1
|
Arnoni CP, Vendrame T, Muniz J, Cortez A, Latini F, Castilho L. RHCE diversity among Brazilian patients with sickle cell disease (SCD) and selected groups of blood donors. Transfusion 2021; 61:3473-3482. [PMID: 34590710 DOI: 10.1111/trf.16689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Several centers have selected Black donors to prevent Rh alloimmunization of patients with sickle cell disease (SCD). As the Brazilian population is considered very admixed and race definition by self-declaration is questionable, this study aimed to compare RHCE diversity among patients with SCD and selected groups of Brazilian blood donors to define which group of donors would be the adequate red cell supply for patients with SCD. METHOD We compared RHCE allele frequencies between patients with SCD and four groups of Brazilian blood donors: self-declared Black donors (SDB), donors with predominant African genetic markers (AAM), donors with weak D expression (WDD), and random donors (RDs). Variant RHCE alleles were identified using molecular protocols. RESULTS Among patients with SCD, 47% had at least one variant RHCE, in SDB and WDD this frequency was higher, 53% and 58.6%, respectively. In AAM and in RD the frequencies were 32% and 27.6%, respectively. In patients with SCD and SDB, the most common alleles were RHCE*ce.01, RHCE*ceVS.01, and RHCE*ceVS.02. WDD had a high frequency of RHCE*ceAR and highest frequency of variant RHCE in both alleles, followed by patients with SCD and SDB. CONCLUSION This study showed that even in an admixed population the selection of SDB donors is the best choice of matching for transfusion support in patients with SCD. For specific RHCE alleles, selection of donors with weak D expression could be a good option.
Collapse
Affiliation(s)
- Carine Prisco Arnoni
- Scientific Technical Department, Colsan - Associação Beneficente de Coleta de Sangue, São Paulo, Brazil
| | | | - Janaína Muniz
- Scientific Technical Department, Colsan - Associação Beneficente de Coleta de Sangue, São Paulo, Brazil
| | - Afonso Cortez
- Scientific Technical Department, Colsan - Associação Beneficente de Coleta de Sangue, São Paulo, Brazil
| | - Flavia Latini
- Scientific Technical Department, Colsan - Associação Beneficente de Coleta de Sangue, São Paulo, Brazil
| | | |
Collapse
|
2
|
Osman NH, Sathar J, Leong CF, Zulkifli NF, Raja Sabudin RZA, Othman A, Ahmad Asnawi AW. Importance of extended blood group genotyping in multiply transfused patients. Transfus Apher Sci 2017; 56:410-416. [PMID: 28438419 DOI: 10.1016/j.transci.2017.03.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 10/20/2016] [Accepted: 03/12/2017] [Indexed: 11/15/2022]
Abstract
Blood group antigen systems are not limited to the ABO blood groups. There is increasing interest in the detection of extended blood group systems on the red cell surface. The conventional method used to determine extended blood group antigens or red cell phenotype is by serological testing, which is based on the detection of visible haemagglutination or the presence of haemolysis. However, this technique has many limitations due to recent exposure to donor red cell, certain drugs or medications or other diseases that may alter the red cell membrane. We aimed to determine the red cell blood group genotype by SNP real time PCR and to compare the results with the conventional serological methods in multiply transfused patients. Sixty-three patients participated in this study whose peripheral blood was collected and blood group phenotype was determined by serological tube method while the genotype was performed using TaqMan® Single Nucleotide Polymorphism (SNP) RT-PCR assays for RHEe, RHCc, Kidd and Duffy blood group systems. Discrepancies were found between the phenotype and genotype results for all blood groups tested. Accurate red blood cell antigen profiling is important for patients requiring multiple transfusions. The SNP RT-PCR platform is a reliable alternative to the conventional method.
Collapse
Affiliation(s)
- Nadila Haryani Osman
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia.
| | - Jameela Sathar
- Department of Haematology, Hospital Ampang, Selangor, Malaysia.
| | - Chooi Fun Leong
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
| | - Noor Fadzilah Zulkifli
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia.
| | | | - Ainoon Othman
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia.
| | - Asral Wirda Ahmad Asnawi
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia.
