Clinical Study of CAR-T Technology for the Treatment of Relapsed Refractory Malignant Haematological Tumours

The application of CAR-T therapy in the clinic generally involves the in vitro preparation and in vivo infusion of CAR-T, and the specific experimental process is divided into five steps: (1) isolation of T cells from the peripheral blood of the cancer subjects or single harvested single nucleated cells; (2) use of genetic engineering to transfer CAR structural genes that can specifically recognise the tumour cells into the T cells; (3) in vitro cultivation and expansion of CAR-T cells to the desired infusion dose (4) Non-myeloablative chemotherapy is administered prior to the infusion of CAR-T cells, which is used to remove immunosuppressive cells and reduce the tumour load so as to enhance the efficacy of the treatment; (5) CAR-T cells are infused according to the expected dosage, and the efficacy of the treatment is observed and the adverse reactions are closely monitored.