DUOX2 variants associate with preclinical disturbances in microbiota-immune homeostasis and increased inflammatory bowel disease risk.
Gastroenterology
Genetic variation
Inflammatory bowel disease
Innate immunity
Journal
The Journal of clinical investigation
ISSN: 1558-8238
Titre abrégé: J Clin Invest
Pays: United States
ID NLM: 7802877
Informations de publication
Date de publication:
03 05 2021
03 05 2021
Historique:
received:
26
06
2020
accepted:
25
02
2021
pubmed:
3
3
2021
medline:
6
10
2021
entrez:
2
3
2021
Statut:
ppublish
Résumé
A primordial gut-epithelial innate defense response is the release of hydrogen peroxide by dual NADPH oxidase (DUOX). In inflammatory bowel disease (IBD), a condition characterized by an imbalanced gut microbiota-immune homeostasis, DUOX2 isoenzyme is the highest induced gene. Performing multiomic analyses using 2872 human participants of a wellness program, we detected a substantial burden of rare protein-altering DUOX2 gene variants of unknown physiologic significance. We identified a significant association between these rare loss-of-function variants and increased plasma levels of interleukin-17C, which is induced also in mucosal biopsies of patients with IBD. DUOX2-deficient mice replicated increased IL-17C induction in the intestine, with outlier high Il17c expression linked to the mucosal expansion of specific Proteobacteria pathobionts. Integrated microbiota/host gene expression analyses in patients with IBD corroborated IL-17C as a marker for epithelial activation by gram-negative bacteria. Finally, the impact of DUOX2 variants on IL-17C induction provided a rationale for variant stratification in case control studies that substantiated DUOX2 as an IBD risk gene. Thus, our study identifies an association of deleterious DUOX2 variants with a preclinical hallmark of disturbed microbiota-immune homeostasis that appears to precede the manifestation of IBD.
Identifiants
pubmed: 33651715
pii: 141676
doi: 10.1172/JCI141676
pmc: PMC8087203
doi:
pii:
Substances chimiques
IL17C protein, human
0
Il17c protein, mouse
0
Interleukin-17
0
Dual Oxidases
EC 1.11.1.-
DUOX2 protein, human
EC 1.6.3.1
Duox2 protein, mouse
EC 1.6.3.1
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : BLRD VA
ID : I01 BX001245
Pays : United States
Organisme : NCI NIH HHS
ID : U24 CA210967
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK124779
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK034933
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK117565
Pays : United States
Organisme : NIEHS NIH HHS
ID : P30 ES017885
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR002240
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK054221
Pays : United States
Commentaires et corrections
Type : CommentIn
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