapoptotic activities.
|
692 |
16943306
|
Exogenous bromoindirubin-3'-oxime treatment reduced phospho-Ser(9)-GSK-3beta and beta-catenin expression and apoptosis of cells adjacent to glomeruli in diabetic kidneys and attenuated urinary protein secretion in diabetic rats.
|
693 |
16943306
|
Sustaining Wnt/beta-catenin signaling is beneficial for promoting survival of mesangial cells that are exposed to high glucose stress.
|
694 |
16955284
|
The aims of this study were to determine effects of diabetes duration on myocardial ischemia/reperfusion (I/R) injury and test whether time-dependent differences in sensitivity of the streptozotocin diabetic rat heart to I/R are related to differences in vascular density, levels of vascular endothelial growth factor (VEGF) or endothelial nitric oxide synthase (eNOS) expression, NO formation, activation of Akt, and/or oxidative stress.
|
695 |
16955284
|
After 2 weeks of diabetes, infarct size and cleavage of caspase-3, a proapoptosis signal, were decreased as compared with normoglycemic controls or rats that had been diabetic for 6 weeks, whereas capillary density and levels of VEGF and eNOS protein and cardiac NO(x) levels were all increased.
|
696 |
16955284
|
Our results indicate endogenous cardioprotective mechanisms become transiently activated in this early stage of diabetes and that this may protect the heart from I/R injury through enhancement of VEGF and eNOS expression, NO formation, activation of cell survival signals, and decreased oxidative stress.
|
697 |
17023529
|
Furthermore, palmitate induced apoptosis, which was detected by DNA fragmentation, caspase-3 cleavage, and cytochrome c release.
|
698 |
17034987
|
We found decreased Bcl-2, increased Bax and cleaved Caspase 3 proteins in embryos from diabetic rats.
|
699 |
17064973
|
Advanced glycation end products stimulate osteoblast apoptosis via the MAP kinase and cytosolic apoptotic pathways.
|
700 |
17064973
|
CML-collagen increased p38 and JNK activity 3.2- and 4.4-fold, respectively.
|
701 |
17064973
|
Inhibition of p38 and JNK reduced CML-collagen stimulated apoptosis by 45% and 59% and by 90% when used together (P<0.05).
|
702 |
17064973
|
The predominant apoptotic pathway induced by CML-collagen involved caspase-8 activation of caspase-3 and was independent of NF-kappaB activation.
|
703 |
17081781
|
Cellular interactions promoting the in vivo expansion of CD4(+)CD25(+)Foxp3(+) regulatory T (Treg) cells for maintenance of immune tolerance remain poorly defined.
|
704 |
17081781
|
Here we report that mobilized Lin(-)Sca-1(+)c-kit(+) (LSK) hematopoietic progenitor cells (HPCs), unlike medullary hematopoietic stem cells (HSCs), selectively drove the direct, immediate expansion of functional host-derived Treg cells, thereby preventing the progression to overt spontaneous autoimmune diabetes in nonobese diabetic mice.
|
705 |
17081781
|
Treg cell expansion required cell-to-cell contact and Notch3 signaling, which was mediated selectively through the Notch ligand Jagged2 expressed by the multipotent HPC subset, as assessed by small interfering RNA (siRNA) silencing.
|
706 |
17111650
|
Release of mitochondrial cytochrome c activates the cell death executioner caspase-3 protease resulting in the cleavage of poly-ADP ribose polymerase (PARP) involved in DNA repair.
|
707 |
17131386
|
Apoptotic signaling in methylglyoxal-treated human osteoblasts involves oxidative stress, c-Jun N-terminal kinase, caspase-3, and p21-activated kinase 2.
|
708 |
17131386
|
We further show that MG-induced apoptosis of osteoblasts involves specific apoptotic biochemical changes, including oxidative stress, c-Jun N-terminal kinase (JNK) activation, mitochondrial membrane potential changes, cytochrome C release, increased Bax/Bcl-2 protein ratios, and activation of caspases (caspase-9, caspase-3) and p21-activated protein kinase 2 (PAK2).
|
709 |
17131386
|
Treatment of osteoblasts with SP600125, a JNK-specific inhibitor, led to a reduction in MG-induced apoptosis and decreased activation of caspase-3 and PAK2, indicating that JNK activity is upstream of these events.
|
710 |
17131386
|
Experiments using anti-sense oligonucleotides against PAK2 further showed that PAK2 activation is required for MG-induced apoptosis in osteoblasts.
|
711 |
17131386
|
Apoptotic signaling in methylglyoxal-treated human osteoblasts involves oxidative stress, c-Jun N-terminal kinase, caspase-3, and p21-activated kinase 2.
|
712 |
17131386
|
We further show that MG-induced apoptosis of osteoblasts involves specific apoptotic biochemical changes, including oxidative stress, c-Jun N-terminal kinase (JNK) activation, mitochondrial membrane potential changes, cytochrome C release, increased Bax/Bcl-2 protein ratios, and activation of caspases (caspase-9, caspase-3) and p21-activated protein kinase 2 (PAK2).
|
713 |
17131386
|
Treatment of osteoblasts with SP600125, a JNK-specific inhibitor, led to a reduction in MG-induced apoptosis and decreased activation of caspase-3 and PAK2, indicating that JNK activity is upstream of these events.
|
714 |
17131386
|
Experiments using anti-sense oligonucleotides against PAK2 further showed that PAK2 activation is required for MG-induced apoptosis in osteoblasts.
|
715 |
17131386
|
Apoptotic signaling in methylglyoxal-treated human osteoblasts involves oxidative stress, c-Jun N-terminal kinase, caspase-3, and p21-activated kinase 2.
|
716 |
17131386
|
We further show that MG-induced apoptosis of osteoblasts involves specific apoptotic biochemical changes, including oxidative stress, c-Jun N-terminal kinase (JNK) activation, mitochondrial membrane potential changes, cytochrome C release, increased Bax/Bcl-2 protein ratios, and activation of caspases (caspase-9, caspase-3) and p21-activated protein kinase 2 (PAK2).
|
717 |
17131386
|
Treatment of osteoblasts with SP600125, a JNK-specific inhibitor, led to a reduction in MG-induced apoptosis and decreased activation of caspase-3 and PAK2, indicating that JNK activity is upstream of these events.
|
718 |
17131386
|
Experiments using anti-sense oligonucleotides against PAK2 further showed that PAK2 activation is required for MG-induced apoptosis in osteoblasts.
|
719 |
17192468
|
We have previously shown that the Ca(2+)-dependent actin-severing protein gelsolin plays an important role in regulated insulin secretion.
|
720 |
17192468
|
Overexpression of gelsolin resulted in a decrease in the percentage of terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL)(+) and active caspase-3(+) cells.
|
721 |
17192468
|
Conversely, knockdown of gelsolin by RNA interference in B1 cells caused an increase in the number of TUNEL(+) and active caspase-3(+) cells.
|
722 |
17192468
|
We have previously shown that the Ca(2+)-dependent actin-severing protein gelsolin plays an important role in regulated insulin secretion.
|
723 |
17192468
|
Overexpression of gelsolin resulted in a decrease in the percentage of terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL)(+) and active caspase-3(+) cells.
|
724 |
17192468
|
Conversely, knockdown of gelsolin by RNA interference in B1 cells caused an increase in the number of TUNEL(+) and active caspase-3(+) cells.
|
725 |
17210759
|
Activation of caspase 3 decreased and anti-apoptotic members of the Bcl-2 protein family increased as early as 1 week after diabetes onset.
|
726 |
17259069
|
Point mutations created in a glycosylation site (Asn51), a protein kinase C phosphorylation site (Ser106), and the enzymatic active site (Cys65) all inhibited L-PGDS-induced apoptosis as determined by both terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end-labeling (TUNEL) and caspase3 activity.
|
727 |
17315041
|
This muscle loss is mediated largely by the activation of the ubiquitin-proteasome system; however, caspase-3 catalyzes an initial step in this process by cleaving actomyosin into small protein fragments that are rapidly degraded by the proteasome-dependent proteolytic pathway.
|
728 |
17315041
|
We hypothesized that X-chromosome linked inhibitor of apoptosis protein (XIAP), an endogenous caspase-3 inhibitor, would block this first step in the cleavage of actomyosin that would make XIAP a candidate for treating muscle wasting.
|
729 |
17315041
|
In muscle of streptozotocin-treated insulin-deficient mice, total muscle protein degradation, caspase-3 activity, and myofibril destruction were increased while XIAP was decreased.
|
730 |
17315041
|
This muscle loss is mediated largely by the activation of the ubiquitin-proteasome system; however, caspase-3 catalyzes an initial step in this process by cleaving actomyosin into small protein fragments that are rapidly degraded by the proteasome-dependent proteolytic pathway.
|
731 |
17315041
|
We hypothesized that X-chromosome linked inhibitor of apoptosis protein (XIAP), an endogenous caspase-3 inhibitor, would block this first step in the cleavage of actomyosin that would make XIAP a candidate for treating muscle wasting.
|
732 |
17315041
|
In muscle of streptozotocin-treated insulin-deficient mice, total muscle protein degradation, caspase-3 activity, and myofibril destruction were increased while XIAP was decreased.
|
733 |
17315041
|
This muscle loss is mediated largely by the activation of the ubiquitin-proteasome system; however, caspase-3 catalyzes an initial step in this process by cleaving actomyosin into small protein fragments that are rapidly degraded by the proteasome-dependent proteolytic pathway.
|
734 |
17315041
|
We hypothesized that X-chromosome linked inhibitor of apoptosis protein (XIAP), an endogenous caspase-3 inhibitor, would block this first step in the cleavage of actomyosin that would make XIAP a candidate for treating muscle wasting.
|
735 |
17315041
|
In muscle of streptozotocin-treated insulin-deficient mice, total muscle protein degradation, caspase-3 activity, and myofibril destruction were increased while XIAP was decreased.
|
736 |
17316625
|
Intermittent fasting prevents the progression of type I diabetic nephropathy in rats and changes the expression of Sir2 and p53.
|
737 |
17316625
|
The aim of the present study was to study the role of intermittent fasting (IF) on DN and studying the expression of Sir2 and p53.
|
738 |
17316625
|
This was further accompanied by the concomitant decrease in cleavage of caspase3 and p53 expression.
|
739 |
17316625
|
These findings suggest that IF significantly improves biochemical parameters associated with development of DN and changes the expression of Sir2 and p53.
|
740 |
17360983
|
Specifically, strong antiapoptotic activities for AAT (Prolastin, human) were observed when murine insulinoma cells (MIN6) were exposed to tumor necrosis factor-alpha.
|
741 |
17360983
|
Importantly, in both model systems, treatment with AAT completely abolished induced caspase-3 activity.
|
742 |
17418096
|
Cell apoptosis was evaluated using Hoechst 33342 nuclear staining, caspase-3 activity, and c-Jun-N-terminal kinase (JNK) phosphorylation.
|
743 |
17418096
|
MG treatment resulted in blunted cell proliferation, an increase in the number of apoptotic cells, and the activation of caspase-3 and JNK along with enhanced intracellular ROS formation.
|
744 |
17418096
|
Cell apoptosis was evaluated using Hoechst 33342 nuclear staining, caspase-3 activity, and c-Jun-N-terminal kinase (JNK) phosphorylation.
|
745 |
17418096
|
MG treatment resulted in blunted cell proliferation, an increase in the number of apoptotic cells, and the activation of caspase-3 and JNK along with enhanced intracellular ROS formation.
|
746 |
17434478
|
In addition, coenzyme Q10 inhibited high glucose-induced cleavage of poly(ADP-ribose) polymerase, an endogenous caspase-3 substrate.
|
747 |
17434478
|
These results suggest that coenzyme Q10 prevents reactive oxygen species-induced apoptosis through inhibition of the mitochondria-dependent caspase-3 pathway.
|
748 |
17434478
|
Moreover, consistent with previous reports, high glucose caused upregulation of intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1) in HUVEC, and promoted the adhesion of U937 monocytic cells.
|
749 |
17434478
|
In addition, coenzyme Q10 inhibited high glucose-induced cleavage of poly(ADP-ribose) polymerase, an endogenous caspase-3 substrate.
|
750 |
17434478
|
These results suggest that coenzyme Q10 prevents reactive oxygen species-induced apoptosis through inhibition of the mitochondria-dependent caspase-3 pathway.
|
751 |
17434478
|
Moreover, consistent with previous reports, high glucose caused upregulation of intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1) in HUVEC, and promoted the adhesion of U937 monocytic cells.
|
752 |
17456851
|
FFA-induced inhibition of insulin secretion was not associated with increased transcript levels of the apoptosis markers Bax (BclII-associated X protein) and caspase-3.
|
753 |
17467845
|
In real-time RT-PCR, PDX-1, insulin, GLUT2 and prohormone convertase 1/3 gene expression in islets was markedly lower in old rats (33%, 13%, 20% and 34%, respectively) and old mice (56%, 42%, 28% and 22%, respectively) compared with young animals.
|
754 |
17467845
|
On the other hand, genes not specifically related to beta cell-specific function, such as caspase 3, superoxide dismutase 2 and glycerol kinase were not significantly different in expression in islets according to age.
|
755 |
17467845
|
In conclusion, with increasing age, insulin secretory function of islets deteriorates accompanied with a decrease in expression of beta cell-specific genes including PDX-1.
|
756 |
17573556
|
The central mechanisms of IAP apoptotic suppression appear to be through direct caspase and pro-caspase inhibition (primarily caspase 3 and 7) and modulation of, and by, the transcription factor NF-kappaB.
|
757 |
17624697
|
Treatment of HIT-T15 cells with HA, As, or both of them resulted loss of cell viability, apoptosis, depletion of ATP, increment of oxidative stress, activation of caspase 3, and dysfunction of insulin secretion.
|
758 |
17709900
|
The lesion volume was used as an index of necrosis and the sensorimotor cortex (layers 5 and 6) as well as the CA1 and CA3 regions of the hippocampus were analyzed for apoptosis using TUNEL staining and Caspase-3 immunoreactivity.
|
759 |
17721990
|
Co-treatment of HUVECs with 5 microM MG and 20 mM glucose significantly increased cytoplasmic free calcium levels, activation of nitric oxide synthase (NOS), caspase-3 and -9, cytochrome c release, and apoptotic cell death.
|
760 |
17721990
|
Pretreatment with nitric oxide (NO) scavengers could inhibit 5 microM MG/20 mM glucose-induced cytochrome c release, decrease activation of caspase-9 and caspase-3, and increase the gene expression and protein levels of p53 and p21, which are known to be involved in apoptotic signaling.
|
761 |
17721990
|
Inhibition of p53 protein expression using small interfering RNA (siRNA) blocked the activation of p21 and the cell apoptosis induced by 5 microM MG/20 mM glucose.
|
762 |
17721990
|
In contrast, inhibition of p21 protein expression by siRNA prevented apoptosis in HUVECs but had no effect on p53 expression.
|
763 |
17721990
|
Co-treatment of HUVECs with 5 microM MG and 20 mM glucose significantly increased cytoplasmic free calcium levels, activation of nitric oxide synthase (NOS), caspase-3 and -9, cytochrome c release, and apoptotic cell death.
|
764 |
17721990
|
Pretreatment with nitric oxide (NO) scavengers could inhibit 5 microM MG/20 mM glucose-induced cytochrome c release, decrease activation of caspase-9 and caspase-3, and increase the gene expression and protein levels of p53 and p21, which are known to be involved in apoptotic signaling.
|
765 |
17721990
|
Inhibition of p53 protein expression using small interfering RNA (siRNA) blocked the activation of p21 and the cell apoptosis induced by 5 microM MG/20 mM glucose.
|
766 |
17721990
|
In contrast, inhibition of p21 protein expression by siRNA prevented apoptosis in HUVECs but had no effect on p53 expression.
|
767 |
17804487
|
High glucose (HG; 25 mM) induces rounding of differentiated podocytes and changes in the distribution of F-actin but without quantitative changes in E-cadherin and the podocyte markers podocin, CD2AP, Neph1, or synaptopodin.
|
768 |
17804487
|
In these cells, BMP7 effectively activates smad5 (but not smad1) and raises p38 phosphorylation [which is also increased by transforming growth factor-beta (TGF-beta)].
|
769 |
17804487
|
HG as well as TGF-beta raise caspase-3 activity, increase apoptosis, and reduce cell survival which is, in part, blocked by BMP7.
|
770 |
17804487
|
Knockdown and forced expression studies indicate that smad5 is required as well as sufficient for these actions of BMP7.
|
771 |
17804487
|
These findings indicate that BMP7 is a differentiation and survival factor for podocytes, requires smad5, and can reduce diabetic podocyte injury.
|
772 |
17917385
|
Streptozotocin-induced diabetes increases apoptosis through JNK phosphorylation and Bax activation in rat testes.
|
773 |
17917385
|
The present study was designed to evaluate whether streptozotocin-induced diabetes increases apoptotic cell death in rat testes through activation of the JNK and Bax pathway.
|
774 |
17917385
|
Expression of phospho-JNK and Bax was significantly increased in the diabetic group, and the level of activated caspase-3 was also increased, compared to that of controls.
|
775 |
17917385
|
Our findings suggest that streptozotocin-induced diabetes increases apoptotic cell death in rat testes through phosphorylation of JNK and activation of Bax.
|
776 |
18006502
|
Blocking Raf-1 activity using a specific Raf-1 inhibitor or dominant-negative Raf-1 mutants led to a time- and dose-dependent increase in cell death, assessed by real-time imaging of propidium iodide incorporation, TUNEL, PCR-enhanced DNA laddering, and Caspase-3 cleavage.
|
777 |
18006502
|
Inhibiting Raf-1 in beta-cells led to a striking loss of Bad phosphorylation at serine 112 and an increase in the protein levels of both Bad and Bax.
|
778 |
18006502
|
Conversely, acutely inhibiting phosphatidylinositol 3-kinase Akt had more modest effects on beta-cell death.
|
779 |
18057217
|
In vitro, high-glucose medium significantly increased apoptosis and caspase-3 activity in rat immortalized RPTC overexpressing angiotensinogen compared with control cells, and these changes were prevented by insulin and/or RAS blockers.
|
780 |
18191076
|
Constant high glucose levels increased p47-phox, p67-phox, and p22-phox expression [components of the Nicotinamide adenine dinucleotide phosphate [NAD(P)H] oxidase complex]; endothelial nitric oxide synthase, nitric oxide, and O(2)(-) production; nitrotyrosine, 8-hydroxy-2'-deoxyguanosine, and caspase-3 expression; and reduced Bcl-2 expression.
|
781 |
18273753
|
In two osteoblast-like cell lines (UMR106 and MC3T3E1), AGE-modified albumin induced cell death, caspase-3 activity, altered intracellular oxidative stress and inhibited alkaline phosphatase activity.
|
782 |
18283273
|
In vitro studies have implicated activation of the p38 mitogen-activated protein kinase (MAPK) signalling pathway in cytokine-mediated pancreatic beta-cell injury.
|
783 |
18283273
|
Activation of the p38 MAPK occurs through two different upstream kinases, mitogen-activated protein kinase kinase 3 (MKK3) and MKK6.
|
784 |
18283273
|
MLD-STZ in WT mice exhibited two distinct phases of pancreatic damage: islet cell apoptosis (immunostaining for cleaved caspase-3) on day 5 in the absence of leukocyte infiltration, and this was followed by islet inflammation (leukocyte infiltration and cytokine production) and further islet cell apoptosis on day 14 resulting in a loss of insulin-producing beta-cells and an 80% incidence of hyperglycaemia.
|
785 |
18339714
|
Superoxide destabilization of beta-catenin augments apoptosis of high-glucose-stressed mesangial cells.
|
786 |
18339714
|
Although reactive oxygen radicals and Wnt signaling components are potent regulators that modulate renal tissue remodeling and morphogenesis, cross-talk between oxidative stress and Wnt/beta-catenin signaling in controlling high-glucose-impaired mesangial cell survival and renal function have not been tested.
|
787 |
18339714
|
In this study, high glucose induced Ras and Rac1 activation, superoxide burst, and Wnt5a/beta-catenin destabilization and subsequently promoted caspase-3 and poly (ADP-ribose) polymerase cleavage and apoptosis in mesangial cell cultures.
|
788 |
18339714
|
The pharmacological and genetic suppression of superoxide synthesis by superoxide dismutase and diphenyloniodium, dominant-negative Ras (S17N), and dominant-negative Rac1 (T17N) abrogated high-glucose-induced glycogen synthase kinase (GSK-3beta) activation and caspase-3 and poly (ADP-ribose) polymerase degradation.
|
789 |
18339714
|
Inactivation of Ras and Racl also reversed Wnt/beta-catenin expression and survival of mesangial cells.
|
790 |
18339714
|
Stabilization of beta-catenin by the transfection of stable beta-catenin (Delta45) and kinase-inactive GSK-3beta attenuated high-glucose-mediated mesangial cell apoptosis.
|
791 |
18339714
|
Immunohistological observation revealed that superoxide dismutase treatment abrogated diabetes-induced caspase-3 cleavage and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end-labeling (TUNEL) and increased Wnt5a/beta-catenin expression in renal glomeruli.
|
792 |
18339714
|
The Ras and Rac1 regulation of superoxide appeared to raise apoptotic activity by activating GSK-3beta and inhibiting Wnt5a/beta-catenin signaling.
|
793 |
18339714
|
Controlling oxidative stress and Wnt/beta-catenin signaling has potential for protecting renal tissue against the deleterious effect of high glucose.
|
794 |
18339714
|
Superoxide destabilization of beta-catenin augments apoptosis of high-glucose-stressed mesangial cells.
|
795 |
18339714
|
Although reactive oxygen radicals and Wnt signaling components are potent regulators that modulate renal tissue remodeling and morphogenesis, cross-talk between oxidative stress and Wnt/beta-catenin signaling in controlling high-glucose-impaired mesangial cell survival and renal function have not been tested.
|
796 |
18339714
|
In this study, high glucose induced Ras and Rac1 activation, superoxide burst, and Wnt5a/beta-catenin destabilization and subsequently promoted caspase-3 and poly (ADP-ribose) polymerase cleavage and apoptosis in mesangial cell cultures.
|
797 |
18339714
|
The pharmacological and genetic suppression of superoxide synthesis by superoxide dismutase and diphenyloniodium, dominant-negative Ras (S17N), and dominant-negative Rac1 (T17N) abrogated high-glucose-induced glycogen synthase kinase (GSK-3beta) activation and caspase-3 and poly (ADP-ribose) polymerase degradation.
|
798 |
18339714
|
Inactivation of Ras and Racl also reversed Wnt/beta-catenin expression and survival of mesangial cells.
|
799 |
18339714
|
Stabilization of beta-catenin by the transfection of stable beta-catenin (Delta45) and kinase-inactive GSK-3beta attenuated high-glucose-mediated mesangial cell apoptosis.
|
800 |
18339714
|
Immunohistological observation revealed that superoxide dismutase treatment abrogated diabetes-induced caspase-3 cleavage and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end-labeling (TUNEL) and increased Wnt5a/beta-catenin expression in renal glomeruli.
|
801 |
18339714
|
The Ras and Rac1 regulation of superoxide appeared to raise apoptotic activity by activating GSK-3beta and inhibiting Wnt5a/beta-catenin signaling.
|
802 |
18339714
|
Controlling oxidative stress and Wnt/beta-catenin signaling has potential for protecting renal tissue against the deleterious effect of high glucose.
|
803 |
18339714
|
Superoxide destabilization of beta-catenin augments apoptosis of high-glucose-stressed mesangial cells.
|
804 |
18339714
|
Although reactive oxygen radicals and Wnt signaling components are potent regulators that modulate renal tissue remodeling and morphogenesis, cross-talk between oxidative stress and Wnt/beta-catenin signaling in controlling high-glucose-impaired mesangial cell survival and renal function have not been tested.
|
805 |
18339714
|
In this study, high glucose induced Ras and Rac1 activation, superoxide burst, and Wnt5a/beta-catenin destabilization and subsequently promoted caspase-3 and poly (ADP-ribose) polymerase cleavage and apoptosis in mesangial cell cultures.
|
806 |
18339714
|
The pharmacological and genetic suppression of superoxide synthesis by superoxide dismutase and diphenyloniodium, dominant-negative Ras (S17N), and dominant-negative Rac1 (T17N) abrogated high-glucose-induced glycogen synthase kinase (GSK-3beta) activation and caspase-3 and poly (ADP-ribose) polymerase degradation.
|
807 |
18339714
|
Inactivation of Ras and Racl also reversed Wnt/beta-catenin expression and survival of mesangial cells.
|
808 |
18339714
|
Stabilization of beta-catenin by the transfection of stable beta-catenin (Delta45) and kinase-inactive GSK-3beta attenuated high-glucose-mediated mesangial cell apoptosis.
|
809 |
18339714
|
Immunohistological observation revealed that superoxide dismutase treatment abrogated diabetes-induced caspase-3 cleavage and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end-labeling (TUNEL) and increased Wnt5a/beta-catenin expression in renal glomeruli.
|
810 |
18339714
|
The Ras and Rac1 regulation of superoxide appeared to raise apoptotic activity by activating GSK-3beta and inhibiting Wnt5a/beta-catenin signaling.
|
811 |
18339714
|
Controlling oxidative stress and Wnt/beta-catenin signaling has potential for protecting renal tissue against the deleterious effect of high glucose.
|
812 |
18348079
|
Enhanced protection against cytokine- and fatty acid-induced apoptosis in pancreatic beta cells by combined treatment with glucagon-like peptide-1 receptor agonists and insulin analogues.
|
813 |
18348079
|
The aim of this study was to test if the anti-apoptotic activity of GLP-1 agonists and insulin analogues is mediated by different pathways and if combined treatment may provide augmented protection against beta-cell death.
|
814 |
18348079
|
Incubation of INS-1 cells with cytokines or fatty acids increased the number of apoptotic cells and caspase 3 activity, which was reduced by pretreatment with GLP-1 and its receptor agonists exendin-4 and AVE0010 by 50-60%.
|
815 |
18348079
|
No acute Akt-phosphorylation in response to GLP-1 receptor agonists could be observed, however, it became detectable after 24-hour stimulation.
|
816 |
18348079
|
We show here that the anti-apoptotic activity of GLP-1 and its receptor agonists AVE0010 and exendin-4 is enhanced by addition of insulin analogues and that the anti-apoptotic action of GLP-1 mimetics is mostly unrelated to Akt2 signaling.
|
817 |
18348079
|
It is suggested that combination of GLP-1 receptor agonists and insulin analogues, specifically insulin glargine, may represent a new therapeutic option for preservation of beta-cell mass in type 2 diabetic patients.
|
818 |
18378205
|
Osteoclast formation was analyzed using tartrate resistant acid phosphatase (TRACP) assay, expression of calcitonin receptor (CTR) and cathepsin K mRNAs, and cultures were examined for reactive oxygen species (ROS) using dichlorodihydrofluorescein diacetate (DCF-DA) fluorescence, caspase-3 and Nuclear Factor kappaB (NF-kappaB) activity.
|
819 |
18406405
|
Transforming growth factor-beta1 (TGF-beta1) has been associated with diabetic nephropathy and retinopathy but not neuropathy.
|
820 |
18406405
|
In diabetic DRG using quantitative real-time PCR (QRT-PCR), TGF-beta1 and TGF-beta2 mRNA, but not TGF-beta3, was increased at 4 and 12 weeks.
|
821 |
18406405
|
In high glucose conditions, combination with TGF-beta2>beta1 increases the percent of cleaved caspase-3 compared to high glucose alone and TGF-beta neutralizing antibody inhibits this increase.
|
822 |
18410524
|
We then examined, in the plasma and thymus, oxidative damage biomarkers, including lipid peroxidation, protein oxidation, reactive oxygen species, calcium and antioxidant defence systems, mitochondrial potential and apoptosis-inducing factors (caspase 3, p53 and p21).
|
823 |
18481334
|
The data indicated that methylglyoxal induced mouse Neuro-2A neuroblastoma (Neuro-2A) cell apoptosis via alternation of mitochondria membrane potential and Bax/Bcl-2 ratio, activation of caspase-3, and cleavage of poly (ADP-ribose) polymerase.
|
824 |
18481334
|
Furthermore, the results demonstrated that activation of mitogen-activated protein kinase signal pathways (JNK and p38) participated in the methylglyoxal-induced Neuro-2A cell apoptosis process.
|
825 |
18524857
|
Under diabetic conditions, Bcl-2 protein expression was decreased, whereas cleaved caspase-3 protein expression was increased (P < 0.05), and these changes were inhibited by FR167653 treatment.
|
826 |
18566681
|
Real-time monitoring of apoptosis by caspase-3-like protease induced FRET reduction triggered by amyloid aggregation.
|
827 |
18653708
|
Cardiac muscle protein catabolism in diabetes mellitus: activation of the ubiquitin-proteasome system by insulin deficiency.
