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Chiorean AD, Nicula GZ, Bâlici Ș, Vică ML, Iancu Loga LI, Dican L, Matei HV. HLA Class II Allele Groups Involved in Autoimmune Thyroid Diseases: Hashimoto's Thyroiditis and Basedow-Graves Disease. Life (Basel) 2024; 14:441. [PMID: 38672712 PMCID: PMC11050925 DOI: 10.3390/life14040441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Autoimmune thyroid diseases (AITD), particularly Hashimoto's thyroiditis (HT) and Basedow-Graves disease (BGD) are diseases of global public health concern, characterized by autoimmune attacks on the thyroid gland, leading to hypothyroidism in HT and hyperthyroidism in BGD. We conducted a study between 2019 and 2021 in northwestern Transylvania (Romania) on patients with HT and with BGD compared to the control group. The aim of the study was to investigate the correlations of HLA class II alleles with AITD by identifying potential genetic susceptibility factors such as HLA-DRB1 and HLA-DQB1 genes in patients diagnosed with HT and BGD. Various molecular biology methods, including SSP-PCR low-resolution and PCR-SSO were employed to analyze DNA samples from patients and control subjects. Our study revealed the influence of the HLA-DRB1*03/*16 genotype as a genetic susceptibility factor for HT, a similar influence regarding BGD being observed for the HLA-DRB1*03 allele group, DRB1*03/*16 genotype, and the DRB1*03/DQB1*06 haplotype. The only protective factor detected in our study was the HLA-DRB1*13 allele group, for both HT and BGD. By elucidating any specific allele or genotype associations that might contribute to the development of AITD, our study can contribute to the prevention and early detection of these diseases.
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Affiliation(s)
- Alin-Dan Chiorean
- Department of Cell and Molecular Biology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania; (A.-D.C.); (G.Z.N.); (Ș.B.); (H.V.M.)
- Emergency Clinical Hospital for Children, 400370 Cluj-Napoca, Romania
| | - Gheorghe Zsolt Nicula
- Department of Cell and Molecular Biology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania; (A.-D.C.); (G.Z.N.); (Ș.B.); (H.V.M.)
| | - Ștefana Bâlici
- Department of Cell and Molecular Biology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania; (A.-D.C.); (G.Z.N.); (Ș.B.); (H.V.M.)
| | - Mihaela Laura Vică
- Department of Cell and Molecular Biology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania; (A.-D.C.); (G.Z.N.); (Ș.B.); (H.V.M.)
- Legal Medicine Institute Cluj-Napoca, 400006 Cluj-Napoca, Romania
| | - Luminita-Ioana Iancu Loga
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (L.-I.I.L.); (L.D.)
| | - Lucia Dican
- Clinical Institute of Urology and Renal Transplantation, 400000 Cluj-Napoca, Romania; (L.-I.I.L.); (L.D.)
- Department of Medical Biochemistry, Faculty of Medicine, “Iuliu-Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Horea Vladi Matei
- Department of Cell and Molecular Biology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania; (A.-D.C.); (G.Z.N.); (Ș.B.); (H.V.M.)
- Legal Medicine Institute Cluj-Napoca, 400006 Cluj-Napoca, Romania
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Gao Y, Twigg AR, Hirose R, Roll GR, Nowacki AS, Maytin EV, Vidimos AT, Rajalingam R, Arron ST. Association of HLA Antigen Mismatch With Risk of Developing Skin Cancer After Solid-Organ Transplant. JAMA Dermatol 2020; 155:307-314. [PMID: 30673077 DOI: 10.1001/jamadermatol.2018.4983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Importance Risk factors for the development of skin cancer after solid-organ transplant can inform clinical care, but data on these risk factors are limited. Objective To study the association between HLA antigen mismatch and skin cancer incidence after solid-organ transplant. Design, Setting, and Participants This retrospective cohort study is a secondary analysis of the multicenter Transplant Skin Cancer Network study of 10 649 adults who underwent a primary solid-organ transplant between January 1, 2003, and December 31, 2003, or between January 1, 2008, and December 31, 2008. These participants were identified through the Scientific Registry of Transplant Recipients standard analysis files, which contain data collected mostly by the Organ Procurement and Transplantation Network. Participants were matched to skin cancer outcomes by medical record review. This study was conducted from August 1, 2016, to July 31, 2017. Main Outcomes and Measures The primary outcome was time to diagnosis of posttransplant skin cancer, including squamous cell carcinoma, melanoma, and Merkel cell carcinoma. The HLA antigen mismatch was calculated based on the 2016 Organ Procurement and Transplantation Network guidelines. Risk of skin cancer was analyzed using a multivariate Cox proportional hazards regression model. Results In total, 10 649 organ transplant recipients (6776 men [63.6%], with a mean [SD] age of 51 [12] years) contributed 59 923 years of follow-up. For each additional mismatched allele, a 7% to 8% reduction in skin cancer risk was found (adjusted hazard ratio [HR], 0.93; 95% CI, 0.87-0.99; P = .01). Subgroup analysis found the protective effect of HLA antigen mismatch to be statistically significant in lung (adjusted HR, 0.70; 95% CI, 0.56-0.87; P = .001) and heart (adjusted HR, 0.75; 95% CI, 0.60-0.93; P = .008) transplant recipients but not for recipients of liver, kidney, or pancreas. The degree of HLA-DR mismatch, but not HLA-A or HLA-B mismatch, was the most statistically significant for skin cancer risk (adjusted HR, 0.85; 95% CI, 0.74-0.97; P = .01). Conclusions and Relevance The HLA antigen mismatch appears to be associated with reductions in the risk of skin cancer after solid-organ transplant among heart and lung transplant recipients; this finding suggests that HLA antigen mismatch activates the tumor surveillance mechanisms that protect against skin cancer in transplant recipients and that skin cancer risk may be higher in patients who received a well-matched organ.
