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. 1965 Jul;13(4):579–589. doi: 10.1128/am.13.4.579-589.1965

In Vivo Antiviral Activity of 1,3-Bis(2-Chloroethyl)-1-Nitrosourea

Robert W Sidwell 1, Glen J Dixon 1, Sara M Sellers 1, Frank M Schabel Jr 1
PMCID: PMC1058301  PMID: 14339266

Abstract

A prolongation in the lives of Swiss mice inoculated intracerebrally with lymphocytic choriomeningitis virus (LCM) was observed after treatment with 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU). A variety of treatment schedules, including therapy once or twice daily up to 17 days and single treatments at various times after virus inoculation, were employed. Virus titers ranging to greater than 104 were detected in the blood and brains of surviving drug-treated animals. In three comparative studies in which different treatment schedules were used, BCNU was shown to exert a protective effect approximately equal to that of methotrexate in LCM virus-infected mice. Tests were also carried out to investigate the activity of BCNU in mice experimentally infected with eastern equine encephalomyelitis (EEE) virus, western equine encephalomyelitis virus, Semliki Forest (SF) virus, herpes simplex virus, influenza virus strain PR8, vaccinia virus strain WR, Rous sarcoma virus, Friend leukemia virus (FLV), and poliovirus. Slight increases in life span were observed in the treated EEE, SF, and influenza PR8 virus-infected animals. Significant reduction in splenomegaly in FLV-infected animals treated with BCNU was demonstrated. The possible mechanisms of LCM virus inhibition by BCNU, on the basis of these and other studies, were postulated to be either specific antiviral activity or inhibition of “lethal” immune response to the LCM virus. Each of these postulates is discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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