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Gene Information

Gene symbol: CASP3

Gene name: caspase 3, apoptosis-related cysteine peptidase

HGNC ID: 1504

Synonyms: CPP32, CPP32B, Yama, apopain

Related Genes

# Gene Symbol Number of hits
1 ABCC8 1 hits
2 ACLY 1 hits
3 ACO2 1 hits
4 ACPP 1 hits
5 ACTB 1 hits
6 ACTC1 1 hits
7 AGT 1 hits
8 AGTR1 1 hits
9 AHSA1 1 hits
10 AIFM1 1 hits
11 AK2 1 hits
12 AKR1B1 1 hits
13 AKT1 1 hits
14 ALB 1 hits
15 ALDH1A1 1 hits
16 ALPI 1 hits
17 ANGPT2 1 hits
18 APLN 1 hits
19 APLP2 1 hits
20 APP 1 hits
21 AQP4 1 hits
22 ARHGEF2 1 hits
23 ATF3 1 hits
24 ATF4 1 hits
25 ATXN1 1 hits
26 AURKA 1 hits
27 BACE1 1 hits
28 BAD 1 hits
29 BAK1 1 hits
30 BAX 1 hits
31 BCL2 1 hits
32 BCL2L1 1 hits
33 BDNF 1 hits
34 BECN1 1 hits
35 BIRC2 1 hits
36 BIRC5 1 hits
37 BMF 1 hits
38 BMP7 1 hits
39 CA1 1 hits
40 CA3 1 hits
41 CALCR 1 hits
42 CAMK2G 1 hits
43 CAPN10 1 hits
44 CAPN2 1 hits
45 CASP1 1 hits
46 CASP12 1 hits
47 CASP2 1 hits
48 CASP7 1 hits
49 CASP8 1 hits
50 CASP9 1 hits
51 CASR 1 hits
52 CAT 1 hits
53 CCK 1 hits
54 CCL2 1 hits
55 CCND1 1 hits
56 CCRK 1 hits
57 CD34 1 hits
58 CD4 1 hits
59 CD44 1 hits
60 CD47 1 hits
61 CD8A 1 hits
62 CDK2AP2 1 hits
63 CDKN1A 1 hits
64 CDKN1B 1 hits
65 CEBPA 1 hits
66 CFLAR 1 hits
67 CLDN5 1 hits
68 CNBP 1 hits
69 COL18A1 1 hits
70 COL1A1 1 hits
71 COQ10A 1 hits
72 COX8A 1 hits
73 CREB1 1 hits
74 CRMP1 1 hits
75 CRP 1 hits
76 CSF2 1 hits
77 CTGF 1 hits
78 CTNNB1 1 hits
79 CTSK 1 hits
80 CYBA 1 hits
81 CYBB 1 hits
82 CYCS 1 hits
83 CYP24A1 1 hits
84 DDIT3 1 hits
85 DEAF1 1 hits
86 DFFB 1 hits
87 DIABLO 1 hits
88 DLK1 1 hits
89 DNTT 1 hits
90 EBP 1 hits
91 EIF2A 1 hits
92 EIF4G3 1 hits
93 ENO2 1 hits
94 EPC2 1 hits
95 EPO 1 hits
96 EWSR1 1 hits
97 FAM3B 1 hits
98 FAS 1 hits
99 FASLG 1 hits
100 FLI1 1 hits
101 FOS 1 hits
102 FOXM1 1 hits
103 FOXO1 1 hits
104 FOXP3 1 hits
105 FUS 1 hits
106 GAPDH 1 hits
107 GCG 1 hits
108 GFAP 1 hits
109 GHRL 1 hits
110 GJA1 1 hits
111 GK 1 hits
112 GLP1R 1 hits
113 GPI 1 hits
114 GSK3B 1 hits
115 GSN 1 hits
116 GSR 1 hits
117 GSTCD 1 hits
118 GTF2A1 1 hits
119 HBA2 1 hits
120 HCRTR1 1 hits
121 HFE 1 hits
122 HGF 1 hits
123 HIF1A 1 hits
124 HLA-B 1 hits
125 HMGB1 1 hits
126 HMOX1 1 hits
127 HOXB4 1 hits
128 HSPA1A 1 hits
129 HSPA5 1 hits
130 HSPB1 1 hits
131 HTRA2 1 hits
132 IAPP 1 hits
133 ICAM1 1 hits
134 IFI44 1 hits
135 IFNG 1 hits
136 IGF1 1 hits
137 IGF1R 1 hits
138 IHG1 1 hits
139 IL12A 1 hits
140 IL17A 1 hits
141 IL1A 1 hits
142 IL1B 1 hits
143 IL23A 1 hits
