Cited by 154Mitochondrial Function and PathologyNeurological Disorders and TreatmentsMedicinal Plants and Neuroprotection

Linalool Attenuates Oxidative Stress and Mitochondrial Dysfunction Mediated by Glutamate and NMDA Toxicity

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Sabogal-Guáqueta, Angélica María, Hobbie, Fabian, Keerthi, Akshaya, Oun, Asmaa, Kortholt, Arjan, Boddeke, Erik, Dolga, Amalia·2019·Biomedicine & Pharmacotherapy

Abstract

Mitochondrial dysfunction and inflammation contribute to the initiation and development of several brain pathological conditions, including Alzheimer's disease and cerebral ischemia. Linalool is an aromatic plant-derived monoterpene alcohol with reported anti-inflammatory, and anti-oxidant properties. We investigated the role of linalool on glutamate-induced mitochondrial oxidative stress in immortalized neuronal HT-22 cells. Glutamate induced oxidative stress in neuronal cells, as detected by real-time cell impedance measurements, MTT assay, and analysis of Annexin V/PI. Administration of linalool 100 μM reduced cell death mediated by glutamate. Staining of glutamate-stimulated mitochondria by MitoTracker revealed improved morphology in the presence of linalool. Furthermore, we demonstrated a potential neuroprotective effect of linalool in conditions of oxidative stress by a reduction of mitochondrial ROS and mitochondrial calcium levels, and by preserving mitochondrial membrane potential. Experiments using both high-resolution respirometry and Seahorse Extracellular flux analyzer showed that linalool was able to promote an increase in uncoupled respiration that could contribute to its neuroprotective capacity. Linalool protection was validated using organotypic hippocampal slices as ex vivo model with NMDA as a stimulus to induce excitotoxity cell damage. These results demonstrate that linalool is protective in an in vitro model of glutamate-induced oxidative stress and in an ex-vivo model for excitotoxity, proposing linalool as a potential therapeutic agent against neurodegenerative brain diseases where oxidative stress contributes to the pathology of the disease.

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  1. V.M. Linck, A.L. Da Silva, M. Figueiró, E.B. Caramão, P.R.H. Moreno, E. Elisabetsky, Effects of inhaled Linalool in anxiety, social interaction and aggressive behavior in mice, Phytomedicine 17 (2010) 679-683, https://doi.org/10.1016/j.phymed.2009. 10.002. · DOI

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Authors
Sabogal-Guáqueta, A. M., Hobbie, F., Keerthi, A., Oun, A., Kortholt, A., Boddeke, E., & Dolga, A.
Affiliations
  • University Medical Center Groningen (NL)
  • University of Groningen (NL)
  • Universidad de Antioquia (CO)
Corresponding author
Sabogal-Guáqueta, Angélica María
Venue
Biomedicine & Pharmacotherapy
Publisher
Elsevier BV
Published
2019-10
Volume
118
Pages
109295
ISSN
0753-3322 (ISSN-L)
OpenAlex
W2972189281
Cited by
154
References
59
Citations by year
2026: 12 · 2025: 26 · 2024: 23 · 2023: 22 · 2022: 28 · 2021: 24 · 2020: 18 · 2014: 1
FWCI
5.79
Type
journal article
Language
en
Open access
Locations
  • Biomedicine & Pharmacotherapy (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by-nc-nd)
Funders
  • Rijksuniversiteit Groningen
  • Universitair Medisch Centrum Groningen
  • European Commission
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
Keywords
linalool, monoterpenes, glutamate excitotoxicity, NMDA excitotoxicity, oxidative stress, mitochondrial dysfunction, neuroprotection, mitochondrial reactive oxygen species, mitochondrial calcium, mitochondrial membrane potential, uncoupled respiration, HT22 cells, organotypic hippocampal slices, neurodegenerative diseases, Alzheimer's disease, cerebral ischemia
MeSH terms
Acyclic Monoterpenes, Animals, Brain, Mice, Inbred C57BL, Mitochondria, Lipid Peroxidation, N-Methylaspartate, Apoptosis, Oxidative Stress, Glutamic Acid, Cell Respiration, Protective Agents, Cyclooxygenase 2

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