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
Endoplasmic reticulum (ER) stress, caused by accumulation of misfolded proteins and a disruption of calcium homeostasis, has been linked to several neuronal diseases including, Parkinson's, Alzheimer's, and prion diseases. A screen for protective activity against ER stress-dependent cell death identified termitomycamides, extracts from the fruiting bodies of T. titanicus, a notably large edible mushroom that is cultivated symbiotically in the nests of termites Termitomycamide B is a fatty acid isolated from T. titanicus that at a dose of 0.1 μg/ml protects against ER stress-dependent cell death in Neuro2a cells induced by tunicamycin.
Chloroguanabenz is an antiprion agent and a derivative of the α2-adrenergic receptor agonist guanabenz . It inhibits prion formation in yeast and mammalian cell-based assays. Chloroguanabenz reduces the levels of both soluble and aggregated forms of the truncated Huntingtin derivative Htt48 in an HEK293T cellular model of Huntington's disease.