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Ben Bnina A, Yessine A, El Bahri Y, Chouchene S, Ben Lazrek N, Mimouna M, Mlika Z, Messoudi A, Zellama D, Sahtout W, Bouatay A. Contribution of HLA class I (A, B, C) and HLA class II (DRB1, DQA1, DQB1) alleles and haplotypes in exploring ethnic origin of central Tunisians. BMC Med Genomics 2024; 17:65. [PMID: 38424564 PMCID: PMC10903062 DOI: 10.1186/s12920-024-01821-x] [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: 10/11/2023] [Accepted: 01/30/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Estimation of HLA (Human leukocyte Antigen) alleles' frequencies in populations is essential to explore their ethnic origin. Anthropologic studies of central Tunisian population were rarely reported. Then, in this work, we aimed to explore the origin of central Tunisian population using HLA alleles and haplotypes frequencies. METHODS HLA class I (A, B, C) and HLA class II (DRB1, DQA1, DQB1) loci genotyping of 272 healthy unrelated organ donors was performed by Polymerase Chain Reaction-Sequence Specific Oligonucleotide (PCR-SSO). We compared central Tunisians with other populations (Arabs, Berbers, Mediterraneans, Europeans, Africans, etc.) using alleles and haplotypes frequencies, genetic distances, Neighbour-Joining dendrogram and correspondence analysis. RESULTS Among the 19 HLA A alleles, the 26 HLA B alleles, the 13 HLA C alleles, the 15 HLA DRB1 alleles, the 6 HLA DQA1 alleles and the 5 HLA DQB1 alleles identified in the studied population, HLA A*02 (22.8%), HLA B*50 (13.1%), HLA C*06 (21.8%), HLA DRB1*07 (17.8%), HLA DQA1*01 (32.1%) and HLA DQB1*03 (31.6%) were the most frequent alleles. The extended haplotypes HLA A*02-B*50-C*06-DRB1*07-DQA1*02-DQB1*02 (1.97%) was the most frequent HLA six-loci haplotype. CONCLUSION Central Tunisians were very close to other Tunisian populations, to Iberians and North Africans. They were rather distant from sub-Saharan populations and eastern Mediterraneans especially Arabs although the strong cultural and religious impact of Arabs in this population.
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Affiliation(s)
- Amène Ben Bnina
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
- Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
| | - Amri Yessine
- Biochemistry Laboratory, Béchir Hamza Children's Hospital, Bab Saadoun Square, 1007, Tunis, Tunisia.
- Department of Educational Sciences, University of Jendouba, Higher Institute of Applied Studies in Humanity Le Kef, Kef, Tunisia.
| | - Yasmine El Bahri
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
- Faculty of Medicine, University of Sousse, Sousse, Tunisia
| | - Saoussen Chouchene
- Hematology Laboratory, Fatouma Bourguiba Teaching Hospital, Sousse, Tunisia
- Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
| | - Nada Ben Lazrek
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
| | - Mariem Mimouna
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
| | - Zeineb Mlika
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
| | - Aziza Messoudi
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
| | - Dorsaf Zellama
- Nephrology Department, Sahloul University Hospital, Sousse, Tunisia
- Faculty of Medicine, University of Sousse, Sousse, Tunisia
| | - Wissal Sahtout
- Nephrology Department, Sahloul University Hospital, Sousse, Tunisia
- Faculty of Medicine, University of Sousse, Sousse, Tunisia
| | - Amina Bouatay
- Hematology Laboratory, Sahloul University Hospital, Sousse, Tunisia
- Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
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Espada E, Ligeiro D, Trindade H, Lacerda JF. HLA frequency distribution of the Portuguese bone marrow donor registry. Front Immunol 2023; 14:1286001. [PMID: 38149254 PMCID: PMC10749969 DOI: 10.3389/fimmu.2023.1286001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/22/2023] [Indexed: 12/28/2023] Open
Abstract
Introduction The Portuguese donor Registry of CEDACE was the fifth largest per capita bone marrow donor Registry of the WMDA as of 2019 and has yet to be thoroughly analyzed. We aimed to characterize its various aspects, including demographics and HLA allele and haplotype frequencies, to evaluate the genetic matching propensity score and ultimately further develop it. Methods We described and compared characteristics of the donor population with census data and used an Expectation-Maximization algorithm and analyses of molecular variance to assess haplotype frequencies and establish phylogenetic distances between regions and districts within the country. Results We identified 396545 donors, corresponding to 3.85% of the Portuguese population; the median donor age was 39 years, with 60.4% of female donors. Most donors were Portuguese nationals, although 40 other nationalities were present, with a significant proportion of donors from Brazil and Portuguese-speaking African Countries; almost all donors self-reported as Western, with the second largest group reporting African ancestry. There was an asymmetric contribution of donors from different districts and regions, with most coming from coastal districts and few from the southern districts and autonomous regions; foreign and self-declared non-Western donors were mainly located in the Metropolitan Area of Lisbon and the South. Although most donors were typed in three loci (HLA-A, HLA-B and HLA-DRB1), only 44% were also typed in HLA-C, 1.28% in HLA-DQB1 and only 0.77% in all five loci and in high-resolution. There were varying allele and haplotype frequencies across districts and regions, with the most common three loci, low-resolution haplotypes, being HLA-A*01~B*08~DRB1*03, A*29~B*44~DRB1*07 and HLA-A*02~B*44~DRB1*04; some haplotypes were more prevalent in the South, others in the North and a few in the autonomous regions; African and foreign donors presented relevant differences in haplotype frequency distributions, including rare haplotypes of potential interest. We also report on four loci, low-resolution frequency distributions. Using AMOVA, we compared genetic distances between districts and regions, which recapitulated the country's geography. Discussion Our analysis showed potential paths to optimization of the Registry, including increasing the male donor pool and focusing on underrepresented districts and particular populations of interest, such as donors from Portuguese-speaking African countries.
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Affiliation(s)
- Eduardo Espada
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Serviço de Hematologia e Transplantação de Medula, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, EPE, Lisbon, Portugal
| | - Dário Ligeiro
- Centro de Sangue e Transplantação de Lisboa, Instituto Português do Sangue e da Transplantação, IP, Lisbon, Portugal
- Immunosurgery Unit, Centro Clínico Champalimaud, Lisbon, Portugal
| | - Hélder Trindade
- Centro de Sangue e Transplantação de Lisboa, Instituto Português do Sangue e da Transplantação, IP, Lisbon, Portugal
| | - João F. Lacerda
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Serviço de Hematologia e Transplantação de Medula, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, EPE, Lisbon, Portugal
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Alsalamah F, Alageel MK, Alzahrani R, Alowairdhi Y, Alkahtani N, Masuadi E, Jawdat D. Perceptions and Attitudes Regarding Hematopoietic Stem Cell Donation Among Blood Donors in Riyadh, Saudi Arabia. Cureus 2023; 15:e51406. [PMID: 38292969 PMCID: PMC10826896 DOI: 10.7759/cureus.51406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2023] [Indexed: 02/01/2024] Open
Abstract
Introduction In recent years, there has been a growing trend toward using stem cell transplantation for therapeutic purposes, making a positive impact in the medical field. Access to a compatible and willing donor is essential for those therapeutic purposes, yet the current number of registered donors remains inadequate. The present study aimed to investigate the attitude and perception of stem cell donation among blood donors in Saudi Arabia while also exploring their knowledge of hematopoietic stem cells, willingness towards donation, and fear of complications after stem cell donation. Methods A cross-sectional study was implemented to investigate the perception and attitude toward stem cell donation among blood donors in Riyadh, Saudi Arabia, through a validated self-administered questionnaire. The questionnaire comprised 35 questions divided into five sections, namely, demographics, knowledge, attitude, willingness, and fear of stem cell donation. Results The survey was distributed to 400 subjects. Out of the 400 respondents, 98.8% (n=395) were male, and 90.8% (n=363) were Saudi nationals. The majority had a high school level of education (n=259, 64.75%). Only 10.8% (n=43) of the participants were knowledgeable about stem cells. Knowledge of stem cells was highest among females aged 40-49 years, participants knowledgeable of platelet donation, and participants who donated blood more than 10 times (p-value <0.05). Participants with a bachelor's or master's degree had significantly more fear of stem cell donation complications, with a p-value of 0.003. The attitude toward stem cell donation was highly positive. Most participants strongly agreed to donate stem cells to a family member or anyone in need, 94.5% (n=378) and 62% (n=248), respectively. Conclusion Knowledge about stem cell donation among blood donors was scarce, while their willingness to donate after conversing was high. We highly recommend the initiation and establishment of educational programs to increase the knowledge of the public and, specifically, blood donors.
