MSLN and ovarian carcinoma: Results (Fig. 3b) showed that LCAR-M23 CAR T cells possessed specific killing property against MSLN-expressing ovarian cancer cell lines (OVCAR-3, CAOV-3, and SK-OV-3), and no cytotoxicity was observed against MSLN-negative cell lines (A-431, K-562, and HEK-293).