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GBCSD细胞裸鼠移植瘤的生长及VEGF、Flt1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GBCSD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、Flt1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、Flt1和KDR的表达均无统计学差异(P0.05), 而C组裸鼠移植瘤VEGF、Flt1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、Flt1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); Flt1; KDR
The effect of of oligofectamine mediated VEGF ASODN transfection on the growth, VEGF, Flt1 and KDR protein expression of GBCSD cells transplant tumor of nude mice in vivo
LI Haijun, PANG Zuoliang, 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, Flt1 and KDR protein expression of GBCSD cells transplant tumor of nude mice in vivo. Methods: GBCSD 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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