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作 者:曾纪晓[1] 马毅[2] 孙俊杰[2] 何晓顺[2] 夏慧敏[1]
机构地区:[1]广州市儿童医院普通外科,510120 [2]中山大学附属第一医院移植科
出 处:《中华实验外科杂志》2009年第5期592-594,共3页Chinese Journal of Experimental Surgery
基 金:广州市卫生局基金资助项目(416-4320824)
摘 要:目的探讨二烯丙基三硫化物(DATS)对肝移植术后大鼠肝癌皮下移植瘤生长的影响及其机制。方法建立大鼠肝移植术后肝癌皮下移植瘤模型24只,随机分为对照组、DATSⅠ组(每日1mg/kg)、DATSⅡ组(每日5mg/kg)。用药2周后观察肿瘤体积和重量,生化法测定大鼠血清肝肾功能,荧光定量聚合酶链反应(PCR)法检测肿瘤的血管内皮生长因子(VEGF)、基质金属蛋白酶(MMP)-2mRNA的表达,肿瘤组织切片行透射电镜检查。结果与对照组比较,DATS能抑制肿瘤生长,对照组、DATSⅠ组和DATSⅡ组皮下移植瘤体积分别为(0.78±0.25)、(0.42±0.17)、(0.38±0.21)cm。(P〈0.01);DATS抑制肝癌细胞VEGFmRNA、MMP-2mRNA的转录(P〈0.01),DATS对肝移植术后大鼠肝、肾功能无明显毒性作用(P〉0.05);透射电镜下可见DATS组肿瘤组织内有较多细胞凋亡现象。结论DATS可以抑制肝癌细胞VEGFmRNA和MMP-2mRNA的转录,诱导肿瘤细胞凋亡,抑制肝移植术后皮下移植瘤的生长。Objective To study the effect of diallyl trisulfide (DATS) on the growth of hepatocellular carcinoma (HCC) after orthotopic liver transplantation (OLTx) in rats. Methods Twenty-four rats bearing subcutaneous xenograft HCC after OLTx were randomly divided into 3 groups: the control group,the DATS group Ⅰ (DATS 1 mg/kg every day) and DATS group Ⅱ (DATS 5 mg/kg every day). The effects of DATS on the growth of the tumor were evaluated after 2 weeks,including the tumor size and weight. Fluorescent quantitation ploymerase chain reaction was used to detect the expression of vascular endothelial growth factor (VEGF) mRNA and matrix metalloproteinase 2 (MMP-2) mRNA. The effects of DATS on the liver and kidney in rats were assayed by biochemical methods. Results DATS inhibited the growth of HCC in rats after OLTx. Tumor size : the control group ( 0.78 ± 0.25 ) cm^3, DATS group Ⅰ (0.42 ± 0.17) cm^3,and DATS groupⅡ (0.38 ± 0.21 ) cm^3 ( P 〈 0.01 ). The expression of VEGF mRNA and MMP-2 mRNA was downregulated significantly by DATS ( P 〈 0.01 ). DATS had no side effects on the liver and kidney in rats ( P 〉 0.05 ). Conclusion DATS can inhibit the growth of HCC in rats after OLTx without side effects in vivo by suppressing the expression of VEGF mRNA and MMP-2 mRNA in HCC.
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