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Affiliation(s)
- Yi Gao
- Department of Medicine, Banner University Medical Center, Phoenix, Arizona
| | - Amanda R Twigg
- Department of Dermatology, University of California, San Francisco, San Francisco
| | - Ryutaro Hirose
- Division of Transplant Surgery, Department of Surgery, University of California, San Francisco, San Francisco
| | - Garrett R Roll
- Division of Transplant Surgery, Department of Surgery, University of California, San Francisco, San Francisco
| | - Amy S Nowacki
- Department of Quantitative Health Sciences, The Cleveland Clinic Foundation, Cleveland, Ohio
| | - Edward V Maytin
- Department of Dermatology, The Cleveland Clinic Foundation, Cleveland, Ohio
| | - Allison T Vidimos
- Department of Dermatology, The Cleveland Clinic Foundation, Cleveland, Ohio
| | - Raja Rajalingam
- Immunogenetics and Transplantation Laboratory, Department of Surgery, University of California, San Francisco, San Francisco
| | - Sarah T Arron
- Department of Dermatology, University of California, San Francisco, San Francisco
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Habets THPM, Hepkema BG, Kouprie N, Schnijderberg MCA, van Smaalen TC, Bungener LB, Christiaans MHL, Bos GMJ, Vanderlocht J. The prevalence of antibodies against the HLA-DRB3 protein in kidney transplantation and the correlation with HLA expression. PLoS One 2018; 13:e0203381. [PMID: 30192820 PMCID: PMC6128541 DOI: 10.1371/journal.pone.0203381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 08/20/2018] [Indexed: 11/29/2022] Open
Abstract
Human leukocyte antigen (HLA)-DRB3 is a functional HLA class II gene, which has a limited allele diversity in the human population. Furthermore, the HLA-DRB3 gene is only present in a subset of individuals. Therefore, in organ transplantation, this HLA molecule is frequently mismatched between patient and graft donor and thus antibodies against this mismatched HLA molecule can develop. In this study, we aimed to evaluate the prevalence and reactivity of these antibodies and aimed to identify factors that underlie antibody formation against HLA-DRB3. We showed in our patient cohort that HLA-DRB3 antibodies are identified in about 7% of all patients that were screened with solid phase assays. In these assays, we observed multiple antibody reactivity patterns indicating that HLA-DRB3 harbours multiple epitopes. In those cases, where we succeeded at tracing back the induction of these antibodies to the molecular HLA typing of the immunogenic event, we noticed a different frequency of HLA-DRB1 allele groups in the donors as compared to a control group. To a certain extent this distribution (e.g. HLA-DRB1*11 individuals) could be linked to an altered expression level. However, it also appears that different HLA-DRB3 alleles (e.g. HLA-DRB3*01 group) vary in their immunogenicity without having an expression difference. In conclusion, our study provides information on the immunogenicity and reactivity patterns of antibodies against HLA-DRB3 in kidney transplantation, and it points towards the possibility of HLA expression as a factor underlying antibody formation.
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Affiliation(s)
- Thomas H. P. M. Habets
- Department of Transplantation Immunology, Tissue Typing Laboratory, Maastricht University Medical Center +, Maastricht, The Netherlands
- Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center +, Maastricht, The Netherlands
| | - Bouke G. Hepkema
- Transplantation Immunology, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Niels Kouprie
- Transplantation Immunology, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Melanie C. A. Schnijderberg
- Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center +, Maastricht, The Netherlands
| | - Tim C. van Smaalen
- Department of Surgery, Maastricht University Medical Center +, Maastricht, The Netherlands
| | - Laura B. Bungener
- Transplantation Immunology, Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Maarten H. L. Christiaans
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center +, Maastricht, The Netherlands
| | - Gerard M. J. Bos
- Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center +, Maastricht, The Netherlands
- CiMaas BV, Maastricht, The Netherlands
| | - Joris Vanderlocht
- Department of Transplantation Immunology, Tissue Typing Laboratory, Maastricht University Medical Center +, Maastricht, The Netherlands
- Department of Internal Medicine, Division of Hematology, Maastricht University Medical Center +, Maastricht, The Netherlands
- Central Diagnostic Laboratory, Maastricht University Medical Center +, Maastricht, The Netherlands
- * E-mail:
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Althaf MM, El Kossi M, Jin JK, Sharma A, Halawa AM. Human leukocyte antigen typing and crossmatch: A comprehensive review. World J Transplant 2017; 7:339-348. [PMID: 29312863 PMCID: PMC5743871 DOI: 10.5500/wjt.v7.i6.339] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/22/2017] [Accepted: 10/17/2017] [Indexed: 02/05/2023] Open
Abstract
Renal transplantation remains the best option for patients suffering from end stage renal disease (ESRD). Given the worldwide shortage of organs and growing population of patients with ESRD, those waitlisted for a transplant is ever expanding. Contemporary crossmatch methods and human leukocyte antigen (HLA) typing play a pivotal role in improving organ allocation and afford better matches to recipients. Understanding crossmatch as well as HLA typing for renal transplantation and applying it in clinical practice is the key step to achieve a successful outcome. Interpretation of crossmatch results can be quite challenging where clinicians have not had formal training in applied transplant immunology. This review aims to provide a worked example using a clinical vignette. Furthermore, each technique is discussed in detail with its pros and cons. The index case is that of a young male with ESRD secondary to Lupus nephritis. He is offered a deceased donor kidney with a 1-0-0 mismatch. His complement dependent cytotoxicity (CDC) crossmatch reported positive for B lymphocyte, but flow cytometry crossmatch (FCXM) was reported negative for both B and T lymphocytes. Luminex-SAB (single antigen bead) did not identify any donor specific antibodies (DSA). He never had a blood transfusion. The positive CDC-crossmatch result is not concordant with DSA status. These implausible results are due to underlying lupus erythematosus, leading to false-positive B-lymphocyte crossmatch as a result of binding immune complexes to Fc-receptors. False positive report of CDC crossmatch can be caused by the underlying autoimmune diseases such as lupus erythematosus, that may lead to inadvertent refusal of adequate kidney grafts. Detailed study of DSA by molecular technique would prevent wrong exclusion of such donors. Based on these investigations this patient is deemed to have "standard immunological risk" for renal transplantation.
