Abstract
Embryonic stem cells (ESCs) are a hallmark of ideal pluripotent stem cells. Epigenetic reprogramming of induced pluripotent stem cells (iPSCs) has not been fully accomplished. iPSC generation is similar to somatic cell nuclear transfer (SCNT) in oocytes, and this procedure can be used to generate ESCs (SCNT-ESCs), which suggests the contribution of oocyte-specific constituents. Here, we show that the mammalian oocyte-specific linker histone H1foo has beneficial effects on iPSC generation. Induction of H1foo with Oct4, Sox2, and Klf4 significantly enhanced the efficiency of iPSC generation. H1foo promoted in vitro differentiation characteristics with low heterogeneity in iPSCs. H1foo enhanced the generation of germline-competent chimeric mice from iPSCs in a manner similar to that for ESCs. These findings indicate that H1foo contributes to the generation of higher-quality iPSCs.
Copyright © 2016 The Author(s). Published by Elsevier Inc. All rights reserved.
MeSH terms
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Animals
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Cellular Reprogramming*
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Chimerism
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Embryo, Mammalian
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Epigenesis, Genetic*
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Female
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Fibroblasts / cytology
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Fibroblasts / metabolism
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Gene Expression
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Histones / genetics*
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Histones / metabolism
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Induced Pluripotent Stem Cells / cytology
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Induced Pluripotent Stem Cells / metabolism*
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Kruppel-Like Factor 4
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Kruppel-Like Transcription Factors / genetics
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Kruppel-Like Transcription Factors / metabolism
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Mice
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Mice, Transgenic
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Octamer Transcription Factor-3 / genetics
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Octamer Transcription Factor-3 / metabolism
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Oocytes / cytology
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Oocytes / metabolism*
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Proto-Oncogene Proteins c-myc / genetics
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Proto-Oncogene Proteins c-myc / metabolism
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SOXB1 Transcription Factors / genetics
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SOXB1 Transcription Factors / metabolism
Substances
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H1f8 protein, mouse
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Histones
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Klf4 protein, mouse
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Kruppel-Like Factor 4
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Kruppel-Like Transcription Factors
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Myc protein, mouse
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Octamer Transcription Factor-3
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Pou5f1 protein, mouse
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Proto-Oncogene Proteins c-myc
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SOXB1 Transcription Factors
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Sox2 protein, mouse