FIELD: medicine, pharmacy.
SUBSTANCE: invention refers to biochemistry. A humanized IgG type monoclonal antibody that binds to human 17A interleukin is proposed. The antibody contains variable domains as a combination of VHH derivative with a light chain VL variable domain. The said VHH derivative contains amino acid substitutions at positions 44 and 45 (according to Kabat numbering). The invention also refers to DNA encoding the antibody, expression vector, cell line and a method for production of the said antibody. Furthermore, a pharmaceutical composition for treatment of IL-17A-mediated disease or disorder, comprising the antibody is proposed.
EFFECT: invention allows to obtain antibodies with high affinity and enhanced aggregation stability.
15 cl, 17 dwg, 6 tbl, 19 ex
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Authors
Dates
2017-02-02—Published
2014-09-26—Filed