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http://ir.nhri.org.tw/handle/3990099045/15860
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| Title: | Selective production of IL-33-neutralizing autoantibody ameliorates asthma responses and severity |
| Authors: | Ji, Y;Wang, E;Mohammed, MT;Hameed, N;Christodoulou, MI;Liu, X;Zhou, W;Fang, Z;Jia, N;Yu, H;Zhou, Z;Sun, Y;Huang, SK;McSharry, C;Zhong, NS;Xiao, X;Li, J;Xu, D |
| Contributors: | National Institute of Environmental Health Sciences |
| Abstract: | BACKGROUND: Natural anti-cytokine autoantibodies can regulate homeostasis of infectious and inflammatory diseases. The anti-cytokine autoantibody profile and relevance to the pathogenesis of asthma are unknown. We aim to identify key anti-cytokine autoantibodies in asthma patients, and reveal their immunological function and clinical significance. METHODS: A Luciferase Immunoprecipitation System was used to screen serum autoantibodies against 11 key cytokines in patients with allergic asthma and healthy donors. The antigen-specificity, immunomodulatory functions and clinical significance of anti-cytokine autoantibodies were determined by ELISA, qPCR, neutralization assays and statistical analysis, respectively. Potential conditions for autoantibody induction were revealed by in vitro immunization. RESULTS: Of 11 cytokines tested, only anti-IL-33 autoantibody was significantly increased in asthma, compare to healthy controls, and the proportion positive was higher in patients with mild-to-moderate than severe allergic asthma. In allergic asthma patients, the anti-IL-33 autoantibody level correlated negatively with serum concentration of pathogenic cytokines (e.g., IL-4, IL-13, IL-25 and IL-33), IgE, and blood eosinophil count, but positively with mid-expiratory flow FEF(25)(-)(75)%. The autoantibodies were predominantly IgG isotype, polyclonal and could neutralize IL-33-induced pathogenic responses in vitro and in vivo. The induction of the anti-IL-33 autoantibody in blood B-cells in vitro required peptide IL-33 antigen along with a stimulation cocktail of TLR9 agonist and cytokines IL-2, IL-4 or IL-21. CONCLUSIONS: Serum natural anti-IL-33 autoantibodies are selectively induced in some asthma patients. They ameliorate key asthma inflammatory responses, and may improve lung function of allergic asthma. |
| Date: | 2024-07 |
| Relation: | Clinical Immunology. 2024 Jul;264:Article number 110234. |
| Link to: | http://dx.doi.org/10.1016/j.clim.2024.110234 |
| JIF/Ranking 2023: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1521-6616&DestApp=IC2JCR |
| Cited Times(WOS): | https://www.webofscience.com/wos/woscc/full-record/WOS:001241492900001 |
| Cited Times(Scopus): | https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85192946259 |
| Appears in Collections: | [黃嘯谷] 期刊論文
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| PUB38740111.pdf | | 6340Kb | Adobe PDF | 63 | View/Open |
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