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Erschienen in: Inflammopharmacology 2/2024

19.02.2024 | Original Article

Glabridin reduces neuroinflammation by modulating inflammatory signals in LPS-induced in vitro and in vivo models

verfasst von: Jiyu Weng, Ying Wang, Zekai Tan, Yanghe Yuan, Shiyuan Huang, Zexi Li, Yiming Li, Lanyue Zhang, Zhiyun Du

Erschienen in: Inflammopharmacology | Ausgabe 2/2024

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Abstract

Objectives

Chronic neuroinflammation has become one of the important causes of common neurodegeneration disease. Therefore, the target of this study was to explore the protective action of glabridin on lipopolysaccharide (LPS)-induced neuroinflammation in vivo and in vitro and its mechanism.

Methods

The neuroinflammation model was established by LPS-induced BV2 cells. The cell viability with various concentrations of glabridin was determined by MTT assay, and the content of NO in each group was detected. A neuroinflammatory model was established in male C57BL/6J mice for a water maze test. Subsequently, NF-κB and SOD indices were measured by ELISA, GFAP and IBA-1 indices were measured by immunofluorescence, and Nissl staining was used to explore the Nissl bodies in the hippocampus of mice.

Results

In vitro experiments, our results expressed that glabridin could markedly increase the cell activity of LPS-induced BV2 cells and reduce the NO expression in cells. It indicated that glabridin had a remarkable impact on the neuroinflammation of LPS-induced BV2 cell protection. In vivo neuroinflammation experiments, mice treated with different doses of glabridin showed significantly improved ability of memory compared with the LPS group in the Morris water maze test. The levels of NF-κB, GFAP, and the number of positive cells in Nissl staining were decreased. High-dose glabridin significantly increased the SOD content in the brain tissue and decreased the IBA-1 levels.

Conclusion

Glabridin can significantly reduce or even reverse LPS-induced neuroinflammation, which may be related to the fact that glabridin can reduce the NO expression, NF-κB, IBA-1, GFAP, and other inflammatory mediators, upregulate the expression of SOD to relieve oxidative stress of brain and inhibit the activation of gliocyte in brain tissue.
Literatur
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Metadaten
Titel
Glabridin reduces neuroinflammation by modulating inflammatory signals in LPS-induced in vitro and in vivo models
verfasst von
Jiyu Weng
Ying Wang
Zekai Tan
Yanghe Yuan
Shiyuan Huang
Zexi Li
Yiming Li
Lanyue Zhang
Zhiyun Du
Publikationsdatum
19.02.2024
Verlag
Springer International Publishing
Erschienen in
Inflammopharmacology / Ausgabe 2/2024
Print ISSN: 0925-4692
Elektronische ISSN: 1568-5608
DOI
https://doi.org/10.1007/s10787-023-01424-5

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