Cited by 602Cell death mechanisms and regulationInflammatory Bowel DiseaseNF-κB Signaling Pathways

FADD prevents RIP3-mediated epithelial cell necrosis and chronic intestinal inflammation

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Welz, Patrick-Simon, Wullaert, Andy, Vlantis, Katerina, Kondylis, Vangelis, Fernández-Majada, Vanesa, Ermolaeva, Maria, Kirsch, Petra, Sterner-Kock, Anja +2 more·2011·Nature

Abstract

Intestinal immune homeostasis depends on a tightly regulated cross talk between commensal bacteria, mucosal immune cells and intestinal epithelial cells (IECs). Epithelial barrier disruption is considered to be a potential cause of inflammatory bowel disease; however, the mechanisms regulating intestinal epithelial integrity are poorly understood. Here we show that mice with IEC-specific knockout of FADD (FADD(IEC-KO)), an adaptor protein required for death-receptor-induced apoptosis, spontaneously developed epithelial cell necrosis, loss of Paneth cells, enteritis and severe erosive colitis. Genetic deficiency in RIP3, a critical regulator of programmed necrosis, prevented the development of spontaneous pathology in both the small intestine and colon of FADD(IEC-KO) mice, demonstrating that intestinal inflammation is triggered by RIP3-dependent death of FADD-deficient IECs. Epithelial-specific inhibition of CYLD, a deubiquitinase that regulates cellular necrosis, prevented colitis development in FADD(IEC-KO) but not in NEMO(IEC-KO) mice, showing that different mechanisms mediated death of colonic epithelial cells in these two models. In FADD(IEC-KO) mice, TNF deficiency ameliorated colon inflammation, whereas MYD88 deficiency and also elimination of the microbiota prevented colon inflammation, indicating that bacteria-mediated Toll-like-receptor signalling drives colitis by inducing the expression of TNF and other cytokines. However, neither CYLD, TNF or MYD88 deficiency nor elimination of the microbiota could prevent Paneth cell loss and enteritis in FADD(IEC-KO) mice, showing that different mechanisms drive RIP3-dependent necrosis of FADD-deficient IECs in the small and large bowel. Therefore, by inhibiting RIP3-mediated IEC necrosis, FADD preserves epithelial barrier integrity and antibacterial defence, maintains homeostasis and prevents chronic intestinal inflammation. Collectively, these results show that mechanisms preventing RIP3-mediated epithelial cell death are critical for the maintenance of intestinal homeostasis and indicate that programmed necrosis of IECs might be implicated in the pathogenesis of inflammatory bowel disease, in which Paneth cell and barrier defects are thought to contribute to intestinal inflammation.

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Crossref · 10.1038/nature10273

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Authors
Welz, P.-S., Wullaert, A., Vlantis, K., Kondylis, V., Fernández-Majada, V., Ermolaeva, M., Kirsch, P., Sterner-Kock, A., van Loo, G., & Pasparakis, M.
Affiliations
  • University of Cologne (DE)
  • Universität Ulm (DE)
Corresponding author
Pasparakis, Manolis
Venue
Nature
Published
2011-07-31
Volume
477
Issue
7364
Pages
330-334
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1988848002
Cited by
594
References
36
Citations by year
2026: 7 · 2025: 28 · 2024: 34 · 2023: 28 · 2022: 37 · 2021: 45 · 2020: 37 · 2019: 31 · 2018: 28 · 2017: 42 · 2016: 57 · 2015: 44 · 2014: 81 · 2013: 51 · 2012: 33
FWCI
22.96
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Kölner Universitäts PublikationsServer (Universität zu Köln) (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, other-oa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
FADD, RIPK3, necroptosis, epithelial cell necrosis, intestinal inflammation, Paneth cells, caspase-8, TNF-α, CYLD, NEMO, Toll-like receptor signaling, microbiota, Crohn's disease, intestinal epithelial cells, immune homeostasis, colitis, MyD88, commensal bacteria
MeSH terms
Deubiquitinating Enzyme CYLD, Animals, Chronic Disease, Colitis, Colon, Cysteine Endopeptidases, Enteritis, Epithelial Cells, Necrosis, Inflammatory Bowel Diseases, Signal Transduction, Apoptosis, Paneth Cells, Intracellular Signaling Peptides and Proteins, Tumor Necrosis Factors, Mice, Fas-Associated Death Domain Protein, Receptor-Interacting Protein Serine-Threonine Kinases, Myeloid Differentiation Factor 88, Metagenome

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