|
828 |
18653708
|
In skeletal muscle this insulin-dependent increase in protein degradation involves activation of both caspase-3 and the ubiquitin-proteasome system.
|
829 |
18653708
|
Expression of ubiquitin mRNA and chymotrypsin-like activity in the proteasome were increased, indicating activation of the ubiquitin-proteasome system in diabetic mouse heart.
|
830 |
18653708
|
Insulin receptor substrate-1 (IRS-1) tyrosine phosphorylation, and Akt phosphorylation were decreased.
|
831 |
18653708
|
Insulin replacement prevented the decrease in IRS-1/Akt phosphorylation, the increase in proteolysis, and attenuated the increase in ubiquitin mRNA.
|
832 |
18653708
|
We conclude that insulinopenia accelerates proteolysis in cardiac muscle by reducing IRS-1/Akt signaling, which leads to activation of the ubiquitin-proteasome proteolytic pathway.
|
833 |
18708362
|
During apoptosis, caspase-3 cleaved p52 to generate a p38 fragment that lacked the NH(2)-terminal PWWP domain and failed to transactivate the Hsp27 promoter in reporter assays.
|
834 |
18708362
|
However, p38 retained chromatin association properties and repressed the transactivation potential of LEDGF/p75.
|
835 |
18758938
|
Evaluation of insulin and ascorbic acid effects on expression of Bcl-2 family proteins and caspase-3 activity in hippocampus of STZ-induced diabetic rats.
|
836 |
18805504
|
In this study, we reported that a mitochondrial fission modulator, Dynamin-related protein 1 (Drp-1), plays an important role in high glucose induced beta cell apoptosis.
|
837 |
18805504
|
Induction of Drp-1 expression significantly promoted high glucose induced apoptosis in Drp-1WT (Drp-1 wild type) inducible beta cell line, but not in Drp-1K38A (a dominant negative mutant of Drp1) inducible beta cell line.
|
838 |
18805504
|
We further demonstrated that mitochondrial fission, cytochrome C release, mitochondrial membrane potential decreased, caspase-3 activation and generation of reactive oxygen species were enhanced by induction of Drp-1WT, but prevented by Drp-1K38A in pancreatic beta cells under high glucose condition.
|
839 |
18813861
|
Therefore, we directly investigated exercise training to determine whether it was able to ameliorate the molecular pathogenic phenotypes in the brain using a neuron-specific enolase (NSE)/Swedish mutation of amyloid precursor protein (APPsw) transgenic (Tg) mice as a novel AD model.
|
840 |
18813861
|
The results indicated (i) that amyloid beta-42 (Abeta-42) peptides were significantly decreased in the NSE/APPsw Tg mice following exercise training; (ii) that exercise training inhibited the apoptotic biochemical cascades, including cytochrome c, caspase-9, caspase-3 and Bax; (iii) that the glucose transporter-1 (GLUT-1) and brain-derived neurotrophic factor (BDNF) proteins induced by exercise training protected the neurons from injury by inducing the concomitant expression of genes that encode proteins such as superoxide dismutase-1 (SOD-1), catalase and Bcl-2, which suppress oxidative stress and excitotoxic injury; (iv) that heat-shock protein-70 (HSP-70) and glucose-regulated protein-78 (GRP-78) were significantly increased in the exercise (EXE) group when compared to the sedentary (SED) group, and that these proteins may benefit the brain by making it more resistant to stress-induced neuron cell damage; (v) and that exercise training contributed to the restoration of normal levels of serum total cholesterol, insulin and glucose.
|
841 |
18840766
|
However, the role of Bax and Bcl-2 in regulating palmitate-induced apoptosis has not been well studied.
|
842 |
18840766
|
Therefore, the purpose of this study was to determine whether palmitate-induced apoptosis in C(2)C(12) myotubes is dependent on Bax to Bcl-2 binding.
|
843 |
18840766
|
An additional purpose of this study was to determine whether the changes in Bax to Bcl-2 binding corresponded to decreases in Akt signaling in palmitate-treated myoblasts.
|
844 |
18840766
|
Bax to Bcl-2 binding was determined through a coimmunoprecipitation assay that was performed in myotubes after 2 h of serum starvation, followed by 10 min of serum reintroduction.
|
845 |
18840766
|
This experiment evaluated whether temporal Akt activity coincided with Bax to Bcl-2 binding.
|
846 |
18840766
|
Palmitate treatment increased apoptosis in C(2)C(12) myotubes as shown by a twofold increase in DNA fragmentation, an approximately fivefold increase in caspase-3 activity, and a 2.5-fold increase in caspase-9 activity.
|
847 |
18840766
|
In addition, there was a fourfold reduction in Bax to Bcl-2 binding with palmitate treatment, which mirrored the reduction in Akt(Ser473) phosphorylation.
|
848 |
18923682
|
Evaluation of Bcl-2 family gene expression and Caspase-3 activity in hippocampus STZ-induced diabetic rats.
|
849 |
18923682
|
We assessed the expression of Bcl-2 family members at both mRNA and protein levels as well as the Caspase-3 activity, in order to investigate the occurrence of apoptosis in hippocampus of STZ-induced diabetic rats.
|
850 |
18923682
|
The expressions of Bcl-2, Bcl-x(L), and Bax mRNA and proteins were measured using RT-PCR and western blotting, respectively.
|
851 |
18923682
|
The result showed that mRNA and protein levels of Bcl-2 and Bcl-x(L) were lower in hippocampus of diabetic group than that of the control group, whereas expressions of Bax in hippocampus of diabetic rats were higher than that of controls at both mRNA and protein levels (P < .01).
|
852 |
18923682
|
Therefore, the induction of diabetes is associated with increased ratios of Bax/Bcl-2, Bax/Bcl-x(L), and increased caspase-3 activity in hippocampus which shows that apoptosis is favored in hippocampal region.
|
853 |
18923682
|
Evaluation of Bcl-2 family gene expression and Caspase-3 activity in hippocampus STZ-induced diabetic rats.
|
854 |
18923682
|
We assessed the expression of Bcl-2 family members at both mRNA and protein levels as well as the Caspase-3 activity, in order to investigate the occurrence of apoptosis in hippocampus of STZ-induced diabetic rats.
|
855 |
18923682
|
The expressions of Bcl-2, Bcl-x(L), and Bax mRNA and proteins were measured using RT-PCR and western blotting, respectively.
|
856 |
18923682
|
The result showed that mRNA and protein levels of Bcl-2 and Bcl-x(L) were lower in hippocampus of diabetic group than that of the control group, whereas expressions of Bax in hippocampus of diabetic rats were higher than that of controls at both mRNA and protein levels (P < .01).
|
857 |
18923682
|
Therefore, the induction of diabetes is associated with increased ratios of Bax/Bcl-2, Bax/Bcl-x(L), and increased caspase-3 activity in hippocampus which shows that apoptosis is favored in hippocampal region.
|
858 |
18923682
|
Evaluation of Bcl-2 family gene expression and Caspase-3 activity in hippocampus STZ-induced diabetic rats.
|
859 |
18923682
|
We assessed the expression of Bcl-2 family members at both mRNA and protein levels as well as the Caspase-3 activity, in order to investigate the occurrence of apoptosis in hippocampus of STZ-induced diabetic rats.
|
860 |
18923682
|
The expressions of Bcl-2, Bcl-x(L), and Bax mRNA and proteins were measured using RT-PCR and western blotting, respectively.
|
861 |
18923682
|
The result showed that mRNA and protein levels of Bcl-2 and Bcl-x(L) were lower in hippocampus of diabetic group than that of the control group, whereas expressions of Bax in hippocampus of diabetic rats were higher than that of controls at both mRNA and protein levels (P < .01).
|
862 |
18923682
|
Therefore, the induction of diabetes is associated with increased ratios of Bax/Bcl-2, Bax/Bcl-x(L), and increased caspase-3 activity in hippocampus which shows that apoptosis is favored in hippocampal region.
|
863 |
18975252
|
Cytokine- and FasL-induced apoptosis were simulated using IL-1beta/IFN-gamma, Super-FasLigand and the beta-cell line NIT-1.
|
864 |
18975252
|
Exposure to IL-1beta/IFN-gamma induced NIT-1 cell death.
|
865 |
18975252
|
FasL augmented cytokine-induced cell death accompanied by increased caspase-3 activation, DNA fragmentation, and chromatin condensation.
|
866 |
18975252
|
In conclusion, cytokines account for the major part of cell death induced by the simultaneously action of FasL + IL-1beta/IFN-gamma.
|
867 |
19007452
|
A previous study showed that high glucose induced the apoptosis of human umbilical vein endothelial cells (HUVEC) via the sequential activation of reactive oxygen species, Jun N-terminal kinase (JNK) and caspase-3.
|
868 |
19007452
|
JNK and caspase-3 were evaluated by a kinase activity assay and Western blot analysis.
|
869 |
19007452
|
The effect of quercetin sulfate/glucuronide on H2O2 quenching, inhibition of JNK and caspase-3 activity at the nanomolar concentration (300 nm) was similar to that of ascorbic acid at the micromolar concentration (100 microm).
|
870 |
19007452
|
A previous study showed that high glucose induced the apoptosis of human umbilical vein endothelial cells (HUVEC) via the sequential activation of reactive oxygen species, Jun N-terminal kinase (JNK) and caspase-3.
|
871 |
19007452
|
JNK and caspase-3 were evaluated by a kinase activity assay and Western blot analysis.
|
872 |
19007452
|
The effect of quercetin sulfate/glucuronide on H2O2 quenching, inhibition of JNK and caspase-3 activity at the nanomolar concentration (300 nm) was similar to that of ascorbic acid at the micromolar concentration (100 microm).
|
873 |
19007452
|
A previous study showed that high glucose induced the apoptosis of human umbilical vein endothelial cells (HUVEC) via the sequential activation of reactive oxygen species, Jun N-terminal kinase (JNK) and caspase-3.
|
874 |
19007452
|
JNK and caspase-3 were evaluated by a kinase activity assay and Western blot analysis.
|
875 |
19007452
|
The effect of quercetin sulfate/glucuronide on H2O2 quenching, inhibition of JNK and caspase-3 activity at the nanomolar concentration (300 nm) was similar to that of ascorbic acid at the micromolar concentration (100 microm).
|
876 |
19067524
|
Earlier we have shown coexpression of human vascular endothelial growth factor (hVEGF) and human interleukin-1 receptor antagonist (hIL-1Ra) after transfection of plasmid DNA encoding these two genes.
|
877 |
19067524
|
Coexpression of hVEGF and hIL-1Ra by islets showed decrease in caspase-3 activity and apoptosis induced by a cocktail of inflammatory cytokines such as TNF-alpha, IL-1beta and IFN-gamma.
|
878 |
19067524
|
Immunohistochemical staining of the islet bearing kidney sections at day 20 after transplantation was positive for human insulin, hVEGF and von Willebrand factor.
|
879 |
19100955
|
The amyloid hypothesis of type 2 diabetes mellitus postulates that elevated levels of normally expressed monomeric proteins of human islet amyloid polypeptide (hIAPP) trigger oligomerization that independently causes fibril formation and disease progression.
|
880 |
19100955
|
Several markers for insulin, IAPP, amyloid fibrils (thioflavin T), and apoptosis (cleaved caspase-3) were used in combination with an oligomer-specific antibody.
|
881 |
19133311
|
Investigating the signaling pathways, we found that STZ administration caused the activation of phospho-ERK1/2, phospho-p38, NF-kappaB and destruction of mitochondrial transmembrane potential, release of cytochrome c as well as activation of caspase 3 in the pancreas tissue keeping the levels of total ERK1/2 and p38 significantly unchanged.
|
882 |
19175688
|
In this study, we investigated the effect of the xanthine oxidase (XO) inhibitor, allopurinol (ALP), on cardiac dysfunction, oxidative-nitrosative stress, apoptosis, poly(ADP-ribose) polymerase (PARP) activity and fibrosis associated with diabetic cardiomyopathy in mice.
|
883 |
19175688
|
Myocardial XO, p22(phox), p40(phox), p47(phox), gp91(phox), iNOS, eNOS mRNA and/or protein levels, ROS and nitrotyrosine (NT) formation, caspase3/7 and PARP activity, chromatin fragmentation and various markers of fibrosis (collagen-1, TGF-beta, CTGF, fibronectin) were measured using molecular biology and biochemistry methods or immunohistochemistry.
|
884 |
19175688
|
Diabetes was characterized by increased myocardial, liver and serum XO activity (but not expression), increased myocardial ROS generation, p22(phox), p40(phox), p47(phox), p91(phox) mRNA expression, iNOS (but not eNOS) expression, NT generation, caspase 3/7 and PARP activity/expression, chromatin fragmentation and fibrosis (enhanced accumulation of collagen, TGF-beta, CTGF and fibronectin), and declined systolic and diastolic myocardial performance.
|
885 |
19175688
|
ALP attenuated the diabetes-induced increased myocardial, liver and serum XO activity, myocardial ROS, NT generation, iNOS expression, apoptosis, PARP activity and fibrosis, which were accompanied by improved systolic (measured by the evaluation of both load-dependent and independent indices of myocardial contractility) and diastolic performance of the hearts of treated diabetic animals.
|
886 |
19175688
|
In this study, we investigated the effect of the xanthine oxidase (XO) inhibitor, allopurinol (ALP), on cardiac dysfunction, oxidative-nitrosative stress, apoptosis, poly(ADP-ribose) polymerase (PARP) activity and fibrosis associated with diabetic cardiomyopathy in mice.
|
887 |
19175688
|
Myocardial XO, p22(phox), p40(phox), p47(phox), gp91(phox), iNOS, eNOS mRNA and/or protein levels, ROS and nitrotyrosine (NT) formation, caspase3/7 and PARP activity, chromatin fragmentation and various markers of fibrosis (collagen-1, TGF-beta, CTGF, fibronectin) were measured using molecular biology and biochemistry methods or immunohistochemistry.
|
888 |
19175688
|
Diabetes was characterized by increased myocardial, liver and serum XO activity (but not expression), increased myocardial ROS generation, p22(phox), p40(phox), p47(phox), p91(phox) mRNA expression, iNOS (but not eNOS) expression, NT generation, caspase 3/7 and PARP activity/expression, chromatin fragmentation and fibrosis (enhanced accumulation of collagen, TGF-beta, CTGF and fibronectin), and declined systolic and diastolic myocardial performance.
|
889 |
19175688
|
ALP attenuated the diabetes-induced increased myocardial, liver and serum XO activity, myocardial ROS, NT generation, iNOS expression, apoptosis, PARP activity and fibrosis, which were accompanied by improved systolic (measured by the evaluation of both load-dependent and independent indices of myocardial contractility) and diastolic performance of the hearts of treated diabetic animals.
|
890 |
19208856
|
The higher incidence of HIV-PI-induced cell death was associated with cleavage and, hence, activation of caspase-3 and poly(ADP)-ribose polymerase but not with activation of phospho-pancreatic endoplasmic reticulum (ER) kinase or induction of ER stress apoptotic factor C/EBP homologous protein.
|
891 |
19208856
|
Exposure to the HIV-PIs, however, led to activation of mitochondria-associated caspase-9, caused a loss in mitochondrial membrane potential, and promoted the release of cytochrome c, suggesting that HIV-PIs currently in clinically use can induce beta-cell apoptosis by activating the mitochondrial apoptotic pathway.
|
892 |
19213729
|
Absence of caspase-3 protects pancreatic {beta}-cells from c-Myc-induced apoptosis without leading to tumor formation.
|
893 |
19213729
|
When suppression of apoptosis is achieved by overexpression of Bcl-x(L) in an inducible model of c-Myc activation, a full spectrum of tumor development, including distant metastasis, occurs.
|
894 |
19213729
|
To test whether caspase-3 is an essential mediator of apoptosis in this model of tumorigenesis, we generated caspase-3 knock-out mice containing the inducible c-myc transgene (c-Myc(+)Casp3(-/-)).
|
895 |
19213729
|
In contrast to Bcl-x(L)-overexpressing c-Myc(+) mice, c-Myc(+)Casp3(-/-) mice remained euglycemic for up to 30 days of c-Myc activation, and there was no evidence of tumor formation.
|
896 |
19213729
|
Interestingly, caspase-3 deletion also led to the suppression of proliferation, perhaps through regulation of the cell cycle inhibitory protein p27, suggesting a possible mechanism for maintaining a balance between suppression of apoptosis and excessive proliferation in the context of c-Myc activation.
|
897 |
19213729
|
Additionally, c-Myc-activated Casp3(-/-) mice were protected from streptozotocin-induced diabetes.
|
898 |
19213729
|
Our studies demonstrate that caspase-3 deletion confers protection from c-Myc-induced apoptosis and diabetes development without unwanted tumorigenic effects.
|
899 |
19213729
|
Absence of caspase-3 protects pancreatic {beta}-cells from c-Myc-induced apoptosis without leading to tumor formation.
|
900 |
19213729
|
When suppression of apoptosis is achieved by overexpression of Bcl-x(L) in an inducible model of c-Myc activation, a full spectrum of tumor development, including distant metastasis, occurs.
|
901 |
19213729
|
To test whether caspase-3 is an essential mediator of apoptosis in this model of tumorigenesis, we generated caspase-3 knock-out mice containing the inducible c-myc transgene (c-Myc(+)Casp3(-/-)).
|
902 |
19213729
|
In contrast to Bcl-x(L)-overexpressing c-Myc(+) mice, c-Myc(+)Casp3(-/-) mice remained euglycemic for up to 30 days of c-Myc activation, and there was no evidence of tumor formation.
|
903 |
19213729
|
Interestingly, caspase-3 deletion also led to the suppression of proliferation, perhaps through regulation of the cell cycle inhibitory protein p27, suggesting a possible mechanism for maintaining a balance between suppression of apoptosis and excessive proliferation in the context of c-Myc activation.
|
904 |
19213729
|
Additionally, c-Myc-activated Casp3(-/-) mice were protected from streptozotocin-induced diabetes.
|
905 |
19213729
|
Our studies demonstrate that caspase-3 deletion confers protection from c-Myc-induced apoptosis and diabetes development without unwanted tumorigenic effects.
|
906 |
19213729
|
Absence of caspase-3 protects pancreatic {beta}-cells from c-Myc-induced apoptosis without leading to tumor formation.
|
907 |
19213729
|
When suppression of apoptosis is achieved by overexpression of Bcl-x(L) in an inducible model of c-Myc activation, a full spectrum of tumor development, including distant metastasis, occurs.
|
908 |
19213729
|
To test whether caspase-3 is an essential mediator of apoptosis in this model of tumorigenesis, we generated caspase-3 knock-out mice containing the inducible c-myc transgene (c-Myc(+)Casp3(-/-)).
|
909 |
19213729
|
In contrast to Bcl-x(L)-overexpressing c-Myc(+) mice, c-Myc(+)Casp3(-/-) mice remained euglycemic for up to 30 days of c-Myc activation, and there was no evidence of tumor formation.
|
910 |
19213729
|
Interestingly, caspase-3 deletion also led to the suppression of proliferation, perhaps through regulation of the cell cycle inhibitory protein p27, suggesting a possible mechanism for maintaining a balance between suppression of apoptosis and excessive proliferation in the context of c-Myc activation.
|
911 |
19213729
|
Additionally, c-Myc-activated Casp3(-/-) mice were protected from streptozotocin-induced diabetes.
|
912 |
19213729
|
Our studies demonstrate that caspase-3 deletion confers protection from c-Myc-induced apoptosis and diabetes development without unwanted tumorigenic effects.
|
913 |
19213729
|
Absence of caspase-3 protects pancreatic {beta}-cells from c-Myc-induced apoptosis without leading to tumor formation.
|
914 |
19213729
|
When suppression of apoptosis is achieved by overexpression of Bcl-x(L) in an inducible model of c-Myc activation, a full spectrum of tumor development, including distant metastasis, occurs.
|
915 |
19213729
|
To test whether caspase-3 is an essential mediator of apoptosis in this model of tumorigenesis, we generated caspase-3 knock-out mice containing the inducible c-myc transgene (c-Myc(+)Casp3(-/-)).
|
916 |
19213729
|
In contrast to Bcl-x(L)-overexpressing c-Myc(+) mice, c-Myc(+)Casp3(-/-) mice remained euglycemic for up to 30 days of c-Myc activation, and there was no evidence of tumor formation.
|
917 |
19213729
|
Interestingly, caspase-3 deletion also led to the suppression of proliferation, perhaps through regulation of the cell cycle inhibitory protein p27, suggesting a possible mechanism for maintaining a balance between suppression of apoptosis and excessive proliferation in the context of c-Myc activation.
|
918 |
19213729
|
Additionally, c-Myc-activated Casp3(-/-) mice were protected from streptozotocin-induced diabetes.
|
919 |
19213729
|
Our studies demonstrate that caspase-3 deletion confers protection from c-Myc-induced apoptosis and diabetes development without unwanted tumorigenic effects.
|
920 |
19213729
|
Absence of caspase-3 protects pancreatic {beta}-cells from c-Myc-induced apoptosis without leading to tumor formation.
|
921 |
19213729
|
When suppression of apoptosis is achieved by overexpression of Bcl-x(L) in an inducible model of c-Myc activation, a full spectrum of tumor development, including distant metastasis, occurs.
|
922 |
19213729
|
To test whether caspase-3 is an essential mediator of apoptosis in this model of tumorigenesis, we generated caspase-3 knock-out mice containing the inducible c-myc transgene (c-Myc(+)Casp3(-/-)).
|
923 |
19213729
|
In contrast to Bcl-x(L)-overexpressing c-Myc(+) mice, c-Myc(+)Casp3(-/-) mice remained euglycemic for up to 30 days of c-Myc activation, and there was no evidence of tumor formation.
|
924 |
19213729
|
Interestingly, caspase-3 deletion also led to the suppression of proliferation, perhaps through regulation of the cell cycle inhibitory protein p27, suggesting a possible mechanism for maintaining a balance between suppression of apoptosis and excessive proliferation in the context of c-Myc activation.
|
925 |
19213729
|
Additionally, c-Myc-activated Casp3(-/-) mice were protected from streptozotocin-induced diabetes.
|
926 |
19213729
|
Our studies demonstrate that caspase-3 deletion confers protection from c-Myc-induced apoptosis and diabetes development without unwanted tumorigenic effects.
|
927 |
19213729
|
Absence of caspase-3 protects pancreatic {beta}-cells from c-Myc-induced apoptosis without leading to tumor formation.
|
928 |
19213729
|
When suppression of apoptosis is achieved by overexpression of Bcl-x(L) in an inducible model of c-Myc activation, a full spectrum of tumor development, including distant metastasis, occurs.
|
929 |
19213729
|
To test whether caspase-3 is an essential mediator of apoptosis in this model of tumorigenesis, we generated caspase-3 knock-out mice containing the inducible c-myc transgene (c-Myc(+)Casp3(-/-)).
|
930 |
19213729
|
In contrast to Bcl-x(L)-overexpressing c-Myc(+) mice, c-Myc(+)Casp3(-/-) mice remained euglycemic for up to 30 days of c-Myc activation, and there was no evidence of tumor formation.
|
931 |
19213729
|
Interestingly, caspase-3 deletion also led to the suppression of proliferation, perhaps through regulation of the cell cycle inhibitory protein p27, suggesting a possible mechanism for maintaining a balance between suppression of apoptosis and excessive proliferation in the context of c-Myc activation.
|
932 |
19213729
|
Additionally, c-Myc-activated Casp3(-/-) mice were protected from streptozotocin-induced diabetes.
|
933 |
19213729
|
Our studies demonstrate that caspase-3 deletion confers protection from c-Myc-induced apoptosis and diabetes development without unwanted tumorigenic effects.
|
934 |
19258488
|
In fact, TXNIP expression was increased in H9C2 cardiomyocytes incubated at high glucose, and cardiac expression of TXNIP and cleaved caspase-3 were also elevated in vivo in streptozotocin- and obesity-induced diabetic mice.
|
935 |
19258488
|
Interestingly, we found significantly reduced cleaved caspase-3 levels in HcB-19 hearts, suggesting that TXNIP plays a critical role in cardiac apoptosis and that the verapamil effects were mediated by TXNIP reduction.
|
936 |
19258488
|
In fact, TXNIP expression was increased in H9C2 cardiomyocytes incubated at high glucose, and cardiac expression of TXNIP and cleaved caspase-3 were also elevated in vivo in streptozotocin- and obesity-induced diabetic mice.
|
937 |
19258488
|
Interestingly, we found significantly reduced cleaved caspase-3 levels in HcB-19 hearts, suggesting that TXNIP plays a critical role in cardiac apoptosis and that the verapamil effects were mediated by TXNIP reduction.
|
938 |
19275670
|
The roles of the PDZ-containing proteins bridge-1 and PDZD2 in the regulation of insulin production and pancreatic beta-cell mass.
|
939 |
19275670
|
In a screen for interactors that regulate transcription factor function in pancreatic beta cells, we isolated two PDZ-containing proteins Bridge-1 (PSMD9) and PDZD2, which contain one and six PDZ domains, respectively.
|
940 |
19275670
|
Bridge-1 interacts with both E12 and PDX-1 to stimulate insulin promoter activity.
|
941 |
19275670
|
Interestingly, PDZD2 is proteolytically processed by caspase-3 to generate a carboxy-terminal secreted protein (sPDZD2) containing two PDZ domains.
|
942 |
19275670
|
We propose that the PDZ domain proteins Bridge-1 and PDZD2 likely transduce signals that regulate insulin production, proliferation, and survival of pancreatic beta cells.
|
943 |
19370169
|
In addition, nine isolates inhibited aurora kinase A, an anti-cancer related protein, and three inhibited caspase 3, a protein related to neurodegenerative diseases.
|
944 |
19376147
|
Cr(III)(pic)(3) treatment leads to collapse of the mitochondrial membrane potential, Bax expression, increase in cytosolic cytochrome c content and active caspase-3 and DNA fragmentation and all these manifestations are reduced by pretreating the lymphocytes with N-acetyl cysteine.
|
945 |
19376168
|
We co-expressed human vascular endothelial growth factor (hVEGF) and human interleukin-1 receptor antagonist (hIL-1Ra) after transduction of human islets with Adv-hVEGF-hIL-1Ra.
|
946 |
19376168
|
There was dose and time dependent expression of hVEGF and hIL-1Ra or hHGF and hIL-1Ra by islets, which led to decrease in caspase-3 activity and apoptosis induced by a cocktail of TNF-alpha, IL-1beta and IFN-gamma.
|
947 |
19376168
|
Immunohistochemical staining of the islet bearing kidney sections was positive for human insulin, growth factor (hVEGF or hHGF) and von Willebrand factor.
|
948 |
19376202
|
Hippocampal caspase-3+ and beta amyloid (Abeta+) cell numbers, as well as beta-site amyloid precursor protein-cleaving enzyme (BACE1) levels and activity, increased in both groups.
|
949 |
19376202
|
Moreover, HFD-STZ treatment exacerbated stroke-induced cognitive deficits, additively increased MCAO-induced activation of caspase-3, and increased levels of BACE1, C99 and Abeta.
|
950 |
19376202
|
We concluded that type 2 diabetes exacerbated poststroke dementia possibly due to brain injury and synergistic generation of Abeta via activation of BACE1.
|
951 |
19376202
|
Hippocampal caspase-3+ and beta amyloid (Abeta+) cell numbers, as well as beta-site amyloid precursor protein-cleaving enzyme (BACE1) levels and activity, increased in both groups.
|
952 |
19376202
|
Moreover, HFD-STZ treatment exacerbated stroke-induced cognitive deficits, additively increased MCAO-induced activation of caspase-3, and increased levels of BACE1, C99 and Abeta.
|
953 |
19376202
|
We concluded that type 2 diabetes exacerbated poststroke dementia possibly due to brain injury and synergistic generation of Abeta via activation of BACE1.
|
954 |
19455054
|
The level of cytochrome c expression and caspase 3 activation was also reduced.
|
955 |
19455054
|
BHE elevated antiapoptotic proteins Bcl-2 and heme oxygenase-1 and stimulated the phosphorylation of survival protein Akt simultaneously decreasing the apoptotic proteins Bax and Src.
|
956 |
19455054
|
In addition, BHE enhanced the protein expression of peroxisome proliferator-activated receptor-gamma, peroxisome proliferator-activated receptor-delta, and Glut-4, probably revealing the antiobese and antidiabetic potential of BHE.
|
957 |
19467786
|
We previously reported that high glucose can induce apoptosis in PC12 cells, as evidenced by DNA fragmentation and high Bax/Bcl-2 ratio.
|
958 |
19467786
|
The present study examined the involvement of caspase-3, the executioner, and two initiators of apoptosis, caspase-8 and caspase-9, during high glucose-induced apoptosis in PC12 cells, a neuronal cell line.
