scFv(CD33)-CD28-OX40-CD3zeta CAR-T Lentivirus

Chimeric antigen receptor T-cell (CAR-T) therapy is a groundbreaking immunotherapy that harnesses the power of a patient''s own T cells to target and destroy cancer cells. This innovative treatment begins with T cells collected from the patient''s blood. These cells are then genetically modified in the laboratory to express a chimeric antigen receptor (CAR), designed to recognize a specific antigen on the surface of tumor cells. Once the T cells are modified, they are expanded and infused back into the patient. The CAR enables these modified T cells to recognize and bind to cancer cells, ultimately activating the T cells and triggering an immune response that significantly shrinks or eliminates the tumor. CAR-T therapy has achieved remarkable success in treating certain hematological malignancies, such as acute lymphoblastic leukemia (ALL) and certain types of lymphoma, offering hope for patients who have exhausted other treatment options.

CAR-T lentivirus, as a vector for genetically modifying T cells, has played a crucial role in the development of CAR-T therapy. Derived from lentivirus, lentiviral vectors, due to their unique integration ability, can integrate into the host cell genome, enabling sustained expression of the CAR, and are used to deliver the CAR gene to T cells. This is particularly important for long-term efficacy because it enables the modified T cells to maintain their ability to target cancer. The use of lentivirus not only enhances the persistence of CAR expression, but also promotes the potential for the simultaneous construction of multiple CARs or other therapeutic genes. The process involves transducing a lentiviral vector containing the CAR gene into human T cells to ensure that the T cells can effectively recognize and attack tumor cells. Studies have shown that CAR-T cells derived from lentiviral modified T cells can exhibit a strong anti-tumor response, making this approach a key component in the development of personalized cancer therapies.