Abstract
To assess the therapeutic effect and mechanism of 6'-o-galloylpaeoniflorin (GPF) in pediatric pneumonia. The effects of lipopolysaccharide (LPS) and GPF on cell viability and apoptosis were examined by cell counting kit-8 assay and flow cytometry analysis. The oxidative stress and inflammatory response were assessed by detecting expression levels of superoxide dismutase, glutathione, r-glutamyl cysteingl+glycine, myeloperoxidase, and malondialdehyde as well as tumor necrosis factor-α, Interleukin-18, and Interleukin-10 by using enzyme-linked-immunosorbent serologic assay. Moreover, the activation of nuclear factor erythroid 2-related factor 2 (Nrf2) pathway was detected by immunoblot assay, and the influence of Nrf2-knockdown on cell viability, oxidative stress, and inflammation response was also investigated. The results established that GPF increased the viability of LPS-induced pneumonia cells. In addition, GPF reduced LPS-induced oxidative stress in pneumonia cells. It was further discovered that GPF reduced LPS-induced inflammation in pneumonic cell. GPF improved the activity of Nrf2 in LPS-treated pneumonic cells, and therefore alleviated inflammation and oxidative stress in pediatric pneumonia. GPF could serve as a promising drug for treating pediatric pneumonia.
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