| |
Collapse
|
3
|
Nance S, Scharberg EA, Thornton N, Yahalom V, Sareneva I, Lomas-Francis C. International rare donor panels: a review. Vox Sang 2015; 110:209-18. [DOI: 10.1111/vox.12357] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 08/11/2015] [Accepted: 09/20/2015] [Indexed: 12/27/2022]
Affiliation(s)
- S. Nance
- IRL; Biomedical Services; American Red Cross; Philadelphia PA USA
| | - E. A. Scharberg
- Institute for Transfusion Medicine and Immunohematology; Red Cross Transfusion Service of Baden-Wuerttemberg-Hessen gGmbH; Baden-Baden Germany
| | - N. Thornton
- The International Blood Group Reference Laboratory; NHS Blood and Transplant; Filton Bristol UK
| | - V. Yahalom
- National Blood Services; Ramat Gan Israel
| | - I. Sareneva
- Blood Group Unit; Finnish Red Cross Blood Service; Helsinki Finland
| | - C. Lomas-Francis
- New York Blood Center; Laboratory of Immunohematology and Genomics; Long Island City NY USA
| |
Collapse
|
4
|
Affiliation(s)
- T. Peyrard
- Département Centre National de Référence pour les Groupes Sanguins; Institut National de la Transfusion Sanguine (INTS); Paris France
| |
Collapse
|
5
|
Flegel WA, Chiosea I, Sachs UJ, Bein G. External quality assessment in molecular immunohematology: the INSTAND proficiency test program. Transfusion 2013; 53:2850-8. [PMID: 24111785 DOI: 10.1111/trf.12414] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 08/08/2013] [Accepted: 08/08/2013] [Indexed: 01/17/2023]
Abstract
BACKGROUND Genotyping for red blood cell (RBC), platelet (PLT), and granulocyte antigens is a new tool for clinical pathology, transfusion medicine services, and blood banks. Proficiency in laboratory tests can be established by external quality assessments (EQAs), which are required for clinical application in many health care systems. There are few EQAs for molecular immunohematology. STUDY DESIGN AND METHODS We analyzed the participation and pass rates in an EQA for RBC, PLT, and granulocyte antigens. This EQA was distributed by INSTAND, a large nonprofit provider of proficiency tests, twice per year since Fall 2006 as EQA Number 235 Immunohematology A (molecular diagnostic). The coordinators defined at the outset which alleles are mandatory for detection. RESULTS The number of participants steadily increased from 51 to 73 per proficiency by Fall 2012. More than 60 institutions utilized this EQA at least once a year. Approximately 80% of them participated in RBC, 68% in PLT, and 22% in granulocyte systems. With the exceptions of RHD (82%) and granulocytes (85%), pass rates exceeded 93%. While the pass rate increased for granulocyte and decreased for the ABO system, the pass rates for the other systems changed little over 6½ years. CONCLUSIONS The INSTAND proficiency test program was regularly used for EQA by many institutions, particularly in Central Europe. While the technical standards and pass rates in the participating laboratories were high, there has been little improvement in pass rates since 2006.
Collapse
Affiliation(s)
- Willy A Flegel
- Department of Transfusion Medicine, NIH Clinical Center, National Institutes of Health, Bethesda, Maryland
| | | | | | | |
Collapse
|
6
|
Peyrard T. Use of genomics for decision-making in transfusion medicine: laboratory practice. ACTA ACUST UNITED AC 2013. [DOI: 10.1111/voxs.12002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
7
|
A new strategy to identify rare blood donors: single polymerase chain reaction multiplex SNaPshot reaction for detection of 16 blood group alleles. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2013; 12 Suppl 1:s256-63. [PMID: 23736910 DOI: 10.2450/2013.0242-12] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 12/11/2012] [Indexed: 11/21/2022]
Abstract
BACKGROUND As an alternative to phenotyping, large-scale DNA-based assays, which are feasible for high-throughput donor red blood cell typing, were developed for determination of blood group polymorphisms. However, high-throughput genotyping platforms based on these technologies are still expensive and the inclusion of single nucleotide polymorphisms and analysis of the alleles depend on the manufacturer's determination. To overcome this limitation and in order to develop an assay to enable the screening of rare donors, we developed a SNaPshot assay for analysis of nine single nucleotide polymorphisms related to antigens that are difficult to assess using conventional serology. MATERIALS AND METHODS The single polymerase chain reaction multiplex SNaPshot reaction was optimized to identify nine single nucleotide polymorphisms determining 16 alleles: KEL*3/KEL*4, KEL*6/KEL*7, DI*1/DI*2, DI*3/DI*4, YT*1/YT*2, CO*1/CO*2, DO*1/DO*2, DO*4, DO*5. We designed a single multiplex PCR with primers encompassing the blood group single nucleotide polymorphisms and performed an internal reaction with probe primers able to discriminate the alleles after fragment analysis. The SNaPshot assay was validated with 140 known alleles previously determined by PCR restriction fragment length polymorphism. RESULTS We were able to simultaneous detect nine single nucleotide polymorphisms defining 16 blood group alleles on an assay based on a multiplex PCR combined with a single base extension using genomic DNA. DISCUSSION This study demonstrates a robust genotyping strategy for conducting rare donor screening which can be applied in blood centers and could be an important tool for identifying antigen-negative donors and, therefore, for providing rare blood.
