Response to anti-TNF-α treatment for secondary renal amyloidosis in a patient with ankylosing spondylitis

Renal amyloidosis is a complication of ankylosing spondylitis. A possible pathogenetic role is due to TNF-α, with a direct action on glomerular receptors TNFR2 and renal injury, secondary to deposition of amyloid fibrils. The most frequent clinical manifestation is proteinuria or nephrotic syndrome....

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Bibliographic Details
Main Authors: A. Gallo, M.G. Ferrucci, S. Bellissimo, S. Stisi
Format: Article
Language:English
Published: PAGEPress Publications 2011-09-01
Series:Reumatismo
Online Access:http://www.reumatismo.org/index.php/reuma/article/view/334
Description
Summary:Renal amyloidosis is a complication of ankylosing spondylitis. A possible pathogenetic role is due to TNF-α, with a direct action on glomerular receptors TNFR2 and renal injury, secondary to deposition of amyloid fibrils. The most frequent clinical manifestation is proteinuria or nephrotic syndrome. Etanercept, a soluble receptor of TNF-α, binds this circulant cytokine with a progressive improvement of renal function and reduction of deposits of amyloid. Transient leukopenia, observed during ankylosing spondylitis, should not be considered a controindication to the use of Etanercept, but it requires a constant monitoring. The benefit observed in our patient can represent an indication to the use of Etanercept for the management of amyloidosis.
ISSN:0048-7449
2240-2683