Alport Alloantibodies but Not Goodpasture Autoantibodies Induce Murine Glomerulonephritis: Protection by Quinary Crosslinks Locking Cryptic α3(IV) Collagen Autoepitopes In Vivo

Abstract excerpt

The noncollagenous (NC1) domains of alpha3alpha4alpha5(IV) collagen in the glomerular basement membrane (GBM) are targets of Goodpasture autoantibodies or Alport posttransplant nephritis alloantibodies mediating rapidly progressive glomerulonephritis. Because the autoepitopes but not the alloepitopes become cryptic upon assembly of alpha3alpha4alpha5NC1 hexamers, we investigated how the accessibility of B cell...

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