期刊
AUTOPHAGY
卷 7, 期 5, 页码 544-546出版社
LANDES BIOSCIENCE
DOI: 10.4161/auto.7.5.15056
关键词
Rb; muscle; autophagy; apoptosis; p53; cancer
类别
Autophagy, an intracellular degradation pathway involved in cell survival or demise, is tightly controlled by complex regulatory mechanisms. A link between the Rb tumor suppressor and autophagy is now emerging. pRb plays a critical role in cell cycle progression and survival as well as the differentiation of certain cell types. Recently, we have reported that during skeletal myogenesis, Rb-deficient myoblasts fuse to form short myotubes that quickly degenerate. Myotube degeneration was associated with increased autophagic flux and inhibition of autophagy rescued the defect leading to long, twitching myotubes. We propose that Rb-loss sensitizes cells to autophagy via direct and indirect mechanisms and we discuss how these might affect cancer progression and response to chemotherapy.
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