» Articles » PMID: 24265914

Commensal Microbiota Drive Proliferation of Conventional and Foxp3(+) Regulatory CD4(+) T Cells in Mesenteric Lymph Nodes and Peyer's Patches

Overview
Publisher Akademiai Kiado
Date 2013 Nov 23
PMID 24265914
Citations 26
Authors
Affiliations
Soon will be listed here.
Abstract

Compelling evidence demonstrates that intestinal commensal microbiota modulate conventional and regulatory T cell (Treg) responses that are required for effective host defence against pathogens and avoidance of autoimmunity and other immunopathologic conditions. Here, we investigated the contribution of the commensal microbiota and Toll-like receptor (TLR) signaling to homeostasis of Foxp3(-) conventional CD4(+) T cells and Foxp3(+) Tregs. Upon long-term antibiotics treatment, we observed a significant reduction of conventional CD4(+) T cell proliferation in a systemic manner, whereas Foxp3(+) Treg proliferation was locally impaired in gut-draining mesenteric lymph nodes and Peyer's patches. The proliferative response to microbial components was not mediated by TLRs as MyD88- and various TLR-deficient mice displayed normal or even increased conventional T cell and Foxp3(+) Treg proliferation. Thus, commensal microbiota-derived stimuli support cycling of both conventional CD4(+) T cells and Foxp3(+) Tregs with TLR-mediated recognition of bacterial components not being the major mechanism controlling microbiota-driven T cell homeostasis.

Citing Articles

Effects of infection on intestinal microbiota, immunity and colorectal cancer risk.

Engelsberger V, Gerhard M, Mejias-Luque R Front Cell Infect Microbiol. 2024; 14:1339750.

PMID: 38343887 PMC: 10853882. DOI: 10.3389/fcimb.2024.1339750.


Immune stress suppresses innate immune signaling in preleukemic precursor B-cells to provoke leukemia in predisposed mice.

Isidro-Hernandez M, Casado-Garcia A, Oak N, Aleman-Arteaga S, Ruiz-Corzo B, Martinez-Cano J Nat Commun. 2023; 14(1):5159.

PMID: 37620322 PMC: 10449887. DOI: 10.1038/s41467-023-40961-z.


Effects of rearing system and antibiotic treatment on immune function, gut microbiota and metabolites of broiler chickens.

Song B, Li P, Xu H, Wang Z, Yuan J, Zhang B J Anim Sci Biotechnol. 2022; 13(1):144.

PMID: 36522791 PMC: 9756480. DOI: 10.1186/s40104-022-00788-y.


Low-dose IL-2 shapes a tolerogenic gut microbiota that improves autoimmunity and gut inflammation.

Tchitchek N, Nguekap Tchoumba O, Pires G, Dandou S, Campagne J, Churlaud G JCI Insight. 2022; 7(17).

PMID: 35917175 PMC: 9536277. DOI: 10.1172/jci.insight.159406.


The Effect of the Gut Microbiota on Systemic and Anti-Tumor Immunity and Response to Systemic Therapy against Cancer.

Aghamajidi A, Maleki Vareki S Cancers (Basel). 2022; 14(15).

PMID: 35892821 PMC: 9330582. DOI: 10.3390/cancers14153563.


References
1.
Kabelitz D . Expression and function of Toll-like receptors in T lymphocytes. Curr Opin Immunol. 2006; 19(1):39-45. DOI: 10.1016/j.coi.2006.11.007. View

2.
Chen Q, Davidson T, Huter E, Shevach E . Engagement of TLR2 does not reverse the suppressor function of mouse regulatory T cells, but promotes their survival. J Immunol. 2009; 183(7):4458-66. PMC: 2788511. DOI: 10.4049/jimmunol.0901465. View

3.
Lathrop S, Santacruz N, Pham D, Luo J, Hsieh C . Antigen-specific peripheral shaping of the natural regulatory T cell population. J Exp Med. 2008; 205(13):3105-17. PMC: 2605228. DOI: 10.1084/jem.20081359. View

4.
Izcue A, Coombes J, Powrie F . Regulatory T cells suppress systemic and mucosal immune activation to control intestinal inflammation. Immunol Rev. 2006; 212:256-71. DOI: 10.1111/j.0105-2896.2006.00423.x. View

5.
Mills K . TLR9 turns the tide on Treg cells. Immunity. 2008; 29(4):518-20. DOI: 10.1016/j.immuni.2008.09.005. View