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  • A molecular single-cell lung atlas of lethal COVID-19 #MMPMID33915568
  • Melms JC; Biermann J; Huang H; Wang Y; Nair A; Tagore S; Katsyv I; Rendeiro AF; Amin AD; Schapiro D; Frangieh CJ; Luoma AM; Filliol A; Fang Y; Ravichandran H; Clausi MG; Alba GA; Rogava M; Chen SW; Ho P; Montoro DT; Kornberg AE; Han AS; Bakhoum MF; Anandasabapathy N; Suarez-Farinas M; Bakhoum SF; Bram Y; Borczuk A; Guo XV; Lefkowitch JH; Marboe C; Lagana SM; Del Portillo A; Tsai EJ; Zorn E; Markowitz GS; Schwabe RF; Schwartz RE; Elemento O; Saqi A; Hibshoosh H; Que J; Izar B
  • Nature 2021[Jul]; 595 (7865): 114-119 PMID33915568show ga
  • Respiratory failure is the leading cause of death in patients with severe SARS-CoV-2 infection(1,2), but the host response at the lung tissue level is poorly understood. Here we performed single-nucleus RNA sequencing of about 116,000 nuclei from the lungs of nineteen individuals who died of COVID-19 and underwent rapid autopsy and seven control individuals. Integrated analyses identified substantial alterations in cellular composition, transcriptional cell states, and cell-to-cell interactions, thereby providing insight into the biology of lethal COVID-19. The lungs from individuals with COVID-19 were highly inflamed, with dense infiltration of aberrantly activated monocyte-derived macrophages and alveolar macrophages, but had impaired T cell responses. Monocyte/macrophage-derived interleukin-1beta and epithelial cell-derived interleukin-6 were unique features of SARS-CoV-2 infection compared to other viral and bacterial causes of pneumonia. Alveolar type 2 cells adopted an inflammation-associated transient progenitor cell state and failed to undergo full transition into alveolar type 1 cells, resulting in impaired lung regeneration. Furthermore, we identified expansion of recently described CTHRC1(+) pathological fibroblasts(3) contributing to rapidly ensuing pulmonary fibrosis in COVID-19. Inference of protein activity and ligand-receptor interactions identified putative drug targets to disrupt deleterious circuits. This atlas enables the dissection of lethal COVID-19, may inform our understanding of long-term complications of COVID-19 survivors, and provides an important resource for therapeutic development.
  • |*Single-Cell Analysis[MESH]
  • |Aged[MESH]
  • |Aged, 80 and over[MESH]
  • |Alveolar Epithelial Cells/pathology/virology[MESH]
  • |Atlases as Topic[MESH]
  • |Autopsy[MESH]
  • |COVID-19/immunology/*pathology/*virology[MESH]
  • |Case-Control Studies[MESH]
  • |Female[MESH]
  • |Fibroblasts/pathology[MESH]
  • |Fibrosis/pathology/virology[MESH]
  • |Humans[MESH]
  • |Inflammation/pathology/virology[MESH]
  • |Lung/*pathology[MESH]
  • |Macrophages, Alveolar/pathology/virology[MESH]
  • |Macrophages/pathology/virology[MESH]
  • |Male[MESH]
  • |Middle Aged[MESH]
  • |Plasma Cells/immunology[MESH]
  • |SARS-CoV-2/*pathogenicity[MESH]
  • |T-Lymphocytes/immunology[MESH]

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  • suck abstract from ncbi

    114 7865.595 2021