A Panel of CpG Methylation Sites Distinguishes Human Embryonic Stem Cells and Induced Pluripotent Stem Cells

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 8...

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Detalles Bibliográficos
Autores principales: Huang, Kevin, Shen, Yin, Xue, Zhigang, Bibikova, Marina, April, Craig, Liu, Zhenshan, Cheng, Linzhao, Nagy, Andras, Pellegrini, Matteo, Fan, Jian-Bing, Fan, Guoping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2013
Materias:
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3916755/
https://www.ncbi.nlm.nih.gov/pubmed/24511466
http://dx.doi.org/10.1016/j.stemcr.2013.11.003
Descripción
Sumario: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.

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