Fig. 1From: Recent findings on chimeric antigen receptor (CAR)-engineered immune cell therapy in solid tumors and hematological malignanciesChimeric antigen receptors' structure and generations. A CAR structure and mechanism of action. B CAR T-cell generations. C CAR NK-cell generations. Abbreviations: CAR (Chimeric antigen receptor), TAAs (tumor-associated antigens), NFAT (Nuclear factor of activated T-cells)Back to article page