First Author | Ohnmacht C | Year | 2015 |
Journal | Science | Volume | 349 |
Issue | 6251 | Pages | 989-93 |
PubMed ID | 26160380 | Mgi Jnum | J:225908 |
Mgi Id | MGI:5694895 | Doi | 10.1126/science.aac4263 |
Citation | Ohnmacht C, et al. (2015) MUCOSAL IMMUNOLOGY. The microbiota regulates type 2 immunity through RORgammat(+) T cells. Science 349(6251):989-93 |
abstractText | 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 (T(H)17) cells and regulatory T cells (T(regs)) in the intestine. Here, we report that microbiota-induced T(regs) express the nuclear hormone receptor RORgammat and differentiate along a pathway that also leads to T(H)17 cells. In the absence of RORgammat(+) T(regs), T(H)2-driven defense against helminths is more efficient, whereas T(H)2-associated pathology is exacerbated. Thus, the microbiota regulates type 2 responses through the induction of type 3 RORgammat(+) T(regs) and T(H)17 cells and acts as a key factor in balancing immune responses at mucosal surfaces. |