Such antigens include sal‐like gene family, melanoma‐associated antigen gene family, and synovial sarcoma X breakpoint gene family,18, 19 etc. Melanoma‐associated antigen‐A3 (MAGE‐A3) belongs to the melanoma antigen family and has the characteristics of being expressed in a variety of tumor tissues, but hardly expressed in normal tissues except testicular and trophoblast cells. Here, MAGEA3 is linked to neoplasm.