Nakatani, T. ; Lin, J. ; Ji, F.* ; Ettinger, A. ; Pontabry, J. ; Tokoro, M.* ; Altamirano-Pacheco, L. ; Fiorentino, J. ; Mahammadov, E. ; Hatano, Y.* ; Van Rechem, C.* ; Chakraborty, D.* ; Ruiz-Morales, E.R. ; Scialdone, A. ; Yamagata, K.* ; Whetstine, J.R.* ; Sadreyev, R.I.* ; Torres-Padilla, M.E.
DNA replication fork speed underlies cell fate changes and promotes reprogramming.
Nat. Genet. 54, 318–327 (2022)
Totipotency emerges in early embryogenesis, but its molecular underpinnings remain poorly characterized. In the present study, we employed DNA fiber analysis to investigate how pluripotent stem cells are reprogrammed into totipotent-like 2-cell-like cells (2CLCs). We show that totipotent cells of the early mouse embryo have slow DNA replication fork speed and that 2CLCs recapitulate this feature, suggesting that fork speed underlies the transition to a totipotent-like state. 2CLCs emerge concomitant with DNA replication and display changes in replication timing (RT), particularly during the early S-phase. RT changes occur prior to 2CLC emergence, suggesting that RT may predispose to gene expression changes and consequent reprogramming of cell fate. Slowing down replication fork speed experimentally induces 2CLCs. In vivo, slowing fork speed improves the reprogramming efficiency of somatic cell nuclear transfer. Our data suggest that fork speed regulates cellular plasticity and that remodeling of replication features leads to changes in cell fate and reprogramming.
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Publication type
Article: Journal article
Document type
Scientific Article
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Editors
Keywords
Embryonic-like Cells; Genome Activation; Nuclear Transfer; Mouse Oocytes; Chromatin; Dynamics; Transcription; Domains; Choice; Genes
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Language
english
Publication Year
2022
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HGF-reported in Year
2022
ISSN (print) / ISBN
1061-4036
e-ISSN
1546-1718
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Volume: 54,
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Pages: 318–327
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Nature Publishing Group
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New York, NY
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Peer reviewed
POF-Topic(s)
30204 - Cell Programming and Repair
30205 - Bioengineering and Digital Health
30203 - Molecular Targets and Therapies
Research field(s)
Stem Cell and Neuroscience
Enabling and Novel Technologies
Helmholtz Diabetes Center
PSP Element(s)
G-506200-001
G-506290-001
G-503800-001
G-502800-001
Grants
NIDDK NIH HHS
U.S. Department of Health & Human Services | National Institutes of Health (NIH)
MEXT | Japan Society for the Promotion of Science (JSPS)
Deutsche Forschungsgemeinschaft (German Research Foundation)
Helmholtz Association
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Erfassungsdatum
2022-04-22