title: Role of TGFB1 polymorphism in the development of metastatic brain tumors in non-small cell lung cancer patients.
abstract: We conducted a case-control study to investigate the role of 3 single-nucleotide polymorphisms of the gene encoding transforming growth factor-b1 (TGFB1) in the development of metastatic brain tumors in non-small cell lung cancer patients. The polymorphisms in TGFB1 rs4803455, rs1800469, and rs1800470 were evaluated by polymerase chain reaction-restriction fragment length polymorphism. Odds ratios and their corresponding 95% confidence intervals were used to assess the influence of TGFB1 rs4803455, rs1800469, and rs1800470 on metastatic brain tumors. We found that cases were more likely to have a later disease stage when compared with control subjects, without brain metastasis. Individuals carrying the TGFB1 rs1800469 TT and CT+TT genotypes had an increased risk of developing brain metastasis compared with the rs1800469 CC genotype. Moreover, a significant interaction was observed between the rs1800469 polymorphism and disease stage. However, no significant association between polymorphisms rs4803455 and rs1800470 and the risk of developing brain metastasis were observed. We found that the TGFB1 rs1800469 polymorphism may be predictive biomarker for the risk of developing brain metastasis in non-small cell lung cancer patients.
authors.affiliation: Department of Radiotherapy and Chemotherapy Tangshan Gongren Hospital, Tangshan, China haibowang1980@yeah.net.
authors.forename: H B
authors.initials: HB
authors.lastname: Wang
authors.affiliation: Department of Radiotherapy and Chemotherapy Tangshan Gongren Hospital, Tangshan, China.
authors.forename: W G
authors.initials: WG
authors.lastname: Song
authors.affiliation: Department of Radiotherapy and Chemotherapy Tangshan Gongren Hospital, Tangshan, China.
authors.forename: H Q
authors.initials: HQ
authors.lastname: Liu
authors.affiliation: Department of Radiotherapy and Chemotherapy Tangshan Gongren Hospital, Tangshan, China.
authors.forename: F
authors.initials: F
authors.lastname: Fang
authors.affiliation: Department of Radiotherapy and Chemotherapy Tangshan Gongren Hospital, Tangshan, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Xiao
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000235:genetics; D001932:Brain Neoplasms / Q000235:genetics* / Q000556:secondary; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics* / Q000473:pathology; D016022:Case-Control Studies; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics*; D005838:Genotype; D006801:Humans; D008175:Lung Neoplasms / Q000235:genetics* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors; D053773:Transforming Growth Factor beta1 / Q000235:genetics*
chemical_list: D014408:Biomarkers, Tumor; D053773:Transforming Growth Factor beta1