期刊
SEMINARS IN CELL & DEVELOPMENTAL BIOLOGY
卷 35, 期 -, 页码 33-39出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.semcdb.2014.07.003
关键词
Necroptosis; Apoptosis; Cell death; Immunity; Immune system; T cells
资金
- National Multiple Sclerosis Society [CA 1058-A-8]
- California Institute for Regenerative Medicine (CIRM) [RM1-01717, TR3-05603]
- National Institutes of Health [GM099040]
The vertebrate immune system is highly dependent on cell death for efficient responsiveness to microbial pathogens and oncogenically transformed cells. Cell death pathways are vital to the function of many immune cell types during innate, humoral and cellular immune responses. In addition, cell death regulation is imperative for proper adaptive immune self-tolerance and homeostasis. While apoptosis has been found to be involved in several of these roles in immunity, recent data demonstrate that alternative cell death pathways are required. Here, we describe the involvement of a programmed form of cellular necrosis called necroptosis in immunity. We consider the signaling pathways that promote necroptosis downstream of death receptors, type I transmembrane proteins of the tumor necrosis factor (TNF) receptor family. The involvement of necroptotic signaling through a RIPoptosome assembled in response to innate immune stimuli or genotoxic stress is described. We also characterize the induction of necroptosis following antigenic stimulation in T cells lacking caspase-8 or FADD function. While necroptotic signaling remains poorly understood, it is clear that this pathway is an essential component to effective vertebrate immunity. (C) 2014 Elsevier Ltd. All rights reserved.
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