1
|
Dechavanne C, Dechavanne S, Bosch J, Metral S, Redinger KR, Watson QD, Ratsimbasoa AC, Roeper B, Krishnan S, Fong R, Bennett S, Carias L, Chen E, Salinas ND, Ghosh A, Tolia NH, Woost PG, Jacobberger JW, Colin Y, Gamain B, King CL, Zimmerman PA. Duffy antigen is expressed during erythropoiesis in Duffy-negative individuals. Cell Host Microbe 2023; 31:2093-2106.e7. [PMID: 38056457 PMCID: PMC10843566 DOI: 10.1016/j.chom.2023.10.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/14/2023] [Accepted: 10/31/2023] [Indexed: 12/08/2023]
Abstract
The erythrocyte silent Duffy blood group phenotype in Africans is thought to confer resistance to Plasmodium vivax blood-stage infection. However, recent studies report P. vivax infections across Africa in Fy-negative individuals. This suggests that the globin transcription factor 1 (GATA-1) SNP underlying Fy negativity does not entirely abolish Fy expression or that P. vivax has developed a Fy-independent red blood cell (RBC) invasion pathway. We show that RBCs and erythroid progenitors from in vitro differentiated CD34 cells and from bone marrow aspirates from Fy-negative samples express a functional Fy on their surface. This suggests that the GATA-1 SNP does not entirely abolish Fy expression. Given these results, we developed an in vitro culture system for P. vivax and show P. vivax can invade erythrocytes from Duffy-negative individuals. This study provides evidence that Fy is expressed in Fy-negative individuals and explains their susceptibility to P. vivax with major implications and challenges for P. vivax malaria eradication.
Collapse
Affiliation(s)
- Celia Dechavanne
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Sebastien Dechavanne
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Jürgen Bosch
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA; InterRayBio, LLC, Cleveland, OH, USA
| | - Sylvain Metral
- Université Paris Cité and Université des Antilles, INSERM, BIGR, 75015 Paris, France
| | - Karli R Redinger
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Quentin D Watson
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Arsene C Ratsimbasoa
- University of Fianarantsoa, Fianarantsoa, Madagascar; CNARP (Centre National d'Application de Recherche Pharmaceutique), Antananarivo, Madagascar
| | - Brooke Roeper
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Sushma Krishnan
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Rich Fong
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Seth Bennett
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Lenore Carias
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Edwin Chen
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Nichole D Salinas
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Anil Ghosh
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA
| | - Niraj H Tolia
- Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Philip G Woost
- Case Comprehensive Cancer Center Flow Cytometry Core, Case Western Reserve University, Cleveland, OH, USA
| | - James W Jacobberger
- Case Comprehensive Cancer Center Flow Cytometry Core, Case Western Reserve University, Cleveland, OH, USA
| | - Yves Colin
- Université Paris Cité and Université des Antilles, INSERM, BIGR, 75015 Paris, France
| | - Benoit Gamain
- Université Paris Cité and Université des Antilles, INSERM, BIGR, 75015 Paris, France.
| | - Christopher L King
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA; Veterans Affairs Research Service, Cleveland, OH, USA.
| | - Peter A Zimmerman
- Center for Global Health & Disease, Case Western Reserve University, Cleveland, OH, USA.
