Plant Compound DHL-11 Targets IMPDH2 to Halt Triple-Negative Breast Cancer
A plant-derived limonoid named DHL-11, isolated from Munronia henryi, binds a non-catalytic pocket on IMPDH2 to trigger its degradation, reduce GMP synthesis, elevate ROS and DNA damage, and induce G2/M arrest and apoptosis in triple-negative breast cancer cells. The compound also suppressed growth and metastasis in patient-derived organoids and in vivo TNBC models, marking it as a promising IMPDH2-targeted therapy for IMPDH2-positive tumors.