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Li C, Gu Z, Hou Y, Gao Q, Xu G, Lu H. A Pedigree Investigation of H-antigen Deletion Caused by Mutation of 658 C to T in the FUT1 Gene. Indian J Hematol Blood Transfus 2024; 40:504-507. [PMID: 39011245 PMCID: PMC11246360 DOI: 10.1007/s12288-023-01669-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 04/10/2023] [Indexed: 07/17/2024] Open
Abstract
H-antigen deletion is often caused by FUT1 gene mutation, which is a very rare blood group. In this case, the H-antigen phenotype, FUT1, FUT2 sequences, and family genetic investigation of a 26-year-old patient (proband) and her three family members were studied. The results showed that the proband and little her brother were H-deficient phenotype, their ABO genotype of both was A/O1, her father was A/B, and her mother was O1/O1. The proband and her little brother's FUT1 phenotype were both h3|h3, with a homozygous mutation 658C > T in their FUT1 gene, and the FUT1 phenotype of their parents' were H|h3, with a heterozygous mutation (658C > T) in their FUT1 gene. The result of whole gene sequencing showed that the father of the proband had a deletion of CHR19.49,255,178-49,257,177 in the FUT1 gene (hg19 was used as the reference). The results of the family investigation showed that the mutation of site 658 in the FUT1 gene between offspring and parents was consistent with Mendelian inheritance law.
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Affiliation(s)
- Chun Li
- Transfusion Department, Chongqing Medical University Affiliated Second Hospital, Linjiang Road 74#,Yu Zhong District, Chongqing, 400010 China
| | - Zelan Gu
- Transfusion Department, Chongqing Medical University Affiliated Second Hospital, Linjiang Road 74#,Yu Zhong District, Chongqing, 400010 China
| | - Yijun Hou
- Transfusion Department, Chongqing Medical University Affiliated Second Hospital, Linjiang Road 74#,Yu Zhong District, Chongqing, 400010 China
| | - Qi Gao
- Transfusion Department, Chongqing Medical University Affiliated Second Hospital, Linjiang Road 74#,Yu Zhong District, Chongqing, 400010 China
| | - Guping Xu
- Transfusion Department, Chongqing Medical University Affiliated Second Hospital, Linjiang Road 74#,Yu Zhong District, Chongqing, 400010 China
| | - Hua Lu
- Transfusion Department, Chongqing Medical University Affiliated Second Hospital, Linjiang Road 74#,Yu Zhong District, Chongqing, 400010 China
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Cripps K, Mullanfiroze K, Hill A, Moss R, Kricke S. Prevalence of adsorbed A antigen onto donor-derived group O red cells in children following stem cell transplantation: A single-centre evaluation. Vox Sang 2023; 118:153-159. [PMID: 36484329 DOI: 10.1111/vox.13386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES A group AB D-positive child presented 1 year after haematopoietic stem cell transplant (HSCT) from a group O D-negative donor as group A D-negative. Engraftment remained at 100% in white cell lineages. The reason for the unusual result was explored, and the scarcely reported phenomenon of adsorption of secreted antigen was considered. This study also investigated the prevalence of secreted antigen adsorbed onto donor-derived group O red blood cells (RBCs) in children after HSCT and defined a process for laboratory management. MATERIALS AND METHODS Retrospective data analysis of HSCTs carried out over 19 months at Great Ormond Street Hospital was conducted to identify cases of adsorbed A antigen after HSCT. Investigation of RBC reactions with different clones of anti-A and in vitro experiments was performed to recreate adsorption. RESULTS Nineteen A to O HSCTs were conducted over 19 months, of which six (31%) displayed weak A antigen on RBCs despite full myeloid engraftment. Negative reactions with anti-A were obtained when run on an alternative clone. Laboratory protocols for the future management of these cases have been developed. CONCLUSION Passive adsorption of secreted antigen is responsible for these results and is more widespread than previously reported, as a third of A to O HSCTs at our centre demonstrated this phenomenon. A process has been implemented into the laboratory to manage this cohort, ensuring component groups compatible with both donor and recipient are given, and the shared care centres are aware of these requirements.
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Affiliation(s)
- Kelly Cripps
- Blood Transfusion, Department of Haematology, Paediatric Laboratory Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Khushnuma Mullanfiroze
- Department of Blood and Marrow Transplant, Level 1, Zayed Centre for Research, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Annette Hill
- Department of Blood and Marrow Transplant, Level 1, Zayed Centre for Research, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Rachel Moss
- Blood Transfusion, Department of Haematology, Paediatric Laboratory Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Susanne Kricke
- Molecular Haematology, Paediatric Laboratory Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
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Shahriyari F, Oodi A, Kenari FN, Shahabi M. Identification of two novel FUT1 mutations in people with Bombay phenotype from Iran. Transfus Apher Sci 2023:103640. [PMID: 36641332 DOI: 10.1016/j.transci.2023.103640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/27/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND PURPOSE Bombay and Para-Bombay phenotypes are characterized by FUT1 gene mutation and lack of H antigen expression in red blood cells. ABH antigens are not present in the body secretions of Bombay individuals, while they are expressed in the secretions of para-Bombay. The aim of this study was to investigate the molecular basis of FUT1 and FUT2 genes in Iranians with the Bombay or Para-Bombay phenotype. MATERIALS AND METHODS ABO phenotype analysis and routine serological tests were performed on 11 people with Bombay and Para-Bombay phenotypes. The coding regions of FUT1 and FUT2 genes were amplified by PCR followed by sequencing. The ABO genotypes were also determined by sequencing exons 6 and 7 of the ABO gene. RESULTS Serological investigations confirmed the Bombay phenotype in 8 samples and the Para-Bombay phenotype in 3 samples. Family members with the Bombay phenotype had the classic c 0.725 T > G mutation in the FUT1 gene, accompanied by deletion of the FUT2 gene. Other samples had c.653 A>G, c 0.661 C>T, c 0.652 C>G, and c.722 A>C mutations in the FUT1 while FUT2 was silenced by c 0.461 G>A. CONCLUSION In this research, we identified two novel mutations in the FUT1 gene in individuals with the Bombay phenotype. This and previous works confirm the variety of FUT1 mutations.
