Rituximab (MS4A1) - Research Grid Biosimilar

Rituximab is a genetically engineered chimeric murine/human monoclonal antibody directed against the CD20 antigen found on the surface of normal and malignant B lymphocytes. The antibody is an IgG1 kappa immunoglobulin containing murine light and heavy-chain variable region sequences and human constant region sequences 6, Label. It was originally approved by the U.S. FDA in 1997 as a single agent to treat patients with B-cell Non-Hodgkin's Lymphoma (NHL) 8, however, has now been approved for a variety of conditions Label. On November 28, 2018, the US FDA approved Truxima, the first biosimilar to Rituxan (Rituximab) 7.Rituximab is a monoclonal antibody that targets the CD20 antigen, which is expressed on the surface of pre-B and mature B-lymphocytes 1, 2, 3, Label. After binding to CD20, rituximab mediates B-cell lysis (or breakdown) . The possible mechanisms of cell lysis include complement dependent cytotoxicity (CDC) and antibody dependent cell-mediated cytotoxicity (ADCC) Label.

Chimeric / MS4A1 [Homo sapiens]

Unconjugated

Primary Antibodies, Biosimilars

CHO cells

Cancer

>95%

Batch dependent

PBS buffer pH7.5

None

Blue Ice

Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8 ˚ C for 1-2 weeks. Store at -20 ˚ C for 12 months. Store at -80 ˚ C for long term storage.

IgG1-kappa

Homo sapiens

IDEC-C2B8