ArticleInflammation2017
An Active Drimane-Type Lactone from Polygonum jucundum Attenuates Lipopolysaccharide-Induced Acute Lung Injury in Mice Through TLR4-MAPKs Signaling Pathway.
Article in Inflammation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 13 citations in OpenAlex.
- Anti-Inflammatory and Immunoregulatory Action of Sesquiterpene Lactones.Molecules (Basel, Switzerland) · 2022Review
- Biosynthesis of Fungal Drimane-Type Sesquiterpene Esters.Angewandte Chemie (International ed. in English) · 2021Article
- Natural product derived phytochemicals in managing acute lung injury by multiple mechanisms.Pharmacological research · 2021Review
- Oxymatrine attenuates lipopolysaccharide-induced acute lung injury by activating the epithelial sodium channel and suppressing the JNK signaling pathway.Experimental animals · 2018Article
- Nuciferine Ameliorates Inflammatory Responses by Inhibiting the TLR4-Mediated Pathway in Lipopolysaccharide-Induced Acute Lung Injury.Frontiers in pharmacology · 2017Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The herbs of Polygonum jucundum Lindex. (Polygonaceae) is a traditional Chinese medicine for inflammatory diseases. 2α-Hydroxyl-3β-angeloylcinnamolide (HAC), a drimane-type sesquiterpenoid, was the major active compound of the ethanol extract of P. jucundum which inhibited the production of inflammatory mediators. However, the biological mechanism of HAC for anti-inflammatory activity has not been reported. In the current study, we investigated whether HAC could suppress the production of inflammatory mediators in lipopolysaccharide (LPS)-induced acute lung injury in mice (ALI) through downregulation of Toll-like receptor 4 (TLR4) and activations of mitogen-activated protein kinases (MAPKs) and inducible protein nitric oxide synthase (iNOS). Moreover, our data indicated that HAC inhibits the overexpression of iNOS and TLR4 in LPS-treated RAW264.7, and also inhibits MAPK signal. These findings suggest that HAC shows anti-inflammatory effects in ALI mice through suppressing TLR4-mediated MAPK pathway in activated macrophages. In addition, six derivatives of HAC obtained by structure modification were investigated for their inhibitory effects on the production of nitric oxide (NO) and tumor necrosis factor-α (TNF-α), suggesting that the acetylation could increase the inhibition of HAC on TNF-α release in LPS-treated RAW264.7 cells. In summary, all these results showed that HAC may be a potential anti-inflammatory lead compound for the treatment of acute lung injury.
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