|
959 |
19539633
|
Endothelial cells are unique in expressing a second TGFbeta type I receptor, Alk1, as well as the co-receptor, endoglin which increases the affinity of the ligand to Alk1.
|
960 |
19539633
|
In differentiated blood outgrowth endothelial cells from normal subjects Alk1 and endoglin are constitutively expressed.
|
961 |
19539633
|
Incubation with high glucose (HG) and glycated albumin (gAlb) induces Alk5 and raises TGFbeta secretion 3-fold without affecting Alk1 or endoglin levels.
|
962 |
19539633
|
This diabetic milieu accelerates cell proliferation, at least in part, through TGFbeta/Alk1-smad1/5 and probably involving VEGF as well as pro-migratory MMP2 downstream of Alk1.
|
963 |
19539633
|
In contrast, HG/gAlb also increases caspase-3 activity (suggesting increased apoptosis) in part but not entirely using a TGFbeta/Alk5-smad2/3 pathway.
|
964 |
19539633
|
The findings support pleiotropy of TGFbeta in endothelial cells including proliferative effects (through Alk1-smad1/5) and pro-apoptotic signals (through Alk5-smad2/3).
|
965 |
19544426
|
Subsequent single-cell cloning resulted in a homogeneous cell population with a CD29(+)CD44(+)Sca-1(+) surface antigen expression profile.
|
966 |
19544426
|
Our stage-specific approach successfully differentiated mesodermic mE-ASCs into definitive endoderm (cells expressing Sox17, Foxa2, GATA-4, and cytokeratin [CK]-19), then into pancreatic endoderm (cells expressing pancreatic and duodenal homeobox [PDX]-1, Ngn3, NeuroD, Pax4, and glucose transporter 2), and finally into cells expressing pancreatic hormones (insulin, glucagon, somatostatin).
|
967 |
19610036
|
Apoptosis was inferred by caspase-3 protein expression and caspase-3 activity and changes in Bcl-2 mRNA.
|
968 |
19610036
|
RT-PCR was used to analyse PDX-1, insulin and UCP-2 mRNA expression in RINm5F beta-cells and insulin levels were quantified from the cell culture supernatant.
|
969 |
19610036
|
Gallic acid dose-dependently increased insulin secretion in RINm5F beta-cells and upregulated mRNA of PDX-1 and insulin.
|
970 |
19617408
|
The p38 mitogen-activated protein kinase (MAPK) is activated during heart diseases that might be associated with myocardial damage and cardiac remodeling process.
|
971 |
19617408
|
The purpose of this study was to investigate the role of p38alpha MAPK after experimental diabetes by using transgenic (TG) mice with cardiac-specific expression of a dominant-negative mutant form of p38alpha MAPK.
|
972 |
19617408
|
In addition, diabetic TG mice had reduced cardiac myocyte diameter, content of cardiac fibrosis, LV tissue expressions of atrial natriuretic peptide, transforming growth factor beta1, and collagen III compared with diabetic NTG mice.
|
973 |
19617408
|
Moreover, LV expression of NADPH oxidase subunits, p22(phox), p67(phox), gp91(phox), and Nox4, reactive oxygen species and lipid peroxidation levels were significantly increased in diabetic NTG mice, but not in diabetic TG mice.
|
974 |
19617408
|
Furthermore, myocardial apoptosis, the number of caspase-3-positive cells, and the downregulation of antiapoptotic protein Bcl-X(L) were less in diabetic TG mice compared with diabetic NTG mice.
|
975 |
19617408
|
In conclusion, our data establish that p38alpha MAPK activity is required for cardiac remodeling after diabetes induction and suggest that p38alpha MAPK may promote cardiomyocyte apoptosis by downregulation of Bcl-X(L).
|
976 |
19657327
|
HO-1 expression, its activity, the ratio of Bax/Bcl-2 protein, and active caspase-3 fragments were all significantly higher in isolated glomeruli of diabetic rats and in high glucose-treated podocytes.
|
977 |
19657716
|
PEDF inhibits VEGF- and EPO- induced angiogenesis in retinal endothelial cells through interruption of PI3K/Akt phosphorylation.
|
978 |
19657716
|
The main pathological feature of proliferative diabetic retinopathy (PDR) is hypoxia, and overproduction of growth factors like vascular endothelial growth factor (VEGF) and erythropoietin (Epo).
|
979 |
19657716
|
Pigment epithelium-derived factor (PEDF), a 50-kDa protein secreted by retinal pigment epithelium, inhibits the growth of new blood vessel induced in the eye in a variety of ways with a yet elusive mechanism.
|
980 |
19657716
|
Here, we investigated the possible mechanism by which PEDF inhibits VEGF- and Epo-induced angiogenic effects in RECs is mediated through PI3K/Akt pathway.
|
981 |
19657716
|
PEDF treatment induced the apoptosis in RECs by activating caspase-3 and DNA fragmentation.
|
982 |
19657716
|
We found a dose-dependent increase in cell survival with VEGF or Epo, which was attenuated in the presence of PEDF.
|
983 |
19657716
|
In addition, PEDF significantly (P < 0.05) inhibited migration and in vitro tube formation in RECs in the presence of VEGF as like PI3K/Akt inhibitor.
|
984 |
19657716
|
Of interest, PEDF effectively abrogated VEGF-mediated phosphorylation of PI3K/Akt.
|
985 |
19657716
|
Further studies using RECs transfected with constitutively active and dominant-negative forms of Akt suggest that PEDF could inhibit VEGF- and also Epo-induced angiogenesis by disruption of PI3K/Akt signaling.
|
986 |
19690068
|
Neither diabetes nor UCF-101 affected the expression of HtrA2/Omi and XIAP or caspase-3 activity.
|
987 |
19690068
|
UCF-101 significantly downregulated the AMPK-degrading enzymes PP2A and PP2C, the effect of which was mimicked by resveratrol.
|
988 |
19706790
|
We detected expression of p65, Rel-B, p50, p105, p52, and the ribosomal protein S3 (rpS3) in human islet cells.
|
989 |
19706790
|
Among these, only p65 and rpS3 were translocated from the cytosolic to the nuclear fraction in response to cytokines.
|
990 |
19706790
|
This resulted in increased expression of c-Rel and inhibitory factor κB, increased κB-binding activity, and augmented protein levels of Bcl-X(L,) c-IAP2, and heat shock protein 72. c-Rel expression in human islet cells protected against cytokine-induced caspase 3 activation and cell death. c-Rel protected also against streptozotocin- and H(2)O(2)-induced cell death, in both intact rat islets and human islet cells.
|
991 |
19706790
|
We conclude that rpS3 participates in NF-κB signaling and that a genetic increase in the activity of the NF-κB subunit c-Rel results in protection against cell death in human islets.
|
992 |
19710242
|
Aldosterone synthase (CYP11B2) and MCR mRNA and protein expression were determined by real-time PCR and Western blot, respectively, and aldosterone levels by radioimmunoassay.
|
993 |
19710242
|
CYP11B2 and MCR expression were significantly higher in HG-stimulated podocytes and DM glomeruli compared with NG cells and C glomeruli, respectively, along with increased aldosterone levels.
|
994 |
19710242
|
Western blot analysis revealed that cleaved caspase-3 and Bax expression was significantly increased, whereas Bcl-2 expression was significantly decreased in HG-stimulated podocytes and in DM glomeruli.
|
995 |
19727064
|
Increasing the amount of AOPPs in the media of conditionally immortalized podocytes rapidly triggered the production of intracellular superoxide by activation of NADPH oxidase and this, in turn, led to an upregulation of p53, Bax, caspase 3 activity, and apoptosis.
|
996 |
19738038
|
This irreversible DNA damage following 36-h incubation with IL-1 correlates with the activation of caspase-3 (cleavage and activity).
|
997 |
19748889
|
Suppression of p38 MAPK and JNK via Akt-mediated inhibition of apoptosis signal-regulating kinase 1 constitutes a core component of the beta-cell pro-survival effects of glucose-dependent insulinotropic polypeptide.
|
998 |
19748889
|
Glucose-dependent insulinotropic polypeptide (GIP) potentiates glucose-stimulated insulin secretion, insulin biosynthesis, and beta-cell proliferation and survival.
|
999 |
19748889
|
In previous studies GIP was shown to promote beta-cell survival by modulating the activity of multiple signaling modules and regulating gene transcription of pro- and anti-apoptotic bcl-2 family proteins.
|
1000 |
19748889
|
We have now evaluated the mechanisms by which GIP regulates the dynamic interactions between cytoplasmic bcl-2 family members and the mitochondria in INS-1 cells during apoptosis induced by treatment with staurosporine (STS), an activator of the mitochondria-mediated apoptotic pathway.
|
1001 |
19748889
|
STS induced translocation of bad and bimEL, activation of mitochondrial bax, release of mitochondrial cytochrome c, cleavage of caspase-3, and apoptosis.
|
1002 |
19748889
|
Using selective enzyme inhibitors, overexpression of dominant-negative Akt, and Akt siRNA, it was demonstrated that GIP promoted beta-cell survival via Akt-dependent suppression of p38 MAPK and JNK and that combined inhibition was sufficient to explain the entire pro-survival responses to GIP during STS treatment.
|
1003 |
19748889
|
This signaling pathway also explained the pro-survival effects of GIP on INS-1 cells exposed to two other promoters of stress: thapsigargin (endoplasmic reticulum stress) and etoposide (genotoxic stress).
|
1004 |
19748889
|
Importantly, we discovered that GIP suppressed p38 MAPK and JNK via Akt-mediated changes in the phosphorylation state of the apoptosis signal-regulating kinase 1 in INS-1 cells and human islets, resulting in inhibition of its activity.
|
1005 |
19748889
|
Inhibition of apoptosis by GIP is therefore mediated via a key pathway involving Akt-dependent inhibition of apoptosis signal-regulating kinase 1, which subsequently prevents the pro-apoptotic actions of p38 MAPK and JNK.
|
1006 |
19785000
|
The anti-diabetic effect of anthocyanins in streptozotocin-induced diabetic rats through glucose transporter 4 regulation and prevention of insulin resistance and pancreatic apoptosis.
|
1007 |
19785000
|
ANT not only enhanced STZ-mediated insulin level decreases, but also decreased the triglyceride levels induced by STZ injection in serum.
|
1008 |
19785000
|
Diabetic rats exhibited a lower expression of glucose transporter 4 proteins in the membrane fractions of heart and skeletal muscle tissues, which was enhanced by ANT.
|
1009 |
19785000
|
In addition, ANT activated insulin receptor phosphorylation, suggesting an increased utilization of glucose by tissues.
|
1010 |
19785000
|
Moreover, ANT protected pancreatic tissue from STZ-induced apoptosis through regulation of caspase-3, Bax, and Bcl-2 proteins.
|
1011 |
19785000
|
Furthermore, ANT significantly suppressed malondialdehyde levels and restored superoxide dismutase and catalase activities in diabetic rats.
|
1012 |
19785000
|
Taken together, ANT from black soybean seed coat have anti-diabetic effects that are due, in part, to the regulation of glucose transporter 4 and prevention of insulin resistance and pancreatic apoptosis, suggesting a possible use as a drug to regulate diabetes.
|
1013 |
19800940
|
Treadmill exercise improves cognitive function and facilitates nerve growth factor signaling by activating mitogen-activated protein kinase/extracellular signal-regulated kinase1/2 in the streptozotocin-induced diabetic rat hippocampus.
|
1014 |
19800940
|
We investigated the effects of regular treadmill exercise for 6 weeks on NGF, tyrosine kinase receptor A (TrkA), p75 receptor, phosphatidylinositol 3-kinase (PI3-K), mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase 1/2 (Erk1/2), cyclic AMP response element-binding protein (CREB), and caspase-3 protein levels; we also assessed cell survival and cognitive function.
|
1015 |
19800940
|
Increased 5-bromo-2'-deoxyuridine-5'-mono-phosphate (BrdU)-labeled cells (P<0.001) and significant increases in NGF and TrkA protein levels were observed in the hippocampal dentate gyrus in the NEG and DEG (P<0.001 and P<0.01, respectively).
|
1016 |
19800940
|
These results show that treadmill exercise improves cognitive function, increases the number of BrdU-labeled cells, and increases NGF levels, by the activation of the MAPK/Erk1/2 signaling pathway in the hippocampus of diabetic rats.
|
1017 |
19808082
|
Angiotensin II-induced p53-dependent cardiac apoptotic cell death: its prevention by metallothionein.
|
1018 |
19808082
|
The present study was to investigate whether Ang II induces p53 expression and activation and if so, whether Ang II-induced cardiac cell death is p53-dependent, and whether a potent antioxidant metallothionein (MT) prevents Ang II-induced p53 expression, and associate apoptotic cell death signaling.
|
1019 |
19808082
|
We found that exposure of H9c2 cells to Ang II at 10, 50 and 100 nM for 24 h induced a significant apoptotic effect, measured by DNA fragmentation and cleaved caspase-3.
|
1020 |
19808082
|
Induction of apoptotic cell death by Ang II can be completely blocked by p53 inhibitor Pitithrin-alpha.
|
1021 |
19808082
|
Exposure of H9c2 cells to Ang II also significantly increased p53 phosphorylation, DNA double strand breaks and Bax/Bcl-2 ratio.
|
1022 |
19808082
|
All these effects were not observed in H9c2MT7 cells that forcedly overexpresses human MT-IIA gene, suggesting the preventive effect of antioxidant MT against Ang II-induced p53 activation and its apoptotic death signaling.
|
1023 |
19808082
|
Furthermore, the in vitro finding was validated in animal models by supplying Ang II to wild-type mice (WT) and MT-TG mice that has cardiac-specifically overexpressed MT gene.
|
1024 |
19808082
|
Ang II-induced significant up-regulation of p53 expression along with an increase in Bax/Bcl-2 ratio in the hearts of WT mice, but not MT-TG mice.
|
1025 |
19808082
|
These results suggest that Ang II-induced cardiac apoptotic cell death is mediated by p53 apoptotic signaling pathway, which is related to oxidative stress.
|
1026 |
19808082
|
Antioxidant MT can completely prevent Ang II-induced p53 activation and associated apoptotic effect in the heart.
|
1027 |
19820199
|
The expression of profibrotic factors, transforming growth factor-beta (TGF-beta1), connective tissue growth factor, and matrix proteins was increased, and the TGF-beta1-linked transcription factors phospho-Smad3/4 and activator protein-1 were activated in the DM1 myocardium.
|
1028 |
19820199
|
Proapoptotic molecules FasL, Fas, Bax, and cleaved caspase-3 were also augmented.
|
1029 |
19820199
|
In addition, hypertension was associated with activation of NF-kappaB, increased inflammatory cell infiltrate, and expression of the mediators [interleukin-1beta (IL-1beta), tumor necrosis factor-alpha, monocyte chemoattractant protein 1, vascular cell adhesion molecule 1, angiotensinogen, and oxidants], which were absent in long-term DM1.
|
1030 |
19820199
|
In cultured cardiomyocytes, IL-10, TGF-beta1, and catalase blocked the glucose-stimulated expression of proinflammatory genes.
|
1031 |
19908241
|
Troglitazone (TGZ) is a synthetic thiazolidinedione drug belonging to a group of potent peroxisome proliferator-activated receptor gamma (PPAR gamma) agonists known to inhibit proliferation, alter cell cycle regulation, and induce apoptosis in various cancer cell types.
|
1032 |
19908241
|
In Western blot, combined TGZ and ASA also could downregulate Cdk2, E2F-1, cyclin B1, cyclin D3 protein, and the ratio of phospho-Rb/Rb.
|
1033 |
19908241
|
Importantly, apoptosis was synergistically induced by the combination treatment, as evidenced by caspase-3 activation and PARP cleavage.
|
1034 |
19908241
|
The involvement of PI3K/Akt inhibition and p27 upregulation, as well as hypophosphorylation of Rac1 at ser71, were demonstrated.
|
1035 |
19910683
|
Further GLEt reduced apoptosis by inhibiting the release of cytochrome c and subsequent cleavage of PARP and caspase-3.
|
1036 |
19915796
|
Real time-PCR revealed high expression of the ADP receptors P2Y(1) and P2Y(13).
|
1037 |
19915796
|
Adding the ADP analogue, 2MeSADP, to MIN6c4 cells induced calcium influx/mobilization and inhibition of cAMP production by activation of P2Y(1) and P2Y(13), respectively. 2MeSADP reduced cell proliferation and increased Caspase-3 activity; both these effects could be fully reversed by the P2Y(13) receptor antagonist MRS2211.
|
1038 |
19915796
|
We further discovered that blocking the P2Y(13) receptor results in enhanced ERK1/2, Akt/PKB and CREB phosphorylation mechanisms involved in beta-cell survival.
|
1039 |
19933272
|
AMPK is transiently activated by nitric oxide in insulinoma cells and rat islets following IL-1 treatment or by the exogenous addition of nitric oxide.
|
1040 |
19933272
|
Active AMPK promotes the functional recovery of beta-cell oxidative metabolism and abrogates the induction of pathways that mediate cell death such as caspase-3 activation following exposure to nitric oxide.
|
1041 |
19948220
|
Decreases on Mn-superoxide dismutase (SOD), catalase, and heme oxygenase-1 levels by I/R were increased by sulforaphane treatment and pretreatment of 5-HD blocked the sulforaphane effects.
|
1042 |
19948220
|
Increases in Bax and caspase-3 levels, and decrease in Bcl-2 level by I/R were attenuated by sulforaphane treatment.
|
1043 |
19952270
|
Through Western blot analysis, we discerned that prolonged exposure to palmitate impairs insulin activation, as assessed by phosphorylation of Akt.
|
1044 |
19952270
|
Palmitate treatment induced ER stress through a c-Jun N-terminal kinase (JNK)-dependent pathway because a selective JNK inhibitor blocked palmitate activation of the ER stress pathways eIF2 alpha and X-box binding protein-1.
|
1045 |
19952270
|
Interestingly, JNK inhibition did not prevent the palmitate-mediated cleaved caspase-3 increase, an apoptotic marker, or insulin signaling attenuation.
|
1046 |
19952270
|
However, pretreatment with the AMP kinase activator, aminoimidazole carboxamide ribonucleotide, blocked JNK phosphorylation and importantly prevented caspase-3 cleavage and restored insulin signaling during short-term exposure to palmitate.
|
1047 |
19952270
|
Through Western blot analysis, we discerned that prolonged exposure to palmitate impairs insulin activation, as assessed by phosphorylation of Akt.
|
1048 |
19952270
|
Palmitate treatment induced ER stress through a c-Jun N-terminal kinase (JNK)-dependent pathway because a selective JNK inhibitor blocked palmitate activation of the ER stress pathways eIF2 alpha and X-box binding protein-1.
|
1049 |
19952270
|
Interestingly, JNK inhibition did not prevent the palmitate-mediated cleaved caspase-3 increase, an apoptotic marker, or insulin signaling attenuation.
|
1050 |
19952270
|
However, pretreatment with the AMP kinase activator, aminoimidazole carboxamide ribonucleotide, blocked JNK phosphorylation and importantly prevented caspase-3 cleavage and restored insulin signaling during short-term exposure to palmitate.
|
1051 |
19959470
|
In mitochondria, TXNIP binds to and oxidizes Trx2, thereby reducing Trx2 binding to ASK1 and allowing for ASK1 phosphorylation/activation, resulting in induction of the mitochondrial pathway of apoptosis with cytochrome c release and caspase-3 cleavage.
|
1052 |
19959470
|
TXNIP overexpression and Trx2 (but not cytosolic Trx1) silencing mimic these effects.
|
1053 |
19966057
|
Ten weeks following injection, diabetic hearts displayed increased caspase-3 and caspase-9 activities, indicating enhanced apoptotic signaling (P < 0.05, for both).
|
1054 |
19966057
|
Furthermore, diabetic IFM possessed lower cytochrome c and BcL-2 levels and increased Bax levels (P < 0.05, for all 3).
|
1055 |
20030709
|
In ethanol-treated cells, MTT reduction and ATP production decreased, whereas reactive oxygen species, uncoupling protein 2 and cleaved caspase-3 levels increased.
|
1056 |
20043993
|
Downregulated expression of the secreted glycoprotein follistatin-like 1 (Fstl1) is a robust hallmark of preadipocyte to adipocyte conversion.
|
1057 |
20043993
|
Time course studies in multiple adipogenesis models reveal downregulation of Fstl1 is a hallmark of white and brown adipocyte conversion.
|
1058 |
20043993
|
By Western blot, we show culture media of 3T3-L1 preadipocytes contains high levels of Fstl1 protein that rapidly decline in adipocyte conversion.
|
1059 |
20043993
|
Moreover, we observe a correlation between preadipocyte phenotype and Fstl1 expression in that TNFalpha-mediated de-differentiation of 3T3-L1 adipocytes is accompanied by re-expression of Fstl1 transcript and protein.
|
1060 |
20043993
|
Furthermore, of 10 additional preadipocyte-expressed genes analyzed we find Pref-1, Col1A1, Sca-1/Ly6a, Lox and Thbs2, are also downregulated by 5-aza-cytidine.
|
1061 |
20043993
|
Using luciferase reporter constructs containing 791 or 3922 bp of the Fstl1 5' flanking region, we determine negative transcriptional regulation by Kruppel-like factor 15.
|
1062 |
20043993
|
Together, our data suggest downregulation of Fstl1 expression may be an important feature of preadipocyte to adipocyte conversion.
|
1063 |
20053369
|
STZ administration elevated the levels of IL-2 as well as IFN-gamma and attenuated the level of TNF-alpha in the sera of diabetic animals.
|
1064 |
20053369
|
Investigating the oxidative stress responsive cell signaling pathways, increased expressions (immunoreactive concentrations) of phosphorylated p65 as well as its inhibitor protein phospho IkappaBalpha and phosphorylated mitogen activated protein kinases (MAPKs) have been observed in diabetic spleen tissue.
|
1065 |
20053369
|
Studies on isolated splenocytes revealed that hyperglycemia caused disruption of mitochondrial membrane potential, elevation in the concentration of cytosolic cytochrome c as well as activation of caspase 3 leading to apoptotic cell death.
|
1066 |
20060012
|
There were no changes in caspase 3 activity, cleaved poly(ADP-ribose) polymerase (PARP) protein expression, and mitochondrial cytochrome c release in HG or cinnamaldehyde treatments in these cells.
|
1067 |
20060012
|
HG-induced extracellular signal-regulated kinase (ERK)/c-Jun N-terminal kinase (JNK)/p38 mitogen-activated protein kinase (MAPK) (but not the Janus kinase 2/signal transducers and activators of transcription) activation was markedly blocked by cinnamaldehyde.
|
1068 |
20060012
|
The ability of cinnamaldehyde to inhibit HG-induced hypertrophy was verified by the observation that it significantly decreased cell size, cellular hypertrophy index, and protein levels of collagen IV, fibronectin, and alpha-smooth muscle actin (alpha-SMA).
|
1069 |
20060012
|
The results obtained in this study suggest that cinnamaldehyde treatment of renal interstitial fibroblasts that have been stimulated by HG reduces their ability to proliferate and hypertrophy through mechanisms that may be dependent on inactivation of the ERK/JNK/p38 MAPK pathway.
|
1070 |
20062799
|
This study examined the pattern of distribution of orexin-1 receptor (OX1R) in the endocrine cells of the pancreas of normal and diabetic Wistar (a model of type 1 diabetes), Goto-Kakizaki (GK, a model of type 2 diabetes) rats and in orexin-deficient (OX-/-) and wild type mice.
|
1071 |
20062799
|
OX1R co-localized with insulin (INS) and glucagon (GLU) in the pancreas of Wistar and GK rats.
|
1072 |
20062799
|
The tissue level of OX1R protein increased with the duration of DM especially in type 1 diabetes where it co-localized with cleaved caspase 3 in islet cells.
|
1073 |
20103643
|
EWS/FLI1 oncogene activates caspase 3 transcription and triggers apoptosis in vivo.
|
1074 |
20103643
|
EWS/FLI1 is a fusion gene product generated by a chromosomal translocation t(11;22)(q24;q12) found in Ewing sarcoma.
|
1075 |
20103643
|
EWS/FLI1 encodes an aberrant transcription factor with oncogenic properties in vitro.
|
1076 |
20103643
|
Paradoxically, expression of EWS/FLI1 in nontransformed primary cells results in apoptosis, but the exact mechanism remains unclear.
|
1077 |
20103643
|
In primary mouse embryonic fibroblasts derived from conditional EWS/FLI1 knock-in embryos, expression of EWS/FLI1 resulted in apoptosis with concomitant increase in the endogenous Caspase 3 (Casp3) mRNA.
|
1078 |
20103643
|
EWS/FLI1 directly bound and activated the CASP3 promoter, whereas small interfering RNA-mediated knockdown of EWS/FLI1 led to a marked decrease in CASP3 transcripts in Ewing sarcoma cell lines.
|
1079 |
20103643
|
Ectopic expression of EWS/FLI1 resulted in an increased expression of CASP3 protein in heterologous cell lines.
|
1080 |
20103643
|
Importantly, expression of EWS/FLI1 in the mouse triggered an early onset of apoptosis in kidneys and acute lethality.
|
1081 |
20103643
|
These findings suggest that EWS/FLI1 induces apoptosis, at least partially, through the activation of CASP3 and show the cell context-dependent roles of EWS/FLI1 in apoptosis and tumorigenesis.
|
1082 |
20103643
|
EWS/FLI1 oncogene activates caspase 3 transcription and triggers apoptosis in vivo.
|
1083 |
20103643
|
EWS/FLI1 is a fusion gene product generated by a chromosomal translocation t(11;22)(q24;q12) found in Ewing sarcoma.
|
1084 |
20103643
|
EWS/FLI1 encodes an aberrant transcription factor with oncogenic properties in vitro.
|
1085 |
20103643
|
Paradoxically, expression of EWS/FLI1 in nontransformed primary cells results in apoptosis, but the exact mechanism remains unclear.
|
1086 |
20103643
|
In primary mouse embryonic fibroblasts derived from conditional EWS/FLI1 knock-in embryos, expression of EWS/FLI1 resulted in apoptosis with concomitant increase in the endogenous Caspase 3 (Casp3) mRNA.
|
1087 |
20103643
|
EWS/FLI1 directly bound and activated the CASP3 promoter, whereas small interfering RNA-mediated knockdown of EWS/FLI1 led to a marked decrease in CASP3 transcripts in Ewing sarcoma cell lines.
|
1088 |
20103643
|
Ectopic expression of EWS/FLI1 resulted in an increased expression of CASP3 protein in heterologous cell lines.
|
1089 |
20103643
|
Importantly, expression of EWS/FLI1 in the mouse triggered an early onset of apoptosis in kidneys and acute lethality.
|
1090 |
20103643
|
These findings suggest that EWS/FLI1 induces apoptosis, at least partially, through the activation of CASP3 and show the cell context-dependent roles of EWS/FLI1 in apoptosis and tumorigenesis.
|
1091 |
20103643
|
EWS/FLI1 oncogene activates caspase 3 transcription and triggers apoptosis in vivo.
|
1092 |
20103643
|
EWS/FLI1 is a fusion gene product generated by a chromosomal translocation t(11;22)(q24;q12) found in Ewing sarcoma.
|
1093 |
20103643
|
EWS/FLI1 encodes an aberrant transcription factor with oncogenic properties in vitro.
|
1094 |
20103643
|
Paradoxically, expression of EWS/FLI1 in nontransformed primary cells results in apoptosis, but the exact mechanism remains unclear.
|
1095 |
20103643
|
In primary mouse embryonic fibroblasts derived from conditional EWS/FLI1 knock-in embryos, expression of EWS/FLI1 resulted in apoptosis with concomitant increase in the endogenous Caspase 3 (Casp3) mRNA.
|
1096 |
20103643
|
EWS/FLI1 directly bound and activated the CASP3 promoter, whereas small interfering RNA-mediated knockdown of EWS/FLI1 led to a marked decrease in CASP3 transcripts in Ewing sarcoma cell lines.
|
1097 |
20103643
|
Ectopic expression of EWS/FLI1 resulted in an increased expression of CASP3 protein in heterologous cell lines.
|
1098 |
20103643
|
Importantly, expression of EWS/FLI1 in the mouse triggered an early onset of apoptosis in kidneys and acute lethality.
|
1099 |
20103643
|
These findings suggest that EWS/FLI1 induces apoptosis, at least partially, through the activation of CASP3 and show the cell context-dependent roles of EWS/FLI1 in apoptosis and tumorigenesis.
|
1100 |
20103643
|
EWS/FLI1 oncogene activates caspase 3 transcription and triggers apoptosis in vivo.
|
1101 |
20103643
|
EWS/FLI1 is a fusion gene product generated by a chromosomal translocation t(11;22)(q24;q12) found in Ewing sarcoma.
|
1102 |
20103643
|
EWS/FLI1 encodes an aberrant transcription factor with oncogenic properties in vitro.
