期刊
NATURE IMMUNOLOGY
卷 12, 期 11, 页码 1071-U73出版社
NATURE PORTFOLIO
DOI: 10.1038/ni.2133
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资金
- Medical Research Council UK [U117512792]
- [Sonderforschungsbereich (SFB 587)]
- MRC [MC_U117512792] Funding Source: UKRI
- Medical Research Council [MC_U117512792] Funding Source: researchfish
Interleukin 9 (IL-9) is a cytokine linked to lung inflammation, but its cellular origin and function remain unclear. Here we describe a reporter mouse strain designed to map the fate of cells that have activated IL-9. We found that during papain-induced lung inflammation, IL-9 production was largely restricted to innate lymphoid cells (ILCs). IL-9 production by ILCs depended on IL-2 from adaptive immune cells and was rapidly lost in favor of other cytokines, such as IL-13 and IL-5. Blockade of IL-9 production via neutralizing antibodies resulted in much lower expression of IL-13 and IL-5, which suggested that ILCs provide the missing link between the well-established functions of IL-9 in the regulation of type 2 helper T cell cytokines and responses.
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