Transforming growth factor-beta and Notch ligands act as opposing environmental cues in regulating the plasticity of type 3 innate lymphoid cells
Details
Publication Year 2016,Volume 9,Issue #426,Page ra46
Journal Title
Sci Signal
Publication Type
Journal Article
Abstract
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.
Publisher
AAAS
Research Division(s)
Bioinformatics; Molecular Immunology
PubMed ID
27141930
Terms of Use/Rights Notice
Refer to copyright notice on published article.


Creation Date: 2016-06-15 08:01:05
Last Modified: 2016-06-15 08:23:03
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