title: Clinical prognostic values of vascular endothelial growth factor, microvessel density,and p53 expression in esophageal carcinomas.
abstract: Vascular endothelial growth factor (VEGF) is known to play a key role in tumor angiogenesis. The tumor-suppressor gene p53 has been thought to regulate VEGF. We investigated the effect of VEGF on esophageal carcinoma and the correlation between VEGF and p53. Tissue samples were taken from 81 patients with esophageal carcinoma after surgery. VEGF and p53 expressions were examined by immunohistochemical staining. Microvessels in the tumor stained for CD34 antigen were also counted. VEGF and p53 expressions were observed in 51.3% (41/80) and 51.9% (41/79), respectively. The microvessel density was 70.9+/-6.7 (mean+/-SE) in VEGF-positive group and 68.7+/-5.1 in VEGF-negative group. However, no correlation was noted between VEGF and p53 expression. Whereas the tumor size, nodal status, depth of invasions, and tumor stage were associated with poor overall survival, VEGF expression or p53 expression was not. These results indicate that VEGF and p53 are highly expressed in esophageal carcinomas. Since the VEGF expression is not correlated with the p53 expression, microvessel density or clinicopathological findings, further studies with other angiogenic molecules are needed to determine the role in esophageal carcinomas.
authors.affiliation: Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, Korea. parkcg@hanyang.ac.kr
authors.forename: Myung-Ju
authors.initials: MJ
authors.lastname: Ahn
authors.forename: Se-Jin
authors.initials: SJ
authors.lastname: Jang
authors.forename: Yong-Wook
authors.initials: YW
authors.lastname: Park
authors.forename: Jung-Hye
authors.initials: JH
authors.lastname: Choi
authors.forename: Ho-Suk
authors.initials: HS
authors.lastname: Oh
authors.forename: Chul-Burm
authors.initials: CB
authors.lastname: Lee
authors.forename: Hong-Kyu
authors.initials: HK
authors.lastname: Paik
authors.forename: Chan-Kum
authors.initials: CK
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D002196:Capillaries; D002294:Carcinoma, Squamous Cell / Q000145:classification / Q000378:metabolism* / Q000473:pathology; D016228:Endothelial Growth Factors / Q000096:biosynthesis*; D004938:Esophageal Neoplasms / Q000145:classification / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008222:Lymphokines / Q000096:biosynthesis*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009389:Neovascularization, Pathologic; D011379:Prognosis; D012189:Retrospective Studies; D016159:Tumor Suppressor Protein p53 / Q000096:biosynthesis*; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors
chemical_list: D016228:Endothelial Growth Factors; D008222:Lymphokines; D016159:Tumor Suppressor Protein p53; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors