Cited by 482Cell death mechanisms and regulationCancer-related Molecular PathwaysNF-κB Signaling Pathways

XIAP discriminates between type I and type II FAS-induced apoptosis

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Jost, Philipp J., Grabow, Stephanie, Gray, Daniel, McKenzie, Mark D., Nachbur, Ueli, Huang, David C. S., Bouillet, Philippe, Thomas, Helen E. +4 more·2009·Nature

Abstract

FAS (also called APO-1 and CD95) and its physiological ligand, FASL, regulate apoptosis of unwanted or dangerous cells, functioning as a guardian against autoimmunity and cancer development. Distinct cell types differ in the mechanisms by which the 'death receptor' FAS triggers their apoptosis. In type I cells, such as lymphocytes, activation of 'effector caspases' by FAS-induced activation of caspase-8 suffices for cell killing, whereas in type II cells, including hepatocytes and pancreatic beta-cells, caspase cascade amplification through caspase-8-mediated activation of the pro-apoptotic BCL-2 family member BID (BH3 interacting domain death agonist) is essential. Here we show that loss of XIAP (X-chromosome linked inhibitor of apoptosis protein) function by gene targeting or treatment with a second mitochondria-derived activator of caspases (SMAC, also called DIABLO; direct IAP-binding protein with low pI) mimetic drug in mice rendered hepatocytes and beta-cells independent of BID for FAS-induced apoptosis. These results show that XIAP is the critical discriminator between type I and type II apoptosis signalling and suggest that IAP inhibitors should be used with caution in cancer patients with underlying liver conditions.

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Authors
Jost, P. J., Grabow, S., Gray, D., McKenzie, M. D., Nachbur, U., Huang, D. C. S., Bouillet, P., Thomas, H. E., Borner, C., Silke, J., Strasser, A., & Kaufmann, T.
Affiliations
  • The University of Melbourne (AU)
  • Walter and Eliza Hall Institute of Medical Research (AU)
  • La Trobe University (AU)
  • St Vincents Institute of Medical Research (AU)
  • University of Freiburg (DE)
  • University of Bern (CH)
Corresponding author
  • Strasser, Andreas
  • Kaufmann, Thomas
Venue
Nature
Published
2009-07-22
Volume
460
Issue
7258
Pages
1035-1039
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1998198750
Cited by
482
References
36
Citations by year
2026: 10 · 2025: 17 · 2024: 13 · 2023: 24 · 2022: 28 · 2021: 23 · 2020: 30 · 2019: 22 · 2018: 27 · 2017: 39 · 2016: 32 · 2015: 22 · 2014: 39 · 2013: 44 · 2012: 37
FWCI
15.02
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • BORIS (University Library Bern) (submittedVersion)
Funders
National Cancer Institute (#CA 80188, R01CA043540, CA 43540, R01CA080188)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
XIAP, Fas, Fas ligand, apoptosis, caspase-8, caspase-9, Bid, Smac/DIABLO, IAP inhibitors, hepatocytes, pancreatic beta cells, lymphocytes, cancer therapy, liver disease, autoimmunity, carcinogenesis, cell death signaling, gene targeting, IAP antagonists
MeSH terms
Animals, Enzyme Activation, Female, Hepatitis, Male, Mice, Inbred C57BL, Thymus Gland, Signal Transduction, Apoptosis, fas Receptor, Hepatocytes, Biomimetic Materials, BH3 Interacting Domain Death Agonist Protein, Mice, X-Linked Inhibitor of Apoptosis Protein, Fas Ligand Protein, Caspase Inhibitors

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