Genetic glycoengineering in mammalian cells

Genetic Engineering of Mammalian Cells

Labeling glycans on living cells by a chemoenzymatic glycoengineering approach

Structural glycobiology has traditionally been a challenging field due to a limited set of tools available to investigate the diverse and complex glycan molecules. However, we cannot ignore that glycans play critical roles in health as well as in disease, and are present in more than 50% of all proteins and on over 80% of all surface proteins. Chemoenzymatic glycoengineering (CGE) methods are a...

Designed IgM from glycoengineering.

Among the immunoglobulins, the IgGs have received the lion’s share of attention and dominate the monoclonal antibodies (mAbs) that are US Food and Drug Administrationapproved or are in research pipelines leading to the clinic. Whereas IgG is relatively easy to produce and purify and a number of host expression systems have been developed for that isotype, interest in the utility of other isotyp...

An efficient genetic screen in mammalian cultured cells.

Genetic approaches in mammalian cultured cells had limited success because the isolation of mutants and the identification of the mutated genes were often difficult. In the present report, we describe the establishment of a novel genetic screen in Cos-7 cells that allows rapid identification of polypeptides whose overexpression inhibits a certain cellular process. We demonstrate that this appro...

Glycoengineering of CHO Cells to Improve Product Quality.

Chinese hamster ovary (CHO) cells represent the predominant platform in biopharmaceutical industry for the production of recombinant biotherapeutic proteins, especially glycoproteins. These glycoproteins include oligosaccharide or glycan attachments that represent one of the principal components dictating product quality. Especially important are the N-glycan attachments present on many recombi...