|
1103 |
20103643
|
Paradoxically, expression of EWS/FLI1 in nontransformed primary cells results in apoptosis, but the exact mechanism remains unclear.
|
1104 |
20103643
|
In primary mouse embryonic fibroblasts derived from conditional EWS/FLI1 knock-in embryos, expression of EWS/FLI1 resulted in apoptosis with concomitant increase in the endogenous Caspase 3 (Casp3) mRNA.
|
1105 |
20103643
|
EWS/FLI1 directly bound and activated the CASP3 promoter, whereas small interfering RNA-mediated knockdown of EWS/FLI1 led to a marked decrease in CASP3 transcripts in Ewing sarcoma cell lines.
|
1106 |
20103643
|
Ectopic expression of EWS/FLI1 resulted in an increased expression of CASP3 protein in heterologous cell lines.
|
1107 |
20103643
|
Importantly, expression of EWS/FLI1 in the mouse triggered an early onset of apoptosis in kidneys and acute lethality.
|
1108 |
20103643
|
These findings suggest that EWS/FLI1 induces apoptosis, at least partially, through the activation of CASP3 and show the cell context-dependent roles of EWS/FLI1 in apoptosis and tumorigenesis.
|
1109 |
20103643
|
EWS/FLI1 oncogene activates caspase 3 transcription and triggers apoptosis in vivo.
|
1110 |
20103643
|
EWS/FLI1 is a fusion gene product generated by a chromosomal translocation t(11;22)(q24;q12) found in Ewing sarcoma.
|
1111 |
20103643
|
EWS/FLI1 encodes an aberrant transcription factor with oncogenic properties in vitro.
|
1112 |
20103643
|
Paradoxically, expression of EWS/FLI1 in nontransformed primary cells results in apoptosis, but the exact mechanism remains unclear.
|
1113 |
20103643
|
In primary mouse embryonic fibroblasts derived from conditional EWS/FLI1 knock-in embryos, expression of EWS/FLI1 resulted in apoptosis with concomitant increase in the endogenous Caspase 3 (Casp3) mRNA.
|
1114 |
20103643
|
EWS/FLI1 directly bound and activated the CASP3 promoter, whereas small interfering RNA-mediated knockdown of EWS/FLI1 led to a marked decrease in CASP3 transcripts in Ewing sarcoma cell lines.
|
1115 |
20103643
|
Ectopic expression of EWS/FLI1 resulted in an increased expression of CASP3 protein in heterologous cell lines.
|
1116 |
20103643
|
Importantly, expression of EWS/FLI1 in the mouse triggered an early onset of apoptosis in kidneys and acute lethality.
|
1117 |
20103643
|
These findings suggest that EWS/FLI1 induces apoptosis, at least partially, through the activation of CASP3 and show the cell context-dependent roles of EWS/FLI1 in apoptosis and tumorigenesis.
|
1118 |
20164374
|
In this study, we analyzed the contribution of hydroxyl radical in the liver apoptosis mediated by hyperglycemia through the Bax-caspase pathway and the effects of insulin protection against the apoptosis induced by hyperglycemia.
|
1119 |
20164374
|
Besides, hyperglycemia significantly increased mitochondrial BAX protein expression, cytosolic cytochrome c levels, and caspase-3 activity leading to an increase in apoptotic index.
|
1120 |
20164374
|
Interestingly, the treatment of diabetic rats with desferoxamine or tempol (antioxidants/hydroxyl radical scavengers) significantly attenuated the increase in both hydroxyl radical production and in LPO produced by hyperglycemia, preventing apoptosis by reduction of mitochondrial BAX and cytosolic cytochrome c levels.
|
1121 |
20200974
|
TNF-alpha mediates diabetes-enhanced chondrocyte apoptosis during fracture healing and stimulates chondrocyte apoptosis through FOXO1.
|
1122 |
20200974
|
Tumor necrosis factor alpha (TNF-alpha) protein levels were assessed by ELISA and caspase-3 by bioactivity assay.
|
1123 |
20200974
|
In vitro studies investigated the proapoptotic transcription factor FOXO1 in regulating TNF-induced apoptosis of chondrogenic ATDC5 and C3H10T1/2 cells as representative of differentiated chondrocytes, which are important during endochondral ossification. mRNA profiling revealed an upregulation of gene sets related to apoptosis in the diabetic group on day 16 when cartilage resorption is active but not day 12 or day 22.
|
1124 |
20200974
|
This coincided with elevated TNF-alpha protein levels, chondrocyte apoptosis, enhanced caspase-3 activity, and increased FOXO1 nuclear translocation (p < .05).
|
1125 |
20200974
|
Silencing FOXO1 using siRNA in vitro significantly reduced TNF-induced apoptosis and caspase activity in differentiated chondrocytes.
|
1126 |
20200974
|
The mRNA levels of the proapoptotic genes caspase-3, caspase-8, caspase-9, and TRAIL were significantly reduced with silencing of FOXO1 in chondrocytic cells.
|
1127 |
20200974
|
Inhibiting caspase-8 and caspase-9 significantly reduced TNF-induced apoptosis in chondrogenic cells.
|
1128 |
20200974
|
Diabetes increased chondrocyte apoptosis through a mechanism that involved enhanced production of TNF-alpha, which stimulates chondrocyte apoptosis and upregulates mRNA levels of apoptotic genes through FOXO1 activation.
|
1129 |
20200974
|
TNF-alpha mediates diabetes-enhanced chondrocyte apoptosis during fracture healing and stimulates chondrocyte apoptosis through FOXO1.
|
1130 |
20200974
|
Tumor necrosis factor alpha (TNF-alpha) protein levels were assessed by ELISA and caspase-3 by bioactivity assay.
|
1131 |
20200974
|
In vitro studies investigated the proapoptotic transcription factor FOXO1 in regulating TNF-induced apoptosis of chondrogenic ATDC5 and C3H10T1/2 cells as representative of differentiated chondrocytes, which are important during endochondral ossification. mRNA profiling revealed an upregulation of gene sets related to apoptosis in the diabetic group on day 16 when cartilage resorption is active but not day 12 or day 22.
|
1132 |
20200974
|
This coincided with elevated TNF-alpha protein levels, chondrocyte apoptosis, enhanced caspase-3 activity, and increased FOXO1 nuclear translocation (p < .05).
|
1133 |
20200974
|
Silencing FOXO1 using siRNA in vitro significantly reduced TNF-induced apoptosis and caspase activity in differentiated chondrocytes.
|
1134 |
20200974
|
The mRNA levels of the proapoptotic genes caspase-3, caspase-8, caspase-9, and TRAIL were significantly reduced with silencing of FOXO1 in chondrocytic cells.
|
1135 |
20200974
|
Inhibiting caspase-8 and caspase-9 significantly reduced TNF-induced apoptosis in chondrogenic cells.
|
1136 |
20200974
|
Diabetes increased chondrocyte apoptosis through a mechanism that involved enhanced production of TNF-alpha, which stimulates chondrocyte apoptosis and upregulates mRNA levels of apoptotic genes through FOXO1 activation.
|
1137 |
20200974
|
TNF-alpha mediates diabetes-enhanced chondrocyte apoptosis during fracture healing and stimulates chondrocyte apoptosis through FOXO1.
|
1138 |
20200974
|
Tumor necrosis factor alpha (TNF-alpha) protein levels were assessed by ELISA and caspase-3 by bioactivity assay.
|
1139 |
20200974
|
In vitro studies investigated the proapoptotic transcription factor FOXO1 in regulating TNF-induced apoptosis of chondrogenic ATDC5 and C3H10T1/2 cells as representative of differentiated chondrocytes, which are important during endochondral ossification. mRNA profiling revealed an upregulation of gene sets related to apoptosis in the diabetic group on day 16 when cartilage resorption is active but not day 12 or day 22.
|
1140 |
20200974
|
This coincided with elevated TNF-alpha protein levels, chondrocyte apoptosis, enhanced caspase-3 activity, and increased FOXO1 nuclear translocation (p < .05).
|
1141 |
20200974
|
Silencing FOXO1 using siRNA in vitro significantly reduced TNF-induced apoptosis and caspase activity in differentiated chondrocytes.
|
1142 |
20200974
|
The mRNA levels of the proapoptotic genes caspase-3, caspase-8, caspase-9, and TRAIL were significantly reduced with silencing of FOXO1 in chondrocytic cells.
|
1143 |
20200974
|
Inhibiting caspase-8 and caspase-9 significantly reduced TNF-induced apoptosis in chondrogenic cells.
|
1144 |
20200974
|
Diabetes increased chondrocyte apoptosis through a mechanism that involved enhanced production of TNF-alpha, which stimulates chondrocyte apoptosis and upregulates mRNA levels of apoptotic genes through FOXO1 activation.
|
1145 |
20216988
|
Our results indicate that homocysteine releases Ca(2+) from agonist sensitive stores, enhances eIF2alpha phosphorylation at Ser(51) and activates caspase-3 and -9 independently of extracellular Ca(2+).
|
1146 |
20299359
|
Ex vivo, albumin induced caspase-12 activity and expression (protein and mRNA) and mRNA expression of the CCAT/enhancer-binding protein homologous protein in freshly isolated wild-type proximal tubules but not in catalase-overexpressing proximal tubules.
|
1147 |
20299359
|
In vitro, albumin stimulated activity of both caspase-12 and caspase-3 as well as expression of caspase-12 and CCAT/enhancer-binding protein homologous protein in a human proximal tubule cell line (HK-2).
|
1148 |
20299359
|
Furthermore, knockdown of caspase-12 with small interfering RNA reduced albumin-induced apoptosis in HK-2 cells.
|
1149 |
20358864
|
Pathological changes including autophagy and apoptosis in pancreas, kidney, spleen and thymus, accompanied with an accumulation of LC3-II, Beclin1 and Caspase-3 protein were observed.
|
1150 |
20361141
|
An excessive glucose supply to embryonic tissues leads to a state of oxidative stress, which affects the expression of genes encoding scavenging enzymes such as super oxide dismutase (SOD) and catastases and activates development genes such as PAX3, involved in neural tube defects.
|
1151 |
20361141
|
There is an increase of apoptotic Bax and caspase-3 proteins and a low expression of Bcl-Z ant apoptotic protein in embryos exposed to a diabetic environment.
|
1152 |
20369225
|
Differences between amyloid toxicity in alpha and beta cells in human and mouse islets and the role of caspase-3.
|
1153 |
20374430
|
To characterize the neuroprotective properties of GLP-1 and associated underlying mechanisms, we over-expressed the GLP-1 receptor (GLP-1R) on human neuroblastoma SH-SY5Y cells to generate a neuronal culture system featuring enhanced GLP-1R signaling.
|
1154 |
20374430
|
In GLP-1R over-expressing SH-SY5Y (SH-hGLP-1R#9) cells, GLP-1 and the long-acting agonist exendin-4 stimulated cell proliferation and increased cell viability by 2-fold at 24 h at physiologically relevant concentrations.
|
1155 |
20374430
|
This GLP-1R-dependent action was mediated via the protein kinase A and phosphoinositide 3-kinase signaling pathways, with the MAPK pathway playing a minor role.
|
1156 |
20374430
|
This involved amelioration of elevated caspase 3 activity, down-regulation of pro-apoptotic Bax and up-regulation of anti-apoptotic Bcl-2 protein.
|
1157 |
20374430
|
In the presence of 6-hydroxydopamine, GLP-1's ability to lower caspase-3 activity was abolished with the phosphoinositide 3-kinase inhibitor, LY2940002, and partly reduced with the protein kinase A inhibitor, H89.
|
1158 |
20374430
|
Hence, GLP-1R mediated neurotrophic and anti-apoptotic actions co-contribute to the neuroprotective property of GLP-1 in neuronal cell cultures, and reinforce the potential therapeutic value of GLP-1R agonists in neurodegenerative disorders involving oxidative stress.
|
1159 |
20374430
|
To characterize the neuroprotective properties of GLP-1 and associated underlying mechanisms, we over-expressed the GLP-1 receptor (GLP-1R) on human neuroblastoma SH-SY5Y cells to generate a neuronal culture system featuring enhanced GLP-1R signaling.
|
1160 |
20374430
|
In GLP-1R over-expressing SH-SY5Y (SH-hGLP-1R#9) cells, GLP-1 and the long-acting agonist exendin-4 stimulated cell proliferation and increased cell viability by 2-fold at 24 h at physiologically relevant concentrations.
|
1161 |
20374430
|
This GLP-1R-dependent action was mediated via the protein kinase A and phosphoinositide 3-kinase signaling pathways, with the MAPK pathway playing a minor role.
|
1162 |
20374430
|
This involved amelioration of elevated caspase 3 activity, down-regulation of pro-apoptotic Bax and up-regulation of anti-apoptotic Bcl-2 protein.
|
1163 |
20374430
|
In the presence of 6-hydroxydopamine, GLP-1's ability to lower caspase-3 activity was abolished with the phosphoinositide 3-kinase inhibitor, LY2940002, and partly reduced with the protein kinase A inhibitor, H89.
|
1164 |
20374430
|
Hence, GLP-1R mediated neurotrophic and anti-apoptotic actions co-contribute to the neuroprotective property of GLP-1 in neuronal cell cultures, and reinforce the potential therapeutic value of GLP-1R agonists in neurodegenerative disorders involving oxidative stress.
|
1165 |
20385228
|
We show here that Ex-4, 8-bromo-cAMP, the cAMP promoting agent forskolin, as well as activators of protein kinase A (PKA) and exchange protein activated by cAMP (Epac), all attenuated the effect of high glucose (20mM) on TxNIP level in the pancreatic beta-cell line Ins-1.
|
1166 |
20385228
|
Both PKA inhibition and Epac inhibition partially blocked the repressive effect of forskolin on TxNIP level.
|
1167 |
20385228
|
Finally, knockdown of TxNIP expression led to reduced caspase 3 expression levels and blunted response to forskolin treatment.
|
1168 |
20399771
|
Also, telmisartan significantly reduced the elevations of total gastric acid output, pepsin activity, gastric ulcer index and gastric mucosal tumor necrosis factor-alpha, nitric oxide, malondialdehyde and caspase-3 activity, and restored the depleted antioxidant defenses (reduced glutathione level, and superoxide dismutase and catalase activities) caused by indomethacin administration in diabetic rats.
|
1169 |
20399771
|
Immunohistochemical analysis revealed that telmisartan markedly attenuated the reduction in insulin content of pancreatic islet beta-cells, and prevented the indomethacin-induced overexpression of inducible nitric oxide synthase and nuclear factor-kappaB in gastric mucosa of diabetic rats.
|
1170 |
20418481
|
Accordingly, resveratrol significantly upregulates the expression of the Nrf2 target genes NAD(P)H:quinone oxidoreductase 1, gamma-glutamylcysteine synthetase, and heme oxygenase-1.
|
1171 |
20418481
|
The aforementioned effects of resveratrol were significantly attenuated by the small interfering RNA downregulation of Nrf2 or the overexpression of Kelch-like erythroid cell-derived protein 1, which inactivates Nrf2.
|
1172 |
20418481
|
In HFD-fed Nrf2(+/+) mice, resveratrol treatment attenuates oxidative stress (assessed by the Amplex red assay), improves acetylcholine-induced vasodilation, and inhibits apoptosis (assessed by measuring caspase-3 activity and DNA fragmentation) in branches of the femoral artery.
|
1173 |
20446237
|
Using a real-time PCR approach we investigated the mRNA expression levels of Caspase3, Caspase3 s, xIAP, Bad, and beta-actin in a panel of 79 thyroid tumours.
|
1174 |
20463052
|
The mitochondrial antioxidant N-t-butyl hydroxylamine blocked staurosporine-induced cytochrome c release and caspase-3 activation in iPLA(2)beta(-/-) islets.
|
1175 |
20493839
|
Western blotting was done for insulin receptor signaling and Akt and ELISA analyses for TNFalpha concentration and cleavage of caspase 3 at 2- and 8-months of diabetes.
|
1176 |
20496083
|
Hypoxia increases Sca-1/CD44 co-expression in murine mesenchymal stem cells and enhances their adipogenic differentiation potential.
|
1177 |
20496083
|
Prior exposure of MSCs to hypoxia led to a significant reduction of ex vivo expansion time, with significantly increased numbers of Sca-1(+) as well as Sca-1(+)/CD44(+)double-positive cells.
|
1178 |
20496083
|
Accordingly, the expression of adipocyte-specific genes, peroxisome proliferator activated receptor gamma (Ppargamma), lipoprotein lipase (Lpl) and fatty acid binding protein 4 (Fabp4) were significantly enhanced in hypoxia pre-exposed AT-MSCs.
|
1179 |
20496083
|
Hypoxia increases Sca-1/CD44 co-expression in murine mesenchymal stem cells and enhances their adipogenic differentiation potential.
|
1180 |
20496083
|
Prior exposure of MSCs to hypoxia led to a significant reduction of ex vivo expansion time, with significantly increased numbers of Sca-1(+) as well as Sca-1(+)/CD44(+)double-positive cells.
|
1181 |
20496083
|
Accordingly, the expression of adipocyte-specific genes, peroxisome proliferator activated receptor gamma (Ppargamma), lipoprotein lipase (Lpl) and fatty acid binding protein 4 (Fabp4) were significantly enhanced in hypoxia pre-exposed AT-MSCs.
|
1182 |
20501676
|
Changes in gene and protein expression of cytokines, CD8 markers, monocyte chemoattractant protein-1, inducible NO synthase, and caspase 3 were evaluated.
|
1183 |
20501676
|
However, six of 12 treated animals showed increased gene expression of IL-1beta, TNF-alpha, and CD8 markers in pancreas-draining lymph nodes, indicating immune cell activation.
|
1184 |
20505038
|
We observe no change in caspase-3 expression in the diabetic kidneys at these early time points; however, diabetic animals demonstrate reduced kidney connexin 43 and increased plasminogen activator inhibitor-1 expressions and increased senescence-associated beta-galactosidase activity in cortical tubules.
|
1185 |
20506110
|
PA-induced activation of CB(1)R is prevented by the treatment of AACOCF(3) (a cPLA(2) inhibitor), indomethacin and NS398 (a COX 2 inhibitors).
|
1186 |
20506110
|
Indeed, PA increased cPLA(2), and COX-2 but not COX-1.
|
1187 |
20506110
|
Furthermore, PA decreased GRP78 expression and induced increases in the endoplasmic reticulum (ER) stress signaling pathways p-PERK, p-eIF2α, p-ATF4, and CHOP, which were blocked by AM251 treatment.
|
1188 |
20506110
|
Moreover, PA increased the Bax/Bcl-2 ratio, cleaved PARP, and caspase-3 levels.
|
1189 |
20571744
|
At week 1, 2, 4, 12, 21 after STZ injection, plasma glucose concentration and the concentrations of insulin, creatine kinase MB (CK-MB), cardiac troponin I (cTnI) in serum were measured.
|
1190 |
20571744
|
Myocardial Trx and thioredoxin reductase (TR) activities, as well as caspase-3 activity, were determined by respective assay methods.
|
1191 |
20571744
|
Compared with those in NC group, the mRNA levels of Trx1, Trx2, TR1, TR2 in DM group decreased at week 4, and then increased in week 12.
|
1192 |
20571744
|
In DM group, the protein levels of Trx1, Trx2, TR1 and TR2 increased significantly at week 12.
|
1193 |
20573157
|
High glucose induces apoptosis in AC16 human cardiomyocytes via macrophage migration inhibitory factor and c-Jun N-terminal kinase.
|
1194 |
20573157
|
In the present study, AC16 human cardiomyocytes were cultured in the presence of 25 mmol/L glucose for 20, 30 and 60 min before being subjected to western blot analyses to determine MIF expression and c-Jun N-terminal kinase (JNK) activation.
|
1195 |
20573157
|
In addition, AC16 cells were pretreated with 2.5 μmol/L SP600125 (a JNK inhibitor), 40 μmol/L (s,r)-3-(4-hydroxyphenyl)-4,5-dihydro-5-isoxazole acetic acid methyl ester (ISO-1; an MIF antagonist) or 0.1% dimethylsulphoxide (DMSO; vehicle) for 1 h prior to exposure to 25 mmol/L glucose and culture for 72 h, followed by annexin V-fluorescein isothiocyanate/propidium iodide staining and flow cytometry analysis.
|
1196 |
20573157
|
Caspase 3 activity and phosphorylation of JNK were also analysed by western blotting. 3.
|
1197 |
20573157
|
The high concentration of glucose increased expression of endogenous MIF and JNK phosphorylation in AC16 cardiomyocytes.
|
1198 |
20573157
|
Furthermore, JNK phosphorylation was attenuated by inhibition of endogenous MIF. 4.
|
1199 |
20573157
|
In conclusion, myocardial cell apoptosis induced by high glucose involves the overexpression of MIF and activation of the JNK signalling pathway.
|
1200 |
20599916
|
Daily injections of F-FTS led to an increase in both the number and the migratory capacity of pancreatic Foxp3(+)CD4(+)CD25(+) Treg, while cleaved caspase 3 in the pancreas were significantly decreased, indicating reduced apoptosis.
|
1201 |
20654738
|
Voltage-dependent anion channel (VDAC), adenine nucleotide translocator (ANT), cyclophilin D (CypD), transcription factor A (Tfam), Bax, Bcl-2 contents, caspase-3 and -9 activities were determined.
|
1202 |
20654738
|
Additionally, endurance training reverted the hyperglycemia-induced CypD elevation, attenuating decrease of ANT, VDAC and Tfam.
|
1203 |
20654738
|
Moreover, training prevented the STZ-induced elevation in Bax, Bax-to-Bcl-2 ratio, caspase-3 and -9 and the increased Bcl-2.
|
1204 |
20654738
|
Voltage-dependent anion channel (VDAC), adenine nucleotide translocator (ANT), cyclophilin D (CypD), transcription factor A (Tfam), Bax, Bcl-2 contents, caspase-3 and -9 activities were determined.
|
1205 |
20654738
|
Additionally, endurance training reverted the hyperglycemia-induced CypD elevation, attenuating decrease of ANT, VDAC and Tfam.
|
1206 |
20654738
|
Moreover, training prevented the STZ-induced elevation in Bax, Bax-to-Bcl-2 ratio, caspase-3 and -9 and the increased Bcl-2.
|
1207 |
20658311
|
Ad-mIL-10 prevented IL-1β-mediated nitric oxide production from β cells in vitro as well as the suppression of β cells function as determined by glucose-stimulated insulin production.
|
1208 |
20658311
|
Furthermore, Ad-mIL-10 gene transfer led to a profound reduction of Fas-expressing β cells and caspase-3 activity which were induced by IL-1β and the apoptotic rates of Ad-mIL-10 group were decreased.
|
1209 |
20669273
|
The evaluation of insulin sensitivity demonstrated higher HOMA-insulin resistance indices, and lower M values (P < 0.001 and P < 0.05, respectively), while both the AIR and the insulinogenic index were lower in patients with SCA1 compared to controls (P < 0.001 and P < 0.05, respectively).
|
1210 |
20685070
|
Erythropoietin (EPO) can induce a series of cytoprotective effects in many non-hematopoietic tissues through interaction with the erythropoietin receptor (EPOR), but whether EPO can prevent the overproduction of reactive oxygen species (ROS) and apoptosis in diabetes remains unclear.
|
1211 |
20685070
|
Here, we report that renal tubular cells possess EPOR and that EPO reduces high glucose-induced oxidative stress in renal tubular cells.
|
1212 |
20685070
|
Further, we found that EPO inhibited high glucose-induced renal tubular cell apoptosis and that this protective effect was dependent on reduction of Bax/caspase-3 expression as well as elevation of Bcl-2 expression.
|
1213 |
20685070
|
Our results suggest that EPO can inhibit high glucose-induced renal tubular cell apoptosis through direct effect on anti-oxidative stress and that EPOR may play a key role in this process.
|
1214 |
20693577
|
ACLY inhibitors alone were sufficient to induce CCAAT/enhancer-binding protein homologues protein (CHOP)-dependent ER stress and caspase-3-dependent apoptosis.
|
1215 |
20798690
|
We presently evaluated the role of the myeloid cell leukemia sequence 1 (Mcl-1), an antiapoptotic protein of the Bcl-2 family, in β-cells following exposure to well-defined β-cell death effectors, for example, pro-inflammatory cytokines, palmitate and chemical endoplasmic reticulum (ER) stressors.
|
1216 |
20798690
|
All cytotoxic stresses rapidly and preferentially decreased Mcl-1 protein expression as compared with the late effect observed on the other antiapoptotic proteins, Bcl-2 and Bcl-xL.
|
1217 |
20798690
|
This was due to ER stress-mediated inhibition of translation through eIF2α phosphorylation for palmitate and ER stressors and through the combined action of translation inhibition and JNK activation for cytokines.
|
1218 |
20798690
|
Knocking down Mcl-1 using small interference RNAs increased apoptosis and caspase-3 cleavage induced by cytokines, palmitate or thapsigargin, whereas Mcl-1 overexpression partly prevented Bax translocation to the mitochondria, cytochrome c release, caspase-3 cleavage and apoptosis induced by the β-cell death effectors.
|
1219 |
20919961
|
We, therefore, assessed the effect of ectopically introduced Reg2 on Stz-induced apoptosis in MIN6 mouse insulinoma cells and report here that Reg2 protects MIN6 cells from Stz-induced apoptosis by attenuating its ability to disrupt mitochondrial membrane integrity, activate caspase-3 and promote poly-ADP ribose polymerase cleavage, and induce apoptosis.
|
1220 |
20919961
|
These changes correlated with suppression of c-jun N-terminal kinase (JNK) phosphorylation by Stz.
|
1221 |
20919961
|
These data demonstrate that Reg2 protects insulin-producing cells against Stz-induced apoptosis by interfering with its cytotoxic signaling upstream of the intrinsic proapoptotic events by preventing its ability to inactivate JNK.
|
1222 |
20933054
|
This study demonstrates that pro-inflammatory cytokines strongly modified the expression of the anti-apoptotic protein Bcl-2 and the pro-apoptotic BH3-only proteins Bad, Bim, and Bid in primary rat islets and insulin-producing RINm5F cells.
|
1223 |
20933054
|
Overexpression of mitochondrially located catalase (MitoCatalase) specifically increased basal Bcl-2 and decreased basal Bax expression, suppressed cytokine-mediated reduction of Bcl-2, and thereby prevented the release of cytochrome c, Smac/DIABLO and the activation of caspase-9 and -3.
|
1224 |
20933054
|
Thus, cytokine-mediated decrease of Bcl-2 expression and the sequentially changed Bax/Bcl-2 ratio are responsible for the release of pro-apoptotic mitochondrial factors, activation of caspase-9, and ultimately caspase-3.
|
1225 |
20933054
|
These results indicate that activation of the intrinsic/mitochondrial apoptosis pathway is essential for cytokine-induced beta cell death and the mitochondrial generation of reactive oxygen species, in particular mitochondrial hydrogen peroxide, differentially regulates the Bax/Bcl-2 ratio.
|
1226 |
20943855
|
Phagocyte-like NADPH oxidase promotes cytokine-induced mitochondrial dysfunction in pancreatic β-cells: evidence for regulation by Rac1.
|
1227 |
20943855
|
To address this, insulin-secreting INS 832/13 cells were treated with cytomix (IL-1β, IFN-γ, and TNF-α; 10 ng/ml each) for different time intervals (0-24 h).
|
1228 |
20943855
|
A significant, time-dependent increase in NADPH oxidase activation/intracellular ROS production, p47(phox) subunit, but not p67(phox) subunit, expression of the phagocyte-like NADPH oxidase were demonstrable under these conditions.
|
1229 |
20943855
|
Furthermore, siRNA-p47(phox) transfection or exposure of INS 832/13 cells to apocynin, a selective inhibitor of NADPH oxidase, markedly attenuated cytomix-induced ROS generation in these cells.
|
1230 |
20943855
|
Cytomix-mediated mitochondrial dysfunction in INS 832/13 cells was evident by a significant loss of mitochondrial membrane potential (MMP) and upregulated caspase 3 activity.
|
1231 |
20943855
|
Cytomix treatment also caused a transient (within 15 min) activation of Rac1, a component of the NADPH oxidase holoenzyme.
|
1232 |
20952489
|
Therefore, the present study addressed the effects of obesity-induced insulin resistance on the activity of the ubiquitin ligases, nuclear factor-B, p38 MAPK and phosphoinositide 3-kinase signalling pathways in the gastrocnemius muscle and compared these with muscle of standard chow-fed control rats.
|
1233 |
20952489
|
Blood analysis was conducted to determine the impact of the model of obesity on circulating insulin, glucose, free fatty acids, TNF-α and angiotensin II concentrations.
|
1234 |
20952489
|
Significant increases in the ubiquitin ligase and MuRF-1, as well as in caspase-3 and poly-ADP-ribose polymerase cleavage were observed in the muscle of obese animals compared with the control rats.
