Article ; Online: SARS-CoV-2 Spike Targets USP33-IRF9 Axis
2021 Volume 12, Page(s) 656700
Abstract: SARS-CoV-2, the novel coronavirus infection has consistently shown an association with neurological anomalies in patients, in addition to its usual respiratory distress syndrome. Multi-organ dysfunctions including neurological sequelae during COVID-19 ... ...
Abstract | SARS-CoV-2, the novel coronavirus infection has consistently shown an association with neurological anomalies in patients, in addition to its usual respiratory distress syndrome. Multi-organ dysfunctions including neurological sequelae during COVID-19 persist even after declining viral load. We propose that SARS-CoV-2 gene product, Spike, is able to modify the host exosomal cargo, which gets transported to distant uninfected tissues and organs and can initiate a catastrophic immune cascade within Central Nervous System (CNS). SARS-CoV-2 Spike transfected cells release a significant amount of exosomes loaded with microRNAs such as miR-148a and miR-590. microRNAs gets internalized by human microglia and suppress target gene expression of USP33 (Ubiquitin Specific peptidase 33) and downstream IRF9 levels. Cellular levels of USP33 regulate the turnover time of IRF9 |
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MeSH term(s) | COVID-19/genetics ; COVID-19/metabolism ; COVID-19/physiopathology ; COVID-19/virology ; Cell Line ; Central Nervous System/immunology ; Central Nervous System/physiopathology ; Central Nervous System/virology ; Endopeptidases/metabolism ; Exosomes/genetics ; Exosomes/metabolism ; Exosomes/pathology ; Humans ; Inflammation/immunology ; Inflammation/virology ; Interferon-Stimulated Gene Factor 3, gamma Subunit/metabolism ; Interferon-beta/metabolism ; MicroRNAs/genetics ; MicroRNAs/metabolism ; Microglia/metabolism ; Microglia/pathology ; NF-kappa B/metabolism ; Protein Stability ; SARS-CoV-2/metabolism ; Spike Glycoprotein, Coronavirus/metabolism ; Tumor Necrosis Factor-alpha/metabolism ; Ubiquitin Thiolesterase/metabolism |
Chemical Substances | IRF9 protein, human ; Interferon-Stimulated Gene Factor 3, gamma Subunit ; MIRN148 microRNA, human ; MIRN590 microRNA, human ; MicroRNAs ; NF-kappa B ; Spike Glycoprotein, Coronavirus ; Tumor Necrosis Factor-alpha ; spike protein, SARS-CoV-2 ; Interferon-beta (77238-31-4) ; Endopeptidases (EC 3.4.-) ; USP33 protein, human (EC 3.4.19.12) ; Ubiquitin Thiolesterase (EC 3.4.19.12) ; ubiquitin isopeptidase (EC 3.4.99.-) |
Language | English |
Publishing date | 2021-04-14 |
Publishing country | Switzerland |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2606827-8 |
ISSN | 1664-3224 ; 1664-3224 |
ISSN (online) | 1664-3224 |
ISSN | 1664-3224 |
DOI | 10.3389/fimmu.2021.656700 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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