Type 2 Innate Lymphoid Cells in Allergic Disease

ISSN: 1875-631X (Online)
ISSN: 1573-3955 (Print)


Volume 10, 2 Issues, 2014


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Current Immunology Reviews

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Editor-in-Chief:
Cecil Czerkinsky
Institut de Pharmacologie Moleculaire et Cellulaire
UMR 7275 CNRS-INSERM-UNISA
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Type 2 Innate Lymphoid Cells in Allergic Disease

Author(s): Sean Lund, Hannah H. Walford and Taylor A. Doherty

Affiliation: Department of Medicine, University of California San Diego, Biomedical Sciences Building, Room 5080, 9500 Gilman Drive, La Jolla, CA 92093-0635, USA.

Abstract

Type II innate lymphoid cells (ILC2) are a novel population of lineage-negative cells that produce high levels of Th2 cytokines IL-5 and IL-13. ILC2 are found in human respiratory and gastrointestinal tissue as well as in skin. Studies from mouse models of asthma and atopic dermatitis suggest a role for ILC2 in promoting allergic inflammation. The epithelial cytokines IL-25, IL-33, and TSLP, as well as the lipid mediator leukotriene D4, have been shown to potently activate ILC2 under specific conditions and supporting the notion that many separate pathways in allergic disease may result in stimulation of ILC2. Ongoing investigations are required to better characterize the relative contribution of ILC2 in allergic inflammation as well as mechanisms by which other cell types including conventional T cells regulate ILC2 survival, proliferation, and cytokine production. Importantly, therapeutic strategies to target ILC2 may reduce allergic inflammation in afflicted individuals. This review summarizes the development, surface marker profile, cytokine production, and upstream regulation of ILC2, and focuses on the role of ILC2 in common allergic diseases.

Keywords: Allergy, asthma, atopic dermatitis, ILC2, nasal polyps, Type 2 innate lymphoid cells.

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Article Details

Volume: 9
Issue Number: 4
First Page: 214
Last Page: 221
Page Count: 8
DOI: 10.2174/1573395510666140304235916
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