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Affiliation(s)
- Faeze Shahriyari
- Blood transfusion research centre, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Arezoo Oodi
- Blood transfusion research centre, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | | | - Majid Shahabi
- Blood transfusion research centre, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
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Kim MS, Kim JS, Park H, Chung Y, Kim H, Ko DH, Kim SH, Hwang SH, Oh HB. The First Case of Para-Bombay Blood Type Encountered in a Korean Tertiary Hospital. J Korean Med Sci 2019; 34:e258. [PMID: 31602828 PMCID: PMC6786960 DOI: 10.3346/jkms.2019.34.e258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 08/19/2019] [Indexed: 11/20/2022] Open
Abstract
Para-Bombay phenotypes are rare blood groups that have inherent defects in producing H antigens associated with FUT1 and/or FUT2. We report the first case of para-Bombay blood type in a Southeast Asian patient admitted at a tertiary hospital in Korea. A 23-year-old Indonesian man presented to the hospital with fever and was diagnosed with a disseminated nontuberculous mycobacterium infection and anemia. During blood group typing for blood transfusion, cell typing showed no agglutination with both anti-A and anti-B reagents. Serum typing showed strong reactivity against B cells and trace agglutination pattern with A1 cells. His red blood cells failed to react with anti-H reagents. Direct sequencing of FUT1 and FUT2 revealed a missense variation, c.328G>A (p.Ala110Thr, rs56342683, FUT1*01W.02), and a synonymous variant, c.390C>T (p.Asn130=, rs281377, Se357), respectively. This highlights the need for both forward and reverse grouping.
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Affiliation(s)
- Min Sun Kim
- Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jin Seok Kim
- Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | | | - Yousun Chung
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Hyungsuk Kim
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Korea
| | - Dae Hyun Ko
- Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
| | - Sung Han Kim
- Department of Infectious Diseases, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Sang Hyun Hwang
- Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Heung Bum Oh
- Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Mutational Analysis of Bombay Phenotype in Iranian People: Identification of a Novel FUT1 Allele. Indian J Hematol Blood Transfus 2019; 35:321-324. [PMID: 30988570 DOI: 10.1007/s12288-018-1027-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 10/03/2018] [Indexed: 10/28/2022] Open
Abstract
Bombay phenotype is characterized by lack of ABH antigens on RBCs and in body secretions as a result of mutations in fucosyltransferase 1 (FUT1) and fucosyltransferase 2 (FUT2) genes. The aim of this study was a mutational analysis in Iranians with this phenotype. Serological analyses including ABH and adsorption-elution tests were performed in five unrelated Bombay individuals. ABO genotyping was determined by direct sequencing. The coding regions of FUT1 and FUT2 genes were amplified and sequenced directly or after cloning into suitable vector. A novel missense FUT1 allele was detected (G1051T; G351C). Also four reported FUT1 alleles were revealed. Molecular analysis of FUT2 gene confirmed nonsecretor status in all individuals. This and our previous findings suggest the diversity and population specificity of FUT1 alleles.
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Shahverdi E, Moghaddam M, Hajbeigi B, Pourfathollah AA, Hassani F, Herfat F. The First Comprehensive Study of H-Deficient Phenotypes in Iran. Transfus Med Hemother 2018; 46:376-380. [PMID: 31832063 DOI: 10.1159/000491880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 07/06/2018] [Indexed: 11/19/2022] Open
Abstract
Background The lack of correct blood grouping practices can lead to missing of the rare Bombay Oh phenotype and subjecting patients to the risk of severe hemolytic transfusion reaction. In the absence of blood donor registry, transfusion management of patients is a challenge. We performed this study in order to estimate the prevalence of the Bombay blood group (Oh) in Iran and to determine whether consanguinity plays a role in the prevalence of Oh group. Methods This is a descriptive study in the Immunohematology Reference Laboratory of the Iranian Blood Transfusion Organization (IBTO) Tehran, Iran, over a period of 7 years. All donor blood samples showing blood group O and a strong initial reaction with blood group O RBC control cells were tested with anti-H lectin. Also blood samples from blood group O patients were tested with anti-H lectin if all cells on both antibody screening tests and antibody identification panels were reactive with negative auto control test. Specialized tests like adsorption/elution technique and inhibition assay for determination of secretor status were performed on Oh cases. Any history of consanguineous marriages were recorded. All variables were categorical variables, and percentage and proportions were calculated manually. Results Analysis of the results of over 7 million first-time blood donors in Iran showed that the most common ABO blood group was O, with 2,520,000 (36%) subjects. 56 Oh individuals' (donors and patients) phenotypes (0.0008%) were detected. Consanguinity was observed in 50 cases (89%). Conclusions This study shows that the prevalence of Bombay blood group in the general population of Iran is relatively high (0.0008%) and associated with consanguineous marriage. Thus, consanguinity is still an important risk factor present.
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Affiliation(s)
- Ehsan Shahverdi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.,Blood and Cancer Research Center, MAHAK Pediatric Cancer Treatment and Research Center, Tehran, Iran
| | - Mostafa Moghaddam
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Bashir Hajbeigi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Ali Akbar Pourfathollah
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.,Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Hassani
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Fahimeh Herfat
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
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