Published in:
01-03-2014 | Research Article
Positive association between lymphotoxin-alpha variation rs909253 and cancer risk: a meta-analysis based on 36 case–control studies
Authors:
Xi Yu, Yi Huang, Changhong Li, Hailian Yang, Caide Lu, Shiwei Duan
Published in:
Tumor Biology
|
Issue 3/2014
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Abstract
Lymphotoxin-alpha (LTA) polymorphism rs909253 has been reported to be a risk factor for cancers, but some results are inconsistent. To establish a more conclusive association, we performed a meta-analysis of this variant with cancers. A systematic search was performed for informative case–control studies of rs909253 with cancers among literature databases, including PubMed, Web of Science, Embase, China National Knowledge Infrastructure (CNKI), and Wanfang Chinese Periodical Database. After a comprehensive filtration procedure, 36 publications involved with 35,677 participants were selected for the current meta-analysis. Stratified factors, such as cancer type, populations, and source of control, were used for a better interpretation of this variant. Minimal heterogeneity was shown in the current meta-analysis (I
2 = 0.0 %, P = 0.48). Our results show a significant association of rs909253 and cancer risk (odds ratio (OR) = 1.12, P
(z) < 0.001). In the subgroup analysis, significant association of rs909253 was found in adenocarcinoma (OR = 1.16, P
(z) < 0.001) and hematological malignancy (OR = 1.10, P
(z) < 0.001). Our meta-analyses established a significant association of rs909253 with cancer risk among multiple populations including North Americans, Asians, and Europeans.