RASAL1 and ovarian adenocarcinoma: As shown in Fig 3, RASAL1 expression levels in ovarian adenocarcinoma cell lines (HEY and A2780) were significantly higher (both P < 0.01) compared to the normal cell line, and RASAL1 expression levels in the HEY cell line was much higher than in the A2780 cell line (P < 0.01).