María José Lista, Anne-Caroline Jousset, Mingpan Cheng, Violaine Saint-André, Elouan Perrot, Melissa Rodrigues, Carmelo Di Primo, Danielle Gadelle, Elenia Toccafondi, Emmanuel Segeral, Clarisse Berlioz-Torrent, Stéphane Emiliani, Jean-Louis Mergny, Marc Lavigne
BACKGROUND: Once integrated in the genome of infected cells, HIV-1 provirus is transcribed by the cellular transcription machinery. This process is regulated by both viral and cellular factors, which are necessary for an efficient viral replication as well as for the setting up of viral latency, leading to a repressed transcription of the integrated provirus. RESULTS: In this study, we examined the role of two parameters in HIV-1 LTR promoter activity. We identified DNA topoisomerase1 (TOP1) to be a potent repressor of this promoter and linked this repression to its catalytic domain...
May 30, 2023: Retrovirology