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Tumour Biol. 2014 Jan;35(1):339-43. doi: 10.1007/s13277-013-1046-y. Epub 2013 Sep 8.

Quantitative assessment of the association between MTHFR rs1801131 polymorphism and risk of liver cancer.

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1
Department of Digestive Diseases, Provincial Hospital Affiliated to Shandong University, No. 219, Jing Wu Road, Huai Yin District, Jinan, Shandong Province, 250021, People's Republic of China.

Abstract

Methylenetetrahydrofolate reductase (MTHFR) is one of the most important enzymes for folate metabolism which plays a key role in cell metabolism. MTHFR rs1801131 (A1298C) polymorphism can decrease in vitro MTHFR enzyme activity and has been hypothesized to be associated with liver cancer risk. This study aimed to quantify the strength of the association between MTHFR rs1801131 polymorphism and liver cancer risk by performing a meta-analysis. We searched the PubMed and Wanfang databases for studies relating on the association between MTHFR rs1801131 polymorphism and risk of liver cancer. Seven studies with 2,030 cases of liver cancer and 3,096 controls were finally included into the meta-analysis. Meta-analysis of a total of seven studies showed that the homozygote genotype CC of MTHFR rs1801131 polymorphism was significantly associated with decreased risk of liver cancer (for CC versus AA: odds ratio (OR) = 0.65, 95% confidence interval (CI) 0.47-0.89, P = 0.007; for CC versus AA + AC: OR = 0.65, 95% CI 0.48-0.89, P = 0.006). Subgroup by race showed that the homozygote genotype CC of MTHFR rs1801131 polymorphism was significantly associated with decreased risk of liver cancer in Asians (CC versus AA: OR = 0.64, 95% CI 0.46-0.90, P = 0.010; for CC versus AA + AC: OR = 0.63, 95% CI 0.45-0.88, P = 0.007). However, the association in Caucasians was still unclear owing to the limited data available now. Thus, Asian individuals with the homozygote genotype CC of MTHFR rs1801131 polymorphism are significantly associated with decreased risk of liver cancer. The association in Caucasians needs further studies.

PMID:
24014085
DOI:
10.1007/s13277-013-1046-y
[Indexed for MEDLINE]
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