Collapse
|
8
|
Pham BN, Ramelet S, Wibaut B, Juszczak G, Loukil C, Dubeaux I, Gien D, Kappler-Gratias S, Rouger P, Le Pennec PY. Molecular background of novel silent RHCE alleles. Transfusion 2012; 53:2990-9. [PMID: 23252593 DOI: 10.1111/trf.12023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/23/2012] [Accepted: 10/28/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND The absence of expression of C/c and E/e antigens has been associated with rare variant RHCE alleles, referred to as silent RHCE alleles, classically identified among individuals with a rare D- - or Rhnull phenotype. This work reports on different molecular mechanisms identified in three novel silent RHCE alleles. STUDY DESIGN AND METHODS Samples from D- - or Rhnull individuals and their family members, from families for whom Rh phenotype and/or serologic data were unexplained by inheritance of conventional RH alleles, were analyzed. Genomic DNA and transcripts were tested by sequencing analysis. RESULTS The first silent allele was a RHCE*cE allele carrying an intronic IVS3+5G>A mutation. The second was a RHCE*ce allele carrying an intronic IVS7-2A>G mutation, whereas the third was a silent RHCE*ce allele carrying a 5-bp deletion (Nucleotides 679-683) in Exon 5. CONCLUSION In addition to hybrid alleles and nucleotide deletion, intronic mutations may be associated with the nonexpression of RhCE antigens. Regarding the RH system, silent alleles may not be investigated among D- - or Rhnull individuals only. Rh phenotype and/or serologic data unexplained by inheritance of conventional RH alleles should lead to molecular investigations.
Collapse
Affiliation(s)
- Bach-Nga Pham
- CNRGS-INSERM U665, Institut National de la Transfusion Sanguine, Paris, France; CHU Lille, Institut d'Hématologie Transfusion, Lille, France; Etablissement Français du Sang, Centre Atlantique, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Castilho L. Applying molecular immunohematology discoveries to daily transfusion practice. Rev Bras Hematol Hemoter 2012; 34:184-5. [PMID: 23049415 PMCID: PMC3459622 DOI: 10.5581/1516-8484.20120045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 04/10/2012] [Indexed: 11/27/2022] Open
Affiliation(s)
- Lilian Castilho
- Universidade Estadual de Campinas - UNICAMP, Campinas, SP, Brazil
| |
Collapse
|
10
|
Boyle J, Thorpe SJ, Hawkins JR, Lockie C, Fox B, Matejtschuk P, Halls C, Metcalfe P, Rigsby P, Armstrong-Fisher S, Varzi AM, Urbaniak S, Daniels G. International reference reagents to standardise blood group genotyping: evaluation of candidate preparations in an international collaborative study. Vox Sang 2012; 104:144-52. [DOI: 10.1111/j.1423-0410.2012.01641.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
11
|
Butler CE, Dickens EL. Transfusion tomorrow: Royal College of Pathologists, November 2010. Transfus Med 2011; 21:224-30. [PMID: 21733005 DOI: 10.1111/j.1365-3148.2011.01091.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- C E Butler
- Department of Haematology, John Radcliffe Hospital, Oxford, UK.
| | | |
Collapse
|
12
|
Abstract
Transfusion remains the main treatment of sickle cell disease patients. Red cell alloimmunization is frequent because of the antigen disparities between patients of African descent and donors of European ancestry. Alloimmunization is associated with severe hemolytic transfusion reaction, autoantibody formation, and difficulties in the management of transfusion compatibility. Beside common antigens, a number of different RH variant antigens found in individuals of African descent can be involved in alloimmunization. If some variants, such as Hr(S) negative antigens, are known to prone significant alloantibodies and delayed hemolytic transfusion reactions, it is not clear whether all the described variants represent a clinical risk for sickle cell disease patients. The knowledge of the clinical relevance of RH variants is a real issue. An abundance of molecular tools are developed to detect variants, but they do not distinguish those likely to prone immunization from those that are unlikely to prone immunization and delayed hemolytic transfusion reactions. A strategy of prevention, which generally requires rare red blood cells, cannot be implemented without this fundamental information. In this review, we discuss the relevance of RH variants in sickle cell disease, based on the published data and on our experience in transfusion of these patients.
Collapse
|
13
|
Daniels G, van der Schoot CE, Olsson ML. Report of the Fourth International Workshop on molecular blood group genotyping. Vox Sang 2011; 101:327-32. [DOI: 10.1111/j.1423-0410.2011.01540.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
14
|
Monteiro F, Tavares G, Ferreira M, Amorim A, Bastos P, Rocha C, Araújo F, Cunha-Ribeiro LM. Technologies involved in molecular blood group genotyping. ACTA ACUST UNITED AC 2011. [DOI: 10.1111/j.1751-2824.2011.01425.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|