title: Association between genetic polymorphism of tumor necrosis factor-alpha and risk of oral submucous fibrosis, a pre-cancerous condition of oral cancer.
abstract: Many cytokines have been thought to play important roles in the pathogenesis of oral submucous fibrosis (OSF), an areca nut chewing-specific pre-cancerous condition characterized by the deposition of collagen in oral submucosa. Tumor necrosis factor-alpha (TNF-alpha), situated in the class III region of human leukocyte antigen (HLA), is a mediator with multiple functions, including the regulation of inflammatory reaction and transcriptions of collagen and collagenase. In total, 809 male subjects were recruited for assessment of the association of OSF with a bi-allelic promoter-region (-308) polymorphism on the TNFA gene. The high production allele, TNF2, was significantly lower among OSF subjects (n = 166) than in areca-chewing controls (n = 284). This association was independent of oral cancer status. The multivariate-adjusted odds ratio for the TNFA 11 genotype was 2.6 (95% confidence interval = 1.4-4.9; p = 0.004). The finding may imply a multifunctional etiological factor of TNF-alpha in OSF pathogenesis.
authors.affiliation: Graduate Institute of Epidemiology, College of Public Health, National Taiwan University,Taipei.
authors.forename: C J
authors.initials: CJ
authors.lastname: Chiu
authors.forename: C P
authors.initials: CP
authors.lastname: Chiang
authors.forename: M L
authors.initials: ML
authors.lastname: Chang
authors.forename: H M
authors.initials: HM
authors.lastname: Chen
authors.forename: L J
authors.initials: LJ
authors.lastname: Hahn
authors.forename: L L
authors.initials: LL
authors.lastname: Hsieh
authors.forename: Y S
authors.initials: YS
authors.lastname: Kuo
authors.forename: C J
authors.initials: CJ
authors.lastname: Chen
mesh_terms: D000328:Adult; D000367:Age Factors; D001114:Areca / Q000009:adverse effects; D016022:Case-Control Studies; D005006:Ethnicity; D005838:Genotype; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000235:genetics*; D016017:Odds Ratio; D009914:Oral Submucous Fibrosis / Q000209:etiology / Q000235:genetics*; D012150:Polymorphism, Restriction Fragment Length; D011230:Precancerous Conditions / Q000235:genetics*; D012307:Risk Factors; D011795:Surveys and Questionnaires; D013624:Taiwan; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics*
chemical_list: D014409:Tumor Necrosis Factor-alpha