从肺癌病人胸水和小鼠Hepatoma腹水中提取抑癌因子,分别作用于人羊膜上皮细胞、人喉上皮癌细胞、小鼠Hepatoma细胞、小鼠Sarcoma180细胞。实验证明,两种不同来源的抑癌因子对人羊膜上皮细胞影响极小,对三种癌细胞都有强烈的杀伤作用。这种专一杀伤癌细胞的特点可能在理论上和实用上有重要意义。 The tumor suppressor factors were extracted from lung cancer patient pleural effusion and mouse Hepatoma ascitic fluid and acted on human amniotic epithelial cells, human laryngeal epithelial cancer cells, mouse Hepatoma cells, and mouse Sarcoma 180 cells, respectively. Experiments have shown that two different sources of tumor suppressor factors have little effect on human amniotic epithelial cells and have a strong killing effect on the three types of cancer cells. This specific killing of cancer cells may be of theoretical and practical significance.