Abstract

The study investigates association of XPG polymorphism with lung cancer susceptibility, overall survival and clinical outcomes in North Indian population. A significant protective effect was observed for 2228959 C/A polymorphism with lung cancer and its histological subtypes. An increased hazard ratio (HR) was observed in 17655 G/C variant among small-cell lung carcinoma patients with mutant genotype (HR: 2.55; p=0.05). Individuals treated with irinotecan-cisplatin/carboplatin regimen showed a longer survival time (HR1: 0.04; median survival time [MST]: 32.5 months). Subjects treated with pemetrexed-cisplatin/carboplain regimen were associated with higher mortality rate in lung cancer patients (HR1: 1.83; MST: 9.13 months). 2228959 C/A polymorphism contributes to protective effect in lung cancer patients. 2228959 C/A polymorphism might be associated with favorable prognosis in lung cancer risk.

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