ArticleCell communication and signaling : CCS2024
A rare olive compound oleacein functions as a TrkB agonist and mitigates neuroinflammation both in vitro and in vivo.
Article in Cell communication and signaling : CCS, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Extra-Virgin Olive Oil Phenolics in IBD-Associated Vascular Risk.Molecules (Basel, Switzerland) · 2026Review
- A novel synthetic 3,4,5-tri-feruloylquinic acid enhances learning and memory via neurotrophin signaling in an aging model senescence-accelerated prone 8 mice.GeroScience · 2026Article
- LPS-Induced Neuroinflammation Disrupts Brain-Derived Neurotrophic Factor and Kinase Pathways in Alzheimer's Disease Cell Models.Cellular and molecular neurobiology · 2025Article
- Anti-neuroinflammatory potential of porcine liver decomposition products in improving behavioral abnormalities: Effects on formalin- and LPS-induced inflammation.Biomedical reports · 2025Article
- Anti-Bacterial, Anti-Viral, and Anti-Inflammatory Properties of Kumazasa Extract: A Potential Strategy to Regulate Smoldering and Inflammation.Medicina (Kaunas, Lithuania) · 2025Article
- Interleukin-37 modulates microglial phenotype and inhibits inflammatory response via the MyD88/NF-κB pathway in lipopolysaccharide-induced neuroinflammation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Article
- Neuroinflammation and Natural Antidepressants: Balancing Fire with Flora.Biomedicines · 2025Review
- Spontaneous Reaction of Oleacein and Oleocanthal with Primary Amines: A Biochemical Perspective.Molecules (Basel, Switzerland) · 2025Article
- The Role of Brain-Derived Neurotrophic Factor as an Essential Mediator in Neuronal Functions and the Therapeutic Potential of Its Mimetics for Neuroprotection in Neurologic and Psychiatric Disorders.Molecules (Basel, Switzerland) · 2025Review
- Antidepressant-like and neuroprotective effects of pine needle extracts: evidence from behavioral, transcriptomic, and biochemical studies.EXCLI journal · 2025Article
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Authors and funding
8 authors.
Funding
Abstract
backgroundNeuroinflammation is widely acknowledged as a characteristic feature of almost all neurological disorders and specifically in depression- and anxiety-like disorders. In recent years, there has been significant attention on natural compounds with potent anti-inflammatory effects due to their potential in mitigating neuroinflammation and neuroplasticity.
methodsIn the present study, we aimed to evaluate the neuroprotective effects of oleacein (OC), a rare secoiridoid derivative found in extra virgin olive oil. Our goal was to explore the BDNF/TrkB neurotrophic activity of OC and subsequently assess its potential for modulating neuroinflammatory response using human neuroblastoma cells (SH-SY5Y cells) and an in vivo model of depression induced by lipopolysaccharide (LPS)-mediated inflammation.
resultsIn SH-SY5Y cells, OC exhibited a significant dose-dependent increase in BDNF expression. This enhancement was absent when cells were co-treated with inhibitors of BDNF's receptor TrkB, as well as downstream molecules PI3K and MEK. Whole-transcriptomics analysis revealed that OC upregulated cell cycle-related genes under normal conditions, while downregulating inflammation-associated genes in LPS-induced conditions. Furthermore, surface plasmon resonance (SPR) assays demonstrated that OC exhibited a stronger and more stable binding affinity to TrkB compared to the positive control, 7,8-dihydroxyflavone. Importantly, bioluminescence imaging revealed that a single oral dose of OC significantly increased BDNF expression in the brains of Bdnf-IRES-AkaLuc mice. Furthermore, oral administration of OC at a dosage of 10 mg/kg body weight for 10 days significantly reduced immobility time in the tail suspension test compared to the LPS-treated group. RT-qPCR analysis revealed that OC significantly decreased the expression of pro-inflammatory cytokines Tnfα, Il6, and Il1β, while simultaneously enhancing Bdnf expression, as well as both pro and mature BDNF protein levels in mice hippocampus. These changes were comparable to those induced by the positive control antidepressant drug fluoxetine. Additionally, microarray analysis of mouse brains confirmed that OC could counteract LPS-induced inflammatory biological events.
conclusionAltogether, our study represents the first report on the potential antineuroinflammatory and antidepressant properties of OC via modulation of BDNF/TrkB neurotrophic activity. This finding underscores the potential of OC as a natural therapeutic agent for depression- and anxiety-related disorders.
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