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10.1038/s41392-021-00726-w

http://scihub22266oqcxt.onion/10.1038/s41392-021-00726-w
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34408131!8371950!34408131
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suck abstract from ncbi


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pmid34408131      Signal+Transduct+Target+Ther 2021 ; 6 (1): 308
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  • HIF-1alpha promotes SARS-CoV-2 infection and aggravates inflammatory responses to COVID-19 #MMPMID34408131
  • Tian M; Liu W; Li X; Zhao P; Shereen MA; Zhu C; Huang S; Liu S; Yu X; Yue M; Pan P; Wang W; Li Y; Chen X; Wu K; Luo Z; Zhang Q; Wu J
  • Signal Transduct Target Ther 2021[Aug]; 6 (1): 308 PMID34408131show ga
  • Cytokine storm induced by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a major pathological feature of Coronavirus Disease 2019 (COVID-19) and a crucial determinant in COVID-19 prognosis. Understanding the mechanism underlying the SARS-CoV-2-induced cytokine storm is critical for COVID-19 control. Here, we identify that SARS-CoV-2 ORF3a and host hypoxia-inducible factor-1alpha (HIF-1alpha) play key roles in the virus infection and pro-inflammatory responses. RNA sequencing shows that HIF-1alpha signaling, immune response, and metabolism pathways are dysregulated in COVID-19 patients. Clinical analyses indicate that HIF-1alpha production, inflammatory responses, and high mortalities occurr in elderly patients. HIF-1alpha and pro-inflammatory cytokines are elicited in patients and infected cells. Interestingly, SARS-CoV-2 ORF3a induces mitochondrial damage and Mito-ROS production to promote HIF-1alpha expression, which subsequently facilitates SARS-CoV-2 infection and cytokines production. Notably, HIF-1alpha also broadly promotes the infection of other viruses. Collectively, during SARS-CoV-2 infection, ORF3a induces HIF-1alpha, which in turn aggravates viral infection and inflammatory responses. Therefore, HIF-1alpha plays an important role in promoting SARS-CoV-2 infection and inducing pro-inflammatory responses to COVID-19.
  • |*Signal Transduction[MESH]
  • |A549 Cells[MESH]
  • |Animals[MESH]
  • |COVID-19/*metabolism[MESH]
  • |Chlorocebus aethiops[MESH]
  • |HEK293 Cells[MESH]
  • |HeLa Cells[MESH]
  • |Humans[MESH]
  • |Hypoxia-Inducible Factor 1, alpha Subunit/*metabolism[MESH]
  • |Mitochondria/*metabolism/pathology[MESH]
  • |RNA-Seq[MESH]
  • |SARS-CoV-2/*metabolism[MESH]
  • |THP-1 Cells[MESH]
  • |Vero Cells[MESH]


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