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Related Experiment Videos

Rapidly progressive glomerulonephritis: classification, pathogenetic mechanisms, and therapy.

W G Couser1

  • 1Department of Medicine, University of Washington, Seattle 98195.

American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation
|June 1, 1988
PubMed
Summary

Rapidly progressive glomerulonephritis (RPGN) involves glomerular antibody deposition or cell-mediated injury. Current therapies are empiric, but early treatment with steroids and immunosuppression shows promise for anti-GBM nephritis.

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Area of Science:

  • Nephrology
  • Immunopathology
  • Glomerular Diseases

Background:

  • Rapidly progressive glomerulonephritis (RPGN) is characterized by rapid loss of kidney function.
  • RPGN can arise from anti-glomerular basement membrane (GBM) antibody deposition, immune complexes, or cell-mediated mechanisms.
  • Idiopathic RPGN often lacks detectable immunoglobulin deposition, suggesting alternative injury pathways.

Purpose of the Study:

  • To review the immunopathogenesis of RPGN.
  • To discuss recent advances in understanding immune-mediated glomerular injury.
  • To evaluate current therapeutic strategies for RPGN.

Main Methods:

  • Review of immunopathologic studies and experimental research on glomerular injury mechanisms.
  • Analysis of clinical data and therapeutic outcomes in RPGN patients.

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  • Evaluation of the role of inflammatory cells and mediators in crescentic glomerulonephritis.

    • Main Results:

    • RPGN pathogenesis involves anti-GBM antibody, immune complexes, or cell-mediated injury.
    • New insights include direct effects of anti-GBM antibody, complement C5b-9, reactive oxygen species, and lymphocytes.
    • Macrophages play a role in fibrin deposition, crescent formation, and capillary wall damage.

    Conclusions:

    • Therapy for RPGN remains largely empirical, despite improved prognoses.
    • Optimal outcomes in anti-GBM nephritis may be achieved with early steroids, immunosuppression, and plasma exchange.
    • Pulse steroids are cost-effective for idiopathic RPGN; cytotoxic agents may be needed for vasculitis.