144 IL2RA 1 hits
145 IL4 1 hits
146 IL6 1 hits
147 IL7R 1 hits
148 INDO 1 hits
149 ING1 1 hits
150 INS 1 hits
151 INSR 1 hits
152 IRS1 1 hits
153 IRS2 1 hits
154 ITGA6 1 hits
155 ITGAM 1 hits
156 ITGB1 1 hits
157 JUN 1 hits
158 JUP 1 hits
159 KDR 1 hits
160 KIT 1 hits
161 KITLG 1 hits
162 LEP 1 hits
163 LGR6 1 hits
164 LPL 1 hits
165 MAP3K5 1 hits
166 MAPK1 1 hits
167 MAPK10 1 hits
168 MAPK14 1 hits
169 MAPK3 1 hits
170 MAPK6 1 hits
171 MAPK8 1 hits
172 MAPK8IP1 1 hits
173 MCL1 1 hits
174 MDM2 1 hits
175 MFGE8 1 hits
176 MFN2 1 hits
177 MGP 1 hits
178 MIRN15A 1 hits
179 MKI67 1 hits
180 MYC 1 hits
181 MYCN 1 hits
182 MYF5 1 hits
183 NCF2 1 hits
184 NDUFB8 1 hits
185 NES 1 hits
186 NFE2L2 1 hits
187 NFKB1 1 hits
188 NGF 1 hits
189 NGFR 1 hits
190 NOS1 1 hits
191 NOS2A 1 hits
192 NOS3 1 hits
193 NOTCH1 1 hits
194 NOX4 1 hits
195 NOX5 1 hits
196 NR0B2 1 hits
197 NR5A1 1 hits
198 NT5E 1 hits
199 NTRK1 1 hits
200 NTSR1 1 hits
201 NUDT6 1 hits
202 OCLN 1 hits
203 ODC1 1 hits
204 OGT 1 hits
205 P2RY1 1 hits
206 P2RY13 1 hits
207 P2RY6 1 hits
208 PAK2 1 hits
209 PARP1 1 hits
210 PCNA 1 hits
211 PDCD1 1 hits
212 PDZD2 1 hits
213 PECAM1 1 hits
214 PI3 1 hits
215 PIK3CA 1 hits
216 PIK3CG 1 hits
217 PKN1 1 hits
218 PKN2 1 hits
219 POU5F1 1 hits
220 PPARA 1 hits
221 PPARG 1 hits
222 PPARGC1A 1 hits
223 PPID 1 hits
224 PPIF 1 hits
225 PRKAA1 1 hits
226 PRKAR2A 1 hits
227 PRKCA 1 hits
228 PROM1 1 hits
229 PSIP1 1 hits
230 PSMD9 1 hits
231 PTGS1 1 hits
232 PTGS2 1 hits
233 PTK2 1 hits
234 PTPN6 1 hits
235 PTPRC 1 hits
236 RAC1 1 hits
237 RAF1 1 hits
238 RASA1 1 hits
239 RB1 1 hits
240 REL 1 hits
241 RETN 1 hits
242 RHOD 1 hits
243 RNF123 1 hits
244 ROCK1 1 hits
245 RPS27A 1 hits
246 RUNX2 1 hits
247 S100A4 1 hits
248 SERPINA1 1 hits
249 SERPINB9 1 hits
250 SERPINE1 1 hits
251 SERPINF1 1 hits
252 SETD2 1 hits
253 SIGLEC7 1 hits
254 SLC25A4 1 hits
255 SLC25A6P1 1 hits
256 SLC2A1 1 hits
257 SMAD2 1 hits
258 SOD1 1 hits
259 SOD2 1 hits
260 SOD3 1 hits
261 SON 1 hits
262 SST 1 hits
263 SYP 1 hits
264 TEK 1 hits
265 TFAM 1 hits
266 TGFA 1 hits
267 TGFB1 1 hits
268 TGFB2 1 hits
269 TGFBR1 1 hits
270 TIPARP 1 hits
271 TNF 1 hits
272 TNFRSF10A 1 hits
273 TNFRSF1A 1 hits
274 TNFSF10 1 hits
275 TOP1 1 hits
276 TP53 1 hits
277 TRAF2 1 hits
278 TRIM63 1 hits
279 TRPC6 1 hits
280 TSC2 1 hits
281 TXN 1 hits
282 TXN2 1 hits
283 TXNIP 1 hits
284 TYMS 1 hits
285 UCP2 1 hits
286 VCAM1 1 hits
287 VEGFA 1 hits
288 WNT4 1 hits
289 WNT5A 1 hits
290 WNT7B 1 hits
291 XBP1 1 hits
292 XIAP 1 hits

