id author title date pages extension mime words sentences flesch summary cache txt cord-010248-ln800g5z Sissons, J.G. Patrick Antibody-Mediated Destruction of Virus-Infected Cells 2008-02-29 .txt text/plain 14994 687 44 When lz5I-1abeled IgG antibody was bound to the surface of measles virus-infected cells at the start of the culture period, under the conditions described above for antigenic modulation, about 40% of the radioactivity was still cell associated at 12 hours and nearly all was protein bound Perrin and Oldstone, 1977) . Lysis by human serum of cells infected with HSV types 1 and 2, influenza A, parainfluenza 1, 2, 3, and 4, mumps, and measles viruses was dependent on the presence in serum of IgG antibody specific for the relevant virus and of complement (reviewed by Oldstone and Lampert, 1979) . The use of this system, composed of 11 highly purified complement proteins, provided conclusive evidence that the known proteins of the alternative and membrane attack pathways with IgG antibody are sufficient for lysis of the measles virus-infected cell, without other serum factors. It is apparent that considerably more surface-bound IgG is required to induce complement-dependent lysis of virus-infected cells than is required for antigenic modulation or antibody-dependent cell-mediated cytotoxicity. ./cache/cord-010248-ln800g5z.txt ./txt/cord-010248-ln800g5z.txt