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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

  • DOI - Digital Object Identifier

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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    EC - Immunology

  • OECD FORD branch

Result continuities

  • Project

  • 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

  • e-ISSN

  • Number of pages

    256

  • Pages from-to

  • Publisher name

    Karger

  • Place of publication

    Basel

  • Event location

  • Event date

  • Type of event by nationality

  • UT code for WoS article