Cited by 804Alzheimer's disease research and treatmentsCholesterol and Lipid MetabolismDementia and Cognitive Impairment Research

Low cholesterol stimulates the nonamyloidogenic pathway by its effect on the α-secretase ADAM 10

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Kojro, Elzbieta, Gimpl, Gerald, Lammich, Sven, März, Winfried, Fahrenholz, Falk·2001·Proceedings of the National Academy of Sciences

Abstract

Biochemical, epidemiological, and genetic findings demonstrate a link between cholesterol levels, processing of the amyloid precursor protein (APP), and Alzheimer's disease. In the present report, we identify the α-secretase ADAM 10 ( a d isintegrin a nd m etalloprotease) as a major target of the cholesterol effects on APP metabolism. Treatment of various peripheral and neural cell lines with either the cholesterol-extracting agent methyl-β-cyclodextrin or the hydroxymethyl glutaryl-CoA reductase inhibitor lovastatin resulted in a drastic increase of secreted α-secretase cleaved soluble APP. This strong stimulatory effect was in the range obtained with phorbol esters and was further increased in cells overexpressing ADAM 10. In cells overexpressing APP, the increase of α-secretase activity resulted in a decreased secretion of Aβ peptides. Several mechanisms were elucidated as being the basis of enhanced α-secretase activity: increased membrane fluidity and impaired internalization of APP were responsible for the effect observed with methyl-β-cyclodextrin; treatment with lovastatin resulted in higher expression of the α-secretase ADAM 10. Our results demonstrate that cholesterol reduction promotes the nonamyloidogenic α-secretase pathway and the formation of neuroprotective α-secretase cleaved soluble APP by several mechanisms and suggest approaches to prevention of or therapy for Alzheimer's disease.

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  • APOE isoforms likely influence Aβ production by modulating lipid metabolism and the lipid composition of cellular membranes, with APOE4 promoting amyloidogenic APP cleavage and Aβ production more than APOE3.

    “APOE isoforms likely influence Aβ production by modulating lipid metabolism and the lipid composition of cellular membranes, with APOE4 promoting amyloidogenic APP cleavage and Aβ production more than APOE3 [8–10].”

    From Analysis of early effects of human APOE isoforms on Alzheimer’s disease and type III hyperlipoproteinemia pathways using knock-in rat models with humanized APP and APOE (2024) · cites this paper as [8]

    The Discussion reports that ApoE4 is a weaker lipid acceptor than ApoE3 and suggests that its lower cholesterol efflux reduces nonamyloidogenic α-secretase activity. It also reports that cholesterol depletion reduces Aβ secretion, but does not directly show that ApoE4 causes more amyloidogenic APP cleavage or Aβ production than ApoE3. (LLM, conf=0.84)

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  • APOE modulates APP metabolism in an isoform-dependent manner through distinct mechanisms, including influencing APP processing via effects on lipid metabolism and modulating Aβ clearance and aggregation via the formation of APOE-Aβ complexes.

    “APOE modulates APP metabolism in an isoform-dependent manner through distinct mechanisms: 1) influencing APP processing via effects on lipid metabolism [8–10], and 2) modulating Aβ clearance and aggregation via the formation of APOE-Aβ complexes [11, 12].”

    From Analysis of early effects of human APOE isoforms on Alzheimer’s disease and type III hyperlipoproteinemia pathways using knock-in rat models with humanized APP and APOE (2024) · cites this paper as [8]

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Research works printed but not linked: 1

  1. [29]Subtil, A., Gaidarow, I., Kobylarz, K., Lampson, M. A., Keen, J. H. & McGraw, T. E. (1999) Proc. Natl. Acad. Sci. USA 96, 6775-6780.

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Authors
Kojro, E., Gimpl, G., Lammich, S., März, W., & Fahrenholz, F.
Affiliations
  • Institute of Biochemistry, Johannes Gutenberg University, Becherweg 30, D-55128 Mainz, Germany; and Department of Clinical Chemistry, Albert Ludwigs University, Hugstetterstrasse 55, D-79106 Freiburg, Germany
  • University of Freiburg (DE)
Venue
Proceedings of the National Academy of Sciences
Published
2001-04-17
Volume
98
Issue
10
Pages
5815-5820
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2009111659
Cited by
804
References
51
Citations by year
2026: 6 · 2025: 10 · 2024: 17 · 2023: 13 · 2022: 22 · 2021: 18 · 2020: 23 · 2019: 17 · 2018: 21 · 2017: 23 · 2016: 23 · 2015: 20 · 2014: 32 · 2013: 28 · 2012: 36
FWCI
32.48
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • FreiDok plus (Universitätsbibliothek Freiburg) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
cholesterol, ADAM10, alpha-secretase, amyloid precursor protein, non-amyloidogenic pathway, Alzheimer's disease, amyloid-beta, methyl-β-cyclodextrin, lovastatin, membrane fluidity, phorbol ester
MeSH terms
ADAM10 Protein, Anticholesteremic Agents, Cell Compartmentation, Cell Membrane, Cholesterol, Endocytosis, Humans, Lovastatin, Membrane Fluidity, Membrane Proteins, Metalloendopeptidases, Amyloid beta-Protein Precursor, Hydroxymethylglutaryl-CoA Reductase Inhibitors, ADAM Proteins, Amyloid Precursor Protein Secretases

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