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Tozatto-Maio K, Torres MA, Degaide NHS, Cardoso JF, Volt F, Pinto ACS, Oliveira D, Elayoubi H, Kashima S, Loiseau P, Veelken H, Ferster A, Cappelli B, Rodrigues ES, Scigliuolo GM, Kenzey C, Ruggeri A, Rocha V, Simões BP, Tamouza R, Gluckman E. HLA-Matched Unrelated Donors for Patients with Sickle Cell Disease: Results of International Donor Searches. Biol Blood Marrow Transplant 2020; 26:2034-2039. [PMID: 32712327 DOI: 10.1016/j.bbmt.2020.07.015] [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: 05/04/2020] [Revised: 07/07/2020] [Accepted: 07/11/2020] [Indexed: 01/31/2023]
Abstract
Sickle cell disease (SCD) is the most common inherited hemoglobinopathy. Hematopoietic stem cell transplantation (HCT) is the sole curative therapy for SCD, but few patients will have a matched sibling donor. Patients with SCD are mostly of African origin and thus are less likely to find a matched unrelated donor in international registries. Using HaploStats, we estimated HLA haplotypes for 185 patients with SCD (116 from a Brazilian center and 69 from European Society for Blood and Marrow Transplantation [EBMT] centers) and classified the ethnic origin of haplotypes. Then we assessed the probability of finding an HLA-matched unrelated adult donor (MUD), considering loci A, B, and DRB1 (6/6), in international registries. Most haplotypes were African, but Brazilians showed a greater ethnic admixture than EBMT patients. Nevertheless, the chance of finding at least one 6/6 potential allelic donor was 47% for both groups. Most potential allelic donors were from the US National Marrow Donor Program registry and from the Brazilian REDOME donor registry. Although the probability of finding a donor is higher than previously reported, strategies are needed to improve ethnic diversity in registries. Moreover, predicting the likelihood of having an MUD might influence SCD management.
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Affiliation(s)
- Karina Tozatto-Maio
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Center for Cell-Based Therapy, Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Department of Hematology, Clinics Hospital, University of São Paulo Medical School, São Paulo, Brazil.
| | | | - Neifi Hassan Saloum Degaide
- Center for Cell-Based Therapy, Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Juliana Fernandes Cardoso
- Brazilian Bone Marrow Registry (REDOME), Instituto Nacional do Câncer, Ministério da Saúde, Rio de Janeiro, Brazil
| | - Fernanda Volt
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Ana Cristina Silva Pinto
- Center for Cell-Based Therapy, Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Danielli Oliveira
- Brazilian Bone Marrow Registry (REDOME), Instituto Nacional do Câncer, Ministério da Saúde, Rio de Janeiro, Brazil
| | - Hanadi Elayoubi
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Simone Kashima
- Center for Cell-Based Therapy, Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Pascale Loiseau
- Saint Louis Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Hendrik Veelken
- Bone Marrow Transplantation Centre Leiden, Leiden University Hospital, Leiden, The Netherlands
| | - Alina Ferster
- Department of Hematology/Oncology, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, B-1020 Brussels, Belgium
| | - Barbara Cappelli
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Evandra Strazza Rodrigues
- Center for Cell-Based Therapy, Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Graziana Maria Scigliuolo
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Chantal Kenzey
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Annalisa Ruggeri
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Haematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Vanderson Rocha
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Department of Hematology, Clinics Hospital, University of São Paulo Medical School, São Paulo, Brazil; Department of Hematology, Churchill Hospital, University of Oxford, Oxford, United Kingdom
| | - Belinda Pinto Simões
- Center for Cell-Based Therapy, Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Ryad Tamouza
- INSERM U955, Centre Hospitalier Universitaire Henri Mondor, Créteil, France
| | - Eliane Gluckman
- Monacord, Centre Scientifique de Monaco, Principauté de Monaco, Monaco; Eurocord, Hôpital Saint Louis, Institut de recherche Saint Louis, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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Boquett JA, Bisso-Machado R, Zagonel-Oliveira M, Schüler-Faccini L, Fagundes NJR. HLA diversity in Brazil. HLA 2019; 95:3-14. [PMID: 31596032 DOI: 10.1111/tan.13723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/11/2019] [Accepted: 10/04/2019] [Indexed: 01/18/2023]
