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Protective and Therapeutic Effects of Engeletin on LPS-Induced Acute Lung Injury

Protective and Therapeutic Effects of Engeletin on LPS-Induced Acute Lung Injury

Xian Jiang, Lijuan Chen, Zhuo Zhang, Yuhong Sun, Xiaobin Wang, Jicheng Wei

Inflammation. 2018 Aug;41(4):1259-1265.

PMID: 29704150

Abstract:

Acute lung injury (ALI) is a serious disease with morbidity and mortality in patients. Engeletin (dihydrokaempferol 3-rhamnoside) is a flavanonol glycoside. It can be found in the skin of white grapes and white wine and is widely distributed in southeast Asia. In our study, we evaluated the protective and therapeutic effects of engeletin on lipopolysaccharide (LPS)-induced ALI in animal model. We determined the level of peroxisome proliferator-activated receptor-γ (PPAR-γ), nuclear factor kappaB (NF-κB), and IκBα by western blotting. The myeloperoxidase (MPO) activity and lung wet/dry (W/D) ratio in lung tissues were also detected. Histopathological changes and the pro-inflammatory cytokines TNF-α, IL-6, and IL-1β were determined by H&E staining and ELISA. The MPO activity and lung W/D ratio induced by LPS were attenuated by engeletin. The numbers of inflammatory cells and the levels of inflammatory cytokines in bronchoalveolar lavage fluid (BALF) were ameliorated by engeletin. Furthermore, the results also showed that engeletin significantly suppressed LPS-induced NF-κB activation. The expression of PPAR-γ was upregulated by treatment of engeletin. In conclusion, we found that engeletin had protective and therapeutic effects against LPS-induced ALI by activating PPAR-γ. Engeletin is a potentially effective agent for the treatment of lung injury.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP572316	Engeletin		572-31-6	Price

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