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Rhein Suppresses Neuroinflammation via Multiple Signaling Pathways in LPS-Stimulated BV2 Microglia Cells

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成果类型:
期刊论文
作者:
Zheng, Piao;Tian, Xuefei;Zhang, Wei;Yang, Zhaoyu;Zhou, Jing;...
通讯作者:
Wang, Y
作者机构:
[Wang, Yang; Luo, Jiekun; Yang, Zhaoyu; Zheng, Piao; Wang, Y; Cui, Hanjin; Tang, Tao] Cent South Univ, Xiangya Hosp, Dept Integrated Tradit Chinese & Western Med, Inst Integrat Med, Changsha 410008, Hunan, Peoples R China.
[Tian, Xuefei; Zheng, Piao; Zhang, Wei] Hunan Univ Chinese Med, Coll Integrated Tradit Chinese & Western Med, Changsha 410208, Hunan, Peoples R China.
[Zhou, Jing] Shanxi Prov Hosp Tradit Chinese Med, Shanxi Prov Inst Tradit Chinese Med, Taiyuan 030012, Shanxi, Peoples R China.
[Zheng, Jun] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.
通讯机构:
[Wang, Y ] C
Cent South Univ, Xiangya Hosp, Dept Integrated Tradit Chinese & Western Med, Inst Integrat Med, Changsha 410008, Hunan, Peoples R China.
语种:
英文
期刊:
Evidence-Based Complementary and Alternative Medicine
ISSN:
1741-427X
年:
2020
卷:
2020
页码:
1-12
基金类别:
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-1 β 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- κ B) were tested adopting western blot. We found that Rhein reduced the secretion of pivotal indicators including TNF- α and IL-1 β , 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-I κ B α , and NF- κ B. In summary, Rhein suppresses neuroinflammation via multiple signaling pathways (PI3K/Akt, p38, ERK1/2, and TLR4/NF- κ B) in LPS-stimulated BV2 microglia cells. This study highlights a natural agent for prevention and treatment of neuroinflammation. National Natural Science Foundation of China 81303074 81673719 81774032 Natural Science Foundation of Hunan Province 2019JJ30042 2018JJ6142
机构署名:
本校为其他机构
院系归属:
中西医结合学院
摘要:
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....

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