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  • Title: In vitro studies on the antiviral activity of 1, 3-bis(2-chloroethyl)-1-nitrosourea.
    Author: Sidwell RW, Arnett G, Dixon GJ.
    Journal: Appl Microbiol; 1966 May; 14(3):405-10. PubMed ID: 4291237.
    Abstract:
    Chemotherapy experiments carried out in vitro demonstrated that 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) was active against lymphocytic choriomeningitis virus and had an equivocal antiviral effect on Semliki Forest, herpes simplex, and vaccinia viruses. No antiviral effect was observed with BCNU against western equine encephalomyelitis, polio, and parainfluenza (HA-1) viruses. Activity of the drug was determined by inhibition of viral-induced cytopathogenic effect in KB or chick embryo cells and by reduction of virus titer in cell culture supernatant fluid. Maximal activity against the viruses was observed when drug and virus were incubated together for 30 min prior to addition to cells; essentially no activity could be demonstrated if BCNU and virus were added to cells with no prior incubation.
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