a panel of cpg methylation sites distinguishes human embryonic stem cells and induced pluripotent stem cells
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ID: 195720
2014
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Abstract
Whether human induced pluripotent stem cells (hiPSCs) are epigenetically identical to human embryonic stem cells (hESCs) has been debated in the stem cell field. In this study, we analyzed DNA methylation patterns in a large number of hiPSCs (n = 114) and hESCs (n = 155), and identified a panel of 82 CpG methylation sites that can distinguish hiPSCs from hESCs with high accuracy. We show that 12 out of the 82 CpG sites were subject to hypermethylation in part by DNMT3B. Notably, DNMT3B contributes directly to aberrant hypermethylation and silencing of the signature gene, TCERG1L. Overall, we conclude that DNMT3B is involved in a wave of de novo methylation during reprogramming, a portion of which contributes to the unique hiPSC methylation signature. These 82 CpG methylation sites may be useful as biomarkers to distinguish between hiPSCs and hESCs.
| Reference Key |
huang2014stema
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|---|---|
| Authors | ;Kevin Huang;Yin Shen;Zhigang Xue;Marina Bibikova;Craig April;Zhenshan Liu;Linzhao Cheng;Andras Nagy;Matteo Pellegrini;Jian-Bing Fan;Guoping Fan |
| Journal | nature reviews gastroenterology & hepatology |
| Year | 2014 |
| DOI |
10.1016/j.stemcr.2013.11.003
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