The present disclosure provides modified immune cells or precursors thereof (e.g. T cells) comprising a chimeric antigen receptor (CAR) capable of binding human PSCA. CARs capable of binding human PSCA, and nucleic acids encoding the same are also provided. Provided herein are bispecific CARs capable of binding human PSCA and human PSMA, nucleic acids encoding the same, and modified immune cells comprising the same. Modified immune cells comprising a PSMA CAR and a PSCA CAR are also provided. Compositions and methods of treatment are also provided.
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