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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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Kotsev SV, Miteva D, Krayselska S, Shopova M, Pishmisheva-Peleva M, Stanilova SA, Velikova T. Hypotheses and facts for genetic factors related to severe COVID-19. World J Virol 2021; 10:137-155. [PMID: 34367930 PMCID: PMC8316875 DOI: 10.5501/wjv.v10.i4.137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/19/2021] [Accepted: 05/23/2021] [Indexed: 02/06/2023] Open
Abstract
Genome-wide association analysis allows the identification of potential candidate genes involved in the development of severe coronavirus disease 2019 (COVID-19). Hence, it seems that genetics matters here, as well. Nevertheless, the virus's nature, including its RNA structure, determines the rate of mutations leading to new viral strains with all epidemiological and clinical consequences. Given these observations, we herein comment on the current hypotheses about the possible role of the genes in association with COVID-19 severity. We discuss some of the major candidate genes that have been identified as potential genetic factors associated with the COVID-19 severity and infection susceptibility: HLA, ABO, ACE2, TLR7, ApoE, TYK2, OAS, DPP9, IFNAR2, CCR2, etc. Further study of genes and genetic variants will be of great benefit for the prevention and assessment of the individual risk and disease severity in different populations. These scientific data will serve as a basis for the development of clinically applicable diagnostic and prognostic tests for patients at high risk of COVID-19.
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Affiliation(s)
- Stanislav Vasilev Kotsev
- Department of Infectious Diseases, Pazardzhik Multiprofile Hospital for Active Treatment, Pazardzhik 4400, Bulgaria
| | - Dimitrina Miteva
- Department of Genetics, Sofia University “St. Kliment Ohridski”, Sofia 1000, Bulgaria
| | | | - Martina Shopova
- Department of Infectious Diseases, Pazardzhik Multiprofile Hospital for Active Treatment, Pazardzhik 4400, Bulgaria
| | - Maria Pishmisheva-Peleva
- Department of Infectious Diseases, Pazardzhik Multiprofile Hospital for Active Treatment, Pazardzhik 4400, Bulgaria
| | - Spaska Angelova Stanilova
- Department of Molecular Biology, Immunology and Medical Genetics, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Tsvetelina Velikova
- Department of Clinical Immunology, University Hospital Lozenetz, Sofia 1407, Bulgaria
- Medical Faculty, Sofia University “St. Kliment Ohridski”, Sofia 1407, Bulgaria
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Hajjej A, Almawi WY, Hattab L, Hmida S. Anthropological analysis of Tunisian populations as inferred from HLA class I and class II genetic diversity: A meta-analysis. Immunol Lett 2017; 185:12-26. [PMID: 28274795 DOI: 10.1016/j.imlet.2017.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/12/2017] [Indexed: 11/26/2022]
Abstract
Despite their importance, anthropological meta-analyses which allow for comprehensive evaluation of the relationships of a given population were rare. This meta-analysis evaluates the origin of Tunisians using polymorphic profile of HLA class I (A, B), and class II (DRB1, DQB1) genes, in historical, social and cultural context, and is the only analysis in the Middle East-North Africa (MENA) region. A total of 20 eligible populations were selected from several databases, and included representing 2553 Tunisian individuals, who were compared with Mediterranean and sub-Saharan populations. In total, 204 HLA alleles were detected in Tunisians, which comprised 54 HLA-A, 76 HLA-B, 50 DRB1, and 24 DQB1 alleles. The most frequent alleles were A*02:01(24.72%) in Berbers of Zrawa, B*50:01 (13.90.11%) in Tunisian-So, DRB1*07:01 (28.66%) in Ghannouchians, and DQB1*02:01 (42.79%) in Tunisians-H. The A, B, DRB, and DQB1 genotypes of 420 individuals were further subjected to a selection study. Despite the relatively large sample size, the loci depicted non-significant negative Fnd values, an indication of overall trend to balancing selection or gene flow. Except for Berbers of Djerba, dendrograms, correspondence analyses, genetic distances and haplotype analysis demonstrated the close relatedness of Berbers, Southern and Northern Tunisians, and strong relatedness was evident to Western Mediterranean, North African and Iberian populations, but not Sub-Saharans and Eastern Mediterranean populations, including Arabs. Collectively, this suggests that the contribution of Arabs and sub-Saharans to the present Tunisian gene pool is low. In addition, all Mediterranean populations depict a typical Mediterranean substratum, except for Greeks.
