摘要
目的 :对比观察人胎肝细胞和胎牛肝细胞低分子天然抑瘤物 (L MW- NTS)对小鼠腹腔积液型 S- 180细胞生长的抑制效应。方法 :分别从胎儿肝细胞和胎牛肝细胞中分离提取出 L MW- NTS。采用体外双层软琼脂培养法检测它们对 S- 180细胞集落生成的抑制作用 ;给两组荷瘤小鼠每日分别腹腔注射人胎肝细胞和胎牛肝细胞L MW- NTS 0 .5 m g/只 ,每日 1次连续注射 2 1天 ,观察小鼠的寿命。结果 :人胎肝细胞和胎牛肝细胞 L MW- NTS对S- 180细胞的生长均有明显的抑制作用 ,且抑制作用随 L MW- NTS浓度增高而增强 ;腹腔注射治疗荷瘤小鼠均能显著延长小鼠寿命。结论 :人胎肝细胞和胎牛肝细胞中均存在着一种作用相似的 L MW- NTS,在体内外均具有明显的抗肿瘤活性。
Objective:Effect of the low molecular weight natural tumor suppressor (LMW NTS) of human fetal hepatocyte and that of embryo calf hepatocyte on the growth of murine S 180 cells was observed.Methods:LMW NTS was isolated respectively from human fetal hepatocyte and embryo calf hepatocyte.(1)In vitro two layers agar plate culture method was used to detect the suppressive effect of the human fetal hepatocyte LMW NTS and the emtryo calf hepatocyte LMW NTS on the growth of murine S 180 cells.(2)Surviral of the mice bearing S 180 cells and treated respectively with intraperitoneal injections of the human fetal hepatocyte LMW NTS or the embryo calf hepatocyte LMW NTS(0.5 mg/one mouse/day for 21 days)was surveyed.Results:Both the human fetal hepatocyte LMW NTS and the embryo calf hepatocyte LMW NTS can obviously inhibit the growth of murine S 180 cell,and the suppressive effect was enhanced while the concentration of LMW NTS was increased.Survival of the mice bearing tumor that treated with intraperitoneal injections of the human fetal hepatocyte LMW NTS or the embryo calf hepatocyte LMW NTS was remarkably prolonged.Conclusion:The LMW NTS of embryo calf hepatocyte is similar to that of human fetal hepatocyte,and it possesses marked anti tumor activity both in vitro and in vivo.
出处
《肿瘤研究与临床》
CAS
2001年第6期369-370,共2页
Cancer Research and Clinic
基金
广西自然科学基金资助项目 (963 5 0 90 )
