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Ciglitazone对裸鼠肝癌移植瘤的血管生成的抑制作用 被引量:1

Inhibitory effect of ciglitazone on tumor angiogenesis in nude mice transplants of hepatic carcinoma
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摘要 目的观察过氧化物酶体增殖激活受体配体Ciglitazone在肝癌治疗中对血管生成的作用。方法3周龄裸鼠随机分为实验组(10只)、对照组(10只)。皮下接种HepG2肝癌细胞,待肿瘤生长至约0.5cm时,实验组瘤内注射100μmol/L的Ciglitazone 100μl,对照组注射100μl生理盐水,隔天注射连续15次。逆转录-聚合酶链反应(RT-PCR)检测第31天的肝癌组织标本内PPAR的表达,免疫组织化学法和蛋白质定量分析法(Western blot)测定癌组织中因子Ⅷ和VEGF的表达。结果肝癌组织内存在PPAR的表达,实验组PPARγ表达增高[(1.26±0.29)比(0.32±0.11),P〈0.05],实验组的瘤块体积小、生长慢于对照组[(207.5±192.9)mm^3比(445.0±150.9)mm^3;P〈0.05],实验组裸鼠体内肿瘤MVD低于对照组[(11.0±7.6)比(18.9±7.0),P〈0.05];实验组裸鼠体内肿瘤VEGF的表达低于对照组(17.2±3.7比47.9±11.3,P〈0.01)。结论Ciglitazone对肝癌的生长具有抑制作用,抗肿瘤血管形成可能是其中的作用机制之一。 Objective To investigate the effect of ligand of peroxisome proliferator-activated receptor gamma (PPAR) on tumor angiogenesis in nude mice transplants of hepatic carcinoma. Methods RT-PCR was use to detect the PPAR mRNA expression in hepatic carcinoma tissuse, and the expression of Ⅷ factor and VEGF in the ciglitazone-treated nude mice transplants of hepatic carcinoma was assayed by using SP method and Western blot. Results PPAR mRNA was detected in tumor, and in ciglitazone-treated group,tumor grew slowly [ (207.5±192.9) mm^3 ,P 〈0.05 ]. The MVD and VEGF expression in ciglitazone-treated group were lower than in control group (P 〈 0.05 and P 〈 0.01, respectively). Conclusion CigIitazone can inhibit the growth of hepatic carcinoma by suppressing the angiogenesis.
出处 《中华实验外科杂志》 CAS CSCD 北大核心 2008年第8期1006-1008,共3页 Chinese Journal of Experimental Surgery
关键词 过氧化物酶增殖激活受体 肝细胞 血管生成 Peroxisome proliferator activated receptor Carcinoma,hepatocellular Angiogenesis
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