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Start Over Author "Pasque V" Journal molecular cell
2 results on '"Pasque V"'

1. Hierarchical molecular events driven by oocyte-specific factors lead to rapid and extensive reprogramming

Author

Jullien, J., Miyamoto, K., Pasque, V., Allen, G. E., Bradshaw, C. R., Garrett, N. J., Halley-Stott, R. P., Kimura, Hiroshi, Ohsumi, K., and Gurdon, J. B.

Subjects
Mice, Nuclear Transfer Techniques, Oocytes/*metabolism, Genome, Chromatin/*metabolism, Organ Specificity, Sequence Analysis, RNA, Cellular Reprogramming/*genetics/physiology, Animals, RNA/genetics, Xenopus/*embryology/genetics, Cells, Cultured, Histones/*physiology
Published
2014

2. Gene Resistance to Transcriptional Reprogramming following Nuclear Transfer Is Directly Mediated by Multiple Chromatin-Repressive Pathways.

Author

Jullien J, Vodnala M, Pasque V, Oikawa M, Miyamoto K, Allen G, David SA, Brochard V, Wang S, Bradshaw C, Koseki H, Sartorelli V, Beaujean N, and Gurdon J

Subjects
Animals, Animals, Genetically Modified, Cell Line, Chromatin genetics, Chromatin Assembly and Disassembly, Cloning, Molecular, Embryo, Mammalian cytology, Embryo, Mammalian metabolism, Female, Fibroblasts metabolism, Gene Expression Regulation, Developmental, Male, Mice, Mice, 129 Strain, Mice, Inbred C57BL, Oocytes, Ubiquitin Thiolesterase genetics, Ubiquitin Thiolesterase metabolism, Ubiquitination, Xenopus laevis, Cell Nucleus metabolism, Cellular Reprogramming, Chromatin metabolism, DNA Methylation, Epigenesis, Genetic, Histones metabolism, Nuclear Transfer Techniques, Transcription, Genetic
Abstract

Understanding the mechanism of resistance of genes to reactivation will help improve the success of nuclear reprogramming. Using mouse embryonic fibroblast nuclei with normal or reduced DNA methylation in combination with chromatin modifiers able to erase H3K9me3, H3K27me3, and H2AK119ub1 from transplanted nuclei, we reveal the basis for resistance of genes to transcriptional reprogramming by oocyte factors. A majority of genes is affected by more than one type of treatment, suggesting that resistance can require repression through multiple epigenetic mechanisms. We classify resistant genes according to their sensitivity to 11 chromatin modifier combinations, revealing the existence of synergistic as well as adverse effects of chromatin modifiers on removal of resistance. We further demonstrate that the chromatin modifier USP21 reduces resistance through its H2AK119 deubiquitylation activity. Finally, we provide evidence that H2A ubiquitylation also contributes to resistance to transcriptional reprogramming in mouse nuclear transfer embryos., (Copyright © 2017 The Author(s). Published by Elsevier Inc. All rights reserved.)

Published
2017
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