HUP-55

HUP-55 is a prolyl endopeptidase inhibitor (IC50 = 5 nM) . HUP-55 reduces the dimerization of α-synuclein in Neuro2a cells and induces autophagy (Autophagy) in HEK293 cells. It also decreases the increase in reactive oxygen species (ROS) production induced by hydrogen peroxide in SH-SY5Y cells at a concentration of 10 μM. In a mouse Parkinson’s disease model, HUP-55 (10 mg/kg) improves motor function (reduces the use frequency of the impaired paw) and decreases the levels of harmful oligomers of α-synuclein in the striatum caused by overexpression of α-synuclein[1].