In another study by Deng et al., it is proved that EpCAM‐specific CARs can inhibit the growth of the human prostate cancer cell line PC3, a kind of cell line with low expression levels of EpCAM or kill PC3M (a highly metastatic clone of PC3 with high expression of EpCAM) in vitro and in vivo. This evidence concerns the gene EPCAM and Familial prostate cancer.