Related Sentences

# PMID Sentence
1 8747854 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.
2 8747854 Linkage was excluded to HLA DR2, and a normal sized SCA1 repeat was observed.
3 8747854 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.
4 8747854 Linkage was excluded to HLA DR2, and a normal sized SCA1 repeat was observed.
5 9159148 Western blot analyses using antibodies directed against specific apoptotic proteases (interleukin 1beta converting enzyme, Nedd-2, and Apopain/CPP 32) confirmed these findings.
6 9748221 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.
7 9748221 Whereas PPARalpha is already present in undifferentiated monocytes, PPARgamma expression is induced upon differentiation into macrophages.
8 9748221 Immunocytochemistry analysis demonstrates that PPARalpha resides constitutively in the cytoplasm, whereas PPARgamma is predominantly nuclear localized.
9 9748221 Transient transfection experiments indicate that PPARalpha and PPARgamma are transcriptionally active after ligand stimulation.
10 9748221 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.
11 9748221 However, both PPARalpha and PPARgamma ligands induce apoptosis of macrophages activated with tumor necrosis factor alpha/interferon gamma.
12 9748221 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.
13 10078546 Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
14 10078546 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.
15 10078546 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.
16 10078546 Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
17 10078546 Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
18 10078546 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.
19 10078546 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.
20 10078546 Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
21 10078546 Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
22 10078546 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.
23 10078546 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.
24 10078546 Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
25 10078546 Essential role of caspase-3 in apoptosis of mouse beta-cells transfected with human Fas.
26 10078546 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.
27 10078546 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.
28 10078546 Furthermore, an antisense caspase-3 construct blocked caspase-3 activation and substantially suppressed Fas-triggered apoptosis of hFas/betaTC1 cells.
29 10099840 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.
30 10099840 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.
31 10099840 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.
32 10099840 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.
33 10099840 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.
34 10099840 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.
35 10811232 Like pancreatic beta cells, betaTC-3 cells do not constitutively express Fas, but Fas expression can be induced with IL-1 and IFN-gamma.
36 10811232 After IL-1/IFN-gamma treatment, betaTC-3 cells transfected with the anti-Fas ribozyme expressed 80% less Fas compared with mock-transfected cells.
37 10811232 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.
38 10830283 Cytokines induce both necrosis and apoptosis via a common Bcl-2-inhibitable pathway in rat insulin-producing cells.
39 10830283 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.
40 10830283 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.
41 10830283 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.
42 10830283 Tumor necrosis factor-alpha alone did not clearly induce cell death or poly(ADP-ribose) polymerase-cleavage.
43 10830283 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.
44 10840014 High glucose-induced apoptosis in human endothelial cells is mediated by sequential activations of c-Jun NH(2)-terminal kinase and caspase-3.
45 10940305 The glucagon-like peptide-2 receptor mediates direct inhibition of cellular apoptosis via a cAMP-dependent protein kinase-independent pathway.
46 10940305 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.
47 10940305 We show here that activation of GLP-2R signaling inhibits cycloheximide-induced apoptosis in baby hamster kidney fibroblasts expressing a transfected GLP-2 receptor.
48 10940305 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.
49 10940305 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.
50 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.
51 10940305 The glucagon-like peptide-2 receptor mediates direct inhibition of cellular apoptosis via a cAMP-dependent protein kinase-independent pathway.
52 10940305 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.
53 10940305 We show here that activation of GLP-2R signaling inhibits cycloheximide-induced apoptosis in baby hamster kidney fibroblasts expressing a transfected GLP-2 receptor.
54 10940305 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.
55 10940305 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.
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.
57 11007772 Expression of constitutively active phosphatidylinositol 3-kinase inhibits activation of caspase 3 and apoptosis of cardiac muscle cells.
58 11007772 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.
59 11007772 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.
60 11007772 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.
61 11007772 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.
62 11007772 Expression of constitutively active phosphatidylinositol 3-kinase inhibits activation of caspase 3 and apoptosis of cardiac muscle cells.
63 11007772 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.
64 11007772 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.
65 11007772 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.
66 11007772 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.
67 11027130 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.
