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机构地区:[1]新疆医学院预防医学系
出 处:《营养学报》1998年第1期37-42,共6页Acta Nutrimenta Sinica
基 金:研究生经费
摘 要:方法:采用细胞株体外培养技术,研究β-胡萝卜素和亚硒酸钠(Na2SeO3)单独/联合对人肝癌细胞株(Q3)和人膀胱癌细胞株(T24)生长的影响。以小鼠成纤维母细胞(3T3)为正常对照细胞株。实验分为:1.β-胡萝卜素组:剂量为3、30、100μmol/L,溶剂对照为DMSO;2.亚硒酸钠组:剂量为0.15、1.5、5.0μmol/L,溶剂对照为生理盐水;3.β-胡萝卜素和亚硒酸钠联合组:剂量为1.5+0.15、15+1.5、50+5.0μmol/L,溶剂对照为DMSO和生理盐水。各实验组均设空白组。分别在实验后24h、48h、72h观察细胞成活率和活细胞蛋白质含量的变化。结果:1.β-胡萝卜素各剂量组对两株肿瘤细胞生长均有明显的抑制作用;2.亚硒酸钠对两株肿瘤细胞的抑制作用较弱,但随作用时间延长和剂量的增加其抑制作用明显增强;3.β-胡萝卜素和亚硒酸钠对Q3细胞株的抑制作用比T24细胞株强;4.β-胡萝卜素和亚硒酸钠联合对Q3和T24细胞的抑制作用结果提示两者有相加效应。The effects of βcarotene and/or inorganic selenium(Na2SeO3)on human hepatic carcinoma cell line (Q3)and human bladder carcinoma cell line(T24)were studied with technique of cell culture.Fibroblast cell line of mouse served as normal control cell line.There were three parts in the test:1,Studying the effect of βcarotene with dose of 3,30,100 μ mol/L,dissolvent control being DMSO;2.Investigating the effect of sodium selenite (Na2SeO3)with dose of 0.3,3.0,10 μ mol/L,dissolvent control being saline;3.Examining the effect of the combination of βcarotene and sodium selenite,their concentrations being 1.5+0.15,15+15,50+5μ mol/L, dissolvent control being DMSO and saline.A blank control was arranged in each group.The survival rate and the protein content of the cultured cells were observed at 24h,48h and 72h.The results showed that:1.There was a significant growth inhibition on both of the two carcinoma cell lines by each dose group of βcarotene;2.The growth inhibition on cultured cells by inorganic selenium was weaker,but the inhibitory effect was significant by increasing dose and prolonging the cultured time.The growth inhibitory effect of βcarotene and sodium selenite was stronger on (Q3) line than (T24) line.The inhibitroy effects of the combination of βcarotene and sodium selenite on Q3 and T24 carcinoma cell lines indicated that there was additive effect between them.
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