title: The use of nanopore analysis for discovering drugs which bind to α-synuclein for treatment of Parkinson's disease.
abstract: A major feature of Parkinson's disease is the formation of Lewy bodies in dopaminergic neurons which consist of misfolded α-synuclein. The binding of natural products to α-synuclein was evaluated by nanopore analysis and caffeine, curcumin, and nicotine all caused large conformational changes which may be related to their known neuroprotective effect in Parkinson's disease. The binding of the stereoisomers of nicotine were also studied by ITC, CD and NMR. It is proposed that (-)-nicotine causes the folding of α-synuclein into a loop with interaction between the N- and C-termini. For (+)-nicotine the binding is weaker and mainly involves residues in the N-terminus. Caffeine and nicotine can bind to α-synuclein simultaneously and may provide lead structures for the development of other compounds for the treatment of PD.
authors: Department of Biochemistry, 107 Wiggins Road, University of Saskatchewan, Saskatoon, Canada S7N 0W0.
authors: Omid
authors: O
authors: Tavassoly
authors: Department of Biochemistry, 107 Wiggins Road, University of Saskatchewan, Saskatoon, Canada S7N 0W0.
authors: Joe
authors: J
authors: Kakish
authors: Department of Biochemistry, 107 Wiggins Road, University of Saskatchewan, Saskatoon, Canada S7N 0W0.
authors: Sergiy
authors: S
authors: Nokhrin
authors: Department of Biochemistry, 107 Wiggins Road, University of Saskatchewan, Saskatoon, Canada S7N 0W0.
authors: Oleg
authors: O
authors: Dmitriev
authors: Department of Biochemistry, 107 Wiggins Road, University of Saskatchewan, Saskatoon, Canada S7N 0W0. Electronic address: jeremy.lee@usask.ca.
authors: Jeremy S
authors: JS
authors: Lee
mesh_terms: D001665:Binding Sites; D001688:Biological Products / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism* / Q000627:therapeutic use; D002110:Caffeine / Q000737:chemistry / Q000378:metabolism; D002151:Calorimetry; D055808:Drug Discovery / Q000379:methods*; D006801:Humans; D008968:Molecular Conformation; D058608:Nanopores; D009538:Nicotine / Q000031:analogs & derivatives / Q000737:chemistry / Q000378:metabolism; D019906:Nuclear Magnetic Resonance, Biomolecular; D010300:Parkinson Disease / Q000188:drug therapy*; D017510:Protein Folding; D013329:Structure-Activity Relationship; D051844:alpha-Synuclein / Q000037:antagonists & inhibitors / Q000378:metabolism*
chemical_list: D001688:Biological Products; D051844:alpha-Synuclein; D002110:Caffeine; D009538:Nicotine
keywords: Caffeine; Curcumin; Induced folding; Intrinsically disordered protein; Nanopore analysis; Nicotine; Parkinson's disease; α-Synuclein