近交系小鼠移植性肝癌模型建立及对比分析
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Establishment and comparative analysis of liver transplantation model in inbred mice
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    摘要:

    目的 通过对比分析选择建立原位移植性肝癌模型的最佳小鼠品系。方法 选取C57、C3H和BALB/c各10只小鼠分别作为模型组Ⅰ、模型组Ⅱ和模型组Ⅲ,沿腹中线开腹后将H22细胞接种到各模型组小鼠肝脏实质内。于注射后第15天剖腹探查,观察各组成瘤率,测量腹水量和肿瘤体积,并进行肿瘤病理学分析。结果 三组小鼠存活率均为100%,15天后三组小鼠均产生腹水,但三组腹水量之间不具有统计学差异。模型组Ⅰ小鼠肝癌移植成功率为100%,高于模型组Ⅱ的60%和模型组Ⅲ的30%。模型组Ⅰ小鼠肝脏肿瘤全部为大块紧实灰白色病灶,其肿瘤平均体积显著大于模型组Ⅱ和模型组Ⅲ(P<0.05)。病理结果证实三组小鼠肝脏的灰白色病灶均为原位肝细胞癌。结论 C57小鼠是复制原位移植性肝癌模型较为理想的实验动物,为今后研究原位肝癌的发病机制提供良好的实验平台。

    Abstract:

    Objective To select a best mouse strain for establishing an animal model of orthotopic transplanted liver cancer through comparison analysis.Methods C57,C3H and BALB/c mice(each 10)were selected as model groupⅠ,Ⅱ and Ⅲ.H22 cells were inoculated into the liver parenchyma of mice in model group along the ventral midline laparotomy.Fifteenth days after injection of laparotomy,the rate of tumor was observed,the volume of ascites and gross tumor volume were measured,and tumor pathology was analyzed.Results The survival rate of mice in three groups was 100%.After 15 days,ascites in three groups were produced,but with no significant difference among the three groups of the volume of ascites.Tumor transplantation rate in model groupⅠ was 100%,which was higher than 60% in model group Ⅱ and 30% in model group Ⅲ.Liver tumors in model group Ⅰ were all large compact grayish white lesions,and the average tumor volume was significantly greater than that of model group Ⅱ and Ⅲ(P< 0.05). Pathology results confirmed that white lesions in liver of three groups were hepatocelluar carcinoma in situ.Conclusion C57 is the better ideal experimental animal for establishing orthotopic liver caner model,and these results will provide a good experimental platform for research in pathogenesis of hepatocellular carcinoma.

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李晓娟,汤紫荣,李蓓,李瑞生.近交系小鼠移植性肝癌模型建立及对比分析[J].中国比较医学杂志,2014,24(9):40~43.

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  • 最后修改日期:2014-08-25
  • 在线发布日期: 2014-10-10