Association between CEBPE Variant and Childhood Acute Leukemia Risk: Evidence from a Meta-Analysis of 22 Studies

PLoS One. 2015 May 4;10(5):e0125657. doi: 10.1371/journal.pone.0125657. eCollection 2015.

Abstract

The CCAAT/enhancer binding proteins (CEBPs) have been involved in the etiology of acute leukemia (AL) and investigated in numerous genetic association studies, however, the results were inconclusive. The current meta-analysis was conducted to clarify the effect of CEBPE rs2239633 variant on childhood AL risk. Electronic literature search was performed on August 15, 2014, from databases of Medline, PubMed, Embase, and Web of Science. A total of 22 case-control studies were eligible for the pooled analysis. The results demonstrated that rs2239633 A allele was significantly associated with a decreased risk of childhood AL (A vs G: OR=0.87, 95%CI = 0.80, 0.94, p<0.001), especially in B-cell ALL subgroup (A vs G: OR = 0.79, 95%CI = 0.74, 0.83, p<0.001), but not among T-cell ALL or AML subgroups. In the stratified analysis by ethnicity, the association was observed in Europeans (A vs G: OR = 0.80, 95%CI = 0.76, 0.84, p<0.001) but not in Asian and mixed populations. Moreover, the results of sensitivity and cumulative meta-analysis indicated the robustness of our results. Also, Begg's and Egger's tests did not indicate any evidence of obvious asymmetry. In summary, our study provided evidence that CEBPE rs2239633 variant is associated with decreased risk of childhood B-cell ALL in Europeans.

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute Disease
  • Age Factors
  • Alleles
  • CCAAT-Enhancer-Binding Proteins / genetics*
  • Child
  • Genetic Predisposition to Disease*
  • Genetic Variation*
  • Genotype
  • Humans
  • Leukemia / genetics*
  • Odds Ratio
  • Polymorphism, Single Nucleotide
  • Publication Bias
  • Risk

Substances

  • CCAAT-Enhancer-Binding Proteins
  • CEBPE protein, human

Grants and funding

The study was supported by Science and Technology Development Foundation of Nanjing Medical University (No. 2014NLMU144). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.