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2020 ; 594
(11
): 1651-1660
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SARS-CoV-2 spike glycoprotein-binding proteins expressed by upper respiratory
tract bacteria may prevent severe viral infection
#MMPMID32449939
Honarmand Ebrahimi K
FEBS Lett
2020[Jun]; 594
(11
): 1651-1660
PMID32449939
show ga
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a major
global challenge. The virus infects host cells using its spike glycoprotein
(S-protein) and has significantly higher infectivity and mortality rates among
the aged population. Here, based on bioinformatic analysis, I provide evidence
that some members of the upper respiratory tract (URT) commensal bacteria express
viral S-protein -binding proteins. Based on this analysis and available data
showing a decline in the population of these bacteria in the elderly, I propose
that some URT commensal bacteria hamper SARS-CoV-2 infectivity and that a decline
in the population of these bacteria contributes to the severity of infection.
Further studies should provide a better understanding of the interaction of URT
bacteria and SARS-CoV-2, which may lead to new therapeutic approaches.