ORBi: Dehan Pierre - Sera from patients with anti-GBM nephritis including goodpasture syndrome show heterogenous reactivity to recombinant NC1 domain of type IV collagen alpha chains.

Reference : Sera from patients with anti-GBM nephritis including goodpasture syndrome show heterogen...


	Document type :	Scientific journals : Article
	Discipline(s) :	Human health sciences : Urology & nephrology
	To cite this reference:	http://hdl.handle.net/2268/74563

Title :	Sera from patients with anti-GBM nephritis including goodpasture syndrome show heterogenous reactivity to recombinant NC1 domain of type IV collagen alpha chains.
Language :	English
Author, co-author :	Dehan, Pierre [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques >]
	Weber, M. [> >]
	Zhang, X. [> >]
	Reeders, S. T. [> > > >]
	Foidart, Jean-Michel [Université de Liège - ULg > Département des sciences cliniques > Gynécologie - Obstétrique - Labo de biologie des tumeurs et du développement >]
	Tryggvason, K. [> > > >]
Publication date :	1996
Journal title :	Nephrology Dialysis Transplantation
Publisher :	Oxford University Press
Volume :	11
Issue/season :	11
Pages :	2215-22
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	0931-0509
e-ISSN :	1460-2385
City :	Oxford
Country :	United Kingdom
Keywords :	[en] Adult ; Aged ; Anti-Glomerular Basement Membrane Disease/blood/immunology ; Autoantibodies/blood ; Biological Markers ; Collagen/genetics/immunology ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Immunoblotting ; Male ; Middle Aged ; Recombinant Proteins/immunology
Abstract :	[en] BACKGROUND: Goodpasture (GP) syndrome is defined by the clinical association of pulmonary haemorrhage with rapidly progressive glomerulonephritis. The disease is caused by pathogenic autoantibodies directed against type IV collagen, which is a major structural component of glomerular basement membranes (GBM). METHODS: The non-collagenous domains (NC1) of all six human type IV collagen alpha chains was produced in E. coli as recombinant fusion proteins with glutathione-S transferase. Sera from 10 patients with different types of anti-GBM nephritis, including GP syndrome, were tested for reactivity with the six proteins using immunoblotting of denatured and reduced proteins and ELISA without reduction. RESULTS: All 10 sera reacted with the alpha 3 (IV) collagen chain by immunoblotting and ELISA. One serum also recognized the alpha 2(IV), alpha 4(IV), alpha 5(IV) and alpha 6(IV) chains by immunoblotting. ELISA measurements revealed reactivity of several other sera with alpha 2(IV), alpha 4(IV) or alpha 6(IV) but not with alpha 5(IV) collagen chains. No reactivity was observed with the alpha 1(IV) chain. CONCLUSION: Autoantibodies in anti-GBM nephritis may not be directed only against the alpha 3(IV) collagen chain and they frequently recognize conformational epitopes.
Permalink :	http://hdl.handle.net/2268/74563

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