2. Biology Dictionary
  3. Anti-glomerular basement membrane (GBM) disease

Anti-glomerular basement membrane (GBM) disease

Definition:

Goodpasture syndrome (GS), or anti-glomerular basement membrane (anti-GBM) disease, is a rare and organ-specific autoimmune disease defined by anti-GBM antibody-mediated damage (mainly immunoglobulin G-1) resulting in progressive crescentic glomerulonephritis and, frequently, diffuse pulmonary alveolar hemorrhage. Clinically, GS is characterized by pulmonary hemorrhage and renal failure, although the clinical spectrum may range from only mild symptoms to a relentless and finally lethal outcome. This disease accounts for 10-20% of the patients with acute renal failure following a rapidly progressive glomerulonephritis. The disease is caused by an autoimmune response against the non-collagenase domain of the alpha 3 chain of type IV collagen [alpha3(IV)NC1], found in the glomerular and alveolar basement membranes. Without prompt diagnosis and treatment, the disease can lead to bleeding in the lungs, kidney failure, and even death. Early and intensive treatment with plasmapheresis and immunosuppression with systemic corticosteroids pending results of diagnostic testing, and later cyclophosphamide, is often beneficial, with 90% of patients surviving the acute presentation of GS.

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