期刊
SCIENCE SIGNALING
卷 9, 期 426, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/scisignal.aaf2176
关键词
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资金
- European Research Council (THINK Advanced Grant)
- Ligue Nationale contre le Cancer (Equipe Labellisee)
- INSERM
- CNRS
- NHMRC of Australia [GNT 1027472, 1054925, 1049407, 1078671]
- NHMRC Dora Lush Postgraduate Research Scholarship
- Australian Research Council Future Fellowship
- Aix-Marseille University
- National Health and Medical Research Council of Australia [1078671] Funding Source: NHMRC
Group 3 innate lymphoid cells (ILC3s) are composed of subsets that are either positive or negative for the natural cytotoxicity receptor (NCR) NKp46 (encoded by Ncr1). ILC3s are located at mucosal sites, such as in the intestine and lung, where they are exposed to billions of commensal microbes and potentially harmful pathogens. Together with T cells, the various ILC3 subsets maintain the balance between homeostasis and immune activation. Through genetic mapping, we identified a previously uncharacterized subset of NCR- ILC3s in mice that transiently express Ncr1, demonstrating previously undescribed heterogeneity within the ILC3 population. In addition, we showed that sustained Notch signaling was required for the maintenance of the NCR+ phenotype and that the cytokine transforming growth factor-beta (TGF-beta) impaired the development of NCR+ ILC3s. Thus, the plasticity of ILC3s is regulated by the balance between the opposing effects of Notch and TGF-beta signaling, maintaining homeostasis in the face of continual challenges.
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