PMID: 8583696Nov 1, 1995Paper

Immunopathogenesis of lupus nephritis: new insights from experimental models

Nihon Jinzo Gakkai shi
S Izui

Abstract

Genetic analysis of systemic lupus erythematosus (SLE) in several lupus-prone mice has revealed that multiple, unlinked genes are required for the expression of various autoimmune manifestations, and that several, quite distinct genetic backgrounds are compatible with this disease. Although the nature of these genetic components has not been fully defined, it is becoming clear that certain genes such as the major histocompatibility complex class II genes and the genes regulating apoptosis apparently play a major role in the development of autoimmune responses characteristic in SLE. Analysis of the nephritogenic potential of monoclonal autoantibodies underlines the importance of qualitative features of autoantibodies in the pathogenesis of lupus nephritis. Strikingly, "wire-loop" glomerular lesions characteristic in human lupus nephritis can be induced by the direct localization of murine IgG3 antibodies with cryoglobulin activity without the involvement of immune complex formation. The remarkable correlation of IgG3 production with the development and acceleration of murine lupus nephritis, in association with enhanced activation of the TH1 subset which can lead to an increase in IgG3 production, is highly significant. The prod...Continue Reading

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