PSGL-1 blocks SARS-CoV-2 S protein-mediated virus attachment and infection of target cells
He, S.; Hetrick, B.; Dabbagh, D.; Akhrymuk, I. V.; Kehn-Hall, K.; Freed, E. O.; Wu, Y.
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P-selectin glycoprotein ligand-1 (PSGL-1) is a cell surface glycoprotein that binds to P-, E-, and L-selectins to mediate the tethering and rolling of immune cells on the surface of the endothelium for cell migration into inflamed tissues. PSGL-1 has been identified as an interferon-γ (INF-γ)-regulated factor that restricts HIV-1 infectivity, and has recently been found to possess broad-spectrum antiviral activities. Here we report that the expression of PSGL-1 in virus-producing cells impairs the incorporation of SARS-CoV and SARS-CoV-2 spike (S) glycoproteins into pseudovirions and blocks virus attachment and infection of target cells. These findings suggest that PSGL-1 may potentially inhibit coronavirus replication in PSGL-1+ cells.Competing Interest StatementThe authors have declared no competing interest.View Full Text
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