|
1235 |
20956533
|
Blockage of CHOP translation resulted in reduction of downstream caspase-3 cleavage and near-complete protection of cells from apoptotic death.
|
1236 |
21099337
|
The number of apoptosis (caspase-3) positive β-cells was reduced after three months, whereas there was no difference in proliferation (Ki-67) positive cells, although these were generally rarely observed.
|
1237 |
21145380
|
Here, we found that iAs significantly decreased insulin secretion and cell viability, and increased ROS and MDA formation in pancreatic β-cell-derived RIN-m5F cells. iAs also induced the increases in sub-G1 hypodiploids, annexin V-Cy3 binding, and caspase-3 activity in RIN-m5F cells, indicating that iAs could induce β-cell apoptosis.
|
1238 |
21145380
|
Moreover, iAs induced MAPKs activation, mitochondria dysfunction, p53 up-regulation, Bcl-2 and Mdm-2 down-regulation, PARP, and caspase cascades, which displayed features of mitochondria-dependent apoptotic signals.
|
1239 |
21145380
|
In addition, exposure of RIN-m5F cells to iAs, could trigger ER stress as indicated by the enhancement in ER stress-related molecules induction (such as GRP78, GRP94, CHOP, and XBP1), procaspase-12 cleavage, and calpain activation.
|
1240 |
21151615
|
Shen-Fu injection preconditioning inhibits myocardial ischemia-reperfusion injury in diabetic rats: activation of eNOS via the PI3K/Akt pathway.
|
1241 |
21151615
|
SFI preconditioning significantly decreased infarct size, apoptosis, caspase-3 protein expression, MDA level in myocardial tissues, and plasma level of CK and LDH but increased p-Akt, p-eNOS, bcl-2 protein expression, and SOD activity compared to I/R group.
|
1242 |
21153483
|
The apoptosis rate and caspase-3 activity were remarkably increased, and insulin secretion response to glucose was impaired severely by exposure to IL-1β/IFN-γ for 48 h compared to control cells, whereas apoptosis rate and caspase-3 activity were significantly decreased in cells with treatment of rosiglitazone (RGZ) or pioglitazone (PIG), and the capacity for insulin secretion response to glucose was recovered.
|
1243 |
21153483
|
Additionally, the enhancement of PPARγ expression by treatment with TZDs inhibited the expression of caspase 3 in IL-1β/IFN-γ-induced NIT-cells.
|
1244 |
21153483
|
The apoptosis rate and caspase-3 activity were remarkably increased, and insulin secretion response to glucose was impaired severely by exposure to IL-1β/IFN-γ for 48 h compared to control cells, whereas apoptosis rate and caspase-3 activity were significantly decreased in cells with treatment of rosiglitazone (RGZ) or pioglitazone (PIG), and the capacity for insulin secretion response to glucose was recovered.
|
1245 |
21153483
|
Additionally, the enhancement of PPARγ expression by treatment with TZDs inhibited the expression of caspase 3 in IL-1β/IFN-γ-induced NIT-cells.
|
1246 |
21173238
|
In this study, we identify and isolate a subpopulation of adipogenic progenitors (Sca-1(+)/CD45(-)/Mac1(-); referred to as Sca-1(+) progenitor cells, ScaPCs) residing in murine brown fat, white fat, and skeletal muscle.
|
1247 |
21173238
|
Importantly, although the ScaPCs from interscapular brown adipose tissue (BAT) are constitutively committed brown-fat progenitors, Sca-1(+) cells from skeletal muscle and subcutaneous white fat are highly inducible to differentiate into brown-like adipocytes upon stimulation with bone morphogenetic protein 7 (BMP7).
|
1248 |
21173238
|
In this study, we identify and isolate a subpopulation of adipogenic progenitors (Sca-1(+)/CD45(-)/Mac1(-); referred to as Sca-1(+) progenitor cells, ScaPCs) residing in murine brown fat, white fat, and skeletal muscle.
|
1249 |
21173238
|
Importantly, although the ScaPCs from interscapular brown adipose tissue (BAT) are constitutively committed brown-fat progenitors, Sca-1(+) cells from skeletal muscle and subcutaneous white fat are highly inducible to differentiate into brown-like adipocytes upon stimulation with bone morphogenetic protein 7 (BMP7).
|
1250 |
21177833
|
Integrin {alpha}3, but not {beta}1, regulates islet cell survival and function via PI3K/Akt signaling pathways.
|
1251 |
21177833
|
Previously, we have shown that human fetal islet and INS-1 cells highly express α3β1-integrin and that collagens I and IV significantly enhance their survival and function; in addition, blocking β1 function in the fetal islet cells decreased adhesion on collagen I and increased apoptosis.
|
1252 |
21177833
|
Perturbing α3 function in human islet or INS-1 cells resulted in significant decreases in cell function (adhesion, spreading, proliferation and Pdx1 and insulin expression/secretion), primarily on collagen IV.
|
1253 |
21177833
|
A significant decrease in focal adhesion kinase and ERK1/2 phosphorylation and increased caspase3 cleavage were observed on both collagens.
|
1254 |
21177833
|
Interestingly, only α3 blockade reduced expression of phospho-Akt and members of its downstream signaling cascades (glycogen synthase kinase β and X-linked inhibitor of apoptosis), demonstrating a specific effect of α3 on the phosphatidylinositol 3-kinase/Akt pathway.
|
1255 |
21207218
|
Treadmill exercise suppresses muscle cell apoptosis by increasing nerve growth factor levels and stimulating p-phosphatidylinositol 3-kinase activation in the soleus of diabetic rats.
|
1256 |
21207218
|
We investigated the effects of treadmill exercise performed regularly for 6 weeks on the levels of nerve growth factor (NGF), tyrosine kinase A and p75 receptors, phosphatidylinositol 3-kinase (PI3-K), mitogen-activated protein kinase/extracellular signal-regulated kinase (Erk) 1,2, cyclic AMP response element-binding protein (CREB), and caspase-3 in the soleus of rats with streptozotocin (STZ)-induced diabetes.
|
1257 |
21207218
|
The protein level of NGF significantly increased in the NEG and DEG (p < 0.001), whereas the levels of tyrosine kinase A and p75 receptors significantly increased in the NEG (p < 0.001).
|
1258 |
21244366
|
Our findings showed that (i) AGEs induced HUVEC apoptosis and up-regulated the expression of caspase-3 activation and lactadherin and reduced the phosphorylation of GSK3β (glycogen synthase kinase 3β) at baseline.
|
1259 |
21244366
|
(ii) Treatment of HUVEC with GSPB2 significantly inhibited the cell apoptosis and the expression of caspase-3 activation and lactadherin induced by AGEs.
|
1260 |
21244366
|
Our findings showed that (i) AGEs induced HUVEC apoptosis and up-regulated the expression of caspase-3 activation and lactadherin and reduced the phosphorylation of GSK3β (glycogen synthase kinase 3β) at baseline.
|
1261 |
21244366
|
(ii) Treatment of HUVEC with GSPB2 significantly inhibited the cell apoptosis and the expression of caspase-3 activation and lactadherin induced by AGEs.
|
1262 |
21252113
|
Furthermore, troxerutin significantly inhibited the activation of c-jun N-terminal kinase 1 and IκB kinase β/nuclear factor-κB induced by endoplasmic reticulum stress and enhanced insulin signalling pathway, which prevented obesity, restored normal levels of blood glucose, fatty acids and cholesterol and increased the phosphorylation of cyclic adenosine monophosphate response element-binding protein and the expression levels of c-fos in the hippocampus.
|
1263 |
21252113
|
Moreover, troxerutin significantly inhibited endoplasmic reticulum stress-induced apoptosis and decreased the activation of caspase-12 and caspase-3, and reduced the mean optical density of the terminal deoxyribonucleotidyl transferase-mediated dUTP-digoxigenin nick end label-positive cells in the hippocampus.
|
1264 |
21269661
|
The effects of angiotensin-II receptor blockers on podocyte damage and glomerular apoptosis in a rat model of experimental streptozotocin-induced diabetic nephropathy.
|
1265 |
21269661
|
The aim of the study was to determine in a rat model of streptozotocin-induced diabetic nephropathy the expression of: WT-1 (for podocyte loss in the glomerulus), TGF-beta 1 (for tissue damage), caspase-3 and bax (for glomerular apoptosis) and the possible protective effects of an angiotensin II type 1 receptor blocker.
|
1266 |
21269661
|
We conclude that the decrease in the number of podocytes is an early marker of diabetic nephropathy, AT1 receptor blocker has renoprotective effects on the regulation of renal hemodynamics and on the control of tissue damage by preventing podocyte loss, which leads to decrease of bax and caspase-3 expressions of apoptosis related proteins, and may prevent glomerular cell apoptosis via angiotensin II.
|
1267 |
21269661
|
The effects of angiotensin-II receptor blockers on podocyte damage and glomerular apoptosis in a rat model of experimental streptozotocin-induced diabetic nephropathy.
|
1268 |
21269661
|
The aim of the study was to determine in a rat model of streptozotocin-induced diabetic nephropathy the expression of: WT-1 (for podocyte loss in the glomerulus), TGF-beta 1 (for tissue damage), caspase-3 and bax (for glomerular apoptosis) and the possible protective effects of an angiotensin II type 1 receptor blocker.
|
1269 |
21269661
|
We conclude that the decrease in the number of podocytes is an early marker of diabetic nephropathy, AT1 receptor blocker has renoprotective effects on the regulation of renal hemodynamics and on the control of tissue damage by preventing podocyte loss, which leads to decrease of bax and caspase-3 expressions of apoptosis related proteins, and may prevent glomerular cell apoptosis via angiotensin II.
|
1270 |
21273665
|
Body weight and biochemical parameters (glucose, triglycerides, cholesterol), insulin and adipokines (leptin, adiponectin) were monitored.
|
1271 |
21273665
|
The microarray studies revealed that HF diet down-regulated genes related to angiogenesis (Nos3, Kdr) and up-regulated genes connected with apoptosis (activators of caspase 3, proapoptotic genes Bcl2) and proinflammatory pathway (NfκB pathway, Tnfα).
|
1272 |
21278354
|
We show that BM Lin(-)Sca1(+)c-Kit(+) cells express Hoxb4-YFP and demonstrate functionally in the long-term repopulation assay that definitive HSCs express Hoxb4.
|
1273 |
21278354
|
Similarly, aorta-gonad-mesonephrous-derived CD45(+)CD144(+) cells, enriched for HSCs, express Hoxb4.
|
1274 |
21289215
|
The tuberin/mTOR pathway promotes apoptosis of tubular epithelial cells in diabetes.
|
1275 |
21289215
|
Because the tuberin/mTOR pathway can modulate apoptosis, we studied the role of this pathway in apoptosis in type I diabetes and in cultured proximal tubular epithelial (PTE) cells exposed to HG.
|
1276 |
21289215
|
Induction of diabetes also increased phosphorylation of tuberin in association with mTOR activation (measured by p70S6K phosphorylation), inactivation of Bcl-2, increased cytosolic cytochrome c expression, activation of caspase 3, and cleavage of PARP; insulin treatment prevented these changes.
|
1277 |
21289215
|
In vitro, exposure of PTE cells to HG increased phosphorylation of tuberin and p70S6K, phosphorylation of Bcl-2, expression of cytosolic cytochrome c, and caspase 3 activity.
|
1278 |
21289215
|
High glucose induced translocation of the caspase substrate YY1 from the cytoplasm to the nucleus and enhanced cleavage of PARP.
|
1279 |
21289215
|
Furthermore, gene silencing of tuberin with siRNA decreased cleavage of PARP.
|
1280 |
21289215
|
These data show that the tuberin/mTOR pathway promotes apoptosis of tubular epithelial cells in diabetes, mediated in part by cleavage of PARP by YY1.
|
1281 |
21289215
|
The tuberin/mTOR pathway promotes apoptosis of tubular epithelial cells in diabetes.
|
1282 |
21289215
|
Because the tuberin/mTOR pathway can modulate apoptosis, we studied the role of this pathway in apoptosis in type I diabetes and in cultured proximal tubular epithelial (PTE) cells exposed to HG.
|
1283 |
21289215
|
Induction of diabetes also increased phosphorylation of tuberin in association with mTOR activation (measured by p70S6K phosphorylation), inactivation of Bcl-2, increased cytosolic cytochrome c expression, activation of caspase 3, and cleavage of PARP; insulin treatment prevented these changes.
|
1284 |
21289215
|
In vitro, exposure of PTE cells to HG increased phosphorylation of tuberin and p70S6K, phosphorylation of Bcl-2, expression of cytosolic cytochrome c, and caspase 3 activity.
|
1285 |
21289215
|
High glucose induced translocation of the caspase substrate YY1 from the cytoplasm to the nucleus and enhanced cleavage of PARP.
|
1286 |
21289215
|
Furthermore, gene silencing of tuberin with siRNA decreased cleavage of PARP.
|
1287 |
21289215
|
These data show that the tuberin/mTOR pathway promotes apoptosis of tubular epithelial cells in diabetes, mediated in part by cleavage of PARP by YY1.
|
1288 |
21331776
|
Inducible nitric oxide synthase (iNOS) is an essential mediator in diabetic vascular lesions and known to be regulated by activation of Ca(2+)/calmodulin-dependent protein kinase II (CaMKII).
|
1289 |
21331776
|
The aim of this study was to investigate whether CaMKII affects iNOS-mediated pericyte death in the retina of diabetic mice with early stage disease.
|
1290 |
21331776
|
Total- and phospho-CaMKII, iNOS, and active caspase-3 protein levels were assessed by Western blotting, and CaMKII activity was measured by kinase assay. iNOS-related pericyte death was assessed by double immunofluorescent staining for iNOS and α-smooth muscle actin, followed by the TUNEL assay.
|
1291 |
21331776
|
Autocamtide-2-related inhibitory peptide (AIP), a specific inhibitor of CaMKII, was injected into the right vitreous 2 days before sacrifice of mice, to examine the effect of CaMKII inactivation in diabetic retinas.
|
1292 |
21331776
|
The levels of total- and phospho-CaMKII, iNOS, and active caspase-3 protein, and CaMKII activity were significantly increased in the diabetic retinas compared with those of control retinas.
|
1293 |
21331776
|
However, inactivation of CaMKII by AIP treatment inhibited all these changes, which was accompanied by less pericyte loss.
|
1294 |
21331776
|
Our results demonstrate that CaMKII contributes to iNOS-related death of pericytes in the diabetic retina and that inactivation of this enzyme may be a potential treatment for retinal vascular lesion.
|
1295 |
21331776
|
Inducible nitric oxide synthase (iNOS) is an essential mediator in diabetic vascular lesions and known to be regulated by activation of Ca(2+)/calmodulin-dependent protein kinase II (CaMKII).
|
1296 |
21331776
|
The aim of this study was to investigate whether CaMKII affects iNOS-mediated pericyte death in the retina of diabetic mice with early stage disease.
|
1297 |
21331776
|
Total- and phospho-CaMKII, iNOS, and active caspase-3 protein levels were assessed by Western blotting, and CaMKII activity was measured by kinase assay. iNOS-related pericyte death was assessed by double immunofluorescent staining for iNOS and α-smooth muscle actin, followed by the TUNEL assay.
|
1298 |
21331776
|
Autocamtide-2-related inhibitory peptide (AIP), a specific inhibitor of CaMKII, was injected into the right vitreous 2 days before sacrifice of mice, to examine the effect of CaMKII inactivation in diabetic retinas.
|
1299 |
21331776
|
The levels of total- and phospho-CaMKII, iNOS, and active caspase-3 protein, and CaMKII activity were significantly increased in the diabetic retinas compared with those of control retinas.
|
1300 |
21331776
|
However, inactivation of CaMKII by AIP treatment inhibited all these changes, which was accompanied by less pericyte loss.
|
1301 |
21331776
|
Our results demonstrate that CaMKII contributes to iNOS-related death of pericytes in the diabetic retina and that inactivation of this enzyme may be a potential treatment for retinal vascular lesion.
|
1302 |
21354306
|
Insulin receptor substrate-1 and -2 mediate resistance to glucose-induced caspase-3 activation in human neuroblastoma cells.
|
1303 |
21354306
|
Insulin and insulin-like growth factor-1 (IGF-1) receptor signaling inhibits glucose-induced caspase-3 activation and apoptotic cell death.
|
1304 |
21354306
|
Even though all IRS proteins have similar function and structure, recent data suggest different actions of IRS-1 and IRS-2 in mediating their anti-apoptotic effects in glucose neurotoxicity.
|
1305 |
21354306
|
We therefore investigated the role of IRS-1/-2 in glucose-induced caspase-3 activation using human neuroblastoma cells.
|
1306 |
21354306
|
Overexpression of IRS-1 or IRS-2 caused complete resistance to glucose-induced caspase-3 cleavage.
|
1307 |
21354306
|
Inhibition of PI3-kinase reversed this protective effect of IRS-1 or IRS-2.
|
1308 |
21354306
|
IRS overexpression increased MnSOD abundance as well as BAD phosphorylation while Bim and BAX levels remained unchanged.
|
1309 |
21354306
|
Since Akt promotes cell survival at least partially via phosphorylation and inhibition of downstream forkhead box-O (FoxO) transcription factors, we generated neuroblastoma cells stably overexpressing a dominant negative mutant of FoxO1 mimicking activation of the insulin/IGF-1 pathway on FoxO-mediated transcription.
|
1310 |
21354306
|
Using these cells we showed that FoxO1 is not involved in neuronal protection mediated by increased IRS-1/-2 expression.
|
1311 |
21354306
|
Thus, overexpression of both IRS-1 and IRS-2 induces complete resistance to glucose-induced caspase-3 activation via PI3-kinase mediated BAD phosphorylation and MnSOD expression independent of FoxO1.
|
1312 |
21354306
|
Insulin receptor substrate-1 and -2 mediate resistance to glucose-induced caspase-3 activation in human neuroblastoma cells.
|
1313 |
21354306
|
Insulin and insulin-like growth factor-1 (IGF-1) receptor signaling inhibits glucose-induced caspase-3 activation and apoptotic cell death.
|
1314 |
21354306
|
Even though all IRS proteins have similar function and structure, recent data suggest different actions of IRS-1 and IRS-2 in mediating their anti-apoptotic effects in glucose neurotoxicity.
|
1315 |
21354306
|
We therefore investigated the role of IRS-1/-2 in glucose-induced caspase-3 activation using human neuroblastoma cells.
|
1316 |
21354306
|
Overexpression of IRS-1 or IRS-2 caused complete resistance to glucose-induced caspase-3 cleavage.
|
1317 |
21354306
|
Inhibition of PI3-kinase reversed this protective effect of IRS-1 or IRS-2.
|
1318 |
21354306
|
IRS overexpression increased MnSOD abundance as well as BAD phosphorylation while Bim and BAX levels remained unchanged.
|
1319 |
21354306
|
Since Akt promotes cell survival at least partially via phosphorylation and inhibition of downstream forkhead box-O (FoxO) transcription factors, we generated neuroblastoma cells stably overexpressing a dominant negative mutant of FoxO1 mimicking activation of the insulin/IGF-1 pathway on FoxO-mediated transcription.
|
1320 |
21354306
|
Using these cells we showed that FoxO1 is not involved in neuronal protection mediated by increased IRS-1/-2 expression.
|
1321 |
21354306
|
Thus, overexpression of both IRS-1 and IRS-2 induces complete resistance to glucose-induced caspase-3 activation via PI3-kinase mediated BAD phosphorylation and MnSOD expression independent of FoxO1.
|
1322 |
21354306
|
Insulin receptor substrate-1 and -2 mediate resistance to glucose-induced caspase-3 activation in human neuroblastoma cells.
|
1323 |
21354306
|
Insulin and insulin-like growth factor-1 (IGF-1) receptor signaling inhibits glucose-induced caspase-3 activation and apoptotic cell death.
|
1324 |
21354306
|
Even though all IRS proteins have similar function and structure, recent data suggest different actions of IRS-1 and IRS-2 in mediating their anti-apoptotic effects in glucose neurotoxicity.
|
1325 |
21354306
|
We therefore investigated the role of IRS-1/-2 in glucose-induced caspase-3 activation using human neuroblastoma cells.
|
1326 |
21354306
|
Overexpression of IRS-1 or IRS-2 caused complete resistance to glucose-induced caspase-3 cleavage.
|
1327 |
21354306
|
Inhibition of PI3-kinase reversed this protective effect of IRS-1 or IRS-2.
|
1328 |
21354306
|
IRS overexpression increased MnSOD abundance as well as BAD phosphorylation while Bim and BAX levels remained unchanged.
|
1329 |
21354306
|
Since Akt promotes cell survival at least partially via phosphorylation and inhibition of downstream forkhead box-O (FoxO) transcription factors, we generated neuroblastoma cells stably overexpressing a dominant negative mutant of FoxO1 mimicking activation of the insulin/IGF-1 pathway on FoxO-mediated transcription.
|
1330 |
21354306
|
Using these cells we showed that FoxO1 is not involved in neuronal protection mediated by increased IRS-1/-2 expression.
|
1331 |
21354306
|
Thus, overexpression of both IRS-1 and IRS-2 induces complete resistance to glucose-induced caspase-3 activation via PI3-kinase mediated BAD phosphorylation and MnSOD expression independent of FoxO1.
|
1332 |
21354306
|
Insulin receptor substrate-1 and -2 mediate resistance to glucose-induced caspase-3 activation in human neuroblastoma cells.
|
1333 |
21354306
|
Insulin and insulin-like growth factor-1 (IGF-1) receptor signaling inhibits glucose-induced caspase-3 activation and apoptotic cell death.
|
1334 |
21354306
|
Even though all IRS proteins have similar function and structure, recent data suggest different actions of IRS-1 and IRS-2 in mediating their anti-apoptotic effects in glucose neurotoxicity.
|
1335 |
21354306
|
We therefore investigated the role of IRS-1/-2 in glucose-induced caspase-3 activation using human neuroblastoma cells.
|
1336 |
21354306
|
Overexpression of IRS-1 or IRS-2 caused complete resistance to glucose-induced caspase-3 cleavage.
|
1337 |
21354306
|
Inhibition of PI3-kinase reversed this protective effect of IRS-1 or IRS-2.
|
1338 |
21354306
|
IRS overexpression increased MnSOD abundance as well as BAD phosphorylation while Bim and BAX levels remained unchanged.
|
1339 |
21354306
|
Since Akt promotes cell survival at least partially via phosphorylation and inhibition of downstream forkhead box-O (FoxO) transcription factors, we generated neuroblastoma cells stably overexpressing a dominant negative mutant of FoxO1 mimicking activation of the insulin/IGF-1 pathway on FoxO-mediated transcription.
|
1340 |
21354306
|
Using these cells we showed that FoxO1 is not involved in neuronal protection mediated by increased IRS-1/-2 expression.
|
1341 |
21354306
|
Thus, overexpression of both IRS-1 and IRS-2 induces complete resistance to glucose-induced caspase-3 activation via PI3-kinase mediated BAD phosphorylation and MnSOD expression independent of FoxO1.
|
1342 |
21354306
|
Insulin receptor substrate-1 and -2 mediate resistance to glucose-induced caspase-3 activation in human neuroblastoma cells.
|
1343 |
21354306
|
Insulin and insulin-like growth factor-1 (IGF-1) receptor signaling inhibits glucose-induced caspase-3 activation and apoptotic cell death.
|
1344 |
21354306
|
Even though all IRS proteins have similar function and structure, recent data suggest different actions of IRS-1 and IRS-2 in mediating their anti-apoptotic effects in glucose neurotoxicity.
|
1345 |
21354306
|
We therefore investigated the role of IRS-1/-2 in glucose-induced caspase-3 activation using human neuroblastoma cells.
|
1346 |
21354306
|
Overexpression of IRS-1 or IRS-2 caused complete resistance to glucose-induced caspase-3 cleavage.
|
1347 |
21354306
|
Inhibition of PI3-kinase reversed this protective effect of IRS-1 or IRS-2.
|
1348 |
21354306
|
IRS overexpression increased MnSOD abundance as well as BAD phosphorylation while Bim and BAX levels remained unchanged.
|
1349 |
21354306
|
Since Akt promotes cell survival at least partially via phosphorylation and inhibition of downstream forkhead box-O (FoxO) transcription factors, we generated neuroblastoma cells stably overexpressing a dominant negative mutant of FoxO1 mimicking activation of the insulin/IGF-1 pathway on FoxO-mediated transcription.
|
1350 |
21354306
|
Using these cells we showed that FoxO1 is not involved in neuronal protection mediated by increased IRS-1/-2 expression.
|
1351 |
21354306
|
Thus, overexpression of both IRS-1 and IRS-2 induces complete resistance to glucose-induced caspase-3 activation via PI3-kinase mediated BAD phosphorylation and MnSOD expression independent of FoxO1.
|
1352 |
21484413
|
HFSCs possess a high self-renewal capacity and share characteristics of putative HF epithelial stem cells, such as the expression of Lgr6, cytokeratins (Ck18, Ck19), and multipotent stem cell markers (Sca-1, Bcrp1, nestin, P75NTR).
|
1353 |
21487521
|
Similarly, activities of NADPH oxidase and caspase-3 changed in parallel with mRNA levels.
|
1354 |
21491265
|
The molecular targets involved in chemoprevention like the inhibition of NF-κB activation via impairing nuclear translocation, suppresses cIAP1 expression, increases caspase-3/7 activation, arrests cell cycle in G2 + M phases, up-regulates Cytochrome-c, Apaf-1, activates PI3K/Akt/I kappaB kinases IKK, suppresses cell proliferation, and inducts apoptosis and chromatin condensation.
|
1355 |
21491265
|
Furthermore, inhibition of phosphorylation of three mitogen-activated protein kinases (MAPKs), extracellular signal-regulated kinases 1 and 2 (ERK1/2), and c-Jun N-terminal kinase (JNK) are also discussed.
|
1356 |
21527748
|
Acrolein inhalation prevents vascular endothelial growth factor-induced mobilization of Flk-1+/Sca-1+ cells in mice.
|
1357 |
21537829
|
In this study, we report that a mitochondrial fission modulator, dynamin-related protein 1 (DRP-1), plays an important role in ER stress-induced β-cell apoptosis.
|
1358 |
21537829
|
We further demonstrated that the mitochondrial membrane potential decreased, and that cytochrome c release, caspase-3 activation and generation of reactive oxygen species (ROS) were enhanced by induction of DRP-1 WT, but prevented by DRP-1 K38A in pancreatic β-cells under ER stress conditions.
|
1359 |
21549702
|
Right atrial tissue of these patients was used to determine the expression of neuropeptide Y, the receptors 1-5, and leptin by immunoblotting, real-time PCR and immunofluorescence.
|
1360 |
21549702
|
The levels of caspase-3, endostatin and angiostatin were significantly elevated in diabetic patients (P=0.003, P=0.008, P=0.01 respectively).
|
1361 |
21573217
|
Insulin-induced IR-autophosphorylation (HepG2, L6, INS1E), Akt-Ser(473), ERK1/2-Thr(202)/Tyr(204) and GSK3-beta Ser(9) phosphorylation (HepG2, L6), PEPCK mRNA levels (HepG2) and 2-deoxy-D-glucose uptake (L6) was studied.
|
1362 |
21573217
|
GLUT 4 mRNA (L6), insulin secretion and caspase-3 activation (INS1E) were also investigated.
|
1363 |
21573217
|
Insulin-induced reduction of PEPCK mRNA was progressively lower in untransfected, HepG2-K and HepG2-Q cells (65%, 54%, 23%).
|
1364 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1365 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1366 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1367 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1368 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1369 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1370 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1371 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1372 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1373 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1374 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1375 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1376 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1377 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1378 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1379 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1380 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1381 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1382 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1383 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1384 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1385 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1386 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1387 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1388 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1389 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1390 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1391 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1392 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1393 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1394 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1395 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1396 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1397 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1398 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1399 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1400 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1401 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1402 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1403 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1404 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1405 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1406 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1407 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1408 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1409 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1410 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1411 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1412 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1413 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1414 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1415 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1416 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1417 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1418 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1419 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1420 |
21691071
|
Caspase 3 is activated through caspase 8 instead of caspase 9 during H2O2-induced apoptosis in HeLa cells.
|
1421 |
21691071
|
We measured the activation dynamics of caspase 3 and caspase 9 based on two reporter systems, SCAT 3 and SCAT 9.
|
1422 |
21691071
|
We found that caspase 3 activation was earlier than that of caspase 9 following H(2)O(2) treatment.
|
1423 |
21691071
|
Caspase 3 was activated rapidly, reaching a maximum in 12±3 min, while the average duration of caspase 9 activation was 21±3 min.
|
1424 |
21691071
|
When cells were pretreated with Z-LEHD-fmk, a caspase 9 specific inhibitor, caspase 3 activation and apoptosis by H(2)O(2) treatment were little affected, although the caspase 9 activation was completely inhibited.
