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Abstract
α-Synuclein is a neuronal protein involved in synaptic vesicle trafficking. During the course of Parkinson's disease, it aggregates, forming amyloid fibrils that accumulate in the midbrain. This pathological fibrillization process is strongly modulated by physiological interactions of α-synuclein with lipid membranes. However, the detailed mechanism of this effect remains unclear. In this work, we used environment-sensitive fluorescent dyes to study the influence of model lipid membranes on the kinetics of α-synuclein fibrillization. We observed that formation of the fibrils from α-synuclein monomers is strongly delayed even by small amounts of lipids. Furthermore, we found that membrane-bound α-synuclein monomers are not involved in fibril elongation. Hence, presence of lipids slows down fibril growth proportionally to the fraction of membrane-bound protein.
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Affiliation(s)
- Andrii S. Kurochka
- Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague 166 10, Czech Republic
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - Dmytro A. Yushchenko
- Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague 166 10, Czech Republic
- Miltenyi Biotec GmbH, Bergisch Gladbach 51429, Germany
| | - Petr Bouř
- Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague 166 10, Czech Republic
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - Volodymyr V. Shvadchak
- Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague 166 10, Czech Republic
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Kyriukha YA, Afitska K, Kurochka AS, Sachan S, Galkin M, Yushchenko DA, Shvadchak VV. α-Synuclein Dimers as Potent Inhibitors of Fibrillization. J Med Chem 2019; 62:10342-10351. [DOI: 10.1021/acs.jmedchem.9b01400] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yevhenii A. Kyriukha
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Kseniia Afitska
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 6, 12843 Prague, Czech Republic
| | - Andrii S. Kurochka
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Shubhra Sachan
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Maksym Galkin
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 6, 12843 Prague, Czech Republic
| | - Dmytro A. Yushchenko
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
- Group of Bioconjugation Chemistry, Miltenyi Biotec GmbH, Friedrich-Ebert-Straße 68, D-51429 Bergisch Gladbach, Germany
| | - Volodymyr V. Shvadchak
- Laboratory of Chemical Biology, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
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