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Affiliation(s)
- Abdelhafidh Hajjej
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia.
| | - Wassim Y Almawi
- Department of Medical Biochemistry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Lasmar Hattab
- Department of Medical Analysis, Regional Hospital of Gabes, Tunisia
| | - Slama Hmida
- Department of Immunogenetics, National Blood Transfusion Center, Tunis, Tunisia
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Jin B, Wu BW, Wen ZC, Shi HM, Zhu J. HLA-DR3 antigen in the resistance to idiopathic dilated cardiomyopathy. Braz J Med Biol Res 2016; 49:e5131. [PMID: 27007655 PMCID: PMC4819411 DOI: 10.1590/1414-431x20165131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 01/19/2016] [Indexed: 11/22/2022] Open
Abstract
Idiopathic dilated cardiomyopathy (IDC) has been hypothesized as a multifactorial disorder initiated by an environment trigger in individuals with predisposing human leukocyte antigen (HLA) alleles. Published data on the association between HLA-DR3 antigen and IDC risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. Studies were identified by searching the PUBMED and Embase database (starting from June 2015). A total of 19 case-control studies including 1378 cases and 10383 controls provided data on the association between HLA-DR3 antigen and genetic susceptibility to IDC. Overall, significantly decreased frequency of HLA-DR3 allele (OR=0.72; 95%CI=0.58-0.90; P=0.004) was found in patients with IDC compared with controls. When stratified by myocardial biopsy or non-biopsy cases, statistically decreased risk was found for IDC in myocardial biopsy cases (OR=0.69; 95%CI=0.57-0.84; P=0.0003). In the subgroup analysis by ethnicity, borderline statistically significantly decreased risk was found among Europeans from 12 case-control studies (OR=0.76; 95%CI=0.58-1.00; P=0.05). In conclusion, our results suggest that individuals with HLA-DR3 antigen may have a protective effect against IDC.
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Affiliation(s)
- B Jin
- Department of Cardiology, Huashan Hospital, Fudan University, China
| | - B W Wu
- Department of Cardiology, Huashan Hospital, Fudan University, China
| | - Z C Wen
- Department of Cardiology, Huashan Hospital, Fudan University, China
| | - H M Shi
- Department of Cardiology, Huashan Hospital, Fudan University, China
| | - J Zhu
- Department of Cardiology, Huashan Hospital, Fudan University, China
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Pankuweit S, Ruppert V, Jónsdóttir Þ, Müller HH, Meyer T. The HLA class II allele DQB1*0309 is associated with dilated cardiomyopathy. Gene 2013; 531:180-3. [DOI: 10.1016/j.gene.2013.09.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 09/06/2013] [Indexed: 11/26/2022]
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Li X, Luo R, Jiang R, Chen R, Hua W. Human leukocyte antigen-DQ beta 1 chain (DQB1) gene polymorphisms are associated with dilated cardiomyopathy: a systematic review and meta-analysis. Heart Lung 2012; 41:360-7. [PMID: 22386792 DOI: 10.1016/j.hrtlng.2012.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 01/06/2012] [Accepted: 01/28/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Previous studies reported an association between the human leukocyte antigen (HLA)-DQ antigen beta 1 chain (DQB1) alleles and dilated cardiomyopathy (DCM). However, the results of those studies have been inconsistent. To clarify the association between HLA-DQB1 and DCM, we performed a systematic review and meta-analysis of case-control studies. METHODS Searches were performed using the PubMed database, the Excerpta Medica Database (EMBASE), the Cochrane Central Register of Controlled Trials database, the Science Citation Index database, the China Biology Medicine disc, the China National Knowledge Information database, the Wanfang database, and the Chinese Scientific and Technological Journal Database (VIP database). The search terms included "dilated cardiomyopathy" and "DQB1." Ten case-controlled studies were included in the systematic review to assess the association between DCM and the HLA-DQB1*0201, *0302, *0504, *0301, and *0602 alleles. RESULTS In total, 8 studies were included in the meta-analysis of the HLA-DQB1 *0201 allele. The pooled odds risk (OR) for this allele was .47, with a 95% confidence interval (CI) of .28 to .77 (P < .01). With respect to the HLA-DQB1 *0504 allele, only 3 studies were included in our meta-analysis. The pooled OR was .36 (95% CI, .15 to .84; P < .05). Nine, 8, and 7 studies of the HLA-DQB1 *0301, *0302, and *0602 alleles, respectively, were included in our meta-analysis. No statistically significant difference was evident in the frequency of these 3 alleles between the DCM and normal control groups. CONCLUSION The HLA-DQB1 *0201 and *0504 alleles may be protective against DCM.
