Science advances · 2019
The regulatory B cell-mediated peripheral tolerance maintained by mast cell IL-5 suppresses oxazolone-induced contact hypersensitivity.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Kim Hyuk Soon, Lee Min Bum, Lee Dajeong, Min Keun Young, Koo Jimo, Kim Hyun Woo, Park Young Hwan, Kim Su Jeong, Ikutani Masashi, Takaki Satoshi, Kim Young Mi, Choi Wahn Soo
Аннотация
The function of regulatory immune cells in peripheral tissues is crucial to the onset and severity of various diseases. Interleukin-10 (IL-10)-producing regulatory B (IL-10+ Breg) cells are known to suppress various inflammatory diseases. However, evidence for the mechanism by which IL-10+ Breg cells are generated and maintained is still very limited. Here, we found that IL-10+ Breg cells suppress the activation of IL-13-producing type 2 innate lymphoid cells (IL-13+ ILC2s) in an IL-10-dependent manner in mice with oxazolone-induced severe contact hypersensitivity (CHS). Mast cell (MC) IL-5 was important for maintaining the population of IL-10+ Breg cells in peripheral lymphoid tissues. Overall, these results uncover a previously unknown mechanism of MCs as a type of immunoregulatory cell and elucidate the cross-talk among MCs, IL-10+ Breg cells, and IL-13+ ILC2s in CHS.