Rhein Suppresses Neuroinflammation via Multiple Signaling Pathways in LPS-Stimulated BV2 Microglia Cells
Joint Authors
Wang, Yang
Tang, Tao
Cui, Hanjin
Luo, Jiekun
Zheng, Piao
Tian, Xuefei
Zhang, Wei
Yang, Zhaoyu
Zhou, Jing
Zheng, Jun
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-29
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
As a bioactive absorbed compound of rhubarb, Rhein is applied for the treatment of brain injury.
However, the underlying pharmacological mechanisms remain unclear.
In this study, we aimed to explore antineuroinflammatory functions and underlying mechanisms of Rhein in vitro.
BV2 microglia cells were chosen and irritated by LPS.
The influence of Rhein on cell viability was determined using MTT assay.
We finely gauged the proinflammatory cytokines of TNF-α and IL-1β through tests of immunofluorescence staining, ELISA, RT-qPCR, and western blot.
Additionally, mediators including IL-6, IL-12, iNOS, and IL-10 were surveyed by ELISA.
Furthermore, protein levels of the underlying signaling pathways (PI3K/Akt, p38, ERK1/2, and TLR4/NF-κB) were tested adopting western blot.
We found that Rhein reduced the secretion of pivotal indicators including TNF-α and IL-1β, effectively restraining their mRNA and protein expression in LPS-activated BV2 microglial cells.
Besides, Rhein treatment demoted the production of IL-6, IL-12, and iNOS and promoted the excretion of IL-10.
Subsequent mechanistic experiments revealed that Rhein obviously downregulated the phosphorylation levels of PI3K, Akt, p38, and ERK1/2 and simultaneously upregulated the PTEN expression.
In addition, Rhein antagonized the increase of TLR4, p-IκBα, and NF-κB.
In summary, Rhein suppresses neuroinflammation via multiple signaling pathways (PI3K/Akt, p38, ERK1/2, and TLR4/NF-κB) in LPS-stimulated BV2 microglia cells.
This study highlights a natural agent for prevention and treatment of neuroinflammation.
American Psychological Association (APA)
Zheng, Piao& Tian, Xuefei& Zhang, Wei& Yang, Zhaoyu& Zhou, Jing& Zheng, Jun…[et al.]. 2020. Rhein Suppresses Neuroinflammation via Multiple Signaling Pathways in LPS-Stimulated BV2 Microglia Cells. Evidence-Based Complementary and Alternative Medicine،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1157195
Modern Language Association (MLA)
Zheng, Piao…[et al.]. Rhein Suppresses Neuroinflammation via Multiple Signaling Pathways in LPS-Stimulated BV2 Microglia Cells. Evidence-Based Complementary and Alternative Medicine No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1157195
American Medical Association (AMA)
Zheng, Piao& Tian, Xuefei& Zhang, Wei& Yang, Zhaoyu& Zhou, Jing& Zheng, Jun…[et al.]. Rhein Suppresses Neuroinflammation via Multiple Signaling Pathways in LPS-Stimulated BV2 Microglia Cells. Evidence-Based Complementary and Alternative Medicine. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1157195
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157195