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PMID |
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1 |
8971075
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The reactivating kinase (RK, also known as p38 mitogen activated protein kinase) is induced by insulin, hydrogen peroxide, or sodium meta-arsenite in hepatoma cells, and these effects are blocked by SB203580, a selective inhibitor of RK.
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2 |
12032139
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A further analysis revealed that SOCS-1 deficiency results in augmented TNF signaling via the p38 mitogen-activated protein kinase pathway but not NFkappaB or c-Jun N-terminal kinase pathways.
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3 |
12783777
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High glucose increased p42/44 and p38 MAP kinase activity in human endothelial cells, but only p38 MAP kinase mediated the antiproliferative growth response through the effects of autocrine TGF-beta1.
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4 |
12837666
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However, stretch had no effect on Akt in the slow-twitch soleus muscle, although there was a robust phosphorylation of the stress-activated protein kinase p38.
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5 |
12937895
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Thus we determined p38 MAPK protein expression and phosphorylation in skeletal muscle from Type 2 diabetic patients and non-diabetic subjects.
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6 |
12937895
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In vitro effects of insulin (120 nmol/l) or AICAR (1 mmol/l) on p38 MAPK expression and phosphorylation were determined in skeletal muscle from non-diabetic (n=6) and Type 2 diabetic (n=9) subjects. p38 MAPK protein expression was similar between Type 2 diabetic patients and non-diabetic subjects.
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7 |
12937895
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Insulin exposure increased p38 MAPK phosphorylation in non-diabetic, but not in Type 2 diabetic patients.
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8 |
12937895
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Insulin increases p38 MAPK phosphorylation in skeletal muscle from non-diabetic subjects, but not in Type 2 diabetic patients.
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9 |
12937895
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However, basal p38 MAPK phosphorylation is increased in skeletal muscle from Type 2 diabetic patients.
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10 |
12937895
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Thus, aberrant p38 MAPK signalling might contribute to the pathogenesis of insulin resistance.
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11 |
15157702
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This study examined the effect of a p38alpha MAPK inhibitor, SD-282, on mechanical allodynia, thermal hyperalgesia, and formalin-evoked nociception in streptozotocin-induced diabetic rats.
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12 |
15051799
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AA-mediated Erk1/2 and p38 MAPK activation was detectable at 3 h post-treatment with maximal activation occurring at 12 h.
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13 |
15051799
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NAC and Trolox also ameliorated AA-mediated Erk1/2 and p38 MAPK activation, suggesting that this activation is associated with ROS and oxidative stress.
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14 |
15145956
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Inhibition of the p38 pathway using 5 microm SB203580 significantly reduced glucose-mediated IL-8 mRNA production by 60%.
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15 |
15145956
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Thus, glucose-stimulated monocyte adhesion is primarily regulated through phosphorylation of p38 with subsequent activation of AP-1, leading to IL-8 production.
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16 |
15145956
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Taken together, these data indicate that chronic elevated glucose in diabetes activates the p38 MAP kinase pathway to increase inflammatory IL-8 gene induction and monocyte/endothelial adhesion.
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17 |
15589481
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TQ has no effect on either IkB degradation or NF-kB activation; however, it significantly inhibited both p44/42 and p38 mitogen-activated protein kinases (MAPKs) which contribute to the transcriptional machinery of inducible nitric oxide synthase and NO production.
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18 |
15753227
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TNF-alpha and glucose induced a dose- and time-dependent activation of the p38 MAP kinase, the downstream kinase mitogen- and stress-activated kinase 1, and the transcription factor cAMP-responsive element-binding protein (CREB), in EPCs.
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19 |
15753227
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The increased numbers of EPCs by SB203580 were associated with an augmentation of EPC proliferation and a reduction of cells expressing the monocytic marker proteins CD14 and CD64, suggesting that p38 regulates proliferation and differentiation events.
