title: The involvement of IL-10, IL-6, IFN-gamma, TNF-alpha and TGF-beta gene polymorphisms among Turkish lung cancer patients.
abstract: Several genes encoding different cytokines may play crucial roles in host susceptibility to lung cancer, since cytokine production capacity varies among individuals and depends on cytokine gene polymorphisms. The association between cytokine gene polymorphisms with primary lung carcinoma was investigated. DNA samples were obtained from a Turkish population of 44 patients with primary lung cancer, and 59 healthy control subjects. All genotyping (IFN-gamma, TGF-beta1, TNF-alpha, IL-6 and IL-10) experiments were performed using sequence-specific primers (SSP)-PCR. When compared to the healthy controls, the frequencies of high/intermediate producing genotypes of IL-10 and low producing genotype of TNF-alpha were significantly more common in the patient group. It is noteworthy that lung cancer patients with the TGF-beta T/T genotype in codon 10 had statistically longer survival compared to those having the C/C genotype (Kaplan-Meier survival function test, log rank significance = 0.014). These results suggest that IL-10, TNF-alpha and TGF-beta1 gene polymorphisms may affect host susceptibility to lung cancer and the outcome of the patients.
authors.affiliation: Biochemistry Department, Faculty of Medicine, Uludag University, Bursa, Turkey. eulukaya@uludag.edu.tr
authors.forename: Mukaddes
authors.initials: M
authors.lastname: Colakogullari
authors.forename: Engin
authors.initials: E
authors.lastname: Ulukaya
authors.forename: Arzu
authors.initials: A
authors.lastname: Yilmaztepe Oral
authors.forename: Figen
authors.initials: F
authors.lastname: Aymak
authors.forename: Bilkay
authors.initials: B
authors.lastname: Basturk
authors.forename: Ahmet
authors.initials: A
authors.lastname: Ursavas
authors.forename: H Barbaros
authors.initials: HB
authors.lastname: Oral
mesh_terms: D000328:Adult; D000483:Alleles; D016022:Case-Control Studies; D003062:Codon / Q000235:genetics; D016207:Cytokines / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D007371:Interferon-gamma / Q000235:genetics; D016753:Interleukin-10 / Q000235:genetics; D015850:Interleukin-6 / Q000235:genetics; D008175:Lung Neoplasms / Q000175:diagnosis / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D011110:Polymorphism, Genetic; D044469:Racial Groups / Q000235:genetics*; D012044:Regression Analysis; D016019:Survival Analysis; D016212:Transforming Growth Factor beta / Q000235:genetics; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics; D014421:Turkey
chemical_list: D003062:Codon; D016207:Cytokines; D015850:Interleukin-6; D016212:Transforming Growth Factor beta; D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10; D007371:Interferon-gamma