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Persistent Expression of Recipient-type ABH Antigen After ABO-incompatible Allogeneic Hematopoietic Stem Cell Transplantation

Abstract

In general, the recipient's ABO blood type changes to the donor's ABO blood type after ABO-incompatible allogeneic hematopoietic stem cell transplantation (HSCT). However, we experienced a 26-year-old male with acute myelogenous leukemia (AML) who underwent ABO-incompatible HSCT twice and persistently showed his original blood type even after demonstrating complete donor-type chimerism. Based on the results of various examinations, we considered that the antigen of the recipient's original blood type persistently synthesized in the recipient's non-hematopoietic organs was secreted and adsorbed on the surface of donor-derived RBCs. We should therefore perform detailed examinations to determine the precise blood type after ABO-incompatible HSCT.

Citing Articles

Persistent Antigen A after Minor ABO-Incompatible Hematopoietic Stem Cell Transplantation in Children: Two Case Reports.

Andric B, Radonjic Z, Serbic O, Vujic D, Zecevic Z, Simic M Transfus Med Hemother. 2024; 51(6):439-443.

PMID: 39664456 PMC: 11630906. DOI: 10.1159/000536176.

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