Interferon Regulatory Factor 1 (IRF-1) induces p21(WAF1/CIP1) dependent cell cycle arrest and p21(WAF1/CIP1) independent modulation of survivin in cancer cells.

Interferon Regulatory Factor 1 (IRF-1) induces p21(WAF1/CIP1) dependent cell cycle arrest and p21(WAF1/CIP1) independent modulation of survivin in cancer cells.
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DOI:
10.1016/j.canlet.2011.12.027
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发表时间:
2012-06-01
期刊:
影响因子:
9.7
通讯作者:
Yim, John H.
Yim, John H.
中科院分区:
医学1区
文献类型:
--
作者:
Armstrong, Michaele J.;Stang, Michael T.;Liu, Ye;Gao, Jinbo;Ren, Baoguo;Zuckerbraun, Brian S.;Mahidhara, Raja S.;Xing, Quanhua;Pizzoferrato, Eva;Yim, John H.

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我们已经表明,干扰素调节因子(IRF-1)的异位表达导致人类癌细胞死亡,伴随着凋亡蛋白抑制剂(IAP)生存素的下调和细胞周期蛋白依赖性激酶抑制剂p21 WAF 1/CIP 1的诱导。在这份报告中,我们研究了p21在抑制生存素中的直接作用。我们发现IRF-1下调cyclin B1、cdc-2、cyclin E、E2 F1、Cdk 2、Cdk 4,并导致p21介导的G1期细胞阻滞。有趣的是,虽然p21直接介导G1细胞周期停滞,但IRF-1或其他IRF-1信号通路可能直接调节人类癌细胞中的存活素。
We have shown that the ectopic expression of Interferon Regulatory Factor (IRF-1) results in human cancer cell death accompanied by the down-regulation of the Inhibitor of Apoptosis Protein (IAP) survivin and the induction of the cyclin-dependent kinase inhibitor p21WAF1/CIP1. In this report, we investigated the direct role of p21 in the suppression of survivin. We show that IRF-1 down-regulates cyclin B1, cdc-2, cyclin E, E2F1, Cdk2, Cdk4, and results in p21-mediated G1 cell cycle arrest. Interestingly, while p21 directly mediates G1 cell cycle arrest, IRF-1 or other IRF-1 signaling pathways may directly regulate survivin in human cancer cells.
Survivin 是预后不良的乳腺癌患者短期生存的独立预测因子。
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