NCIt definition : A glycoengineered, humanized IgG1 monoclonal antibody with potential antineoplastic
activity. Obinutuzumab, a third generation type II anti-CD20 antibody, selectivity
binds to the extracellular domain of the human CD20 antigen on malignant human B cells.
The Fc region carbohydrates of the antibody, enriched in bisected non-fucosylated
glycosylation variants, contribute to its higher binding affinity for human FcgammaRIII
receptors compared to non-glycoengineered antibodies, resulting in enhanced antibody-dependent
cellular cytotoxicity (ADCC) and caspase-independent apoptosis. In addition, modification
of elbow hinge sequences within the antibody variable framework regions may account
for the strong apoptosis-inducing activity of R7159 upon binding to CD20 on target
cells.;
UNII : O43472U9X8;
CAS number : 949142-50-1;
Drug name : Gazyva;
Molecule name : R-7159; RO 5072759; GA-101; RO-5072759; GA 101; R 7159;