| |
Collapse
|
2
|
Rieneck K, Krog GR, Clausen FB, Egeberg Hother C, Dziegiel MH. Blood donor genotyping for prediction of blood group antigens: Results from 5 years' experience (2017-2022). Vox Sang 2023; 118:980-987. [PMID: 37671771 DOI: 10.1111/vox.13524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/27/2023] [Accepted: 08/18/2023] [Indexed: 09/07/2023]
Abstract
BACKGROUND AND OBJECTIVES For 5 years, routine genotyping has been performed for selected blood groups of blood donors in the Copenhagen Capital Region, Denmark. The result is summarized in the following. MATERIALS AND METHODS Genotyping was carried out by an external service provider using the competitive allele specific PCR (KASP) technology. The genotypes were returned to the blood bank and translated into phenotypes by a proprietary IT application. RESULTS In total, 65 alleles from 16 blood group systems (ABO, MNS, Rh, Lutheran, Kell, Duffy, Kidd, Diego, Yt, Dombrock, Colton, Landsteiner-Wiener, Cromer, Knops, Vel, secretor status) and the HPA1, HPA5 and HPA15 antigens were interrogated. After translation, phenotypes were imported into the laboratory information management system of the blood bank. The results from 31,538 genotyped blood donors were used to calculate the allele frequencies for a Danish blood donor population. ABO genotyping was done for sample ID purposes. Determination of the 1061delC single nucleotide polymorphism (SNP) (NM_020469.2), most frequently characteristic of ABO*A2, was validated against a series of 1287 samples with Dolichos biflorus lectin determination of the A1 phenotype. CONCLUSION We report allele frequencies and phenotype frequencies for 16 blood groups from a total of 31,538 genotyped blood donors. Blood products were supplied from a total of 64,312 active blood donors, and of these active blood donors 25,396 (39.5%) were genotyped. These donors represent a valuable resource for patient treatment. This genotyping has enabled the provision of rare genotyped donor blood for patients with alloantibodies and rare reagent cells for serology.
Collapse
Affiliation(s)
- Klaus Rieneck
- Department of Clinical Immunology, Section 2034, Rigshospitalet, Copenhagen, Denmark
| | - Grethe Risum Krog
- Department of Clinical Immunology, Section 2034, Rigshospitalet, Copenhagen, Denmark
| | | | | | - Morten Hanefeld Dziegiel
- Department of Clinical Immunology, Section 2034, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
3
|
Langhi Júnior D, Albuquerque S, Serafim R, Duarte GDC, Covas DT, Bordin JO. Serological and Molecular Study of the Duffy Blood Group among Malarial Endemic Region Residents in Brazil. Rev Soc Bras Med Trop 2022; 55:e0490. [PMID: 35946633 PMCID: PMC9344938 DOI: 10.1590/0037-8682-0490-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/30/2021] [Indexed: 11/23/2022] Open
Abstract
Background: The atypical chemokine receptor 1 (ACKR1) gene encodes the Duffy blood group antigens in two allelic forms: FY*A (FY*01) and FY*B (FY*02), which define the Fy(a+b-), Fy(a-b+), and Fy(a+b+) phenotypes. FY*BES (FY*02N.01) is a single T to C substitution at nucleotide -67 that prevents the FY*B from being expressed in red blood cells (RBCs). Methods: We evaluated 250 residents from a Brazilian malarial endemic region (RsMR). All individuals were phenotyped for Fya and Fyb antigens and genotyped for FY*A, FY*B, FY*BSE , and FY*Bweak alleles. Results: Among the 250 individuals, 209 (83.6%) reported previous malaria infection, and 41 (16.4%) did not. The Fy(a+b+) phenotype was present in 97/250 (38.8%), while the Fy(a-b-) was present in 7/250 (2.8%). The FY*A/FY*B was found in 130/250 (52%) and the FY*A/FY*A in 45/250 (18%). The c.1-67>TC was present, in homozygosity, in 11/250 (4.4%). Among 34 individuals with the Fy(a+b-) and FYA*/FYB* mutations, 4/34 (11.8%) had homozygosity for the c.1-67T>C. One individual presented the Fy(a+b-), FY*A/FY*B, and c.1-67T>C in homozygosis, whereas the other presented the Fy(a+b-), FY*A/FY*A, and c.1-67T>C in heterozygosis. Conclusions: We reported a low prevalence of the Fy(a-b-) in persons who had previously been infected with Plasmodium vivax (67.5%). We observed that 102/141 (72.3%) individuals expressing the Fyb antigen had a P. vivax infection, indicating the importance of the Fyb antigen, silenced by a c.1-67T>C mutation in homozygosis, in preventing the P. vivax infection. We showed that the c.1-67T>C mutation in the FY*A did not silence the FY*A expression on RBCs.