|
1425 |
21691071
|
When cells were pretreated with Z-DEVD-fmk, a caspase 3 specific inhibitor, the activation of both caspase 3 and caspase 9, as well as apoptosis, were inhibited.
|
1426 |
21691071
|
When cells were pretreated with Z-IETD-fmk, a caspase 8 specific inhibitor, the activation of caspase 3 and caspase 9 were significantly delayed.
|
1427 |
21691071
|
Our results suggest that, during H H(2)O(2)-induced apoptosis, caspase 3 is activated directly through caspase 8 and is not through the mitochondria-dependent caspase 9 activation.
|
1428 |
21719578
|
To this end, we examined the role of cytochrome c in pancreatic β-cells under homeostatic conditions and in diabetes models, including those induced by streptozotocin (STZ) and c-Myc.
|
1429 |
21719578
|
Previous studies have shown that both STZ- and c-Myc-induced β-cell apoptosis is mediated through caspase-3 activation; however, the precise mechanism in these modes of cell death was not characterized.
|
1430 |
21719578
|
Moreover, the cytochrome c-mediated intrinsic apoptotic pathway is required for neither STZ- nor c-Myc-induced β-cell death.
|
1431 |
21719578
|
We also observed that the extrinsic apoptotic pathway mediated through caspase-8 was not essential in c-Myc-induced β-cell destruction.
|
1432 |
21719578
|
These findings suggest that cytochrome c is not required for STZ-induced β-cell apoptosis and, together with the caspase-8-mediated extrinsic pathway, plays a redundant role in c-Myc-induced β-cell apoptosis.
|
1433 |
21728022
|
Both compounds strongly suppressed growth of HL-60 cells by promoting cell cycle arrest at the G0/G1 transition, with concomitant decrease in protein levels of cyclins D1 and E2 and cyclin-dependent kinases (CDK 2 and CDK 4), and increased protein expression of CDK inhibitors p21(WAF1/Cip1) and p27(Kip1).
|
1434 |
21728022
|
In addition, either compounds induce cell differentiation as detected by increased NBT staining and expression of CD11b and CD14.
|
1435 |
21728022
|
Treatment with SR compounds also promoted mitochondrial-dependent apoptosis as confirmed by Annexin V-FITC double staining, DNA fragmentation, increased expression of caspase 3, 7 and 9, cytochrome c release, PARP degradation, and collapse in mitochondrial membrane potential (ΔΨ(MT)).
|
1436 |
21742976
|
Anti-CD3 treatment induced a transient systemic rise in the percentage but not absolute number of CD4(+)Foxp3(+) Tregs due to selective depletion of CD4(+)Foxp3(-) conventional T cells.
|
1437 |
21742976
|
T cell depletion induced by FNB anti-CD3 mAb was independent of the proapoptotic proteins Fas, caspase-3, and Bim and was not inhibited by overexpression of the anti-apoptotic protein, Bcl-2.
|
1438 |
21752941
|
TAK-875, an orally available G protein-coupled receptor 40/free fatty acid receptor 1 agonist, enhances glucose-dependent insulin secretion and improves both postprandial and fasting hyperglycemia in type 2 diabetic rats.
|
1439 |
21752941
|
G protein-coupled receptor 40/free fatty acid receptor 1 (GPR40/FFA(1)) is highly expressed in pancreatic β cells and mediates free fatty acid-induced insulin secretion.
|
1440 |
21752941
|
Prolonged exposure of cytokine-sensitive INS-1 832/13 to TAK-875 for 72 h at pharmacologically active concentrations did not alter glucose-stimulated insulin secretion, insulin content, or caspase 3/7 activity, whereas prolonged exposure to palmitic or oleic acid impaired β cell function and survival.
|
1441 |
21753123
|
The aim of this study was to determine the effects of EPA and the LXR agonist T0901317 on saturated fatty acid (palmitic acid)-induced apoptosis in the insulinoma β-cell line INS-1, a model for insulin-secreting β-cells.
|
1442 |
21753123
|
Consistent with these results, caspase-3 activity and BAX and sterol regulatory element binding protein-1c (SREBP-1c) mRNA levels were markedly increased in INS-1 cells co-administered palmitic acid and T0901317.
|
1443 |
21753123
|
Finally, T0901317 up-regulated the palmitic acid-induced expression of p27(KIP1), transforming growth factor beta 1, and SMAD3 proteins in INS-1 cells.
|
1444 |
21799917
|
The caspase-3-generated RasGAP N-terminal fragment (fragment N) inhibits apoptosis in a Ras-PI3K-Akt-dependent manner.
|
1445 |
21804221
|
Treatment with cobalt chloride (CoCl(2)) decreased the expression of EC-SOD but not other SOD isozymes in pericytes accompanied with an increase of intracellular ROS production.
|
1446 |
21804221
|
EC-SOD enhancer 4-phenyl butyric acid also suppressed the caspase-3 activation.
|
1447 |
21813561
|
We found that apoptosis was increased in both STZ-induced diabetic mice and high-glucose-treated HRVECs, which was due to increased activation of PARP, cleaved caspase3, and reduced expression of Notch1 and p-Akt.
|
1448 |
21813561
|
The results of Notch1 overexpression and knockdown indicated that Notch1 signaling participated in the interaction of PARP and p50, and inhibited PARP- and p50-mediated apoptosis directly.
|
1449 |
21813561
|
Thus, our study demonstrated that Notch1 signaling protects cells from PARP- and NF-κB-induced apoptosis under high glucose through the activation of Akt.
|
1450 |
21826175
|
We found that OCT4(high) 4T1 cells have an increased ability to form tumorsphere and a high expression of stem cell markers such as Sca-1, CD133, CD34, and ALDH1, when compared with OCT4(low) 4T1 cells.
|
1451 |
21826222
|
Our main findings concern intra-islet pro-inflammatory cytokines from fa/fa rats: IL-1β, IL-6 and TNFα expressions were increased; IL-1R1 was also over-expressed with a cellular redistribution also observed for IL-6R.
|
1452 |
21826222
|
Despite JNK overexpression, cell viability was unaffected probably because of decreases in cleaved caspase3 as well as in SMAC/DIABLO and APP, involved in the induction and amplification of apoptosis.
|
1453 |
21826222
|
Concerning β-cell proliferation, decreases in important cell cycle regulators (Cyclin D1, p35) and increased expression of SMAD4 probably contribute to counteract and restrain hyperplasia in fa/fa rat islets.
|
1454 |
21826649
|
ARPE-19 cells cultured in high-glucose (HG) medium or under hypoxia (1% oxygen)-induced phosphorylation of the stress-activated kinases JNK and p38 MAPK.
|
1455 |
21826649
|
Likewise, hyperglycemia and hypoxia triggered the phosphorylation of the endoplasmic reticulum (ER) stress markers PERK and eIF2α and the induction of the pro-apoptotic transcription factor CHOP.
|
1456 |
21826649
|
FA increased insulin-like growth factor I receptor (IGF-IR)-mediated survival signaling in cells cultured under hyperglycemia and hypoxia, thereby suppressing caspase-3 activation and down-regulation of BclxL.
|
1457 |
21850156
|
Increased tumor necrosis factor-α, cleaved caspase 3 levels and insulin receptor substrate-1 phosphorylation in the β₁-adrenergic receptor knockout mouse.
|
1458 |
21945929
|
In type 2 diabetes, stimulation of insulin secretion by glucagon-like peptide-1 (GLP-1) has been found to be reduced, and the results of recent studies have shown that the expression of the GLP-1 receptor (GLP-1R) is reduced by chronic hyperglycemia.
|
1459 |
21945929
|
In this study, we hypothesized that intermittent high glucose (IHG) conditions also reduced GLP-1-mediated cellular signaling via reduction in GLP-1R expression.
|
1460 |
21945929
|
In comparison to both the SHG and control groups, IHG conditions induced a more significant impairment of insulin release and calcium influx in response to 1nM GLP-1 treatment.
|
1461 |
21945929
|
In addition, the activity of caspase 3/7 as well as the gene expression of binding protein (Bip) and C/EBP homologous protein (CHOP), molecular markers of ER stress, was significantly higher in IHG-treated cells than in SHG-treated cells.
|
1462 |
21945929
|
Interestingly, the expression level of GLP-1R was significantly lower under IHG conditions than under SHG conditions.
|
1463 |
21945929
|
Collectively, these findings indicated that glucose fluctuation reduces GLP-1R expression through ER stress more profoundly than sustained hyperglycemia, which may contribute to the diminished response of GLP-1.
|
1464 |
22012129
|
High glucose increased mitochondrial calpain 10 substrates (NDUFB8 and ATP synthase β), decreased basal and uncoupled respiration, and initiated cell apoptosis as indicated by cleaved caspase 3 and nuclear condensation.
|
1465 |
22012129
|
In agreement with our in vitro data, the kidneys of streptozotocin-induced diabetic rats had elevated calpain 10 substrates and cleaved caspase 3.
|
1466 |
22012129
|
Finally, specific siRNA-induced knockdown of calpain 10 in the proximal tubules of control rats resulted in decreased renal function as evidenced by increased serum creatinine, and increased caspase 3 cleavage compared with rats receiving scrambled siRNA.
|
1467 |
22012129
|
High glucose increased mitochondrial calpain 10 substrates (NDUFB8 and ATP synthase β), decreased basal and uncoupled respiration, and initiated cell apoptosis as indicated by cleaved caspase 3 and nuclear condensation.
|
1468 |
22012129
|
In agreement with our in vitro data, the kidneys of streptozotocin-induced diabetic rats had elevated calpain 10 substrates and cleaved caspase 3.
|
1469 |
22012129
|
Finally, specific siRNA-induced knockdown of calpain 10 in the proximal tubules of control rats resulted in decreased renal function as evidenced by increased serum creatinine, and increased caspase 3 cleavage compared with rats receiving scrambled siRNA.
|
1470 |
22012129
|
High glucose increased mitochondrial calpain 10 substrates (NDUFB8 and ATP synthase β), decreased basal and uncoupled respiration, and initiated cell apoptosis as indicated by cleaved caspase 3 and nuclear condensation.
|
1471 |
22012129
|
In agreement with our in vitro data, the kidneys of streptozotocin-induced diabetic rats had elevated calpain 10 substrates and cleaved caspase 3.
|
1472 |
22012129
|
Finally, specific siRNA-induced knockdown of calpain 10 in the proximal tubules of control rats resulted in decreased renal function as evidenced by increased serum creatinine, and increased caspase 3 cleavage compared with rats receiving scrambled siRNA.
|
1473 |
22025647
|
We also assessed DPP IV activity, active GLP-1 level, cAMP and 8-hydroxy-deoxyguanosine excretion, and GLP-1R, cleaved caspase 3, and transforming growth factor-β1 (TGF-β1) expression.
|
1474 |
22025647
|
It is noteworthy that LAF237 markedly down-regulated DPP IV activity and increased active GLP-1 levels, which probably prevented oxidative DNA damage and renal cell apoptosis by activating the GLP-1R and modulating cAMP.
|
1475 |
22036650
|
Furthermore, fewer GLO-1-MCs showed evidence of apoptosis as determined by terminal deoxynucleotidyl transferase-mediated dUTP nick labeling assay, and activation of both poly (ADP-ribose) polymerase 1 cleavage and caspase-3 was lower in GLO-1-MCs than in control cells cultured in high glucose.
|
1476 |
22068111
|
Pretreatment with RSV inhibited apoptosis and reduced the activation of caspase-3 and poly(ADP-ribose) polymerase (PARP).
|
1477 |
22131441
|
2-Aminobicyclo-(2,2,1)-heptane-2-carboxylic acid (BCH) is an activator of glutamate dehydrogenase (GDH), which is a mitochondrial enzyme with an important role in insulin secretion.
|
1478 |
22131441
|
We evaluated GSIS, insulin gene expression, and DNA fragmentation in INS-1 cells exposed to HG or HG/PA in the presence or absence of BCH.
|
1479 |
22131441
|
Treatment with BCH blocked HG-induced GSIS inhibition and the HG/PA-induced reduction in insulin gene expression in INS-1 cells.
|
1480 |
22131441
|
BCH treatment also increased the ratio of insulin-positive β-cells to total islet area (P < 0.05) and reduced the percentage of β-cells expressing cleaved caspase 3 (P < 0.05).
|
1481 |
22131441
|
In conclusion, the GDH activator BCH improved glycemic control in db/db mice.
|
1482 |
22138721
|
The aim of this study was to investigate (i) the cholecystokinin, somatostatin and apelin mRNA levels, (ii) the changes in levels and localization of these peptides, (iii) relation between these peptides, (iv) antiapoptotic effects and (v) antioxidant effects of ghrelin.
|
1483 |
22138721
|
Cholecystokinin mRNA and peptide, somatostatin mRNA, release to duodenal lumen of apelin peptide and apelin mRNA signals decreased in ghrelin-treated diabetic rats compared to the diabetic group.
|
1484 |
22138721
|
There was no statistically significant difference among the four groups for somatostatin and apelin peptides.
|
1485 |
22138721
|
Caspase-3 signals were not observed only in diabetic group treated with ghrelin.
|
1486 |
22138721
|
Caspase-8 signals were increased while PCNA signals were decreased in diabetic group given ghrelin compared to diabetic group.
|
1487 |
22138721
|
Small intestine CAT, SOD, GP(x) and GST activities and GSH levels were decreased and LPO, PC levels were increased in diabetic rats.
|
1488 |
22155371
|
Hyperglycemia-induced enhanced levels of VEGF, ICAM-1, MCP-1 and IL-6 in the plasma of STZ treated animals indicate vascular inflammation in T1DM.
|
1489 |
22155371
|
Investigating molecular mechanism, we observed NF-κB and MAPKs (p38 and ERK1/2) activations, mitochondrial membrane depolarization, cytochrome C release, caspase 3 activation and PARP cleavage in apoptotic cell death in the diabetic cardiac tissue.
|
1490 |
22155658
|
Further, western blot analysis revealed the activation of caspases family proteins viz., caspase 8, caspase-9 and caspase-3.
|
1491 |
22155658
|
An increase in the expression of Bax mRNA concomitant with a decrease in mRNA of Bcl-2 in BEHP treated K562 cells was also observed.
|
1492 |
22159079
|
The PI(-)Lin(-)c-Kit(-)Sca-1(+)Flk-1(-)CD34(-)CD31(+) EPC cluster, which can differentiate into mature endothelial cells in vitro, was the highest population in the PB, BM, and spleen and occurred 61 times more in the spleen than in the PB.
|
1493 |
22180648
|
The functional role of angiopoietin-2 (Ang-2) in the regulation of angiogenesis is dependent on other growth factors such as VEGF and a given physiopathological conditions.
|
1494 |
22180648
|
The levels of Tie-2, VEGF, caspase-3, Wnt7b, fibroblast-specific protein-1 (FSP-1), and adhesion molecules (ICAM-1 and VCAM-1) expression were measured.
|
1495 |
22180648
|
Overexpression of Ang-2 suppressed Tie-2 and VEGF expression in db/db mouse hearts together with significant upregulation of Wnt7b expression.
|
1496 |
22180648
|
Overexpression of Ang-2 also sensitizes ICAM-1 and VCAM-1 expression in db/db mouse hearts.
|
1497 |
22180648
|
Exposure of MHMEC to Ang-2 resulted in increased caspase-3 activity and endothelial apoptosis.
|
1498 |
22180648
|
Further, counterbalance of Ang-2 by overexpression of Ang-1 reversed loss of capillary density and fibrosis formation in db/db mouse hearts.
|
1499 |
22180648
|
The functional role of angiopoietin-2 (Ang-2) in the regulation of angiogenesis is dependent on other growth factors such as VEGF and a given physiopathological conditions.
|
1500 |
22180648
|
The levels of Tie-2, VEGF, caspase-3, Wnt7b, fibroblast-specific protein-1 (FSP-1), and adhesion molecules (ICAM-1 and VCAM-1) expression were measured.
|
1501 |
22180648
|
Overexpression of Ang-2 suppressed Tie-2 and VEGF expression in db/db mouse hearts together with significant upregulation of Wnt7b expression.
|
1502 |
22180648
|
Overexpression of Ang-2 also sensitizes ICAM-1 and VCAM-1 expression in db/db mouse hearts.
|
1503 |
22180648
|
Exposure of MHMEC to Ang-2 resulted in increased caspase-3 activity and endothelial apoptosis.
|
1504 |
22180648
|
Further, counterbalance of Ang-2 by overexpression of Ang-1 reversed loss of capillary density and fibrosis formation in db/db mouse hearts.
|
1505 |
22210314
|
Bcl-2-modifying factor (Bmf) was differentially upregulated (P<0.01) in RPTs of db/db mice compared with db/m+ and db/db CAT-Tg mice and in RPTs of streptozotocin-induced diabetic mice in which insulin reversed this finding.
|
1506 |
22210314
|
In vitro, Bmf cDNA overexpression in rat RPTCs coimmunoprecipated with Bcl-2, enhanced caspase-3 activity, and promoted apoptosis.
|
1507 |
22210314
|
High glucose (25 mmol/L) induced Bmf mRNA expression in RPTCs, whereas rotenone, catalase, diphenylene iodinium, and apocynin decreased it.
|
1508 |
22239106
|
Studies on the mechanism of ALX-induced diabetes showed that hyperglycemia caused disruption of mitochondrial membrane potential in the spleen, released cytochrome C in the cytosol, activated caspase 3 and ultimately led to apoptotic cell death.
|
1509 |
22266669
|
Under the condition of hypoxia concomitant with serum deprivation, the overexpression of PGC-1α in MSCs resulted in a higher expression level of hypoxia-inducible factor-1α (Hif-1α), a greater ratio of B-cell lymphoma leukemia-2 (Bcl-2)/Bcl-2-associated X protein (Bax), and a lower level of caspase 3 compared with the controls, followed by an increased survival rate and an elevated expression level of several proangiogenic factors.
|
1510 |
22391800
|
Activated caspase 3 and Bax/Bcl-2 ratio-biochemical markers of apoptosis-were evaluated using immunoblotting.
|
1511 |
22391800
|
Administering SKE at a daily dose of between 50 and 200 mg/kg to the diabetic animals for 3 weeks ameliorated hyperglycemia, weight loss, hyperalgesia, and motor deficit, inhibited caspase 3 activation, and decreased the Bax/Bcl-2 ratio.
|
1512 |
22391800
|
Activated caspase 3 and Bax/Bcl-2 ratio-biochemical markers of apoptosis-were evaluated using immunoblotting.
|
1513 |
22391800
|
Administering SKE at a daily dose of between 50 and 200 mg/kg to the diabetic animals for 3 weeks ameliorated hyperglycemia, weight loss, hyperalgesia, and motor deficit, inhibited caspase 3 activation, and decreased the Bax/Bcl-2 ratio.
|
1514 |
22446192
|
Expression of activating transcription factor 3 (ATF 3) and caspase 3 in Schwann cells and axonal outgrowth after sciatic nerve repair in diabetic BB rats.
|
1515 |
22446192
|
The aim of this study was to evaluate nerve regeneration in relation to the transcription factor, Activating Transcription Factor 3 (ATF 3), and an apoptotic marker, caspase 3, in the Schwann cells of diabetic BB rats (i.e. display type 1 diabetes phenotype).
|
1516 |
22446192
|
Expression of activating transcription factor 3 (ATF 3) and caspase 3 in Schwann cells and axonal outgrowth after sciatic nerve repair in diabetic BB rats.
|
1517 |
22446192
|
The aim of this study was to evaluate nerve regeneration in relation to the transcription factor, Activating Transcription Factor 3 (ATF 3), and an apoptotic marker, caspase 3, in the Schwann cells of diabetic BB rats (i.e. display type 1 diabetes phenotype).
|
1518 |
22454630
|
Inhibition of protein tyrosine phosphatase improves angiogenesis via enhancing Ang-1/Tie-2 signaling in diabetes.
|
1519 |
22454630
|
Our previous studies demonstrate that disruption of Angiopoietin-1 (Ang-1)/Tie-2 signaling pathway contributes to the diabetes-associated impairment of angiogenesis.
|
1520 |
22454630
|
Protein tyrosine phosphatase (PTP) has a critical role in the regulation of insulin signal by inhibition of tyrosine kinase phosphorylation.
|
1521 |
22454630
|
In present study, we examined the role of protein tyrosine phosphatase-1 (SHP-1) in diabetes-associated impairment of Ang-1/Tie-2 angiogenic signaling and angiogenesis.
|
1522 |
22454630
|
Furthermore, SHP-1 bond to Tie-2 receptor and stimulation with Ang-1 led to SHP-1 dissociation from Tie-2 in mouse heart microvascular endothelial cell (MHMEC).
|
1523 |
22454630
|
Exposure of MHMEC to high glucose (HG, 30 mmol/L) increased SHP-1/Tie-2 association accompanied by a significant reduction of Tie-2 phosphorylation.
|
1524 |
22454630
|
Exposure of MHMEC to HG also blunted Ang-1-mediated SHP-1/Tie-2 dissociation.
|
1525 |
22454630
|
Knockdown of SHP-1 significantly attenuated HG-induced caspase-3 activation and apoptosis in MHMEC.
|
1526 |
22454630
|
Treatment with PTP inhibitors restored Ang-1-induced Akt/eNOS phosphorylation and angiogenesis.
|
1527 |
22454630
|
Our data implicate a critical role of SHP-1 in diabetes-associated vascular complications, and that upregulation of Ang-1/Tie-2 signaling by targeting SHP-1 should be considered as a new therapeutic strategy for the treatment of diabetes-associated impairment of angiogenesis.
|
1528 |
22467057
|
Flow cytometry analysis showed impaired EPC-like cell (Sca-1(+)/Flk-1(+)) mobilization after ischemia surgery in diabetic mice but augmented mobilization in the mice treated with niacin.
|
1529 |
22498697
|
Reduced β-cell viability and proliferation resulting in decreased β-cell mass was observed in these mice, which was associated with attenuated insulin/Akt (also known as protein kinase B) and extracellular signal-related kinase 1/2 signaling and increased caspase 3 activation.
|
1530 |
22498697
|
FAK-deficient β-cells exhibited impaired insulin secretion with normal glucose sensing and preserved Ca(2+) influx in response to glucose, but a reduced number of docked insulin granules and insulin exocytosis were found, which was associated with a decrease in focal proteins, paxillin and talin, and an impairment in actin depolymerization.
|
1531 |
22550476
|
Cells subjected to either glucolipotoxicity or tunicamycin exhibited increased ROS generation, gene and protein (PERK, GRP-78, IRE1α, and CHOP) expression of ER stress markers.
|
1532 |
22550476
|
In addition, these cells showed increased TRPC-6 channel expression and apoptosis as revealed by DNA damage and increased caspase-3 activity.
|
1533 |
22675572
|
HCV infection inhibits cell proliferation and induces death of MIN6 cells with apoptotic characteristics, including cell surface exposure of phosphatidylserine, decreased mitochondrial membrane potential, activation of caspase 3 and poly (ADP-ribose) polymerase, and DNA fragmentation in the nucleus.
|
1534 |
22750288
|
In the STZ group, TUNEL-staining levels and the expression of cleaved Caspase-3 and Bax were significantly increased, whereas Bcl-2 expression was significantly decreased.
|
1535 |
22750288
|
After the exposure to MG for 24h, cleaved Caspase-3 and Bax expression increased, whereas Bcl-2 expression decreased.
|
1536 |
22750288
|
These data suggest a possible link between the cognitive dysfunction associated with diabetes mellitus and the neurotoxicity of MG, which may alter the expression levels of cleaved Caspase-3, Bcl-2 and Bax in the hippocampus.
|
1537 |
22750288
|
In the STZ group, TUNEL-staining levels and the expression of cleaved Caspase-3 and Bax were significantly increased, whereas Bcl-2 expression was significantly decreased.
|
1538 |
22750288
|
After the exposure to MG for 24h, cleaved Caspase-3 and Bax expression increased, whereas Bcl-2 expression decreased.
|
1539 |
22750288
|
These data suggest a possible link between the cognitive dysfunction associated with diabetes mellitus and the neurotoxicity of MG, which may alter the expression levels of cleaved Caspase-3, Bcl-2 and Bax in the hippocampus.
|
1540 |
22750288
|
In the STZ group, TUNEL-staining levels and the expression of cleaved Caspase-3 and Bax were significantly increased, whereas Bcl-2 expression was significantly decreased.
|
1541 |
22750288
|
After the exposure to MG for 24h, cleaved Caspase-3 and Bax expression increased, whereas Bcl-2 expression decreased.
|
1542 |
22750288
|
These data suggest a possible link between the cognitive dysfunction associated with diabetes mellitus and the neurotoxicity of MG, which may alter the expression levels of cleaved Caspase-3, Bcl-2 and Bax in the hippocampus.
|
1543 |
22773666
|
Death protein 5 and p53-upregulated modulator of apoptosis mediate the endoplasmic reticulum stress-mitochondrial dialog triggering lipotoxic rodent and human β-cell apoptosis.
|
1544 |
22773666
|
By microarray analysis, we identified a palmitate-triggered ER stress gene expression signature and the induction of the BH3-only proteins death protein 5 (DP5) and p53-upregulated modulator of apoptosis (PUMA).
|
1545 |
22773666
|
Knockdown of either protein reduced cytochrome c release, caspase-3 activation, and apoptosis in rat and human β-cells.
|
1546 |
22773666
|
DP5 induction depends on inositol-requiring enzyme 1 (IRE1)-dependent c-Jun NH₂-terminal kinase and PKR-like ER kinase (PERK)-induced activating transcription factor (ATF3) binding to its promoter.
|
1547 |
22773666
|
PUMA expression is also PERK/ATF3-dependent, through tribbles 3 (TRB3)-regulated AKT inhibition and FoxO3a activation.
|
1548 |
22774990
|
The results indicated clearly that elevated MIF secretion preceded C57BL/6 pancreatic islets death induced by interferon (IFN)-γ + tumour necrosis factor (TNF)-α + interleukin (IL)-1β.
|
1549 |
22774990
|
Furthermore, upon exposure to cytokines pancreatic islets from MIF-KO mice maintained normal insulin expression and produced less cyclooxygenase-2 (COX-2) than those from wild-type C57BL6 mice.
|
1550 |
22774990
|
The final outcome of cytokine-induced islet apoptosis in islets from wild-type mice was the activation of mitochondrial membrane pore-forming protein Bcl-2-associated X protein and effector caspase 3.
|
1551 |
22796540
|
Role of matrix Gla protein in angiotensin II-induced exacerbation of vascular calcification.
|
1552 |
22796540
|
Matrix Gla protein (MGP), an inhibitor of calcification, limits calcium phosphate deposition in the vessel wall.
|
1553 |
22796540
|
In this study, we investigated the role of MGP in ANG II-induced exacerbation of vascular calcification in human vascular smooth muscle cells (VSMCs).
|
1554 |
22796540
|
The expression of MGP, calcification, and apoptosis in human VSMCs were examined by Western blot analysis, real-time PCR, in situ terminal deoxynucleotidyltransferase-mediated dUTP nick end labeling, and enzyme-linked immunosorbent assay, respectively.
|
1555 |
22796540
|
ANG II inhibited MGP expression in VSMCs via and in vitro in a dose- and time-dependent manner through ANG II type 1 receptor and NF-κB signaling pathway.
|
1556 |
22796540
|
Meanwhile, MGP inhibited the calcification, caspase-3 activity, activation of runt-related transcription factor 2, and release of inflammatory cytokines by VSMCs induced by calcification medium (2.5 mM P(i)) and ANG II in vitro.
|
1557 |
22796540
|
These observations provide evidence that ANG II exacerbates vascular calcification through activation of the transcription factors, runt-related transcription factor 2 and NF-κB, and regulation of MGP, inflammatory cytokines expression in human VSMCs.
|
1558 |
22796564
|
Furthermore, treatment with ALA down-regulated the Bax expression and the release of cytochrome c and AIF translocation, but up-regulated the Bcl-2 expression in SCs.
|
1559 |
22796564
|
Treatment with ALA attenuated the activation of caspase-3 and caspase-9 and minimized the cleavage of PARP in SCs.
|
1560 |
22825027
|
Malondialdehyde (MDA) content, superoxide dismutase (SOD) and caspase 3 activities were measured.
|
1561 |
22825027
|
In addition, with the development of diabetic cardiomyopathy, the contents of MDA and caspase 3 were increased, whereas SOD activity and Mfn-2 mRNA levels were further reduced.
|
1562 |
22825027
|
Malondialdehyde (MDA) content, superoxide dismutase (SOD) and caspase 3 activities were measured.
|
1563 |
22825027
|
In addition, with the development of diabetic cardiomyopathy, the contents of MDA and caspase 3 were increased, whereas SOD activity and Mfn-2 mRNA levels were further reduced.