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20 |
15780081
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Inhibition of p38(mapk) or p42/44(mapk) activities did not affect LDL-induced TGF-beta1, CTGF, and collagen I expression, whereas inhibition of c-Jun NH2-terminal kinase (JNK) suppressed LDL-induced TGF-beta, CTGF, and collagen I expression.
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21 |
15955132
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Western blot analysis further revealed that high-fat diet feeding induced overt nuclear O-Glc-NAc modification and p38 mitogen-activated protein kinase activation in heart and liver although not in kidney samples of the high-fat diet-fed rats.
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22 |
16178743
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Over the past decade, the design and development of a small molecule that selectively inhibits the p38 mitogen activated protein (MAP) kinase has clearly emerged as one of these challenges within the industry.
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23 |
16298615
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In this study, we have improved human islet cryopreservation methods under serum-free conditions using an intracellular-based islet cryopreservation solution (ICS), especially supplemented with a p38 pathway inhibitor (p38IH) to suppress p38 mitogen-activated protein kinase (MAPK) activation.
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24 |
16272151
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In examining the mechanism, inhibition of p38 suppressed gluconeogenesis in liver, along with expression of key gluconeogenic genes, including phosphoenolpyruvate carboxykinase and glucose-6-phosphatase.
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25 |
16272151
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We have shown that inhibition of p38 prevented transcription of the PPARgamma coactivator 1alpha gene as well as phosphorylation of cAMP-response element-binding protein.
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26 |
16380497
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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.
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27 |
16293713
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In contrast, PD98059 (2'-amino-3'-methoxyflavone), an inhibitor of mitogen-activated protein kinase kinase, SP600125 (1,9-pyrazoloanthrone), an inhibitor of c-Jun N-terminal kinase, SB203580 [4-(4-fluorophenyl)-2-(4-methylsulfinylphenyl)-5-(4-pyridyl)1H-imadazole], an inhibitor of p38 mitogen-activated protein kinase, or bisindolylmaleimide, a broad spectrum inhibitor of protein kinase C, did not inhibit the insulin-mediated increase in alpha-class GST protein levels in hepatocytes.
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28 |
16355109
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The aim of this study was to investigate the effects of the p38 MAPK inhibitor, LY2161793, on penile neurovascular function in streptozotocin-induced diabetic mice.
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29 |
16355109
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Thus, p38 MAPK inhibition corrects nitric oxide-dependent indices of diabetic erectile autonomic neuropathy and vasculopathy, a therapeutic approach potentially worthy of consideration for clinical trials.
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30 |
16620308
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These studies find possible roles for histone deacetylase 5 (HDAC5), adenosine monophosphate-activated protein kinase (AMPK), peroxisome proliferator-activated receptor gamma coactivator 1alpha (PGC-1alpha) and p38 mitogen-activated protein kinase (MAPK) in regulating MEF2 through a series of complex interactions potentially involving MEF2 repression, coactivation and phosphorylation. 4.
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31 |
16873694
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We further found that activated stress signaling p38, but not Jun NH(2)-terminal kinase, was involved in PTEN upregulation.
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32 |
16873694
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The p38 target transcriptional factor activating transcription factor (ATF)-2 bound to the PTEN promoter, which was increased by palmitic acid treatment.
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33 |
16873694
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Palmitic acid inhibits insulin signaling by promoting PTEN activity and its transcription through p38 and its downstream transcription factor ATF-2.
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34 |
16803882
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The FFA-induced expression of PEPCK and PGC-1alpha genes and gluconeogenesis in isolated hepatocytes could be blocked by the inhibition of p38.
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35 |
16803882
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Furthermore, PGC-1alpha phosphorylation by p38 was necessary for FFA-induced activation of the PEPCK promoter.
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36 |
16807249
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Using cultured hepatoma cells, we find that activation of p38 enhances expression of hepatic gluconeogenic gene phosphoenolpyruvate carboxykinase (PEPCK).
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37 |
16807249
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Furthermore, our studies demonstrate that activation of p38 stimulates phosphorylation of CCAAT/enhancer-binding protein alpha (C/EBPalpha) at serine 21 and increases its transactivation activity in the context of PEPCK gene transcription.
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38 |
16960379
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Inhibition of p38 mitogen-activated protein kinase (p38 MAP kinase), which mediates responses to oxidative stress, suppressed the induction of PEPCK mRNA by BSO.
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39 |
17331110
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In this study, a p38 MAPK inhibitor (p38IH) was applied to human islet cryopreservation to improve islet yield and quality after thawing.
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40 |
17401436
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In summary, renal cortical p38 activity was increased in diabetic rats at early and advanced stages of nephropathy, as compared with non-diabetic animals, and attenuated by improved metabolic control. p38 activation in diabetes is likely to occur via multiple pathways and cannot be explained by downregulation of MKP-1.
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41 |
17555594
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The inhibition of the glucose transporter GLUT1 by phloretin notably reduces TXNIP RNA level and the inhibition of the p38 MAP kinase activity by SB203580 reverses the effects of TXNIP on ROS-TRX activity.
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42 |
17709097
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The p38 mitogen-activated protein kinase (MAPK) has been proposed to be a component of AMPK-mediated signaling.
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43 |
17709097
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AMPK phosphorylation was significantly increased, but there was no change in p38 MAPK phosphorylation.
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44 |
17709097
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AMPKalpha2i TG mice did not exhibit any defect in basal or contraction-induced p38 MAPK phosphorylation.
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45 |
17709097
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Despite activated AMPK, basal p38 MAPK phosphorylation was not different between wild type and gamma1R70Q TG mice.
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46 |
17709097
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In addition, muscle contraction-induced p38 MAPK phosphorylation was significantly blunted in the gamma1R70Q TG mice.
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47 |
17709097
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In conclusion, increasing AMPK activity by AICAR and AMPKgamma1 mutation does not increase p38 MAPK phosphorylation in skeletal muscle.
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48 |
17709097
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Furthermore, AMPKalpha2i TG mice lacking contraction-stimulated AMPK activity have normal p38 MAPK phosphorylation.
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49 |
17786081
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Acting through 2 distinct membrane receptors, adiponectin receptors 1 and 2 (which utilize 5'-adenosine monophosphate-activated protein kinase phosphorylation, p38 mitogen-activated protein kinase, and peroxisome proliferator-activated receptor alpha as key cell signaling elements), adiponectin increases hepatic and skeletal muscle sensitivity to insulin, enhances fatty acid oxidation, suppresses monocyte-endothelial interaction, supports endothelial cell growth, lowers blood pressure, and moderates adipose tissue growth.
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50 |
17623817
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In cultured C2C12 myotubes, acute suppression of PI3K activity led to decreased PTEN expression, while palmitic acid increased PTEN in myotubes in a p38-dependent fashion.
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51 |
17684012
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In scanning for signaling events downstream of the Frizzled-2/G alpha t2/PDE6 triad activated in response to Wnt5a, we observed a strong activation of the mitogen-activated protein kinase p38 in mouse F9 teratocarcinoma embryonal cells.
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52 |
17684012
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Dishevelled is not required for Wnt5a activation of p38; siRNAs targeting Dishevelleds and expression of the Dishevelled antagonist Dapper-1 do not suppress the p38 response to Wnt5a stimulation.
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53 |
18003719
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Activation of p38 MAPK by anisomycin was associated with marked and persistent elevation in IRS-1 serine phosphorylation.
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54 |
18003719
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We conclude that insulin protects myocardium against ischemia-reperfusion injury when given prior to ischemia or reperfusion, and activation of p38 MAPK abolishes insulin's cardioprotective effect.
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55 |
18223258
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Blocking both Smad2/3 and p38 MAP kinase pathways prevented the effect of TGF-beta to increase proteoglycan to LDL binding.
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56 |
18223258
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TGF-beta mediates its effects on proteoglycan synthesis in VSMCs via the ALK5/Smad2/3 phosphorylation pathway as well as via the p38 MAP kinase signaling cascade.
