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PMID |
Sentence |
1 |
8922537
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We examined insulin-mediated PKC beta I, beta II, and epsilon translocation from cytosol to cytoskeleton, and expression of PKC alpha, beta I, beta II, gamma, and epsilon isoforms using the reverse transcription polymerase chain reaction (RT-PCR) method during treatment with insulin for 240 min in rat adipocytes.
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2 |
8922537
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However, PKC beta I mRNA was decreased for up to 60 min and then maintained at under the basal level during stimulation with insulin and TPA.
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3 |
14511127
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Consistent with the changes of PKC activities, diabetic Tg showed decreased expression of PKC alpha in endoneurium, whereas there was an increased expression of PKC beta II in epineurium in both diabetic Tg and diabetic Lm.
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4 |
14514646
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Adenoviral-mediated PKC-beta(2) overexpression enhanced ROS generation by modulating the membranous translocation of p47phox and p67phox in cultured mesangial cells.
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5 |
14514646
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We now demonstrate that oxidative stress is primarily enhanced in the diabetic glomeruli due to a PKC-beta-dependent activation of NADPH oxidase resulting in ROS generation.
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6 |
15158370
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Furthermore, since the protein kinase C (PKC) pathway appears to be a key factor for the enhanced production of TGFbeta(1), we also analyzed the effect of the selective PKCbeta inhibitor LY379196 on TGFbeta(1) response to CSC.
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7 |
15158370
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These data suggest that smoking could increase TGFbeta(1) production, probably due to oxidative stress and PKCbeta activation.
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8 |
16505232
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Thus, activation of PKCbeta in endothelial cells and vascular tissue inhibits Akt activation by insulin and VEGF, inhibits Akt-dependent eNOS regulation by insulin, and causes endothelial dysfunction in obesity-associated insulin resistance.
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9 |
17065350
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In wild-type mice, diabetes increased the translocation of PKC-alpha and -beta1 to the membrane, whereas only PKC-alpha was elevated in PKC-beta(-/-) mice.
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10 |
17065350
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Diabetes increased NADPH oxidase activity and the expressions of p47(phox), Nox2, and Nox4 mRNA levels in the renal cortex and were unchanged in diabetic PKC-beta(-/-) mice.
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11 |
17065350
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Increased expression of endothelin-1 (ET-1), vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-beta, connective tissue growth factor (CTGF), and collagens IV and VI found in diabetic wild-type mice was attenuated in diabetic PKC-beta(-/-) mice.
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12 |
17065350
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Lack of PKC-beta can protect against diabetes-induced renal dysfunction, fibrosis, and increased expressions of Nox2 and -4, ET-1, VEGF, TGF-beta, CTGF, and oxidant production.
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13 |
17084284
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This review details the evidence that the protein kinase C (PKC) beta/early growth response-1 axis plays a central role in the response to both acute and chronic vascular stresses in animal models and also indicates the clinical implications of a specific inhibitor of PKCbeta, ruboxistaurin (LY333531).
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14 |
18241357
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Akt/PKB is associated with a downstream insulin signaling, and PKCbeta attenuates insulin-stimulated Akt phosphorylation.
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15 |
18974277
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Treatment with Rottlerin, a PKC-delta isoform inhibitor, reduced significantly the glucose-induced ET-1 secretion, and ECE-1 protein expression, but (S)-13-[(dimethylamino)methyl]-10,11,14,15-tetrahydro-4,9:16,21-dimetheno 1H,1(3)H-dibenzo[e,k]pyrrolo[3,4-h] (1, 4, 3) oxadiaza-cyclohexadecene-1,3(2H)-dione or Gö6976, specific PKC-beta and -alpha inhibitors, respectively, did not.
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16 |
19153662
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PKCbeta(2) co-immunoprecipitated with phosphorylated aconitase from mitochondria isolated from diabetic hearts.
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17 |
19153662
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Similar results were obtained on phosphorylation of mitochondrial aconitase by PKCbeta(2) in vitro.
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18 |
19587355
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Further, the in vivo effects of PKCbeta inhibition on iNOS-mediated cardiovascular abnormalities were tested in STZ-induced diabetic rats.
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19 |
19587355
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Suppression of PKCbeta(2) expression by small interference RNA decreased high-glucose-induced nuclear factor kappaB and extracellular signal-related kinase activation and iNOS expression in VSMC.
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20 |
19587355
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Collectively, these results suggest that inhibition of PKCbeta(2) may be a useful approach for correcting abnormal hemodynamics in diabetes by preventing iNOS mediated nitrosative stress.
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21 |
20179320
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Here we show that protein kinase C beta (PKCbeta) is a key mediator of insulin-mediated activation of hepatic SREBP-1c and its target lipogenic genes.
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22 |
20179320
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The effect of PKCbeta inhibition was cancelled in insulin depletion by streptozotocin (STZ) treatment of mice.
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23 |
20179320
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Promoter analysis indicated that PKCbeta activates SREBP-1c promoter through replacement of Sp3 by Sp1 for binding to the GC box in the sterol regulatory element (SRE) complex, a key cis-element of SREBP-1c promoter.
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24 |
20569275
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As protein kinase C (PKC) activation is consistently present in skeletal muscle of obese and insulin resistant subjects, we generated a transgenic mouse model that overexpresses constitutively active PKC-beta(2) in skeletal muscle to test whether activation of PKC is sufficient to cause an aversive whole-body phenotype.
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25 |
20599775
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The PKCbeta/HuR activation was accompanied by enhanced VEGF protein expression that was, again, blunted by the PKCbeta inhibitor.
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26 |
20875828
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Blockade of PKC-beta strikingly decreased HUVEC TGF-beta1 and ICAM-1 expression in both protein and mRNA levels, RAGE protein level was also down-regulated.
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27 |
11553507
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We studied the expression of PKC-beta(I) in rat glomerular mesangial cells (MCs) cultured in normal or high glucose and compared it with the temporal and spatial expression of dimeric transcription factor (NF-kappaB) p50 and p65.
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28 |
11553507
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However, phorbol 12-myristate 13-acetate (PMA) stimulation of cells grown in the presence of high glucose resulted in membrane translocation of PKC-beta(I) that was associated with nuclear translocation of NF-kappaB p65, but not NF-kappaB p50.
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29 |
11997313
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Enhanced collagen IV expression by mesangial cells in response to vasoactive peptide hormone stimulation, e.g., endothelin-1, requires PKC-beta, -delta, -epsilon and -zeta.
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30 |
17327498
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We show that inhibition of PKC-beta with LY379196 and PKC-beta siRNA reduced basal PKC-zeta and GSK3beta phosphorylation in human mesangial cells exposed to high glucose.
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31 |
17522264
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Ruboxistaurin is an inhibitor of the beta isoform of protein kinase C (PKC-beta) that reduces the actions of vascular endothelial growth factor (VEGF) and attenuates the progression of diabetic retinopathy.
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32 |
17522264
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Moreover, to mimic the clinical context, the effects of PKC-beta inhibition were examined both with and without concomitant angiotensin-converting enzyme (ACE) inhibitor therapy.
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