Abstract
Sulfated chitin derivatives, selected for their low toxicity and high inhibitory activity of melanoma metastasis, were examined for anti-viral activity against Friend murine leukaemia, herpes simplex type-1 (HSV) and Sendai viruses. Carboxymethyl chitin with a 7.66% degree of sulfation (SCM-chitin III) showed a significant inhibition of Friend murine leukaemia helper virus (F-MuLV) and HSV, but not of Sendai virus growth in vitro. Sulfated N-deacetylated chitin had a significant but weak activity against F-MuLV and HSV infections. Carboxymethyl chitin showed no effect on these infections in vitro. SCM-chitin III also exhibited anti-viral activity in vivo by suppressing the splenomegaly which was caused by prior infection of mice with FV, a complex of F-MuLV and spleen focus-forming virus.
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