title: Association of vascular endothelial growth factor gene polymorphisms with susceptibility and clinicopathologic characteristics of colorectal cancer.
abstract: Since vascular endothelial growth factor (VEGF) is known to be a potent pro-angiogenic factor, we evaluated the potential association of two VEGF gene polymorphisms (-634G>C and 936C>T) with the susceptibility and the clinicopathologic characteristics of colorectal cancer (CRC). The VEGF genotypes were determined using fresh colorectal tissue from 465 patients who had undergone a surgical resection and peripheral blood lymphocytes from 413 healthy controls by PCR/DHPLC assay. For the -634G>C polymorphism, the -634 GC or CC genotype was associated with a decreased risk of CRC (odds ratio [OR], 0.62; p=0.001) as a dominant model of C allele, whereas the 936 TT genotype correlated with advanced stage/ metastasis, a high serum level of CA19-9, and an higher grade in patients with CRC. In the haplotype analyses, haplotype -634C/936C and -634G/936T were associated with a decreased susceptibility of CRC (OR, 0.53 and 0.56; p<0.001, respectively). These observations imply that the VEGF gene polymorphisms may be associated with the susceptibility or clinicopathologic features of CRC. However, further studies of other VEGF sequence variants and their biological functions are needed to understand the role of the VEGF gene polymorphisms in the development and progression of CRC.
authors.affiliation: Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
authors.forename: Yee Soo
authors.initials: YS
authors.lastname: Chae
authors.forename: Jong Gwang
authors.initials: JG
authors.lastname: Kim
authors.forename: Sang Kyun
authors.initials: SK
authors.lastname: Sohn
authors.forename: Yoon Young
authors.initials: YY
authors.lastname: Cho
authors.forename: Byung Min
authors.initials: BM
authors.lastname: Ahn
authors.forename: Joon Ho
authors.initials: JH
authors.lastname: Moon
authors.forename: Seoung Woo
authors.initials: SW
authors.lastname: Jeon
authors.forename: Jae Yong
authors.initials: JY
authors.lastname: Park
authors.forename: In Taek
authors.initials: IT
authors.lastname: Lee
authors.forename: Gyu Seog
authors.initials: GS
authors.lastname: Choi
authors.forename: Soo-Han
authors.initials: SH
authors.lastname: Jun
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000235:genetics* / Q000556:secondary; D005260:Female; D020022:Genetic Predisposition to Disease / Q000453:epidemiology; D006239:Haplotypes; D006801:Humans; D008297:Male; D008875:Middle Aged; D009389:Neovascularization, Pathologic / Q000453:epidemiology / Q000235:genetics / Q000473:pathology; D011110:Polymorphism, Genetic; D012307:Risk Factors; D042461:Vascular Endothelial Growth Factor A / Q000235:genetics*
chemical_list: C467484:VEGFA protein, human; D042461:Vascular Endothelial Growth Factor A