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Pelc-Kłopotowska M, Płoski R, Szczałuba K, Szymańska K, Rydzanicz M, Purchla-Szepioła S, Kolasińska K, Lewicka M, Thornton N, Crew VK, Orzińska A, Guz K. A novel KEL c.1414-1G>T allele in a polish patient with anti-Ku antibody. Transfusion 2022; 62:E43-E44. [PMID: 35932201 DOI: 10.1111/trf.17040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/04/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022]
Affiliation(s)
| | - Rafał Płoski
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Krzysztof Szczałuba
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Krystyna Szymańska
- Mossakowski Medical Research Center, Department of Experimental and Clinical Neuropathology, Polish Academy of Sciences, Warsaw, Poland
| | | | | | - Katarzyna Kolasińska
- Department of Immunohematology, Regional Blood Transfusion Centre, Poznań, Poland
| | - Małgorzata Lewicka
- Department of Immunohematology, Regional Blood Transfusion Centre, Poznań, Poland
| | - Nicole Thornton
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Vanja Karamatic Crew
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Agnieszka Orzińska
- Immunohematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Katarzyna Guz
- Immunohematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
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Dinardo CL, Oliveira TGM, Kelly S, Ashley-Koch A, Telen M, Schmidt LC, Castilho S, Melo K, Dezan MR, Wheeler MM, Johnsen JM, Nickerson DA, Jain D, Custer B, Pereira AC, Sabino EC. Diversity of variant alleles encoding Kidd, Duffy, and Kell antigens in individuals with sickle cell disease using whole genome sequencing data from the NHLBI TOPMed Program. Transfusion 2021; 61:603-616. [PMID: 33231305 DOI: 10.1111/trf.16204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/17/2020] [Accepted: 10/18/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Genetic variants in the SLC14A1, ACKR1, and KEL genes, which encode Kidd, Duffy, and Kell red blood cell antigens, respectively, may result in weakened expression of antigens or a null phenotype. These variants are of particular interest to individuals with sickle cell disease (SCD), who frequently undergo chronic transfusion therapy with antigen-matched units. The goal was to describe the diversity and the frequency of variants in SLC14A1, ACKR1, and KEL genes among individuals with SCD using whole genome sequencing (WGS) data. STUDY DESIGN AND METHODS Two large SCD cohorts were studied: the Recipient Epidemiology and Donor Evaluation Study III (REDS-III) (n = 2634) and the Outcome Modifying Gene in SCD (OMG) (n = 640). Most of the studied individuals were of mixed origin. WGS was performed as part of the National Heart, Lung, and Blood Institute's Trans-Omics for Precision Medicine (TOPMed) program. RESULTS In SLC14A1, variants included four encoding a weak Jka phenotype and five null alleles (JKnull ). JKA*01N.09 was the most common JKnull . One possible JKnull mutation was novel: c.812G>T. In ACKR1, identified variants included two that predicted Fyx (FY*X) and one corresponding to the c.-67T>C GATA mutation. The c.-67T>C mutation was associated with FY*A (FY*01N.01) in four participants. FY*X was identified in 49 individuals. In KEL, identified variants included three null alleles (KEL*02N.17, KEL*02N.26, and KEL*02N.04) and one allele predicting Kmod phenotype, all in heterozygosity. CONCLUSIONS We described the diversity and distribution of SLC14A1, ACKR1, and KEL variants in two large SCD cohorts, comprising mostly individuals of mixed ancestry. This information may be useful for planning the transfusion support of patients with SCD.
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Affiliation(s)
- Carla L Dinardo
- Fundação Pró-Sangue Hemocentro de São Paulo, São Paulo, Brazil
- Institute of Tropical Medicine, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Shannon Kelly
- Vitalant Research Institute, San Francisco, California, USA
| | - Allison Ashley-Koch
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Marilyn Telen
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | | | | | | | - Marcia R Dezan
- Fundação Pró-Sangue Hemocentro de São Paulo, São Paulo, Brazil
| | - Marsha M Wheeler
- Department of Genome Sciences, School of Medicine, University of Washington, Seattle, Washington, USA
| | - Jill M Johnsen
- University of Washington, Seattle, Washington, USA
- Bloodworks, Research Institute, Seattle, USA
| | - Deborah A Nickerson
- Department of Genome Sciences, School of Medicine, University of Washington, Seattle, Washington, USA
| | - Deepti Jain
- University of Washington, Seattle, Washington, USA
| | - Brian Custer
- Vitalant Research Institute, San Francisco, California, USA
| | - Alexandre C Pereira
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), São Paulo, Brazil
| | - Ester C Sabino
- Institute of Tropical Medicine, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Onodera T, Kawai M, Obara K, Enomoto T, Sasaki K, Osabe T, Ogasawara K, Toyoda C, Tsuneyama H, Uchikawa M, Inaba S, Satake M. Silent KEL alleles identified from Japanese individuals with the K o phenotype. Vox Sang 2017; 113:290-296. [PMID: 29280152 DOI: 10.1111/vox.12628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE The rare Ko phenotype lacks all 36 antigens in the Kell blood system. The molecular basis of the Ko phenotype has been investigated, and more than 40 silent KEL alleles are reported by many investigators. The majority of silent alleles are the KEL*02 background. Here, we report molecular genetic analysis of the KEL gene in Japanese individuals with the Ko phenotype. MATERIALS AND METHODS The Ko phenotype was screened from Japanese blood donors for several years using monoclonal anti-Ku or anti-K14 by an automated blood grouping system PK7300. Kell-related antigens were typed by standard tube tests. Genomic DNA was extracted from the blood samples, and KEL gene was analysed by polymerase chain reaction (PCR) and Sanger sequencing. RESULTS We collected 35 Ko blood samples with K-k-, Kp(a-b-), Js(a-b-) and K14-. PCR and sequence analysis revealed that 11 individuals were homozygous for a mutant KEL allele with a c.299G>C (p.Cys100Ser) mutation (rs. 200268316). Three individuals were homozygous for the KEL*02N.24 allele that is c.715G>T (p.Glu239*), and one individual was homozygous for the KEL*02N.40 allele that is c.1474C>T (p.Arg492*). Five individuals were homozygous for novel KEL alleles with single-nucleotide mutations, four individuals had a c.2175delC (p.Pro725 fs*43), and one individual had a c.328delA (p.Arg110 fs*79). The remaining 15 individuals were compound heterozygous, and eight new alleles were identified from them. CONCLUSIONS We identified three known and ten new silent KEL alleles from Japanese individuals with the Ko phenotype. The KEL allele with the c.299G>C (p.Cys100Ser) mutation was the most frequent.
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Affiliation(s)
- T Onodera
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Saitama, Japan
| | - M Kawai
- Japanese Red Cross Central Blood Institute, Tokyo, Japan
| | - K Obara
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Saitama, Japan
| | - T Enomoto
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Saitama, Japan
| | - K Sasaki
- Japanese Red Cross Central Blood Institute, Tokyo, Japan
| | - T Osabe
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
| | - K Ogasawara
- Japanese Red Cross Central Blood Institute, Tokyo, Japan
| | - C Toyoda
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
| | - H Tsuneyama
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
| | - M Uchikawa
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
| | - S Inaba
- Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Saitama, Japan
| | - M Satake
- Japanese Red Cross Central Blood Institute, Tokyo, Japan
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