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Vascular smooth muscle cell (VSMC) apoptosis plays an important role in vascular remodeling and atherosclerotic plaque instability. Oxidative stress in diseased vessels promotes VSMC apoptosis in part by activating the c-Jun N-terminal kinase (JNK) pathway, which has been identified as a molecular target of miR-92a in macrophages. Here, we examined the expression and biological activity of miR-92a...
This study was undertaken to determine the in vitro effect of lentivirus-mediated siPin1 on cell cycle and apoptosis of vascular smooth muscle cells (VSMCs). Further we sought to provide insight into the mechanisms behind these processes. Human umbilical artery smooth muscle cells (HUASMCs) were transfected with lentiviral siPin1. Real-time RT–PCR and Western blotting were used to examine Pin1 mRNA...
Bcl-2 family proteins are implicated as essential regulators in tumor necrosis factor-α (TNFα)-induced apoptosis. BimL, a BH3-only member of Bcl-2 family, can directly or indirectly activate the proapoptotic Bax and the subsequent mitochondrial apoptotic pathway. However, the molecular mechanism of BimL activating Bax activation during TNFα-induced apoptosis is not fully understood. In this study,...
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