Cited by 22Alzheimer's disease research and treatmentsCoffee research and impactsMedicinal Plants and Neuroprotection

Roasted Coffee Reduces β‐Amyloid Production by Increasing Proteasomal β‐Secretase Degradation in Human Neuroblastoma SH‐SY5Y Cells

Fukuyama, Kazuya, Kakio, Shota, Nakazawa, Yosuke, Kobata, Kenji, Funakoshi‐Tago, Megumi, Suzuki, Toshiharu, Tamura, Hiroomi·2018·Molecular Nutrition & Food Research

Abstract

SCOPE: Epidemiological studies have shown that coffee consumption may be associated with a lower risk of developing several neurological disorders, including Alzheimer's disease (AD). Caffeine is a prominent candidate component underlying the preventive effects of coffee; however, the contribution of other constituents is unclear. To clarify this issue, the effect of roasting coffee beans on β-secretase (BACE1) expression in human neuroblastoma SH-SY5Y cells is investigated. METHODS AND RESULTS: Coffee (2%) reduces Aβ accumulation in culture medium to 80% of control levels after 24 h. Accordingly, BACE1 expression is decreased to 70% of control levels at 12 h. Experiments using cycloheximide and MG132, a proteasome inhibitor, reveal that coffee enhanced BACE1 degradation through activation of proteasomal activity. Furthermore, coffee activates cAMP-dependent protein kinase, and consequently, phosphorylation of a serine residue of proteasome 26S subunit, non-ATPase 11 (PSMD11). Pyrocatechol, a strong antioxidant known as catechol or 1,2-dihydroxybenzene, produced from chlorogenic acid during roasting, also reduces BACE1 expression by activation of proteasomal activity. Furthermore, pyrocatechol reduces Aβ production in SH-SY5Y cells. CONCLUSION: The data suggest that the roasting process may be crucial for the protective effects of coffee consumption in AD.

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Crossref · 10.1002/mnfr.201800238

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Authors
Fukuyama, K., Kakio, S., Nakazawa, Y., Kobata, K., Funakoshi‐Tago, M., Suzuki, T., & Tamura, H.
Affiliations
  • Keio University (JP)
  • Josai University (JP)
  • Hokkaido University (JP)
Corresponding author
Tamura, Hiroomi
Venue
Molecular Nutrition & Food Research
Publisher
Wiley
Published
2018-09-09
Volume
62
Issue
21
Pages
e1800238-e1800238
ISSN
  • 1613-4125 (ISSN-L)
  • 1613-4133
OpenAlex
W2888681038
Cited by
22
References
25
Citations by year
2025: 1 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 3
FWCI
2.23
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Nutrition & Food Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (15K00883)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Pharmacology › Coffee research and impacts
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
Keywords
coffee roasting, amyloid-beta, BACE1, proteasomal degradation, Alzheimer's disease, catechol, chlorogenic acid, protein kinase A, neuroprotection, SH-SY5Y cells, coffee constituents
MeSH terms
Alzheimer Disease, Catechols, Coffee, Food Handling, Humans, Neuroblastoma, Plant Extracts, Amyloid beta-Peptides, Aspartic Acid Endopeptidases, Cyclic AMP-Dependent Protein Kinases, Cell Line, Tumor, Proteasome Endopeptidase Complex, Amyloid Precursor Protein Secretases, Proteolysis

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