Article
Highly efficient deletion of <i>FUT8</i> in CHO cell lines using zinc‐finger nucleases yields cells that produce completely nonfucosylated antibodies
8 Apr 2010
Abstract excerpt
IgG1 antibodies produced in Chinese hamster ovary (CHO) cells are heavily alpha1,6-fucosylated, a modification that reduces antibody-dependent cellular cytotoxicity (ADCC) and can inhibit therapeutic antibody function in vivo. Addition of fucose is catalyzed by Fut8, a alpha1,6-fucosyltransferase. FUT8(-/-) CHO cell lines produce completely nonfucosylated antibodies, but the difficulty of recapitulating the...
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