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Stelet VN, Romero M, Cita RF, Binato R, Abdelhay E. A novel HLA-C*02:10 variant, HLA-C*02:10:09, identified in a healthy individual from Brazil. HLA 2024; 103:e15410. [PMID: 38372615 DOI: 10.1111/tan.15410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/03/2024] [Accepted: 02/06/2024] [Indexed: 02/20/2024]
Abstract
Identification of the novel HLA-C*02:10:09 allele that differs from HLA-C*02:10:01:01 at one position in exon 1.
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Affiliation(s)
- Vinícius N Stelet
- Immunogenetics Laboratory, National Cancer Institute, Rio de Janeiro, Brazil
| | - Matilde Romero
- Immunogenetics Laboratory, National Cancer Institute, Rio de Janeiro, Brazil
| | - Rafael F Cita
- Transplant Immunology Laboratory, Pio XII Foundation, Barretos, Brazil
| | - Renata Binato
- Immunogenetics Laboratory, National Cancer Institute, Rio de Janeiro, Brazil
| | - Eliana Abdelhay
- Immunogenetics Laboratory, National Cancer Institute, Rio de Janeiro, Brazil
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Schellens IM, Meiring HD, Hoof I, Spijkers SN, Poelen MCM, van Gaans-van den Brink JAM, Costa AI, Vennema H, Keşmir C, van Baarle D, van Els CACM. Measles Virus Epitope Presentation by HLA: Novel Insights into Epitope Selection, Dominance, and Microvariation. Front Immunol 2015; 6:546. [PMID: 26579122 PMCID: PMC4629467 DOI: 10.3389/fimmu.2015.00546] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 10/12/2015] [Indexed: 01/13/2023] Open
Abstract
Immunity to infections with measles virus (MV) can involve vigorous human leukocyte antigen (HLA) class I-restricted CD8+ cytotoxic T cell (CTL) responses. MV, albeit regarded monotypic, is known to undergo molecular evolution across its RNA genome. To address which regions of the MV proteome are eligible for recognition by CD8+ CTLs and how different HLA class I loci contribute to the epitope display, we interrogated the naturally processed and presented MV peptidome extracted from cell lines expressing in total a broad panel of 16 different common HLA-A, -B, and -C molecules. The repertoire and abundance of MV peptides were bona fide identified by nanoHPLC–MS/MS. Eighty-nine MV peptides were discovered and assignment to an HLA-A, -B, or -C allele, based on HLA-peptide affinity prediction, was in most cases successful. Length variation and presentation by multiple HLA class I molecules was common in the MV peptidome. More than twice as many unique MV epitopes were found to be restricted by HLA-B than by HLA-A, while MV peptides with supra-abundant expression rates (>5,000 cc) were rather associated with HLA-A and HLA-C. In total, 59 regions across the whole MV proteome were identified as targeted by HLA class I. Sequence coverage by epitopes was highest for internal proteins transcribed from the MV-P/V/C and -M genes and for hemagglutinin. At the genome level, the majority of the HLA class I-selected MV epitopes represented codons having a higher non-synonymous mutation rate than silent mutation rate, as established by comparison of a set of 58 unique full length MV genomes. Interestingly, more molecular variation was seen for the epitopes expressed at rates ≥1,000 cc. These data for the first time indicate that HLA class I broadly samples the MV proteome and that CTL pressure may contribute to the genomic evolution of MV.
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Affiliation(s)
- Ingrid M Schellens
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment , Bilthoven , Netherlands ; Laboratory of Translational Immunology, Department of Immunology, University Medical Center Utrecht , Utrecht , Netherlands ; Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht , Utrecht , Netherlands
| | - Hugo D Meiring
- Institute for Translational Vaccinology , Bilthoven , Netherlands
| | - Ilka Hoof
- Theoretical Biology and Bioinformatics, Utrecht University , Utrecht , Netherlands
| | - Sanne N Spijkers
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment , Bilthoven , Netherlands ; Laboratory of Translational Immunology, Department of Immunology, University Medical Center Utrecht , Utrecht , Netherlands ; Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht , Utrecht , Netherlands
| | - Martien C M Poelen
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment , Bilthoven , Netherlands
| | | | - Ana I Costa
- Laboratory of Translational Immunology, Department of Immunology, University Medical Center Utrecht , Utrecht , Netherlands ; Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht , Utrecht , Netherlands
| | - Harry Vennema
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment , Bilthoven , Netherlands
| | - Can Keşmir
- Theoretical Biology and Bioinformatics, Utrecht University , Utrecht , Netherlands
| | - Debbie van Baarle
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment , Bilthoven , Netherlands ; Laboratory of Translational Immunology, Department of Immunology, University Medical Center Utrecht , Utrecht , Netherlands ; Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht , Utrecht , Netherlands
| | - Cécile A C M van Els
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment , Bilthoven , Netherlands
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