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Chest. Repair of lipopolysaccharide-induced acute lung injury in mice by endothelial progenitor cells, alone and in combination with simvastatin

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  • Chest. Repair of lipopolysaccharide-induced acute lung injury in mice by endothelial progenitor cells, alone and in combination with simvastatin

    [Source: Chest, full text: (LINK). Abstract, edited.]
    Original Research | March 28, 2013

    Repair of lipopolysaccharide-induced acute lung injury in mice by endothelial progenitor cells, alone and in combination with simvastatin


    Hao Li; Yong Qiang; Lian Wang; Gaoming Wang; Jun Yi; Hua Jing; Haiwei Wu

    Author and Funding Information: Department of Cardiothoracic Surgery, Jinling Hospital, Clinical Medicine School of Nanjing University (Li, Qiang, Lian Wang,Yi, Jing, Wu); Xuzhou Central Hospital, Department of Cardiothoracic Surgery (Gaoming Wang).

    Corresponding author: Haiwei Wu, 305 Zhongshan East Road, Nanjing, China. E-mail: wuhaiweicts@163.com.

    Funding information: This study was supported by research grants from the Natural Science Foundation of China (NSFC).

    Chest. 2013. doi:10.1378/chest.12-2429 - Published online


    Abstract

    Background:

    Endothelial progenitor cells (EPCs) are involved in endothelium repair of acute lung injury (ALI). Numerous studies have demonstrated that statins can promote EPCs function in vitro and in vivo; therefore, the purpose of this study was to determine whether simvastatin enhances the function of EPCs participating in the repair of ALI.


    Methods:

    BALB/C mice were initially pretreated with simvastatin by intraperitoneal administration 24 h before, and again at the time of, intratracheal instillation of lipopolysaccharide (LPS), and subsequently treated with EPCs by intravenous transplantation 2 h later. The effects of capillary permeability, endothelium repair, and inflammatory cytokines were measured.


    Results:

    This study revealed that both simvastatin administration and EPCs transplantation can reduce the severity of LPS-induced ALI in mice, and the effect can be further improved by combining the 2 therapies.


    Conclusion:

    The administration of simvastatin and EPCs transplantation can reduce the severity of LPS-induced ALI in mice, and improvement is moderately enhanced in some respects when EPCs transplantation is combined with simvastatin administration. The beneficial role of simvastatin on EPCs may be a component of its pleiotropic effects. Although the exact mechanism remains unknown, the combined administration of simvastatin and EPCs transplantation may be a potentially important cell-based, inflammatory-mediated therapy for patients with ALI/ARDS.
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