PMID- 11408221 OWN - NLM STAT- MEDLINE DCOM- 20011004 LR - 20181221 IS - 0066-4804 (Print) IS - 1098-6596 (Electronic) IS - 0066-4804 (Linking) VI - 45 IP - 7 DP - 2001 Jul TI - Effect of famciclovir on herpes simplex virus type 1 corneal disease and establishment of latency in rabbits. PG - 2044-53 AB - Famciclovir (FCV) is efficacious in the treatment of acute herpes zoster and recurrent genital infections but has not been used to treat ocular herpes simplex virus (HSV) infections. We evaluated the efficacy of orally administered FCV in treating HSV-1 epithelial keratitis and determined its effects on the establishment of latency and subsequent reactivation. Rabbits were inoculated with HSV-1 strain 17 syn+ and treated twice daily with increasing concentrations of FCV (60 to 500 mg/kg of body weight). This resulted in a significant, dose-dependent improvement in keratitis scores, as well as prolonged survival. Regardless of the dose of drug used, all groups exhibited the high rates of spontaneous and induced reactivation characteristic of 17syn+. The efficacy of 250 mg of FCV per kg was also compared to topical treatment with 1% trifluorothymidine (TFT). Although TFT treatment was more effective at reducing eye disease, FCV-treated rabbits had a better survival rate. Real-time quantitative PCR analysis of rabbit trigeminal ganglia (TG) demonstrated that FCV significantly reduced the HSV-1 copy number compared to that after treatment with TFT or the placebo but not in a dose-dependent manner. In summary, oral FCV treatment significantly reduces the severity of corneal lesions, reduces the number of HSV-1 genomes in the TG, improves survival, and therefore may be beneficial in reducing the morbidity of HSV keratitis in the clinic. FAU - Loutsch, J M AU - Loutsch JM AD - Department of Ophthalmology, LSU Eye Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112-2234, USA. jlouts@lsuhsc.edu FAU - Sainz, B Jr AU - Sainz B Jr FAU - Marquart, M E AU - Marquart ME FAU - Zheng, X AU - Zheng X FAU - Kesavan, P AU - Kesavan P FAU - Higaki, S AU - Higaki S FAU - Hill, J M AU - Hill JM FAU - Tal-Singer, R AU - Tal-Singer R LA - eng GR - R01 EY006311/EY/NEI NIH HHS/United States GR - F32 EY006996/EY/NEI NIH HHS/United States GR - EY06986/EY/NEI NIH HHS/United States GR - F32 EY006986/EY/NEI NIH HHS/United States GR - EY06996/EY/NEI NIH HHS/United States GR - EY06311/EY/NEI NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Antiviral Agents) RN - 452-06-2 (2-Aminopurine) RN - QIC03ANI02 (Famciclovir) RN - RMW9V5RW38 (Trifluridine) SB - IM MH - 2-Aminopurine/analogs & derivatives/pharmacology/*therapeutic use MH - Acute Disease MH - Administration, Oral MH - Administration, Topical MH - Animals MH - Antiviral Agents/pharmacology/*therapeutic use MH - Corneal Diseases/*drug therapy/mortality/virology MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Famciclovir MH - Herpes Simplex/*drug therapy/mortality/virology MH - Herpesvirus 1, Human/drug effects MH - Keratitis, Herpetic/drug therapy/mortality MH - Rabbits MH - Trifluridine/pharmacology/therapeutic use MH - Trigeminal Ganglion/virology MH - Viral Load MH - Virus Latency/*drug effects PMC - PMC90598 EDAT- 2001/06/16 10:00 MHDA- 2001/10/05 10:01 PMCR- 2001/07/01 CRDT- 2001/06/16 10:00 PHST- 2001/06/16 10:00 [pubmed] PHST- 2001/10/05 10:01 [medline] PHST- 2001/06/16 10:00 [entrez] PHST- 2001/07/01 00:00 [pmc-release] AID - 0790 [pii] AID - 10.1128/AAC.45.7.2044-2053.2001 [doi] PST - ppublish SO - Antimicrob Agents Chemother. 2001 Jul;45(7):2044-53. doi: 10.1128/AAC.45.7.2044-2053.2001.