The effect of FEZF1-AS1 on tumor growth was assessed in vivo by administering a subcutaneous injection of PANC-1 cells with stable knockdown of FEZF1-AS1 (sh-FEZF1-AS1) or mock cells (sh-NC) into the subcutaneous bilateral hind leg of nude mice. This evidence concerns the gene FEZF1 and neoplasm.