title: Neoangiogenesis in colon cancer: correlation between vascular density, vascular endothelial growth factor (VEGF) and p53 protein expression.
abstract: Angiogenesis is an essential requirement for the development, progression and metastasis of malignant tumors. Vascular endothelial growth factor (VEGF) plays an essential role in the development of angiogenesis of numerous solid malignancies, including colon cancer. The tumor suppressor gene p53 is a potent transcriptional regulator of genes which are involved in many cellular activities, including cell-cycle arrest, apoptosis and angiogenesis. In order to better understand the relation among p53 status, VEGF expression and microvessels count (MVC) in colon cancer, we evaluated immunoreactivity for CD34 endothelium-associated antigen, VEGF and p53 proteins in 43 cases of colon adenocarcinoma. Our results demonstrated an association between VEGF expression, p53 status and angiogenesis, suggesting that mutant p53 plays a central role in promoting angiogenesis in colon cancer progression.
authors.affiliation: Department of Surgery, University of Pisa, 56100 Pisa, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Faviana
authors.forename: L
authors.initials: L
authors.lastname: Boldrini
authors.forename: R
authors.initials: R
authors.lastname: Spisni
authors.forename: P
authors.initials: P
authors.lastname: Berti
authors.forename: D
authors.initials: D
authors.lastname: Galleri
authors.forename: R
authors.initials: R
authors.lastname: Biondi
authors.forename: T
authors.initials: T
authors.lastname: Camacci
authors.forename: G
authors.initials: G
authors.lastname: Materazzi
authors.forename: R
authors.initials: R
authors.lastname: Pingitore
authors.forename: P
authors.initials: P
authors.lastname: Miccoli
authors.forename: G
authors.initials: G
authors.lastname: Fontanini
mesh_terms: D000368:Aged; D018952:Antigens, CD34 / Q000096:biosynthesis; D003110:Colonic Neoplasms / Q000098:blood supply* / Q000378:metabolism; D018450:Disease Progression; D016228:Endothelial Growth Factors / Q000096:biosynthesis*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008222:Lymphokines / Q000096:biosynthesis*; D008297:Male; D008875:Middle Aged; D009154:Mutation; D009389:Neovascularization, Pathologic; D016159:Tumor Suppressor Protein p53 / Q000096:biosynthesis*; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors
chemical_list: D018952:Antigens, CD34; D016228:Endothelial Growth Factors; D008222:Lymphokines; D016159:Tumor Suppressor Protein p53; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors