NCIt definition : A preparation of autologous T-lymphocytes that have been engineered to express a chimeric
autoantibody receptor (CAAR) containing the autoantigen desmoglein-3 (desmoglein 3;
DSG3) that is fused to the co-stimulatory domain of 4-1BB (CD137) and the T-cell receptor
signaling domain of CD3zeta (CD3z), with potential immunomodulatory activity. Upon
administration, the autologous DSG3 chimeric autoantibody receptor T-cells (CAART)
DSG3-CAART specifically recognize and induce selective toxicity in aberrant B-cells
expressing DSG3 autoantibodies. This inhibits the production of DSG3 autoantibodies.
DSG3 is a protein expressed in desmosomes that plays an important role in cell adhesion.
DSG3 autoantibodies are produced and expressed by aberrant B-cells in the autoimmune
disease mucosal-dominant pemphigus vulgaris.;