title: TNF-alpha, TNF-beta, IL-6, and IL-10 polymorphisms in patients with lung cancer.
abstract: Apart from cigarette smoking, genetic factors seem to be of importance in the development of lung cancer. The present case-control study investigated frequencies of five inflammatory response gene polymorphisms (TNF-alpha-308, TNF-beta-Intron1-252, IL-6-174, IL-10-819 and IL-10-1082) in patients with lung cancer and controls. The study population consisted of 117 patients with lung cancer (77 patients with NSCLC, including 40 Squamous Cell Carcinoma and 26 Adenocarcinoma, and 40 patients with SCLC), 117 matched controls without pulmonary disease and 243 healthy individuals (population control). Genotype analyses revealed no difference in genotype frequencies using matched-pair analysis. However, in comparison to the population control, the IL-10-1082 genotypes carrying the G allele appeared with higher frequency in the SCLC group (p=0.006) [SCLC: 84.6%, population controls: 64.6%]. This yields an odds ratio of 3.01 for SCLC (95% CI = [1.21, 7.48]). No associations were seen for all other polymorphisms analysed. The study raises the possibility of a correlation between the IL-10-1082_G allele and the presence of SCLC in a German population. The functional IL-10-1082 polymorphism correlates with altered IL-10 levels and might influence lung cancer susceptibility by altered inflammatory responses in the airways.
authors.affiliation: Department of Internal Medicine, Division of Respiratory Medicine, Philipps-University of Marburg, Germany. zwiebel@mailer.uni-marburg.de
authors.forename: Carola
authors.initials: C
authors.lastname: Seifart
authors.forename: Alexandra
authors.initials: A
authors.lastname: Plagens
authors.forename: Astrid
authors.initials: A
authors.lastname: Dempfle
authors.forename: Ursula
authors.initials: U
authors.lastname: Clostermann
authors.forename: Claus
authors.initials: C
authors.lastname: Vogelmeier
authors.forename: Peter
authors.initials: P
authors.lastname: von Wichert
authors.forename: Ulf
authors.initials: U
authors.lastname: Seifart
mesh_terms: D000230:Adenocarcinoma / Q000235:genetics; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000483:Alleles; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics; D002294:Carcinoma, Squamous Cell / Q000235:genetics; D016022:Case-Control Studies; D045744:Cell Line, Tumor; D017931:DNA Primers / Q000737:chemistry; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D016753:Interleukin-10 / Q000235:genetics*; D015850:Interleukin-6 / Q000235:genetics*; D008175:Lung Neoplasms / Q000235:genetics* / Q000473:pathology; D008233:Lymphotoxin-alpha / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D011401:Promoter Regions, Genetic; D012907:Smoking; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics*
chemical_list: D017931:DNA Primers; D015850:Interleukin-6; D008233:Lymphotoxin-alpha; D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10