ANTITUMOR, ANTIVIRAL AND NATURAL KILLER-INDUCING ACTIVITIES OF HUMAN RECOMBINANT INTERFERON-ALPHA IN THE GUINEA PIG

Abstract
It was found that human recombinant interferon-alpha (Hu rIFN-.alpha.) was biologically active in the guinea pig. Namely, intratumor injection of either Hu rIFN-.alpha. A or A/D regressed tumors and prevented metastasis of guinea-pig line 10 tumor. These rIFNs augmented splenic natural killer activity of the guinea pig and reduced the cytopathic effect of virus on guinea-pig cells. Hu IFN-.gamma. showed no such activity.