Cited by 186Mitochondrial Function and PathologyFluoride Effects and RemovalMagnolia and Illicium research

Mitigation of honokiol on fluoride-induced mitochondrial oxidative stress, mitochondrial dysfunction, and cognitive deficits through activating AMPK/PGC-1α/Sirt3

Wang, Dongmei, Cao, Luyang, Zhou, Xiang, Wang, Gang, Ma, Yilu, Hao, Xueqin, Fan, Hua·2022·Journal of Hazardous Materials

Abstract

Oxidative stress and mitochondrial dysfunction contribute greatly to fluoride-induced cognitive impairment and behavioural disorders. Honokiol, a natural biphenolic compound, possesses antioxidant and mitochondrial protective properties. The present study investigated the protective actions of honokiol on NaF-elicited cognitive deficits and elucidated the possible mechanism of honokiol-mediated protection. The results demonstrated that honokiol administration markedly attenuated fluoride-induced cognitive impairments and neural/synaptic injury in mice. Moreover, honokiol elevated the activity and expression of SOD2 and promoted mtROS scavenging through Sirt3 activation in NaF-treated mice and SH-SY5Y cell lines. Meanwhile, honokiol substantially lowered mtROS production by enhancing Sirt3-mediated mitochondrial DNA (mtDNA) transcription, thereby leading to significant increases in ATP synthesis and complex I activity. Further studies revealed that honokiol activated AMPK and upregulated the PGC-1α and Sirt3 protein expression in vivo and in vitro. Intriguingly, the protective actions of honokiol on oxidative stress and mitochondrial dysfunction were abolished by AMPK shRNA or Sirt3 shRNA. Notably, AMPK knockdown prevented the increase in PGC-1α and Sirt3 expression induced by honokiol, while Sirt3 shRNA suppressed Sirt3 signaling without significant effects on p-AMPK and PGC-1α expression. In conclusion, our findings indicate that honokiol mitigates NaF-induced oxidative stress and mitochondrial dysfunction by regulating mtROS homeostasis, partly via the AMPK/PGC-1α/Sirt3 pathway, which ultimately contributes to neuronal/synaptic injury and cognitive deficits.

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Crossref · 10.1016/j.jhazmat.2022.129381

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Authors
Wang, D., Cao, L., Zhou, X., Wang, G., Ma, Y., Hao, X., & Fan, H.
Affiliations
  • Henan University of Science and Technology (CN)
  • First Affiliated Hospital of Henan University of Science and Technology (CN)
Corresponding author
  • Wang, Dongmei
  • Fan, Hua
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2022-09
Volume
437
Pages
129381
ISSN
0304-3894 (ISSN-L)
OpenAlex
W4283010307
Cited by
186
References
71
Citations by year
2026: 59 · 2025: 53 · 2024: 53 · 2023: 19 · 2022: 2
FWCI
10.37
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Physical Sciences › Environmental Science › Water Science and Technology › Fluoride Effects and Removal
  • Health Sciences › Medicine › Rehabilitation › Magnolia and Illicium research
Keywords
honokiol, fluoride toxicity, sodium fluoride, mitochondrial oxidative stress, mitochondrial dysfunction, cognitive impairment, AMPK, PGC-1α, SIRT3, mitochondrial reactive oxygen species, manganese superoxide dismutase, mitochondrial transcription, ATP production, complex I activity, neuronal injury, synaptic injury, neuroprotection
MeSH terms
Allyl Compounds, Animals, Biphenyl Compounds, Cognition, DNA, Mitochondrial, Fluorides, Humans, Mitochondria, Neuroblastoma, Phenols, Lignans, Oxidative Stress, RNA, Small Interfering, Mice, AMP-Activated Protein Kinases, Sirtuin 3, Cognitive Dysfunction

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