Geraniin attenuates LPS-induced acute lung injury via inhibiting NF-κB and activating Nrf2 signaling pathways

Guangfa Zhu; Xi Xin; Yan Liu; Yan Huang; Keng Li; Chunting Wu

doi:10.18632/oncotarget.15227

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Research Papers:

Geraniin attenuates LPS-induced acute lung injury via inhibiting NF-κB and activating Nrf2 signaling pathways

Guangfa Zhu _, Xi Xin, Yan Liu, Yan Huang, Keng Li and Chunting Wu

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Oncotarget. 2017; 8:22835-22841. https://doi.org/10.18632/oncotarget.15227

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Abstract

Guangfa Zhu1,2, Xi Xin1, Yan Liu2, Yan Huang1, Keng Li2, Chunting Wu1

1Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, P.R. China

2Department of Infectious Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, P.R. China

Correspondence to:

Guangfa Zhu, email: [email protected]

Keywords: geraniin, LPS, Nrf2, lung injury

Received: November 16, 2016 Accepted: January 13, 2017 Published: February 09, 2017

ABSTRACT

Geraniin, a typical ellagitannin isolated from Phyllanthusurinaria Linn, has been reported to have anti-inflammatory effect. The aim of the study is to investigate the therapeutic effects of geraniin on LPS-induced acute lung injury (ALI) in mice. The mice were intranasal adminisration of LPS for 12 h. Geraniin was intra-peritoneal injection 1 h after LPS treatment. The results showed that geraniin significantly attenuated LPS-induced pathological changes in the lung. Geraniin also inhibited LPS-induced macrophages and neutrophils infiltration in the lung. Geraniin significantly attenuated LPS-induced elevation of MPO level. LPS-induced TNF-α, IL-6 and IL-1β production were markedly suppressed by treatment of geraniin. Furthermore, geraniin inhibited NF-κB activation in LPS-induced ALI. In addition, geraniin was found to up-regulate the expression of Nrf2 and HO-1. In conclusion, these data suggested that geraniin had therapeutic effects in LPS-induced ALI by inhibiting NF-κB and activating Nrf2 signaling pathways.

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Research Papers:

Geraniin attenuates LPS-induced acute lung injury via inhibiting NF-κB and activating Nrf2 signaling pathways

Abstract