Chromatin function in DNA Double Strand breaks repair Prime repair and restore...
Chromatin function in DNA Double Strand breaks repair Prime repair and restore DSB Inducible via AsiSI
"Among the types of damage, DNA Double Strands Breaks (DSBs) are the most deleterious, as illustrated by the variety of human diseases associated with DSB repair defects. Repair of DSB into the chromatin context raises several que...
"Among the types of damage, DNA Double Strands Breaks (DSBs) are the most deleterious, as illustrated by the variety of human diseases associated with DSB repair defects. Repair of DSB into the chromatin context raises several questions that we aim to address in this proposal. Firstly, it is likely that the chromatin environment where a break occurs influences the choice of repair pathway. Since the different DSB repair mechanisms can lead to different ""scar"" on the genome, further studies are required to elucidate how chromatin structure regulates the targeting of DSB repair machineries. Secondly, DNA packaging into chromatin hinders detection and repair of DSBs and many chromatin modifications were recently identified as induced around DSBs to facilitate repair. However, a complete picture of the chromatin landscape set up at DSB, and more specifically the set of histone modifications associated with each repair pathway (""repair histone code"") is still awaited. In addition, whether and how damaged chromosomes are reorganized within the nucleus is still unknown. Finally, once repair has been completed, the initial chromatin landscape must be faithfully restored in order to maintain epigenome stability and cell fate.
Using an experimental system we recently developed (called DIvA for DSB Inducible via AsiSI), that allows the induction of multiple sequence-specific DSBs widespread across the genome, we propose to investigate these uncovered aspects of the relationship between chromatin and DSB repair. By high-throughput genomic and proteomic technologies, we will try (i) to understand the contribution of chromatin in the DSB repair pathway choice (PRIME), (ii) to describe more thoroughly the chromatin remodeling events and the spatial chromosomes reorganization, that occur concomitantly to DSB to promote adequate repair (REPAIR), and (iii) to elucidate the processes at work to restore epigenome integrity after DSB repair (RESTORE).
"ver más
Seleccionando "Aceptar todas las cookies" acepta el uso de cookies para ayudarnos a brindarle una mejor experiencia de usuario y para analizar el uso del sitio web. Al hacer clic en "Ajustar tus preferencias" puede elegir qué cookies permitir. Solo las cookies esenciales son necesarias para el correcto funcionamiento de nuestro sitio web y no se pueden rechazar.
Cookie settings
Nuestro sitio web almacena cuatro tipos de cookies. En cualquier momento puede elegir qué cookies acepta y cuáles rechaza. Puede obtener más información sobre qué son las cookies y qué tipos de cookies almacenamos en nuestra Política de cookies.
Son necesarias por razones técnicas. Sin ellas, este sitio web podría no funcionar correctamente.
Son necesarias para una funcionalidad específica en el sitio web. Sin ellos, algunas características pueden estar deshabilitadas.
Nos permite analizar el uso del sitio web y mejorar la experiencia del visitante.
Nos permite personalizar su experiencia y enviarle contenido y ofertas relevantes, en este sitio web y en otros sitios web.