Inhibitors of α-Synuclein Fibrillation and Oligomer Toxicity in Rosa damascena: The All-Pervading Powers of Flavonoids and Phenolic Glycosides

A - Papers appearing in refereed journals

Eskandari, H., Ghanadian, M., Noleto-Dias, C., Lomax, C., Tawfike, A., Christiansen, G., Sutherland, D. S., Ward, J. L., Mohammad-Beigi, H. and Otzen, D. E. 2020. Inhibitors of α-Synuclein Fibrillation and Oligomer Toxicity in Rosa damascena: The All-Pervading Powers of Flavonoids and Phenolic Glycosides. ACS Chemical Neuroscience. 11 (19), pp. 3161-3173. https://doi.org/10.1021/acschemneuro.0c00528

AuthorsEskandari, H., Ghanadian, M., Noleto-Dias, C., Lomax, C., Tawfike, A., Christiansen, G., Sutherland, D. S., Ward, J. L., Mohammad-Beigi, H. and Otzen, D. E.
Abstract

There is an intense search for natural compounds that can inhibit the oligomerization and fibrillation of α-synuclein (α-Syn), whose aggregation is key to the development of Parkinson’s disease (PD). Rosa damascena is a medicinal herb widely used in Middle Eastern food, ceremonies, and perfumes. The herb is known to contain many different polyphenols. Here we investigated the existence of α-Syn fibrillation inhibitors in R. damascena extract. Different HPLC fractions of the extract were assessed in α-Syn fibrillation and toxicity assays. The most active fractions led to the formation of more α-Syn oligomers but with less toxicity to SH-SY5Y cells, according to MTT and LDH assays. LC–MS analysis identified gallic acid, kaempferol 3-glucoside, kaempferol-3-O-β-rutinoside, and quercetin which were subsequently shown to be strong α-Syn fibrillation inhibitors. Our results highlight the benefits of R. damascena extract to combat PD at the population level.

Keywordsα-Synuclein ; Alpha-Synuclein; Amyloid; Cell toxicity; Neurodegeneration; Oligomerization; Parkinson’s disease; Phenolics; Plant; Sugars; Rosa damascena
Year of Publication2020
JournalACS Chemical Neuroscience
Journal citation11 (19), pp. 3161-3173
Digital Object Identifier (DOI)https://doi.org/10.1021/acschemneuro.0c00528
Web address (URL)https://pubs.acs.org/doi/10.1021/acschemneuro.0c00528
Open accessPublished as non-open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeTPM - Tailoring Plant Metabolism - Work package 2 (WP2) - Designer Willows: high value phenolic glycosides for health and industry
Output statusPublished
Publication dates
Online04 Sep 2020

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