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Monoclonal antibody

Monoclonal antibodies are made by injecting human cancer cells, or proteins from cancer cells, into mice so that their immune systems create antibodies against foreign antigens. The murine cells producing the antibodies are then removed and fused with laboratory-grown cells to create hybrid cells called hybridomas. Hybridomas can indefinitely produce large quantities of these pure antibodies. Monoclonal antibodies have several roles in cancer therapy.