Chemogenomic maps reveal a PRDX1-dependent iron-damage axis in the DNA damage response.

Loss of PRDX1 enhances DNA damage response inhibition, revealing a critical iron-dependent damage axis in genome stability regulation.

• Why it matters: Understanding how cellular pathways maintain genome integrity is vital for cancer therapy, as DDR perturbations lead to instability and tumor development.
• What they did: The study conducted 32 genome-scale CRISPR interference screens targeting DDR components with inhibitors, identifying over 1,000 genes that influence the DDR, and uncovered a PRDX1-related iron damage mechanism.
• The result: Findings position PRDX1 as a key suppressor of DNA damage, suggesting it as a druggable target to enhance DDR inhibitor efficacy and improve cancer treatment strategies.