|
1564 |
22844268
|
The aim of this study was to investigate the immunohistochemical expression of caspase-3, cyclooxygenase (COX)-1 and-2, calcium sensing receptor (CSR), and hypoxia inducible factor-1α (HIF-1α) in pancreas, liver, and kidney in streptozotocin (STZ) induced DM.
|
1565 |
22859217
|
Furthermore, EPC transplantation decreased the expression of type I collagen, Bax, caspase-3 and p67phox, while increasing the expression of Bcl-2 and manganese superoxide dismutase (MnSOD).
|
1566 |
22878185
|
In addition, the dieckol treatment increased the activities of antioxidative enzymes including catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-px) in high glucose-pretreated rat insulinoma cells.
|
1567 |
22878185
|
These effects were mediated by suppressing apoptosis and were associated with increased anti-apoptotic Bcl-2 expression, and reduced pro-apoptotic cleaved caspase-3 expression.
|
1568 |
22922276
|
Exposure of pancreatic β-cells to cytokines, such as interleukin-1β (IL-1β), is thought to contribute to β-cell apoptosis.
|
1569 |
22922276
|
One important event triggered by IL-1β is induction of nitric oxide synthase (iNOS), an enzyme that catalyzes intracellular generation of the cytotoxic free radical NO.
|
1570 |
22922276
|
Our results demonstrate that formononetin significantly prevents IL-1β-increased INS-1 cell death and blocks cytokine-induced apoptotic signaling (the reduction of Bax/Bcl-2 ratio and caspase-3 activity).
|
1571 |
22923498
|
Reduced DEAF1 function during type 1 diabetes inhibits translation in lymph node stromal cells by suppressing Eif4g3.
|
1572 |
22923498
|
Here, we demonstrate that DEAF1 also regulates the translation of genes in LNSCs by controlling the transcription of the poorly characterized eukaryotic translation initiation factor 4 gamma 3 (Eif4g3) that encodes eIF4GII.
|
1573 |
22923498
|
Eif4g3 gene expression was reduced in the pancreatic lymph nodes of Deaf1-KO mice, non-obese diabetic mice, and type 1 diabetes patients, where functional Deaf1 is absent or diminished.
|
1574 |
22923498
|
Silencing of Deaf1 reduced Eif4g3 expression, but increased the expression of Caspase 3, a serine protease that degrades eIF4GII.
|
1575 |
22923498
|
Polysome profiling showed that reduced Eif4g3 expression in LNSCs resulted in the diminished translation of various genes, including Anpep, the gene for aminopeptidase N, an enzyme involved in fine-tuning antigen presentation on major histocompatibility complex (MHC) class II.
|
1576 |
22923498
|
Together these findings suggest that reduced DEAF1 function, and subsequent loss of Eif4g3 transcription may affect peripheral tissue antigen (PTA) expression in LNSCs and contribute to the pathology of T1D.
|
1577 |
22940604
|
Diabetes triggers a PARP1 mediated death pathway in the heart through participation of FoxO1.
|
1578 |
22940604
|
This was accompanied by a simultaneous increase in iNOS expression and iNOS induced protein nitrosylation of GAPDH, increased GAPDH binding to Siah1 and facilitated nuclear translocation of the complex.
|
1579 |
22940604
|
Even though caspase-3 was cleaved during diabetes, its nitrosylation modification affected its ability to inactivate PARP.
|
1580 |
22940604
|
As a result, there was PARP activation followed by nuclear compartmentalization of AIF, and increased phosphatidyl serine externalization.
|
1581 |
22940604
|
Our data suggests a role for FoxO1 mediated iNOS induced S-nitrosylation of target proteins like GAPDH and caspase-3 in initiating cardiac cell death following hyperglycemia, and could explain the impact of glycemic control in preventing cardiovascular disease in patients with diabetes.
|
1582 |
22940604
|
Diabetes triggers a PARP1 mediated death pathway in the heart through participation of FoxO1.
|
1583 |
22940604
|
This was accompanied by a simultaneous increase in iNOS expression and iNOS induced protein nitrosylation of GAPDH, increased GAPDH binding to Siah1 and facilitated nuclear translocation of the complex.
|
1584 |
22940604
|
Even though caspase-3 was cleaved during diabetes, its nitrosylation modification affected its ability to inactivate PARP.
|
1585 |
22940604
|
As a result, there was PARP activation followed by nuclear compartmentalization of AIF, and increased phosphatidyl serine externalization.
|
1586 |
22940604
|
Our data suggests a role for FoxO1 mediated iNOS induced S-nitrosylation of target proteins like GAPDH and caspase-3 in initiating cardiac cell death following hyperglycemia, and could explain the impact of glycemic control in preventing cardiovascular disease in patients with diabetes.
|
1587 |
22961085
|
Embryos exposed to high glucose exhibit aberrant maturational and cytoarchitectural cellular changes, implicating cellular organelle stress in diabetic embryopathy. c-Jun-N-terminal kinase 1/2 (JNK1/2) activation is a causal event in maternal diabetes-induced neural tube defects (NTD).
|
1588 |
22961085
|
In embryos cultured under high-glucose conditions (20 mmol/L), the use of 4-phenylbutyric acid (4-PBA), an ER chemical chaperone, diminished ER stress markers and abolished the activation of JNK1/2 and its downstream transcription factors, caspase 3 and caspase 8, and Sox1 neural progenitor apoptosis.
|
1589 |
22969821
|
The db/db mice exhibited the upregulation of nicotinamide adenine dinucleotide phosphate oxidase subunits, NF-E2-related factor 2, heme oxygenase-1, nuclear factor-kappa B, cyclooxygenase-2, and inducible nitric oxide synthase levels in the liver; however, Kangen-karyu treatment significantly reduced those expressions.
|
1590 |
22969821
|
Moreover, the augmented expressions of apoptosis-related proteins, Bax, cytochrome c, c-Jun N-terminal kinase (JNK), phosphor-JNK, AP-1, and caspase-3, were downregulated by Kangen-karyu administration.
|
1591 |
22969993
|
IL-1β treatment significantly induced INS-1 cell death by 49.2%, increased LDH activity by 1.5-fold and caspase-3 activity by 7.6-fold, respectively, compared with control cells.
|
1592 |
22969993
|
However, PVAE administration significantly prevented IL-1β-increased INS-1 cell death and LDH activity and attenuated IL-1β-increased caspase-3 activity.
|
1593 |
22969993
|
Western blot data showed that PVAE also significantly attenuated IL-1β-increased Fas, FasL and phospho-JNK levels in the INS-1 cells.
|
1594 |
22969993
|
In addition, PVAE treatment significantly attenuated IL-1β-increased NF-κB binding activity and prevented IL-1β-increased TNF-α and IL-6 expression in INS-1 cells.
|
1595 |
22969993
|
IL-1β treatment significantly induced INS-1 cell death by 49.2%, increased LDH activity by 1.5-fold and caspase-3 activity by 7.6-fold, respectively, compared with control cells.
|
1596 |
22969993
|
However, PVAE administration significantly prevented IL-1β-increased INS-1 cell death and LDH activity and attenuated IL-1β-increased caspase-3 activity.
|
1597 |
22969993
|
Western blot data showed that PVAE also significantly attenuated IL-1β-increased Fas, FasL and phospho-JNK levels in the INS-1 cells.
|
1598 |
22969993
|
In addition, PVAE treatment significantly attenuated IL-1β-increased NF-κB binding activity and prevented IL-1β-increased TNF-α and IL-6 expression in INS-1 cells.
|
1599 |
22975510
|
Among these genes, Bax, Fas and Caspase-3 gene expressions were up-regulated by high glucose, whereas only Bax and Caspase-3 gene expression were elevated by cytokines.
|
1600 |
22975510
|
In these two stimuli-induced apoptotic cells, Rg1 down-regulated Fas gene expression, while Rb1 decreased Caspase-3 gene expression.
|
1601 |
22975510
|
As a conclusion, Fas signal pathway and mitochondria stress is mostly related to anti-diabetes function of ginsenoside Rg1, while Caspase-3 pathway is essential when Rb1 is present.
|
1602 |
22975510
|
Among these genes, Bax, Fas and Caspase-3 gene expressions were up-regulated by high glucose, whereas only Bax and Caspase-3 gene expression were elevated by cytokines.
|
1603 |
22975510
|
In these two stimuli-induced apoptotic cells, Rg1 down-regulated Fas gene expression, while Rb1 decreased Caspase-3 gene expression.
|
1604 |
22975510
|
As a conclusion, Fas signal pathway and mitochondria stress is mostly related to anti-diabetes function of ginsenoside Rg1, while Caspase-3 pathway is essential when Rb1 is present.
|
1605 |
22975510
|
Among these genes, Bax, Fas and Caspase-3 gene expressions were up-regulated by high glucose, whereas only Bax and Caspase-3 gene expression were elevated by cytokines.
|
1606 |
22975510
|
In these two stimuli-induced apoptotic cells, Rg1 down-regulated Fas gene expression, while Rb1 decreased Caspase-3 gene expression.
|
1607 |
22975510
|
As a conclusion, Fas signal pathway and mitochondria stress is mostly related to anti-diabetes function of ginsenoside Rg1, while Caspase-3 pathway is essential when Rb1 is present.
|
1608 |
23001844
|
The expressions of cystathionine-γ-lyase (CSE), caspase-3 and -9, the mitochondrial NOX4 and cytochrome c were analyzed by western blotting.
|
1609 |
23001844
|
Furthermore, NaHS down-regulated the expression of mitochondrial NOX4 and caspase-3 and -9 and inhibited the release of cytochrome c from mitochondria in the primary neonatal rat cardiomyocytes.
|
1610 |
23001844
|
The expressions of cystathionine-γ-lyase (CSE), caspase-3 and -9, the mitochondrial NOX4 and cytochrome c were analyzed by western blotting.
|
1611 |
23001844
|
Furthermore, NaHS down-regulated the expression of mitochondrial NOX4 and caspase-3 and -9 and inhibited the release of cytochrome c from mitochondria in the primary neonatal rat cardiomyocytes.
|
1612 |
23119081
|
CYP24A1 exacerbated activity during diabetes contributes to kidney tubular apoptosis via caspase-3 increased expression and activation.
|
1613 |
23119081
|
Our data suggest that control of CYP24A1 increase during diabetes has a beneficial effect on senescence induction and caspase-3 increased expression.
|
1614 |
23119081
|
CYP24A1 exacerbated activity during diabetes contributes to kidney tubular apoptosis via caspase-3 increased expression and activation.
|
1615 |
23119081
|
Our data suggest that control of CYP24A1 increase during diabetes has a beneficial effect on senescence induction and caspase-3 increased expression.
|
1616 |
23161104
|
High levels of glucose induced the caspase-3/PARP signaling pathway, leading to apoptosis in human periodontal ligament fibroblasts.
|
1617 |
23161104
|
In addition, concentrations of caspase-3 and its substrate PARP in cultured human periodontal ligament fibroblasts increased in a time-dependent manner.
|
1618 |
23161104
|
High levels of glucose induced the caspase-3/PARP signaling pathway, leading to apoptosis in human periodontal ligament fibroblasts.
|
1619 |
23161104
|
In addition, concentrations of caspase-3 and its substrate PARP in cultured human periodontal ligament fibroblasts increased in a time-dependent manner.
|
1620 |
23166623
|
Dynamin-related protein 1 (DRP-1) is a mitochondrial fission modulator.
|
1621 |
23166623
|
Induction of DRP-1 expression significantly promoted FFA-induced apoptosis in DRP-1 WT (DRP-1 wild type) inducible INS-1-derived cell line, but not in DRP-1K38A (a dominant negative mutant of DRP-1) inducible INS-1-derived cell line.
|
1622 |
23166623
|
It was further demonstrated that mitochondrial membrane potential decreased, while cytochrome c release, caspase-3 activation, and generation of reactive oxygen species (ROS) were enhanced by the induction of DRP-1WT, but prevented by DRP-1 K38A in INS-1-derived cells under FFA stimulation.
|
1623 |
23197974
|
Another five rats were selected randomly from the four groups, respectively, for intravenous injection insulin releasing test (IVIRT), and the other five rats for pancreas specimens used in islet cell immunohistochemistry staining (stained for insulin, NF-κB, and caspase-3), islet cell apoptosis staining, and reverse transcription PCR (AT1R and IL-1 beta).
|
1624 |
23219834
|
We tested the hypotheses that a) type 2 diabetes increases endoplasmic reticulum (ER) stress response, production of pro-inflammatory cytokines and kidney cell death and b) downregulations of renal indoleamine 2,3-dioxygenase (IDO) and programmed death-1 (PD-1) contribute to exacerbated inflammation and tissue injury.
|
1625 |
23219834
|
The growth arrest and DNA damage-inducible protein 153 (GADD153; a marker of ER stress response), inflammatory cytokines and cell death were determined in the context of assessment of IDO and PD-1 in an animal model of type 2 diabetic nephropathy (i.e., db/db mouse).
|
1626 |
23219834
|
Peripheral blood of 4-month-old db/db mice manifested significantly greater percents of interleukin (IL)-17 and IL-23 positive cells in association with greater percents of cells that were positive for PD-1 or GADD153.
|
1627 |
23219834
|
Compared to kidneys of db/m controls, renal cells prepared from kidneys of db/db mice displayed a) increased percent of cells that were positive for IL-17, IL-23, PD-1 and GADD153, b) decreased JC-1 aggregates but increased JC-1 monomers suggestive of disruption of mitochondrial membrane potential and c) increased apoptotic and necrotic cell death.
|
1628 |
23219834
|
Immunohistochemical analyses also revealed increased staining of renal tissue of db/db mice for IL-17, IL23, GADD153, Annexin V, caspase 3, PD-1 and IDO compared to db/m kidneys; these changes were generally more prominent in the glomeruli.
|
1629 |
23219834
|
However, the accompanying upregulations of PD-1 and IDO likely reflect activation of compensatory mechanisms to curtail inflammation and cell injury.
|
1630 |
23226517
|
Inhibition of caspase-3 and activation of ERK phosphorylation related MAPK pathway were involved in prevention of enhanced apoptosis in diabetes afforded by THSG.
|
1631 |
23226517
|
Our study indicates that THSG improves diabetic gastrointestinal disorders through activation of MAPK pathway and upregulation of PPAR-γ and SIRT1.
|
1632 |
23238821
|
The apoptosis and senescence of NP cells was investigated by terminal deoxyribonucleotidyl transferase (TDT)-mediated dUTP-digoxigenin nick end labeling (TUNEL) assay, immunohistochemistry, and Western blot for caspase3, caspase8, caspase9, and p16lnk4A (increased in cellular senescence).
|
1633 |
23238821
|
The proteoglycan and collagen II in the extracellular matrix and the aggrecan and collagen II mRNA expression in NP cells of diabetic rats were decreased compared with the control group.
|
1634 |
23238821
|
Diabetes increased apoptosis of NP cells and led to activations of initiators of intrinsic (caspases-9) and extrinsic (caspase-8) pathways as well as their common executioner (caspase-3).
|
1635 |
23238821
|
The apoptosis and senescence of NP cells was investigated by terminal deoxyribonucleotidyl transferase (TDT)-mediated dUTP-digoxigenin nick end labeling (TUNEL) assay, immunohistochemistry, and Western blot for caspase3, caspase8, caspase9, and p16lnk4A (increased in cellular senescence).
|
1636 |
23238821
|
The proteoglycan and collagen II in the extracellular matrix and the aggrecan and collagen II mRNA expression in NP cells of diabetic rats were decreased compared with the control group.
|
1637 |
23238821
|
Diabetes increased apoptosis of NP cells and led to activations of initiators of intrinsic (caspases-9) and extrinsic (caspase-8) pathways as well as their common executioner (caspase-3).
|
1638 |
23267840
|
All these events lead to excitotoxic neuronal death in the cerebral cortex, which was confirmed by the increased expression of caspase 3, caspase 8 and BCL2-associated X protein.
|
1639 |
23271640
|
Caspase-3 activity was increased in diabetic rat retina after 3 weeks of diabetes and remained elevated until 10 weeks, which negatively correlated with the level of BDNF (r = -0.544, p = 0.013).
|
1640 |
23292175
|
These include stimulation of protein degradation in muscle arising from activation of caspase-3 and the ubiquitin-proteasome system (UPS).
|
1641 |
23292175
|
In muscle, the specific ligases are Atrogin-1 and MuRF-1, and their expression has characteristics of a biomarker of accelerated muscle proteolysis.
|
1642 |
23292175
|
Specific complications of CKD (metabolic acidosis, insulin resistance, inflammation, and angiotensin II) activate caspase-3 and the UPS through mechanisms that include glucocorticoids and impaired insulin or IGF-1 signaling.
|
1643 |
23292175
|
These include stimulation of protein degradation in muscle arising from activation of caspase-3 and the ubiquitin-proteasome system (UPS).
|
1644 |
23292175
|
In muscle, the specific ligases are Atrogin-1 and MuRF-1, and their expression has characteristics of a biomarker of accelerated muscle proteolysis.
|
1645 |
23292175
|
Specific complications of CKD (metabolic acidosis, insulin resistance, inflammation, and angiotensin II) activate caspase-3 and the UPS through mechanisms that include glucocorticoids and impaired insulin or IGF-1 signaling.
|
1646 |
23300997
|
AKT and ERK1/2 signalling pathways were analyzed.
|
1647 |
23300997
|
Apoptosis was studied by TUNEL and cleaved caspase 3. β-cell function was measured by glucose-stimulated insulin secretion.
|
1648 |
23300997
|
Epoxypukalide induced 2.5-fold increase in β-cell proliferation; this effect was mediated by activation of ERK1/2 signalling pathway and upregulation of the cell cycle activators, cyclin D2 and cyclin E.
|
1649 |
23304209
|
Guizhi-Fuling-Wan, a Traditional Chinese Herbal Medicine, Ameliorates Memory Deficits and Neuronal Apoptosis in the Streptozotocin-Induced Hyperglycemic Rodents via the Decrease of Bax/Bcl2 Ratio and Caspase-3 Expression.
|
1650 |
23304209
|
It also was found that GFW treatment reduced caspase-3 protein levels and increased levels of the antiapoptotic protein Bcl-2 that were indicative of neuroprotection.
|
1651 |
23304209
|
Guizhi-Fuling-Wan, a Traditional Chinese Herbal Medicine, Ameliorates Memory Deficits and Neuronal Apoptosis in the Streptozotocin-Induced Hyperglycemic Rodents via the Decrease of Bax/Bcl2 Ratio and Caspase-3 Expression.
|
1652 |
23304209
|
It also was found that GFW treatment reduced caspase-3 protein levels and increased levels of the antiapoptotic protein Bcl-2 that were indicative of neuroprotection.
|
1653 |
23335157
|
Diminished O-GlcNAc levels render CSCs more susceptible to the onset of posthypoxic apoptotic processes via elevated poly(ADP-ribose) polymerase cleavage due to enhanced caspase-3/7 activation, whereas promoting O-GlcNAcylation can serve as a pre-emptive antiapoptotic signal regulating the survival of CSCs.
|
1654 |
23353574
|
MiR-15a-3p is a novel member of the pro-apoptotic miRNA cluster, miR-15a/16, which was found to activate Caspase-3/7 and to cause viability loss in B/CMBA.Ov cells during preliminary screening.
|
1655 |
23353574
|
Follow-up studies confirmed the pro-apoptotic role of hsa-miR-15a-3p in human cells by its ability to activate Caspase-3/7, to reduce cell viability and to inhibit the expression of bcl2l1 (bcl-xL) in HeLa and AsPc-1 cells.
|
1656 |
23353574
|
The capability of hsa-miR-15a-3p to induce apoptosis in these carcinomas may be dependent on the levels of Bcl-xL expression.
|
1657 |
23353574
|
The use of endogenous inhibitors of bcl-xL and other anti-apoptotic genes such as hsa-miR-15a-3p may provide improved options for apoptosis-modulating therapies in cancer treatment compared with the use of artificial antisense oligonucleotides.
|
1658 |
23353574
|
MiR-15a-3p is a novel member of the pro-apoptotic miRNA cluster, miR-15a/16, which was found to activate Caspase-3/7 and to cause viability loss in B/CMBA.Ov cells during preliminary screening.
|
1659 |
23353574
|
Follow-up studies confirmed the pro-apoptotic role of hsa-miR-15a-3p in human cells by its ability to activate Caspase-3/7, to reduce cell viability and to inhibit the expression of bcl2l1 (bcl-xL) in HeLa and AsPc-1 cells.
|
1660 |
23353574
|
The capability of hsa-miR-15a-3p to induce apoptosis in these carcinomas may be dependent on the levels of Bcl-xL expression.
|
1661 |
23353574
|
The use of endogenous inhibitors of bcl-xL and other anti-apoptotic genes such as hsa-miR-15a-3p may provide improved options for apoptosis-modulating therapies in cancer treatment compared with the use of artificial antisense oligonucleotides.
|
1662 |
23353834
|
The results show that HG increases TXNIP expression in TR-rPCT1, which correlates positively with ROS generation, protein S-nitrosylation, and pro-apoptotic caspase-3 activation.
|
1663 |
23353834
|
Treatment of TR-rPCT1 with NAC or an inhibition of TXNIP by AzaS or siTXNIP3 each reduces HG-induced ROS, caspase-3 activation and DNA damage demonstrating that TXNIP up-regulation under chronic hyperglycemia is critically involved in cellular oxidative stress, DNA damage and retinal pericyte apoptosis.
|
1664 |
23353834
|
The results show that HG increases TXNIP expression in TR-rPCT1, which correlates positively with ROS generation, protein S-nitrosylation, and pro-apoptotic caspase-3 activation.
|
1665 |
23353834
|
Treatment of TR-rPCT1 with NAC or an inhibition of TXNIP by AzaS or siTXNIP3 each reduces HG-induced ROS, caspase-3 activation and DNA damage demonstrating that TXNIP up-regulation under chronic hyperglycemia is critically involved in cellular oxidative stress, DNA damage and retinal pericyte apoptosis.
|
1666 |
23354631
|
[Decreased caspase 3 expression and cytotoxic T lymphocyte antigen-4 polymorphism in Chilean patients with type 1 diabetes].
|
1667 |
23365678
|
Expression of proNGF, p75(NTR), cleaved-PARP, caspase-3 and p38MAPK/JNK were examined by Western-blot.
|
1668 |
23365678
|
These effects were associated with significant upregulation of p75(NTR) and activation of RhoA.
|
1669 |
23365678
|
Inhibiting RhoA kinase with Y27632 significantly reduced diabetes- and proNGF-induced activation of proapoptotic p38MAPK/JNK, expression of cleaved-PARP and caspase-3 and prevented retinal neurodegeneration in vivo and in vitro.
|
1670 |
23365678
|
Taken together, these results provide compelling evidence for a causal role of proNGF in diabetes-induced retinal neurodegeneration through enhancing p75(NTR) expression and direct activation of RhoA and p38MAPK/JNK apoptotic pathways.
|
1671 |
23365678
|
Expression of proNGF, p75(NTR), cleaved-PARP, caspase-3 and p38MAPK/JNK were examined by Western-blot.
|
1672 |
23365678
|
These effects were associated with significant upregulation of p75(NTR) and activation of RhoA.
|
1673 |
23365678
|
Inhibiting RhoA kinase with Y27632 significantly reduced diabetes- and proNGF-induced activation of proapoptotic p38MAPK/JNK, expression of cleaved-PARP and caspase-3 and prevented retinal neurodegeneration in vivo and in vitro.
|
1674 |
23365678
|
Taken together, these results provide compelling evidence for a causal role of proNGF in diabetes-induced retinal neurodegeneration through enhancing p75(NTR) expression and direct activation of RhoA and p38MAPK/JNK apoptotic pathways.
|
1675 |
23376836
|
The Hsp treatment (100 mg/kg body weight) was carried for twenty four weeks in STZ-induced diabetic rats and evaluated for antioxidant (Superoxide dismutase; SOD, Catalase; CAT and glutathione; GSH) enzymes, inflammatory cytokines (TNF-α, IL-1β), caspase-3, glial fibrillary acidic protein (GFAP) and aquaporin-4(AQP4) expression.
|
1676 |
23376836
|
Diabetic retinae showed increased caspase-3, GFAP and AQP4 expression.
|
1677 |
23376836
|
However, Hsp-treated retinae showed inhibitory effect on caspase-3, GFAP and AQP4 expression.
|
1678 |
23376836
|
The Hsp treatment (100 mg/kg body weight) was carried for twenty four weeks in STZ-induced diabetic rats and evaluated for antioxidant (Superoxide dismutase; SOD, Catalase; CAT and glutathione; GSH) enzymes, inflammatory cytokines (TNF-α, IL-1β), caspase-3, glial fibrillary acidic protein (GFAP) and aquaporin-4(AQP4) expression.
|
1679 |
23376836
|
Diabetic retinae showed increased caspase-3, GFAP and AQP4 expression.
|
1680 |
23376836
|
However, Hsp-treated retinae showed inhibitory effect on caspase-3, GFAP and AQP4 expression.
|
1681 |
23376836
|
The Hsp treatment (100 mg/kg body weight) was carried for twenty four weeks in STZ-induced diabetic rats and evaluated for antioxidant (Superoxide dismutase; SOD, Catalase; CAT and glutathione; GSH) enzymes, inflammatory cytokines (TNF-α, IL-1β), caspase-3, glial fibrillary acidic protein (GFAP) and aquaporin-4(AQP4) expression.
|
1682 |
23376836
|
Diabetic retinae showed increased caspase-3, GFAP and AQP4 expression.
|
1683 |
23376836
|
However, Hsp-treated retinae showed inhibitory effect on caspase-3, GFAP and AQP4 expression.
|
1684 |
23438132
|
The effect of insulin treatment on Rac1 expression in diabetic kidney.
|
1685 |
23438132
|
This study was designed to evaluate the renoprotective effect of insulin on diabetic nephropathy through Rac1 inhibition.
|
1686 |
23438132
|
The kidney tissue samples were analyzed by immunohistochemical staining for Rac1 and cleaved caspase-3 expressions and using the TUNEL method for determining apoptotic cells.
|
1687 |
23438132
|
Diabetes increased the number of TUNEL (+) cells and cleaved caspase-3 and Rac1 expression levels in kidney.
|
1688 |
23438132
|
Administration of insulin for 8 weeks reduced Rac1 expression and ameliorated histopathological changes in kidney of STZ-induced diabetes model.
|
1689 |
23438132
|
These results may suggest that the renoprotective effect of insulin at least partly results from inhibition of Rac1 overexpression.
|
1690 |
23438132
|
The effect of insulin treatment on Rac1 expression in diabetic kidney.
|
1691 |
23438132
|
This study was designed to evaluate the renoprotective effect of insulin on diabetic nephropathy through Rac1 inhibition.
|
1692 |
23438132
|
The kidney tissue samples were analyzed by immunohistochemical staining for Rac1 and cleaved caspase-3 expressions and using the TUNEL method for determining apoptotic cells.
|
1693 |
23438132
|
Diabetes increased the number of TUNEL (+) cells and cleaved caspase-3 and Rac1 expression levels in kidney.
|
1694 |
23438132
|
Administration of insulin for 8 weeks reduced Rac1 expression and ameliorated histopathological changes in kidney of STZ-induced diabetes model.
|
1695 |
23438132
|
These results may suggest that the renoprotective effect of insulin at least partly results from inhibition of Rac1 overexpression.
|
1696 |
23451817
|
Real-time polymerase chain reaction and Western Blotting were performed to determine the expression of apoptosis-related genes and proteins such as Caspase-3, Bcl-2/Bax, Cyclin D1, and p21.
|
1697 |
23458895
|
NQO1 knockout (KO) mice showed hyperglycemia, body weight loss, impaired glucose clearance rate and a lower plasma insulin level after MLDS treatment.
|
1698 |
23458895
|
At the same time, MLDS-treated KO mice showed significantly increased apoptotic markers in β-cells, including cleaved caspase 3, Smac/DIABLO and AIF (apoptosis inducing factor) in the cytoplasm.
|
1699 |
23471649
|
We report that αB-crystallin (-/-) knock out (KO) MEFs immortalized by dominant negative (DN) p53 are resistant to transformation by the adenovirus E1A oncoprotein, which inactivates Rb, while wild-type (WT) MEFs are readily transformed by DN p53 and E1A. αB-crystallin (-/-) KO MEFs stably expressing DN p53 and E1A were more sensitive to chemotherapy-induced caspase-3 activation and apoptosis than the corresponding WT MEFs, despite comparable induction of procaspases by E1A.
|
1700 |
23474487
|
In addition, proapoptotic (FasL, Bid, and activation of caspase-8 and caspase-3) and survival signaling pathways (BclxL) were examined.
|
1701 |
23499715
|
Deletion of Fgf21 gene does not affect testicular cell proliferation, but significantly increases the spontaneous incidence of testicular TUNEL positive cells with increases in the Bax/Bcl2 expression ratio and apoptosis-inducing factor (AIF) expression.
