Interferon complex and medicinal use thereof

摘要

An object of the present invention is to provide modified IFN so that duration of IFN in blood is prolonged and IFN acts specifically on tissues having neovasculature, particularly tumors or ophthalmic tissues having neovasculature. The present invention provides an interferon-dextran complex obtained by mixing interferon with dextran having chelate ligands in the presence of a metal ion.