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Development and characterization of anti-IL-5 monoclonal antibody Fab fragment for blocking IL-5/IL-5Rα binding

International Immunopharmacology. 2023-10; 
Shijie Li , Shijie Wang , Eric Fordjour , Yaoji Liang , Xuelian Wang , Yonghao Ye , Zhonghu Bai , Yankun Yang , Yongqi Chen
Products/Services Used Details Operation
Gene Synthesis Gene synthesis and plasmid construction (Supplementary method 3) of 20A12-Fab was performed by GenScript Corporation (China)/An overlapping peptide library was designed and synthesized in Genscript Get A Quote
Peptide Synthesis Get A Quote


Interleukin-5 (IL-5) is a homodimeric cytokine that is a crucial regulator of the proliferation, activation, and maturation of eosinophils. Anti-IL-5 monoclonal antibodies, which block the binding of IL-5 to the IL-5 receptor subunit alpha (IL-5Rα), have been successfully used to treat eosinophilic (EOS) asthma. The currently marketed monoclonal antibody drugs require repeated injections for administration, which seriously affect patient compliance and high systemic exposure for injectable drug delivery. Here we successfully screened and developed the Fab (fragment of antigen binding), which is 1/3rd the molecular weight of IgG, favoring inhalationmediated delivery to the lungs, making it more effective for... More


Eosinophilic asthma Fab fragment antibody Inhalation-mediated delivery Interleukin-5 Interleukin-5 receptor subunit alpha