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Plain Language Summary of PublicationOpen Accesscc iconby iconnc iconnd icon

The amyloid-β pathway in Alzheimer's disease: a plain language summary

    Harald Hampel

    Eisai Inc., Alzheimer's Disease & Brain Health, Nutley, NJ, USA

    ,
    Yan Hu

    Eisai Inc., Alzheimer's Disease & Brain Health, Nutley, NJ, USA

    ,
    John Hardy

    UK Dementia Research Institute at UCL & Department of Neurodegenerative Disease, UCL Institute of Neurology, University College London, London, UK

    ,
    Kaj Blennow

    Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden

    Institute of Neuroscience & Physiology, Department of Psychiatry & Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden

    ,
    Christopher Chen

    Memory Aging & Cognition Centre, Departments of Pharmacology & Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore

    ,
    George Perry

    Department of Biology & Neurosciences Institute, University of Texas at San Antonio, San Antonio, TX, USA

    ,
    Seung Hyun Kim

    Department of Neurology, College of Medicine, Hanyang University, Seoul, Republic of Korea; Cell Therapy Center, Hanyang University Hospital, Seoul, Republic of Korea

    ,
    Victor L Villemagne

    Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

    ,
    Paul Aisen

    University of Southern California Alzheimer's Therapeutic Research Institute, San Diego, CA, USA

    ,
    Michele Vendruscolo

    Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, UK

    ,
    Takeshi Iwatsubo

    Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

    ,
    Colin L Masters

    Florey Institute & The University of Melbourne, Parkville, VIC, Australia

    ,
    Min Cho

    Eisai Inc., Alzheimer's Disease & Brain Health, Nutley, NJ, USA

    ,
    Lars Lannfelt

    Uppsala University, Department of Public Health/Geriatrics, Uppsala, Sweden

    BioArctic AB, Stockholm, Sweden

    ,
    Jeffrey L Cummings

    Chambers-Grundy Center for Transformative Neuroscience, Department of Brain Health, School of Integrated Health Sciences, University of Nevada Las Vegas, Las Vegas, NV, USA

    &
    Andrea Vergallo

    Eisai Inc., Alzheimer's Disease & Brain Health, Nutley, NJ, USA

    Published Online:https://doi.org/10.2217/nmt-2022-0037

    Abstract

    What is this summary about?

    This plain language summary of an article published in Molecular Psychiatry, reviews the evidence supporting the role of the amyloid-β (Aβ) pathway and its dysregulation in Alzheimer's disease (AD), and highlights the rationale for drugs targeting the Aβ pathway in the early stages of the disease.

    Why is this important?

    Aβ is a protein fragment (or peptide) that exists in several forms distinguished by their size, shape/structure, degree of solubility and disease relevance. The accumulation of Aβ plaques is a hallmark of AD. However, smaller, soluble aggregates of Aβ – including Aβ protofibrils – also play a role in the disease. Because Aβ-related disease mechanisms are complex, the diagnosis, treatment and management of AD should be reflective of and guided by up-to-date scientific knowledge and research findings in this area. This article describes the Aβ protein and its role in AD, summarizing the evidence showing that altered Aβ clearance from the brain may lead to the imbalance, toxic buildup and misfolding of the protein – triggering a cascade of cellular, molecular and systematic events that ultimately lead to AD.

    What are the key takeaways?

    The physiological balance of brain Aβ levels in the context of AD is complex. Despite many unanswered questions, mounting evidence indicates that Aβ has a central role in driving AD progression. A better understanding of the Aβ pathway biology will help identify the best therapeutic targets for AD and inform treatment approaches.

    To read the full Plain Language Summary of this article, click here to view the PDF.

    Link to original article here

    Acknowledgments

    Acknowledgments Medical writing support was provided by Jen Ciarochi, PhD, of MediTech Media, LTD, and was funded by Eisai Inc.

    Financial & competing interests disclosure

    Financial & competing interests disclosure Full author disclosures can be found in the original article.

    Open access

    This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/