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Affiliation(s)
- Mohammed Mahdi Althaf
- Jack Pryor Renal Unit, Norfolk and Norwich University Hospital - NHS Foundation Trust, Norwich NR4 7UY, United Kingdom
- Faculty of Health and Science, University of Liverpool, Institute of Learning and Teaching, School of Medicine, Liverpool L69 3GB, United Kingdom
| | - Mohsen El Kossi
- Faculty of Health and Science, University of Liverpool, Institute of Learning and Teaching, School of Medicine, Liverpool L69 3GB, United Kingdom
- Doncaster Royal Infirmary, Doncaster DN2 5LT, United Kingdom
| | - Jon Kim Jin
- Faculty of Health and Science, University of Liverpool, Institute of Learning and Teaching, School of Medicine, Liverpool L69 3GB, United Kingdom
- Nottingham Children Hospital, Nottingham NG7 2UH, United Kingdom
| | - Ajay Sharma
- Faculty of Health and Science, University of Liverpool, Institute of Learning and Teaching, School of Medicine, Liverpool L69 3GB, United Kingdom
- Royal Liverpool University Hospitals, Liverpool L7 8XP, United Kingdom
| | - Ahmed Mostafa Halawa
- Faculty of Health and Science, University of Liverpool, Institute of Learning and Teaching, School of Medicine, Liverpool L69 3GB, United Kingdom
- Department of Transplantation Surgery, Sheffield Teaching Hospitals, Sheffield S5 7AU, United Kingdom
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5
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Alfirevic A, Gonzalez-Galarza F, Bell C, Martinsson K, Platt V, Bretland G, Evely J, Lichtenfels M, Cederbrant K, French N, Naisbitt D, Park BK, Jones AR, Pirmohamed M. In silico analysis of HLA associations with drug-induced liver injury: use of a HLA-genotyped DNA archive from healthy volunteers. Genome Med 2012; 4:51. [PMID: 22732016 PMCID: PMC3698530 DOI: 10.1186/gm350] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 04/20/2012] [Accepted: 06/25/2012] [Indexed: 12/12/2022] Open
Abstract
Background Drug-induced liver injury (DILI) is one of the most common adverse reactions leading to product withdrawal post-marketing. Recently, genome-wide association studies have identified a number of human leukocyte antigen (HLA) alleles associated with DILI; however, the cellular and chemical mechanisms are not fully understood. Methods To study these mechanisms, we established an HLA-typed cell archive from 400 healthy volunteers. In addition, we utilized HLA genotype data from more than four million individuals from publicly accessible repositories such as the Allele Frequency Net Database, Major Histocompatibility Complex Database and Immune Epitope Database to study the HLA alleles associated with DILI. We utilized novel in silico strategies to examine HLA haplotype relationships among the alleles associated with DILI by using bioinformatics tools such as NetMHCpan, PyPop, GraphViz, PHYLIP and TreeView. Results We demonstrated that many of the alleles that have been associated with liver injury induced by structurally diverse drugs (flucloxacillin, co-amoxiclav, ximelagatran, lapatinib, lumiracoxib) reside on common HLA haplotypes, which were present in populations of diverse ethnicity. Conclusions Our bioinformatic analysis indicates that there may be a connection between the different HLA alleles associated with DILI caused by therapeutically and structurally different drugs, possibly through peptide binding of one of the HLA alleles that defines the causal haplotype. Further functional work, together with next-generation sequencing techniques, will be needed to define the causal alleles associated with DILI.
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Affiliation(s)
- Ana Alfirevic
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, The Waterhouse Building, Brownlow Street 1-5, Liverpool, L69 3GL, UK.
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Lyu SY, Park WB. Gene network analysis on the effect of Viscum album var. coloratum in T cells stimulated with anti-CD3/CD28 antibodies. Arch Pharm Res 2011; 34:1735-49. [DOI: 10.1007/s12272-011-1018-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 04/27/2011] [Accepted: 06/08/2011] [Indexed: 01/15/2023]
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7
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Li JP, Li XF, Chen Y, Zhang X, Liu XZ. Identification of a novel HLA-A*26 allele, A*26:36, by sequence-based typing. TISSUE ANTIGENS 2011; 77:154-155. [PMID: 21214528 DOI: 10.1111/j.1399-0039.2010.01592.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The novel HLA (human leukocyte angiten)-A*26 allele differs from A*26:01:01 by a single nucleotide substitution at position 292 of exon 2 where a 'G' change to 'C'.
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Affiliation(s)
- J-P Li
- Liaoning Blood Center, HLA Typing Lab, Shenyang, Liaoning, China
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8
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The ever-expanding list of HLA alleles: changing HLA nomenclature and its relevance to clinical transplantation. Transplant Rev (Orlando) 2011; 25:1-8. [DOI: 10.1016/j.trre.2010.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Hosono S, Kawase T, Matsuo K, Watanabe M, Kajiyama H, Hirose K, Suzuki T, Kidokoro K, Ito H, Nakanishi T, Yatabe Y, Hamajima N, Kikkawa F, Tajima K, Tanaka H. HLA-A alleles and the risk of cervical squamous cell carcinoma in Japanese women. J Epidemiol 2010; 20:295-301. [PMID: 20501960 PMCID: PMC3900789 DOI: 10.2188/jea.je20090155] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND We conducted a case-control study to examine the relationship between human leukocyte antigen-A (HLA-A) allele polymorphism and the pathogenesis of cervical neoplasia among Japanese women. METHODS A total of 119 patients with invasive cervical squamous cell carcinoma were compared to 119 age- and menopausal status-matched non-cancer controls. Blood samples were taken from all cases and controls and lifestyle information was collected by means of a self-administered questionnaire. The estimated impact of HLA-A alleles on cervical cancer risk was evaluated by unconditional logistic regression models. RESULTS The frequency of HLA-A(*)0206 among cases was significantly lower than among controls (P = 0.006). There was an inverse association between A(*)0206 and cervical cancer risk (odds ratio [OR] = 0.31, 95% confidence interval [95% CI] = 0.15 to 0.65, P = 0.002), and a positive association for HLA-A(*)2402 (OR = 1.76, 95% CI = 1.00 to 3.09, P = 0.048). After correction for multiple comparisons, A(*)0206 was significantly associated with reduced cervical cancer risk (corrected P = 0.036). Furthermore, the inverse association between A(*)0206 and cervical cancer risk was independent of smoking status (never smoker: OR = 0.37, 95% CI = 0.15 to 0.90; ever smoker: OR = 0.23, 95% CI = 0.06 to 0.89). CONCLUSIONS There was an inverse association between HLA-A(*)0206 and cervical cancer risk among Japanese women, which suggests that HLA-A polymorphism influences cervical cancer risk. Further investigation in other populations is thus warranted.
