ANTI-PD-L1/ANTI-CD47 BISPECIFIC ANTIBODY WITH STRUCTURE LIKE NATURAL ANTIBODY AND IN FORM OF HETERODIMER AND PREPARATION THEREOF

Provided are an anti-PD-L1/anti-CD47 bispecific antibody that has natural IgG characteristics and is in a highly stable heterodimer form without the heavy chain and light chain being mismatched, and a preparation method therefor. Either the first Fc chain or second Fc chain of the bispecific antibod...

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Bibliographic Details
Main Authors YANG, Yaping, SONG, Nanmeng, LIU, Jiawang, KIM, Maengsup
Format Patent
LanguageEnglish
French
German
Published 15.09.2021
Subjects
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Summary:Provided are an anti-PD-L1/anti-CD47 bispecific antibody that has natural IgG characteristics and is in a highly stable heterodimer form without the heavy chain and light chain being mismatched, and a preparation method therefor. Either the first Fc chain or second Fc chain of the bispecific antibody comprises amino acid substitutions at positions 366 and 399, and the other comprises amino acid substitutions at positions 351, 407 and 409.
Bibliography:Application Number: EP20180887151