Claude Prigent received his PhD degree in Biology at the University in Rennes 1, France, studying DNA ligases in the laboratory of Pr. Michel Philippe. He then worked on DNA repair mechanisms at the Imperial Cancer Research Fund laboratories at South Mimms, London, England, in the laboratory of Pr. Thomas Lindahl. He got a permanent position in the CNRS (French National Center for Scientific Research) just after his postdoc in 1993. He established his own research group in 1996 in Rennes with the main objective on studying the regulation of cell cycle progression by protein kinases with a particular focus on mitosis. His team is also deeply engaged in cancer research trying to understand how deregulated kinases participate in carcinogenesis.