Cited by 273Gut microbiota and healthCircadian rhythm and melatoninNeuroinflammation and Neurodegeneration Mechanisms

Gut microbiota-derived metabolites mediate the neuroprotective effect of melatonin in cognitive impairment induced by sleep deprivation

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Wang, Xintong, Wang, Zixu, Cao, Jing, Dong, Yulan, Chen, Yaoxing·2023·Microbiome

Abstract

Background: Sleep loss is a serious global health concern. Consequences include memory deficits and gastrointestinal dysfunction. Our previous research showed that melatonin can effectively improve cognitive impairment and intestinal microbiota disturbances caused by sleep deprivation (SD). The present study further explored the mechanism by which exogenous melatonin prevents SD-induced cognitive impairments. Here, we established fecal microbiota transplantation, Aeromonas colonization and LPS or butyrate supplementation tests to evaluate the role of the intestinal microbiota and its metabolites in melatonin in alleviating SD-induced memory impairment. Results: Transplantation of the SD-gut microbiota into normal mice induced microglia overactivation and neuronal apoptosis in the hippocampus, cognitive decline, and colonic microbiota disorder, manifesting as increased levels of Aeromonas and LPS and decreased levels of Lachnospiraceae_NK4A136 and butyrate. All these events were reversed with the transplantation of SD + melatonin-gut microbiota. Colonization with Aeromonas and the addition of LPS produced an inflammatory response in the hippocampus and spatial memory impairment in mice. These changes were reversed by supplementation with melatonin, accompanied by decreased levels of Aeromonas and LPS. Butyrate administration to sleep-deprived mice restored inflammatory responses and memory impairment. In vitro, LPS supplementation caused an inflammatory response in BV2 cells, which was improved by butyrate supplementation. This ameliorative effect of butyrate was blocked by pretreatment with MCT1 inhibitor and HDAC3 agonist but was mimicked by TLR4 and p-P65 antagonists. Conclusions: Gut microbes and their metabolites mediate the ameliorative effects of melatonin on SD-induced cognitive impairment. A feasible mechanism is that melatonin downregulates the levels of Aeromonas and constituent LPS and upregulates the levels of Lachnospiraceae_NK4A136 and butyrate in the colon. These changes lessen the inflammatory response and neuronal apoptosis in the hippocampus through crosstalk between the TLR4/NF-κB and MCT1/ HDAC3 signaling pathways.

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Authors
Wang, X., Wang, Z., Cao, J., Dong, Y., & Chen, Y.
Affiliations
China Agricultural University (CN)
Corresponding author
Chen, Yaoxing
Venue
Microbiome
Published
2023-01-31
Volume
11
Issue
1
Pages
17-17
ISSN
2049-2618 (ISSN-L)
OpenAlex
W4318612039
Cited by
273
References
62
Citations by year
2026: 68 · 2025: 96 · 2024: 90 · 2023: 19
FWCI
24.25
Type
journal article
Language
en
Open access
Locations
  • Microbiome (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (31672501)
  • Natural Science Foundation of Beijing Municipality (6222019)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
melatonin, sleep deprivation, gut microbiota, cognitive impairment, memory impairment, Aeromonas, lipopolysaccharide, butyrate, Lachnospiraceae NK4A136, hippocampal inflammation, microglial activation, neuronal apoptosis, TLR4/NF-κB signaling, fecal microbiota transplantation, gut-brain axis
MeSH terms
Eubacteriales, Gastrointestinal Microbiome, Animals, Butyrates, Lipopolysaccharides, Melatonin, Sleep Deprivation, Neuroprotective Agents, Toll-Like Receptor 4, Mice, Cognitive Dysfunction

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