MUSK and myasthenia gravis: To determine whether MuSK-CAART demonstrates efficacy in an immunocompetent mouse model that recapitulates features of autoimmune pathophysiology, including rare anti-MuSK B cells and polyclonal autoantibodies, we evaluated MuSK-CAART efficacy in a syngeneic MuSK experimental autoimmune myasthenia gravis (EAMG) model.