槲寄生碱抗肿瘤作用的研究

Studies on the anticancer effects of total alkaloid from Viscum coloratum

目的通过体内、体外实验研究槲寄生碱的抗肿瘤作用。方法体外实验采用MTT法测定槲寄生碱对食管癌细胞株(Eca109)生长的抑制作用。取对数生长期的肿瘤细胞培养24h后加入含不同浓度槲寄生碱培养液;作用24h后倾去上清液,加入MTT;4h后吸去上清液,加入二甲亚砜(DMSO);30min后测吸光度(A)并计算抑制率;体内实验将制备的肿瘤细胞悬液,以0.2mL/只的量接种于小鼠右前肢腋部皮下,24h后将已接种的小鼠随机分组。各组均连续给药7d,停药后1～3d将小鼠拉颈处死,剥取瘤块称重,计算抑瘤率。结果体外实验证实槲寄生碱对肿瘤细胞生长有显著的抑制作用;体内实验证实槲寄生碱可抑制肿瘤生长、延长荷瘤动物的生存期。结论槲寄生碱具有抗肿瘤作用。

Objective: To study the anticancer effects of total alkaloid from Viscum coloratum in vivo and vitro. Method: In vitro, MTT assays were used to measure the inhibitory effect. Cells at period of logarithmic growth were incubated for 24 hours. Then total alkaloid of various concentrations were added. 24 hours later, supernatant was removed and MTT was added. 4 hours after that, DMSO was added, then 30 minutes later, A value was measured. In vivo, suspension of carcinoma cells was implanted in the mice's limbs subcutaneously, 0.2 mL each. 24 hours later, the mice were grouped randomly. Fed by total alkaloid continuously for 7 days, the mice were sacrificed. The tumors were weighed and calculated the inhibitory rates. Result: In vitro, it shows that total alkaloid has prominent inhibitory effect on the growth of carcinoma cells. In vivo, it shows that total alkaloid can inhibit the growth of tumors and prolong the survival days of the mice bearing tumors. Conclusion: Total alkaloid from Viscum coloratum has the activities of anticancer. [