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Abstract Title:

Arctiin Prevents LPS-Induced Acute Lung Injury via Inhibition of PI3K/AKT Signaling Pathway in Mice.

Abstract Source:

Inflammation. 2018 Dec ;41(6):2129-2135. PMID: 30116933

Abstract Author(s):

Bo Zhou, Guohu Weng, Zhengxin Huang, Tao Liu, Feiyue Dai

Article Affiliation:

Bo Zhou

Abstract:

Arctiin is a lignin isolated from Arctium lappa which has been known to have anti-viral and anti-inflammatory effects. The aim of this study is to explore the protective effect of arctiin on lipopolysaccharide (LPS)-induced inflammatory responses in acute lung injury (ALI) model of mice. Male BALB/c mice were pretreated with commercial arctiin (10, 20, and 40 mg/kg) 1 h prior to LPS challenge. Twelve hours later, airway inflammation was assessed. We assessed the effects of arctiin on the LPS-induced production of TNF-α, IL-6, and IL-1β in the bronchoalveolar lavage fluid (BALF). The lung wet-to-dry weight ratio, myeloperoxidase (MPO) activity, and inflammatory signaling pathway were also detected. Our results showed that arctiin not only significantly ameliorated LPS-stimulated lung histopathological changes but also reduced the lung MPO activity. Arctiin also dramatically decreased the production of TNF-α, IL-1β, and IL-6 in the BALF. In addition, arctiin significantly inhibited LPS-induced PI3K/Akt phosphorylation as well as NF-κB activation. In conclusion, our results suggested that arctiin protected against LPS-induced ALI through inhibiting PI3K/AKT/NF-κB signaling pathway.

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