title: Genetic Polymorphism of DNA Methyltransferase 3A rs1550117 A>G and Risk of Cancer: A Meta-analysis.
abstract: Numerous studies have investigated the association between DNMT3A rs1550117 A>G polymorphism and cancer risk, but the results are inconsistent. To obtain a more precise evaluation of the relationship, we performed a meta-analysis of 10 case-control studies involving a total of 2184 cancer cases and 3420 controls. Our findings demonstrated a significant association between DNMT3A rs1550117 A>G polymorphism and increased risk of cancer in three genetic models: AA vs. AG + GG (OR, 1.79; 95% CI, 1.12-2.88; p = 0.015), AA vs. GG (OR, 1.81; 95% CI, 1.11-2.95; p = 0.018) and AA vs. AG (OR 1.77; 95% CI 1.13-2.79; p = 0.013). In a stratified analysis by cancer type, significant association between DNMT3A rs1550117 A>G polymorphism and increased risk of colorectal cancer was identified in four genetic models: AA vs. AG + GG (OR, 3.07; 95% CI, 1.56-6.06; p = 0.001), AA vs. GG (OR, 3.16; 95% CI, 1.58-6.29; p = 0.001), AA vs. AG (OR, 2.87; 95% CI, 1.41-5.84; p = 0.004), A vs. G (OR, 1.43; 95% CI, 1.11-1.83; p = 0.005). Furthermore, a stratified analysis by ethnicity, significant increased risk of cancer was found among Asians in three genetic models: AA vs. AG + GG (OR, 1.77; 95% CI, 1.09-2.88; p = 0.022), AA vs. GG (OR, 1.78; 95% CI, 1.08-2.96; p = 0.025), AA vs. AG (OR, 1.75; 95% CI, 1.10-2.79; p = 0.019). No significant publication bias was revealed for the meta-analysis. Sensitivity analysis suggested the reliability of our findings. In conclusion, this meta-analysis suggests that DNMT3A rs1550117 A>G polymorphism may be associated with cancer susceptibility.
authors.affiliation: a 1 Department of General Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
authors.forename: Wenbo
authors.initials: W
authors.lastname: Zhang
authors.affiliation: b 2 Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Xu
authors.affiliation: a 1 Department of General Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
authors.forename: Gui
authors.initials: G
authors.lastname: Ma
authors.affiliation: a 1 Department of General Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
authors.forename: Weidong
authors.initials: W
authors.lastname: Qi
authors.affiliation: c 3 Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
authors.forename: Haiyong
authors.initials: H
authors.lastname: Gu
authors.affiliation: a 1 Department of General Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
authors.forename: Pengcheng
authors.initials: P
authors.lastname: Jiang
mesh_terms: D044466:Asian People / Q000235:genetics; D016022:Case-Control Studies; D015179:Colorectal Neoplasms / Q000201:enzymology / Q000235:genetics; D004248:DNA (Cytosine-5-)-Methyltransferases / Q000235:genetics*; D000090205:DNA Methyltransferase 3A; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D008957:Models, Genetic; D009369:Neoplasms / Q000201:enzymology* / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors
chemical_list: C000717967:DNMT3A protein, human; D004248:DNA (Cytosine-5-)-Methyltransferases; D000090205:DNA Methyltransferase 3A
keywords: DNA methyltransferase 3A, single nucleotide polymorphism, cancer, meta-analysis, rs 1550117