壁虎多糖对鼠源肝癌H22体内外作用研究

[目的]研究壁虎多糖对培养的H22肝癌细胞体外抑制增殖作用,对荷H22实体型移植瘤小鼠的体内抑制作用,以期寻找有效的抗肿瘤活性成分.[方法]四甲基偶氮唑蓝(MTT)法检测低、中、高剂量组壁虎多糖对H22肝癌细胞体外杀伤作用.采用昆明小鼠H22移植瘤模型观察壁虎多糖高、低剂量组的体内抑瘤活性及荷瘤小鼠胸腺、脾脏指数变化.[结果]体外实验显示:壁虎多糖不同剂量组均可抑制H22细胞的增殖(P<0.05),其抑制率最高为79.1%,远远高于西药48.7%的抑瘤率.然而体内实验中,壁虎多糖各组均无明显抗肿瘤作用.高剂量组的抑瘤率仅为8.8%,各组与模型组比较均无统计学差异(P>0.05).壁虎多糖高低剂量组与模型组小鼠的胸腺质量、胸腺指数,脾脏重、脾脏指数相比均没有明显差异.而5-氟尿嘧啶(5-Fu)组胸腺质量、胸腺指数,脾脏质量、脾脏指数较模型组和各壁虎组均明显降低(P<0.05).[结论]体外实验显示壁虎多糖具有良好抑制H22细胞的增殖作用.然而体内实验中,壁虎多糖与模型组比较无统计学差异,壁虎多糖是否是抗肝癌有效成分有待进一步研究.

In vivo and in vitro research on anti-tumor effects of Gekko Polysaccharide on murine H22 hepatoma

[Objective] To investigate the in vitro inhibitory effect of Gekko polysaccharide on the proliferation of cultured H22 cell of liver cancer in mice. [Methods] MTT assay was applied to evaluate the killing effect of Gekko polysaccharide on cultured H22 hepatoma cells in vitro. The anti-tumor effect of Gekko polysaccharide was observed in H22 tumor bearing mice. [Results] The results showed each dose of Gekko polysaccharide group had effective anti -proliferation effect on the H22 cells in vitro. The highest ...