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Describing the Clinical and Laboratory Features and HLA-B Pattern of Adult-Onset Idiopathic Autoimmune Uveitis at a Tertiary Hospital in South India: A Cross-Sectional Study. ScientificWorldJournal 2022; 2022:5032881. [PMID: 35197811 PMCID: PMC8860532 DOI: 10.1155/2022/5032881] [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: 09/28/2021] [Accepted: 01/18/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction There is a scarcity of information available on clinical and laboratory features of adult-onset idiopathic autoimmune uveitis. Therefore, we conducted a single centre descriptive cross-sectional study. Patients and Methods. A chart review of all patients with idiopathic autoimmune uveitis with onset after 18 years of age who were referred to the rheumatology department between January 2017 and December 2018 was performed. Their clinical features, demographic features, and HLA-B genotypes were documented and described. Results Out of 210 patients referred to rheumatology, 66 were found to have uveitis, and 16 of these had an adult-onset idiopathic autoimmune uveitis. Apart from a slight female preponderance (62.5%), our patients were characterized by a high proportion of panuveitis (4 out of 16, i.e., 25%). There was an increased frequency of occurrence of synechiae (5 out of 16, i.e., 31.3%), retinal vasculitis (4 out of 16, i.e., 25%), optic disc edema (3 out of 16, i.e., 18.8%), and cystoid macular edema (seen in 2 patients, i.e., 12.5%). These features correlated with the anatomical subtypes. Retinal vasculitis and optic disc edema present in three fourth of all panuveitis cases were the most prominent features. The odds of finding HLA-B∗35 in retinal vasculitis were 33 times higher than odds of finding it in idiopathic autoimmune uveitis patients not having retinal vasculitis (OR 33; 95% CI 1.6–698). Conclusion Idiopathic autoimmune uveitis in our patients is characterized by a high frequency of panuveitis and retinal vasculitis, and complications with a probable association between HLA-B∗35 and retinal vasculitis.
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Andeen NK, Smith KD, Vasilescu ER, Batal I. The Authors Reply. Kidney Int Rep 2020; 5:1841. [PMID: 33102981 PMCID: PMC7569693 DOI: 10.1016/j.ekir.2020.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 11/25/2022] Open
Affiliation(s)
- Nicole K Andeen
- Department of Pathology, Oregon Health & Science University, Portland, Oregon, USA
| | - Kelly D Smith
- Department of Pathology, University of Washington, Seattle, Washington, USA
| | - Elena-Rodica Vasilescu
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Ibrahim Batal
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
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Balas A, Planelles D, Solves P, Roig R, Vicario JL. Genomic full-length analysis of the B*08:79 allele suggests exon shuffling involving the B*08:01:01 and B*07:06 alleles. ACTA ACUST UNITED AC 2012; 80:268-70. [DOI: 10.1111/j.1399-0039.2012.01918.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 05/21/2012] [Accepted: 06/04/2012] [Indexed: 11/29/2022]
Affiliation(s)
- A. Balas
- Histocompatibilidad; Centro de Transfusión de la Comunidad de Madrid; Madrid; Spain
| | - D. Planelles
- Histocompatibilidad; Centro de Transfusión de la Comunidad Valenciana; Valencia; Spain
| | - P. Solves
- Histocompatibilidad; Centro de Transfusión de la Comunidad Valenciana; Valencia; Spain
| | - R. Roig
- Histocompatibilidad; Centro de Transfusión de la Comunidad Valenciana; Valencia; Spain
| | - J. L. Vicario
- Histocompatibilidad; Centro de Transfusión de la Comunidad de Madrid; Madrid; Spain
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Buddaseth S, Müller K, Bade-Doeding C, Blasczyk R, Huyton T. The new allele HLA-B*35:87 was generated by recombination between HLA-B*35:01 and B*08:01 in intron 2. ACTA ACUST UNITED AC 2011; 79:211-2. [DOI: 10.1111/j.1399-0039.2011.01817.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
The B*3563 showed a hybrid sequence carrying B*4001-like sequence (exon 2) on B*350101 background.
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Affiliation(s)
- K W Lee
- Hallym Institution for Genome Application, College of Medicine, Hallym University, 896 Pyungchon-Dong, Anyang, Kyungki-Do 431-070, Korea.
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Lebedeva TV, Ohashi M, Huang A, Zannelli G, Yu N. A frame shift due to a two-nucleotide insertion results in an HLA-DRB1 null allele, DRB1*1517N. ACTA ACUST UNITED AC 2005; 66:334-5. [PMID: 16185335 DOI: 10.1111/j.1399-0039.2005.00472c.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- T V Lebedeva
- HLA Laboratory, American Red Cross Blood Services, New England Region, Dedham, MA 02026, USA.