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Affiliation(s)
- Faris Alsalamah
- Department of Medicine, King Abdulaziz Medical City, Riyadh, SAU
| | | | - Rakan Alzahrani
- Department of Family Medicine, Family Medicine Academy, Eastern Health Cluster, Dammam, SAU
| | | | - Nasser Alkahtani
- Department of Emergency Medicine, King Abdulaziz Medical City, Riyadh, SAU
| | - Emad Masuadi
- Department of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Dunia Jawdat
- Department of Allergy and Immunology, Saudi Stem Cell Donor Registry, King Abdullah International Medical Research Center, Riyadh, SAU
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Hajjej A, Abdrakhmanova S, Turganbekova A, Almawi WY. HLA allele and haplotype frequencies in Kazakhstani Russians and their relationship with other populations. HLA 2023; 101:249-261. [PMID: 36502279 DOI: 10.1111/tan.14937] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 09/12/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022]
Abstract
HLA class I and class II genotypes from 947 Kazakhstani individuals of Russian origin were analyzed for investigating their most likely origin. The results were compared with similar data from other Russians (East and West), and also Worldwide populations, using standard genetic distances, neighbor-joining dendrograms, correspondence and haplotype analysis. Of the five HLA loci analyzed (HLA-A, HLA-C, HLA-B, HLA-DRB1, and HLA-DQB1) genotyped, 216 HLA alleles were identified. The most frequent alleles were A*02:01 (26.5%), B*07:02 (11.1%), C*04:01 (13.5%) and C*06:02 (12.1%), DRB1*07:01 (13.8%) and DRB1*15:01 (12.2%), and DQB1*03:01 (19.7%). Significant linkage disequilibrium was noted between all HLA pairs. DRB1*15:01 ~ DQB1*06:02 (10.5%), B*07:02 ~ C*07:02 (10.0%), B*07:02 ~ DRB1*15:01 (6.3%), and A*01:01 ~ B*08:01 (4.5%) were the most frequent two-locus haplotypes identified. Subsequent analyses showed that Kazakhstani Russians were closely related to West Russia-residing populations (Northwest Slavic, Vologda, Chelyabinsk, Moscow), East Europeans (Belarus Brest, Ukraine, Poland) and Scandinavians (Swedish, Finns), but distinct from East Russia-residing populations (Tuvians, Siberians from Chukotka, Kamchatka, and Ulchi) and East Mediterraneans (Levantines, Turks, North Macedonians, Albanians), and East Asians (Koreans, Japanese, Taiwanese, Mongolians). These results are in accordance with historical data indicating that the Russians of central Asia originate mainly from European Russia during the migratory flow of 18th and 19th centuries.
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Affiliation(s)
- Abdelhafidh Hajjej
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia
| | - Saniya Abdrakhmanova
- Research and Production Center of Transfusion, Kazakhstan Ministry of Health, Astana, Kazakhstan
| | - Aida Turganbekova
- Research and Production Center of Transfusion, Kazakhstan Ministry of Health, Astana, Kazakhstan
| | - Wassim Y Almawi
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana, Kazakhstan.,Faculty of Sciences, El-Manar University, Tunis, Tunisia
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Dashti M, Al-Matrouk A, Channanath A, Hebbar P, Al-Mulla F, Thanaraj TA. Distribution of HLA-B Alleles and Haplotypes in Qatari: Recommendation for Establishing Pharmacogenomic Markers Screening for Drug Hypersensitivity. Front Pharmacol 2022; 13:891838. [PMID: 36003520 PMCID: PMC9393242 DOI: 10.3389/fphar.2022.891838] [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: 03/08/2022] [Accepted: 06/14/2022] [Indexed: 11/18/2022] Open
Abstract
Human leukocyte antigen (HLA) proteins are present at the cellular surface of antigen-presenting cells and play a crucial role in the adaptive immune response. Class I genes, specifically certain HLA-B alleles, are associated with adverse drug reactions (ADRs) and are used as pharmacogenetic markers. Although ADRs are a common causes of hospitalization and mortality, the data on the prevalence of HLA-B pharmacogenetics markers in Arab countries are scarce. In this study, we investigated the frequencies of major HLA-B pharmacogenomics markers in the Qatari population. Next-generation sequencing data from 1,098 Qatari individuals were employed for HLA-B typing using HLA-HD version 1.4.0 and IPD-IMGT/HLA database. In addition, HLA-B pharmacogenetics markers were obtained from the HLA Adverse Drug Reaction Database. In total, 469 major HLA-B pharmacogenetic markers were identified, with HLA-B*51:01 being the most frequent pharmacogenetic marker (26.67%) in the Qatari population. Moreover, HLA-B*51:01 is associated with phenytoin- and clindamycin-induced ADRs. The second most frequent pharmacogenetic marker was the HLA-B*58:01 allele (6.56%), which is associated with allopurinol-induced ADRs. The third most frequent pharmacogenetic marker was the HLA-B*44:03 allele, which is associated with phenytoin-induced ADRs. The establishment of a pharmacogenetics screening program in Qatar for cost effective interventions aimed at preventing drug-induced hypersensitivity can be aided by the highly prevalent HLA-B pharmacogenetic markers detected here.
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Affiliation(s)
- Mohammed Dashti
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Abdullah Al-Matrouk
- Narcotic and Psychotropic Department, Ministry of Interior, Farwaniya, Kuwait
| | - Arshad Channanath
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Prashantha Hebbar
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Fahd Al-Mulla, ; Thangavel Alphonse Thanaraj,
| | - Thangavel Alphonse Thanaraj
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Fahd Al-Mulla, ; Thangavel Alphonse Thanaraj,
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Almawi WY, Hajjej A, Abdrakhmanova S, Turganbekova A. Distribution of HLA-A, -C, -B, -DRB1, and -DQB1 polymorphisms in the Korean minority in Kazakhstan, and relatedness to neighboring and distant populations. Gene 2022; 823:146386. [PMID: 35248657 DOI: 10.1016/j.gene.2022.146386] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/28/2022] [Accepted: 02/28/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Among the 125 ethnicities and linguistic groups in Kazakhstan, Koreans represent the eighth minority numerically. HLA class I and class II allele frequencies and extended haplotypes were studied for the first time and were compared to related and distant populations worldwide. METHODS HLA class I (A, B, C) and class II (DRB1, DQB1) profile was investigated in Kazakhstani Koreans, and were compared to other populations using standard genetic distances (SGD), neighbor-joining dendrograms, correspondence, and haplotype analysis. RESULTS One hundred and thirty-one HLA alleles were identified in Koreans living in Kazakhstan, with A*02:01 (23.08%), B*35:01 (8.24%), C*01:02 (15.38%), DRB1*08:03 (9.89%), and DQB1*03:01 (21.98%) being the most frequent alleles. A*03:01 ∼ B*07:02 (3.85%), B*08:01 ∼ DRB1*03:01 (3.85%), B*07:02 ∼ C*07:02 (7.14%), and DRB1*08:03 ∼ DQB1*06:01 (9.34%) were the most frequent two-locus haplotypes, while A*02:01 ∼ B*18:01 ∼ C*07:01 ∼ DRB1*11:04 ∼ DQB1*03:01 and A*33:03 ∼ B*44:03 ∼ C*14:03 ∼ DRB1*13:02 ∼ DQB1*06:04 (2.2% each) were the most frequent five-locus haplotypes. CONCLUSION Korean minority in Kazakhstan was closely related to East Asians, including Mongolians (SGD, 0.044), Tuvans (East Siberia; SGD, 0.081), Burayts (Siberia; SGD, 0.094), but distant from East Mediterranean such as Lebanese (SGD, 0.367), Greek (SGD, 0.377), and Saudi (SGD, 0.414), and most Siberians (SGD, 0.473-0.699). This relatedness could be mainly attributed to massive migration of Koryo Saram to Kazakhstan in the 20th century.
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Affiliation(s)
- Wassim Y Almawi
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana, Kazakhstan; Faculty of Sciences, El-Manar University, Tunis, Tunisia.
| | - Abdelhafidh Hajjej
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia
| | - Saniya Abdrakhmanova
- Research and Production Center of Transfusion, Kazakhstan Ministry of Health, Astana, Kazakhstan
| | - Aida Turganbekova
- Research and Production Center of Transfusion, Kazakhstan Ministry of Health, Astana, Kazakhstan
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Identification of Offspring Donors in Regions of High Consanguinity: New Prospects for Donor Procurement. Transplant Proc 2022; 54:593-594. [DOI: 10.1016/j.transproceed.2022.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/17/2022] [Indexed: 11/18/2022]
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Strategic priorities for hematopoietic stem cell transplantation in the EMRO region. Hematol Oncol Stem Cell Ther 2021; 16:162-169. [PMID: 34688625 DOI: 10.1016/j.hemonc.2021.09.006] [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: 07/15/2021] [Accepted: 09/23/2021] [Indexed: 11/22/2022] Open
Abstract
The World Health Organization-designated Eastern Mediterranean region (EMRO) consists of 22 countries in North Africa and Western Asia with a collective population of over 679 million. The area comprises some of the wealthiest countries per capita income and some of the poorest. The population structure is also unique and contrasts with western countries, with a much younger population. The region sits in the heart of the thalassemia belt. Many countries have a significant prevalence of sickle cell disease, and cancer is on the rise in the region. Therefore, the strategic priorities for the growth and development of hematopoietic stem cell transplantation (HSCT) differ from country to country based on resources, healthcare challenges, and prevalent infrastructure. Thirty-one reporting teams to the Eastern Mediterranean Blood and Marrow Transplantation Group have active HSCT programs in 12 countries; allogeneic transplants outnumber autologous transplants, and the proportion of allotransplants for non-malignant conditions is higher in the EMRO region than in Western Europe and North America. The vast majority (99%) of allotransplants are from matched related donors. Matched unrelated donors and other alternate donor transplants are underutilized. The chance of finding a matched related donor for allografts is higher, with a significant chance of finding matched donors among non-sibling related donors. Reasons for relatively lower rates of transplants compared with other countries are multifactorial. Capacity building, development of newer centers, innovative funding, and better utilization of information technology are required to make transplantation as an accessible modality to more patients. Cost-effectiveness and cost-containment, regulation, and ensuring quality will all be priorities in planning HSCT development in the region.
