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KMID : 0861020220370050083
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Korea Journal of Herbology
2022 Volume.37 No. 5 p.83 ~ p.88
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Anti-inflammatory activity of jakyakgamcho-tang on Lipopolysaccharide-Stimulated BV-2 Microglia Cells
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Mun Yeun-Ja
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Abstract
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Objectives : Jakyakgamcho-tang (JGT) has been traditionally used to treat muscular convulsion and pain in South
Korea. According to recent studies, JGT has been reported to have anti-depression, anti-inflammation, antioxidative, anti-diabetics, anti-spasm and analgesic effects, but studies on its anti-neuroinflammatory and neuro- protective effect have not been deeply conducted. Thus, we investigated the anti-neuroinflammatory activity of JGT
on lipopolysaccharide (LPS)-stimulated mouse microglia cells.
Methods : To investigate the anti-neuroinflammatory effects of JGT on BV2 microglial cells, we examined the production
of nitric oxide (NO) using griess assay, and mRNA expressions of pro-inflammatory cytokines such as interleukin
(IL)-1β, IL-6, and tumor necrosis factor (TNF)-α using real time RT-PCR. Furthermore, to determine the regulating
mechanisms of JGT, we investigated the heme oxygenase (HO)-1 by real time RT-PCR.
Results : Pre-treatment of JGT effectively decreased NO production in LPS-stimulated BV2 cells at concentrations
without cytotoxicity. Additionally, JGT significantly suppressed the production of IL-1β, IL-6, and TNF-α in LPSstimulated BV2 cells. Furthermore, JGT activated the HO-1 expression, which is one of the immunomodulatory
signaling molecules. And the abolishment of HO-1 by tin protoporphyrin IX (SnPP, the HO-1 inhibitor) reversed
the anti- inflammatory activity of JGT in LPS-stimulated BV2 cells.
Conclusions : Our results suggest that the JGT has anti-neuroinflammatory effect through the activation of HO-1 in
LPS-stimulated BV2 cells. Thereby, JGT could expected to be used for the prevention and treatment of neurodegenerative
disease related to neuroinflammation.
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KEYWORD
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jakyakgamcho-tang, microglia, neuro-inflammation, lipopolysaccharide, neurodegenerative disease
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