In this issue, Maganti and colleagues described an epigenetic link between reduced abundance of Polycomb-related protein MTF2 and chemotherapy resistance in refractory acute myeloid leukemia. MTF2 deficiency impaired expression of the PRC2 complex and deposition of H3K27me3 at many genes, including the key target gene MDM2, leading to increased MDM2 expression that in turn depleted p53 and thereby conferred chemoresistance. Cancer Discov; 8(11); 1348-51. ©2018 AACR See related article by Maganti et al., p. 1376.
©2018 American Association for Cancer Research.