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http://purl.uniprot.org/citations/34600965http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/34600965http://www.w3.org/2000/01/rdf-schema#comment"Primary membranous nephropathy (MN) is an autoimmune glomerular disease in which autoantibodies are directed against podocyte proteins. In about 80% of cases the main targeted antigen is the phospholipase A2 receptor 1 (PLA2R1). Anti-PLA2R1 antibodies are mainly immunoglobulin G type 4 (IgG4). However, the antigenic target remains to be defined in 20% of cases. MN can be associated with chronic inflammatory demyelinating polyneuropathy, an autoimmune disease of the peripheral nervous system where a common antigenic target has yet to be identified. To ascertain a possible novel target antigen, we analyzed kidney biopsies from five patients positive for anti-contactin 1 antibodies and presenting with MN combined with chronic inflammatory demyelinating polyneuropathy. Eluted IgG from biopsy sections against contactin 1 and nerve tissue were screened. Western blot revealed contactin 1 expression in normal kidney glomeruli. Confocal microscopic analysis showed the presence and colocalization of contactin 1 and IgG4 on the glomerular basement membrane of these patients. Glomerular contactin 1 was absent in patients with anti-PLA2R1-associated MN or membranous lupus nephritis or a healthy control. The eluted IgG from contactin 1-positive biopsy sections but not the IgG eluted from patients with PLA2R1 MN bound contactin 1 with the main eluted subclass IgG4. Eluted IgG could bind paranodal tissue (myelinated axon) and colocalized with commercial anti-contactin 1 antibody. Thus, contactin 1 is a novel common antigenic target in MN associated with chronic inflammatory demyelinating polyneuropathy. However, the precise pathophysiology remains to be elucidated."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.org/dc/terms/identifier"doi:10.1016/j.kint.2021.08.014"xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Larroque C."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Delmont E."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Chauvin A."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Bec N."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Devaux J."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Le Quintrec M."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Lanfranco L."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Taieb G."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Jose B."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Teisseyre M."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Szwarc I."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Rigothier C."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Machet M.C."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Mavroudakis N."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Perrochia H."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Geneste C."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Beyze A."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Concetta C."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/author"Pernin V."xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/date"2021"xsd:gYear
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/name"Kidney Int"xsd:string
http://purl.uniprot.org/citations/34600965http://purl.uniprot.org/core/pages"1240-1249"xsd:string