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  • Title: Zerumbone from Zingiber zerumbet Ameliorates Lipopolysaccharide-Induced ICAM-1 and Cytokines Expression via p38 MAPK/JNK-IκB/NF-κB Pathway in Mouse Model of Acute Lung Injury.
    Author: Lee CY, Chen SP, Su CH, Ho YC, Yang ML, Lee SS, Huang-Liu R, Yang CP, Chen CJ, Kuan YH.
    Journal: Chin J Physiol; 2018 Jun; 61(3):171-180. PubMed ID: 29962177.
    Abstract:
    Acute lung injury (ALI) is a clinical syndrome with high morbidity and mortality rates mainly caused by Gram-negative bacteria. Nevertheless, an effective treatment strategy for ALI is yet to be developed. Zerumbone, a sesquiterpene isolated from Zingiber zerumbet Smith, possesses several advantageous bioeffects such as antioxidation, anti-inflammation, and antiulcer. Pretreatment of zerumbone inhibited lipopolysaccharide (LPS)-induced arterial blood gas exchange, neutrophils infiltration, and increased pulmonary vascular permeability. LPS-induced expression of intercellular adhesion molecule-1 (ICAM-1) was inhibited by zerumbone at a lower concentration than that of vascular cell adhesion molecule-1 (VCAM-1). In addition, proinflammatory cytokines, such as interleukin (IL)-1β and macrophage inflammatory protein (MIP)-2 were suppressed by zerumbone. The phosphorylation of nuclear factor (NF)-κB, a proinflammatory transcription factor, and degradation of inhibitor of κB (IκB), an inhibitor of NF-κB, were also reduced by zerumbone. Furthermore, we found the inhibitory concentration of zerumbone on phosphorylation of p38 mitogen-activated protein kinase (MAPK) and c-Jun NH2-terminal kinase (JNK) was lower than that of extracellular signal-regulated kinase (ERK). In conclusion, zerumbone could be a potential protective agent for ALI, possibly via expression of ICAM-1, IL-1β, and MIP-2. The protective mechanism of zerumbone was by reversing the activation of p38 MAPK/JNK-IκB/NF-κB pathway.
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