Cited by 989Cell death mechanisms and regulationNF-κB Signaling PathwaysDeath, Funerary Practices, and Mourning

Identification of a Molecular Signaling Network that Regulates a Cellular Necrotic Cell Death Pathway

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Hitomi, Junichi, Christofferson, Dana E., Ng, Aylwin, Yao, Jianhua, Degterev, Alexei, Xavier, Ramnik J., Yuan, Junying·2008·Cell

Abstract

Stimulation of death receptors by agonists such as FasL and TNFalpha activates apoptotic cell death in apoptotic-competent conditions or a type of necrotic cell death dependent on RIP1 kinase, termed necroptosis, in apoptotic-deficient conditions. In a genome-wide siRNA screen for regulators of necroptosis, we identify a set of 432 genes that regulate necroptosis, a subset of 32 genes that act downstream and/or as regulators of RIP1 kinase, 32 genes required for death-receptor-mediated apoptosis, and 7 genes involved in both necroptosis and apoptosis. We show that the expression of subsets of the 432 genes is enriched in the immune and nervous systems, and cellular sensitivity to necroptosis is regulated by an extensive signaling network mediating innate immunity. Interestingly, Bmf, a BH3-only Bcl-2 family member, is required for death-receptor-induced necroptosis. Our study defines a cellular signaling network that regulates necroptosis and the molecular bifurcation that controls apoptosis and necroptosis.

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Crossref · 10.1016/j.cell.2008.10.044

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  • In presence of SMAC mimetics, RIPK1 is deubiquitinated by CYLD, favoring release from complex I and association with FADD and CASP8 in cytosol to form complex II, which drives extrinsic apoptosis.

    “Conversely, in the presence of so-called “SMAC mimetics” (which de facto operate as IAP inhibitors) [337], RIPK1 is deubiquitinated by CYLD lysine 63 deubiquitinase (CYLD), favoring its release from complex I and its association with FADD and CASP8 in the cytosol to form complex II, which drives extrinsic apoptosis [338].”
  • Necroptosis relies on deubiquitinating activity of CYLD, which is also proteolytic target of CASP8.

    “Accordingly, necroptosis relies on the deubiquitinating activity of CYLD [338], which is also a proteolytic target of CASP8 [494–496].”

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Research works printed but not linked: 1

  1. Fiers W Beyaert R Boone E Cornelis S Declercq W Decoster E Denecker G Depuydt B De Valck D De Wilde G 1995 TNF-induced intracellular signaling leading to gene induction or to cytotoxicity by necrosis or by apoptosis J Inflamm 47 67 75 8913931

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Authors
Hitomi, J., Christofferson, D. E., Ng, A., Yao, J., Degterev, A., Xavier, R. J., & Yuan, J.
Affiliations
Harvard University (US)
Corresponding author
Yuan, Junying
Venue
Cell
Publisher
Elsevier BV
Published
2008-12
Volume
135
Issue
7
Pages
1311-1323
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2161830466
Cited by
989
References
46
Citations by year
2026: 12 · 2025: 26 · 2024: 29 · 2023: 43 · 2022: 54 · 2021: 43 · 2020: 42 · 2019: 55 · 2018: 64 · 2017: 51 · 2016: 68 · 2015: 54 · 2014: 83 · 2013: 86 · 2012: 79
FWCI
27.26
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Uehara Memorial Foundation
  • Pharmaceutical Society of Japan
  • Mochida Memorial Foundation for Medical and Pharmaceutical Research
  • National Institutes of Health (DP1OD000580)
  • National Institute on Aging (R37AG012859, R01AG012859)
  • National Institute of Allergy and Infectious Diseases (AI 062773, R01AI062773)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 43351, P30DK043351, P30DK040561)
  • National Institute of Neurological Disorders and Stroke (U01NS050560)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Social Sciences › Anthropology › Death, Funerary Practices, and Mourning
Keywords
necroptosis, RIP1 kinase, apoptosis, death receptor signaling, Fas ligand, TNF-α, BMF, BH3-only proteins, Bcl-2 family proteins, innate immunity, signaling networks, siRNA screen
MeSH terms
Animals, Cell Line, Humans, Necrosis, Oncogenes, Transcription, Genetic, Protein Biosynthesis, Signal Transduction, Genome, Apoptosis, Gene Expression Profiling, Protein Interaction Mapping, Adaptor Proteins, Signal Transducing, Mice

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