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7
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Lee KW, Cho S. Identification of three novel HLA class I alleles: HLA-A*0261, HLA-B*1585 and HLA-B*1587. ACTA ACUST UNITED AC 2005; 65:493-6. [PMID: 15853906 DOI: 10.1111/j.1399-0039.2005.00391.x] [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] [Indexed: 11/27/2022]
Abstract
Three novel human leucocyte antigen (HLA) class I alleles have been characterized by means of direct DNA sequencing analysis. HLA-A* 0261 showed sequence variation at conserved codon. It differs from HLA-A* 020601 by a single-nucleotide substitution at codon 57 (CCG-->GCG) resulting in an amino acid change from Pro to Ala. The sequences of HLA-B*1585 are similar to those of HLA-B*15010101, but differed five nucleotides on exon 3 resulting in three amino acid changes at residues 94 (Thr-->Ile), 95 (Leu-->Ile) and 103 (Val-->Leu). Likewise, HLA-B*1587 is identical to HLA-B*15010101 except at codons 80-83 (Asn-Leu-Arg-Gly-->Ile-Ala-Leu-Arg) which has been replaced by HLA-Bw4 motif. These alleles seemed to be generated by either a point mutation or a gene conversion-like event from alleles existing in the population with high frequencies.
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Affiliation(s)
- K W Lee
- Hallym Institution for Genome Application, Hallym University, Sacred Heart Hospital, #896 Pyungchon-Dong, Dongan-Ku, Anyang, Kyungki-Do 431-070, Korea.
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Lebedeva TV, Huang A, Ohashi M, Sibilia P, Alosco SM, Kempenich J, Yu N. The recombinant HLA-B*5518 allele supports the evidence of conserved haplotype association of rare alleles. ACTA ACUST UNITED AC 2005; 66:156-9. [PMID: 16029440 DOI: 10.1111/j.1399-0039.2005.00442.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Allelic polymorphism of the major histocompatibility complex arises mostly from gene recombination. Intralocus gene recombination usually involves short fragments of DNA leading most commonly to single-nucleotide substitutions and rarely involves large fragments. Here, we report a new recombinant human leukocyte antigen (HLA)-B*5518 allele that has arisen via recombination of a large fragment of DNA spanning more than 70 nucleotides. During routine HLA typing of potential volunteer donors for the National Marrow Donor Program((R)), a new HLA-B allele was identified in two donors from Guam. The allele, B*5518, appears to be a product of recombination between B*5502 and B*40. Exons 1, 3, and 4 of the new allele belong to B*5502, whereas part of exon 2 belongs to one of B*40 alleles. Introns 1 and 2 appear to belong to B*55, suggesting that the recombination event may have occurred within the homologous parts of exon 2.
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Affiliation(s)
- T V Lebedeva
- HLA Laboratory, American Red Cross Blood Services, Dedham, MA 02026, USA. lebedevat@usa. redcross.org
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Lebedeva TV, Ohashi M, Huang A, Vasconcellos S, Alosco SM, Kempenich J, Yu N. HLA-Cw*1214 allele arisen via recombination between HLA-Cw*070201 and HLA-Cw*120201. TISSUE ANTIGENS 2004; 64:703-5. [PMID: 15546344 DOI: 10.1111/j.1399-0039.2004.00331.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Allelic polymorphism of the major histocompatibility complex arises mostly from gene conversion. Intralocus gene conversion usually involves limited fragments of DNA, whereas recombination involving large fragments of DNA is considered to be a rare event. During routine sequencing-based typing of donors for the National Marrow Donor Program, a new HLA-C allele was identified in a Caucasian donor. The allele, HLA-Cw*1214, proved to be the product of recombination between HLA-Cw*070201 and HLA-Cw*120201. Exons 1, 2, the 3' end of exon 3 and exon 4 (with one mismatch) belong to HLA-Cw*120201, whereas part of exon 3 belongs to HLA-Cw*070201. Sequencing with primers based in exon 2 and exon 3 showed that intron 2 of the new allele also belonged completely to HLA-Cw*1202. The recombination event apparently occurred within exon 3 with the first point of recombination somewhere between codons 92 and 134 and the second one between codons 157 and 181.
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Affiliation(s)
- T V Lebedeva
- HLA Laboratory, American Red Cross Blood Services, New England Region, Dedham, MA 02026, USA.
