Resistance to Apoptosis Conferred by Cdk Inhibitors During Myocyte Differentiation
摘要：
Proliferating murine C2C12 myoblasts can undergo either terminal differentiation or programmed cell death under conditions of mitogen deprivation. Unlike myoblasts, differentiated myotubes were resistant to apoptosis. During myogenesis the appearance of the apoptosis-resistant phenotype was correlated with the induction of the cyclin-dependent kinase (Cdk) inhibitor p21$^{CIP1}$ but not with the appearance of myogenin, a marker expressed earlier in differentiation. Forced expression of the Cdk inhibitors p21$^{CIP1}$ or p16$^{INK4A}$ blocked apoptosis during myocyte differentiation. These data indicate that induction of Cdk inhibitors may serve to protect differentiating myocytes from programmed cell death as well as play a role in establishing the postmitotic state.
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DOI：
10.1126/science.273.5273.359
被引量：
年份：
1996
Wiley
掌桥科研
Semantic Scholar
万方医学
dx.doi.org
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