Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut , Greifswald - Insel Riems, Germany.
Center of Scientific Excellence for Influenza Viruses, National Research Centre, Water Pollution Research Department, Dokki , Giza, Egypt.
Microbiol Spectr. 2024 Jan 11;12(1):e0246923. doi: 10.1128/spectrum.02469-23. Epub 2023 Nov 27.
We present the first study of the 3D kinetics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the early host response in a large lung volume using a combination of tissue imaging and transcriptomics. This approach allowed us to make a number of important findings: Spatially restricted antiviral response is shown, including the formation of monocytic macrophage clusters and upregulation of the major histocompatibility complex II in infected epithelial cells. The monocyte-derived macrophages are linked to SARS-CoV-2 clearance, and the appearance of these cells is associated with post-infection endothelial damage; thus, we shed light on the role of these cells in infected tissue. An early onset of tissue repair occurring simultaneously with inflammatory and necrotizing processes provides the basis for longer-term alterations in the lungs.
我们首次利用组织成像和转录组学相结合的方法,研究了严重急性呼吸综合征冠状病毒 2(SARS-CoV-2)在大容量肺部中的三维感染动力学和早期宿主反应。这种方法使我们能够得出一些重要的发现:显示出空间受限的抗病毒反应,包括单核细胞衍生的巨噬细胞簇的形成和感染上皮细胞中主要组织相容性复合体 II 的上调。单核细胞衍生的巨噬细胞与 SARS-CoV-2 的清除有关,这些细胞的出现与感染后内皮损伤有关;因此,我们揭示了这些细胞在感染组织中的作用。同时发生的炎症和坏死过程中的早期组织修复为肺部的长期改变提供了基础。