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Khdair SI, Jarrar W, Jarrar YB, Bataineh S, Al-Khaldi O. Association of HLA-DRB1 and -DQ Alleles and Haplotypes with Type 1 Diabetes in Jordanians. Endocr Metab Immune Disord Drug Targets 2021; 20:895-902. [PMID: 31742498 DOI: 10.2174/1871530319666191119114031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND The Human Leukocyte Antigen (HLA) class II genes, particularly the HLADR and -DQ loci, have been shown to play a crucial role in Type 1 Diabetes (T1D) development. OBJECTIVE This study is the first to examine the contribution of the HLA-DR/DQ alleles and haplotypes to T1D susceptibility in Jordanians. METHODS Polymerase chain reaction sequence-specific primers (PCR-SSP) were used to genotype 41 Jordanian healthy controls and 50 insulin-dependent diabetes mellitus (IDDM) patients. RESULTS The following alleles were found to be significant high risk alleles in T1D Jordanian patients: DRB1*04 (OR=3.95, p<0.001), DRB1*0301(OR=5.27, p<0.001), DQA1*0301 (OR=5.67, p<0.001), DQA1*0501(OR=3.18, p=0.002), DQB1*0201(OR=2.18, p=0.03), DQB1*0302 (OR=5.67, p<0.001). However, Jordanians harboring the DRB1*0701 (OR=0.37, p=0.01), DRB1*1101 (OR=0.2, p=0.01), DQA1*0505 (OR=0.31, p=0.02), DQA1*0103 (OR=0.33, p=0.04), DQA1*0201 (OR=0.45, p=0.04), DQB1*0301 (OR=0.23, p=0.001), DQB1*0501 (OR=0.18, p=0.009) alleles had a significantly lower risk of developing T1D. CONCLUSION A strong positive association of DRB1*04-DQA1*0301-DQBl*0302 (OR=5.67, p<0.001) and DRB1*0301-DQA1*0501-DQB1*0201 (OR=6.24, p<0.001) putative haplotypes with IDDM was evident in Jordanian IDDM patients whereas DRB1*1101-DQA1*0505- DQB1*0301 (OR=0.23, p=0.03) was shown to have a protective role against T1D in Jordanians. Our findings show that specific HLA class II alleles and haplotypes are significantly associated with susceptibility to T1D in Jordanians.
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Affiliation(s)
- Sawsan I Khdair
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Wassan Jarrar
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Yazun Bashir Jarrar
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
| | - Safa'a Bataineh
- Diabetes Center, King Abdullah University Hospital, P.O.Box 630001, Irbid 21110, Jordan
| | - Omar Al-Khaldi
- Diabetes Center, King Abdullah University Hospital, P.O.Box 630001, Irbid 21110, Jordan
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Farid E, Abdulla H, Medani S. HLA Matching Status Among Patients Requiring Hematopoietic Stem Cell Transplant: The Need for a National and Regional Stem Cell Bank. EXP CLIN TRANSPLANT 2021; 19:1082-1085. [PMID: 33641661 DOI: 10.6002/ect.2020.0354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Hematopoietic stem cell transplant is a strategic treatment for many malignant and nonmalignant blood diseases. Finding an HLA-matched donor is a requirement for a successful transplantation. The aim of the current study was to explore indications, demographics, and HLA patient-donor matching status among Bahraini patients requiring this transplant. MATERIALS AND METHODS Records of 100 patients who required hematopoietic stem cell transplant at the Salmaniya Medical Complex, Ministry of Health tertiary hospital in Bahrain were retrospectively studied. Data were analyzed and compared with data from similar studies. RESULTS For the 100 patients, 294 potential donors were HLA typed. Indications for transplant included malignant diseases (50%) and hereditary blood diseases (50%). For those in the 0- to 5-year age group, the main indication was acute lymphoblastic leukemia, whereas acute myeloid leukemia was the main indication for those who were >5 years old. Sex distribution showed that 55% of patients were males and 45% were females. With regard to age distribution, 22% of patients were less than 5 years old, 30% were 5 to 17 years old, and 48% were 18 years and older. Patient-donor HLA matching status was 50% HLA identical, 32% haploidentical, 15% more than haploidentical, and 3% less than haploidentical. The number of potential donors per patient ranged from 1 to 11 typed for each patient (average of 2.94 ± 1.86). CONCLUSIONS The rate of finding a family member as HLA-matched donor for hematopoietic stem cell transplant in our study on Bahraini patients was higher than reports in western countries yet close to other reports from countries with almost similar family sizes. We recommend forming a national Bahrain registry in addition to a regional Eastern Mediterranean stem cell bank to increase the success rate of finding an HLA-matched donor.
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Affiliation(s)
- Eman Farid
- From the Department of Pathology, Immunology Section, Salmaniya Medical Complex, Ministry of Health.,From the College of Medicine, Arabian Gulf University, Kingdom of Bahrain
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Flanley CM, Ramalho-Ortigao M, Coutinho-Abreu IV, Mukbel R, Hanafi HA, El-Hossary SS, Fawaz EY, Hoel DF, Bray AW, Stayback G, Shoue DA, Kamhawi S, Emrich S, McDowell MA. Phlebotomus papatasi sand fly predicted salivary protein diversity and immune response potential based on in silico prediction in Egypt and Jordan populations. PLoS Negl Trop Dis 2020; 14:e0007489. [PMID: 32658913 PMCID: PMC7377520 DOI: 10.1371/journal.pntd.0007489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/23/2020] [Accepted: 05/15/2020] [Indexed: 11/18/2022] Open
Abstract
Phlebotomus papatasi sand flies inject their hosts with a myriad of pharmacologically active salivary proteins to assist with blood feeding and to modulate host defenses. In addition, salivary proteins can influence cutaneous leishmaniasis disease outcome, highlighting the potential of the salivary components to be used as a vaccine. Variability of vaccine targets in natural populations influences antigen choice for vaccine development. Therefore, the objective of this study was to investigate the variability in the predicted protein sequences of nine of the most abundantly expressed salivary proteins from field populations, testing the hypothesis that salivary proteins appropriate to target for vaccination strategies will be possible. PpSP12, PpSP14, PpSP28, PpSP29, PpSP30, PpSP32, PpSP36, PpSP42, and PpSP44 mature cDNAs from field collected P. papatasi from three distinct ecotopes in the Middle East and North Africa were amplified, sequenced, and in silico translated to assess the predicted amino acid variability. Two of the predicted sequences, PpSP12 and PpSP14, demonstrated low genetic variability across the three geographic isolated sand fly populations, with conserved multiple predicted MHCII epitope binding sites suggestive of their potential application in vaccination approaches. The other seven predicted salivary proteins revealed greater allelic variation across the same sand fly populations, possibly precluding their use as vaccine targets.
