The diagnostic value of DNA methylation in leukemia: A systematic review and meta-analysis

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Abstract

Background: Accumulating evidence supports a role of DNA methylation in the pathogenesis of leukemia. The aim of our study was to evaluate the potential genes with aberrant DNA methylation in the prediction of leukemia risk by a comprehensive meta-analysis of the published data. Methods: A series of meta-analyses were done among the eligible studies that were harvested after a careful fil tration of the searching results from PubMed literature database. Mantel-Haenszel odds ratios and 95% confidence intervals were computed for each methylation event assuming the appropriate model. Results: A total of 535 publications were initially retrieved from PubMed literature database. After a three-step filtration, we harvested 41 case-control articles that studied the role of gene methylation in the prediction of leukemia risk. Among the involving 30 genes, 20 genes were shown to be aberrantly methylated in the leukemia patients. A further subgroup metaanalysis by subtype of leukemia showed that CDKN2A, CDKN2B, ID4 genes were significantly hypermethylated in acute myeloid leukemia. Conclusions: Our meta-analyses identified strong associations between a number of genes with aberrant DNA methylation and leukemia. Further studies should be required to confirm the results in the future. © 2014 Jiang et al.

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Jiang, D., Hong, Q., Shen, Y., Xu, Y., Zhu, H., Li, Y., … Duan, S. (2014). The diagnostic value of DNA methylation in leukemia: A systematic review and meta-analysis. PLoS ONE, 9(5). https://doi.org/10.1371/journal.pone.0096822

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