Abstract
The causative agent of coronavirus disease 2019 (COVID-19) is the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). For many viruses, tissue tropism is determined by the availability of virus receptors and entry cofactors on the surface of host cells. In this study, we found that neuropilin-1 (NRP1), known to bind furin-cleaved substrates, significantly potentiates SARS-CoV-2 infectivity, an effect blocked by a monoclonal blocking antibody against NRP1. A SARS-CoV-2 mutant with an altered furin cleavage site did not depend on NRP1 for infectivity. Pathological analysis of olfactory epithelium obtained from human COVID-19 autopsies revealed that SARS-CoV-2 infected NRP1-positive cells facing the nasal cavity. Our data provide insight into SARS-CoV-2 cell infectivity and define a potential target for antiviral intervention.
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Angiotensin-Converting Enzyme 2
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Animals
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Antibodies, Monoclonal / immunology
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Betacoronavirus / genetics
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Betacoronavirus / physiology*
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COVID-19
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Caco-2 Cells
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Coronavirus Infections / virology*
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Female
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HEK293 Cells
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Host Microbial Interactions
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Humans
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Lung / metabolism
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Male
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Metal Nanoparticles
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Mice
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Mice, Inbred C57BL
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Mutation
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Neuropilin-1 / chemistry
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Neuropilin-1 / genetics
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Neuropilin-1 / immunology
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Neuropilin-1 / metabolism*
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Neuropilin-2 / metabolism
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Olfactory Mucosa / metabolism
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Olfactory Mucosa / virology
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Pandemics
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Peptide Fragments / metabolism
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Peptidyl-Dipeptidase A / genetics
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Peptidyl-Dipeptidase A / metabolism
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Pneumonia, Viral / virology*
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Protein Binding
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Protein Domains
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Respiratory Mucosa / metabolism
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SARS-CoV-2
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Serine Endopeptidases / genetics
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Serine Endopeptidases / metabolism
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Spike Glycoprotein, Coronavirus / chemistry
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Spike Glycoprotein, Coronavirus / metabolism*
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Virus Internalization*
Substances
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Antibodies, Monoclonal
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NRP1 protein, human
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Neuropilin-2
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Peptide Fragments
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Spike Glycoprotein, Coronavirus
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neuropilin-2, human
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spike protein, SARS-CoV-2
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Neuropilin-1
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Peptidyl-Dipeptidase A
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ACE2 protein, human
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Ace2 protein, mouse
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Angiotensin-Converting Enzyme 2
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Serine Endopeptidases
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TMPRSS2 protein, human