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Affiliation(s)
- Satoyo Hosono
- Deparment of Gynecology and Obstetrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Marsh SGE, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Fernández-Viña M, Geraghty DE, Holdsworth R, Hurley CK, Lau M, Lee KW, Mach B, Maiers M, Mayr WR, Müller CR, Parham P, Petersdorf EW, Sasazuki T, Strominger JL, Svejgaard A, Terasaki PI, Tiercy JM, Trowsdale J. Nomenclature for factors of the HLA system, 2010. TISSUE ANTIGENS 2010. [PMID: 20356336 DOI: 10.1111/j.1399‐0039.2010.01466.x] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Marsh SGE, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Fernández-Viña M, Geraghty DE, Holdsworth R, Hurley CK, Lau M, Lee KW, Mach B, Maiers M, Mayr WR, Müller CR, Parham P, Petersdorf EW, Sasazuki T, Strominger JL, Svejgaard A, Terasaki PI, Tiercy JM, Trowsdale J. Nomenclature for factors of the HLA system, 2010. TISSUE ANTIGENS 2010; 75:291-455. [PMID: 20356336 PMCID: PMC2848993 DOI: 10.1111/j.1399-0039.2010.01466.x] [Citation(s) in RCA: 2944] [Impact Index Per Article: 210.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Faner R, James E, Huston L, Pujol-Borrel R, Kwok WW, Juan M. Reassessing the role of HLA-DRB3 T-cell responses: evidence for significant expression and complementary antigen presentation. Eur J Immunol 2010; 40:91-102. [PMID: 19830726 DOI: 10.1002/eji.200939225] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In humans, several HLA-DRB loci (DRB1/3/4/5) encode diverse beta-chains that pair with alpha-chains to form DR molecules on the surface of APC. While DRB1 and DRB5 have been extensively studied, the role of DRB3/4 products of DR52/DR53 haplotypes has been largely neglected. To clarify the relative expression of DRB3, we quantified DRB3 mRNA levels in comparison with DRB1 mRNA from the same haplotype in both B cells and monocytes, observing quantitatively significant DRB3 synthesis. In CD19+ cells, DRB1*03/11/13 was 3.5-fold more abundant than DRB3, but in CD14+ this difference was only two-fold. Monocytes also had lower overall levels of DR mRNA compared with B cells, which was confirmed by cell surface staining of DRB1 and DRB3. To evaluate the functional role of DRB3, tetramer-guided epitope mapping was used to detect T cells against tetanus toxin and several influenza antigens presented by DRB3*0101/0202 or DRB1*03/11/13. None of the epitopes discovered were shared among any of the DR molecules. Quantitative assessment of DRB3-tetanus toxin specific T cells revealed that they are present at similar frequencies as those observed for DRB1. These results suggest that DRB3 plays a significant role in antigen presentation with different epitopic preferences to DRB1. Therefore, DRB3, like DRB5, serves to extend and complement the peptide repertoire of DRB1 in antigen presentation.
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Affiliation(s)
- Rosa Faner
- Laboratory of Immunobiology Research and Applications to Diagnosis (LIRAD). Banc de Sang i Teixits, Badalona, Spain
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13
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Li JP, Li XF, Chen Y, Zhang X, Liu XZ. Identification of a new human leukocyte antigen A allele, HLA-A*3020. ACTA ACUST UNITED AC 2009; 73:606-7. [PMID: 19493238 DOI: 10.1111/j.1399-0039.2009.01230.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new human leukocyte antigen (HLA) A allele, HLA-A*3020, was found during routine HLA genotyping by polymerase chain reaction-sequence specific oligonucleotide probes and sequencing-based typing. The A*3020 allele has one nucleotide change at position 294 of exon 2 from the closest matching allele A*300101, resulting in an amino acid change from D (GAC) to E (GAA) at codon 98.
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Affiliation(s)
- J-P Li
- HLA Laboratory, Liaoning Blood Center, Shenyang, Liaoning, China.
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14
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DeLuca DS, Beisswanger E, Wermter J, Horn PA, Hahn U, Blasczyk R. MaHCO: an ontology of the major histocompatibility complex for immunoinformatic applications and text mining. ACTA ACUST UNITED AC 2009; 25:2064-70. [PMID: 19429601 DOI: 10.1093/bioinformatics/btp306] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
MOTIVATION The high level of polymorphism associated with the major histocompatibility complex (MHC) poses a challenge to organizing associated bioinformatic data, particularly in the area of hematopoietic stem cell transplantation. Thus, this area of research has great potential to profit from the ongoing development of biomedical ontologies, which offer structure and definition to MHC-data related communication and portability issues. RESULTS We introduce the design considerations, methodological foundations and implementational issues underlying MaHCO, an ontology which represents the alleles and encoded molecules of the major histocompatibility complex. Importantly for human immunogenetics, it includes a detailed level of human leukocyte antigen (HLA) classification. We then present an ontology browser, search interfaces for immunogenetic fact and document retrieval, and the specification of an annotation language for semantic metadata, based on MaHCO. These use cases are intended to demonstrate the utility of ontology-driven bioinformatics in the field of immunogenetics. AVAILABILITY AND IMPLEMENTATION The MaHCO Ontology is available via the BioPortal: http://www.bioontology.org/tools/portal/bioportal.html, and at: http://purl.org/stemnet/.
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Affiliation(s)
- David S DeLuca
- Institute for Transfusion Medicine, Hannover Medical School, Hannover, Germany.
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Holdsworth R, Hurley CK, Marsh SGE, Lau M, Noreen HJ, Kempenich JH, Setterholm M, Maiers M. The HLA dictionary 2008: a summary of HLA-A, -B, -C, -DRB1/3/4/5, and -DQB1 alleles and their association with serologically defined HLA-A, -B, -C, -DR, and -DQ antigens. ACTA ACUST UNITED AC 2009; 73:95-170. [DOI: 10.1111/j.1399-0039.2008.01183.x] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Mohanapriya A, Lulu S, Kayathri R, Kangueane P. Class II HLA-peptide binding prediction using structural principles. Hum Immunol 2009; 70:159-69. [PMID: 19187794 DOI: 10.1016/j.humimm.2008.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Revised: 12/05/2008] [Accepted: 12/05/2008] [Indexed: 10/21/2022]
Abstract
The precise prediction of class II human leukocyte antigen (HLA) peptide binding finds application in epitope design for the development of vaccines and diagnostics of diseases associated with CD4+ T-cellular immunity. HLA II binding peptides have an extended conformation at the binding groove unlike class I. This increases peptide binding combinations of varying length at the groove, having an eventual effect in the host immune response to infectious agents. Here we describe the development of a prediction model using information gleaned from HLA II-peptide (HLA II-p) structural data. We created a manually curated dataset of 15 HLA II-p structural complexes from Protein databank (PDB). The dataset was used to develop virtual binding pockets for accommodating HLA-II-specific short peptides. The binding of peptides to the virtual pockets is estimated using the Q matrix (a quantitative matrix based on amino acid residue properties). Internal cross-validation of the model using the 15 HLA II-p structural complexes produced an accuracy of 53% with a sensitivity of 53%. The model was further evaluated using a dataset of 3676 class II-specific peptides consisting of 1188 binders and 2488 nonbinders derived from MHCBN (a database of HLA binders and nonbinders). The model produced an accuracy of 53% with 70.8% specificity and 27.6% sensitivity. The positive predictive value (PPV) was 62% and the negative predictive value (NPV) 58%. A 62% PPV suggests that the model fairly predicts a good number of binders among predicted binders and thus that the success rate among predicted binder for further verification is good. The described model is simple and rapid, with large HLA allele coverage representing the sampled global population, despite weak prediction accuracy. The ability of the model to predict a wide array of defined class II alleles is found to be applicable for proteome-wide scanning of parasitic genomes.
