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  4. A role for mitotic bookmarking of SOX2 in pluripotency and differentiation
 
research article

A role for mitotic bookmarking of SOX2 in pluripotency and differentiation

Deluz, Cédric  
•
Friman, Elias T.  
•
Strebinger, Daniel  
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November 15, 2016
Genes & Development

Mitotic bookmarking transcription factors remain bound to chromosomes during mitosis and were proposed to regulate phenotypic maintenance of stem and progenitor cells at the mitosis-to-G1 (M-G1) transition. However, mitotic bookmarking remains largely unexplored in most stem cell types, and its functional relevance for cell fate decisions remains unclear. Here we screened for mitotic chromosome binding within the pluripotency network of embryonic stem (ES) cells and show that SOX2 and OCT4 remain bound to mitotic chromatin through their respective DNA-binding domains. Dynamic characterization using photobleaching-based methods and single-molecule imaging revealed quantitatively similar specific DNA interactions, but different nonspecific DNA interactions, of SOX2 and OCT4 with mitotic chromatin. Using ChIP-seq (chromatin immunoprecipitation [Chill combined with high-throughput sequencing) to assess the genome-wide distribution of SOX2 on mitotic chromatin, we demonstrate the bookmarking activity of SOX2 on a small set of genes. Finally, we investigated the function of SOX2 mitotic bookmarking in cell fate decisions and show that its absence at the M-G1 transition impairs pluripotency maintenance and abrogates its ability to induce neuroectodermal differentiation but does not affect reprogramming efficiency toward induced pluripotent stem cells. Our study demonstrates the mitotic bookmarking property of SOX2 and reveals its functional importance in pluripotency maintenance and ES cell differentiation.

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Type
research article
DOI
10.1101/gad.289256.116
Web of Science ID

WOS:000390615700007

Author(s)
Deluz, Cédric  

EPFL

Friman, Elias T.  
Strebinger, Daniel  
Benke, Alexander  
Raccaud, Mahe
Callegari, Andrea  
Leleu, Marion  

EPFL

Manley, Suliana  

EPFL

Suter, David M.  

EPFL

Date Issued

2016-11-15

Publisher

Cold Spring Harbor Laboratory

Published in
Genes & Development
Volume

30

Issue

22

Start page

2538

End page

2550

Subjects

embryonic stem cells

•

mitotic bookmarking

•

neuroectoderm

•

pluripotency

Note

This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LEB  
Available on Infoscience
January 24, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/133639
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