The helicase primase inhibitor, BAY 57-1293 shows potent therapeutic antiviral activity superior to famciclovir in BALB/c mice infected with herpes simplex virus type 1.

Biswas, Subhajit and Jennens, Lyn and Field, Hugh J. (2007) The helicase primase inhibitor, BAY 57-1293 shows potent therapeutic antiviral activity superior to famciclovir in BALB/c mice infected with herpes simplex virus type 1. Antiviral Research, 75 (1). pp. 30-35. ISSN 0166-3542

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Item Type:Article
Item Status:Live Archive

Abstract

BAY 57-1293 represents a new class of potent inhibitors of herpes simplex virus (HSV) that target the virus helicase primase complex. The present study was conducted using the zosteriform infection model in BALB/c mice. The helicase primase inhibitor, BAY 57-1293 was shown to be highly efficacious in this model. The beneficial effects of therapy were obtained rapidly (within 2 days) although the onset of treatment was delayed for 1 day after virus inoculation. The compound given orally, or intraperitoneally once per day at a dose of 15 mg/kg for 4 successive days was equally effective or superior to a much higher dose of famciclovir (1mg/ml, i.e. approximately 140-200mg/kg/day) given in the drinking water for 7 consecutive days, which, in our hands, is the most effective method for administering famciclovir to mice. In contrast to the vehicle-treated infected mice, all mice that received antiviral therapy looked normal and active with no mortality, no detectable loss of weight and no marked change in ear thickness. BAY 57-1293 and famciclovir reduced the virus titers in the skin to below the level of detection by days 3 and 7 post infection, respectively. In both BAY 57-1293 and famciclovir-treated mice, infectious virus titers in the ear pinna and brainstem remained below the level of detection. Consistent with these findings, BAY 57-1293 also showed a potent antiviral effect in an experiment involving a small number of severely immunocompromised athymic-nude BALB/c mice.

Keywords:Antiviral, DNA virus, Animal model, Mouse model, Virus pathogenesis
Subjects:C Biological Sciences > C540 Virology
D Veterinary Sciences, Agriculture and related subjects > D323 Animal Pathology
C Biological Sciences > C521 Medical Microbiology
Divisions:College of Science > School of Life Sciences
ID Code:9376
Deposited On:10 May 2013 09:50

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