HIGH AFFINITY AND AGGREGATIONALLY STABLE ANTIBODIES BASED ON VL VARIABLE DOMAINS AND VHH DERIVATIVE Russian patent published in 2017 - IPC C07K16/24 C12N15/63 A61K39/395 

Abstract RU 2609627 C2

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

Ulitin Andrej Borisovich

Solovev Valerij Vladimirovich

Nemankin Timofej Aleksandrovich

Goncharova Olga Vladimirovna

Ekimova Viktoriya Mikhajlovna

Evdokimov Stanislav Rudolfovich

Chernykh Yuliya Sergeevna

Korzhavin Dmitrij Valerevich

Sofronova Ekaterina Vladimirovna

Chernovskaya Tatyana Veniaminovna

Ustyugov Yakov Yurevich

Ivanov Roman Alekseevich

Morozov Dmitrij Valentinovich

Dates

2017-02-02Published

2014-09-26Filed