Characterization of chicken interleukin-9 receptor alpha chain

Autor: Shuangjiang He, Huining Zhang, Shi Yin, Xiaoli Hao, Yi Yang, Shaobin Shang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Poultry Science, Vol 102, Iss 10, Pp 102965- (2023)
Druh dokumentu: article
ISSN: 0032-5791
DOI: 10.1016/j.psj.2023.102965
Popis: ABSTRACT: Interleukin-9 receptor alpha chain (IL-9Rα) is the ligand-binding subunit of IL-9R that plays roles in IL-9-mediated allergy, inflammation, infection, and tumor immunity. While mammalian IL-9Rαs have been extensively investigated, avian IL-9Rα has not yet been identified and characterized. In this study, we cloned chicken IL-9Rα (chIL-9Rα) and performed a phylogenetic analysis, analyzed its tissue distribution, characterized the expression form of natural chIL-9Rα. Phylogenetic analysis showed that chIL-9Rα has less than 25% amino acid homology with mammalian IL-9Rαs. The chIL-9Rα mRNA was abundantly detected only in heart and mitogen-activated peripheral blood mononuclear cells. Furthermore, 4 monoclonal antibodies (mAbs) against chIL-9Rα were generated using prokaryotic recombinant chIL-9Rα (rchIL-9Rα). Using anti-chIL-9Rα mAbs, natural chIL-9Rα expressed on the splenocytes of chickens was observed by indirect immunofluorescence assay (IFA), and its molecular weight of 51 kDa was identified by Western blotting. Overall, our study reveals for the first time the presence of IL-9Rα in birds, and provides immunological tools for further investigating the roles of chIL-9 in diseases and immunity.
Databáze: Directory of Open Access Journals