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Improved removal of anti-A and anti-B antibodies from plasma using blood-group-active haptens

In English

Författare

  • L Blomberg
  • T Bratt
  • Alan Chester
  • B Hansson

Summary, in English

Highly efficient anti-blood group A and B immunoadsorbents for extracorporeal treatment were developed by immobilizing A and B trisaccharide and A tetrasaccharide haptens on Sepharose 4FF and Fractogel TSK using three different methods. The adsorption of the IgG and IgM anti-A antibodies was essentially the same regardless of the A hapten used or the method of oligosaccharide coupling. The adsorption of IgM anti-A was found to be more sensitive than IgG anti-A to changes in column flow rate. The binding of both the IgM and IgG antibodies was slightly lower at 37 degrees C than at 22 degrees C. An anti-A/anti-B adsorbent column potentially suitable for treatment of patients was prepared. A column switching system resulted in a more efficient adsorption of antibodies. Hapten leakage from the column was very low. No nonspecific adsorption of plasma proteins to the column (other than traces of albumin) could be detected.

Publiceringsår

1993

Språk

Engelska

Sidor

126-135

Publikation/Tidskrift/Serie

Vox Sanguinis

Volym

65

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Hematology

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1423-0410