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Affiliation(s)
- Arumugam Mohanapriya
- School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Tamil Nadu, India
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Cassinotti A, Birindelli S, Clerici M, Trabattoni D, Lazzaroni M, Ardizzone S, Colombo R, Rossi E, Porro GB. HLA and autoimmune digestive disease: a clinically oriented review for gastroenterologists. Am J Gastroenterol 2009; 104:195-217; quiz 194, 218. [PMID: 19098870 DOI: 10.1038/ajg.2008.10] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The human leukocyte antigen (HLA) system includes genes involved in graft-vs-host rejection and in immune response. The discovery that HLAs are associated with several diseases led to appealing developments both in basic biomedical research and in clinical medicine, and offered the opportunity to improve the understanding of pathogenesis and classification of diseases, as well as to provide diagnostic and prognostic indicators. The aim of this article is to review the association between HLA alleles and autoimmune digestive disease and its current relationship with modern HLA nomenclature and clinical practice. METHODS Articles dealing with the association between HLAs and autoimmune digestive disease (including celiac disease, inflammatory bowel disease, autoimmune hepatitis, sclerosing cholangitis and primary biliary cirrhosis) were searched for using Pubmed and SCOPUS databases from earliest records to January 2008. RESULTS The review has provided two sections. In the first, we explain the basic principles of HLA structure, function, and nomenclature, as an introduction to the second section, which describes current associations between HLA alleles and digestive diseases. The clinical implications of each HLA association are critically discussed. Actually, a clinical role for HLA typing is suggested for only a few conditions, e.g., celiac disease. CONCLUSIONS The knowledge of current HLA nomenclature and of its association with some digestive diseases such as celiac disease can be useful in clinical practice for diagnostic and prognostic purposes. This can avoid improper HLA typing as well as stressing the need for further studies on other possible clinical applications.
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Affiliation(s)
- Andrea Cassinotti
- Department of Clinical Science, Division of Gastroenterology, L. Sacco University Hospital, via G.B.Grassi 74, Milan, Italy.
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Whang DH, Yang YS, Hong HK. Allele and Haplotype Frequencies of Human Leukocyte Antigen-A, -B, and -DR Loci in Koreans: DNA Typing of 1,500 Cord Blood Units. Ann Lab Med 2008; 28:465-74. [DOI: 10.3343/kjlm.2008.28.6.465] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Dong Hee Whang
- Department of Laboratory Medicine, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Yun Sun Yang
- Biomedical Research Institute, MEDIPOST Co., Ltd, Seoul, Korea
| | - Hye Kyung Hong
- Biomedical Research Institute, MEDIPOST Co., Ltd, Seoul, Korea
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Spellman S, Setterholm M, Maiers M, Noreen H, Oudshoorn M, Fernandez-Viña M, Petersdorf E, Bray R, Hartzman RJ, Ng J, Hurley CK. Advances in the selection of HLA-compatible donors: refinements in HLA typing and matching over the first 20 years of the National Marrow Donor Program Registry. Biol Blood Marrow Transplant 2008; 14:37-44. [PMID: 18721779 DOI: 10.1016/j.bbmt.2008.05.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Accepted: 05/01/2008] [Indexed: 10/21/2022]
Affiliation(s)
- Stephen Spellman
- National Marrow Donor Program, Minneapolis, Minnesota 55413, USA.
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20
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Hoffman RW. T cells and the loss of immunologic tolerance in Sjögren's syndrome and systemic lupus erythematosus. ARTHRITIS AND RHEUMATISM 2007; 56:3180-2. [PMID: 17907162 DOI: 10.1002/art.22984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
This report describes the discovery and characterization of the HLA-Cw*0517 allele.
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Affiliation(s)
- R O Endres
- HLA Laboratory, Blood Systems Laboratories, Tempe, AZ 85282, USA.
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Doxiadis GGM, de Groot N, Claas FHJ, Doxiadis IIN, van Rood JJ, Bontrop RE. A highly divergent microsatellite facilitating fast and accurate DRB haplotyping in humans and rhesus macaques. Proc Natl Acad Sci U S A 2007; 104:8907-12. [PMID: 17502594 PMCID: PMC1868589 DOI: 10.1073/pnas.0702964104] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The DRB region of the MHC in primate species is known to display abundant region configuration polymorphism with regard to the number and content of genes present per haplotype. Furthermore, depending on the species studied, the different DRB genes themselves may display varying degrees of allelic polymorphism. Because of this combination of diversity (differential gene number) and polymorphism (allelic variation), molecular typing methods for the primate DRB region are cumbersome. All intact DRB genes present in humans and rhesus macaques appear to possess, however, a complex and highly divergent microsatellite. Microsatellite analysis of a sizeable panel of outbred rhesus macaques, covering most of the known Mamu-DRB haplotypes, resulted in the definition of unique genotyping patterns that appear to be specific for a given haplotype. Subsequent examination of a representative panel of human cells illustrated that this approach also facilitates high-resolution HLA-DRB typing in an easy, quick, and reproducible fashion. The genetic composition of this complex microsatellite is shown to be in concordance with the phylogenetic relationships of various HLA-DRB and Mamu-DRB exon 2 gene/lineage sequences. Moreover, its length variability segregates with allelic variation of the respective gene. This simple protocol may find application in a variety of research avenues such as transplantation biology, disease association studies, molecular ecology, paternity testing, and forensic medicine.
