BALB/c裸小鼠人宫颈癌模型的建立

目的采用在裸鼠腹部皮下移植人原代宫颈癌组织的方法,研究其在裸鼠体内的成瘤性,并初步探讨此动物模型腹部肿瘤的生物学特性。方法将人宫颈癌组织接种于裸鼠腹部皮下建立人宫颈癌裸鼠模型,观察荷瘤鼠成瘤、一般特性和移植瘤生长情况。80d后处死裸鼠,取肿瘤块做病理切片;用聚合酶链式反应(polymerase chain reaction,PCR)检测肿瘤组织、外周血和肝、脾等脏器HPV DNA表达情况。结果接种后第42天在接种部位可见结节,第80天后肿瘤块平均表面积为(50.0±5.1)mm2,肿瘤移植平均成功率为90.5%。移植瘤生长以局部浸润为主,未见转移瘤。组织学检查结果示所有移植瘤与种植前肿瘤组织病理检查结果一致,HPV DNA呈阳性,且为高危型人乳头瘤病毒HPV16型阳性。而外周血与肝、脾等脏器HPV DNA呈阴性。结论本研究所建立裸鼠人宫颈癌组织模型成瘤率较高,操作简便,可保持人宫颈癌生物学特性,为进一步研究宫颈癌的发病机制提供了重要的科研工具。

Establishment of Animal Model of Human Cervical Cancer in BALB/c Nude Mice by Tumor Tissue Xenograft

Objective To establish the human cervical cancer animal model through abdominal subcutaneous transplantation in BALB/c nude mice and investigate the rate of tumor-forming and the biological features of the tumor.Methods Human cervical cancer tissue derived from surgical specimens were transplanted into the subcutis of nude mice.The rate of tumor transplantation,generic characteristic,tumor growth of bearing cancer mice were observed every day.On day 85 the tumor-bearing mice were killed and tumor masses wer...