The Regulation of the IL-18 on Group 2 Innate Lymphoid Cells in Allergic Rhinitis

Autor: Chuling Li, Yaxiong Xu, Xianglin Luo, Fajian Chen
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Iranian Journal of Immunology, Vol 18, Iss 3, Pp 188-194 (2021)
Druh dokumentu: article
ISSN: 1735-1383
1735-367X
DOI: 10.22034/iji.2021.85982.1734
Popis: Background: Group 2 innate lymphoid cells (ILC2s) promote allergic inflammation by producing interleukin-4 (IL-4), IL-5, IL-9, and IL-13. IL-18 can promote T helper 2 cell (Th2) response by inducing IL-4, and IL-13 production from mast cells and basophils. However, the regulation of IL-18 on ILC2s remained unknown. Objective: To investigate the regulatory role of IL-18 in inducing the type 2 innate lymphoid cells. Methods: Twenty patients with allergic rhinitis (AR) and 20 controls were enrolled. The mRNA and protein levels of IL-18 in serum, as well as the frequencies of ILC2 in peripheral blood mononuclear cells (PBMCs) were measured by real-time polymerase chain reaction (PCR), enzyme-linked immunosorbent assay (ELISA), and flow cytometry. The ILC2s were sorted and the mRNA expression of IL-18 receptor in ILC2 was analyzed by real-time PCR. The effects of IL-18 on the proliferation and type 2 cytokine production were detected by tritiated thymidine incorporation test, real-time PCR, and ELISA, respectively. Results: The levels of IL-18 mRNA and protein were significantly higher in AR patients than in the controls (P
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