Hepatocellular carcinoma （HCC） is one of the most deadly human cancers, but it is very difficult to establish an animal model by using surgical specimens. In the present experiment, histologically intact fresh surgi...Hepatocellular carcinoma （HCC） is one of the most deadly human cancers, but it is very difficult to establish an animal model by using surgical specimens. In the present experiment, histologically intact fresh surgical specimens of HCC were subcutaneously transplanted in non-obese diabetic/severe combined immunodeficienccy （NOD/SCID） mice. The biological characteristics of the original and the corresponding transplanted tumors and cell lines were investigated. The results showed that 5 new animal models and 2 primary cell lines were successfully established f^om surgical specimens. Hematoxylin-eosin staining showed that xenografts retained major histological features of the original surgical specimens. The two new cell lines had been cultivated for 3 years and successively passaged for more than 100 passages in vitro. The morphological characteristics and biologic features of the two cell lines were genetically similar to the original tumor. The subcutaneous transplant animal models with histologically intact tumor tissue and primary cell lines could be useful for in vivo and in vitro testing of anti-cancer drugs and be ideal models to study various biologic features of HCC.展开更多
目的观察莪术醇联合氟尿嘧啶对胃癌裸鼠皮下移植瘤的影响。方法将人胃癌细胞株BGC823接种于裸鼠皮下建立荷瘤裸鼠模型。将荷瘤裸鼠随机分为对照组、莪术醇组、氟尿嘧啶组、联合用药组(莪术醇联合氟尿嘧啶),记录各组的肿瘤体积和瘤重。...目的观察莪术醇联合氟尿嘧啶对胃癌裸鼠皮下移植瘤的影响。方法将人胃癌细胞株BGC823接种于裸鼠皮下建立荷瘤裸鼠模型。将荷瘤裸鼠随机分为对照组、莪术醇组、氟尿嘧啶组、联合用药组(莪术醇联合氟尿嘧啶),记录各组的肿瘤体积和瘤重。应用荧光定量聚合酶链反应(q PCR)和免疫组织化学法检测各组肿瘤组织中增殖细胞核抗原(PCNA)、P27的表达。结果对照组肿瘤体积和重量比其他3组升高(P<0.05);联合用药组肿瘤体积和重量低于莪术醇组(P<0.05);联合用药组肿瘤体积和重量与氟尿嘧啶组比较,差异无统计学意义(P>0.05)。各实验组肿瘤组织中PCNA的表达均低于对照组(P<0.05);与莪术醇组和氟尿嘧啶组比较,联合用药组PCNA的表达降低(P<0.05)。各实验组移植瘤组织中P27的表达均高于对照组(P<0.05);与莪术醇组比较,联合用药组P27的表达增强(P<0.05);与氟尿嘧啶组比较,联合用药组P27 m RNA的相对表达有升高趋势,但差异无统计学意义(P>0.05)。与莪术醇组和氟尿嘧啶组比较,联合用药组P27蛋白阳性率升高(P<0.05)。结论莪术醇联合氟尿嘧啶能抑制胃癌裸鼠皮下移植瘤的生长,其机制可能与调节PCNA、P27基因有关。展开更多
基金supported by grants from the National Key Sci-Tech Special Project of China (2008ZX10002-022)Leading Academic Discipline Project of Shanghai Municipal Education Committee (J50208)
文摘Hepatocellular carcinoma （HCC） is one of the most deadly human cancers, but it is very difficult to establish an animal model by using surgical specimens. In the present experiment, histologically intact fresh surgical specimens of HCC were subcutaneously transplanted in non-obese diabetic/severe combined immunodeficienccy （NOD/SCID） mice. The biological characteristics of the original and the corresponding transplanted tumors and cell lines were investigated. The results showed that 5 new animal models and 2 primary cell lines were successfully established f^om surgical specimens. Hematoxylin-eosin staining showed that xenografts retained major histological features of the original surgical specimens. The two new cell lines had been cultivated for 3 years and successively passaged for more than 100 passages in vitro. The morphological characteristics and biologic features of the two cell lines were genetically similar to the original tumor. The subcutaneous transplant animal models with histologically intact tumor tissue and primary cell lines could be useful for in vivo and in vitro testing of anti-cancer drugs and be ideal models to study various biologic features of HCC.
文摘目的观察莪术醇联合氟尿嘧啶对胃癌裸鼠皮下移植瘤的影响。方法将人胃癌细胞株BGC823接种于裸鼠皮下建立荷瘤裸鼠模型。将荷瘤裸鼠随机分为对照组、莪术醇组、氟尿嘧啶组、联合用药组(莪术醇联合氟尿嘧啶),记录各组的肿瘤体积和瘤重。应用荧光定量聚合酶链反应(q PCR)和免疫组织化学法检测各组肿瘤组织中增殖细胞核抗原(PCNA)、P27的表达。结果对照组肿瘤体积和重量比其他3组升高(P<0.05);联合用药组肿瘤体积和重量低于莪术醇组(P<0.05);联合用药组肿瘤体积和重量与氟尿嘧啶组比较,差异无统计学意义(P>0.05)。各实验组肿瘤组织中PCNA的表达均低于对照组(P<0.05);与莪术醇组和氟尿嘧啶组比较,联合用药组PCNA的表达降低(P<0.05)。各实验组移植瘤组织中P27的表达均高于对照组(P<0.05);与莪术醇组比较,联合用药组P27的表达增强(P<0.05);与氟尿嘧啶组比较,联合用药组P27 m RNA的相对表达有升高趋势,但差异无统计学意义(P>0.05)。与莪术醇组和氟尿嘧啶组比较,联合用药组P27蛋白阳性率升高(P<0.05)。结论莪术醇联合氟尿嘧啶能抑制胃癌裸鼠皮下移植瘤的生长,其机制可能与调节PCNA、P27基因有关。
