Murine macrophage death upon infection with Listeria monocytogenes was previously shown to be increased by beta interferon, produced by the infected cells. We saw that interferon-upregulated caspase activation or other interferon-inducible, death-associated proteins, including TRAIL, protein kinase R, and p53, were not necessary for cell death. Macrophage death was reduced when inducible nitric...

BACKGROUND African Americans (AAs) with multiple sclerosis (MS) seem to have a more severe disease course than white Americans (WAs). To our knowledge, it is not known to what extent treatment with interferon beta-1a will effect the MS disease course within the AA population. OBJECTIVE To compare the response to treatment with interferon beta-1a between AA and WA MS patients. DESIGN This is...

The antiproliferative effect of human fibroblast interferon (IFN-beta), human recombinant leukocyte interferon (IFN-alpha A), and polyinosinic . polycytidylic acid [poly(I) . poly(C)] was investigated in human colon carcinoma cell line HT-29. Exposure of HT-29 cells for 1 to 3 days with 100 to 2000 units of either interferon preparation resulted in a 30 to 50% inhibition of growth after 3 days....