Collapse
Affiliation(s)
- Dante Langhi Júnior
- Universidade Federal de São Paulo, Departamento de Oncologia Clínica e Experimental, São Paulo, SP, Brasil.,HHemo Hemoterapia SA, São Paulo, SP, Brasil
| | | | | | | | - Dimas Tadeu Covas
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brasil
| | - José O Bordin
- Universidade Federal de São Paulo, Departamento de Oncologia Clínica e Experimental, São Paulo, SP, Brasil.,HHemo Hemoterapia SA, São Paulo, SP, Brasil
| |
Collapse
|
4
|
Golassa L, Amenga-Etego L, Lo E, Amambua-Ngwa A. The biology of unconventional invasion of Duffy-negative reticulocytes by Plasmodium vivax and its implication in malaria epidemiology and public health. Malar J 2020; 19:299. [PMID: 32831093 PMCID: PMC7443611 DOI: 10.1186/s12936-020-03372-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/10/2020] [Indexed: 12/30/2022] Open
Abstract
Plasmodium vivax has been largely neglected over the past century, despite a widespread recognition of its burden across region where it is endemic. The parasite invades reticulocytes, employing the interaction between Plasmodium vivax Duffy binding protein (PvDBP) and human Duffy antigen receptor for chemokines (DARC). However, P. vivax has now been observed in Duffy-negative individuals, presenting a potentially serious public health problem as the majority of African populations are Duffy-negative. Invasion of Duffy-negative reticulocytes is suggested to be through duplication of the PvDBP and a novel protein encoded by P. vivax erythrocyte binding protein (EBP) genes. The emergence and spread of specific P. vivax strains with ability to invade Duffy-negative reticulocytes has, therefore, drawn substantial attention and further complicated the epidemiology and public health implication of vivax malaria. Given the right environment and vectorial capacity for transmission coupled with the parasite’s ability to invade Duffy-negative individuals, P. vivax could increase its epidemiological significance in Africa. In this review, authors present accruing knowledge on the paradigm shift in P. vivax invasion of Duffy-negative reticulocytes against the established mechanism of invading only Duffy-positive individuals and offer a perspective on the epidemiological diagnostic and public health implication in Africa.
Collapse
Affiliation(s)
- Lemu Golassa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia.
| | - Lucas Amenga-Etego
- West African Center for Cell Biology of Infectious Pathogens, University of Ghana, Accra, Ghana
| | - Eugenia Lo
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Alfred Amambua-Ngwa
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| |
Collapse
|
5
|
Höher G, Rodrigues MMDO, Waskow G, Agnes G, Von Burg PV, Onsten T, Fiegenbaum M, Almeida S. Identification of ACKR1 variants associated with altered Duffy phenotype expression in blood donors from southern Brazil. Transfus Apher Sci 2020; 59:102768. [PMID: 32276863 DOI: 10.1016/j.transci.2020.102768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/18/2020] [Accepted: 03/22/2020] [Indexed: 11/18/2022]
Abstract
The atypical chemokine receptor 1 gene (ACKR1) is responsible for the clinically significant Duffy blood group. The main antigens of this system, Fya and Fyb, can be related to a null or weak expression of the DARC protein. In the present work, we aimed to identify ACKR1 gene variants in blood donors from southern Brazil based on discrepancies between their serological and molecular typing results. Then, we analyzed the association of these variants with the expression of the Duffy phenotype. The Fy antigen types were determined via hemagglutination and real-time PCR (c.125 G > A, c.265C > T and c.-67T > C SNPs) tests in a sample composed of 382 regular repetitive voluntary blood donors to the Blood Bank of Hospital de Clínicas de Porto Alegre. An inconclusive correlation between phenotype-genotype analyses was found in 11 (2.88 %) donors, and the entire ACKR1 gene was sequenced in these samples. Our investigation found 11 genetic variants, four of which (c.-541C > T, c.21 + 150C > T, c.22-58A > G, and c.298 G > A SNPs) seem to have putative functional effects on the structure and expression of DARC undertaken for in silico analysis (SIFT, PolyPhen-2 and RegulomeDB). Molecular events can result in apparent discrepancies between red cell genotypes and phenotypes. Our findings provided insight into the molecular background of FY antigens to improve technical approaches for red cell genotyping.
