Isolation, in vitro evaluation and molecular docking of acetylcholinesterase inhibitors from South African Amaryllidaceae.

Amaryllidaceae / chemistry Cholinesterase Inhibitors / chemistry Ligands Molecular Docking Simulation Molecular Structure Phytochemicals / chemistry Plant Extracts / chemistry Plant Roots / chemistry South Africa
Acetylcholinesterase inhibition Alzheimer's disease Amaryllidaceae Galanthamine Molecular docking

Journal

Fitoterapia
ISSN: 1873-6971
Titre abrégé: Fitoterapia
Pays: Netherlands
ID NLM: 16930290R

Informations de publication

Date de publication:
Oct 2020
Historique:
received: 08 05 2020
revised: 27 05 2020
accepted: 27 05 2020
pubmed: 2 6 2020
medline: 23 3 2021
entrez: 2 6 2020
Statut: ppublish

Résumé

Inhibition of acetylcholinesterase (AChE) is considered a promising strategy for the treatment of Alzheimer's disease (AD) and dementia. Members of the Amaryllidaceae family are well known for their pharmacologically active alkaloids, including galanthamine, which is used to treat AD. The aim of this study was to evaluate the potential of South African Amaryllidaceae species to inhibit AChE, to isolate the active compounds, and probe their ability to bind the enzyme using molecular docking. The AChE inhibitory activity of extracts of 41 samples, representing 14 genera and 28 species, as well as isolated compounds, were evaluated in vitro using a qualitative thin layer chromatography (TLC) bio-autography assay and Ellman's method in a quantitative 96-well microplate assay. Targeted isolation of compounds was achieved with the aid of preparative-high perfomance liquid chromatography-mass spectrometry. The structures of the isolates were elucidated using nuclear magnetic resonance spectrocopy, and were docked into the active site of AChE to rationalise their biological activities. The most active species were found to be Amaryllis belladonna L (IC

Identifiants

DOI: 10.1016/j.fitote.2020.104650 PMID: 32479767
pubmed: 32479767
pii: S0367-326X(20)30232-X
doi: 10.1016/j.fitote.2020.104650
pii:
doi:

Substances chimiques

Cholinesterase Inhibitors 0
Ligands 0
Phytochemicals 0
Plant Extracts 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

104650

Informations de copyright

Copyright © 2020 Elsevier B.V. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of Competing Interest The authors declare no conflict of interest.

Auteurs

Mary Nokuthula Sibanyoni (MN)

Department of Pharmaceutical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa.

Sushil Kumar Chaudhary (SK)

Department of Pharmaceutical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa.

Weiyang Chen (W)

Department of Pharmaceutical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa.

Hamid-Reza Adhami (HR)

Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.

Sandra Combrinck (S)

Department of Pharmaceutical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa; SAMRC Herbal Drugs Research Unit, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa.

Vinesh Maharaj (V)

Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa.

Daniela Schuster (D)

Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University of Salzburg, Salzburg, Austria.

Alvaro Viljoen (A)

Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; SAMRC Herbal Drugs Research Unit, Faculty of Science, Tshwane University of Technology, Pretoria, South Africa. Electronic address: viljoenam@tut.ac.za.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Viridiplantae › Streptophyta › Embryophyta › Tracheobionta › Magnoliopsida › Lilianae › Asparagales › Amaryllidaceae › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Actions chimiques et utilisations › Actions pharmacologiques › Effets physiologiques des médicaments › Agents neuromédiateurs › Agents cholinergiques › Anticholinestérasiques › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Actions chimiques et utilisations › Utilisations spécialisées de produits chimiques › Produits chimiques de laboratoire › Ligands › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Sciences de l'information › Méthodologies informatiques › Simulation numérique › Simulation de docking moléculaire › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Phénomènes chimiques › Structure moléculaire › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Facteurs biologiques › Composés phytochimiques › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Préparations pharmaceutiques › Extraits de plantes › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Structures de plante › Racines de plante › Isolation, in vitro evaluation and molecular...
questionsmedicales.fr › Régions géographiques › Afrique › Afrique subsaharienne › Afrique australe › République d'Afrique du Sud › Isolation, in vitro evaluation and molecular...