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PloS one

Inhibition of sPLA₂-IIA prevents LPS-induced neuroinflammation by suppressing ERK1/2-cPLA₂α pathway in mice cerebral cortex.


PMID 24130900

Abstract

Neuroinflammation is involved in various central nervous system (CNS) disorders, including brain infections, ischemia, trauma, stroke, and degenerative CNS diseases. In the CNS inflammation, secretory phospholipase A₂-IIA (sPLA₂-IIA) acts as a mediator, resulting in the generation of the precursors of pro-inflammatory lipid mediators, such as prostaglandins (PGs) and leukotrienes (LTs). However, the role of sPLA₂-IIA in neuroinflammation is more complicated and remains unclear yet. In the present study, we investigated the effect of sPLA₂-IIA inhibition by specific inhibitor SC-215 on the inflammation in LPS-induced mice cerebral cortex and primary astrocytes. Our results showed that the inhibition of sPLA₂-IIA alleviated the release of PGE₂ by suppressing the activation of ERK1/2, cPLA₂α, COX-2 and mPGES-1. These findings demonstrated that sPLA₂-IIA showed the potential to regulate the neuroinflammation in vivo and in vitro, indicating that sPLA₂-IIA might be a novel target for the treatment of acute neuroinflammation.

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S3319
sPLA2 inhibitor
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