The Journal of Practical Medicine ›› 2024, Vol. 40 ›› Issue (11): 1513-1518.doi: 10.3969/j.issn.1006-5725.2024.11.008

• Basic Research • Previous Articles     Next Articles

Effects of allergens on the expressions of IL-18, IL-18BPa and IL-18Rα in blood CD4+ Th1 cells of patients with allergic rhinitis

Junling WANG1,2,3,Mengmeng ZHAN1,Fangqiu GU3,Yifei LI1,Zhaolong ZHANG1,Congyi ZHAO1,Danyang ZHAO1,Hui ZHENG1,Yijie ZHANG2,Bingyu. QIN1()   

  1. *.Department of Critical Care Medicine,Henan Provincial People's Hospital,Zhengzhou University People's Hospital,Zhengzhou 450003,China
    *.Department of Respiration,Huaihe Hospital of Henan University,Kaifeng 475000,China
    *.Allergy and Clinical Immunology Research Centre,the First Affiliated Hospital of Jinzhou Medical University,Jinzhou 121001,China
  • Received:2023-09-28 Online:2024-06-10 Published:2024-06-13
  • Contact: Bingyu. QIN E-mail:nicolasby@126.com

Abstract:

Objective To investigate the effects of allergens on the expressions of IL-18, IL-18BPa and IL-18Rα protein in peripheral blood CD4+ Th1 cells of healthy control subjects (HC) and patients with allergic rhinitis (AR), and on the expressions of IL-18, IL-18BPa and IL-18Rα mRNA in the peripheral blood CD4+ T cells. Methods Blood samples were collected from patients with rhinitis for negative skin prick test (AR-), rhinitis for positive skin prick test (AR+) and HC. Flow cytometry was used to evaluate the effects of allergens on the expressions of IL-18, IL-18BPa and IL-18Rα protein in CD4+ Th1 cells. The expressions of IL-18, IL-18BPa and IL-18Rα mRNA in CD4+ T cells were determined by qPCR. Results Compared with HC, increased IL-18 while decreased IL-18BPa expressions in Th1 cells of AR- and AR+ patients were observed, increased IL-18Rα expression in Th1 cells of AR+ patients was also found. Additionally, allergens induced elevated expression of IL-18Rα protein in Th1 cells of HC, and induced elevated mRNA expressions of IL-18, IL-18BPa and IL-18Rα in isolated blood CD4+ T cells of AR+ patients and HC. Conclusion Allergens may be involved in the pathogenesis of AR by inducing the expressions of IL-18 and IL-18Rα in blood CD4+ Th1 cells.

Key words: allergic rhinitis, CD4+ Th1 cell, IL-18, IL-18Rα

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