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57 |
17940160
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In this regard, the Ser(307) residue in IRS-1 has been identified as a site for the inhibitory effects of TNF-alpha in myotubes, with p38 mitogen-activated protein kinase and inhibitor kB kinase being involved in the phosphorylation of this residue.
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58 |
18593820
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The TNF-alpha treatment was thought to activate c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein kinase (MAPK), and NF-kappaB inflammatory signals, since TNF-alpha increased phospho-JNK and phospho-p38 and reduced I kappaB levels.
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59 |
18593820
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These data demonstrate that TNF-alpha inhibits GSIS by reducing the glucose-stimulated Ca(2)(+) influx, possibly through the activation of JNK and p38 MAPK and NF-kappaB inflammatory signals.
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60 |
18591389
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Phosphatidylinositol 3-kinase and p38 inhibitors prevented Nnat-mediated activation of NF-kappaB-induced gene expression.
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61 |
18835932
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Inhibition of p38 kinase with SB239063, which had no effect on AICAR-induced AMPK-Thr172 phosphorylation, dose dependently suppressed AICAR-induced upregulation of UCP-2, suggesting that AMPK lies upstream of p38 kinase.
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62 |
19188511
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In contrast, blockade of AMP-activated protein kinase, calcium/calmodulin-dependent kinase II, calcium/calmodulin-dependent kinase kinase, serine/threonine protein kinase B, protein kinase A, extracellular signal-regulated kinase 1/2, and p38 mitogen-activated protein kinase did not affect nucleotide-mediated eNOS phosphorylation.
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63 |
19107852
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SB203580, a p38 inhibitor, mimicked the FAS inhibition effect of genistein, suggesting that the inhibitory effect of genistein on FAS was partially via the p38 pathway.
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64 |
19571577
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Increased ALP activity was inhibited by the p38 MAPK inhibitor or anti-RAGE blocking antibody.
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65 |
19571577
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Furthermore, the p38 MAPK inhibitor and anti-RAGE blocking antibody both inhibited AGE-induced calcification of vascular smooth muscle cells.
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66 |
19696094
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There was no difference in hepatic microsomal production of acrolein from CY or urinary hydroxypropyl mercapturic acid output between WT and GSTP-null mice, but CY induced greater c-Jun NH(2)-terminal kinase (JNK) and c-Jun, but not extracellular signal-regulated kinase or p38, activation in GSTP-null than in WT mice.
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67 |
19720798
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Furthermore, chemerin activates p38 mitogen-activated protein kinase, nuclear factor-kappaB, and extracellular signal-regulated kinase (ERK)-1/2.
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68 |
19950198
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The insulin effect on A(2B)-AR expression was blocked by p38 MAP kinase inhibitor (SB 203580).
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69 |
20739683
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White adipocytes from eNOS(-/-) mice displayed higher p38 MAPK phosphorylation than wild-type animals under basal conditions, and ACEA was ineffective in cells lacking eNOS.
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70 |
20739683
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Moreover, mitochondrial biogenesis was downregulated, while p38 MAPK phosphorylation was increased and AMPK phosphorylation was decreased in WAT, muscle, and liver of ACEA-treated mice on a HFD.
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71 |
20739683
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CB1 receptor stimulation decreases mitochondrial biogenesis in white adipocytes, through eNOS downregulation and p38 MAPK activation, and impairs mitochondrial function in metabolically active tissues of dietary obese mice.
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72 |
20802255
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At the molecular level, adiponectin decreased high glucose-induced accumulation of intracellular reactive oxygen species and consequently suppressed activation of p38 MAP kinase (MAPK) and expression of the senescence marker p16(INK4A).
