[CAS NO. 338967-87-6]  Mdivi-1

Mdivi-1 is a cell-permeable quinazolinone compound that inhibits yeast (Dnm1) and mammalian (Drp1) division DRPs (dynamin-related GTPases) and effectively induces mitochondrial fusion into net-like structures in a reversible manner. Cell-free studies indicate that mdivi-1 blocks Dnm1 ATPase activity (IC50<10 μM) and self-assembly by an allosteric modulation-based mechanism. Mdivi-1 is shown to effectively suppress STS- as well as C8-Bid-induced MOMP (Mitochondrial Outer Membrane Permeabilization) in HeLa cultures and in cell-free murine liver mitochondria preparations, respectively, as assessed by cytochrome C release. In cells, mdivi-1 retards apoptosis by inhibiting mitochondrial outer membrane permeabilization. In principle, mivi-1 represents a class of therapeutics for stroke, myocardial infarction, and neurodegenerative diseases.