The microbiota regulates type 2 immunity through RORγt+ T cells

Caspar Ohnmacht, Joo Hong Park, Sascha Cording, James B. Wing, Koji Atarashi, Yuuki Obata, Valérie Gaboriau-Routhiau, Rute Marques, Sophie Dulauroy, Maria Fedoseeva, Meinrad Busslinger, Nadine Cerf-Bensussan, Ivo G. Boneca, David Voehringer, Koji Hase, Kenya Honda, Shimon Sakaguchi, Gérard Eberl

Research output: Contribution to journalArticlepeer-review

611 Citations (Scopus)


Changes to the symbiotic microbiota early in life, or the absence of it, can lead to exacerbated type 2 immunity and allergic inflammations. Although it is unclear how the microbiota regulates type 2 immunity, it is a strong inducer of proinflammatory T helper 17 (TH17) cells and regulatory T cells (Tregs) in the intestine. Here, we report that microbiota-induced Tregs express the nuclear hormone receptor RORγt and differentiate along a pathway that also leads to TH17 cells. In the absence of RORγt+ Tregs, TH2-driven defense against helminths is more efficient, whereas TH2-associated pathology is exacerbated. Thus, the microbiota regulates type 2 responses through the induction of type 3 RORγt+ Tregs and TH17 cells and acts as a key factor in balancing immune responses at mucosal surfaces.

Original languageEnglish
Pages (from-to)989-993
Number of pages5
Issue number6251
Publication statusPublished - 2015 Aug 28
Externally publishedYes

ASJC Scopus subject areas

  • General


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