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73 |
18719589
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BMP7 activates a full program of brown adipogenesis including induction of early regulators of brown fat fate PRDM16 (PR-domain-containing 16; ref. 4) and PGC-1alpha (peroxisome proliferator-activated receptor-gamma (PPARgamma) coactivator-1alpha; ref. 5), increased expression of the brown-fat-defining marker uncoupling protein 1 (UCP1) and adipogenic transcription factors PPARgamma and CCAAT/enhancer-binding proteins (C/EBPs), and induction of mitochondrial biogenesis via p38 mitogen-activated protein (MAP) kinase-(also known as Mapk14) and PGC-1-dependent pathways.
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74 |
20923527
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INS832/13 ?-cell and isolated rat islets were incubated at 3 and 20 mM glucose for 18 h in the absence or presence of adenosine monophosphate (AMP)-activated protein kinase (AMPK) activators and inhibitors, as well as p38 mitogen-activated protein kinase (p38 MAPK) inhibitors.
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75 |
20739620
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We further postulated that the p38 mitogen-activated protein kinase (MAPK) and 5'-AMP-activated protein kinase (AMPK) signaling pathways would control PDK4 mRNA expression in cultured adipose tissue.
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76 |
20739620
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In cultured adipose tissue, epinephrine increased p38 and AMPK signaling; however, the direct activation of AMPK by AICAR or metformin led to reductions in PDK4 mRNA levels.
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77 |
20739620
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The p38 inhibitor SB202190 reduced epinephrine-mediated increases in p38 MAPK activation without altering hormone-sensitive lipase or AMPK phosphorylation or attenuating epinephrine-induced increases in lipolysis.
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78 |
20739620
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Reductions in p38 MAPK signaling were associated with decreases in PDK4 mRNA expression.
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79 |
21072680
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It also diminished insulin-stimulated tyrosine phosphorylation of IRS-1, PI3K (p85), and serine phosphorylation of Akt without affecting the phosphorylation of IR, ERK1/2, P38, and JNK.
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80 |
21262998
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Animal models of vascular stress have previously predicted improvements in vascular function after p38 MAPK inhibition.
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81 |
21262998
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These data support the hypothesis that attenuating the inflammatory milieu by inhibiting p38 MAPK activity improves NO activity.
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82 |
21317295
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The results showed that formation of reactive oxygen species and subsequent activation of ERK and P38, but not Jun NH2-terminal kinase, are molecular events underpinning retinal microglial TNF-? release during AGA treatment.
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83 |
20813201
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The p38 MAP kinase and MAPKAP-2 pathway are involved in the post-transcriptional regulation of TNF? and are targeted by a functionally divergent group of cytokines including IL-10 and TGF?1.
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84 |
21052844
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Our results indicated that selenium supplementation can reduce HG, AGE, HI and H2O2-induced expression of COX-2 and P-selectin by inhibition of the p38 pathway.
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85 |
18344592
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The p38 mitogen-activated protein kinase (MAPK) inhibitor SB203580 significantly suppressed lysoPC-induced COX-2 mRNA and protein expression, but not a p42/44MAPK kinase (MEK-1) inhibitor, PD98059.
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86 |
21167822
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The level of moesin protein phosphorylation was also increased in cerebral microvessels, along with an increased permeability of the blood-brain barrier, while inhibition of the p38 and ROCK attenuated these responses.
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87 |
21167822
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These results demonstrate that AGEs cause the phosphorylation of moesin in murine brain microvascular endothelial cells, with p38 and ROCK being involved in this process.
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88 |
20938440
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In hSMC, PEDF induced proliferation (1.7-fold) and acutely activated proliferative and inflammatory signaling pathways (NF-?B, p38 mitogen-activated protein kinase and mammalian target of rapamycin).
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89 |
21593200
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Nuclear factor (NF)-?B activation was assessed by treating human embryonic kidney (HEK) 293 and HK-2 cells with tumor necrosis factor (TNF)-? in the presence or absence of Klotho, followed by immunoblot analysis to evaluate inhibitor of ?B (I?B)? degradation, I?B kinase (IKK) and p38 activation, RelA nuclear translocation, and phosphorylation.