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Affiliation(s)
- Catherine M. Flanley
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Marcelo Ramalho-Ortigao
- Department of Preventive Medicine and Biostatistics, F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
| | - Iliano V. Coutinho-Abreu
- Laboratory of Malaria and Vector Research, NIAID-NIH, Rockville, Maryland, United States of America
| | - Rami Mukbel
- Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Hanafi A. Hanafi
- Vector Biology Research Program, U.S. Naval Medical Research Unit No. 3, Cairo, Egypt
| | - Shabaan S. El-Hossary
- Vector Biology Research Program, U.S. Naval Medical Research Unit No. 3, Cairo, Egypt
| | - Emadeldin Y. Fawaz
- Vector Biology Research Program, U.S. Naval Medical Research Unit No. 3, Cairo, Egypt
| | - David F. Hoel
- Lee County Mosquito Control District, Lehigh Acres, Florida, United States of America
| | - Alexander W. Bray
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Gwen Stayback
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Douglas A. Shoue
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Shaden Kamhawi
- Laboratory of Malaria and Vector Research, NIAID-NIH, Rockville, Maryland, United States of America
| | - Scott Emrich
- Min H. Kao Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Mary Ann McDowell
- Department of Biological Sciences, Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
- * E-mail:
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12
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Hajjej A, Saldhana FL, Dajani R, Almawi WY. HLA-A, -B, -C, -DRB1 and -DQB1 allele and haplotype frequencies and phylogenetic analysis of Bahraini population. Gene 2020; 735:144399. [PMID: 32001374 DOI: 10.1016/j.gene.2020.144399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/21/2019] [Accepted: 01/23/2020] [Indexed: 11/30/2022]
Abstract
The origin of Arab-speaking population is classified according to their geographical location, ethnic background, and historical influx of nearby and distant populations. Data on HLA class I and class II loci in (Arabian Peninsula) Bahraini population are lacking. We analyzed HLA genetic profile of Bahrainis with neighboring communities, and with Levantines, North Africans, Sub-Saharans, Europeans, and Asians, using genetic distances, neighbor-joining dendrograms, correspondence and haplotype analysis. HLA class I and class II genotyping were done by high resolution PCR-SSP in 175 Bahraini subjects. In total, 19 HLA-A, 33 HLA-B, 15 HLA-C, 14 DRB1 and 7 DQB1 alleles were identified. The most common class I alleles were A*02:01:01 (18.3%), A*01:01:01(15.4%), B*35:01:02 (12.9%), C*12:01:01 (15.1%), and C*04:01:01 (14.9%), while DRB1*03:01:01 (18.0%), DQB1*02:01:01 (29.1%), and DQB1*05:01:01 (24.9%) were the most frequent class II alleles. Significant linkage disequilibrium was seen between all HLA loci pairs. DRB1*03:01:01-DQB1*02:01:01 (15.18%) was the most frequent two-locus haplotype. Significant negative Fnd values were observed, indicating balancing selection at studied loci. Bahrainis appear to be related to Western Mediterranean (North Africans, Iberians and French), but relatively distinct from Levantines (Palestinians, Lebanese, and Jordanians) and Sub-Saharans. This indicates limited genetic contribution of Levantine Arabs and Sub-Saharans to the Bahraini gene pool.
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Affiliation(s)
- Abdelhafidh Hajjej
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia
| | - F Lisa Saldhana
- Faculte' des Sciences de Tunis, Universite' de Tunis El Manar, Tunis, Tunisia
| | - Rana Dajani
- Department of Biology, Hashemite University, Zarqa, Jordan
| | - Wassim Y Almawi
- Faculte' des Sciences de Tunis, Universite' de Tunis El Manar, Tunis, Tunisia; School of Medicine, Nazarbayev University, Astana, Kazakhstan.
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13
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Watanabe M, Kanda J, Kojima H, Ikeda N, Fuji S, Kanda Y, Saji H, Tanaka H. Wide availability of HLA-matched or a few loci-mismatched donors in the graft-vs-host direction among nonsibling first-degree relatives. HLA 2020; 95:543-554. [PMID: 32170853 DOI: 10.1111/tan.13864] [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: 11/17/2019] [Revised: 02/06/2020] [Accepted: 03/11/2020] [Indexed: 01/02/2023]
Abstract
Although outcomes of hematopoietic stem cell transplantation from alternative donors have been improved, it has not yet challenged the precedence of HLA-matched or a few loci-mismatched donors. Because the availabilities of these donors among nonsibling relatives have been scarcely discussed, we analyzed them using a large Japanese dataset of HLA typing. Data set included HLA data from 2838 patients and their relatives, distributed in all parts of Japan. Antigen mismatches at the HLA-A, -B, -DR loci and allele mismatches at the HLA-A, -B, -C, -DRB1 loci were examined. The availabilities of 0 to 1/6 antigen-mismatched donors among one parent-candidate and one sibling-candidate were 24.3% and 33.9%, and those of 0 to 2/8 allele-mismatched donors were 18.6% and 32.1%, respectively. Additional HLA-C antigen mismatches (18.1% vs 0.0%) along with the possession of 1 to 3/8 allele mismatches (31.3% vs 3.0%) were more frequently observed in parent-candidates than in sibling-candidate. Most multiple allele-mismatched pairs had HLA-B allele mismatches. In conclusion, expanding donor searches to include nonsibling relatives could widen the availability of conventional relative donors with 0 to 1/6 antigen mismatches or 0 to 2/8 allele mismatch to 20% to 30%. High-resolution typing including HLA-C locus examination should be performed, because additional mismatches at HLA-C loci along with multiple allele mismatches were often observed, especially among nonsibling pairs.
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Affiliation(s)
- Mizuki Watanabe
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junya Kanda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Saitama Medical Center, Division of Hematology, Jichi Medical University, Saitama, Japan
| | | | | | - Shigeo Fuji
- Department of Hematology, Osaka International Cancer Center, Osaka, Japan
| | - Yoshinobu Kanda
- Saitama Medical Center, Division of Hematology, Jichi Medical University, Saitama, Japan
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Ameen R, Al Shemmari SH, Marsh SGE. HLA Haplotype Frequencies and Genetic Profiles of the Kuwaiti Population. Med Princ Pract 2020; 29:39-45. [PMID: 30870850 PMCID: PMC7024892 DOI: 10.1159/000499593] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 03/14/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this study was to assess the HLA haplotype frequencies and genetic profiles of the Kuwaiti population. MATERIALS AND METHODS Whole venous blood was obtained from 595 healthy, unrelated Kuwaiti volunteers. The study population was genotyped for HLA class I (HLA-A, HLA-B, and HLA-C) and class II (HLA-DRB1 and HLA-DQB1) loci using sequence-specific oligonucleotide (SSO) probe-based hybridization and high-resolution HLA genotyping. Haplotype frequencies were estimated using an implementation of the expectation maximization algorithm that resolves both phase and allelic ambiguity. The Kuwaiti population was compared with other populations from the US National Marrow Donor Program (NMDP), by running a principal component analysis (PCA) on the relevant haplotype frequencies. RESULTS The most common HLA class I alleles in Kuwait were HLA-A*02:01g, HLA-C*06:02g, and HLA-B*50:01g with frequencies of 16, 14, and 12%, respectively. The most common HLA class II alleles in Kuwait were HLA-DQB1*02:01g and HLA-DRB1*07:01 with frequencies of 29.7 and 16.5%, respectively. The most common Kuwaiti haplotype observed was HLA-A*02:01g∼HLA-C*06:02g∼HLA-B*50:01g∼HLA-DRB1*07:01∼HLA-DQB1*02:01g at a frequency of 2.3%. The PCA demonstrated close genetic proximity of the Kuwaiti population with Middle Eastern, Southeast Asian, and North African populations in the NMDP. CONCLUSION Identifying the haplotype diversity in the Kuwaiti population will contribute to the selection of an HLA-match for HSCT, disease associations, pharmacogenomics, and knowledge of pop-ulation HLA diversity.
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Affiliation(s)
- Reem Ameen
- Medical Laboratory Department, Health Sciences Center, Kuwait University, Kuwait City, Kuwait,
| | - Salem H Al Shemmari
- Medicine Department, Health Sciences Center, Kuwait University, Kuwait City, Kuwait
| | - Steven G E Marsh
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, London, United Kingdom
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15
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Messoussi M, Hajjej A, Ammar Elgaaied AB, Almawi WY, Arnaiz-Villena A, Hmida S, Fadhlaoui-Zid K. HLA Class II Allele and Haplotype Diversity in Libyans and Their Genetic Relationships with Other Populations. Immunol Invest 2019; 48:875-892. [PMID: 31161824 DOI: 10.1080/08820139.2019.1614950] [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] [Indexed: 12/25/2022]
Abstract
Background: Libya witnessed the succession of many civilizations and ethnic groups throughout history, thereby questioning the origin of present-day Libyans. Indeed, they were considered Africans given the geographical position of the country, Arabs at the cultural level, and Berbers because of the notable presence of Berber tribes. Genetic anthropology studies investigating the origin of Libyans were rarely reported, and thus little was known about the population structure of current Libyans, particularly at autosomic markers level. Methods: We examined HLA class II (DRB1, DQB1) gene profiles of 101 unrelated Libyans, and compared them with Arab-speaking communities and with Sub-Saharan and Mediterranean populations using Neighbour-Joining dendrograms, genetic distances, correspondence, and haplotype analysis. Results: Of the 42 DRB1 alleles identified, DRB1*07:01 (14.36%), DRB1*03:01 (12.38%) were the most frequent, while DQB1*02:01 (24.17%), DQB1*02:02 (13.86%), and DQB1*03:01 (12.38%) were the most frequent of the 17 DQB1 alleles detected. DRB1*03:01-DQB1*02:01 (6.93%), DRB1*07:01-DQB1*02:02 (4.45%), and DRB1*04:03-DQB1*03:02 (3.46%) were the most frequent DRB1-DQB1 haplotypes. Conclusion: Libyans appear to be closely related to North Africans, Saudis, and Iberians, but distinct from Levantine Arabs, East Mediterraneans, and Sub-Saharan Africans. This indicates limited genetic contribution of Levantine Arabs and Sub-Saharans on the makeup of Libyan gene pool. Our study confirmed genetic heterogeneity among Arab populations, with three identified groups. The first comprises North Africans, Saudis, and Kuwaitis who were related to Iberians and West Mediterraneans, while the second consists of Levantine Arabs who were close to East Mediterraneans, and the third contained Sudanese and Comorians, with a close relatedness to Sub-Saharans.
