抗血液型抗体による血液型抗原中和療法

DOI

書誌事項

タイトル別名
  • Neutralization of blood group A-antigen by anti-A antibody

抄録

Background. The major barrier to ABO-incompatible solid organ transplantation is acute humoral rejection. Various strategies to reduce anti-blood group antibodybyovercoming ABO incompatible transplantation have been tried. However, antigen-suppressing procedures have not been performed. Methods. We investigated whether an anti-A antibody(K7508)can mask A-antigen on the cells in vitro. Next, we immunized mice with A-antigen-expressing cells coated with K7508 or its Fab fragment, and measured anti-A antibodyproduction in the mice. Results. Blood group A-antigen-expressing cells coated with K7508 were not recognized by another anti-A antibodyin flow cytometry, indicating that A-antigen was masked byK7508 in vitro. The A-antigen on the paraffin-embedded liver tissue was also masked byK7508. Furthermore, the production of anti-A antibodyin mice immunized with A-antigen-expressing cells coated with K7508 or its Fab fragment was significantlysuppressed compared to that in mice immunized with non-coated cells alone, indicating that A-antigen was neutralized byK7508 in vivo. Conclusions. The neutralization of blood group antigen byanti-blood group antibodyand especiallyits Fab fragment might represent one strategyto overcome ABO-incompatible organ transplantation

収録刊行物

  • Organ Biology

    Organ Biology 18 (1), 112-115, 2011

    一般社団法人 日本臓器保存生物医学会

詳細情報 詳細情報について

  • CRID
    1390282680490855552
  • NII論文ID
    130004709992
  • DOI
    10.11378/organbio.18.112
  • COI
    1:CAS:528:DC%2BC3MXhtFSgsL%2FN
  • ISSN
    21880204
    13405152
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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