PARP1-IN-58

PARP1-IN-58 is a ROS-responsive prodrug constructed based on a natural stilbene scaffold, and its active parent nucleus 24c acts as a selective PARP-1 inhibitor. PARP1-IN-58 only hydrolyzes to release the active parent compound in the high-ROS microenvironment of tumors; the active parent compound competitively binds to PARP-1 and blocks DNA single-strand damage repair, upregulates intracellular ROS levels, reduces mitochondrial membrane potential, and thereby induces cell cycle arrest and mitochondria-dependent apoptosis. PARP1-IN-58 exerts potent proliferation-inhibiting effects on BRCA-deficient breast cancer cells under simulated tumor oxidative stress conditions, and exhibits tumor growth inhibitory activity in breast cancer xenograft models. PARP1-IN-58 can be used in cancer-related research^[1].