A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease

Therapeutic options for Alzheimer&#8217;s disease, the most common form of dementia, are currently restricted to palliative treatments. The glycosaminoglycan heparin, widely used as a clinical anticoagulant, has previously been shown to inhibit the Alzheimer&#8217;s disease-relevant &#94...

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Main Authors: Courtney J. Mycroft-West, Lynsay C. Cooper, Anthony J. Devlin, Patricia Procter, Scott E. Guimond, Marco Guerrini, David G. Fernig, Marcelo A. Lima, Edwin A. Yates, Mark A. Skidmore
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Marine Drugs
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Online Access:https://www.mdpi.com/1660-3397/17/5/293
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author Courtney J. Mycroft-West
Lynsay C. Cooper
Anthony J. Devlin
Patricia Procter
Scott E. Guimond
Marco Guerrini
David G. Fernig
Marcelo A. Lima
Edwin A. Yates
Mark A. Skidmore
author_facet Courtney J. Mycroft-West
Lynsay C. Cooper
Anthony J. Devlin
Patricia Procter
Scott E. Guimond
Marco Guerrini
David G. Fernig
Marcelo A. Lima
Edwin A. Yates
Mark A. Skidmore
author_sort Courtney J. Mycroft-West
collection DOAJ
description Therapeutic options for Alzheimer&#8217;s disease, the most common form of dementia, are currently restricted to palliative treatments. The glycosaminoglycan heparin, widely used as a clinical anticoagulant, has previously been shown to inhibit the Alzheimer&#8217;s disease-relevant &#946;-secretase 1 (BACE1). Despite this, the deployment of pharmaceutical heparin for the treatment of Alzheimer&#8217;s disease is largely precluded by its potent anticoagulant activity. Furthermore, ongoing concerns regarding the use of mammalian-sourced heparins, primarily due to prion diseases and religious beliefs hinder the deployment of alternative heparin-based therapeutics. A marine-derived, heparan sulphate-containing glycosaminoglycan extract, isolated from the crab <i>Portunus pelagicus</i>, was identified to inhibit human BACE1 with comparable bioactivity to that of mammalian heparin (IC<sub>50</sub> = 1.85 &#956;g mL<sup>&#8722;1</sup> (R<sup>2</sup> = 0.94) and 2.43 &#956;g mL<sup>&#8722;1</sup> (R<sup>2</sup> = 0.93), respectively), while possessing highly attenuated anticoagulant activities. The results from several structural techniques suggest that the interactions between BACE1 and the extract from <i>P. pelagicus</i> are complex and distinct from those of heparin.
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spelling doaj.art-9b0212c58018467d8dc0b138c84699872022-12-22T02:06:52ZengMDPI AGMarine Drugs1660-33972019-05-0117529310.3390/md17050293md17050293A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s DiseaseCourtney J. Mycroft-West0Lynsay C. Cooper1Anthony J. Devlin2Patricia Procter3Scott E. Guimond4Marco Guerrini5David G. Fernig6Marcelo A. Lima7Edwin A. Yates8Mark A. Skidmore9Molecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKIstituto di Ricerche Chimiche e Biochimiche G. Ronzoni, Via G. Colombo 81, 20133 Milan, ItalySchool of Biological Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKMolecular &amp; Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UKTherapeutic options for Alzheimer&#8217;s disease, the most common form of dementia, are currently restricted to palliative treatments. The glycosaminoglycan heparin, widely used as a clinical anticoagulant, has previously been shown to inhibit the Alzheimer&#8217;s disease-relevant &#946;-secretase 1 (BACE1). Despite this, the deployment of pharmaceutical heparin for the treatment of Alzheimer&#8217;s disease is largely precluded by its potent anticoagulant activity. Furthermore, ongoing concerns regarding the use of mammalian-sourced heparins, primarily due to prion diseases and religious beliefs hinder the deployment of alternative heparin-based therapeutics. A marine-derived, heparan sulphate-containing glycosaminoglycan extract, isolated from the crab <i>Portunus pelagicus</i>, was identified to inhibit human BACE1 with comparable bioactivity to that of mammalian heparin (IC<sub>50</sub> = 1.85 &#956;g mL<sup>&#8722;1</sup> (R<sup>2</sup> = 0.94) and 2.43 &#956;g mL<sup>&#8722;1</sup> (R<sup>2</sup> = 0.93), respectively), while possessing highly attenuated anticoagulant activities. The results from several structural techniques suggest that the interactions between BACE1 and the extract from <i>P. pelagicus</i> are complex and distinct from those of heparin.https://www.mdpi.com/1660-3397/17/5/293Alzheimer’s diseaseamyloid-βBACE1β-secretaseglycosaminoglycanheparan sulphateheparin<i>Portunus pelagicus</i>
spellingShingle Courtney J. Mycroft-West
Lynsay C. Cooper
Anthony J. Devlin
Patricia Procter
Scott E. Guimond
Marco Guerrini
David G. Fernig
Marcelo A. Lima
Edwin A. Yates
Mark A. Skidmore
A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease
Marine Drugs
Alzheimer’s disease
amyloid-β
BACE1
β-secretase
glycosaminoglycan
heparan sulphate
heparin
<i>Portunus pelagicus</i>
title A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease
title_full A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease
title_fullStr A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease
title_full_unstemmed A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease
title_short A Glycosaminoglycan Extract from <i>Portunus pelagicus</i> Inhibits BACE1, the β Secretase Implicated in Alzheimer’s Disease
title_sort glycosaminoglycan extract from i portunus pelagicus i inhibits bace1 the β secretase implicated in alzheimer s disease
topic Alzheimer’s disease
amyloid-β
BACE1
β-secretase
glycosaminoglycan
heparan sulphate
heparin
<i>Portunus pelagicus</i>
url https://www.mdpi.com/1660-3397/17/5/293
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