Fiche publication
Date publication
décembre 2019
Journal
Journal of the American Chemical Society
Auteurs
Membres identifiés du Cancéropôle Est :
Dr MONCHAUD David
Tous les auteurs :
Duskova K, Lejault P, Benchimol É, Guillot R, Britton S, Granzhan A, Monchaud D
Lien Pubmed
Résumé
Translocation of DNA and RNA polymerases along their duplex substrates results in DNA supercoiling. This torsional stress promotes the formation of plectonemic structures, including three-way DNA junction (TWJ), which can block DNA transactions and lead to DNA damage. While cells have evolved multiple mechanisms to prevent the accumulation of such structures, stabilizing TWJ through ad hoc ligands offer an opportunity to trigger DNA damage in cells with high level of transcription and replication, such as cancer cells. Here, we develop a series of azacryptand-based TWJ ligands, we thoroughly characterize their TWJ-interacting properties in vitro and demonstrate their capacity to trigger DNA damage in rapidly dividing human cancer cells. We also demonstrate that TWJ ligands are amenable to chemically induced synthetic lethality strategies upon association with inhibitors of DNA repair, thus paving the way towards innovative drug combinations to fight cancers.
Référence
J. Am. Chem. Soc.. 2019 Dec 13;:
