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Macrophage Activation Marker Soluble CD163 Associated with Fatal and Severe Ebola Virus Disease in Humans

机译:与人类致命和严重埃博拉病毒病相关的巨噬细胞活化标志物可溶性CD163

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Ebola virus disease (EVD) is associated with elevated cytokine levels, and hypercytokinemia is more pronounced in fatal cases. This type of hyperinflammatory state is reminiscent of 2 rheumatologic disorders known as macrophage activation syndrome and hemophagocytic lymphohistiocytosis, which are characterized by macrophage and T-cell activation. An evaluation of 2 cohorts of patients with EVD revealed that a marker of macrophage activation (sCD163) but not T-cell activation (sCD25) was associated with severe and fatal EVD. Furthermore, substantial immunoreactivity of host tissues to a CD163-specific antibody, predominantly in areas of extensive immunostaining for Ebola virus antigens, was observed in fatal cases. These data suggest that host macrophage activation contributes to EVD pathogenesis and that directed antiinflammatory therapies could be beneficial in the treatment of EVD.
机译:埃博拉病毒病(EVD)与细胞因子水平升高相关,在致命病例中高细胞血症更为明显。这种类型的过度炎症状态使人联想到2种风湿病,称为巨噬细胞活化综合征和噬血细胞淋巴组织细胞增生症,其特征是巨噬细胞和T细胞活化。对2例EVD患者的评估显示,巨噬细胞活化(sCD163)而非T细胞活化(sCD25)的标志物与严重而致命的EVD相关。此外,在致命病例中,主要在埃博拉病毒抗原的广泛免疫染色领域中,观察到宿主组织对CD163特异性抗体的实质免疫反应。这些数据表明宿主巨噬细胞的激活有助于EVD的发病机理,定向抗炎疗法可能对EVD的治疗有益。

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