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Affiliation(s)
- Monia Messoussi
- Laboratory of Genetics, Immunology, and Human Pathologies, Faculty of Science of Tunis, University Tunis El Manar , Tunis , Tunisia
| | - Abdelhafidh Hajjej
- Department of Immunogenetics, National Blood Transfusion Center , Tunis , Tunisia
| | - Amel Ben Ammar Elgaaied
- Laboratory of Genetics, Immunology, and Human Pathologies, Faculty of Science of Tunis, University Tunis El Manar , Tunis , Tunisia
| | - Wassim Y Almawi
- School of Medicine, Nazarbayev University , Astana , Kazakhstan.,Department of Biological Sciences, Faculty of Sciences, El-Manar University , Tunis , Tunisia
| | - Antonio Arnaiz-Villena
- Department of Immunology, University Complutense, School of Medicine, Madrid Regional Blood Center , Madrid , Spain
| | - Slama Hmida
- Department of Immunogenetics, National Blood Transfusion Center , Tunis , Tunisia
| | - Karima Fadhlaoui-Zid
- Laboratory of Genetics, Immunology, and Human Pathologies, Faculty of Science of Tunis, University Tunis El Manar , Tunis , Tunisia.,Department of Biology, College of Science, Taibah University , Al Madinah Al Monawarah , Saudi Arabia.,Higher Institute of Biotechnology of Beja, University of Jendouba , Beja , Tunisia
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16
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Matsumoto MM, Dajani R, Matthews KRW. Public-private divide: cultural and social factors in women's attitudes toward cord blood banking in Jordan. Transfusion 2018; 58:1958-1963. [PMID: 30171824 DOI: 10.1111/trf.14787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 04/15/2018] [Accepted: 04/25/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Private cord blood (CB) banking is more widespread than public banking in Jordan, contributing to misinformation and unequal access to resources. This study elucidates unique perspectives of women in Jordan toward CB banking for the purpose of national and international policymaking, ethics, and education. STUDY DESIGN AND METHODS The authors developed and disseminated a questionnaire to women in maternity outpatient clinic waiting rooms in five different hospitals in Jordan. A total of 899 surveys were collected with 100% return rate: 464 surveys from private hospitals and 435 from public ones. Data were reported as frequency distributions, chi-square and Fisher's exact test statistics, and odds ratios. RESULTS Patient demographics, self-reported knowledge, and opinions about CB banking differed significantly between women at private versus public hospitals. Women at private hospitals had higher levels of awareness and communication with a health care professional about CB banking, which is associated with more positive viewpoints on CB banking and a self-reported higher likelihood of participating in CB banking in the future. Furthermore, religious approval and father-only consent for CB banking must be considered as unique factors in CB storage in Jordan. CONCLUSION This analysis aids in identifying discrepancies in knowledge, resources, and communication, as well as unique population preferences. Comprehensive culturally attuned educational campaigns for patients and physicians should be a national priority to ensure ethical practice, informed decision making, and sustainable programs before the opening of Jordan's first public CB bank in 2017.
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Affiliation(s)
- Monica M Matsumoto
- Pritzker School of Medicine, University of Chicago Medicine, Chicago, Illinois
- Center for Health and Bioscience, Baker Institute for Public Policy, Rice University, Houston, Texas
| | - Rana Dajani
- Department of Biology and Biotechnology, Hashemite University, Zarqa, Jordan
| | - Kirstin R W Matthews
- Center for Health and Bioscience, Baker Institute for Public Policy, Rice University, Houston, Texas
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17
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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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18
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Ikhtiar AM, Jazairi B, Khansa I, Othman A. HLA class I alleles frequencies in the Syrian population. BMC Res Notes 2018; 11:324. [PMID: 29784010 PMCID: PMC5963146 DOI: 10.1186/s13104-018-3427-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 05/10/2018] [Indexed: 11/27/2022] Open
Abstract
Objective The HLA system is known to be the most polymorphic genetic loci in humans. Distribution and frequencies of HLA alleles are highly variable among different human ethnic groups. The HLA system has an important role in disease susceptibility and resistance, especially in autoimmune diseases and cancer. This study is the first report about HLA genetic variability and haplotypes among Syrians. Frequency of the HLA class I (A, B and C) alleles was determined in 105 healthy unrelated Syrian individuals from different regions in Syria. We also studied the associated haplotypes frequencies. Alleles frequencies were compared with those reported for other populations. Results Fifty-eight HLA class I alleles were observed in Syrians including 15 for HLA-A, 28 for HLA-B and 15 for HLA-C. We observed 37 HLA-A/C haplotypes, 32 B/C, and 31 A/B haplotypes. The most frequent haplotypes were A*01/C*04, A*02/C*07, A*02/B*35, and B*35/C*04. In conclusions, our preliminary study suggests a high variability in HLA class I alleles in the Syrian population. This study also gives a general reference database about the genetic pool distribution of HLA class I alleles among Syrians and can be consulted for HLA related diseases.
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Affiliation(s)
- Adnan M Ikhtiar
- FCM Lab., Molecular Biology & Biotechnology Department, Atomic Energy Commission of Syria (AECS), P.O. Box 6091, Damascus, Syrian Arab Republic.
| | - Batoul Jazairi
- FCM Lab., Molecular Biology & Biotechnology Department, Atomic Energy Commission of Syria (AECS), P.O. Box 6091, Damascus, Syrian Arab Republic
| | - Issam Khansa
- FCM Lab., Molecular Biology & Biotechnology Department, Atomic Energy Commission of Syria (AECS), P.O. Box 6091, Damascus, Syrian Arab Republic
| | - Ahmad Othman
- FCM Lab., Molecular Biology & Biotechnology Department, Atomic Energy Commission of Syria (AECS), P.O. Box 6091, Damascus, Syrian Arab Republic.,Department of Anatomy, Histology and Embryology, Medicine College, Damascus University, Damascus, Syria
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Kasar M, Yeral M, Solmaz S, Büyükkurt N, Asma S, Gereklioğlu Ç, Boğa C, Özdoğu H, Baştürk B. Frequency of Finding Family Donors: A Single Center Experience. EXP CLIN TRANSPLANT 2018. [PMID: 29527991 DOI: 10.6002/ect.tond-tdtd2017.o20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Allogeneic hematopoietic stem cell transplant is a curative treatment option for many hematologic diseases. The existence of a fully compatible donor for recipients is the first condition for minimized transplant-related mortality and morbidity. The best donor for hematopoietic stem cell transplant is an HLA-matched sibling donor. The possibility of finding an HLA-matched sibling is less than 30% worldwide. Hematopoietic stem cell transplant is needed for an increasing number of patients every year, but the ability to find a fully compatible donor has limited its use. MATERIALS AND METHODS From August 2012 to May 2017, we screened 412 adult patients who required AHSCT and their families for HLA tissue groups who were seen at our center (Baskent University Adana Dr. Turgut Noyan Research and Medical Center Hematology Unit). To screen tissue groups at our center, we perform lowresolution typing for HLA-A, -B, -C, -DRB1, and -DQB. If an HLA genotype cannot be identified, verification typing is done using highresolution testing. RESULTS We found matched family donors in 227 (55%) of 412 patients screened at our center. The ratio of HLAmatched related donors was 83% for 279 patients who received allogeneic stem cell transplant. CONCLUSIONS The likelihood of finding eligible unrelated donors has been gradually increasing, in part due to the development of the National Bone Marrow Bank. However, a careful screening for related donors is still important. Our findings indicate the importance of careful examination of family genealogy and of careful family screening in our region.
