In order to determine the involvement of NR6A1 in neurogenesis of the tumors that were generated from human NT‐2 testicular tumor cells in vivo, we transplanted the NT‐2 cells that were transfected with either NR6A1 or empty vector into nude mice via subcutaneous injections to produce human testicular tumor xenografts. Here, NR6A1 is linked to neoplasm of testis.