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Oncoimmunology. 2015 Dec 21;5(4):e1118601. doi: 10.1080/2162402X.2015.1118601. eCollection 2016 Apr.

Procarcinogenic regulatory T cells in microbial-induced colon cancer.

Oncoimmunology

Abby L Geis, Franck Housseau

Affiliations

  1. Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University , Baltimore, MD, USA.

PMID: 27141400 PMCID: PMC4839357 DOI: 10.1080/2162402X.2015.1118601

Abstract

Regulatory T cell (Treg) promote IL-17-mediated colon tumorigenesis in multiple intestinal neoplasia (Min) mice colonized with enterotoxigenic Bacteroides fragilis (ETBF). Although they retain their immunosuppressive function, mucosal Treg are instrumental to initiate ETBF-triggered IL-17 colitis by limiting the availability of IL-2 in the local microenvironment. However, the mechanisms that trigger the recruitment of the pro-carcinogenic Treg in ETBF-colonized colon remained to be elucidated.

Keywords: Carcinogenesis; Enterotoxigenic Bacteroides fragilis; IL-17; inflammation; Microbiome

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