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Affiliation(s)
- Mutlu Kasar
- From the Department of Hematology, Baskent University, Dr. Turgut Noyan Teaching and Medical Research Center, Adana, Turkey
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20
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Hajjej A, Almawi WY, Arnaiz-Villena A, Hattab L, Hmida S. The genetic heterogeneity of Arab populations as inferred from HLA genes. PLoS One 2018. [PMID: 29522542 PMCID: PMC5844529 DOI: 10.1371/journal.pone.0192269] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This is the first genetic anthropology study on Arabs in MENA (Middle East and North Africa) region. The present meta-analysis included 100 populations from 36 Arab and non-Arab communities, comprising 16,006 individuals, and evaluates the genetic profile of Arabs using HLA class I (A, B) and class II (DRB1, DQB1) genes. A total of 56 Arab populations comprising 10,283 individuals were selected from several databases, and were compared with 44 Mediterranean, Asian, and sub-Saharan populations. The most frequent alleles in Arabs are A*01, A*02, B*35, B*51, DRB1*03:01, DRB1*07:01, DQB1*02:01, and DQB1*03:01, while DRB1*03:01-DQB1*02:01 and DRB1*07:01-DQB1*02:02 are the most frequent class II haplotypes. Dendrograms, correspondence analyses, genetic distances, and haplotype analysis indicate that Arabs could be stratified into four groups. The first consists of North Africans (Algerians, Tunisians, Moroccans, and Libyans), and the first Arabian Peninsula cluster (Saudis, Kuwaitis, and Yemenis), who appear to be related to Western Mediterraneans, including Iberians; this might be explained for a massive migration into these areas when Sahara underwent a relatively rapid desiccation, starting about 10,000 years BC. The second includes Levantine Arabs (Palestinians, Jordanians, Lebanese, and Syrians), along with Iraqi and Egyptians, who are related to Eastern Mediterraneans. The third comprises Sudanese and Comorians, who tend to cluster with Sub-Saharans. The fourth comprises the second Arabian Peninsula cluster, made up of Omanis, Emiratis, and Bahrainis. It is noteworthy that the two large minorities (Berbers and Kurds) are indigenous (autochthonous), and are not genetically different from "host" and neighboring populations. In conclusion, this study confirmed high genetic heterogeneity among present-day Arabs, and especially those of the Arabian Peninsula.
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Affiliation(s)
- Abdelhafidh Hajjej
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia
- * E-mail:
| | - Wassim Y. Almawi
- Department of Medicine, Harvard Medical School, Boston, MA, United States of America
| | - Antonio Arnaiz-Villena
- Department of Immunology, University Complutense, School of Medicine, Madrid Regional Blood Center, Madrid, Spain
| | - Lasmar Hattab
- Department of Medical Analysis, Hospital of Gabes (Ghannouch), Gabes, Tunisia
| | - Slama Hmida
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia
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21
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The Case for High Resolution Extended 6-Loci HLA Typing for Identifying Related Donors in the Indian Subcontinent. Biol Blood Marrow Transplant 2017; 23:1592-1596. [DOI: 10.1016/j.bbmt.2017.05.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/30/2017] [Indexed: 01/25/2023]
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22
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Rojo-Medina J, Bello-López JM. HLA frequency in candidates to transplant without compatible cord blood at the National Center of Blood Transfusion (Mexico). Transfus Apher Sci 2017; 56:571-575. [PMID: 28774824 DOI: 10.1016/j.transci.2017.07.017] [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: 03/27/2017] [Revised: 06/17/2017] [Accepted: 07/12/2017] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Umbilical Cord Blood Units (UCBU) for transplantation, are a therapeutic possibility for patients with a wide range of oncohaematological diseases and other immunologic disorders. The search of compatible donors for bone marrow transplantation is increasingly difficult for patients of mixed ethnicity. The aim of this work was determine the HLA frequency of candidates for transplantation without compatible UCBU at the National Center of from Blood Transfusion (NCBT) - Mexico. MATERIAL AND METHODS A retrospective analysis of candidates to transplant without compatible UCBU was performed in the archives from 2003 to 2016 at the NCBT. HLA class I and II genotyping of candidates was performed by medium resolution methods: Sequence Specific Primer and/or Specific Sequence Oligonucleotide. HLA frequencies were obtained by including individuals without any particular bias to a phenotype and strict statistical and genetic analysis of populations were done. The database in www.allelefrequencies.net was used in order to identify the ethnic origin of the most frequent alleles. RESULTS Three hundred and sixty-four candidates without compatible UCBU for transplantation were identified. The most frequent haplotype HLA I and II were: HLA-A*02/02, 02/24, 24/24, 02/68, 01/24 and 24/68; HLA-B*39/39, 35/51, 44/44, 44/40, 35/40 and 35/35; HLA-DRB1*04/04, 13/07, 04/13, 13/13 and 03/11. The ethnic origins of the analyzed data were represented in most cases by Amerindians, Caucasics, Orientals, Asians, Arabs and Africans. CONCLUSION This work shows the existence of a broad genetic diversity of candidates for transplantation with UCBU, making it difficult to find compatible units considering donors only from the capital.
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Affiliation(s)
- Julieta Rojo-Medina
- Centro Nacional de la Transfusión Sanguínea, Av. Othón de Mendizábal 195, Zacatenco, Gustavo A. Madero, 07360 México City, Mexico
| | - Juan Manuel Bello-López
- Centro Nacional de la Transfusión Sanguínea, Av. Othón de Mendizábal 195, Zacatenco, Gustavo A. Madero, 07360 México City, Mexico; Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Zacatenco, Gustavo A. Madero, 07360 México City, Mexico.
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Jindal AK, Pilania RK, Rawat A, Singh S. Primary Immunodeficiency Disorders in India-A Situational Review. Front Immunol 2017; 8:714. [PMID: 28674536 PMCID: PMC5474457 DOI: 10.3389/fimmu.2017.00714] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 06/02/2017] [Indexed: 01/02/2023] Open
Abstract
Primary immunodeficiency disorders (PIDs) are a group of genetic defects characterized by abnormalities of one or more components of the immune system. While there have been several advances in diagnosis, management, and research in the field of PIDs, they continue to remain underdiagnosed, especially in the less affluent countries. Despite several limitations and challenges, India has advanced significantly in the field of PIDs in the last few years. In this review, we highlight the progress in the field of PIDs in India over the last 25 years, the difficulties faced by clinicians across the country, the current state of PIDs in India and the future prospects.
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Affiliation(s)
- Ankur Kumar Jindal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rakesh Kumar Pilania
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Kaya Z, Gönen S, Çalışkan B, Kemer Z, Ünal AB, Değirmenci E. HLA Genotypes in Turkish Hematopoietic Cell Recipients and Likelihood of Finding a Matched Donor Through Family Searches. EXP CLIN TRANSPLANT 2017; 17:813-818. [PMID: 28350290 DOI: 10.6002/ect.2016.0135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Allogeneic hematopoietic stem cell transplant is a life-saving treatment, but donor numbers in Turkey do not meet the increasing demand for this procedure. Here, our objectives were (1) to assess the frequency of HLA-matched related donors in the Turkish population and (2) to identify the HLA antigens and haplotypes that are most frequent in Turkey. MATERIALS AND METHODS The HLA genotypes of 841 consecutive recipients and 3071 family members were retrospectively reviewed. RESULTS Matched related donors were identified for 368/841 recipients (44%). Extended family donor searches were performed for 111/181 pediatric recipients (61%), with nonsibling matched related donors found for 23 patients (21%). Matched related donors were found for a significantly higher proportion of pediatric patients (52%) than adult patients (41%) (odds ratio of 2.5; 95% confidence interval, 1.9-4.1; P = .02). The percentage of pediatric versus adult patients with 3 or more siblings was 13% versus 46% (odds ratio of 5.6; 95% confidence interval, 3.6-8.5; P = .001). The most frequent HLA class I antigens at each locus were HLA-A*02 (20.2%), HLA-B*35 (19.5%), and HLA-C*07 (19.8%). The most frequent HLA class II antigens at each locus were HLA-DRB1*11 (21.6%) and HLA-DQB1*03 (40.2%). The most common 3-locus haplotypes were HLA-A*24 B*35 DRB1*11 (F:0.020) and HLA-A*01 B*08 DRB1*03 (F:0.015). When adult and pediatric groups were combined, the most common locus haplotypes were found in 43/345 sibling donors (12%) and in 7/23 nonsibling pediatric donors (30%) (odds ratio of 2.7; 95% confidence interval, 1.2-6.4; P = .02). CONCLUSIONS The results indicate that, in Turkey, it can be beneficial to revise donor search algorithms to include an extended family donor search before an unrelated donor search. This type of search can be effective because of the HLA haplotype diversity in Turkey, the frequency of consanguinity, and the country's limited donor pool.
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Affiliation(s)
- Zühre Kaya
- Department of Pediatric Hematology, Gazi University Medical School, Ankara, Turkey
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25
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Ali MA, Elshobari MM, Salah T, Kandeel AR, Sultan AM, Elghawalby AN, Shehta A, Elsayed U, Fathy O, Yassen A, Wahab MA. Impact of donor-recipient genetic relationship on outcome of living donor liver transplantation. Liver Transpl 2017; 23:43-49. [PMID: 27516392 DOI: 10.1002/lt.24599] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 07/28/2016] [Indexed: 02/06/2023]
Abstract
Living donor liver transplantation (LDLT) is a valuable option for expanding the donor pool, especially in localities where deceased organ harvesting is not allowed. In addition, rejection rates were found to be lower in LDLT, which is attributed to the fact that LDLT is usually performed between relatives. However, the impact of genetic relation on the outcome of LDLT has not been studied. In this study, we examined the difference in rejection rates between LDLT from genetically related (GR) donors and genetically unrelated (GUR) donors. All cases that underwent LDLT during the period from May 2004 until May 2014 were included in the study. The study group was divided into 2 groups: LDLT from GR donors and LDLT from GUR donors. A total of 308 patients were included in the study: 212 from GR donors and 96 from GUR donors. Human leukocyte antigen (HLA) typing was not included in the workup for matching donors and recipients. GUR donors were wives (36; 11.7%), sons-in-law (7; 2.3%), brothers-in-law (12; 3.9%), sisters-in-law (1; 0.3%), and unrelated (38; 12.3%). The incidence of acute rejection in the GR group was 17.4% and 26.3% in the GUR group (P value = 0.07). However, there was a significant difference in the incidence of chronic rejection (CR) between the 2 groups: 7% in GR group and 14.7% in the GUR group (P value = 0.03). In terms of overall survival, there was no significant difference between both groups. LDLT from the GUR donors is not associated with a higher incidence of acute cellular rejection. However, CR was significantly lower when grafts were procured from GR donors. HLA matching may be recommended before LDLT from GUR donors. Liver Transplantation 23:43-49 2017 AASLD.
