Flow cytometric measurement of ABO antibodies in ABO-incompatible living donor kidney transplantation.
Transplantation
; 84(12 Suppl): S20-3, 2007 Dec 27.
Article
em En
| MEDLINE
| ID: mdl-18162982
ABSTRACT
Due to different detection methods, a comparison of anti-A/B antibody (Ab) levels among transplantation centers after living donor ABO-incompatible kidney transplantation is problematic. In the present study, anti-A/B Ab levels were determined prior to, and after, blood group A-to-O kidney transplantation using a recently established semiquantitative flow cytometry-based method, ABO fluorescence-activated cell sorting (ABO-FACS), and compared with standard agglutination titers and indirect antiglobulin testing. Pretransplant agglutination titers were reduced from 164 to 14, by a total of 14 Glycosorb A column immunoadsorptions (IADSs). Compared with the agglutination titers, antidonor immunoglobulin (Ig) M ABO-FACS mean fluorescence intensity ratios (MFIRs) decreased faster and remained low. No difference was observed using donor type or third-party A red blood cells (RBCs) for the ABO-FACS. Glycosorb A columns were not specific, also reducing anti-B and antiporcine IgM levels, which was confirmed by detecting anti-A/B and antiporcine Abs in the column eluates. In conclusion, analysis of pre- and posttransplant Abs from ABO-incompatible kidney transplant recipients by ABO-FACS allows a better understanding of Ab kinetics, which may improve the design of future IADS protocols.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Incompatibilidade de Grupos Sanguíneos
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Sistema ABO de Grupos Sanguíneos
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Teste de Histocompatibilidade
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Transplante de Rim
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Citometria de Fluxo
Limite:
Animals
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article