Cyclooxygenase-2 gene polymorphisms and susceptibility to colorectal cancer in a Brazilian population

Author(s)

Tatiana Pereira Tomitao, Michele ^{[1, 2]} ; Carlos Nahas, Sergio ^{[3, 1]} ; Saldanha Kubrusly, Marcia ^[4] ; Katsue Furuya, Tatiane ^{[2, 5]} ; Augusto Diniz, Marcio ^[6] ; Kazue Nagahashi Marie, Suely ^[7] ; Vaz Safatle-Ribeiro, Adriana ^{[3, 1]} ; Eluf-Neto, Jose ^[8] ; Cecconello, Ivan ^[1] ; Ribeiro, Jr., Ulysses ^{[3, 1]}

Affiliation

^[1] Univ Sao Paulo, Fac Med, Dept Gastroenterol, Sao Paulo, SP - Brazil

^[2] Inst Canc Estado Sao Paulo, Ctr Invest Translac Oncol, Sao Paulo, SP - Brazil

^[3] Inst Canc Estado Sao Paulo, Sao Paulo, SP - Brazil

^[4] Univ Sao Paulo, Fac Med, Div Transplante Orgaos Digest LIM 37, Sao Paulo, SP - Brazil

^[5] Univ Sao Paulo, Fac Med, Dept Radiol & Oncol LIM 24, Sao Paulo, SP - Brazil

^[6] Cedars Sinai Samuel Oschin Comprehens Canc Inst, Los Angeles, CA - USA

^[7] Univ Sao Paulo, Fac Med, Dept Neurol LIM 15, Sao Paulo, SP - Brazil

^[8] Univ Sao Paulo, Fac Med, Dept Med Prevent, Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF GASTROINTESTINAL ONCOLOGY; v. 8, n. 4, p. 629-635, AUG 2017.
• Web of Science Citations: 0

Abstract

Background: Multi-ethnicity of Brazilian population displays high levels of genomic diversity. Polymorphism may detect people at higher risk of developing cancer, distinctive response to treatment, and prognosis. Cyclooxygenase-2 (COX-2) is induced in response to growth factors and cytokines, and is expressed in inflammatory diseases, precancerous lesions and colorectal cancer (CRC). The aim of this study was to evaluate the influence of COX-2 -1195A > G and 8473T > C polymorphisms as a risk factor of developing CRC. Methods: We evaluated COX-2 Single Nucleotide Polymorphism (SNP) of 230 CRC patients and 196 healthy controls by Real-Time Polymerase Chain Reaction. Results: Populations were in Hardy-Weinberg equilibrium (HWE), except for control group of 8473T > C SNP. The frequencies were similar in both groups for genotypes and haplotypes. There was no association between studied polymorphisms and risk of CRC. Conclusions: The gene polymorphisms studied do not participate in the genetic susceptibility to CRC in a Brazilian population. (AU)

• FAPESP's process: 11/23181-5 - Analysis of the cyclooxygenase-2 (COX-2) and vascular endothelial growth factor (VEGF) gene polymorphisms in colorectal cancer
• Grantee: Ulysses Ribeiro Júnior
• Support Opportunities: Regular Research Grants