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  • Technician
  • Undergraduate Student
  • Veterinary
  • Visiting Scientist
  • Deputy Director of Center
  • Deputy Director of Department
  • Deputy Director of National Reference Center
  • Deputy Head of Facility
  • Director of Center
  • Director of Department
  • Director of Institute
  • Director of National Reference Center
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Scientific Fields
Diseases
Organisms
Applications
Technique
Starting Date
09
Jun 2015
Status
Ongoing
Members
3
Structures
2

About

The study of ES cells has not escaped the recent explosion of regulatory lncRNA biology: from the thousands of lncRNAs that have been identified across the mouse genome a large subset is expressed in ES cells. Our goal is to identify “pluripotency lncRNAs” that would impact on ES cell biology as strongly as well established pluripotency transcription factors. We will focus on Nanog-mediated regulation as a tool to discover relevant lncRNAs. Indeed, among the three main pluripotency factors (Oct4, Sox2 and Nanog), only Nanog can be manipulated without dramatically affecting the ES cell transcriptome. Yet, within the very limited number of genes strictly dependent upon Nanog, highly relevant transcription factors such as Esrrb, Klf4, Rex1 and Prdm14 are found. We therefore postulate that within the potentially small number of Nanog-dependent lncRNAs, molecules as important as the aforementioned transcription factors should be easily identified. We have already performed a micro-array analysis of transgenic ES cells in which Nanog can be rapidly deleted and restored and identified around 300 lncRNAs that are strictly dependent upon Nanog and associated to the ground state of pluripotency.

Candidate lncRNAs displaying levels of expression (red-low and blue-high) correlated to the activity of the pluripotency network
Candidate lncRNAs displaying levels of expression (red-low and blue-high) correlated to the activity of the pluripotency network

Fundings