Collapse
Affiliation(s)
- Gabriela Höher
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | | | - Gabriela Waskow
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Grasiela Agnes
- Laboratório de Biologia Molecular, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Pâmela Victoria Von Burg
- Laboratório de Biologia Molecular, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Tor Onsten
- Hospital de Clínicas de Porto Alegre - HCPA, Porto Alegre, Brazil
| | - Marilu Fiegenbaum
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Silvana Almeida
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil.
| |
Collapse
|
6
|
Łukasik E, Nowak I, Czerwinski M, Waśniowska K. Duffy blood group system - the frequency of Duffy antigen polymorphisms and novel mutations in the Polish population. Transfus Apher Sci 2019; 58:156-161. [PMID: 30639084 DOI: 10.1016/j.transci.2018.12.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/27/2018] [Accepted: 12/31/2018] [Indexed: 01/07/2023]
Abstract
Duffy blood group genes are highly polymorphic with the distribution of alleles varying between different populations and ethnic groups. The aim of this study was to genotype Duffy blood group antigens and to establish FY alleles frequency in the Polish population and screen for novel FY gene mutations. Duffy phenotype and genotype frequencies analysis was based on studies of 596 persons. All these subjects were genotyped by high-resolution melting (HRM) method. It was shown that phenotype Fy(a+b+), defined by genotypes FY*A/FY*B (33%), FY*A/FY*B298A (13%), and FY*A/FY*02W.01 (2.8%) was the most common in Polish population (˜49%), followed by Fy(a-b+), ˜29%, determined by genotypes arising from FY*B allele and all its variants. Fy(a+b-) phenotype occurred with a frequency of 21.3% and was defined by the following genotypes: FY*A/A (21%), and FY*A/02N.01 (0.3%). Among the Polish population the frequencies of FY*A, FY*B, and FY*B298A alleles were 45.7%, 36% and 15.5%, respectively. The alleles FY*B298A and FY*B combined together, represented higher frequency (51%) than FY*A. Alleles FY*02W.01 and FY*02N.01 had frequencies 2.51% and 0.25%, respectively. The distribution of Duffy genotypes in the Polish population was in accordance with Hardy-Weinberg equilibrium (p = 0.9682). Alleles in the genotypes are independent from each other (r = 0.0278, R2 = 0.00077). New mutations identified in the promoter region (c.-79T > C) and the coding region of the FY gene (c.147C > A and c.175 G > A) did not affect the Duffy antigen expression on erythrocyte. Although FY alleles frequency is known in different populations, no data for Polish population is available.
Collapse
Affiliation(s)
- Ewa Łukasik
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Izabela Nowak
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Marcin Czerwinski
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland; Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland
| | - Kazimiera Waśniowska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland; Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland.
