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Autor: Stacey N, Harbour, Daniel F, DiToro, Steven J, Witte, Carlene L, Zindl, Min, Gao, Trenton R, Schoeb, Gareth W, Jones, Simon A, Jones, Robin D, Hatton, Casey T, Weaver
Rok vydání: 2018
Předmět:
Zdroj: Sci Immunol
ISSN: 2470-9468
Popis: Acting in concert with TGF-β, IL-6 signaling induces Th17 cell development by programming Th17-related genes via STAT3. A role for IL-6 signaling beyond the inductive phase of Th17 cell development has not been defined, as IL-23 signaling downstream of Th17 cell induction also activates STAT3 and is thought responsible for Th17 cell maintenance. Here, we find that IL-6 signaling is required for both induction and maintenance of mouse Th17 cells; IL-6Rα–deficient Th17 cells rapidly lost their Th17 phenotype and did not cause disease in two models of colitis. Co-transfer of wild type Th17 cells with IL-6Rα–deficient Th17 cells induced colitis but was unable to rescue phenotype loss of the latter. High IL-6 expression in the colon promoted classic, or cis, rather than trans receptor signaling that was required for maintenance of Th17 cells. Thus, ongoing classic IL-6 signaling underpins the Th17 program and is required for Th17 cell maintenance and function.
Databáze: OpenAIRE