Cited by 46Neonatal and fetal brain pathologyNeuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanisms

Short-chain fatty acids reduce oligodendrocyte precursor cells loss by inhibiting the activation of astrocytes via the SGK1/IL-6 Signalling pathway

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Gao, Yanmin, Xie, Di, Wang, Yang, Niu, Lei, Jiang, Hua·2022·Neurochemical Research

Abstract

Short-chain fatty acids (SCFAs) are known to be actively involved in neurological diseases, but their roles in hypoxic-ischaemic brain injury (HIBI) are unclear. In this study, a rat model of HIBI was established, and this study measured the changes in IL-6 and NOD-like receptor thermal protein domain associated protein 3 (NLRP3), in addition to proliferation and apoptosis indicators of oligodendrocyte precursor cells (OPCs). The mechanism of action of SCFA on astrocytes was also investigated. Astrocytes were subjected to hypoxia in vitro, and OPCs were treated with IL-6. The results showed that SCFAs significantly alleviated HIBI-induced activation of astrocytes and loss of OPCs. SCFA pretreatment (1) downregulated the expression of NLRP3, IL-6, CCL2, and IP-10; (2) had no effect on the proliferation of OPCs; (3) ameliorated the abnormal expression of Bax and Bcl-2; and (4) regulated IL-6 expression via the SGK1-related pathway in astrocytes. Our findings revealed that SCFAs alleviated the loss of OPCs by regulating astrocyte activation through the SGK1/IL-6 signalling pathway.

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  1. [11]Zhang H Zahid A Ismail H An overview of disease models for NLRP3 inflammasome over-activation Expert Opin Drug Discov 2020 16 1 18 33131335
  2. [24]Kobayashi T Deak M Morrice N Characterization of the structure and regulation of two novel isoforms of serum-and glucocorticoid-induced protein kinase Int J Dermatol 1999 344 1193 1194 PMC1220630 10548550

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Authors
Gao, Y., Xie, D., Wang, Y., Niu, L., & Jiang, H.
Affiliations
  • Tongji University (CN)
  • Shanghai Jiao Tong University (CN)
Corresponding author
Jiang, Hua
Venue
Neurochemical Research
Published
2022-09-13
Volume
47
Issue
11
Pages
3476-3489
ISSN
  • 0364-3190 (ISSN-L)
  • 1573-6903
OpenAlex
W4295484465
Cited by
46
References
29
Citations by year
2026: 9 · 2025: 16 · 2024: 13 · 2023: 8
FWCI
10.14
Type
journal article
Language
en
Open access
Locations
  • Neurochemical Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81901930, 81772111)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Neonatal and fetal brain pathology
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
short-chain fatty acids, oligodendrocyte precursor cells, astrocyte activation, hypoxic-ischemic brain injury, NLRP3 inflammasome, interleukin-6, OPC proliferation, neuroprotection
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Oligodendrocyte Precursor Cells, Animals, Astrocytes, Fatty Acids, Volatile, Interleukin-6, Proto-Oncogene Proteins c-bcl-2, Hypoxia-Ischemia, Brain, bcl-2-Associated X Protein, Rats, Chemokine CXCL10

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