Methods for modulating protein glycosylation profiles of recombinant protein therapeutics using monosaccharides and oligosaccharides

摘要

The present invention relates to the field of protein production, and in particular to methods and compositions for modulating glycosylation of proteins expressed in host cells.

主权项

1. A method of producing a composition comprising an immunoglobulin with an increased level of mannosylated N-glycans and/or a decreased level of fucosylated N-glycans, wherein the immunoglobulin comprises a light chain variable region of SEQ ID NO:1 and a heavy chain variable region of SEQ ID NO:2, said method comprising: culturing a mammalian host cell expressing said immunoglobulin in cell culture media supplemented with 5 mM-100 mM sucrose, thereby producing said composition comprising said immunoglobulin with an increased level of mannosylated N-glycans and/or a decreased level of fucosylated N-glycans as compared to a control, wherein said control is a composition comprising the immunoglobulin produced by culturing the mammalian host cell expressing said immunoglobulin in cell culture media which is not supplemented with sucrose.