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10.1172/jci.insight.148999

http://scihub22266oqcxt.onion/10.1172/jci.insight.148999
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34291736!8410055!34291736
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suck abstract from ncbi


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pmid34291736      JCI+Insight 2021 ; 6 (14): ä
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  • L-SIGN is a receptor on liver sinusoidal endothelial cells for SARS-CoV-2 virus #MMPMID34291736
  • Kondo Y; Larabee JL; Gao L; Shi H; Shao B; Hoover CM; McDaniel JM; Ho YC; Silasi-Mansat R; Archer-Hartmann SA; Azadi P; Srinivasan RS; Rezaie AR; Borczuk A; Laurence JC; Lupu F; Ahamed J; McEver RP; Papin JF; Yu Z; Xia L
  • JCI Insight 2021[Jul]; 6 (14): ä PMID34291736show ga
  • Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), remains a pandemic. Severe disease is associated with dysfunction of multiple organs, but some infected cells do not express ACE2, the canonical entry receptor for SARS-CoV-2. Here, we report that the C-type lectin receptor L-SIGN interacted in a Ca2+-dependent manner with high-mannose-type N-glycans on the SARS-CoV-2 spike protein. We found that L-SIGN was highly expressed on human liver sinusoidal endothelial cells (LSECs) and lymph node lymphatic endothelial cells but not on blood endothelial cells. Using high-resolution confocal microscopy imaging, we detected SARS-CoV-2 viral proteins within the LSECs from liver autopsy samples from patients with COVID-19. We found that both pseudo-typed virus enveloped with SARS-CoV-2 spike protein and authentic SARS-CoV-2 virus infected L-SIGN-expressing cells relative to control cells. Moreover, blocking L-SIGN function reduced CoV-2-type infection. These results indicate that L-SIGN is a receptor for SARS-CoV-2 infection. LSECs are major sources of the clotting factors vWF and factor VIII (FVIII). LSECs from liver autopsy samples from patients with COVID-19 expressed substantially higher levels of vWF and FVIII than LSECs from uninfected liver samples. Our data demonstrate that L-SIGN is an endothelial cell receptor for SARS-CoV-2 that may contribute to COVID-19-associated coagulopathy.
  • |*COVID-19/metabolism/pathology/virology[MESH]
  • |*Capillaries/metabolism/pathology/virology[MESH]
  • |*Endothelial Cells/metabolism/pathology/virology[MESH]
  • |*Lymphatic Vessels/metabolism/pathology/virology[MESH]
  • |Cell Adhesion Molecules/*metabolism[MESH]
  • |Gene Expression Profiling/methods[MESH]
  • |Humans[MESH]
  • |Lectins, C-Type/*metabolism[MESH]
  • |Liver/*blood supply/pathology[MESH]
  • |Receptors, Cell Surface/*metabolism[MESH]
  • |SARS-CoV-2/*physiology[MESH]
  • |Spike Glycoprotein, Coronavirus[MESH]


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