Cited by 175Neuroinflammation and Neurodegeneration MechanismsNF-κB Signaling PathwaysTryptophan and brain disorders

Asiatic acid attenuates methamphetamine-induced neuroinflammation and neurotoxicity through blocking of NF-kB/STAT3/ERK and mitochondria-mediated apoptosis pathway

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Park, Ji-Hyun, Seo, Young Ho, Jang, Jung-Hee, Jeong, Chul-Ho, Lee, Sooyeun, Park, Byoungduck·2017·Journal of Neuroinflammation

Abstract

BACKGROUND: Methamphetamine (METH) is a commonly abused drug that may result in neurotoxic effects. Recent studies have suggested that involvement of neuroinflammatory processes in brain dysfunction is induced by misuse of this drug. However, the mechanism underlying METH-induced inflammation and neurotoxicity in neurons is still unclear. In this study, we investigated whether asiatic acid (AA) effected METH-mediated neuroinflammation and neurotoxicity in dopaminergic neuronal cells. And we further determined whether the effect involved in the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and signal transducer and activator of transcription (STAT)3 and extracellular signal-regulated kinase (ERK) pathway. METHODS: We used the human dopaminergic neuroblastoma SH-SY5Y cell line, murine microglial BV2 cell line, and primary culture of rat embryo mesencephalic neurons. Pro-inflammatory cytokine production was monitored by ELISA and RT/real-time PCR. The cell cycle distribution and mitochondrial membrane integrity was analyzed by flow cytometry. We used immunoblotting, DNA-binding activity, and immunofluorescence staining to analyze the effect of AA on activation of the NF-κB, STAT3, MAPK-ERK, and apoptosis signaling pathways. RESULTS: METH induced TNF receptor (TNFR) expression and led to morphological changes of cells. Additionally, this drug increased pro-inflammatory cytokine (TNFα and IL-6) expression. AA significantly suppressed METH-induced TNFR expression in concentration dependent. Increased secretion of TNFα and IL-6 was inhibited in METH-stimulated neuronal cells by AA administration. AA showed significant protection against METH-induced translocation of NF-κB/STAT3 and ERK phosphorylation. AA inhibited METH-induced proteolytic fragmentation of caspase-3 and PARP. The pro-apoptotic protein Bax was significantly decreased, while the anti-apoptotic protein Bcl-xL was increased by AA treatment in METH-stimulated cells. A similar protective effect of AA on mitochondrial membrane integrity was also confirmed by flow cytometry and immunofluorescence staining. CONCLUSIONS: Based on the literatures and our findings, AA is a promising candidate for an anti-neurotoxic agent, and it can potentially be used for the prevention and treatment of various neurological disorders.

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  • In vitro studies show CAW whole extract and isolated compounds facilitate neurite outgrowth and elicit neuroprotection.

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Authors
Park, J.-H., Seo, Y. H., Jang, J.-H., Jeong, C.-H., Lee, S., & Park, B.
Affiliations
Keimyung University (KR)
Corresponding author
Park, Byoungduck
Venue
Journal of Neuroinflammation
Published
2017-12
Volume
14
Issue
1
Pages
240-240
ISSN
1742-2094 (ISSN-L)
OpenAlex
W2771852048
Cited by
175
References
48
Citations by year
2026: 20 · 2025: 30 · 2024: 25 · 2023: 17 · 2022: 23 · 2021: 19 · 2020: 22 · 2019: 9 · 2018: 10
FWCI
5.59
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Neuroinflammation (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Korea Brain Research Institute
  • National Research Foundation (NRF-2016R1A6A1A03011325)
  • Korea University
  • National Research Foundation of Korea (NRF‐2016R1A6A1A03011325, - 2016R1A6A1A03011325)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
asiatic acid, methamphetamine, neuroinflammation, neurotoxicity, dopaminergic neurons, NF-κB, STAT3, MAPK/ERK pathway, apoptosis, mitochondrial membrane integrity, TNF receptor, inflammatory cytokines, caspase-3, neuroprotection
MeSH terms
Central Nervous System Stimulants, Animals, Cell Line, Humans, Inflammation, Methamphetamine, Mitochondria, Neurons, Signal Transduction, NF-kappa B, Apoptosis, Neuroprotective Agents, Extracellular Signal-Regulated MAP Kinases, STAT3 Transcription Factor, Mice, Rats, Pentacyclic Triterpenes

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