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The Study and Expression of Vascular Endothelial Growth Factor Receptors in Human Brain Gliomas
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- Author:
- No author available
- Journal Title:
- JOURNAL OF MODERN CLINICAL MEDICAL BIOENGINEERING
- Issue:
- 4
- DOI:
- 10.3760/cma.j.issn.1674-1927.2003.04.005
- Key Word:
- 脑胶质细胞瘤;fms样酪氨酸激酶-1;胎肝激酶-1;免疫组织化学
Abstract： 目的研究人脑胶质瘤血管内皮细胞生长因子受体(Vascular endot helial growth factor receptors, VEGFR)的表达及意义.方法应用免疫组织化学技术,检测52例手术切除的脑胶质细胞瘤组织中两种VEGFR(flt-1和fl k-1)的表达.结果①胶质细胞瘤组织中有flt-1和flk-1的表达 , 主要表达于肿瘤血管内皮细胞, 同时巨噬细胞的胞浆中也有表达;② 3组胶质细胞瘤中,VEGFR的表达率分别为16.0%、58.8%、90.0%,3组间有差异(p<0.05 );③脑胶质细胞瘤中, flt-1的表达与flk-1 的表达相关(R=0.993,p<0.01).结论正常脑组织中无VEGFR表达,脑胶质细胞瘤中有VEGFR表达,主要表达于血管内皮细胞中,VEGF通过旁分泌途径刺激脑胶质细胞瘤的血管发生; VEGF的促血管发生作用既可通过血管内皮细胞的VEGFR直接产生,又可通过促进巨噬细胞的局灶浸润间接产生;VEGFR表达与脑胶质瘤恶性程度呈正相关.
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