Abstract Isocitrate dehydrogenase (IDH) mutations are common genetic alterations in myeloid disorders, including acute leukemia (AML) and myelodysplastic syndrome (MDS). Epigenetic changes, abnormal histone DNA methylation, have been implicated the pathogenic build-up of hematopoietic progenitors, but it is still unclear whether how IDH themselves affect hematopoiesis. Here, we show that IDH1-m...