An early event in the interferon-induced transmembrane signaling process.
Human interferon stimulates a transient two- to threefold increase in the concentration of diacylglycerol and inositol tris-phosphate within 15 to 30 seconds of cell exposure to interferon. Antibodies to interferon inhibit this effect. The stimulation was measurable in isolated cell membranes exposed to interferon. Human alpha and beta, but not gamma, interferon stimulate this increase in cells containing the appropriate interferon receptor. The effect was proportional to the number of interferon receptors. Both the diacylglycerol increase and antiviral effects induced by interferon could be correlated in terms of dose dependence. Thus, a transient diacylglycerol increase is an early event in the interferon-induced transmembrane signaling process.
D000818:Animals; D002450:Cell Communication; D002462:Cell Membrane / Q000187:drug effects; D004075:Diglycerides / Q000032:analysis; D004305:Dose-Response Relationship, Drug; D005347:Fibroblasts / Q000032:analysis / Q000187:drug effects; D006801:Humans; D015544:Inositol 1,4,5-Trisphosphate; D007295:Inositol Phosphates / Q000032:analysis; D007370:Interferon Type I / Q000494:pharmacology; D007371:Interferon-gamma / Q000494:pharmacology; D007372:Interferons / Q000494:pharmacology* / Q000502:physiology; D051379:Mice; D011971:Receptors, Immunologic / Q000378:metabolism; D017471:Receptors, Interferon
D004075:Diglycerides; D007295:Inositol Phosphates; D007370:Interferon Type I; D011971:Receptors, Immunologic; D017471:Receptors, Interferon; D007371:Interferon-gamma; D015544:Inositol 1,4,5-Trisphosphate; D007372:Interferons