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反义血管内皮生长因子(VEGF)转染体内抑制胆囊癌VEGF及其受体表达的研究.doc

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反义血管内皮生长因子(VEGF)转染体内抑制胆囊癌VEGF及其受体表达的研究   作者:李海军, 庞作良, 毛拉艾沙·买买提, 孙晓宏, 王晓文 作者单位:新疆医科大学附属肿瘤医院肝胆胰外科, 新疆乌鲁木齐830011   【摘要】 目的: 探讨Oligofectamine介导的血管内皮生长因子(VEGF) 反义寡核苷酸(ASODN)转染对人胆囊癌GBCSD细胞裸鼠移植瘤的生长及VEGF、Flt1和KDR表达的影响。方法:通过裸鼠皮下接种体外培养的人胆囊癌GBCSD细胞建立人胆囊癌裸鼠移植瘤模型,并将裸鼠分为对照组(A组)、VEGF SODN+Oligifectamine组(B组)和VEGF ASODN+Oligifectamine组(C组),各组裸鼠在接种后24 h内,在接种部位皮下分别缓慢注射200 Μl磷酸缓冲液(PBS)、VEGF SODN 100 Μg+Oligofectamine 0.5 Μl (总体积为200 Μl)及VEGF ASODN 100 Μg+Oligofectamine 0.5 Μl(总体积为200 Μl),每3天 1次,连续治疗5周,观察各组裸鼠的成瘤性、体积及瘤重的变化,并运用免疫组化技术检测胆囊癌裸鼠移植瘤中VEGF、Flt1和KDR的表达变化。结果:A、B、C组裸鼠2周时的成瘤率分别为87.5%、87.5%和37.5%,C组显著低于A、B组(P0.05),5周时各组的成瘤率均为100%。各组裸鼠移植瘤5周时的体积和瘤重分别为:A组(253.49±27.11) mm3和(1.96±0.17) g,B组(255.84±26.51) mm3和(1.86±0.21) g,C组(125.45±17.49) mm3和(0.97±0.13) g,C组显著低于A、B组(P0.05),C组的抑瘤率为(50.79±9.19)%。A、B组裸鼠移植瘤VEGF、Flt1和KDR的表达均无统计学差异(P0.05), 而C组裸鼠移植瘤VEGF、Flt1和KDR的表达较A、B组明显减弱(P0.05)。结论: VEGF ASODN在体内能显著抑制人胆囊癌裸鼠移植瘤的增殖, 降低其在裸鼠体内的成瘤性,抑制VEGF、Flt1和KDR在蛋白水平的表达,抑制裸鼠移植瘤的生长及血管的形成。   【关键词】 血管内皮生长因子(VEGF); 反义寡核苷酸(ASODN); Flt1; KDR   The effect of of oligofectamine mediated VEGF ASODN transfection on the growth, VEGF, Flt1 and KDR protein expression of GBCSD cells transplant tumor of nude mice in vivo   LI Haijun, PANG Zuoliang, Maolaaisha·Maimaiti, et al   (Department of Hepatobiliopancreatic Surgery, Affilicated Tumor Hospital, Xinjiang Medical University, Urumqi 830011, China   Abstract: Objective: To investigate the effect of of oligofectamine mediated VEGF SODN transfection on the growth, VEGF, Flt1 and KDR protein expression of GBCSD cells transplant tumor of nude mice in vivo. Methods: GBCSD cells were injected subcutaneously into nude mice to establish successfully transplant tumor model of gallbladder carcinoma. All mice were divided randomly into A group (control), B group(VEGF SODN+Oligifectamine) and C group(VEGF ASODN+Oligifectamine). The mice of A, B and C group were injected 200 Μl PBS, VEGF SODN 100 Μg+Oligofectamine 0.5 Μl (volume 200 Μl) and VEGF A
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