Quinacrine is a compound that is commonly used as an anti-protozoal agent. It inhibits voltage-dependent sodium channels (IC50: 3.3 μM) and suppresses aldehyde oxidase (IC50: 3.3 μM). Quinacrine prevents misfolding of prion protein (EC50: 0.3 μM). As an e
Quinacrine is a compound with multiple actions that is commonly used as an anti-protozoal agent. It has also been shown to be a highly potent autophagy inhibitor, although the dose required to achieve this effect is considerably cytotoxic (LD50 = 2.5 μM). Quinacrine analog 34 is a derivative of quinacrine that was designed with an improved cell viability profile (LD50 = 27 μM) to inhibit autophagy. At a minimum concentration of 0.5 μM, this compound has been shown to increase the protein levels of the autophagy biomarker LC3-II and to induce lysosome deacidification.