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Magira E, Beznik-Cizman B, Monos D. HLA-B*1559: a hybrid allele including exon 2 of HLA-B35 and exon 3 of HLA-B15 and serologically typed as B35. TISSUE ANTIGENS 2000; 56:460-2. [PMID: 11144297 DOI: 10.1034/j.1399-0039.2000.560512.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The new allele HLA-B*1559 described is of Hispanic origin. This allele carries the exon 2 of HLA-B*35 alleles, and is identical to HLA-B*3501 and the exon 3 of HLA-B*1530. Serologically it is typed as B35. The most likely scenario for its generation seems to be a gene conversion event that involved the, frequent in Hispanic populations, B*1522 allele and a B*1530 allele. A segment of the B*1530 allele that included at least the sequences 412-419 would be transferred on a B*1522 background.
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Affiliation(s)
- E Magira
- Department of Pediatrics, University of Pennsylvania School of Medicine and the Children's Hospital of Philadelphia, USA
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Abstract
Alleles in the HLA-B*15 group encode molecules belonging to several serologic subgroups, B15 (B62, B63, B75, B76, B77) and B70 (B71, B72), representing many of the most problematic types to assign in routine clinical typing laboratories due to their serologic cross-reactivity resulting from structural similarity. More than 25% of Koreans express HLA-B molecules encoded by the HLA-B*15 alleles. To further characterize HLA-B*15 in this population, B*15-specific polymerase chain reaction (PCR) and sequence-specific oligonucleotide probe (SSOP) hybridization analysis using 39 digoxigenin-labeled probes were applied to DNA samples obtained from 237 B15/B70 serologically positive unrelated individuals. Nine B*15 alleles were identified. B*1501 was the most frequent allele (64.8%) followed by B*1511 (14.1%), B*1507 (8.6%), and B*1518 (5.5%) comprising more than 90% of B*15-positive samples. B62 molecules encoded by 4 of the identified alleles (B*1501, B*1507, B*1525, and B*1527) could not be discriminated by serologic reaction patterns. Among the fifteen B15/B70 apparent homozygotes, eight were heterozygotes carrying two different B*15 alleles. Several B*15 alleles exhibited strong associations with specific Cw, DRB1, and A allelic types (e.g., B*1507-Cw3 (22/22); B*1507-DRB1*04 (21/22), B*1507-A24 (17/22)). The data obtained in this study confirmed B*15 diversity in the study population and will be useful in hematopoietic stem cell donor searches as well as in determining the supplementary DNA typing strategy for B15/B70-positive samples in this population.
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Affiliation(s)
- K W Lee
- Department of Clinical Pathology, College of Medicine, Hallym University, Seoul, Korea.
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Abstract
Twenty alleles encoding molecules with the B60 or B61 serologic specificity have been reported thus far. This study characterized a new allele encoding a molecule exhibiting partial serologic reactivity with B15- and B40-related alloantisera from unrelated Korean individuals. Based on the DNA sequence, it appears that the novel allele has a sequence identical to some of alleles in B*15 family including B*1501 in exon 2. The sequence in exon 3, however, is identical to alleles in the B*40 family (B*4001/07/10/12) and B*4803. This implies that the novel allele, B*4021, has evolved by a reciprocal gene recombination involving members of these two families. The haplotype associated with B*4021 is likely to be A11-Cw4-B*4021-DRB1*04-DRB4*01-DQA1*03-DQB1*0301 .
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Affiliation(s)
- K W Lee
- Department of Clinical Pathology, College of Medicine, Hallym University, Seoul, Korea.
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Ou D, Jonsen LA, Metzger DL, Tingle AJ. CD4+ and CD8+ T-cell clones from congenital rubella syndrome patients with IDDM recognize overlapping GAD65 protein epitopes. Implications for HLA class I and II allelic linkage to disease susceptibility. Hum Immunol 1999; 60:652-64. [PMID: 10439311 DOI: 10.1016/s0198-8859(99)00037-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
To fully characterize human glutamic acid decarboxylase (GAD)65 protein T-cell epitopes associated with insulin-dependent diabetes mellitus (IDDM), CTL clones specific to GAD65 protein antigens were isolated from two congenital rubella syndrome (CRS)-associated IDDM patients. Overlapping nonamer T-cell epitopes recognized by both CD4+ or CD8+ CTL clones within peptides GAD65(252-266) and GAD65(274-286) were identified as sequences bounded by GAD65(255-266) with 6/9 overlapping residues, and GAD65(276-285) with 8/9 overlapping residues, respectively, using two panels of overlapping peptide analogs in cytotoxicity assays. HLA restrictive elements of the T-cell clones were also identified using a panel of B cell lines with different HLA phenotypes as targets in cytotoxicity assays. The antigenic GAD65 peptides elicited cytotoxic responses of peptide-specific CD4+ T-cell clones in the context of HLA DRB1*0404. The CD8+ T-cell clone specific to GAD65(255-263) was found to be restricted by HLA A3 and A11. Similarly, the CD8+ T-cell clone specific to GAD65(277-285) killed peptide-sensitized target cells expressing HLA B35 and B15. The observed HLA restriction of these overlapping epitopes implies that a tandem of [DRB1*0404-A11(3)] and/or a tandem of [DRB1*0404-B35(15)] might predispose CRS patients to development of IDDM.
