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Title: Valproic acid attenuates nitric oxide and interleukin‑1β production in lipopolysaccharide‑stimulated iron‑rich microglia
Authors: Nootchanat Mairuae
Poonlarp Cheepsunthorn
Email: No information provided
Other author: Chulalongkorn University. Faculty of Medicine
Issue Date: Apr-2018
Publisher: Spandidos Publications
Citation: Biomedical Reports. Vol.8, Issue 4 (Apr, 2018), p.359-364
Abstract: Iron accumulation in activated microglia has been consistently reported in neurodegenerative diseases. Previous results suggest that these cells facilitate neuroinflammation leading to neuronal cell death. Therefore, chemical compounds that alleviate the activation of iron‑rich microglia may result in neuroprotection. In the present study, the effect of valproic acid (VPA) on microglial activation under iron‑rich conditions was investigated. BV‑2 microglial cells were exposed to lipopolysaccharide (LPS; 1 µg/ml) and iron (300 µg/ml) with or without VPA (1.6 mM). The results demonstrated that VPA attenuated the activation of iron‑rich BV2 cells induced by LPS by down‑regulating the mRNA expression of inducible nitric oxide (NO) synthase and interleukin 1β (IL‑1β; P<0.01), to ultimately reduce the production of NO and IL‑1β (P<0.01). These events were accompanied by an attenuation in the nuclear translocation of nuclear factor‑κB p65 subunit (P<0.01). These findings suggest that VPA may be therapeutically useful for attenuating the activation of iron‑rich microglia.
ISSN: 2049-9434 (Print)
2049-9442 (Online)
metadata.dc.identifier.DOI: 10.3892/br.2018.1062
Type: Article
Appears in Collections:Chula Scholars - 2018

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