| |
Collapse
|
7
|
Millard GM, Lopez GH, Turner EM, Lizarazu ME, Roots NM, Liew YW, Flower RL, Hyland CA. Modified expression of the KEL2 (k) blood group antigen attributed to p.Leu196Val amino acid change three residues from the K/k antigen polymorphism site: implications for donor screening. Transfusion 2018; 59:1156-1158. [PMID: 30586164 DOI: 10.1111/trf.15106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/31/2018] [Accepted: 11/09/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Glenda M Millard
- Clinical Services and Research Division, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Genghis H Lopez
- Clinical Services and Research Division, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Elise M Turner
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Maria E Lizarazu
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Naomi M Roots
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Yew-Wah Liew
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Robert L Flower
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| | - Catherine A Hyland
- Clinical Services and Research Division, Australian Red Cross Blood Service, Kelvin Grove, Queensland, 4059, Australia
| |
Collapse
|
8
|
Jongruamklang P, Gassner C, Meyer S, Kummasook A, Darlison M, Boonlum C, Chanta S, Frey BM, Olsson ML, Storry JR. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis of 36 blood group alleles among 396 Thai samples reveals region-specific variants. Transfusion 2018; 58:1752-1762. [PMID: 29656499 DOI: 10.1111/trf.14624] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/24/2018] [Accepted: 02/26/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Blood group phenotype variation has been attributed to potential resistance to pathogen invasion. Variation was mapped in blood donors from Lampang (northern region) and Saraburi (central region), Thailand, where malaria is endemic. The previously unknown blood group allele profiles were characterized and the data were correlated with phenotypes. The high incidence of the Vel-negative phenotype previously reported in Thais was investigated. STUDY DESIGN AND METHODS DNA from 396 blood donors was analyzed by matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry. Outliers were investigated by serology and DNA sequencing. Allele discrimination assays for SMIM1 rs1175550A/G and ACKR1 rs118062001C/T were performed and correlated with antigen expression. RESULTS All samples were phenotyped for Rh, MNS, and K. Genotyping/phenotyping for RhD, K, and S/s showed 100% concordance. Investigation of three RHCE outliers revealed an e-variant antigen encoded by RHCE*02.22. Screening for rs147357308 (RHCE c.667T) revealed a frequency of 3.3%. MN typing discrepancies in 41 samples revealed glycophorin variants, of which 40 of 41 were due to Mia . Nine samples (2.3%) were heterozygous for FY*01W.01 (c.265C > T), and six samples (1.5%) were heterozygous for JK*02N.01. All samples were wildtype SMIM1 homozygotes with 97% homozygosity for rs1175550A. CONCLUSIONS Matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry is an efficient method for rapid routine genotyping and investigation of outliers identified novel variation among our samples. The expected high prevalence of the Mi(a+) phenotype was observed from both regions. Of potential clinical relevance in a region where transfusion-dependent thalassemia is common, we identified two RHCE*02 alleles known to encode an e-variant antigen.
Collapse
Affiliation(s)
- Philaiphon Jongruamklang
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Christoph Gassner
- Molecular Diagnostics & Research (MOC), Blood Transfusion Service Zürich, Zürich-Schlieren, Switzerland
| | - Stefan Meyer
- Molecular Diagnostics & Research (MOC), Blood Transfusion Service Zürich, Zürich-Schlieren, Switzerland
| | - Aksarakorn Kummasook
- Department of Medical Technology, School of Allied Health Sciences, University of Phayao, Phayao, Thailand
| | - Marion Darlison
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Chayanun Boonlum
- Transfusion Medicine, Department of Medical Technology and Clinical Laboratory, Saraburi Hospital, Saraburi, Thailand
| | - Surin Chanta
- Transfusion Medicine, Department of Medical Technology and Clinical Laboratory, Lampang Hospital, Lampang, Thailand
| | - Beat M Frey
- Molecular Diagnostics & Research (MOC), Blood Transfusion Service Zürich, Zürich-Schlieren, Switzerland
| | - Martin L Olsson
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Clinical Immunology and Transfusion Medicine, Laboratory Medicine, Office of Medical Services, Lund, Sweden
| | - Jill R Storry
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Clinical Immunology and Transfusion Medicine, Laboratory Medicine, Office of Medical Services, Lund, Sweden
| |
Collapse
|
9
|
Schoeman EM, Roulis EV, Liew YW, Martin JR, Powley T, Wilson B, Millard GM, McGowan EC, Lopez GH, O'Brien H, Condon JA, Flower RL, Hyland CA. Targeted exome sequencing defines novel and rare variants in complex blood group serology cases for a red blood cell reference laboratory setting. Transfusion 2017; 58:284-293. [PMID: 29119571 DOI: 10.1111/trf.14393] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 08/21/2017] [Accepted: 09/05/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND We previously demonstrated that targeted exome sequencing accurately defined blood group genotypes for reference panel samples characterized by serology and single-nucleotide polymorphism (SNP) genotyping. Here we investigate the application of this approach to resolve problematic serology and SNP-typing cases. STUDY DESIGN AND METHODS The TruSight One sequencing panel and MiSeq platform was used for sequencing. CLC Genomics Workbench software was used for data analysis of the blood group genes implicated in the serology and SNP-typing problem. Sequence variants were compared to public databases listing blood group alleles. The effect of predicted amino acid changes on protein function for novel alleles was assessed using SIFT and PolyPhen-2. RESULTS Among 29 unresolved samples, sequencing defined SNPs in blood group genes consistent with serologic observation: 22 samples exhibited SNPs associated with varied but known blood group alleles and one sample exhibited a chimeric RH genotype. Three samples showed novel variants in the CROM, LAN, and RH systems, respectively, predicting respective amino acid changes with possible deleterious impact. Two samples harbored rare variants in the RH and FY systems, respectively, not previously associated with a blood group allele or phenotype. A final sample comprised a rare variant within the KLF1 transcription factor gene that may modulate DNA-binding activity. CONCLUSION Targeted exome sequencing resolved complex serology problems and defined both novel blood group alleles (CD55:c.203G>A, ABCB6:c.1118_1124delCGGATCG, ABCB6:c.1656-1G>A, and RHD:c.452G>A) and rare variants on blood group alleles associated with altered phenotypes. This study illustrates the utility of exome sequencing, in conjunction with serology, as an alternative approach to resolve complex cases.
