Cited by 26Alzheimer's disease research and treatmentsCholinesterase and Neurodegenerative DiseasesDementia and Cognitive Impairment Research

Structure-Activity Relationship of Clovamide and its Related Compounds for the Inhibition of Amyloid β Aggregation

Tsunoda, Tatsuhiko, Takase, Mio, Shigemori, Hideyuki·2018·Bioorganic & Medicinal Chemistry

Abstract

Alzheimer's disease (AD), a neurodegenerative disorder, is characterized by aggregation of amyloid β-protein (Aβ). Aβ aggregates through β-sheet formation and induces cytotoxicity against neuronal cells. Inhibition of Aβ aggregation by naturally occurring compounds is thus a promising strategy for the treatment of AD. We have already reported that caffeoylquinic acids and phenylethanoid glycosides, which possess two or more catechol moieties, strongly inhibited Aβ aggregation. Clovamide (1) containing two catechol moieties, isolated from cacao beans (Theobroma cacao L.), is believed to exhibit preventive effects on Aβ aggregation. To investigate the structure-activity relationship of clovamide (1) for the inhibition of Aβ aggregation, we synthesized 1 and related compounds 2-11 through reaction between l-DOPA, d-DOPA, l-tyrosine, or l-phenylalanine and caffeic acid, p-coumaric acid, or cinnamic acid, and compounds 12 and 13 were derived from 1. Among tested compounds 1-13, those containing one or two catechol moieties exhibited potent anti-aggregation activity, whereas the non-catechol-type related compounds showed little or no activity. This suggests that at least one catechol moiety is essential for inhibition of Aβ42 aggregation, and this activity increases depending on the number of catechol moieties. Consequently, clovamide (1) and its related compounds may be a promising therapeutic option for inhibiting Aβ-mediated pathology in AD.

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Crossref · 10.1016/j.bmc.2018.04.044

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Authors
Tsunoda, T., Takase, M., & Shigemori, H.
Affiliations
University of Tsukuba (JP)
Corresponding author
Shigemori, Hideyuki
Venue
Bioorganic & Medicinal Chemistry
Publisher
Elsevier BV
Published
2018-07
Volume
26
Issue
12
Pages
3202-3209
ISSN
0968-0896 (ISSN-L)
OpenAlex
W2801057222
Cited by
26
References
24
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 3 · 2022: 4 · 2021: 6 · 2020: 2 · 2019: 3 · 2018: 1
FWCI
2.06
Type
journal article
Language
en
Open access
closed
Locations
  • Bioorganic & Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Kyoto University
  • Japan Society for the Promotion of Science (JP24580156)
  • Nagoya University
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
amyloid beta aggregation inhibition, Alzheimer's disease, structure-activity relationship, catechol moiety, caffeoylquinic acids, phenylethanoid glycosides, Theobroma cacao, cocoa beans, β-sheet formation, anti-aggregation activity, caffeic acid, p-coumaric acid, cinnamic acid, L-DOPA, tyrosine, L-phenylalanine
MeSH terms
Alzheimer Disease, Cacao, Catechols, Cinnamates, Dihydroxyphenylalanine, Humans, Structure-Activity Relationship, Tyrosine, Amyloid beta-Peptides, Inhibitory Concentration 50

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