PMID- 6247967 OWN - NLM STAT- MEDLINE DCOM- 19800828 LR - 20210526 IS - 0066-4804 (Print) IS - 1098-6596 (Electronic) IS - 0066-4804 (Linking) VI - 17 IP - 2 DP - 1980 Feb TI - In vitro and in vivo resistance of herpes simplex virus to 9-(2-hydroxyethoxymethyl)guanine (acycloguanosine). PG - 144-50 AB - In vitro passage of the Patton strain of herpes simplex virus type 1 (HSV-1-P) in the presence of acycloguanosine (ACG) led to the emergence of a highly drug-resistant strain (HSV-1-P-ACG-R). Over 1% of virions in 6 of 15 HSV strains tested were able to form plaques in the presence of 10 mumol of ACG on first exposure to the drug. Therefore, there exists among HSV strains a broad range of susceptibilities to ACG, and some strains contain particles which are partially resistant to ACG before ever contacting the drug. HSV-1-P-ACG-R was partially resistant to iododeoxyuridine; conversely, iododeoxyuridine-resistant virus was highly resistant to ACG. ACG-resistant virus (HSV-1-P-ACG-R) was equal to its parent strain (HSV-1-P) in susceptibility to adenine arabinoside. The HSV-1-P-ACG-R strain produced corneal lesions in rabbits which were completely refractory to topical treatment with 1% unguent ACG, but responsive to 3% ACG. Partially resistant HSV could be isolated from the eyes of rabbits infected with ACG-susceptible virus and treated topically with either 1 or 3% ACG for 6 days. FAU - Smith, K O AU - Smith KO FAU - Kennell, W L AU - Kennell WL FAU - Poirier, R H AU - Poirier RH FAU - Lynd, F T AU - Lynd FT LA - eng PT - Journal Article PL - United States TA - Antimicrob Agents Chemother JT - Antimicrobial agents and chemotherapy JID - 0315061 RN - 0 (Antiviral Agents) RN - 5Z93L87A1R (Guanine) RN - FA2DM6879K (Vidarabine) RN - LGP81V5245 (Idoxuridine) RN - X4HES1O11F (Acyclovir) SB - IM MH - Acyclovir MH - Animals MH - Antiviral Agents/*pharmacology/therapeutic use MH - Cells, Cultured MH - Drug Resistance, Microbial MH - Guanine/*analogs & derivatives/pharmacology/therapeutic use MH - Herpes Simplex/*drug therapy MH - Humans MH - Idoxuridine/pharmacology MH - Keratitis, Dendritic/drug therapy/microbiology MH - Rabbits MH - Simplexvirus/*drug effects MH - Vidarabine/pharmacology PMC - PMC283749 EDAT- 1980/02/01 00:00 MHDA- 1980/02/01 00:01 PMCR- 1980/02/01 CRDT- 1980/02/01 00:00 PHST- 1980/02/01 00:00 [pubmed] PHST- 1980/02/01 00:01 [medline] PHST- 1980/02/01 00:00 [entrez] PHST- 1980/02/01 00:00 [pmc-release] AID - 10.1128/AAC.17.2.144 [doi] PST - ppublish SO - Antimicrob Agents Chemother. 1980 Feb;17(2):144-50. doi: 10.1128/AAC.17.2.144.