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肿瘤内的血管形成受到多种生长因子的调节，血管内皮生长因子（ＶＥＧＦ）在肿瘤血管形成中发挥重要作用［１］。应用ＲＴ－ＰＣＲ方法从分子水平探讨胃癌ＶＥＧＦｍＲＮＡ的表达与肿瘤侵袭转移的关系。１ 材料与方法１．１ 材料标本：手术前内镜检查活检胃癌标本３５例，全
Intratumor angiogenesis is regulated by multiple growth factors, and vascular endothelial growth factor (VEGF) plays an important role in tumor angiogenesis [1]. The relationship between the expression of VEGFmRNA and the invasion and metastasis of gastric cancer was explored at the molecular level by RT-PCR. 1 Materials and methods 1.1 Material specimens: 35 patients with gastric cancer specimens before surgery by endoscopy biopsy