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Affiliation(s)
- Mahmoud Abdelwahab Ali
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Mohamed Morsi Elshobari
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Tarek Salah
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Al-Refaey Kandeel
- Anesthesia and Intensive Care Department, Mansoura University, Mansoura City, Egypt
| | - Ahmad Mohammad Sultan
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Ahmad Nabieh Elghawalby
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Ahmed Shehta
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Usama Elsayed
- Anesthesia and Intensive Care Department, Mansoura University, Mansoura City, Egypt
| | - Omar Fathy
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
| | - Amr Yassen
- Anesthesia and Intensive Care Department, Mansoura University, Mansoura City, Egypt
| | - Mohamed Abdel Wahab
- Liver Transplantation Unit, Gastroenterology Surgical Center, Mansoura University, Mansoura City, Egypt
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26
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Hussein AA, Hamidieh AA, Elhaddad A, Ramzi M, Othman TB, Hussain F, Dennison D, Ahmed P, Abboud M, Al-Ahmari A, Wahadneh A, Fathy J, Bekadja MA, Al-Kindi S, Benchekroun S, Ibrahim A, Behfar M, Samra M, Ladeb S, Adil S, El-Solh H, Ayas M, Aljurf M, Ghavamzadeh A, Al-Seraihy A. First report of pediatric hematopoietic stem cell transplantation activities in the eastern mediterranean region from 1984 to 2011: on behalf of the pediatric cancer working committee of the eastern mediterranean blood and marrow transplantation group. Bone Marrow Transplant 2016; 52:120-125. [PMID: 27618684 DOI: 10.1038/bmt.2016.209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 07/02/2016] [Accepted: 07/11/2016] [Indexed: 12/18/2022]
Abstract
To describe the hematopoietic stem cell transplantation (HSCT) activities for children in the Eastern Mediterranean (EM) region, data on transplants performed for children less than 18 years of age between 1984 and 2011 in eight EM countries (Egypt, Iran, Jordan, Lebanon, Oman, Pakistan, Saudi Arabia and Tunisia) were collected. A total of 5187 transplants were performed, of which 4513 (87%) were allogeneic and 674 (13%) were autologous. Overall, the indications for transplantation were malignant diseases in 1736 (38.5%) and non-malignant in 2777 (61.5%) patients. A myeloablative conditioning regimen was used in 88% of the allografts. Bone marrow (BM) was the most frequent source of stem cells (56.2%), although an increasing use of PBSC was observed in the last decade. The stem cell source of autologous HSCT has shifted over time from BM to PBSC, and 80.9% of autologous HSCTs were from PBSCs. The donors for allogeneic transplants were matched-related in 94.5% of the cases, and unrelated transplants, mainly cord blood (99%) in 239 (5.5%) cases. This is the first report to describe the pediatric HSCT activities in EM countries. Non-malignant disorders are the main indication for allogeneic transplantation. Frequency of alternate donor transplantation is low.
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Affiliation(s)
- A A Hussein
- Bone Marrow and Stem Cell Transplantation Program, King Hussein Cancer Center, Amman, Jordan
| | - A A Hamidieh
- Hematology, Oncology and SCT Research Center, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - A Elhaddad
- National Cancer Institute, Cairo University, Cairo, Egypt
| | - M Ramzi
- Shiraz University of Medical Science, Shiraz, Islamic Republic of Iran
| | - T B Othman
- Center National de Greffe de Moelle Osseuse de Tunis, Tunis, Tunisia
| | - F Hussain
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - D Dennison
- Sultan Qaboos University Hospital, Muscat, Oman
| | - P Ahmed
- Armed Forces Bone Marrow Transplant Center, Rawalpindi, Pakistan
| | - M Abboud
- American University Beirut Medical Center, Beirut, Lebanon
| | - A Al-Ahmari
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - A Wahadneh
- Queen Rania Al-Abdullah Children Hospital-King Hussein Medical Center, Amman, Jordan
| | - J Fathy
- National Cancer Institute, Cairo University, Cairo, Egypt
| | - M-A Bekadja
- Oran University-1st November Hospital, Oran, Algeria
| | - S Al-Kindi
- Sultan Qaboos University Hospital, Muscat, Oman
| | - S Benchekroun
- Service d'Hematologie et Oncologie Pediatrique, Casablanca, Morocco
| | - A Ibrahim
- Makassed General Hospital, Beirut, Lebanon
| | - M Behfar
- Hematology, Oncology and SCT Research Center, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M Samra
- National Cancer Institute, Cairo University, Cairo, Egypt
| | - S Ladeb
- Center National de Greffe de Moelle Osseuse de Tunis, Tunis, Tunisia
| | - S Adil
- Aga Khan University Hospital, Karachi, Pakistan
| | - H El-Solh
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - M Ayas
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - M Aljurf
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - A Ghavamzadeh
- Hematology, Oncology and SCT Research Center, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - A Al-Seraihy
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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Matsumoto MM, Dajani R, Khader Y, Matthews KRW. Assessing women's knowledge and attitudes toward cord blood banking: policy and ethical implications for Jordan. Transfusion 2016; 56:2052-61. [PMID: 27197803 DOI: 10.1111/trf.13650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/18/2016] [Accepted: 04/07/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Despite the global expansion of umbilical cord blood (CB) banking, little is known about public opinion and awareness, especially among Arab Muslim populations. CB banking raises policy questions about funding sustainability and quality standards, as well as ethical debates about profitability, informed consent, and medical justification. This study is the first of its kind in the Arab world, and Jordan has a unique, understudied, yet highly relevant setting, especially as a regional medical hub with advanced medical and health policy infrastructures. In addition, the first private and public CB banks are expected to open in 2016. STUDY DESIGN AND METHODS The authors developed and administered, over a 5-month period, an anonymous survey to investigate public opinion and knowledge about CB banking in Jordan. The survey was administered to women in maternity outpatient clinic waiting rooms at five different hospitals. RESULTS More than 75% of respondents indicated they knew nothing about CB banking in Jordan, and more than 50% had never heard of CB banking before. However, overall public opinion about CB storage is positive. Important factors related to public opinion were also identified, demonstrating that most women want more information on CB banking, especially from their obstetrician. CONCLUSION This widespread lack of awareness is likely contributing to misinformation, lack of knowledge, and unfavorable perspectives toward CB donation and research. The results have important implications for the development of national and regional policies and educational campaigns on CB banking targeting both physicians and patients.
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Affiliation(s)
- Monica M Matsumoto
- Baker Institute for Public Policy, Rice University, Houston, Texas.,Cell Therapy Center, University of Jordan, Amman, Jordan.,Pritzker School of Medicine, University of Chicago Medical Center, Chicago, Illinois
| | - Rana Dajani
- Cell Therapy Center, University of Jordan, Amman, Jordan.,Department of Biology and Biotechnology, Hashemite University, Zarqa, Jordan
| | - Yousef Khader
- Department of Public Health and Community Medicine, Jordan University of Science and Technology, Irbid, Jordan
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28
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Besse K, Maiers M, Confer D, Albrecht M. On Modeling Human Leukocyte Antigen–Identical Sibling Match Probability for Allogeneic Hematopoietic Cell Transplantation: Estimating the Need for an Unrelated Donor Source. Biol Blood Marrow Transplant 2016; 22:410-7. [DOI: 10.1016/j.bbmt.2015.09.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Accepted: 09/10/2015] [Indexed: 11/24/2022]
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29
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Hussein AA, Al-Zaben A, Khattab E, Haroun A, Frangoul H. Hematopoietic stem cell transplantation from non-sibling matched family donors for patients with thalassemia major in Jordan. Pediatr Transplant 2016; 20:120-3. [PMID: 26493691 DOI: 10.1111/petr.12622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/18/2015] [Indexed: 12/16/2022]
Abstract
There are limited data on the outcome of patients with thalassemia receiving HSCT from non-sibling matched family donors. Of the 341 patients with thalassemia major that underwent donor search at our center from January 2003 to December 2011, 236 (69.2%) had fully matched family donor of which 28 patients (8.2%) had non-sibling matched family donors identified. We report on seven patients with a median age of eight yr (4-21) who underwent myeloablative (n = 4) or RIC (n = 3) HSCT. The median age of the donors was 33 yr (4-47), three were parents, two first cousins, one paternal uncle, and one paternal aunt. All patients achieved primary neutrophil and platelet engraftment at a median of 18 (13-20) and 16 days (11-20), respectively. One patient developed grade II acute GVHD, and two patients developed limited chronic GVHD. One patient experienced secondary GF requiring a second transplant. At a median follow-up of 69 months (7-110), all patients are alive and thalassemia free. Our data emphasize the need for extended family HLA typing for patients with thalassemia major in regions where there is high rate of consanguinity. Transplant from non-sibling matched family donor can result in excellent outcome.
