The present invention provides a chimeric antigen receptor (CAR) comprising: (i) a B cell maturation antigen (BCMA)-binding domain which comprises at least part of a proliferation-inducing ligand (APRIL)； (ii) a spacer domain (iii) a transmembrane domain； and (iv) an intracellular T cell signaling domain. The invention also provides the use of such a T-cell expressing such a CAR in the treatment of plasma-cell mediated diseases, such as multiple myeloma.
