期刊
CELLS
卷 12, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/cells12212556
关键词
interleukin-10; type 2 inflammation; allergic inflammatory disease; asthma
类别
Growing evidence suggests the critical role of ILC2 in allergic inflammatory conditions, and this review provides a comprehensive overview of a newly discovered regulatory subtype of ILC2. These ILC2 subsets, capable of producing the anti-inflammatory cytokine IL-10, hold potential significance for immune regulation and management of T2 inflammatory conditions.
Over the past two decades, a growing body of evidence observations have shown group two innate lymphoid cells (ILC2) to be critical drivers of Type 2 (T2) inflammatory responses associated with allergic inflammatory conditions such as asthma. ILC2 releases copious amounts of pro-inflammatory T2 cytokines-interleukin (IL)-4, IL-5, IL-9, and IL-13. This review provides a comprehensive overview of the newly discovered regulatory subtype of ILC2 described in murine and human mucosal tissue and blood. These KLRG1+ILC2 have the capacity to produce the anti-inflammatory cytokine IL-10. Papers compiled in this review were based on queries of PubMed and Google Scholar for articles published from 2000 to 2023 using keywords IL-10 and ILC2. Studies with topical relevance to IL-10 production by ILC2 were included. ILC2 responds to microenvironmental cues, including retinoic acid (RA), IL-2, IL-4, IL-10, and IL-33, as well as neuropeptide mediators such as neuromedin-U (NMU), prompting a shift towards IL-10 and away from T2 cytokine production. In contrast, TGF-beta attenuates IL-10 production by ILC2. Immune regulation provided by IL-10+ILC2s holds potential significance for the management of T2 inflammatory conditions. The observation of context-specific cues that alter the phenotype of ILC warrants examining characteristics of ILC subsets to determine the extent of plasticity or whether the current classification of ILCs requires refinement.
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