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Differential expression of functional chemokine receptors on human blood and lung group 2 innate lymphoid cells.

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posted on 08.02.2019, 10:53 by CA Weston, BMJ Rana, DJ Cousins
[First paragraph] Innate lymphoid cells (ILCs), primarily found at mucosal barriers, provide immediate protection against the establishment and spread of infection. ILCs have been divided into 3 subsets analogous to TH cells1: ILC1, ILC2, and ILC3. ILC2s are similar to TH2 cells and express IL-4, IL-5, and IL-13 and were initially identified as a non–T-, non–B-cell source of type 2 cytokines.2 They are found in the blood, gut, skin, and lung where they contribute to host defence. Upon activation, ILCs rapidly produce a large quantity of cytokines and other mediators, which attract and activate other inflammatory cells. In various models of airway disease, ILC2 numbers have been shown to increase with allergen challenge, leading to a significant increase in type 2 inflammatory cytokines.3 Recent studies have demonstrated the existence of a complex interplay between lung epithelial cells and ILC2s that is required for asthma persistence in a mouse model. Furthermore, human studies have suggested that ILC2s provide the key link between viral infection and airway inflammation leading to asthma exacerbations.

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Citation

Journal of Allergy and Clinical Immunology, 2019, 143(1), pp. 410-413.e9

Author affiliation

/Organisation/COLLEGE OF LIFE SCIENCES/School of Medicine/Department of Infection, Immunity and Inflammation

Version

VoR (Version of Record)

Published in

Journal of Allergy and Clinical Immunology

Publisher

Elsevier for American Academy of Allergy, Asthma and Immunology, Mosby

eissn

1097-6825

Acceptance date

24/08/2018

Copyright date

2018

Available date

08/02/2019

Publisher version

https://www.sciencedirect.com/science/article/pii/S0091674918312764?via=ihub

Language

en

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