破血逐瘀中药虻虫对荷H22肝癌小鼠内皮生长因子及MMP-9蛋白表达的影响

【目的】观察破血逐瘀中药虻虫对荷H22小鼠肝癌组织血管内皮生长因子(VEGF)、基质金属蛋白酶-9(MMP-9)蛋白表达的影响。【方法】选用雄性昆明种(KM)小鼠50只随机分为模型组,化疗组,虻虫高、中、低剂量组。腋下注射H22细胞建立荷H22肝癌小鼠模型。虻虫治疗组以0.045、0.09、0.18 g·kg-1·d-1剂量灌胃给药,化疗组以5-氟尿嘧啶(5-FU)25 mg·kg-1·d-1剂量腹腔注射给药,隔日1次;模型组予以等容积生理盐水灌胃给药,2周后处死小鼠,称体质量及瘤体质量,采用苏木精—伊红(HE)染色观察肝癌组织形态变化,免疫组织化学法检测VEGF及MMP-9蛋白的表达。【结果】高、中剂量虻虫组均可使肝癌组织呈大片坏死;虻虫高、中剂量组及化疗组瘤体质量、瘤指数显著减小,虻虫高剂量组VEGF及MMP-9蛋白表达显著减小,与模型组比较,差异均有统计学意义(P<0.01)。【结论】破血逐瘀中药虻虫能显著抑制荷H22小鼠肝癌细胞增殖,其机理可能与减少VEGF、MMP-9蛋白表达有关。

鸦胆子油乳治疗H22肝癌荷瘤小鼠的时辰药理学研究

【目的】研究鸦胆子油乳治疗H22肝癌荷瘤小鼠的时辰药理学的规律。【方法】制备H22肝癌荷瘤小鼠模型;造模成功的小鼠分组后,分别在正常光节律及异常光节律条件下进行治疗。治疗结束后计算肿瘤抑制率及脏器指数,测定肝、肾功能指标。【结果】在正常光节律和异常光节律下,各治疗组均能减小瘤体质量,降低瘤重指数,其中,正常光节律下的暗期前期给药组,异常光节律下的暗期前期给药组、暗期中期给药组,分别与相应的模型组比较,差异均有统计学意义(P<0.05)。正常光节律下,暗期前期(10 pm)给药组的肝脏指数显著下降、胸腺指数显著上升,与模型组比较差异有统计学意义(P<0.05);异常光节律下,暗期前期(7 am)给药组的脾脏指数较模型组显著上升,差异有统计学意义(P<0.05)。【结论】鸦胆子油乳注射液在正常光节律和异常光节律下均有一定抑制肿瘤的作用,药物在暗相期给药治疗效果更佳。

Preliminary Investigation on Regulating Effects of Different TCM Treatments on Transcription of the Correlated Genes of Liver Cancer in Rats

The regulating effects of TCM treatments including clearing away heat and toxic materials,promoting blood circulation and removing blood stasis,and strengthening the spleen and regulating qi on the oncogene transcription were observed in the liver cancer model rats.The preliminary results indicated that the mRNA levels of H-ras N-ras and K-ras,and signal molecules correlated with the ras/MAPK signal transduction pathway were down-regulated by the different TCM treatments in varying degrees.Also,the regulating effects of the treatments on differently-displayed genes were discrepant.It is suggested that the molecular mechanisms of the TCM treatments for liver cancer was complex with different target genes.