Collapse
Affiliation(s)
- Elizna M Schoeman
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Eileen V Roulis
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Yew-Wah Liew
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Jacqueline R Martin
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Tanya Powley
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Brett Wilson
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Glenda M Millard
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Eunike C McGowan
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Genghis H Lopez
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Helen O'Brien
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Jennifer A Condon
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Melbourne, Victoria, Australia
| | - Robert L Flower
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| | - Catherine A Hyland
- Clinical Services and Research, Australian Red Cross Blood Service, Kelvin Grove, Queensland, Australia
| |
Collapse
|
10
|
Molecular basis of the Duffy blood group system. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2017; 16:93-100. [PMID: 28151395 DOI: 10.2450/2017.0119-16] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 12/21/2016] [Indexed: 11/21/2022]
Abstract
ACKR1, located on chromosome 1q23.2, is the gene that encodes a glycoprotein expressing the Duffy blood group antigens. This gene is transcribed in two mRNA variants yielding two isoforms, encoding proteins with 338 and 336 amino acids. This review provides a general overview of the Duffy blood group to characterise and elucidate the genetic basis of this system. The Fya and Fyb antigens are encoded by co-dominant FY*A (FY*01) and FY*B (FY*02) alleles, which differ by c.125G>A (rs12075), defining the Fy(a+b-), Fy(a-b+) and Fy(a+b+) phenotypes. The Fy(a-b-) phenotype that occurs in Africans provides an explanation for the apparent absence of Plasmodium vivax in this region: this phenotype arises from homozygosity for the FY*B allele carrying a point mutation c.1-67T>C (rs2814778), which prevents Fyb antigen expression only in red blood cells. The same mutation has also been found on the FY*A allele, but it is very rare. The Fy(a-b-) phenotype in Europeans and Asians arises from mutations in the coding region of the FY*A or FY*B allele, preventing Duffy antigen expression on any cell in the body and thus are true Duffy null phenotypes. According to the International Society for Blood Transfusion, ten alleles are associated with the null expression of the Fy antigens. Furthermore, different allelic forms of FY*B modify Fyb antigen expression, which may result in very weak or equivocal serology results. The mostly common found variants, c.265C>T (rs34599082) and c.298G>A (rs13962) -previously defined in combination only with the FY*B allele - have already been observed in the FY*A allele. Thus, six alleles have been recognised and associated with weak expression of the Fy antigens. Considering the importance of the Duffy blood group system in clinical medicine, additional studies via molecular biology approaches must be performed to resolve and clarify the discrepant results that are present in the erythrocyte phenotyping.
