Fast-Acting and Receptor-Mediated Regulation of Neuronal Signaling Pathways by Copaiba Essential Oil
Yasuyo Urasaki1, Cody Beaumont2, Michelle Workman2
1College of Pharmacy, Roseman University of Health Sciences, 10530 Discovery Drive, Las Vegas, NV 89135, USA.
International Journal of Molecular Sciences
|March 29, 2020
Summary
Copaiba essential oil rapidly activates neuronal signaling pathways, including PI3K/Akt/mTOR, MAPK, and JAK/STAT, via CB2 receptors. It also induces apoptosis, highlighting its complex biological activities.
Area of Science:
- Neuroscience
- Pharmacology
- Proteomics
Background:
- Essential oils are increasingly studied for therapeutic potential.
- Neuronal cell signaling pathways regulate critical cellular functions.
- Understanding the molecular mechanisms of essential oils is crucial for their application.
Purpose of the Study:
- To investigate the biological activities of copaiba essential oil on neuronal signaling pathways.
- To elucidate the role of cannabinoid receptor 2 (CB2) in mediating these effects.
- To assess the impact of copaiba essential oil on neuronal cell viability and apoptosis.
Main Methods:
- Utilized SH-SY5Y neuronal cell line for experiments.
- Employed nanofluidic proteomic technologies to measure protein phosphorylation.
- Administered copaiba essential oil, CB2 agonist AM1241, and inverse agonist BML190.
Main Results:
- Copaiba essential oil upregulated PI3K/Akt/mTOR, MAPK, and JAK/STAT pathways within 30 minutes.
- Effects were mediated via CB2 receptors, as shown by abrogation with AM1241 and BML190.
- Activated apoptosis signaling and reduced cell viability (EC50 ~400 ng/mL).
- β-caryophyllene, a key component, downregulated PI3K/Akt/mTOR.
Conclusions:
- Copaiba essential oil exhibits rapid, CB2-mediated biological activities in neuronal cells.
- The oil influences pathways related to cell metabolism, growth, immunity, and apoptosis.
- Nanofluidic proteomics is a powerful tool for analyzing essential oil bioactivity.
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