A Case/Control Study: AGBL1 Polymorphism Related to Lung Cancer Risk in Chinese Nonsmoking Females.

ATP/GTP binding protein like 1 (AGBL1) plays a role in controlling the length of polyglutamate side chains. Polymorphism rs4513061 in AGBL1 is suspected to influence the risk of lung cancer. A case/control study was performed involving 556 cases and 563 controls from a hospital participating in donation. The relationship between rs4513061 and the risk of lung cancer and the interaction between rs4513061 and environmental exposure were determined by the chi-square tests, logistic regression analysis, and crossover analysis. The survival analysis was conducted by Cox proportional hazard regression. The results showed that rs4513061 polymorphism is associated with the risk of lung cancer. The stratified analysis suggested the protective effect of rs4513061 to different histological types of lung cancer, including lung adenocarcinoma (AA vs. GG: odds ratio [OR] = 0.505, 95% confidence interval [CI] = 0.337-0.756, p < 0.001), squamous cell lung cancer (AG vs. GG: OR = 0.488, 95% CI = 0.269-0.883, p = 0.018), and small-cell lung cancer (AA vs. GG: OR = 0.421, 95% CI = 0.216-0.819, p = 0.011). Nevertheless, there was no significant interaction between rs4513061 and cooking oil fume. Significant impact was not observed between the rs4513061 polymorphism and survival time of lung cancer. Our study indicated that rs4513061 in AGBL1 decreases the risk of lung cancer in nonsmoking females from northeast China.

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