Objective: To investigate the change of biological characteristics after stable knockdown of CKLF-like MARVEL transmembrane domain containing 3( CMTM3) expression in PC3 by lentivirus shRNA and to reveal new therapeutic targets. Methods: The research includes two groups: sh393 is the experimental group in which CMTM3 is knocked down in PC3 cell line; sh N is the control group in which CMTM3 is negatively knocked down. The expression of CMTM3 was detected by Western blot. The migration ability of PC3 after s...