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90 |
20460580
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The following were determined pre- and post-simulated ischemia-reperfusion (SI-R; 8 h of hypoxia followed by 3 h of reoxygenation): cardiomyocyte death/apoptosis, Trx expression and activity, AGE formation, Trx-apoptosis-regulating kinase-1 (Trx-ASK1) complex formation, and p38 mitogen-activated protein kinase (MAPK) phosphorylation and activity.
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91 |
20460580
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Moreover, Trx-ASK1 complex formation was reduced, and both p38 MAPK activity and phosphorylation were increased.
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92 |
20460580
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Finally, glycation inhibitor aminoguanidine administration during MG treatment of cultured cells reduced AGE formation, increased Trx activity, restored Trx-ASK1 interaction, and reduced p38 MAPK phosphorylation and activity, caspase-3 activation, and LDH release (P < 0.01).
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93 |
21163347
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Several recent studies are reviewed that support the concept that direct exposure of mammalian skeletal muscle to an oxidant stress (including hydrogen peroxide) results in stimulation of the serine kinase p38 mitogen-activated protein kinase (p38 MAPK), and that the engagement of this stress-activated p38 MAPK signaling is mechanistically associated with diminished insulin-dependent stimulation of insulin signaling elements and glucose transport activity.
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94 |
21472505
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A specific p38 inhibitor rescued MIN6 cells from cholesterol-induced apoptosis, while JNK inhibitor failed, suggesting the importance of activation of p38 MAPK signaling in response to cholesterol.
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95 |
21472505
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Taken together, these results demonstrate that the free cholesterol loading can induce apoptosis of MIN6 cells mediated by oxidative stress and the activation of p38 MAPK signaling.
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96 |
21478266
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The current study provides novel insights into the molecular mechanisms of TGF-?1-induced monocyte migration, requiring ALK5 kinase activity and signalling via PI3K and p38.
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97 |
21617845
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Neuroprotective and nephroprotective effects of PARP inhibition were not due to alleviation of diabetic hyperglycemia, or peripheral nerve p38 mitogen-activated protein kinase activation.
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98 |
21783017
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Activation of p38 in spinal microglia results in increased synthesis and release of the neurotrophin brain-derived neurotrophic factor and the proinflammatory cytokines interleukin-1?, interleukin-6, and tumor necrosis factor-?.
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99 |
20071676
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This study was conducted to evaluate the effect of a p38 MAPK inhibitor on the development of early stages of diabetic retinopathy in rats.
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100 |
20071676
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Streptozotocin-diabetic rats were assigned to two groups-treated with the p38 MAPK inhibitor PHA666859 (Pfizer, New York, NY) and untreated-and compared with age-matched nondiabetic control animals.
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101 |
20071676
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All these abnormalities were significantly inhibited by the p38 MAPK inhibitor (25 mg/kgBW/d).
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102 |
10871193
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IL-1beta signaling through p38 MAP kinase was found to be normal in INS-1res cells, suggesting that their expression of IL-1RI is sufficient to maintain cytokine action.
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103 |
14688258
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We found that treatment of COS7 cells with H(2)O(2) triggers dephosphorylation of Ser-967 through an okadaic acid-sensitive phosphatase, resulting in dissociation of the ASK1.14-3-3 complex with concomitant increase of ASK1 catalytic activity and ASK1-mediated activation of JNK and p38 pathways.
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104 |
15007040
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The Sgk1 induction was almost completely inhibited by the p38 MAPK inhibitor SB203580, indicating that NaCl activates Sgk1 through the p38 MAPK pathway.
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105 |
15007040
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Collectively, these data imply that Sgk1 operates over an eNOS-independent, p38 MAPK-dependent pathway in mediating osmotic induction of the NPR-A gene promoter.
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106 |
22069265
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We found that sub-G1/G0 population was increased as compared with untreated cells and expression of cleaved caspase-3, cleaved poly(ADP-ribose) polymerase, phosphorylated p38 mitogen-activated protein kinase and phosphorylated nuclear factor-?B was increased in interleukin-6-treated INS-1 cells.
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