IgA Nephropathy and Henoch-Schoenlein Purpura Nephritis: Aberrant Glycosylation of IgA1, Formation of IgA1-Containing Immune Complexes, and Activation of Mesangial Cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F07%3A00004340" target="_blank" >RIV/61989592:15110/07:00004340 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
IgA Nephropathy and Henoch-Schoenlein Purpura Nephritis: Aberrant Glycosylation of IgA1, Formation of IgA1-Containing Immune Complexes, and Activation of Mesangial Cells
Original language description
IgA1 in the circulation and glomerular deposits of patients with IgA nephropathy (IgAN) is aberrantly glycosylated; the hinge-region O-linked glycans are galactose-deficient. The circulating IgA1 of patients with Henoch-Schoenlein purpura nephritis (HSPN) has a similar defect. This aberrancy exposes N-acetylgalactosamine-containing neoepitopes recognized by naturally occurring IgG or IgA1 antibodies resulting in formation of immune complexes. IgA1 contains up to six O-glycosylation sites per heavy chain; it is not known whether the glycosylation defect occurs randomly or preferentially at specific sites. We sought to define the aberrant glycosylation of a galactose-deficient IgA1 myeloma protein and analyze the formation of the immune complexes and their biological activities. Supplementation of serum or cord-blood serum with this IgA1 protein resulted in formation of new IgA1 complexes. These complexes stimulated proliferation of cultured human mesangial cells, as did the naturally-oc
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
EC - Immunology
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
IgA Nephropathy Today. Contrib Nephrol.
ISBN
978-3-8055-8286-5
ISSN
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e-ISSN
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Number of pages
256
Pages from-to
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Publisher name
Karger
Place of publication
Basel
Event location
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Event date
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Type of event by nationality
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UT code for WoS article
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