Chronicles of a death foretold: dual sequential cell death checkpoints in TNF signaling.

Chronicles of a death foretold: dual sequential cell death checkpoints in TNF signaling.
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DOI:
10.4161/cc.9.6.10982
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发表时间:
2010-03-15
期刊:
Cell cycle (Georgetown, Tex.)
影响因子:
--
通讯作者:
Ting AT
Ting AT
中科院分区:
其他
文献类型:
--
作者:
O'Donnell MA;Ting AT

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The kinase RIP1 wears a coat of many colors during TNF receptor signaling and can regulate both activation of pro-survival NFκB and programmed cell death pathways. In this review, we outline how coating RIP1 with K63-linked ubiquitin chains forms a protective layer that prevents RIP1 from binding apoptotic regulators and serves as an early guard against cell death. Further on, binding of NFκB signaling components to the ubiquitin coat of RIP1 activates long-term pro-survival signaling and forms a more impenetrable suit of armor against cell death. If RIP1 is not decorated with ubiquitin chains it becomes an unstoppable harbinger of bad news: programmed cell death.
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