Age-related differences in SARS-CoV-2 binding factors: An explanation for reduced susceptibility to severe COVID-19 among children?
ACE2
COVID-19
Furin
Paediatric
SARS-CoV-2
TMPRSS2
Journal
Paediatric respiratory reviews
ISSN: 1526-0550
Titre abrégé: Paediatr Respir Rev
Pays: England
ID NLM: 100898941
Informations de publication
Date de publication:
Dec 2022
Dec 2022
Historique:
received:
08
11
2021
revised:
07
01
2022
accepted:
12
01
2022
pubmed:
2
3
2022
medline:
15
12
2022
entrez:
1
3
2022
Statut:
ppublish
Résumé
In contrast with other respiratory viruses, children infected with SARS-CoV-2 are largely spared from severe COVID-19. To critically assess age-related differences in three host proteins involved in SARS-CoV-2 cellular entry: angiotensin-converting enzyme 2 (ACE2), transmembrane serine protease 2 (TMPRSS2) and furin. We systematically searched Medline, Embase, and PubMed databases for relevant publications. Studies were eligible if they evaluated ACE2, TMPRSS2 or furin expression, methylation, or protein level in children. Sixteen papers were included. Age-dependent differences in membrane-bound and soluble ACE2 were shown in several studies, with ACE2 expression increasing with age. TMPRSS2 and furin are key proteases involved in SARS-CoV-2 spike protein cleavage. TMPRSS2 expression is increased by circulating androgens and is thus low in pre-pubertal children. Furin has not currently been well researched. High levels of study heterogeneity. Low expression of key host proteins may partially explain the reduced incidence of severe COVID-19 among children, although further research is needed.
Identifiants
pubmed: 35227628
pii: S1526-0542(22)00009-4
doi: 10.1016/j.prrv.2022.01.008
pmc: PMC8823960
pii:
doi:
Substances chimiques
spike protein, SARS-CoV-2
0
Peptidyl-Dipeptidase A
EC 3.4.15.1
Spike Glycoprotein, Coronavirus
0
Types de publication
Systematic Review
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
61-69Informations de copyright
Copyright © 2022 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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