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  • Title: Association of TNFα-308, IFNγ+874, and IL10-1082 gene polymorphisms and the risk of non-small cell lung cancer in the population of the South Indian state of Telangana.
    Author: Peddireddy V, Badabagni SP, Sulthana S, Kolla VK, Gundimeda SD, Mundluru H.
    Journal: Int J Clin Oncol; 2016 Oct; 21(5):843-852. PubMed ID: 27282611.
    Abstract:
    BACKGROUND: Cytokine-mediated inflammation is important in the pathogenesis of non-small cell lung cancer (NSCLC). Genetic polymorphisms in cytokine genes and their association with lung cancer in the Indian population have not been reported. METHODS: For the first time, we analyzed genetic polymorphisms of TNFα -308, IFNγ +874, and IL10 -1082 genes in 246 NSCLC patients and 250 healthy controls in the South Indian population from Telangana using ARMS PCR. RESULTS: IFNγ+874 A/T and IL10-1082 G/G gene polymorphisms were found to be significantly associated with NSCLC with 1.56- and 1.68-fold disease risk, respectively. There was no association between the risk of NSCLC and TNFα-308 polymorphism. Gene polymorphisms stratified according to smoking revealed that IFNγ+874 A/T polymorphisms in smokers increased the disease risk by 2.91 fold. IL10-1082 G/G polymorphisms showed 2-fold increased risk among patients who were smokers when compared to the controls. However, there was no association between TNFα-308, IFNγ+874, and IL10-1082 gene polymorphism and the stage of the NSCLC patients. The overall risk associated with the combination of these polymorphisms indicated that the TNFα-308 G/A + IFNγ+874 A/T + IL10-1082 G/G genotype increased the risk by 1.5 fold. CONCLUSIONS: The results of our study indicate an association between cytokine gene polymorphisms and the risk of NSCLC in an Indian population.
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