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Affiliation(s)
- Gaby G. M. Doxiadis
- Department of Comparative Genetics and Refinement, Biomedical Primate Research Centre, P.O. Box 3306, 2280 GH, Rijswijk, The Netherlands; and
- To whom correspondence may be addressed. E-mail: or
| | - Nanine de Groot
- Department of Comparative Genetics and Refinement, Biomedical Primate Research Centre, P.O. Box 3306, 2280 GH, Rijswijk, The Netherlands; and
| | - Frans H. J. Claas
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, E3-Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Ilias I. N. Doxiadis
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, E3-Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
| | - Jon J. van Rood
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, E3-Q, P.O. Box 9600, 2300 RC, Leiden, The Netherlands
- To whom correspondence may be addressed. E-mail: or
| | - Ronald E. Bontrop
- Department of Comparative Genetics and Refinement, Biomedical Primate Research Centre, P.O. Box 3306, 2280 GH, Rijswijk, The Netherlands; and
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Bochtler W, Maiers M, Oudshoorn M, Marsh SGE, Raffoux C, Mueller C, Hurley CK. World Marrow Donor Association guidelines for use of HLA nomenclature and its validation in the data exchange among hematopoietic stem cell donor registries and cord blood banks. Bone Marrow Transplant 2007; 39:737-41. [PMID: 17438587 DOI: 10.1038/sj.bmt.1705672] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Since the advent of the European Marrow Donor Information System in the first half of the last decade, fully automated data exchange between registry computer systems has been playing an ever-increasing role in the international search for unrelated donors of blood progenitor cells. This exchange, however, was hampered by different local conventions used to present HLA data and complicated by the need to extend the official WHO nomenclature to accommodate the registries' information systems and to cross-validate HLA data obtained with different methods and/or at different loci. The guidelines presented here have been developed by the World Marrow Donor Association to standardize the nomenclature to be used and the validation checks to be applied in the international electronic exchange of HLA-typing data among unrelated volunteer hematopoietic stem cell donor registries and umbilical cord blood banks. Two reference web sites have been designated to maintain and update the approved HLA nomenclature and all the ancillary information needed by the conventions described here.
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Affiliation(s)
- W Bochtler
- Information Technology and Quality Assurance Working Groups of the World Marrow Donor Association, Leiden, The Netherlands
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Chen Q, Zou H, Xu XH, Luo M, Wang J, Zuo YQ, Chen YH, Chen XH, Chen XL, Yao ZQ, Song N, Zeng J, Mi XY, Sun SX, Wang JX, Zhao TM. Characterization of HLA-B*5516, -B*1313, -B*9512, and -DRB1*1457 alleles identified in a southwest Chinese population. ACTA ACUST UNITED AC 2007; 68:339-43. [PMID: 17026471 DOI: 10.1111/j.1399-0039.2006.00669.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The human leukocyte antigen (HLA)-B*5516 allele differs from the B*5502 by a single 97 T --> C substitution (His to Tyr at position 33) in exon 2. The B*1313 allele results from 419 T --> A and 420 A --> C substitutions, encoding a Leu to Tyr substitution at 140 in exon 2 of the B*1301 allele. The B*9512 allele differs from B*1502 by a single 360 G --> C substitution (Gln to His at 120) in exon 3. The DRB1*1457 allele appears to be a hybrid molecule generated by recombination between the DRB1*13 and DRB1*14 alleles. The serological equivalents of these new alleles are HLA-B22, -B13, -B15, and DR13, respectively. Family studies detected two rare haplotypes: A*11, B*9512, DRB1*14 and A*24, B*52, Cw*07, DRB1*1457, DRB3*020201, DQB1*050301. The gene frequencies of these alleles in the Chinese population are less than 0.0001.
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Affiliation(s)
- Q Chen
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences, Chengdu, Sichuan, China.
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Wade JA, Hurley CK, Takemoto SK, Thompson J, Davies SM, Fuller TC, Rodey G, Confer DL, Noreen H, Haagenson M, Kan F, Klein J, Eapen M, Spellman S, Kollman C. HLA mismatching within or outside of cross-reactive groups (CREGs) is associated with similar outcomes after unrelated hematopoietic stem cell transplantation. Blood 2007; 109:4064-70. [PMID: 17202313 PMCID: PMC1874562 DOI: 10.1182/blood-2006-06-032193] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The National Marrow Donor Program maintains a registry of volunteer donors for patients in need of a hematopoietic stem cell transplantation. Strategies for selecting a partially HLA-mismatched donor vary when a full match cannot be identified. Some transplantation centers limit the selection of mismatched donors to those sharing mismatched antigens within HLA-A and HLA-B cross-reactive groups (CREGs). To assess whether an HLA mismatch within a CREG group ("minor") may result in better outcome than a mismatch outside CREG groups ("major"), we analyzed validated outcomes data from 2709 bone marrow and peripheral blood stem cell transplantations. Three-hundred and ninety-six pairs (15%) were HLA-DRB1 allele matched but had an antigen-level mismatch at HLA-A or HLA-B. Univariate and multivariate analyses of engraftment, graft-versus-host disease, and survival showed that outcome is not significantly different between minor and major mismatches (P = .47, from the log-rank test for Kaplan-Meier survival). However, HLA-A, HLA-B, and HLA-DRB1 allele-matched cases had significantly better outcome than mismatched cases (P < .001). For patients without an HLA match, the selection of a CREG-compatible donor as tested does not improve outcome.
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Affiliation(s)
- Judith A Wade
- Department of Surgery, University of Toronto, Ontario, Canada
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28
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Hurley CK, Fernandez-Vina M, Hildebrand WH, Noreen HJ, Trachtenberg E, Williams TM, Baxter-Lowe LA, Begovich AB, Petersdorf E, Selvakumar A, Stastny P, Hegland J, Hartzman RJ, Carston M, Gandham S, Kollman C, Nelson G, Spellman S, Setterholm M. A High Degree of HLA Disparity Arises From Limited Allelic Diversity: Analysis of 1775 Unrelated Bone Marrow Transplant Donor-Recipient Pairs. Hum Immunol 2007; 68:30-40. [PMID: 17207710 DOI: 10.1016/j.humimm.2006.09.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Revised: 09/12/2006] [Accepted: 09/28/2006] [Indexed: 11/27/2022]
Abstract
The allelic diversity and associated human leukocyte antigen (HLA) disparity of 1775 bone marrow recipients and their unrelated donors, matched for six of six (1361/1775,77%), five of six (397/1775, 22%), or four of six (17/1775, 1%) HLA-A, -B, -DR antigens, were retrospectively evaluated. The comprehensive HLA analysis included the class I (A, B, C) and II (DRB1, DQA1, DQB1, DPA1, DPB1) loci. Most (>66%) of the predominantly Caucasian study population carried one or two of five to seven common alleles at each HLA locus. In spite of this limited diversity, 29% of the six of six antigen-matched transplants carried allele mismatches at HLA-A, -B, and/or -DRB1, and 92% carried at least one allele mismatch at one of the eight HLA loci tested. Of the 968 HLA-A,-B,-DRB1 allele-matched pairs, 89% carried mismatches at other HLA loci, predominantly at DP loci. The substantially greater than expected HLA allelic disparity between donor and recipient suggests extensive haplotypic diversity and underscores the importance of enhancing approaches to mitigate the deleterious effect of HLA mismatches.
