This invention describes a method whereby autoimmune antinuclear antibodies are used as a targeting agent to deliver drug nanoparticles or drug liposomes to the tumor or disease site. The antinuclear antibodies have the propensity to localize in areas of tissue necrosis where dead cells have released their nuclear material into the extracellular environment. Many tumors have areas of necrosis that can be targeted using antinuclear antibody coated drug nanoparticles or liposomes. Similarly, many infectious diseases have areas of necrosis and can also be targeted using antinuclear antibody coated drug nanoparticles or liposomes. Similarly, many immune disorders such as rheumatoid arthritis and osteoarthritis have areas of inflammation where there is cell death, and these inflammatory sites can also be targeted using antinuclear antibody coated drug nanoparticles or liposomes.
