» Articles » PMID: 26411289

Th17 Cell Induction by Adhesion of Microbes to Intestinal Epithelial Cells

Abstract

Intestinal Th17 cells are induced and accumulate in response to colonization with a subgroup of intestinal microbes such as segmented filamentous bacteria (SFB) and certain extracellular pathogens. Here, we show that adhesion of microbes to intestinal epithelial cells (ECs) is a critical cue for Th17 induction. Upon monocolonization of germ-free mice or rats with SFB indigenous to mice (M-SFB) or rats (R-SFB), M-SFB and R-SFB showed host-specific adhesion to small intestinal ECs, accompanied by host-specific induction of Th17 cells. Citrobacter rodentium and Escherichia coli O157 triggered similar Th17 responses, whereas adhesion-defective mutants of these microbes failed to do so. Moreover, a mixture of 20 bacterial strains, which were selected and isolated from fecal samples of a patient with ulcerative colitis on the basis of their ability to cause a robust induction of Th17 cells in the mouse colon, also exhibited EC-adhesive characteristics.

Citing Articles

Bimekizumab in the Treatment of Axial Spondyloarthritis and Psoriatic Arthritis: A New Kid on the Block.

Sarrand J, Baglione L, Bouvy C, Soyfoo M Int J Mol Sci. 2025; 26(5).

PMID: 40076933 PMC: 11899827. DOI: 10.3390/ijms26052315.


Microbiota in inflammatory bowel disease: mechanisms of disease and therapeutic opportunities.

Iliev I, Ananthakrishnan A, Guo C Nat Rev Microbiol. 2025; .

PMID: 40065181 DOI: 10.1038/s41579-025-01163-0.


Rewilding catalyzes maturation of the humoral immune system.

Chen Y, Zaldana K, Yeung F, Vujkovic-Cvijin I, Downie A, Lin J Sci Adv. 2025; 11(10):eads2364.

PMID: 40053586 PMC: 11887799. DOI: 10.1126/sciadv.ads2364.


Unraveling the microbial mysteries: gut microbiota's role in ulcerative colitis.

Ren K, Yong C, Jin Y, Rong S, Xue K, Cao B Front Nutr. 2025; 12:1519974.

PMID: 39996003 PMC: 11847676. DOI: 10.3389/fnut.2025.1519974.


Partially hydrolyzed guar gum attenuates symptoms and modulates the gut microbiota in a model of SARS-CoV-2 infection.

Yang J, Song I, Saito M, Hartanto T, Ichinohe T, Fukuda S Gut Microbiome (Camb). 2025; 6:e1.

PMID: 39944118 PMC: 11810603. DOI: 10.1017/gmb.2024.7.


References
1.
Weaver C, Elson C, Fouser L, Kolls J . The Th17 pathway and inflammatory diseases of the intestines, lungs, and skin. Annu Rev Pathol. 2012; 8:477-512. PMC: 3965671. DOI: 10.1146/annurev-pathol-011110-130318. View

2.
Spits H, Artis D, Colonna M, Diefenbach A, Di Santo J, Eberl G . Innate lymphoid cells--a proposal for uniform nomenclature. Nat Rev Immunol. 2013; 13(2):145-9. DOI: 10.1038/nri3365. View

3.
Atarashi K, Tanoue T, Oshima K, Suda W, Nagano Y, Nishikawa H . Treg induction by a rationally selected mixture of Clostridia strains from the human microbiota. Nature. 2013; 500(7461):232-6. DOI: 10.1038/nature12331. View

4.
Mortha A, Chudnovskiy A, Hashimoto D, Bogunovic M, Spencer S, Belkaid Y . Microbiota-dependent crosstalk between macrophages and ILC3 promotes intestinal homeostasis. Science. 2014; 343(6178):1249288. PMC: 4291125. DOI: 10.1126/science.1249288. View

5.
Stanley A, Thompson K, Hynes A, Brakebusch C, Quondamatteo F . NADPH oxidase complex-derived reactive oxygen species, the actin cytoskeleton, and Rho GTPases in cell migration. Antioxid Redox Signal. 2013; 20(13):2026-42. DOI: 10.1089/ars.2013.5713. View