Cited by 101Medicinal Plants and NeuroprotectionAlzheimer's disease research and treatmentsGinkgo biloba and Cashew Applications

Caffeoylquinic Acids in Centella asiatica Protect against Amyloid-β Toxicity

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Gray, Nora E., Morré, Jeff, Kelley, Jeremiah, Maier, Claudia S., Stevens, Jan F., Quinn, Joseph F., Soumyanath, Amala·2014·Journal of Alzheimer s Disease

Abstract

The accumulation of amyloid-β (Aβ) is a hallmark of Alzheimer's disease and is known to result in neurotoxicity both in vivo and in vitro. We previously demonstrated that treatment with the water extract of Centella asiatica (CAW) improves learning and memory deficits in Tg2576 mice, an animal model of Aβ accumulation. However the active compounds in CAW remain unknown. Here we used two in vitro models of Aβ toxicity to confirm this neuroprotective effect and identify several active constituents of the CAW extract. CAW reduced Aβ-induced cell death and attenuated Aβ-induced changes in tau expression and phosphorylation in both the MC65 and SH-SY5Y neuroblastoma cell lines. We confirmed and quantified the presence of several mono- and dicaffeoylquinic acids (CQAs) in CAW using chromatographic separation coupled to mass spectrometry and ultraviolet spectroscopy. Multiple dicaffeoylquinic acids showed efficacy in protecting MC65 cells against Aβ-induced cytotoxicity. Isochlorogenic acid A and 1,5-dicaffeoylquinic acid were found to be the most abundant CQAs in CAW, and the most active in protecting MC65 cells from Aβ-induced cell death. Both compounds showed neuroprotective activity in MC65 and SH-SY5Y cells at concentrations comparable to their levels in CAW. Each compound not only mitigated Aβ-induced cell death, but was able to attenuate Aβ-induced alterations in tau expression and phosphorylation in both cell lines, as seen with CAW. These data suggest that CQAs are active neuroprotective components in CAW, and therefore are important markers for future studies on CAW standardization, bioavailability, and dosing.

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Authors
Gray, N. E., Morré, J., Kelley, J., Maier, C. S., Stevens, J. F., Quinn, J. F., & Soumyanath, A.
Affiliations
  • Oregon Health & Science University (US)
  • Department of Chemistry, Oregon State University, Corvallis, OR, USA
  • Oregon State University (US)
Corresponding author
Soumyanath, Amala
Venue
Journal of Alzheimer s Disease
Published
2014-03-31
Volume
40
Issue
2
Pages
359-373
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W1554984728
Cited by
101
References
65
Citations by year
2026: 6 · 2025: 6 · 2024: 12 · 2023: 12 · 2022: 6 · 2021: 12 · 2020: 14 · 2019: 7 · 2018: 4 · 2017: 9 · 2016: 9 · 2015: 4
FWCI
15.77
Type
journal article
Language
en
Open access
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • Oregon State University
  • National Institutes of Health
  • National Institute on Aging (5 P30 AG008017 24, P30AG008017, 3P30 AG000817 24 S1)
  • National Center for Complementary and Alternative Medicine
  • National Institute of Environmental Health Sciences (P30ES000210)
  • National Center for Research Resources (S10RR027878)
  • National Center for Complementary and Integrative Health (T32AT002688, AT002688)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Complementary and alternative medicine › Ginkgo biloba and Cashew Applications
Keywords
Centella asiatica, caffeoylquinic acids
MeSH terms
Cell Line, Transformed, Chlorogenic Acid, Chromatography, High Pressure Liquid, Dose-Response Relationship, Drug, Humans, Neuroblastoma, Quinic Acid, Gene Expression Regulation, Enzymologic, Amyloid beta-Peptides, tau Proteins, Cell Death, Neuroprotective Agents, Centella

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