Abstract
Brazil is the fifth largest country in the world in area and the fifth most populous. The Brazilian voluntary Bone Marrow Donor Registry is the third largest in terms of number of donors in the world, being a valuable source of HLA genetics to characterize the donor population of Brazil as well. The genetic background of the Brazilian population is quite heterogeneous, resulting from 5 centuries of admixture among Native Americans, Europeans and Africans, making the Brazilian population unique in terms of genetic ancestry. The unique characteristics of populations in different Brazilian regions make them an exciting focus for genetic diversity studies. Studies on HLA genetic diversity of Brazilian populations have been conducted since the late 1980s and, in this review, we highlight the main findings from studies carried out in Brazil based on classical HLA. In addition, we calculated the genetic distance from the molecular data of the studies included in this review in order to have a broader view of the HLA diversity in Brazilian populations. We emphasize that characterization of HLA diversity is not only important for transplantation programs, but can shed a light on ancestry, history and other demographic patterns with or without association with autoimmune disease.
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Affiliation(s)
- Juliano A Boquett
- Instituto Nacional de Genética Médica Populacional (iNaGeMP), Porto Alegre, Brazil.,Post-graduate Program in Child and Adolescent Health, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Post-graduate Program in Genetics and Molecular Biology, Genetics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rafael Bisso-Machado
- Post-graduate Program in Genetics and Molecular Biology, Genetics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Marcelo Zagonel-Oliveira
- Instituto Nacional de Genética Médica Populacional (iNaGeMP), Porto Alegre, Brazil.,Applied Computing Graduate Program, Advanced Visualization & Geoinformatics Laboratory (VIZLab), Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil
| | - Lavínia Schüler-Faccini
- Instituto Nacional de Genética Médica Populacional (iNaGeMP), Porto Alegre, Brazil.,Post-graduate Program in Child and Adolescent Health, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Post-graduate Program in Genetics and Molecular Biology, Genetics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Nelson J R Fagundes
- Instituto Nacional de Genética Médica Populacional (iNaGeMP), Porto Alegre, Brazil.,Post-graduate Program in Genetics and Molecular Biology, Genetics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Hellmann DM, Radojska S, Fimmers R, Gathof BS. Probability of success in the search for a related bone marrow donor in Cologne, Germany using HLA-A, -B and -DRB1 haplotype frequencies. HLA 2018; 92:154-159. [PMID: 30054987 PMCID: PMC6749562 DOI: 10.1111/tan.13356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 07/04/2018] [Accepted: 07/23/2018] [Indexed: 12/12/2022]
Abstract
Between 2004 and 2013, 603 patients and their relatives (n = 1297) were typed as part of the search for a suitable HLA-matched donor in their nuclear and extended families at the central service provider for transfusion medicine at the University Hospital of Cologne. The high success rate in finding donors over the years at our center (38.1%) led us to examine our database retrospectively in order to evaluate the donor search and haplotype frequencies (HFs) in the sample. Our goal was to identify the factors contributing to this high success rate and also to compare the HFs we observed with other reported haplotype frequency estimations (HFE) for the Cologne area. Probability estimations for a successful donor search were constructed based on the HFEs for the sample.
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Affiliation(s)
- Daniel M Hellmann
- Transfusion Medicine, University Hospital of Cologne, Cologne, Germany
| | - Stela Radojska
- Transfusion Medicine, University Hospital of Cologne, Cologne, Germany
| | - Rolf Fimmers
- Institute of Medical Biometry, Informatics and Epidemiology (IMBIE), University of Bonn, Bonn, Germany
| | - Birgit S Gathof
- Transfusion Medicine, University Hospital of Cologne, Cologne, Germany
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