肿瘤细胞是一种分化与生长异常的细胞,细胞癌变一向被认为是一种不可逆的、去分化的过程。能否使癌细胞再分化,对于癌生长的控制与治疗将有重要的意义。我们从正常小鼠肝制备了两种核糖核酸,即水层 RNA 与酚层RNA。应用水层 RNA(每毫升8毫克)处理小鼠腹水型肝癌细胞后,癌细胞失去了生长成 Tumor cells are a kind of cells with abnormal differentiation and growth. Cell cancer has always been considered as an irreversible and de-differentiating process. The ability to re-differentiate cancer cells will have important implications for the control and treatment of cancer growth. We prepared two kinds of ribonucleic acids from the liver of normal mice, namely aqueous RNA and phenol layer RNA. After treatment of mouse ascitic hepatoma cells with aqueous RNA (8 mg/ml), the cancer cells lost their growth.