CLPTM1L gene rs402710 (C > T) and rs401681 (C > T) polymorphisms associate with decreased cancer risk: a meta-analysis
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Jianzhou Tang1,*, Changming Hu2,*, Hua Mei3, Liang Peng1 and Hui Li4
1Department of Biological and Environmental Engineering, Changsha University, Changsha 410003, Hunan, China
2Department of Molecular Pathology, Guangzhou Kingmed Center for Clinical Laboratory, Guangzhou 510000, Guangdong, China
3Department of Somatic Stem Cell, Hunan Guangxiu Hospital, Changsha 410002, Hunan, China
4Department of Microbiology and Immunology, Medical School of Jishou University, Jishou 416000, Hunan, China
*These authors contributed equally to this work and should be considered as co-first authors
Hui Li, email: email@example.com
Keywords: CLPTM1L, polymorphism, cancer, risk, meta-analysis
Received: August 14, 2017 Accepted: September 20, 2017 Published: November 01, 2017
Cleft lip and palate transmembrane 1-like (CLPTM1L) gene rs402710 (C > T) and rs401681 (C > T) polymorphisms have been widely studied for their potential relation to cancer risk, but studies have produced conflicting results. To systematically evaluate the association between these two polymorphisms and overall cancer risk, we conducted a comprehensive meta-analysis on all relevant articles found in the PubMed and EMBASE databases published prior to May 1, 2017. There were 26 articles with 28 studies, including 30,770 cases and 34,089 controls, for the rs402710 polymorphism and 38 articles with 48 studies, including 67,849 cases and 328,226 controls, for the rs401681 polymorphism. The pooled results indicated that both rs402710 and rs401681 polymorphisms are significantly associated with decreased overall cancer risk. In our stratification analysis, a significant association of the rs402710 polymorphism with lung and bladder cancers was identified among Asian and Caucasian populations in both hospital-based and population-based studies. The rs401681 polymorphism was significantly associated with a decreased risk of lung cancer, bladder cancer, and basal cell carcinoma in Asians and in hospital-based studies. CLPTM1L gene rs402710 and rs401681 polymorphisms thus have a protective association with various types of cancer, especially lung cancer among Asians.
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