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Aim : To construct an express a mouse-human chimeric antibody against IL-23p19 using a synthetic peptide as immunogen. Methods : Immunization of mice with a synthetic peptide derived from the IL-23p19 sequence and generation of hybridoma secreting specific antibodies. The chimeric antibody was created using two eukaryotic plasmid constructions; one of them carrying the light mouse-human chain and the other the heavy mouse-human chain. CHO-K1 cells were cotransfected with both plasmids and stable transfectants were grown in selective culture medium. Results : A chimeric version of anti-IL-23p19 was successfully constructed and expressed in eukaryotic cells. The expressed chimeric antibody showed specific recognition not only of the peptide used as immunogen but also the subunit p19 and the complete interleukin Il-23. Conclusion : A Chimeric antibody that was developed against a synthetic peptide, which is able to recognize the parent protein IL23 biologically active, could be developed into a targeted therapy in diseases with chronic inflammation.

Generation of a Chimeric Antibody against a Synthetic Peptide Derived From IL-23p19 with Potential Therapeutic Application