
| 10.3390/ijms22136764
http://scihub22266oqcxt.onion/10.3390/ijms22136764
 34201797!8269070!34201797
free
free
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Int+J+Mol+Sci 2021 ; 22 (13): � Nephropedia Template TP
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Dexamethasone for Severe COVID-19: How Does It Work at Cellular and Molecular Levels? #MMPMID34201797Kino T; Burd I; Segars JHInt J Mol Sci 2021[Jun]; 22 (13): � PMID34201797show ga
The coronavirus disease 2019 (COVID-19) caused by infection of the severe respiratory syndrome coronavirus-2 (SARS-CoV-2) significantly impacted human society. Recently, the synthetic pure glucocorticoid dexamethasone was identified as an effective compound for treatment of severe COVID-19. However, glucocorticoids are generally harmful for infectious diseases, such as bacterial sepsis and severe influenza pneumonia, which can develop respiratory failure and systemic inflammation similar to COVID-19. This apparent inconsistency suggests the presence of pathologic mechanism(s) unique to COVID-19 that renders this steroid effective. We review plausible mechanisms and advance the hypothesis that SARS-CoV-2 infection is accompanied by infected cell-specific glucocorticoid insensitivity as reported for some other viruses. This alteration in local glucocorticoid actions interferes with undesired glucocorticoid to facilitate viral replication but does not affect desired anti-inflammatory properties in non-infected organs/tissues. We postulate that the virus coincidentally causes glucocorticoid insensitivity in the process of modulating host cell activities for promoting its replication in infected cells. We explore this tenet focusing on SARS-CoV-2-encoding proteins and potential molecular mechanisms supporting this hypothetical glucocorticoid insensitivity unique to COVID-19 but not characteristic of other life-threatening viral diseases, probably due to a difference in specific virally-encoded molecules and host cell activities modulated by them.|*COVID-19 Drug Treatment[MESH]|Antiviral Agents/*pharmacology[MESH]|Dexamethasone/*pharmacology[MESH]|Host Microbial Interactions[MESH]|Humans[MESH]|Hypothalamo-Hypophyseal System/*physiology[MESH]|Immunity, Innate[MESH]|Inflammation/*drug therapy[MESH]|SARS-CoV-2/drug effects/physiology[MESH]|Severity of Illness Index[MESH]
  
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