DNA methylation in stem cells
One of our research axes is focused on understanding how DNA methylation patterns are established, maintained, and interpreted during embryonic development. To address these questions we use mouse embryonic stem (ES) cells as our model, and we apply a wide array of tools: cell biology, genomics, proteomics, bioinformatics… This has led us, for example, to decipher important mechanisms of epigenetic memory (Ferry et al, Mol Cell 2017, review in Petryk et al NAR 2020). More recently, we carried out genome-wide CRISPR screens to identify factors linking epigenetics and cellular state (Gupta, Yakhou et al., NSMB 2023).
A CRISPR screen identifies new repressors of the totipotent state in mouse embryonic stem cells
In mammals, only the zygote and blastomeres of the early embryo are fully totipotent. This totipotency is reflected in vitro by the expression of markers such as Zscan4. We performed a genome-wide CRISPR KO screen in mouse embryonic stem cells, looking for mutants that reactivate the expression of totipotency markers, like for example the knock-out of Spop.
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Congratulations to Jérémy, newly appointed Associate Professor!
We are delighted to announce Jérémy Berthelet's success in the Assistant Professor competition!On September 1, 2025, Jérémy officially joined our laboratory as a civil servant lecturer-researcher (trainee). This position is an important step, not only in his career,...
Congratulations to Souhila, promoted full Professor !
We are delighted to announce the success of Souhila MEDJKANE, who has been promoted to full Professor!On September 1, 2025, Souhila was officially promoted to Professor. This is a major milestone in her career, and a source of great pride for our team and the teaching...
Congratulations to Delphine and Julia for their research funding
Congratulations to Delphine Burlet on getting a postdoctoral grant from the Fondation de France and to Julia Roche Dupuy who obtained a fellowship from the HOB doctoral school to finance her PhD thesis. Delphine Burlet, Julia Roche Dupuy À lire aussi
Welcome to Annabelle, new post-doc in the team!
Annabelle joins the lab as a post-doctoral fellow. She completed her PhD at the University of Oxford under the supervision of Prof. Monika Gullerova. Her doctoral work focused on the role of small non-coding Y RNAs and the RNA-binding protein, YBX1, in intracellular...