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- W2140546604 endingPage "1054" @default.
- W2140546604 startingPage "1037" @default.
- W2140546604 abstract "A role for cellular inhibitors of apoptosis (IAPs [cIAPs]) in preventing CD95 death has been suspected but not previously explained mechanistically. In this study, we find that the loss of cIAPs leads to a dramatic sensitization to CD95 ligand (CD95L) killing. Surprisingly, this form of cell death can only be blocked by a combination of RIP1 (receptor-interacting protein 1) kinase and caspase inhibitors. Consistently, we detect a large increase in RIP1 levels in the CD95 death-inducing signaling complex (DISC) and in a secondary cytoplasmic complex (complex II) in the presence of IAP antagonists and loss of RIP1-protected cells from CD95L/IAP antagonist-induced death. Cells resistant to CD95L/IAP antagonist treatment could be sensitized by short hairpin RNA-mediated knockdown of cellular FLICE-inhibitory protein (cFLIP). However, only cFLIP(L) and not cFLIP(S) interfered with RIP1 recruitment to the DISC and complex II and protected cells from death. These results demonstrate a fundamental role for RIP1 in CD95 signaling and provide support for a physiological role of caspase-independent death receptor-mediated cell death." @default.
- W2140546604 created "2016-06-24" @default.
- W2140546604 creator A5009074177 @default.
- W2140546604 creator A5019861375 @default.
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- W2140546604 creator A5065391684 @default.
- W2140546604 creator A5079297250 @default.
- W2140546604 creator A5087888938 @default.
- W2140546604 date "2009-12-28" @default.
- W2140546604 modified "2023-10-10" @default.
- W2140546604 title "Cellular IAPs inhibit a cryptic CD95-induced cell death by limiting RIP1 kinase recruitment" @default.
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- W2140546604 doi "https://doi.org/10.1083/jcb.200904158" @default.