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29
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Abstract
The human leukocyte antigen (HLA) complex is located within the 6p21.3 region on the short arm of human chromosome 6 and contains more than 220 genes of diverse function. Many of the genes encode proteins of the immune system and include many highly polymorphic HLA genes. The naming of new HLA genes and allele sequences and their quality control is the responsibility of the WHO Nomenclature Committee for Factors of the HLA System. The IMGT/HLA Database acts as the repository for these sequences and is recognized as the primary source of up-to-date and accurate HLA sequences. The IMGT/HLA website provides a number of tools for accessing the database: these include allele reports, sequence alignments, and sequence similarity searches. The website is updated every 3 months with all the new and confirmatory sequences submitted to the WHO Nomenclature Committee. Submission of HLA sequences to the committee is possible through the tools provided by the IMGT/HLA Database.
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Chu CC, Chang HL, Chen ZS, Lee HL, Lin M. A novel HLA-B allele, B*5612, identified by sequence-based typing method. Int J Immunogenet 2006; 33:343-5. [PMID: 16984278 DOI: 10.1111/j.1744-313x.2006.00619.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
HLA-B*5612, found in Taiwan using sequence-based typing method, was identical to HLA-B*5502 in exon 2 but differed in exon 3 by 10 nucleotide substitutions at positions 353-420 leading to five amino acid change at codon 94, 95, 97, 103 and 116. As this sequence motif was not found in the Asian population, it is likely that HLA-B*5612 is the product of a complex mechanism of implying a dual gene conversion event.
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Affiliation(s)
- C-C Chu
- Transfusion Medicine Laboratory, Medical Research Department, Mackay Memorial Hospital, Taiwan
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31
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Xia Q, Zhou WM, Liang YH, Ge HS, Liu HS, Wang JY, Gao M, Yang S, Zhang XJ. MHC haplotypic association in Chinese Han patients with vitiligo. J Eur Acad Dermatol Venereol 2006; 20:941-6. [PMID: 16922942 DOI: 10.1111/j.1468-3083.2006.01686.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Serological typing of the human leucocyte antigen (HLA) has shown discrepancies in HLA associations with vitiligo in different ethnic populations. OBJECTIVE To evaluate the distributions of HLA at class I and II loci that may contribute to the genetic susceptibility of vitiligo patients in Chinese Hans population. METHODS We analysed the allelic frequencies of HLA class I and II by using the polymerase chain reaction sequence-specific primer (PCR-SSP) method in 187 patients with vitiligo and 273 controls in Chinese Hans. The linkage disequilibrium was calculated from a 2 x 2 table. RESULTS Two-locus haplotypes including HLA-A25-B13, HLA-A25-B27, HLA-A25-Cw*0602, HLA-A25-DQA1*0302, HLA-A25-DQA1*0601, HLA-A25-DQB1*0303, HLA-B13-Cw*0602, HLA-B13-DQA1*0302, HLA-B13-DQA1*0601, HLA-B27-Cw*0602, HLA-B27-DQA1*0302, HLA-B27-DQA1*0601, HLA-B27-DQB1*0303, HLA-B27-DQB1*0503, HLA-Cw*0602-DQA1*0302, HLA-Cw*0602-DQA1*0601, HLA-Cw*0602-DQB1*0303, HLA-Cw*0602-DQB1*0503 and HLA-DQA1*0302-DQB1*0503 were associated with all types of vitiligo in Chinese Hans. The extended haplotypes HLA-A25-B13-Cw*0602, HLA-A25-B27-Cw*0602, HLA-DQA1*0302-DQB1*0303-Cw*0602 and HLA-B13-DQB1*0303-Cw*0602 were found to be associated with all types of vitiligo in Chinese Hans, whereas the frequency of HLA-A25-Cw*0602-DQA1*0302 was significantly increased in generalized vitiligo but not in localized vitiligo. The frequencies of HLA-A25-DQA1*0302-DQB1*0503 and HLA-A30-DQA1*0302-DQB1*0303 were higher in childhood vitiligo than in adult vitiligo, and the frequency of HLA-A25-B13-DQB1*0303-Cw*0602 was shown to be associated with adult vitiligo but not childhood vitiligo. CONCLUSION This study demonstrates not only the differential association between HLA markers and types of vitiligo according to distribution or age at onset but also newly found high-risk haplotypes in Chinese vitiligo patients.
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Affiliation(s)
- Q Xia
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, China
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Ota M, Shimada K, Asamura H, Takayanagi K, Katsuyama Y, Fukushima H. Validation of sensitive human leukocyte antigen-sequence-specific primer and probe typing in forensic DNA examination. Leg Med (Tokyo) 2006; 8:203-9. [PMID: 16807046 DOI: 10.1016/j.legalmed.2006.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Revised: 03/07/2006] [Accepted: 03/08/2006] [Indexed: 11/30/2022]
Abstract
Validation studies were carried out with the commercially available HLA typing kit using a PCR-SPP (sequence-specific primer and probe) technique. This technique has made it possible to type class I (HLA-A and -B) and class II (HLA-DRB1 and -DQB1) alleles at low-resolution level with total 10 ng of template DNA, in addition to amplify directly from various forms of blood samples without DNA isolation procedure. Experimental examinations with bloodstains smeared on cotton cloth that were a week to 3 months old, bloodstains on gauze stored for 18 years, and buccal cells revealed that this HLA-SPP typing kit is a sensitive and reliable method for forensic investigations.
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Affiliation(s)
- Masao Ota
- Department of Legal Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan.
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Yan LX, Zhu FM, Lv QF, Zhang W, He J. Identification of a new allele, HLA-A*3308, in the Chinese population. ACTA ACUST UNITED AC 2006; 67:168-9. [PMID: 16441493 DOI: 10.1111/j.1399-0039.2006.00519.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L-X Yan
- HLA Typing Laboratory, Blood Center of Zhejiang Province, Hangzhou, Zhejiang Province 310006, China.
