Congratulations to Anne Chevallereau and Antoine Zalc, winners of the CNRS Prize - Claude Paoletti 2023

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Awards

The CNRS Institute of Biological Sciences, with the support of the CNRS Foundation, awards two Claude Paoletti prizes each year, in tribute to this researcher, former director of the CNRS life sciences department, who took numerous initiatives to support young researchers. The Claude Paoletti prizes reward young researchers who have distinguished themselves during their doctorate or post-doctorate for their work in the life sciences.
The 2 winners for 2023 are researchers from Institut Cochin: Anne Chevallereau and Antoine Zalc.

Anne Chevallereau

Faced with the increase in antibiotic resistance, the use of bacteriophage viruses which specifically infect bacteria appears to be a promising therapeutic alternative. However, bacteria also have the ability to become resistant to bacteriophages. Indeed, during their evolution, bacteria have developed an arsenal of defense systems to protect themselves against bacteriophages. I am mainly interested in the bacterium Pseudomonas aeruginosa, an opportunistic pathogen frequently involved in nosocomial infections and multi-resistant to antibiotics. My research aims to better understand how “anti-bacteriophage” resistance evolves and spreads within bacterial communities and, conversely, how bacteriophages can circumvent this resistance.

Antoine Zalc

Cell differentiation progresses via a continuous lineage restriction process where cell potential is reduced as the embryo develops. Uniquely among vertebrates, a stem cell-like population arising in the most rostral part of the embryo – called cranial neural crest cells (CNCC) – challenges this paradigm. CNCC re-express pluripotency programs to reverse cell differentiation and return into a higher potency state, allowing them to expand their differentiation potential

We seek to understand how this mechanism is regulated and how it could be harnessed to enhance craniofacial regeneration potential.

Contacts

Anne Chevallereau

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Antoine Zalc

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