Entry inhibition of HSV-1 and -2 protects mice from viral lethal challenge

The present study focused on inhibition of HSV-1 and -2 replication and pathogenesis in vitro and in vivo, through the selective targeting of the envelope glycoprotein D. Firstly, a human monoclonal antibody (Hu-mAb#33) was identified that could neutralise both HSV-1 and -2 at nM concentrations, inc...

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Bibliographic Details
Main Authors: Clementi, Nicola, Criscuolo, Elena, Cappelletti, Francesca, Quaranta, Paola, Pistello, Mauro, Diotti, Roberta A., Sautto, Giuseppe A., Tarr, Alexander W., Mailland, Federico, Concas, Daniela, Burioni, Roberto, Clementi, Massimo, Mancini, Nicasio
Format: Article
Published: Elsevier 2017
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Online Access:https://eprints.nottingham.ac.uk/46065/
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Summary:The present study focused on inhibition of HSV-1 and -2 replication and pathogenesis in vitro and in vivo, through the selective targeting of the envelope glycoprotein D. Firstly, a human monoclonal antibody (Hu-mAb#33) was identified that could neutralise both HSV-1 and -2 at nM concentrations, including clinical isolates from patients affected by different clinical manifestations and featuring different susceptibility to acyclovir in vitro. Secondly, the potency of inhibition of both infection by cell-free viruses and cell-to-cell virus transmission was also assessed. Finally, mice receiving a single systemic injection of Hu-mAb#33 were protected from death and severe clinical manifestations following both ocular and vaginal HSV-1 and -2 lethal challenge. These results pave the way for further studies reassessing the importance of HSV entry as a novel target for therapeutic intervention and inhibition of cell-to-cell virus transmission.