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Hematopoietic Chimera in a Male Blood Donor and His Dizygotic Twin Sister
Transfusion Medicine and Hemotherapy ( IF 1.9 ) Pub Date : 2019-01-01 , DOI: 10.1159/000495583
Marcos P Miola 1 , Alessandro G Lopes 2 , Alessandra P Silva 3 , Edney G C Gomes 3 , Leticia A F Machado 3 , Wanessa A Veloso 3 , Carlos A Costa 3 , Roberta M Fachini 4 , Octávio Ricci Junior 4 , Cinara C Brandão de Mattos 1 , Luiz Carlos de Mattos 1
Affiliation  

Twin hematopoietic chimera in humans is a phenomenon that was discovered accidentally and the prevalence of which remains unclear. The resolution of chimera cases requires studying family medical records, data analysis, and investigations of hematopoietic cells and cells from other tissues. The interactions among ABO, Lewis, and secretor histo-blood group systems are explored to resolve cases of hematopoietic chimera. Here we report a rare case of hematopoietic chimera where twins present a mixed field reaction in the ABO, Rh, and Kidd red blood cell phenotyping. Using red blood cells separated from the mixed field as well as molecular approaches and investigations of family members, we identify inconsistent genotypes with the Mendelian inheritance pattern when comparing the peripheral blood with the buccal epithelium of the male twin and his twin sister. Analysis of the ABO, Lewis, and secretor phenotypes, and genomic DNA from buccal epithelium showed the genotypes ABO*A1.01/ABO*B.01 and FUT2*01N.02/ FUT2*01N.02 in the male twin and the genotypes ABO*O.01.01/ABO*O.01.02 and FUT2*01/FUT2*01 in the female twin. The results of the HLA-DRB1 genotyping showed inconsistency between the male and his twin sister. We conclude that the serological analyses combined with molecular approaches used in this study are good tools to resolve cases of hematopoietic chimera.

中文翻译:

男性献血者及其异卵双胞胎姐妹的造血嵌合体

人类双造血嵌合体是一种偶然发现的现象,其流行程度尚不清楚。嵌合体病例的解决需要研究家庭病历、数据分析以及造血细胞和其他组织细胞的调查。探索 ABO、Lewis 和分泌组织血型系统之间的相互作用以解决造血嵌合体病例。在这里,我们报告了一个罕见的造血嵌合体案例,其中双胞胎在 ABO、Rh 和 Kidd 红细胞表型中呈现混合场反应。使用从混合场分离的红细胞以及分子方法和家庭成员的调查,在比较男性双胞胎和他的双胞胎姐妹的外周血与颊上皮时,我们发现了与孟德尔遗传模式不一致的基因型。对 ABO、Lewis 和分泌物表型以及来自颊上皮的基因组 DNA 的分析显示,男性双胞胎中的基因型为 ABO*A1.01/ABO*B.01 和 FUT2*01N.02/FUT2*01N.02 以及基因型女性双胞胎中的 ABO*O.01.01/ABO*O.01.02 和 FUT2*01/FUT2*01。HLA-DRB1 基因分型的结果显示男性和他的双胞胎姐妹之间存在不一致。我们得出结论,血清学分析结合本研究中使用的分子方法是解决造血嵌合体病例的好工具。02 在男性双胞胎中,基因型 ABO*O.01.01/ABO*O.01.02 和 FUT2*01/FUT2*01 在女性双胞胎中。HLA-DRB1 基因分型的结果显示男性和他的双胞胎姐妹之间存在不一致。我们得出结论,血清学分析结合本研究中使用的分子方法是解决造血嵌合体病例的好工具。02 在男性双胞胎中,基因型 ABO*O.01.01/ABO*O.01.02 和 FUT2*01/FUT2*01 在女性双胞胎中。HLA-DRB1 基因分型的结果显示男性和他的双胞胎姐妹之间存在不一致。我们得出结论,血清学分析结合本研究中使用的分子方法是解决造血嵌合体病例的好工具。
更新日期:2019-01-01
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