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A new functional IDH2 genetic variant is associated with the risk of lung cancer.

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机构: [1]Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China. [2]Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China. [3]Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China. [4]Department of Medical Oncology, Xiangya Hospital, Central South University, Changsha, China. [5]Department of Medicine Clinical Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China. [6]Cancer Biotherapy Center, The Third Affiliated Hospital of Kunming Medical University (Tumor Hospital of Yunnan Province), Kunming, China. [7]Department of Clinical Laboratory, The Third Affiliated Hospital of Kunming Medical University, Kunming, China. [8]Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China. [9]The Hormel Institute, University of Minnesota, Austin, Minnesota.
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关键词: IDH2 functional genetic variant lung cancer

摘要:
Recently, mutations in isocitrate dehydrogenase 1/2 (IDH1/2) were discovered in 70% of low-grade glioma and secondary glioblastoma multiforme. The discovery of an oncogenic function and the identification of onco-metabolites of IDH1/2 support new roles for metabolism in cancer. For example, some evidence indicates that IDH2 might also exhibit oncogenic functions by promoting cellular metabolism and cancer cell growth. We examined the association between IDH2 rs11540478 and lung cancer risk in 262 lung cancer patient cases and 602 healthy control subjects and also investigated the biological function of rs11540478 in vivo. We found that a higher risk was observed in lung cancer patient carriers of rs11540478 TT and CT compared with CC carriers (OR = 1.44; 95%CI = 1.04-2.00; P = 0.03). The frequency of IDH2 rs11540478 TT and CT carriers was decreased in healthy individuals between the ages of 50-77 compared to those aged 30-49 (OR = 0.67; 95%CI = 0.47-0.96; P = 0.03). Functional analysis showed the effect of rs11540478 on IDH2 expression and lung cancer cell viability, with higher IDH2 expression and cell viability among T allele compared with C allele. IDH2 mRNA was higher in peripheral blood lymphocytes from lung cancer patients compared to healthy subjects. Herein, for the first time we identified IDH2 rs11540478 as a new susceptibility locus for lung cancer. The effect of rs11540478 on mRNA expression of IDH2 and lung cancer cell viability might provide new insight for the genetic basis of lung cancer. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

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出版当年[2017]版:
大类 | 2 区 医学
小类 | 2 区 生化与分子生物学 2 区 肿瘤学
最新[2023]版:
大类 | 2 区 医学
小类 | 2 区 生化与分子生物学 3 区 肿瘤学
第一作者:
第一作者机构: [1]Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China. [2]Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China. [3]Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China.
通讯作者:
通讯机构: [1]Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China. [2]Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China. [3]Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China. [*1]Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, China.
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