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Mesenchymal stromal cell-derived nanovesicles ameliorate bacterial outer membrane vesicle-induced sepsis via IL-10

机译:间质基质细胞衍生的纳米囊泡通过IL-10改善细菌外膜囊泡诱导的败血症

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摘要

BackgroundSepsis remains a source of high mortality in hospitalized patients despite proper antibiotic approaches. Encouragingly, mesenchymal stromal cells (MSCs) and their produced extracellular vesicles (EVs) have been shown to elicit anti-inflammatory effects in multiple inflammatory conditions including sepsis. However, EVs are generally released from mammalian cells in relatively low amounts, and high-yield isolation of EVs is still challenging due to a complicated procedure. To get over these limitations, vesicles very similar to EVs can be produced by serial extrusions of cells, after which they are called nanovesicles (NVs). We hypothesized that MSC-derived NVs can attenuate the cytokine storm induced by bacterial outer membrane vesicles (OMVs) in mice, and we aimed to elucidate the mechanism involved.
机译:尽管采取了适当的抗生素治疗方法,败血症仍然是住院患者高死亡率的原因。令人鼓舞的是,间充质基质细胞(MSCs)及其产生的细胞外囊泡(EVs)已显示出在包括脓毒症在内的多种炎症条件下引发抗炎作用。然而,EV通常以相对较低的量从哺乳动物细胞中释放,并且由于程序复杂,EV的高产率分离仍然具有挑战性。为了克服这些限制,可以通过连续挤压细胞来生产与电动汽车非常相似的囊泡,之后将其称为纳米囊泡(NV)。我们假设MSC衍生的NVs可以减弱小鼠细菌外膜囊泡(OMV)诱导的细胞因子风暴,并且我们旨在阐明涉及的机制。

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