NCIt definition : A preparation of autologous CD4- and CD8-positive T-lymphocytes that have been ex
vivo transduced with a genetically-engineered lentiviral vector (LV) expressing a
chimeric antigen receptor (CAR) containing a single chain variable fragment (scFv)
specific for the tumor-associated antigen (TAA) human B-cell maturation antigen (BCMA;
tumor necrosis factor receptor superfamily member 17; TNFRSF17) fused to the co-stimulatory
domain of 4-1BB (CD137) and the CD3-zeta (CD3z) T-cell signaling domain, with potential
immunostimulating and antineoplastic activities. Upon administration, orvacabtagene
autoleucel specifically recognize and induce selective toxicity in BCMA-expressing
tumor cells. BCMA, a tumor-specific antigen and a receptor for both a proliferation-inducing
ligand (APRIL) and B-cell activating factor (BAFF), is a member of the tumor necrosis
factor receptor superfamily (TNFRSF) and plays a key role in plasma cell survival.
BCMA is found on the surfaces of plasma cells and overexpressed on malignant plasma
cells.;