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Updated: Apr 17, 2026

Porcine Corneal Tissue Explant to Study the Efficacy of Herpes Simplex Virus-1 Antivirals
Published on: September 20, 2021
In vitro inhibition of caprine herpesvirus 1 by acyclovir and mizoribine
1Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy.
Abstract:
Caprine herpesvirus 1 (CpHV-1) infection in goats induces genital vesicular-ulcerative lesions that strictly resemble the lesions induced by herpesvirus 2 in the human host. The immunosuppressive drug Mizoribine (MIZ) was found to increase the antiviral activity of Acyclovir (ACV) against herpesvirus infections, raising interesting perspectives on new combined therapeutic strategies. In this study the anti-CpHV-1 activity in vitro of ACV alone or in combination with MIZ was characterized. When applied alone at non-toxic concentrations, ACV had a slight effect on CpHV-1 replication while in combination with MIZ a dose-dependent inhibition of the virus yield was observed with an IC50 of ACV of 28.5 µM. These findings suggest that combined therapy of ACV and MIZ is potentially exploitable in the treatment of genital infection by herpesviruses.
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