| Home > Articles > Published articles > The interferon γ pathway enhances pluripotency and X-chromosome reactivation in iPSC reprogramming |
| Date: | 2024 |
| Abstract: | Reprogramming somatic cells into induced pluripotent stem cells (iPSCs) requires activation of the pluripotency network and resetting of the epigenome by erasing the epigenetic memory of the somatic state. In female mouse cells, a critical epigenetic reprogramming step is the reactivation of the inactive X chromosome. Despite its importance, a systematic understanding of the regulatory networks linking pluripotency and X-reactivation is missing. Here, we reveal important pathways for pluripotency acquisition and X-reactivation using a genome-wide CRISPR screen during neural precursor to iPSC reprogramming. In particular, we discover that activation of the interferon γ (IFNγ) pathway early during reprogramming accelerates pluripotency acquisition and X-reactivation. IFNγ stimulates STAT3 signaling and the pluripotency network and leads to enhanced TET-mediated DNA demethylation, which consequently boosts X-reactivation. We therefore gain a mechanistic understanding of the role of IFNγ in reprogramming and X-reactivation and provide a comprehensive resource of the molecular networks involved in these processes. |
| Grants: | Agencia Estatal de Investigación PID2021-123383NB-I00 Agencia Estatal de Investigación PID2019-111243RA-I00 Agencia Estatal de Investigación PID2022-142679NB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-346 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-01222 |
| Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
| Language: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Subject: | Cell reprogramming ; Epigenetic memory ; Epigenetics ; Epigenomes ; Induced pluripotent stem cells ; Mouse cells ; Pluripotency ; Regulatory network ; Somatic cells ; X chromosomes ; Animals ; Cellular Reprogramming ; DNA Methylation ; Epigenesis, Genetic ; Female ; Induced Pluripotent Stem Cells ; Interferon-gamma ; Mice ; Signal Transduction ; STAT3 Transcription Factor ; X Chromosome |
| Published in: | Science advances, Vol. 10 Núm. 32 (august 2024) , p. adj8862, ISSN 2375-2548 |
24 p, 9.9 MB |