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Affiliation(s)
- D Ou
- Department of Paediatrics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
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Lee KW, Steiner N, Hurley CK. Characterization of an HLA-B62 variant (B*1538) exhibiting an additional B52 serologic reactivity. TISSUE ANTIGENS 1997; 50:662-4. [PMID: 9458123 DOI: 10.1111/j.1399-0039.1997.tb02928.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Antigens bearing the B62 serologic specificity are a heterogeneous group being encoded by at least 10 alleles and are widespread in most populations including the Korean population (10.5%). This study characterized a new allele encoding a B62 molecule with extra B52 serologic reactivity from a Korean family and unrelated individuals. Based on the DNA sequence, it appears that the single nucleotide substitution at codon 171 (TAC-->CAC), resulting in an amino acid change from tyrosine to histidine, is responsible for creating the extra reactivity. B*1538 was confirmed by PCR-SSP using a primer annealing to codon 171 in two additional unrelated individuals also exhibiting the same serologic reaction pattern. The haplotype associated with the novel allele, A31-B*1538-Bw6-Cw3-DRB1*1101-DRB3*02-DQB1*0301, was identified in the family members and two unrelated individuals. The novel B*1538 allele and its associated haplotype adds to the HLA diversity in this population.
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Affiliation(s)
- K W Lee
- Department of Clinical Pathology, College of Medicine, Hallym University, Seoul, Republic of Korea.
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Hurley CK, Schreuder GM, Marsh SG, Lau M, Middleton D, Noreen H. The search for HLA-matched donors: a summary of HLA-A*, -B*, -DRB1/3/4/5* alleles and their association with serologically defined HLA-A, -B, -DR antigens. TISSUE ANTIGENS 1997; 50:401-18. [PMID: 9349626 DOI: 10.1111/j.1399-0039.1997.tb02894.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This report summarizes data obtained from several large studies including the WHO HLA Nomenclature Committee, the International Cell Exchange, UCLA, the British Society for Histocompatibility and Immunogenetics Rare Cell Exchange and the National Marrow Donor Program and individual laboratories aimed at identifying a serologic type for specific HLA-A,-B,-DRB allelic products. Alleles that are poorly characterized at the serologic level are indicated and an approach is suggested for obtaining the information needed to clarify their serologic typing. The tables provided will be useful in guiding searches for an unrelated donor in which patient and/or potential donors are typed either by serology or by DNA-based methods and will provide a "dictionary" of potential equivalents between HLA "types" obtained by the two methods.
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Affiliation(s)
- C K Hurley
- Subcommittee of the Quality Assurance Working Group of the World Marrow Donor Association, Leiden, The Netherlands
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Bodmer JG, Marsh SG, Albert ED, Bodmer WF, Bontrop RE, Charron D, Dupont B, Erlich HA, Fauchet R, Mach B, Mayr WR, Parham P, Sasazuki T, Schreuder GM, Strominger JL, Svejgaard A, Terasaki PI. Nomenclature for factors of the HLA System, 1996. Hum Immunol 1997; 53:98-128. [PMID: 9127153 DOI: 10.1016/s0198-8859(97)00031-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- J G Bodmer
- ICRF Cancer and Immunogenetics Laboratory, Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, United Kingdom
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Bodmer JG, Marsh SG, Albert ED, Bodmer WF, Bontrop RE, Charron D, Dupont B, Erlich HA, Fauchet R, Mach B, Mayr WR, Parham P, Sasazuki T, Schreuder GM, Strominger JL, Svejgaard A, Terasaki PI. Nomenclature for factors of the HLA system, 1996. TISSUE ANTIGENS 1997; 49:297-321. [PMID: 9098945 DOI: 10.1111/j.1399-0039.1997.tb02759.x] [Citation(s) in RCA: 257] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- J G Bodmer
- ICRF Cancer and Immunogenetics Laboratory, Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, United Kingdom.
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