Human Interferon-γ Enhances the Expression of Class I and Class II Major Histocompatibility Complex Products in Neoplastic Cells More Effectively than Interferon-α and Interferon-β

Abstract
Human interferon-γ was more effective than interferon-β or -α in stimulating production of immunoassociated antigens; HLA-A, -B, and -C; and β2-microglobulin in human M14 and Namalva cells. The comparison was made on the basis of antiviral units, and the stimulation could be abolished by treatment of the interferon-γ preparation with pH 2 or anti-interferon-γ serum.