Integrin 7 BCMA CS1 CD38 and CD138 as the Single or Compound Targets for the Fourth Genenation of CAR-T Cells

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    The Sixth Affiliated Hospital of Wenzhou Medical University
Updated on 6 February 2023


According to the high expression of tumor cell-associated antigen CD138, integrin 7, CS1, CD38 and BCMA in patients with refractory/recurrent multiple myeloma, the fourth generation of CAR-T cells(simultaneously expressing IL7 and CCL19) with 10 different dual target combinations are used to minimize the tumor burden in the patient individually and precisely and improve the immunosuppressive microenvironment of the tumor , thereby effectively treating refractory/recurrent multiple myeloma .


Multiple myelomaMM is one of the most common malignant diseases in the blood system.There is still no cure for the disease which only control the development of the disease in various ways including proteasome inhibitors and immune regulator and hematopoietic stem cell transplantation . Combined with the advantages of multiple therapies, chimeric antigen receptor T cells (CAR-T) have gradually becoming one of the strongest and most powerful weapons against multiple myeloma.The basic principle is to use the patient's own immune cells to clear cancer cells.

MM is genetically and phenotypically heterogeneous,Antigen escape and relapse after CAR-T treatment is a global problem so the effective treatment of refractory/relapsing multiple myeloma with CAR-T cells usually requires targeting multiple antigens. The investigators use Integrin 7(a large family of molecules that are central regulators in multicellular biology and orchestrating cell-cell and cell-extracellular matrix (ECM) adhesive interactions from embryonic development to mature tissue function), BCMA(highly expressed on malignant MM plasma cells and providing a substantial antiapoptotic signal making it an encouraging target for BCMA-directed immunotherapy),CS1(encoded by the SLAMF7 gene,a robust marker of normal plasma cells and malignant plasma),CD38(encoded by the CD38 gene and functioning in cell adhesion, signal transduction and calcium signaling) and CD138(known as syndecan 1, a surface protein expressed on most healthy and malignant plasma cells as an adhesion protein, binding collagen and fibronectin molecules located in the extracellular matrix. ) as the Single or Compound Targets for the Fourth Genenation of CAR-T Cells ,thereby effectively treating refractory/recurrent multiple myeloma .

Condition rrMM
Treatment CAR-T therapy in Relapsed/Refractory multiple myeloma
Clinical Study IdentifierNCT03778346
SponsorThe Sixth Affiliated Hospital of Wenzhou Medical University
Last Modified on6 February 2023

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