|
1702 |
23499715
|
Diabetes induced significant increases in testicular TUNEL positive cells, Bax/Bcl2 expression ratio, AIF expression, CHOP and cleaved caspase-12 expression, and oxidative damage, but did not change the expression of cleaved caspase-3 and caspase-8.
|
1703 |
23499715
|
Deletion of Fgf21 gene also significantly enhances diabetes-induced TUNEL positive cells along with the increased expression of Bax/Bcl2 ratio, AIF, CHOP, cleaved caspase-12, and oxidative damage, which was significantly prevented by the supplementation of exogenous FGF21.
|
1704 |
23518926
|
Further study of Dicer-KO adrenals demonstrated a significant loss of steroidogenic factor 1-expressing cortical cells that was histologically evident as early as E16.5 coincident with an increase in p21 and cleaved-caspase 3 staining in the cortex.
|
1705 |
23518926
|
Consistent with the absence of Dicer and the associated loss of miRNA-mediated mRNA degradation, we observed an up-regulation of a small subset of adrenal transcripts in Dicer-KO mice, most notably the transcripts coded by the genes Nr6a1 and Acvr1c.
|
1706 |
23518926
|
Indeed, several miRNAs, including let-7, miR-34c, and miR-21, that are predicted to target these genes for degradation, were also markedly down-regulated in Dicer-KO adrenals.
|
1707 |
23527285
|
In the present study, we identified that the major endoplasmic reticulum stress (ERS) marker, Grp78 and ERS-induced apoptotic factor, CHOP, were time-dependently increased by exposure of β-TC3 cells to FFA.
|
1708 |
23527285
|
The expression of ATF6 and the phosphorylation levels of PERK and IRE1, which trigger ERS signaling, markedly increased after FFA treatments.
|
1709 |
23527285
|
We also found that FFA-induced ERS was mediated by the store-operated Ca(2+) entry through promoting the association of STIM1 and Orai1.
|
1710 |
23527285
|
Moreover, calpain-2 was required for FFA-induced expression of CHOP and activation of caspase-12 and caspase-3, thus promoting cell apoptosis in β-TC3 cells.
|
1711 |
23566555
|
Regulation of oxidative stress and somatostatin, cholecystokinin, apelin gene expressions by ghrelin in stomach of newborn diabetic rats.
|
1712 |
23566555
|
The gene expressions of: somatostatin, cholecystokinin, apelin and the altered active caspase-3, active caspase-8, proliferating cell nuclear antigen, were investigated in the pyloric region of the stomach and antioxidant parameters were measured in all the stomach.
|
1713 |
23566555
|
Exogenous ghrelin caused an increased activities of stomach catalase, superoxide dismutase, glutathione reductase and glutathione peroxidase in diabetic rats.
|
1714 |
23566555
|
Numbers of somatostatin, cholecystokinin and proliferating cell nuclear antigen immunoreactive cells decreased in the diabetic+ghrelin group compared to the diabetic group.
|
1715 |
23566555
|
Apelin mRNA expressions were remarkably less in the diabetic+ghrelin rats than in diabetic rats.
|
1716 |
23567861
|
The results showed that levels of glucose, leptin, insulin, C-peptide, resistin, tumor necrosis factor-α, interleukin-6, triglycerides, total cholesterol, non-esterified fatty acids, high-density lipoprotein cholesterol, very low-density lipoprotein cholesterol/low-density lipoprotein cholesterol, reactive oxygen species (ROS), and thiobarbituric acid-reactive substance (TBARS) in serum were down-regulated, while adiponectin was augmented by GS treatment.
|
1717 |
23567861
|
The administration of GS significantly decreased sterol regulatory element binding protein-1, nuclear factor-kappa ?
|
1718 |
23567861
|
>Bp65, cyclooxygenase-2, inducible nitric oxide synthase, monocyte chemotactic protein-1, intracellular adhesion molecule-1, phosphor c-Jun N-terminal kinase, activator protein-1, transforming growth factor-β1, Bax, cytochrome c, and caspase-3 expressions.
|
1719 |
23592481
|
The sub-G0 cell population was higher with p21 overexpression and was attributable to apoptosis, as demonstrated by increased annexin-positive stained cells and cleaved caspase-3 protein. p21-mediated caspase-3 cleavage was inhibited by either overexpression of the antiapoptotic mitochondrial protein Bcl-2 or siRNA-mediated suppression of the proapoptotic proteins Bax and Bak.
|
1720 |
23606308
|
These cells not only expressed MSC-specific markers like Sca-1, CD90.2, CD73, and CD44 but also generated osteocytes, adipocytes, and neurons when induced with specific growth media.
|
1721 |
23606308
|
Upon exposure to islet differentiation serum-free cocktail a significant upregulation of pancreatic markers like Nkx2.2, Nkx6.1, Pdx1, insulin, and somatostatin was seen.
|
1722 |
23616419
|
Caspase 3 activation and PARP cleavage in lymphocytes from newborn babies of diabetic mothers with unbalanced glycaemic control.
|
1723 |
23616419
|
The aim of this study was to investigate the presence and processing of caspase 3 (Casp3) and poly(ADP-ribose) polymerase 1 (PARP1) in cord blood lymphocytes as markers of apoptosis in relation to glycaemic control during intrauterine life.
|
1724 |
23616419
|
Our results showed a specific positive correlation between the levels of active Casp3 (17-19 kDa) and the inactive form of PARP1 (89 kDa) in lymphocytes isolated from newborn babies of diabetic women with unbalanced glycaemic control, with a direct correlation between the activation of casp3 and the inactivation of PARP1, that makes lymphocytes unresponsive towards lipopolysaccharide stimulation, highlighting an altered functional response.
|
1725 |
23616419
|
Caspase 3 activation and PARP cleavage in lymphocytes from newborn babies of diabetic mothers with unbalanced glycaemic control.
|
1726 |
23616419
|
The aim of this study was to investigate the presence and processing of caspase 3 (Casp3) and poly(ADP-ribose) polymerase 1 (PARP1) in cord blood lymphocytes as markers of apoptosis in relation to glycaemic control during intrauterine life.
|
1727 |
23616419
|
Our results showed a specific positive correlation between the levels of active Casp3 (17-19 kDa) and the inactive form of PARP1 (89 kDa) in lymphocytes isolated from newborn babies of diabetic women with unbalanced glycaemic control, with a direct correlation between the activation of casp3 and the inactivation of PARP1, that makes lymphocytes unresponsive towards lipopolysaccharide stimulation, highlighting an altered functional response.
|
1728 |
23616419
|
Caspase 3 activation and PARP cleavage in lymphocytes from newborn babies of diabetic mothers with unbalanced glycaemic control.
|
1729 |
23616419
|
The aim of this study was to investigate the presence and processing of caspase 3 (Casp3) and poly(ADP-ribose) polymerase 1 (PARP1) in cord blood lymphocytes as markers of apoptosis in relation to glycaemic control during intrauterine life.
|
1730 |
23616419
|
Our results showed a specific positive correlation between the levels of active Casp3 (17-19 kDa) and the inactive form of PARP1 (89 kDa) in lymphocytes isolated from newborn babies of diabetic women with unbalanced glycaemic control, with a direct correlation between the activation of casp3 and the inactivation of PARP1, that makes lymphocytes unresponsive towards lipopolysaccharide stimulation, highlighting an altered functional response.
|
1731 |
23648321
|
Western blot analysis showed that telmisartan reduced the testicular inflammation and cell death by down-regulating the expression of NF-κB, IL-6, TNF-α, p-ERK1/2, iNOS, caspase-3 and increasing the PPAR-γ expression.
|
1732 |
23650610
|
Toward addressing linkage of PAK1 to β-cell survival, PAK1-siRNA targeted MIN6 pancreatic β-cells were found to exhibit increased caspase-3 cleavage, cytosolic cytochrome-C and the pro-apoptotic protein Bad.
|
1733 |
23670975
|
To test this hypothesis, we measured diabetic c-kit(+)Sca-1(+)lin(-) (KSL) cell activity in vitro as well as the effect of KSL cell-adoptive transfer on the rate of euglycemic wound closure before and after QQc.
|
1734 |
23671882
|
The mRNA levels of XBP1, ATF4, and TRAF2 were analyzed by RT-PCR, and the expression of glucose-regulated protein 78 (Grp78), enhancer-binding protein homologous protein (CHOP), caspase-3, and caspase-12 was detected by western blot.
|
1735 |
23671882
|
LIRA treatment can significantly decrease the expression of XBP1, ATF4, and TRAF2 (P < 0.01).
|
1736 |
23671882
|
LIRA also significantly downregulates the expression of Grp78, caspase-3 (P < 0.01), CHOP, and caspase-12 (P < 0.05).
|
1737 |
23671882
|
The mRNA levels of XBP1, ATF4, and TRAF2 were analyzed by RT-PCR, and the expression of glucose-regulated protein 78 (Grp78), enhancer-binding protein homologous protein (CHOP), caspase-3, and caspase-12 was detected by western blot.
|
1738 |
23671882
|
LIRA treatment can significantly decrease the expression of XBP1, ATF4, and TRAF2 (P < 0.01).
|
1739 |
23671882
|
LIRA also significantly downregulates the expression of Grp78, caspase-3 (P < 0.01), CHOP, and caspase-12 (P < 0.05).
|
1740 |
23675062
|
Inhibition of Raf-1 kinase repressed glucose-induced apoptosis of the cells by 75%, and this was accompanied by attenuation of activation of MAP kinase, ERK-1, nuclear transcriptional factor and caspase-3.
|
1741 |
23680671
|
The orphan nuclear receptor small heterodimer partner negatively regulates pancreatic beta cell survival and hyperglycemia in multiple low-dose streptozotocin-induced type 1 diabetic mice.
|
1742 |
23680671
|
SHP KO mice showed significantly lower blood glucose, higher insulin levels, and enhanced glucose tolerance compared with wild type (WT) mice after MLDS treatment.
|
1743 |
23680671
|
Moreover, beta cell mass and pancreatic insulin content were remarkably increased in SHP KO mice.
|
1744 |
23680671
|
In the response to glucose stimulation, islets of SHP KO showed increased insulin secretion via up-regulation of beta cell enriched transcription factors compared to WT mice after streptozotocin (STZ) treatment.
|
1745 |
23680671
|
In quantification for beta cell apoptosis at day 1 post STZ treatment, the SHP KO mice showed significantly increased anti-apoptotic gene expression and decreased release of apoptotic markers cytochrome c, smac/diablo, and only a few apoptotic beta cells were found in SHP KO pancreas through inactivation of caspase-3, compared to those of WT.
|
1746 |
23682852
|
Compared with normal rats, the content of smooth muscle and B-cell lymphoma 2 (Bcl-2)/Bcl-2-associated X protein (Bax) ratio were dramatically decreased, and penile apoptotic index and expression of activated-caspase-3 were dramatically increased in diabetic rats.
|
1747 |
23686473
|
We also determined Fas/FasL expression was by Western blot.
|
1748 |
23686473
|
Protein levels of Fas and FasL remained unchanged.
|
1749 |
23686473
|
Activation of caspase-3 caused by high glucose is independent of Fas/FasL signaling pathways system.
|
1750 |
23724055
|
Moreover, decreased caspase3 expression and new expression of Ki-67 in the islet cell nuclei suggested alleviated apoptosis and gain of proliferative capability, respectively.
|
1751 |
23740968
|
We found that the Myf5-lineage constitution in subcutaneous WAT depots is negatively correlated to the expression of classical BAT and newly defined beige/brite adipocyte-specific genes.
|
1752 |
23740968
|
Consistently, fluorescent-activated cell sorting (FACS)-purified Myf5-lineage adipo-progenitors give rise to adipocytes expressing lower levels of BAT-specific Ucp1, Prdm16, Cidea, and Ppargc1a genes and beige adipocyte-specific CD137, Tmem26, and Tbx1 genes compared with the non-Myf5-lineage adipocytes from the same depots.
|
1753 |
23740968
|
Strikingly, the Myf5-lineage cells in WAT are heterogeneous and contain distinct adipogenic [stem cell antigen 1(Sca1)-positive] and myogenic (Sca1-negative) progenitors.
|
1754 |
23745582
|
The expression and distribution of claudin-5, occludin, acrolein, 8-OHdG and nitrotyrosine in the rat retinas were detected by immunofluorescent staining.
|
1755 |
23745582
|
The protein level of VEGFR2, Trx-2, Bcl-2, Bax, caspase-3, p53, and NF-κB in the rat retinas were assayed by western blot.
|
1756 |
23745582
|
Four months after subcutaneous injection, the diabetic rats treated with SS31 had better structures of retinal ganglion cells, thinner capillary basement membrane, less iBRB leakage, more uniform staining of claudin-5 and occludin in the retinal vessels, lower levels of acrolein, 8-OHdG, nitrotyrosine, Bax, caspase-3, p53, and NF-κB, and higher levels of Trx-2 and Bcl-2 in the retinas than those treated with N.S.
|
1757 |
23745582
|
In conclusion, SS31 could protect the retinal structures and inhibit the breakdown of iBRB by reducing oxidative damage, increasing Trx-2 and Bcl-2 expression, and decreasing p53, NF-κB, Bax, caspase-3, and VEGFR2 expression in the retinas of diabetic rats.
|
1758 |
23745582
|
The expression and distribution of claudin-5, occludin, acrolein, 8-OHdG and nitrotyrosine in the rat retinas were detected by immunofluorescent staining.
|
1759 |
23745582
|
The protein level of VEGFR2, Trx-2, Bcl-2, Bax, caspase-3, p53, and NF-κB in the rat retinas were assayed by western blot.
|
1760 |
23745582
|
Four months after subcutaneous injection, the diabetic rats treated with SS31 had better structures of retinal ganglion cells, thinner capillary basement membrane, less iBRB leakage, more uniform staining of claudin-5 and occludin in the retinal vessels, lower levels of acrolein, 8-OHdG, nitrotyrosine, Bax, caspase-3, p53, and NF-κB, and higher levels of Trx-2 and Bcl-2 in the retinas than those treated with N.S.
|
1761 |
23745582
|
In conclusion, SS31 could protect the retinal structures and inhibit the breakdown of iBRB by reducing oxidative damage, increasing Trx-2 and Bcl-2 expression, and decreasing p53, NF-κB, Bax, caspase-3, and VEGFR2 expression in the retinas of diabetic rats.
|
1762 |
23745582
|
The expression and distribution of claudin-5, occludin, acrolein, 8-OHdG and nitrotyrosine in the rat retinas were detected by immunofluorescent staining.
|
1763 |
23745582
|
The protein level of VEGFR2, Trx-2, Bcl-2, Bax, caspase-3, p53, and NF-κB in the rat retinas were assayed by western blot.
|
1764 |
23745582
|
Four months after subcutaneous injection, the diabetic rats treated with SS31 had better structures of retinal ganglion cells, thinner capillary basement membrane, less iBRB leakage, more uniform staining of claudin-5 and occludin in the retinal vessels, lower levels of acrolein, 8-OHdG, nitrotyrosine, Bax, caspase-3, p53, and NF-κB, and higher levels of Trx-2 and Bcl-2 in the retinas than those treated with N.S.
|
1765 |
23745582
|
In conclusion, SS31 could protect the retinal structures and inhibit the breakdown of iBRB by reducing oxidative damage, increasing Trx-2 and Bcl-2 expression, and decreasing p53, NF-κB, Bax, caspase-3, and VEGFR2 expression in the retinas of diabetic rats.
|
1766 |
23747317
|
A significant increase in integrin αvβ3 protein and phosphorylated FAK, Erk1/2 and Akt levels was observed in fibrin-cultured INS-1 cells, which was associated with significantly increased cell proliferation and decreased cell apoptosis.
|
1767 |
23747317
|
Integrin αvβ3 blockade affected INS-1 cell spreading on fibrin gels, and resulted in significantly decreased FAK phosphorylation and increased cleaved caspase-3 levels.
|
1768 |
23766563
|
High-mobility group box-1 induces decreased brain-derived neurotrophic factor-mediated neuroprotection in the diabetic retina.
|
1769 |
23766563
|
To test the hypothesis that brain-derived neurotrophic factor-(BDNF-) mediated neuroprotection is reduced by high-mobility group box-1 (HMGB1) in diabetic retina, paired vitreous and serum samples from 46 proliferative diabetic retinopathy and 34 nondiabetic patients were assayed for BDNF, HMGB1, soluble receptor for advanced glycation end products (sRAGE), soluble intercellular adhesion molecule-1 (sICAM-1), monocyte chemoattractant protein-1 (MCP-1), and TBARS.
|
1770 |
23766563
|
The effect of the HMGB1 inhibitor glycyrrhizin on diabetes-induced changes in retinal BDNF expressions was studied.
|
1771 |
23766563
|
BDNF levels were significantly lower in serum samples from diabetic patients compared with nondiabetics, whereas HMGB1, sRAGE, sICAM-1, and TBARS levels were significantly higher in diabetic serum samples.
|
1772 |
23766563
|
There was significant inverse correlation between serum levels of BDNF and HMGB1.
|
1773 |
23766563
|
Diabetes and intravitreal administration of HMGB1 induced significant upregulation of the expression of HMGB1, TBARS, and cleaved caspase-3, whereas the expression of BDNF and synaptophysin was significantly downregulated in rat retinas.
|
1774 |
23766563
|
Our results suggest that HMGB1-induced downregulation of BDNF might be involved in pathogenesis of diabetic retinal neurodegeneration.
|
1775 |
23840309
|
Diabetes was confirmed by hyperglycemia and elevated glycated haemoglobin (HbA1c%), which were associated by weight loss, elevated tumor necrosis factor (TNF)-α and decreased insulin growth factor (IGF)-1β in the serum.
|
1776 |
23840309
|
Such effects were associated by enhancement in both learning and memory as well as apparent normal cellularity in CA1and CA3 areas and reduced Casp-3 expression.
|
1777 |
23845213
|
Serum levels of the inflammatory markers; monocyte chemoattractant protein-1 (MCP-1), C-reactive protein (CRP) and nitrite/nitrate were also determined.
|
1778 |
23845213
|
The liver was isolated and used for determination of malondialdehyde (MDA), reduced glutathione (GSH), caspase-3 and cytochrome c levels.
|
1779 |
23845213
|
All treated groups exhibited significant reductions in serum FFAs, oxidative stress and inflammatory parameters, caspase-3 and cytochrome c levels compared to untreated diabetic rats with the highest improvement observed in the combination group.
|
1780 |
23845213
|
Serum levels of the inflammatory markers; monocyte chemoattractant protein-1 (MCP-1), C-reactive protein (CRP) and nitrite/nitrate were also determined.
|
1781 |
23845213
|
The liver was isolated and used for determination of malondialdehyde (MDA), reduced glutathione (GSH), caspase-3 and cytochrome c levels.
|
1782 |
23845213
|
All treated groups exhibited significant reductions in serum FFAs, oxidative stress and inflammatory parameters, caspase-3 and cytochrome c levels compared to untreated diabetic rats with the highest improvement observed in the combination group.
|
1783 |
23861885
|
To bridge this gap, we developed an artificially engineered model for human beta thalassemia by knocking down beta-globin gene and protein expression in cultured CD34+ cells obtained from healthy adults.
|
1784 |
23861885
|
Beta-globin mRNA was reduced by 90% compared to controls, while alpha-globin mRNA levels were maintained.
|
1785 |
23861885
|
During the terminal phases of differentiation (culture days 14-21), beta-KD cells demonstrated increased levels of insoluble alpha-globin, as well as activated caspase-3.
|
1786 |
23871829
|
In addition, the OPA pretreatment increased the activities of antioxidant enzymes such as catalase, superoxide dismutase, and glutathione peroxidase in STZ-treated pancreatic β cells.
|
1787 |
23871829
|
These effects were mediated by suppressing apoptosis and were associated with increased anti-apoptotic Bcl-xL expression and reduced pro-apoptotic Bax and cleaved caspase-3 expression.
|
1788 |
23877802
|
Cytoplasmic and nuclear fractions of cerebral cortex and hippocampus were prepared for the quantification of oxidative stress (MDA, SOD, and GSH), NF-κB p65 unit, TNF-α, IL-1β, and caspase-3.
|
1789 |
23877802
|
After 7 weeks of streptozotocin injection, the rats produced remarkable increase in escape latency, coupled with increased oxidative stress (increased MDA level and decreased SOD as well as reduced GSH), NF-κB p65 unit, TNF-α, IL-1β, and caspase-3 in different regions of diabetic rat brain.
|
1790 |
23877802
|
Cytoplasmic and nuclear fractions of cerebral cortex and hippocampus were prepared for the quantification of oxidative stress (MDA, SOD, and GSH), NF-κB p65 unit, TNF-α, IL-1β, and caspase-3.
|
1791 |
23877802
|
After 7 weeks of streptozotocin injection, the rats produced remarkable increase in escape latency, coupled with increased oxidative stress (increased MDA level and decreased SOD as well as reduced GSH), NF-κB p65 unit, TNF-α, IL-1β, and caspase-3 in different regions of diabetic rat brain.
|
1792 |
23927369
|
The viability of mouse SVZ-derived NSCs and the involvement of apoptosis (Bcl-2, cleaved caspase-3) and unfolded protein response [C/EBP homologous protein (CHOP) Glucose-regulated protein 78/immunoglobulin heavy-chain binding protein (GRP78/BiP), spliced X-box binding protein 1 (XBP1), c-Jun N-terminal kinases (JNK) phosphorylation] were assessed in the presence of glucolipotoxic conditions after 24 h.
|
1793 |
23985558
|
Exposure to 25 mM glucose significantly reduced insulin content (p<0.05) and glucokinase activity (p<0.01) after 72 h.
|
1794 |
23985558
|
Effects of hyperglycemia on secretory function were accompanied by decreased mRNA expression of INS, GCK, PCSK1, PCSK2, PPP3CB, GJA1, ABCC8, and KCNJ11.
|
1795 |
23985558
|
Hyperglycemia-induced apoptosis was evident from increased activity of caspase 3/7 and decreased BCL2 protein.
|
1796 |
23986202
|
Secretion of GLP-1 has been suggested to be impaired in T2D and in conditions associated with hyperlipidemia and insulin resistance.
|
1797 |
23986202
|
However, little is known about the regulation of L-cell viability/function, the effects of insulin signaling, or the potential effects of stable GLP-1 analogs and dipeptidyl peptidase-4 (DPP-4) inhibitors.
|
1798 |
23986202
|
We determined effects of insulin as well as possible autocrine action of GLP-1 on viability/apoptosis of GLP-1-secreting cells in the presence/absence of palmitate, while also assessing direct effects on function.
|
1799 |
23986202
|
Our results show that palmitate induced production of reactive oxygen species and caspase-3 activity and reduced cell viability are significantly attenuated by preincubation with insulin/exendin-4.
|
1800 |
23986202
|
The indicated lipoprotective effect of insulin/exendin-4 was not detectable in the presence of the GLP-1 receptor (GLP-1R) antagonist exendin (9-39) and attenuated in response to pharmacological inhibition of exchange protein activated by cAMP (Epac) signaling, while protein kinase A inhibition had no significant effect.
|
1801 |
23986202
|
Insulin/exendin-4 also significantly stimulate acute and long-term GLP-1 secretion in the presence of glucose, suggesting novel beneficial effects of insulin signaling and GLP-1R activation on glycemia through enhanced mass of GLP-1-producing cells and enhanced GLP-1 secretion.
|
1802 |
23986202
|
In addition, the effects of insulin indicate that not only is GLP-1 important for insulin secretion but altered insulin signaling may contribute to an altered GLP-1 secretion.
|
1803 |
24001204
|
The IgG-positive cells showed low expression of beta-catenin and were amylase-, cytokeratin-, insulin-, and glucagon-negative.
|
1804 |
24001204
|
Flow cytometric analysis showed that the IgG-positive cells were also positive for CD45, Sca-1, c-Kit, CD49f, and CD133, and negative for Flk-1, suggesting that they were undifferentiated hematopoietic cells.
|
1805 |
24001204
|
On day 5 after streptozotocin treatment, the percentage of periductal IgG-positive cells increased to 3.37% of total pancreatic cells, and the periductal IgG-positive cells formed multiple layers (beta-catenin-low, and amylase-, cytokeratin-, insulin-, glucagon-negative).
|
1806 |
24008114
|
Expression of basic fibroblast growth factor, protein kinase C and members of the apoptotic pathway in skeletal muscle of streptozotocin-induced diabetic rats.
|
1807 |
24008114
|
Protein and mRNA levels of basic FGF (bFGF), bax, bcl-2, and caspase 3 in skeletal muscle were compared between the 2 groups using immunohistochemistry and quantitative PCR, respectively.
|
1808 |
24008114
|
Serum level of insulin and protein kinase C (PKC) were measured by competitive RIA and ELISA, respectively.
|
1809 |
24008114
|
Protein and mRNA levels of the apoptosis promoting genes caspase-3 and bax were higher in skeletal muscle from STZ-induced diabetic rats as compared to control animals (P<0.001 and P=0.037, respectively), while mRNA and protein levels of bcl-2, an inhibitor of apoptosis, was lower in STZ-induced diabetic rats versus control animals (P=0.026).
|
1810 |
24008114
|
Expression of basic fibroblast growth factor, protein kinase C and members of the apoptotic pathway in skeletal muscle of streptozotocin-induced diabetic rats.
|
1811 |
24008114
|
Protein and mRNA levels of basic FGF (bFGF), bax, bcl-2, and caspase 3 in skeletal muscle were compared between the 2 groups using immunohistochemistry and quantitative PCR, respectively.
|
1812 |
24008114
|
Serum level of insulin and protein kinase C (PKC) were measured by competitive RIA and ELISA, respectively.
|
1813 |
24008114
|
Protein and mRNA levels of the apoptosis promoting genes caspase-3 and bax were higher in skeletal muscle from STZ-induced diabetic rats as compared to control animals (P<0.001 and P=0.037, respectively), while mRNA and protein levels of bcl-2, an inhibitor of apoptosis, was lower in STZ-induced diabetic rats versus control animals (P=0.026).
|
1814 |
18839335
|
Resistin, an adipokine-linked obesity with type 2 diabetes, impairs glucose-stimulated insulin secretion (GSIS) in beta-cells.
|
1815 |
18839335
|
Tissue Inhibitor of Metalloproteinase-1 (TIMP-1) protected resistin-mediated cytotoxicity in RINm5F.
|
1816 |
18839335
|
Incubation with resistin up-regulated caspase-3 activity and induced the formation of a DNA ladder.
|
1817 |
18839335
|
The molecular mechanism of TIMP-1 inhibition of resistin-mediated cytotoxicity appeared to involve Akt phosphorylation and activation of IkB-alpha phosphorylation.
|
1818 |
18839335
|
Resistin treatment suppressed Akt phosphorylation and activated IkB-alpha phosphorylation, which could be attenuated by TIMP-1.
|
1819 |
18839335
|
We conclude that resistin can induce beta-cell apoptosis and that resistin-related beta-cell apoptosis can be prevented by TIMP-1.
|
1820 |
14978257
|
Phorbol 12-myristate 13-acetate protects Jurkat cells from methylglyoxal-induced apoptosis by preventing c-Jun N-terminal kinase-mediated leakage of cytochrome c in an extracellular signal-regulated kinase-dependent manner.
|
1821 |
14978257
|
We showed previously that Jurkat cells treated with MG rapidly undergo apoptosis via c-Jun N-terminal kinase (JNK) activation.
|
1822 |
14978257
|
The results showed the following: 1) PMA can prevent MG-induced apoptosis; 2) triggering of this antiapoptotic signal depends on the mitogen-activated protein kinase kinase/extracellular signal-regulated kinase (ERK) pathway; 3) PMA inhibits MG-induced activation of caspase-3 and caspase-9, release of cytochrome c, and decline of mitochondrial membrane potential, but it does not affect MG-induced JNK activation; 4) the ERK pathway modulates outer mitochondrial membrane permeability and regulates the mitochondrial death machinery; and 5) activated ERK prevents JNK-induced leakage of cytochrome c from isolated mitochondria.
|
1823 |
14978257
|
Taken together, these results suggest that PMA-induced ERK activation can protect Jurkat cells from methylglyoxal-induced apoptosis and that activated ERK exerts its antiapoptotic effects on mitochondria by inhibiting activated JNK-induced permeabilization of the outer mitochondrial membrane.
|
1824 |
18042735
|
In the present study, the effect of cyclosporin A and the dual leucine-zipper-bearing kinase (DLK) on beta-cell survival was investigated.
|
1825 |
18042735
|
Upon exposure to the immunosuppressant fragmentation of DNA, the activation of the effector caspase-3 and a decrease of full-length caspase-3 and Bcl(XL) were observed in HIT cells and in primary mature murine islets, respectively.
|