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PMID |
Sentence |
1 |
17401436
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Expression of mitogen-activated protein phosphatase-1 (MKP-1), one of the phosphatases involved in inactivation of mitogen-activated protein kinase signaling, was increased in all diabetic groups, irrespective of metabolic control.
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2 |
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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3 |
16814733
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We reconciled these results by demonstrating that in mkp-1(-/-) mice, JNK activity was increased in the nucleus, but not the cytosol.
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4 |
21562305
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The transient induction of MAP kinase phosphatase-1 (MKP-1), which mediates ERK dephosphorylation at the onset of myogenesis, was lost in ERR?-/- myocytes and in XCT790-treated C2C12.
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5 |
12176727
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Insulin inhibition of MAPK was accompanied by a rapid induction of MAPK phosphatase (MKP-1), which inactivates MAPKs by dephosphorylation.
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6 |
12176727
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Pretreatment with inhibitors of the nitric oxide (NO)/cGMP pathway, blocked insulin-induced MKP-1 expression and restored PDGF-stimulated MAPK activation and migration.
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7 |
12176727
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In contrast, adenoviral infection of VSMCs with MKP-1 or cGMP-dependent protein kinase Ialpha (cGK Ialpha), the downstream effector of cGMP signaling, blocked the activation of MAPK and prevented PDGF-directed VSMC migration.
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8 |
12176727
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Expression of antisense MKP-1 RNA prevented insulin's inhibitory effect and restored PDGF-directed VSMC migration and MAPK phosphorylation.
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9 |
12176727
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We conclude that insulin inhibition of VSMC migration may be mediated in part by NO/cGMP/cGK Ialpha induction of MKP-1 and consequent inactivation of MAPKs.
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