Here the authors find that erythroblasts of myelodysplastic syndromes with SF3B1 mutation leading to inefficient erythropoiesis show DNA replication stress with accelerated forks and reduced R-loops. Restoring R-loops by a histone deacetylase inhibitor rescues erythroid differentiation.
- David Rombaut
- Carine Lefèvre
- Michaela Fontenay