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Affiliation(s)
- Xiaoping Li
- Department of Clinical Electrophysiology, Fuwai Hospital and Cardiovascular Institute, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, People's Republic of China
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Deng J, Luo R, Li X. HLA-DRB1 gene polymorphism is associated with idiopathic dilated cardiomyopathy: a meta-analysis. J Cardiovasc Med (Hagerstown) 2011; 12:648-52. [PMID: 21709571 DOI: 10.2459/jcm.0b013e328349424b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Some studies have reported that the HLA-DRB1 allele was associated with idiopathic dilated cardiomyopathy. However, there have been inconsistent results among different studies. To clarify the association of HLA-DRB1 and idiopathic dilated cardiomyopathy, a meta-analysis of case-control studies was performed. METHODS PubMed database, Science Citation Index database, The Cochrane Central Register of Controlled Trials database, China National Knowledge Information database, Chinese Biomedical Literature database, Wanfang database, and VIP database in China were searched. Search terms included dilated cardiomyopathy and DRB1. Five case-control studies were included in the present meta-analysis to assess the association between HLA-DRB1*1401, HLA-DRB1*0901, HLA-DRB1*0301, and idiopathic dilated cardiomyopathy. RESULTS A total of four studies were included in our meta-analysis for HLA-DRB1*1401 and HLA-DRB1*0901. The pooled odds ratio (OR) was 2.6 [95% confidence interval (CI) 1.11-6.11, P<0.05] and 0.70 (95% CI 0.48-1.00, P=0.05), respectively. For the HLA-DRB1*0301 allele, just three studies were included in our meta-analysis. The pooled OR was 0.49 (95% CI 0.27-0.91, P<0.05). The present meta-analysis indicated that the frequency of HLA-DRB1*1401 was higher in idiopathic dilated cardiomyopathy patients than in healthy people, whereas HLA-DRB1*0901 and HLA-DRB1*0301 were higher in healthy people than in idiopathic dilated cardiomyopathy patients. CONCLUSION The HLA-DRB1*1401 allele might be a risk factor for idiopathic dilated cardiomyopathy and HLA-DRB1*0901 and HLA-DRB1*0301 might protect humans from idiopathic dilated cardiomyopathy.
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Affiliation(s)
- Jinlong Deng
- Department of Cardiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, PR China
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A meta-analysis of HLA-DR polymorphism and genetic susceptibility to idiopathic dilated cardiomyopathy. Mol Biol Rep 2011; 39:221-6. [PMID: 21556773 DOI: 10.1007/s11033-011-0729-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2010] [Accepted: 04/23/2011] [Indexed: 01/30/2023]
Abstract
Idiopathic dilated cardiomyopathy (IDC) has been hypothesized as a multifactorial disorder initiated by an environment trigger in individuals with predisposing human leukocyte antigen (HLA) alleles. Published data on the association between HLA-DR polymorphism and IDC risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. A total of 19 case-control studies including 1,378 cases and 10,383 controls provided data on the association between HLA-DR polymorphism and genetic susceptibility to IDC. Overall, statistically elevated frequencies of HLA-DR4 (OR 1.58; 95% CI 1.21-2.07; P=0.0009) and HLA-DR5 (OR 1.35; 95% CI 1.05-1.73; P=0.02) alleles were found in patients with IDC compared with controls. Individuals with HLA-DR3 antigen have a protective effect against IDC (OR 0.72; 95% CI 0.58-0.90; P=0.004). In summary, this meta-analysis indicated that certain HLA-DR alleles may be genetic markers for susceptibility and resistance to IDC.
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Jin B, Ni H, Geshang Q, Li Y, Shen W, Shi H. HLA-DR4 antigen and idiopathic dilated cardiomyopathy susceptibility: a meta-analysis involving 11,761 subjects. ACTA ACUST UNITED AC 2011; 77:107-11. [DOI: 10.1111/j.1399-0039.2010.01589.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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