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10.3389/fimmu.2021.741502

http://scihub22266oqcxt.onion/10.3389/fimmu.2021.741502
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34671355!8521106!34671355
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suck abstract from ncbi


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pmid34671355      Front+Immunol 2021 ; 12 (ä): 741502
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  • Defining the Innate Immune Responses for SARS-CoV-2-Human Macrophage Interactions #MMPMID34671355
  • Abdelmoaty MM; Yeapuri P; Machhi J; Olson KE; Shahjin F; Kumar V; Zhou Y; Liang J; Pandey K; Acharya A; Byrareddy SN; Mosley RL; Gendelman HE
  • Front Immunol 2021[]; 12 (ä): 741502 PMID34671355show ga
  • Host innate immune response follows severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, and it is the driver of the acute respiratory distress syndrome (ARDS) amongst other inflammatory end-organ morbidities. Such life-threatening coronavirus disease 2019 (COVID-19) is heralded by virus-induced activation of mononuclear phagocytes (MPs; monocytes, macrophages, and dendritic cells). MPs play substantial roles in aberrant immune secretory activities affecting profound systemic inflammation and end-organ malfunctions. All follow the presence of persistent viral components and virions without evidence of viral replication. To elucidate SARS-CoV-2-MP interactions we investigated transcriptomic and proteomic profiles of human monocyte-derived macrophages. While expression of the SARS-CoV-2 receptor, the angiotensin-converting enzyme 2, paralleled monocyte-macrophage differentiation, it failed to affect productive viral infection. In contrast, simple macrophage viral exposure led to robust pro-inflammatory cytokine and chemokine expression but attenuated type I interferon (IFN) activity. Both paralleled dysregulation of innate immune signaling pathways, specifically those linked to IFN. We conclude that the SARS-CoV-2-infected host mounts a robust innate immune response characterized by a pro-inflammatory storm heralding end-organ tissue damage.
  • |*Immunity, Innate/genetics[MESH]
  • |Angiotensin-Converting Enzyme 2/genetics/metabolism[MESH]
  • |COVID-19/immunology/metabolism/*virology[MESH]
  • |Cells, Cultured[MESH]
  • |Cytokines/genetics/metabolism[MESH]
  • |Gene Expression Profiling[MESH]
  • |Gene Regulatory Networks[MESH]
  • |Host-Pathogen Interactions[MESH]
  • |Humans[MESH]
  • |Inflammation Mediators/metabolism[MESH]
  • |Macrophages/immunology/metabolism/*virology[MESH]
  • |Proteome[MESH]
  • |Proteomics[MESH]
  • |Receptors, Virus/genetics/metabolism[MESH]
  • |SARS-CoV-2/immunology/*pathogenicity[MESH]
  • |Signal Transduction[MESH]


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