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Anti-Inflammatory Activity of Panduratin A against LPS-Induced Microglial Activation
Sopana Jamornwan1, Tanida Chokpanuwat1, Kwanchanok Uppakara2
1Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
Abstract:
Uncontrolled and excessive microglial activation is known to contribute to inflammation-mediated neurodegeneration. Therefore, reducing neurotoxic microglial activation may serve as a new approach to preventing neurodegeneration. Here, we investigated the anti-inflammatory effects of panduratin A against microglial activation induced by lipopolysaccharides (LPS) in the SIMA9 microglial cell line. We initially examined the anti-inflammatory properties of panduratin A by measuring LPS-induced nitric oxide (NO) production and the levels of pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6). Panduratin A significantly reduced NO levels and pro-inflammatory cytokines' production and secretion. In addition, panduratin A enhanced the production of anti-inflammatory cytokines IL-4 and IL-10. The anti-inflammatory effects of panduratin A are related to the suppression of the NF-κB signaling pathway. Together, these results demonstrate the anti-inflammatory properties of panduratin A against LPS-induced microglial activation, suggesting panduratin A has the potential to be further developed as a new agent for the prevention of neuroinflammation-associated neurodegenerative diseases.
Insights
Panduratin A reduces harmful microglial activation, a key factor in neurodegeneration. This compound shows potential as a new therapeutic agent for preventing neuroinflammation-associated diseases.
Area of Science:
- Neuroscience
- Immunology
- Pharmacology
Background:
- Microglial activation contributes to neuroinflammation and neurodegeneration.
- Targeting excessive microglial activation offers a novel strategy for neuroprotection.
Purpose of the Study:
- To investigate the anti-inflammatory effects of panduratin A on lipopolysaccharide (LPS)-induced microglial activation.
- To explore panduratin A's potential in preventing neuroinflammation-associated neurodegenerative diseases.
Main Methods:
- Utilized the SIMA9 microglial cell line stimulated with LPS.
- Assessed nitric oxide (NO) production and pro-inflammatory cytokine levels (TNF-α, IL-1β, IL-6).
- Measured anti-inflammatory cytokine production (IL-4, IL-10) and analyzed NF-κB signaling pathway activity.
Main Results:
- Panduratin A significantly inhibited LPS-induced NO production.
- Reduced secretion of pro-inflammatory cytokines TNF-α, IL-1β, and IL-6.
- Increased production of anti-inflammatory cytokines IL-4 and IL-10.
- Demonstrated suppression of the NF-κB signaling pathway.
Conclusions:
- Panduratin A exhibits significant anti-inflammatory properties against LPS-induced microglial activation.
- These findings suggest panduratin A's potential as a therapeutic agent for neuroinflammation and related neurodegenerative conditions.