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Alaez C, Loyola M, Murguía A, Flores H, Rodríguez A, Ovilla R, Ignacio G, Amador R, Salinas V, Perez F, Rodríguez D, Morales Z, Llinguin G, Vazquez A, Altamirano A, Gorodezky C. Hematopoietic stem cell transplantation (HSCT): An approach to autoimmunity. Autoimmun Rev 2006; 5:167-79. [PMID: 16483916 DOI: 10.1016/j.autrev.2005.06.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2005] [Accepted: 06/06/2005] [Indexed: 11/17/2022]
Abstract
HSCT provides the opportunity to replace a damaged tissue. It is the most important treatment for high risk hematologic malignant and non malignant disorders. An important challenge in the identification of matched donors/patients is the HLA diversity. The Mexican Bone Marrow Registry (DONORMO) has nowadays > 5000 donors. The prevalent alleles are Amerindian, Mediterranean (Semitic and Spanish genes) and African. In theory, it is possible to find 11% of 6/6 A-B-DR low resolution matches for 70% of patients with Mexican ancestry. We contributed with 39 unrelated, cord blood and autologous HSCT for patients with malignant, genetic and autoimmune disorders. Overall disease survival was 50% (2-7 years) depending on the initial diagnosis, conditioning, disease evolution or other factors. Clinical studies using autologous and unrelated HSC are performed on patients with refractory autoimmune diseases producing mixed results: mainly, T1D, RA, MS, SLE. Improvement has been observed in skin damage and quality of life in SLE and systemic sclerosis. Disease stabilization in 2/3 of MS patients. However, in RA and T1D, initial benefits have been followed by eventual relapse. With growing clinical experience and protocol improvement, treatment-related mortality is decreasing. Proof efficacy will be achieved by comparing HSCT with standard therapy in autoimmunity.
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Affiliation(s)
- Carmen Alaez
- Department of Immunology and Immunogenetics, Instituto de Diagnóstico y Referencia Epidemiológicos-InDRE, Secretary of Health (SSA), Mexico City, Mexico
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Bendukidze N, Day S, Street J, Hammond L, Downing J, Corbin S, Dunn PPJ, Darke C. Identification of a novel HLA-A allele (A*1115) in the UK National External Quality Assessment Schemes for Histocompatibility and Immunogenetics' Educational Cell Exchange. ACTA ACUST UNITED AC 2006; 67:153-6. [PMID: 16441487 DOI: 10.1111/j.1399-0039.2006.00511.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The novel allele, HLA-A*1115, was identified in an 'Educational Scheme' sample (ED03/03 - from a north-western European Caucasoid blood donor) distributed by the UK National External Quality Assessment Schemes for Histocompatibility and Immunogenetics. ED03/03 was typed by serology, the polymerase chain reaction using sequence-specific primers and sequence-based typing. A*1115 is most similar to A*110101 with a single mismatch (G to C) at constant position 565, leading to a conservative amino acid change from valine (GTG) to leucine (CTG) at codon 165 in the alpha(2) domain. This substitution has not been reported for any other HLA class I allele so far. The HLA-A*1115-bearing haplotype was B*350101; Cw*040101; DRB1*140101; DRB3*020201; DQA1*010401; DQB1*0503; DPA1*0103/07; DPB1*030101. Extensive serological typing indicated that this allele essentially encodes a 'normal' HLA-A11 specificity.
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Affiliation(s)
- N Bendukidze
- H&I Department, National Blood Service, Bristol, UK.
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36
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Smith DM, Lunney JK, Ho CS, Martens GW, Ando A, Lee JH, Schook L, Renard C, Chardon P. Nomenclature for factors of the swine leukocyte antigen class II system, 2005. ACTA ACUST UNITED AC 2006; 66:623-39. [PMID: 16305679 DOI: 10.1111/j.1399-0039.2005.00492.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A systematic nomenclature for the genes and alleles of the swine major histocompatibility complex (MHC) is essential to the development and communication of research in swine immunology. The Swine Leukocyte Antigen (SLA) Nomenclature Committee of the International Society for Animal Genetics (ISAG) has reviewed all of the DNA-sequence information for MHC class II genes, available in GenBank/EMBL/DDBJ databases, and the associated published reports to develop such a systematic nomenclature. This article summarizes the proposed nomenclature, which parallels the World Health Organization's nomenclature for factors of the human MHC. The SLA class II genes expressed on the cell membrane will be noted as SLA-DRA, SLA-DRB1, SLA-DQA, and SLA-DQB1. Nomenclature assignments for all SLA class II GenBank sequences are now noted. The committee will add new SLA class II allele designations, as they are discovered, and will maintain a publicly available list of all recognized genes and alleles using the Immuno Polymorphism Database (IPD). The sequences will be available from the IPD-MHC section of the database which contains non-human MHC sequences (http://www.ebi.ac.uk/ipd/mhc/sla/).
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Affiliation(s)
- D M Smith
- Baylor University Medical Center, Dallas, TX, USA.
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Marsh SGE, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Geraghty DE, Hansen JA, Hurley CK, Mach B, Mayr WR, Parham P, Petersdorf EW, Sasazuki T, Schreuder GMT, Strominger JL, Svejgaard A, Terasaki PI, Trowsdale J. Nomenclature for factors of the HLA system, 2004. ACTA ACUST UNITED AC 2005; 65:301-69. [PMID: 15787720 DOI: 10.1111/j.1399-0039.2005.00379.x] [Citation(s) in RCA: 478] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Marsh SGE, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Geraghty DE, Hansen JA, Hurley CK, Mach B, Mayr WR, Parham P, Petersdorf EW, Sasazuki T, Schreuder GMT, Strominger JL, Svejgaard A, Terasaki PI, Trowsdale J. Nomenclature for Factors of the HLA System, 2004. Hum Immunol 2005; 66:571-636. [PMID: 15935895 DOI: 10.1016/j.humimm.2005.02.002] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Indexed: 10/25/2022]
Affiliation(s)
- Steven G E Marsh
- Anthony Nolan Research Institute, Royal Free Hospital, Pond Street, Hampstead, London NW3 2QG, United Kingdom.
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Marsh SGE, Albert ED, Bodmer WF, Bontrop RE, Dupont B, Erlich HA, Geraghty DE, Hansen JA, Hurley CK, Mach B, Mayr WR, Parham P, Petersdorf EW, Sasazuki T, Schreuder GMT, Strominger JL, Svejgaard A, Terasaki PI, Trowsdale J. Nomenclature for factors of the HLA system, 2004. Int J Immunogenet 2005; 32:107-59. [PMID: 15787643 DOI: 10.1111/j.1744-313x.2005.00509.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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