DSCR9 and familial pancreatic carcinoma: Since miR-21-5p directly targets DSCR9 and the BTG2 3′UTR, the dynamic effects of DSCR9 and miR-21-5p on BTG2 expression and pancreatic cancer cell phenotype were examined to determine whether DSCR9 and miR-21-5p exert their functions via BTG2.