Projects per year
Abstract
The interleukin-1 family members, IL-1β and IL-18, are processed into their biologically active forms by multi-protein complexes, known as inflammasomes. Although the inflammasome pathways that mediate IL-1β processing in myeloid cells have been defined, those involved in IL-18 processing, particularly in non-myeloid cells, are still not well understood. Here we report that the host defence molecule NOD1 regulates IL-18 processing in mouse epithelial cells in response to the mucosal pathogen, Helicobacter pylori. Specifically, NOD1 in epithelial cells mediates IL-18 processing and maturation via interactions with caspase-1, instead of the canonical inflammasome pathway involving RIPK2, NF-κB, NLRP3 and ASC. NOD1 activation and IL-18 then help maintain epithelial homoeostasis to mediate protection against pre-neoplastic changes induced by gastric H. pylori infection in vivo. Our findings thus demonstrate a function for NOD1 in epithelial cell production of bioactive IL-18 and protection against H. pylori-induced pathology.
| Original language | English |
|---|---|
| Article number | 3804 |
| Number of pages | 18 |
| Journal | Nature Communications |
| Volume | 14 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Dec 2023 |
Projects
- 3 Finished
-
NLRC5, a new regulator of Helicobacter-induced inflammation
Ferrero, R. (Primary Chief Investigator (PCI))
NHMRC - National Health and Medical Research Council (Australia)
1/01/16 → 31/12/19
Project: Research
-
Helicobacter pylori acquisition of host cholesterol: its role in inflammation
Ferrero, R. (Primary Chief Investigator (PCI))
NHMRC - National Health and Medical Research Council (Australia)
1/01/12 → 31/12/14
Project: Research
-
NHMRC Research Fellowship
Ferrero, R. (Primary Chief Investigator (PCI))
NHMRC - National Health and Medical Research Council (Australia)
1/01/10 → 31/12/19
Project: Research
Equipment
-
MHTP Medical Genomics Facility
Wilson, T. (Manager)
Hudson Institute - Department of Molecular and Translational ScienceFacility/equipment: Facility
-
Monash Micro Imaging (MMI)
Firth, S. (Manager), Fulcher, A. (Operator), Chernyavskiy, O. (Operator), Rzeszutek, M. (Other), Potter, D. (Manager), Hilsenstein, V. (Operator), Nunez-Iglesias, J. (Other), Cody, S. (Manager), Carmichael, I. (Operator), Kouskousis, B. (Other), Creed, S. (Manager) & Ballerin, G. (Operator)
Faculty of Medicine Nursing and Health Sciences Research PlatformsFacility/equipment: Facility
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