Humoral autoimmune responses to glutamic acid decarboxylase have similar target epitopes and subclass that show titer-dependent disease association

Glutamic acid decarboxylase (GAD) is an autoantigen in stiff man syndrome (SMS) and type 1 diabetes (T1DM). Different GAD autoantibody characteristics in these disorders have suggested distinct underlying mechanisms of autoimmunity. Here, it is shown that increased prevalence of autoantibodies to GA...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 117(2005), 1 vom: 01. Okt., Seite 31-5
1. Verfasser: Piquer, Sandra (VerfasserIn)
Weitere Verfasser: Belloni, Cristina, Lampasona, Vito, Bazzigaluppi, Elena, Vianello, Marika, Giometto, Bruno, Bosi, Emanuele, Bottazzo, Gian Franco, Bonifacio, Ezio
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Comparative Study Journal Article Autoantibodies Epitopes, B-Lymphocyte Glutamate Decarboxylase EC 4.1.1.15
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245 1 0 |a Humoral autoimmune responses to glutamic acid decarboxylase have similar target epitopes and subclass that show titer-dependent disease association 
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520 |a Glutamic acid decarboxylase (GAD) is an autoantigen in stiff man syndrome (SMS) and type 1 diabetes (T1DM). Different GAD autoantibody characteristics in these disorders have suggested distinct underlying mechanisms of autoimmunity. Here, it is shown that increased prevalence of autoantibodies to GAD65 amino terminal and GAD67 epitopes and autoantibodies of IgG2, IgG3, or IgG4 subclass in patients with SMS (P < 0.001 vs. T1DM) are secondary to the markedly higher autoantibody titers in SMS patients (P < 0.0001) and that autoantibody epitopes and subclasses were similar when patients were matched for autoantibody titer. Exposure to autoantigen in the disorders is likely to involve similar humoral antigenic determinants, but different B cell regulation 
650 4 |a Comparative Study 
650 4 |a Journal Article 
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650 7 |a Glutamate Decarboxylase  |2 NLM 
650 7 |a EC 4.1.1.15  |2 NLM 
700 1 |a Belloni, Cristina  |e verfasserin  |4 aut 
700 1 |a Lampasona, Vito  |e verfasserin  |4 aut 
700 1 |a Bazzigaluppi, Elena  |e verfasserin  |4 aut 
700 1 |a Vianello, Marika  |e verfasserin  |4 aut 
700 1 |a Giometto, Bruno  |e verfasserin  |4 aut 
700 1 |a Bosi, Emanuele  |e verfasserin  |4 aut 
700 1 |a Bottazzo, Gian Franco  |e verfasserin  |4 aut 
700 1 |a Bonifacio, Ezio  |e verfasserin  |4 aut 
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