68 11027130 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.
69 11027130 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.
70 11027130 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.
71 11027130 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.
72 11027130 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.
73 11159358 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.
74 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.
75 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).
76 11159358 Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
77 11159358 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.
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.
79 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).
80 11159358 Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
81 11159358 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.
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.
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).
84 11159358 Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
85 11159358 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.
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.
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).
88 11159358 Chromatin degradation is apparently mediated by the activation of caspase-3 and CAD.
89 11230775 Ornithine decarboxylase (ODC) activity, ratio of fragmented DNA to total DNA, electrophoresis of fragmented DNA, and Western blot analysis of caspase-3 were examined.
90 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.
91 11375350 On the other hand, p38 mitogen-activated protein kinase (MAPK) was markedly phosphorylated and showed sustained phosphorylation after stimulation.
92 11375350 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.
93 11375350 Importantly, caspase inhibitors significantly attenuated the sustained phosphorylation of p38 MAPK induced by high D-glucose.
94 11375350 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.
95 11375350 Importantly, kinase-inactive MEKK1 also blocked the phosphorylation of p38 MAPK induced by high D-glucose.
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.
97 11375350 Phosphorylation of p38 MAPK downstream of the bax-caspase pathway may play a pivotal role in endothelial apoptosis mediated by high D-glucose.
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.
99 11375350 On the other hand, p38 mitogen-activated protein kinase (MAPK) was markedly phosphorylated and showed sustained phosphorylation after stimulation.
100 11375350 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.
101 11375350 Importantly, caspase inhibitors significantly attenuated the sustained phosphorylation of p38 MAPK induced by high D-glucose.
102 11375350 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.
103 11375350 Importantly, kinase-inactive MEKK1 also blocked the phosphorylation of p38 MAPK induced by high D-glucose.
104 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.
105 11375350 Phosphorylation of p38 MAPK downstream of the bax-caspase pathway may play a pivotal role in endothelial apoptosis mediated by high D-glucose.
106 11563854 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.
107 11563854 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.
108 11756336 In addition, the phosphorylation of Akt in the presence of 150 microU/ml insulin was impaired.
109 11756336 Likewise, expression of a constitutively active AMPK in HUVEC prevented the increase in caspase-3 activity.
110 11756336 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.
111 11756336 In addition, the phosphorylation of Akt in the presence of 150 microU/ml insulin was impaired.
112 11756336 Likewise, expression of a constitutively active AMPK in HUVEC prevented the increase in caspase-3 activity.
113 11756336 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.
114 11770125 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.
115 11770125 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.
116 11812738 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.
117 11812738 As assessed by either annexin V staining or DNA fragmentation, IL-1beta caused INS-1 cells to undergo apoptosis.
118 11812738 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.
119 11911839 p53-Independent induction of Fas and apoptosis in leukemic cells by an adenosine derivative, Cl-IB-MECA.
120 11911839 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.
121 11911839 Cl-IB-MECA failed to activate phospholipase C in HL-60 cells, while UTP activated it through endogenous P2Y(2) receptors.
122 11911839 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.
123 11911839 Therefore, Cl-IB-MECA induced apoptosis via a novel, p53-independent up-regulation of Fas.
124 11994455 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.
125 11994455 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.
126 11994455 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.
127 12031984 Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
128 12031984 We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
129 12031984 Correspondingly, caspase-3 activation as determined by enzymatic assay and mitochondrial cytochrome c release detected by Western blotting analysis were observed.
130 12031984 Caspase-3 activation with a concomitant mitochondrial cytochrome c release was also observed.
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.
132 12031984 Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
133 12031984 We tested the hypothesis that apoptotic cell death occurs in the diabetic myocardium through mitochondrial cytochrome c-mediated caspase-3 activation pathway.
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.
137 12031984 Hyperglycemia-induced apoptosis in mouse myocardium: mitochondrial cytochrome C-mediated caspase-3 activation pathway.
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.
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.