NCIt definition : A preparation of autologous CD8-positive T-lymphocytes that have been genetically
modified via transient mRNA transfection to express a chimeric antigen receptor (CAR)
specific for the tumor-associated antigen (TAA) human B-cell maturation antigen (BCMA;
tumor necrosis factor receptor superfamily member 17; TNFRSF17) and containing, as
of yet undisclosed co-stimulatory signaling domains, with potential immunostimulating
and antineoplastic activities. Upon administration, autologous anti-BCMA-CAR-mRNA
transfected CD8 T-lymphocytes 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.;