p53、PUMA、MCL-1对于凋亡途径的调控

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p53是一个众所周知的肿瘤抑制基因,目前的研究表明,其在控制细胞周期动力学、细胞凋亡和肿瘤发生中起着重要的作用.p53的诱导凋亡作用对抑制肿瘤发生至关重要,其能激活多种凋亡相关基因的表达,但其决定性作用的机制尚不明确.p53上调凋亡调控因子(PUMA)与髓细胞白血病基因1(MCL-1)作为p53的靶分子,在决定细胞是否凋亡的过程中起重要作用.该文对细胞凋亡过程中p53基因的激活及其对下游PUMA、MCL-1作用的研究进行综述.
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