Arginine methylation is crucial for tumor maintenance. PRMT9 levels are elevated in acute myeloid leukemia, and its inhibition eradicates leukemia by diminishing arginine methylation of proteins involved in DNA damage response and RNA translation. This activates the cGAS–STING pathway, which triggers immune responses directed against leukemia. Epigenetic targeting of DNA-damage-response mechanisms may bolster anti-tumor immunity.
- Antonella Santoro
- Raffaella Di Micco