内皮抑素在兔VX2肝移植瘤介入治疗中的应用价值

目的 探讨内皮抑素在兔VX2肝移植瘤介入治疗中的应用价值.方法 建立兔肝移植瘤模型,随机分为对照组(NS,10只),TACE组(Lipiodol+ADM,10只)和内皮抑素组(Lipiodol+ADM+ES,10只),多排螺旋CT测量肿瘤大小,计算肿瘤增长率(GR);术后1周取出病理标本,利用免疫组化染色及半定量RT-PCR法分别检测残瘤组织微血管密度(MVD)和血管内皮生长因子(VEGF)表达.结果 3组肿瘤增长率分别为对照组(270.86±148.94)%,TACE组(-8.91±21.77)%,内皮抑素组(-20.40±36.07)%,3组间相互比较,对照组呈明显正增长,与其余2组比较差异均有统计学意义(P＜0.01),而TACE组与内皮抑素组之间差异无统计学意义(P＞0.05);各组的MVD值分别为80.00±17.14(对照组)、84.22±16.45(TACE组)和57.00±13.26(内皮抑素组),内皮抑素组MVD值最低,与另外2组比较差异均有统计学意义(P＜0.05),对照组和TACE组之间差异性不明显(P＞0.05);VEGF165 mRNA:对照组为(0.85±0.056),TACE组为(1.10±0.087),内皮抑素组为(0.72±0.065),TACE组表达水平最高,与其余2组比较差异有统计学意义(P＜0.01).结论 兔VX2肝移植瘤的介入治疗中应用内皮抑素后,肿瘤明显缩小,肿瘤组织VEGF的表达减低,MVD的分布减少,提高了肿瘤的治疗效果.

Application of endostatin in interventional treatment for hepatic tumor: an experimental study in rabbits with VX2 hepatic implantation tumor

Objective To investigate the clinical application of angiogenesis inhibitor, endostatin, in interventional treatment for hepatic tumor by means of experimental study in rabbits with VX2 hepatic implantation tumor. Methods According to the method introduced in academic documents, the animal model of VX2 hepatic implantation tumor was established in 30 rabbits. The rabbits were equally and randomly divided into three groups, with 10 rabbits in each group. Group A, regarded as control group, was treated with n...