Collapse
|
11
|
Goldman M, Cemborain A, Cote J, El Hamss R, Flower RL, Garaizar A, Garcia-Sanchez F, Hyland CA, Kalvelage M, Londero D, Lopez GH, Revelli N, Rodriguez-Wilhelmi P, Villa A, Ochoa-Garay G. Identification of six new RHCE variant alleles in individuals of diverse racial origin. Transfusion 2015; 56:244-8. [PMID: 26435076 DOI: 10.1111/trf.13357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/22/2015] [Accepted: 07/29/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND The introduction of molecular methods into routine blood typing is prompting the identification of new blood group alleles. Discrepancies between the results of genotyping and serology or chance events uncovered during genotyping prompted additional investigations, which revealed six new RHCE variant alleles. STUDY DESIGN AND METHODS Samples from eight blood donors, two patients (one prenatal), and a patient's relative, all of diverse racial origin, were analyzed by standard serology methods, targeted genotyping arrays, DNA sequencing, and allele-specific polymerase chain reaction. RESULTS Six new RHCE alleles were identified, namely, RHCE*cE84A, RHCE*ce202G, RHCE*ce307T, RHCE*Ce377G, RHCE*ce697G,712G,733G,744C, and RHCE*Ce733G. CONCLUSION While implementation of new assays in commercial genotyping platforms to detect the polymorphisms reported here may not be justified given their apparent rarity, software interpretative algorithms may benefit from the identification of new alleles for a more accurate determination of genotypes and prediction of phenotypes.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Nicoletta Revelli
- Ospedale Maggiore Policlinico Fondazione IRCCS Ca' Granda, Milano, Italy
| | | | - Antonietta Villa
- Ospedale Maggiore Policlinico Fondazione IRCCS Ca' Granda, Milano, Italy
| | | |
Collapse
|
12
|
Lopez GH, Morrison J, Condon JA, Wilson B, Martin JR, Liew YW, Flower RL, Hyland CA. Duffy blood group phenotype-genotype correlations using high-resolution melting analysis PCR and microarray reveal complex cases including a new null FY*A allele: the role for sequencing in genotyping algorithms. Vox Sang 2015; 109:296-303. [PMID: 25900316 DOI: 10.1111/vox.12273] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/12/2015] [Accepted: 02/13/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND OBJECTIVES Duffy blood group phenotypes can be predicted by genotyping for single nucleotide polymorphisms (SNPs) responsible for the Fy(a) /Fy(b) polymorphism, for weak Fy(b) antigen, and for the red cell null Fy(a-b-) phenotype. This study correlates Duffy phenotype predictions with serotyping to assess the most reliable procedure for typing. MATERIALS AND METHODS Samples, n = 155 (135 donors and 20 patients), were genotyped by high-resolution melt PCR and by microarray. Samples were in three serology groups: 1) Duffy patterns expected n = 79, 2) weak and equivocal Fy(b) patterns n = 29 and 3) Fy(a-b-) n = 47 (one with anti-Fy3 antibody). RESULTS Discrepancies were observed for five samples. For two, SNP genotyping predicted weak Fy(b) expression discrepant with Fy(b-) (Group 1 and 3). For three, SNP genotyping predicted Fy(a) , discrepant with Fy(a-b-) (Group 3). DNA sequencing identified silencing mutations in these FY*A alleles. One was a novel FY*A 719delG. One, the sample with the anti-Fy3, was homozygous for a 14-bp deletion (FY*01N.02); a true null. CONCLUSION Both the high-resolution melting analysis and SNP microarray assays were concordant and showed genotyping, as well as phenotyping, is essential to ensure 100% accuracy for Duffy blood group assignments. Sequencing is important to resolve phenotype/genotype conflicts which here identified alleles, one novel, that carry silencing mutations. The risk of alloimmunisation may be dependent on this zygosity status.
Collapse
Affiliation(s)
- G H Lopez
- Research and Development, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| | - J Morrison
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| | - J A Condon
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, West Melbourne, VIC, Australia
| | - B Wilson
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| | - J R Martin
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| | - Y-W Liew
- Red Cell Reference Laboratory, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| | - R L Flower
- Research and Development, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| | - C A Hyland
- Research and Development, Australian Red Cross Blood Service, Kelvin Grove, QLD, Australia
| |
Collapse
|