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Affiliation(s)
- Ayad Ahmed Hussein
- Bone Marrow and Stem Cell Transplantation Program, King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Abdulhadi Al-Zaben
- Bone Marrow and Stem Cell Transplantation Program, King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Eman Khattab
- Bone Marrow and Stem Cell Transplantation Program, King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Anas Haroun
- Bone Marrow and Stem Cell Transplantation Program, King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Haydar Frangoul
- Pediatric Stem Cell Transplant Program, TriStar Children's Hospital and Sarah Cannon Research Institute, Nashville, TN, USA
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30
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Combined immunodeficiency in the United States and Kuwait: Comparison of patients' characteristics and molecular diagnosis. Clin Immunol 2015; 161:170-3. [PMID: 26248333 DOI: 10.1016/j.clim.2015.07.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 07/28/2015] [Indexed: 12/29/2022]
Abstract
AIM To compare different variables among (S)CID patients diagnosed in the USA and Kuwait. METHODS Review of patients registered in The US Immune Deficiency Network registry or Kuwait National PID Registry between 2004 and 2014. RESULTS Totals of 98 and 69 (S)CID patients were registered during the study period in the USIDNET registry and the KNPIDR, respectively. The average annual incidence rate for the period 2004-2014 of (S)CID in children in Kuwait was 13.01/100,000 children, with an estimated occurrence of 1/7500 live births. There were differences between the two countries in the following variables: age at onset and diagnosis, family history of (S)CID, parental consanguinity, and outcome. More than 14% of (S)CID patients from USIDNET registry were diagnosed through newborn screening. CONCLUSIONS Patients' characteristics and molecular causes of S(CID) are different between USA and Kuwait. NBS for SCID should be started in countries where the incidence of (S)CID is high.
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Matsumoto MM, Dajani R, Matthews KRW. Cord Blood Banking in the Arab World: Current Status and Future Developments. Biol Blood Marrow Transplant 2015; 21:1188-94. [PMID: 25687797 DOI: 10.1016/j.bbmt.2015.01.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 01/14/2015] [Indexed: 10/24/2022]
Abstract
Umbilical cord blood transplants are now used to treat numerous types of immune- and blood-related disorders and genetic diseases. Cord blood (CB) banks play an important role in these transplants by processing and storing CB units. In addition to their therapeutic potential, these banks raise ethical and regulatory questions, especially in emerging markets in the Arab world. In this article, the authors review CB banking in five countries in the region, Jordan, Saudi Arabia, Egypt, Qatar, and the United Arab Emirates, selected for their different CB banking policies and initiatives. In assessing these case studies, the authors present regional trends and issues, including religious perspectives, policies, and demographic risk factors. This research suggests strong incentives for increasing the number of CB units that are collected from and available to Arab populations. In addition, the deficit in knowledge concerning public opinion and awareness in the region should be addressed to ensure educated decision-making.
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Affiliation(s)
- Monica M Matsumoto
- James A. Baker III Institute for Public Policy, Science and Technology Policy Program, Rice University, Houston, Texas
| | - Rana Dajani
- Department of Biology and Biotechnology, Hashemite University of Jordan, Zarqa, Jordan
| | - Kirstin R W Matthews
- James A. Baker III Institute for Public Policy, Science and Technology Policy Program, Rice University, Houston, Texas.
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32
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Hematopoietic SCT in Iranian children 1991–2012. Bone Marrow Transplant 2015; 50:517-22. [DOI: 10.1038/bmt.2014.299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 10/26/2014] [Accepted: 11/21/2014] [Indexed: 11/08/2022]
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Samandary S, Kridane-Miledi H, Sandoval JS, Choudhury Z, Langa-Vives F, Spencer D, Chentoufi AA, Lemonnier FA, BenMohamed L. Associations of HLA-A, HLA-B and HLA-C alleles frequency with prevalence of herpes simplex virus infections and diseases across global populations: implication for the development of an universal CD8+ T-cell epitope-based vaccine. Hum Immunol 2014; 75:715-29. [PMID: 24798939 DOI: 10.1016/j.humimm.2014.04.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 04/15/2014] [Accepted: 04/15/2014] [Indexed: 02/01/2023]
Abstract
A significant portion of the world's population is infected with herpes simplex virus type 1 and/or type 2 (HSV-1 and/or HSV-2), that cause a wide range of diseases including genital herpes, oro-facial herpes, and the potentially blinding ocular herpes. While the global prevalence and distribution of HSV-1 and HSV-2 infections cannot be exactly established, the general trends indicate that: (i) HSV-1 infections are much more prevalent globally than HSV-2; (ii) over a half billion people worldwide are infected with HSV-2; (iii) the sub-Saharan African populations account for a disproportionate burden of genital herpes infections and diseases; (iv) the dramatic differences in the prevalence of herpes infections between regions of the world appear to be associated with differences in the frequencies of human leukocyte antigen (HLA) alleles. The present report: (i) analyzes the prevalence of HSV-1 and HSV-2 infections across various regions of the world; (ii) analyzes potential associations of common HLA-A, HLA-B and HLA-C alleles with the prevalence of HSV-1 and HSV-2 infections in the Caucasoid, Oriental, Hispanic and Black major populations; and (iii) discusses how our recently developed HLA-A, HLA-B, and HLA-C transgenic/H-2 class I null mice will help validate HLA/herpes prevalence associations. Overall, high prevalence of herpes infection and disease appears to be associated with high frequency of HLA-A(∗)24, HLA-B(∗)27, HLA-B(∗)53 and HLA-B(∗)58 alleles. In contrast, low prevalence of herpes infection and disease appears to be associated with high frequency of HLA-B(∗)44 allele. The finding will aid in developing a T-cell epitope-based universal herpes vaccine and immunotherapy.
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Affiliation(s)
- Sarah Samandary
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Hédia Kridane-Miledi
- UNITE INSERM 1016, Institut Cochin, Hôpital Saint-Vincent-de-Paul, 82, Avenue Denfert-Rochereau, 75674 Paris Cedex 14, France
| | - Jacqueline S Sandoval
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Zareen Choudhury
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Francina Langa-Vives
- Plate-Forme Technologique, Centre d'Ingénierie Génétique Murine, Département de Biologie du Développement, Institut Pasteur, 75015 Paris, France
| | - Doran Spencer
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - Aziz A Chentoufi
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
| | - François A Lemonnier
- UNITE INSERM 1016, Institut Cochin, Hôpital Saint-Vincent-de-Paul, 82, Avenue Denfert-Rochereau, 75674 Paris Cedex 14, France
| | - Lbachir BenMohamed
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Irvine, CA 92697, USA; Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, CA 92697, USA; Institute for Immunology, University of California Irvine, Irvine, CA 92697, USA.
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Bone marrow transplantation for thalassemia from alternative related donors: improved outcomes with a new approach. Blood 2013; 122:2751-6. [PMID: 23963044 DOI: 10.1182/blood-2013-07-513473] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Bone marrow transplantation (BMT) performance can be limited by a lack of ideal donors, and the role of alternative donor hematopoietic cell transplantation in thalassemia is not well established. Here we used a new treatment protocol (Pc 26.1) in 16 thalassemia patients to perform BMT using phenotypically HLA-identical or 1-antigen-mismatched relatives (related donors [RDs]). We compared these results with HLA-matched sibling (matched sibling donors [MSDs]) BMT in 66 patients. The entire RD group and 88% of MSD group had sustained engraftment. Rejection incidence was 0% in the RD and 12% (95% confidence interval [95% CI], 6%-21%) in MSD groups (P = .15), with respective thalassemia-free survival probabilities of 94% (95% CI, 63%-99%) and 82% (95% CI, 70%-89%) (P = .24). Transplant-related mortality was 6% (95% CI, 1%-26%) in the RD group and 8% (95% CI, 3%-16%) in the MSD group (P = .83). The intensified new protocol was not associated with increased nonhematologic toxicity. The present data show that the Pc 26.1 preparative regimen allows thalassemia patients to safely undergo BMT from RDs who are not HLA-matched siblings, with transplant outcomes similar to patients with MSD grafts.
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