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Alveolar macrophage-derived microvesicles mediate acute lung injury
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  • Published on:
    Extracellular Vesicles Research in Lipopolysaccharide-induced Acute Lung Injury Model
    • Duo Zhang, Pulmonary Center Boston University School of Medicine
    • Other Contributors:
      • Heedoo Lee, Pulmonary Center
      • Yang Jin, Pulmonary Center

    Dear Editors,
    We are writing to comment on the work entitled “Alveolar macrophage-derived microvesicles mediate acute lung injury” published by Dr. Soni et al on Thorax 2016; 71:1020-1029[1].

    Our group focuses on lung extracellular vesicle (EV) research and also studied the inhaled LPS-induced EVs in mouse models. Based on our experience, we raise the following comments to the work done by Dr. Soni et al and wish to draw attentions to future EV researchers. EV research is a novel field and carries a promising potential for the development of diagnostic and therapeutic agents. However, given the early stage of EV research, particular in the field of lung injury, the consistency of results relies largely on the precise techniques used in the isolation and characterization of these vesicles.

    Briefly, EV is currently classified into three major categories per the definition of Society of extracellular vesicle research [2]. Apoptotic bodies (ABs) are the largest sizes of EVs usually larger than 1 µm and often resulted from cell death. Microvesicles (MVs) are the middle sized EVs (200 nm-1 µm) and are generated via plasma membrane budding. Exosomes (Exos) are the smallest EVs (less than 200 nm) and often generated from IVB-ER-Golgi system. Due to the different mechanisms of generation, MVs and Exos usually favor different compositions and subsequently may carry differential downstream biological functions[3 4]. For example, Exos have been reported to carry t...

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    Conflict of Interest:
    None declared.