The process involves several steps. First, T cells are isolated from the patient's blood. These cells are then genetically modified to express receptors, such as chimeric antigen receptors (CARs) or T cell receptors (TCRs), which can specifically recognize and bind to antigens on the surface of tumor cells. Following modification, the T cells are expanded in the lab and then infused back into the patient, where they seek out and destroy cancer cells.
