Retinoic acid and ascorbate synergize to suppress myeloid leukemia via TET2 activation.

ABSTRACT: Enhancing ten-eleven translocation 2 (TET2) activity through genetic or pharmacologic approaches, such as ascorbate supplementation, can slow myeloid malignancy progression. However, ascorbate alone may be insufficient to fully activate TET2 in malignant cells due to pharmacokinetic constraints and the need for chromatin remodeling to enable effective cellular reprogramming. Here, we identify a novel mechanism to enhance TET2 activity via all-trans retinoic acid (ATRA), which induces retinoic acid receptor alpha (RARA)-mediated TET2 transcription in myeloid leukemia cells and synergizes with ascorbate to promote DNA hydroxymethylation and chromatin remodeling at key myeloid differentiation loci. Using Tet1/2/3-deficient mice and primary human acute myeloid leukemia (AML) models, we show th

SUBMITTER: Leesang TE 

PROVIDER: S-EPMC12676480 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature