Abstract: The invention relates to an engineered immune cell comprising: (a) a first nucleic acid sequence encoding a chimeric antigen receptor or a chimeric antigen receptor encoded thereby, said chimeric antigen receptor comprises a first antigen binding region, a transmembrane domain, and an intracellular signaling domain; and (b) a second nucleic acid sequence encoding an Fc fusion polypeptide or an Fc fusion polypeptide encoded thereby, said Fc fusion polypeptide comprises a second antigen binding region and an Fc region, wherein the first antigen binding region and the second antigen binding region are not scFv at the same time. The invention also relates to compositions comprising the engineered immune cells of the invention, and the use of the engineered immune cells/compositions in the treatment of cancer.