Serological Characteristics and Gene Sequences of Congenital Blood Group Chimera.
10.19746/j.cnki.issn.1009-2137.2022.04.037
- Author:
Qin-Li DING
1
;
Ai-Fei LIU
1
;
Fang QIU
2
Author Information
1. Department of Blood Transfusion, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China.
2. Department of Blood Transfusion, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China. E-mail: qf3914@163.com.
- Publication Type:Journal Article
- Keywords:
MN blood group;
Rh typing;
blood type chimera;
blood typing;
dizygotic twin;
gene sequencing
- MeSH:
ABO Blood-Group System/genetics*;
Alleles;
Blood Grouping and Crossmatching;
Genotype;
Humans;
Polymerase Chain Reaction
- From:
Journal of Experimental Hematology
2022;30(4):1208-1212
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To identify the ABO positive and negative stereotypic inconsistencies in a dizygotic twin with positive stereotypic patterns and mixed agglutination, and explore the application of serological characteristics and gene sequence in congenital blood group chimeras.
METHODS:ABO blood group identification, Rh and MN typing were performed using the microcolumn gel method and ABO genotyping was performed using the PCR-SSP method.
RESULTS:In this patient, both anti-A and anti-B tubes had mixed hemagglutination of red blood cells, and the anti-ABO tube was AB type. The Rh typing of the patient was CcDEe. Mixed agglutination of red blood cells was observed in both anti-M and anti-N tubes in MN typing. The patient's father and mother was normal Type O and AB, respectively. There were three alleles in the ABO gene of the patient, O0101 came from his father, while A102 and B01 came from his mother.
CONCLUSION:The patient has two groups of red blood cells (type A and B). Because the patients is a dizygotic twin, these two groups of red blood cells can be chimeras formed by blood exchange between the twins. Through gene sequencing, it can be determined that the patient is a congenital A/B blood type chimera.
