DNA as a self-antigen: nature and regulation.

Authors: Soni C, Reizis B Abstract High-affinity antibodies to double-stranded DNA are a hallmark of systemic lupus erythematosus (SLE) and are thought to contribute to disease flares and tissue inflammation such as nephritis. Notwithstanding their clinical importance, major questions remain about the development and regulation of these pathogenic anti-DNA responses. These include the mechanisms that prevent anti-DNA responses in healthy subjects, despite the constant generation of self-DNA and the abundance of DNA-reactive B cells; the nature and physical form of antigenic DNA in SLE; the regulation of DNA availability as an antigen; and potential therapeutic strategies targeting the pathogenic DNA in SLE. This review summarizes current progress in these directions, focusing on th...

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