Abstract

Human PSGL-1 is a receptor for EV71 that facilitates EV71 entry and replication in mouse cells. We have evaluated the role of human PSGL-1 in EV71 infection in vivo using a transgenic mouse line. Expression of human PSGL-1 failed to enhance infectivity of clinical EV71 strains in mice; however, it promoted replication and symptom severity at an earlier stage in mice upon infection with a mouse-adapted EV71 strain. We therefore conclude that human PSGL-1 alone is not sufficient to modulate infection with the clinical EV71 strains of genotype C4 in mice.

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