Activation of cryptic IgG reactive with BAFF, amyloid beta peptide and GM-CSF during the industrial fractionation of human plasma into therapeutic intravenous immunoglobulins

The mechanisms of therapeutic action of IVIg are still unclear in most autoimmune and inflammatory diseases. IVIg have been shown to bind to a variety of human proteins including BAFF, amyloid beta peptide and GM-CSF. It has been suggested that this autoreactivity could contribute to the therapeutic...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 133(2009), 1 vom: 04. Okt., Seite 52-60
1. Verfasser: St-Amour, Isabelle (VerfasserIn)
Weitere Verfasser: Laroche, André, Bazin, Renée, Lemieux, Réal
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Amyloid beta-Peptides B-Cell Activating Factor Immunoglobulin G Immunoglobulins, Intravenous TNFSF13B protein, human Ethanol 3K9958V90M Granulocyte-Macrophage Colony-Stimulating Factor 83869-56-1
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245 1 0 |a Activation of cryptic IgG reactive with BAFF, amyloid beta peptide and GM-CSF during the industrial fractionation of human plasma into therapeutic intravenous immunoglobulins 
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520 |a The mechanisms of therapeutic action of IVIg are still unclear in most autoimmune and inflammatory diseases. IVIg have been shown to bind to a variety of human proteins including BAFF, amyloid beta peptide and GM-CSF. It has been suggested that this autoreactivity could contribute to the therapeutic immunomodulatory effects of IVIg. In this work, we showed that native IgG purified from plasma under non-denaturing conditions were much less autoreactive than IVIg. However the native IgG autoreactivity with BAFF, amyloid beta peptide and GM-CSF was significantly increased by short incubation under the slightly denaturing conditions used during industrial plasma fractionation. We conclude that the relatively mild conditions used in industrial plasma fractionation are sufficiently denaturing to activate a significant amount of cryptic autoreactive plasma IgG which could be involved not only in the therapeutic immunomodulatory effects of IVIg but also in the adverse "allergic" reactions often observed in IVIg-infused patients 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Amyloid beta-Peptides  |2 NLM 
650 7 |a B-Cell Activating Factor  |2 NLM 
650 7 |a Immunoglobulin G  |2 NLM 
650 7 |a Immunoglobulins, Intravenous  |2 NLM 
650 7 |a TNFSF13B protein, human  |2 NLM 
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650 7 |a Granulocyte-Macrophage Colony-Stimulating Factor  |2 NLM 
650 7 |a 83869-56-1  |2 NLM 
700 1 |a Laroche, André  |e verfasserin  |4 aut 
700 1 |a Bazin, Renée  |e verfasserin  |4 aut 
700 1 |a Lemieux, Réal  |e verfasserin  |4 aut 
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856 4 0 |u http://dx.doi.org/10.1016/j.clim.2009.06.005  |3 Volltext 
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