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Wennink RAW, de Boer JH, Hiddingh S, Haasnoot AMJW, Kalinina Ayuso V, de Hoop T, van Setten J, Spierings E, Kuiper JJW. Next-Generation HLA Sequence Analysis Uncovers Shared Risk Alleles Between Clinically Distinct Forms of Childhood Uveitis. Invest Ophthalmol Vis Sci 2021; 62:19. [PMID: 34254975 PMCID: PMC8287043 DOI: 10.1167/iovs.62.9.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Purpose Classical alleles of the human leukocyte antigen (HLA) complex have been linked to specific entities of pediatric noninfectious uveitis, yet genetic predisposition encoded by the HLA super-locus across the patient population remains understudied. Methods We performed next-generation full-length sequencing of HLA-A, HLA-B, HLA-C, HLA-DPB1, HLA-DQB1, and HLA-DRB1 in 280 cases. Dense genotype data from 499 Dutch controls from Genome of the Netherlands were imputed using an HLA-specific reference panel (n = 5225 samples from European ancestry). Cases and controls were compared using logistic regression models adjusting for sex. Results In total, 179 common and rare alleles were detected. Considering all cases and controls, HLA-DQB1*04:02 and HLA-DRB1*08:01 were identified as the principal HLA association, which was mainly driven by 92 cases with juvenile idiopathic arthritis-associated uveitis (JIA-U). The HLA-DQB1*04:02-HLA-DRB1*08:01 haplotype was also the primary association for the phenotypically similar idiopathic chronic anterior uveitis without arthritis (CAU). Also, HLA-DQB1*05:03 was an independent risk allele for CAU, but not in JIA-U. Analysis of 185 cases with other forms of uveitis revealed HLA-wide associations (P < 2.79 × 10−4) for HLA-DRB1*01:02, HLA-DRB1*04:03, and HLA-DQB1*05:03, which could be primarily attributed to cases with panuveitis. Finally, amino acid substitution modeling revealed that aspartic acid at position 57 that distinguishes the risk allele HLA-DQB1*05:03 (for CAU and panuveitis) from nonrisk alleles, significantly increased the binding capacity of naturally presented ligands to HLA-DQ. Conclusions These results uncovered novel shared HLA associations among clinically distinct phenotypes of pediatric uveitis and highlight genetic predisposition affecting the antigen presentation pathway.
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Affiliation(s)
- Roos A W Wennink
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands.,Center of Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Joke H de Boer
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Sanne Hiddingh
- Center of Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Anne-Mieke J W Haasnoot
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Viera Kalinina Ayuso
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Talitha de Hoop
- Center of Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Jessica van Setten
- Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Eric Spierings
- Center of Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Jonas J W Kuiper
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands.,Center of Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
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2
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Pinazo-Durán MD, García-Medina JJ, Sanz-González SM, O’Connor JE, Casaroli-Marano RP, Valero-Velló M, López-Gálvez M, Peris-Martínez C, Zanón-Moreno V, Diaz-Llopis M. Signature of Circulating Biomarkers in Recurrent Non-Infectious Anterior Uveitis. Immunomodulatory Effects of DHA-Triglyceride. A Pilot Study. Diagnostics (Basel) 2021; 11:724. [PMID: 33921773 PMCID: PMC8072877 DOI: 10.3390/diagnostics11040724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 12/11/2022] Open
Abstract
The purpose of this study was to identify circulating biomarkers of recurrent non-infectious anterior uveitis (NIAU), and to address the anti-inflammatory effects of triglyceride containing docosahexaenoic acid (DHA-TG). A prospective multicenter study was conducted in 72 participants distributed into: patients diagnosed with recurrent NIAU in the quiescence stage (uveitis group (UG); n = 36) and healthy controls (control group (CG); n = 36). Each group was randomly assigned to the oral supplementation of one pill/day (+) containing DHA-TG (n = 18) or no-pill condition (-) (n = 17) for three consecutive months. Data from demographics, risk factors, comorbidities, eye complications and therapy were recorded. Blood was collected and processed to determine pro-inflammatory biomarkers by bead-base multiplex assay. Statistical processing with multivariate statistical analysis was performed. The mean age was 50, 12 (10, 31) years. The distribution by gender was 45% males and 55% females. The mean number of uveitis episodes was 5 (2). Higher plasma expression of interleukin (IL)-6 was detected in the UG versus the CG (p = 5 × 10-5). Likewise, significantly higher plasma levels were seen for IL-1β, IL-2, INFγ (p = 10-4), and TNFα (p = 2 × 10-4) in the UG versus the CG. Significantly lower values of the above molecules were found in the +DHA-TG than in the -DHA-TG subgroups, after 3 months of follow-up, TNFα (p = 10-7) and IL-6 (p = 3 × 10-6) being those that most significantly changed. Signatures of circulating inflammatory mediators were obtained in the quiescent stage of recurrent NIAU patients. This 3-month follow-up strongly reinforces that a regular oral administration of DHA-TG reduces the inflammatory load and may potentially supply a prophylaxis-adjunctive mediator for patients at risk of uveitis vision loss.
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Affiliation(s)
- Maria D. Pinazo-Durán
- Ophthalmic Research Unit “Santiago Grisolía”, Fundación Investigación Sanitaria y Biomédica (FISABIO), Ave. Gaspar Aguilar 90, 46017 Valencia, Spain; (M.D.P.-D.); (J.J.G.-M.); (M.V.-V.)
- Research Group in Cellular and Molecular Ophthalmo-Biology, Department of Surgery, University of Valencia, Ave. Blasco Ibañez 15, 46010 Valencia, Spain;
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
| | - Jose J. García-Medina
- Ophthalmic Research Unit “Santiago Grisolía”, Fundación Investigación Sanitaria y Biomédica (FISABIO), Ave. Gaspar Aguilar 90, 46017 Valencia, Spain; (M.D.P.-D.); (J.J.G.-M.); (M.V.-V.)
- Research Group in Cellular and Molecular Ophthalmo-Biology, Department of Surgery, University of Valencia, Ave. Blasco Ibañez 15, 46010 Valencia, Spain;
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
- Department of Ophthalmology, General University Hospital “Morales Meseguer”, Ave. Marqués de los Vélez, s/n, 30008 Murcia, Spain
- Department of Ophthalmology and Optometry, University of Murcia, Edificio LAIB Planta 5ª, Carretera Buenavista s/n, 30120 El Palmar Murcia, Spain
| | - Silvia M. Sanz-González
- Ophthalmic Research Unit “Santiago Grisolía”, Fundación Investigación Sanitaria y Biomédica (FISABIO), Ave. Gaspar Aguilar 90, 46017 Valencia, Spain; (M.D.P.-D.); (J.J.G.-M.); (M.V.-V.)
- Research Group in Cellular and Molecular Ophthalmo-Biology, Department of Surgery, University of Valencia, Ave. Blasco Ibañez 15, 46010 Valencia, Spain;
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
| | - Jose E. O’Connor
- Laboratory of Cytomics, Joint Research Unit Principe Felipe Research Center and University of Valencia, 46010 Valencia, Spain;
| | - Ricardo P. Casaroli-Marano
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
- Department of Surgery, School of Medicine and Hospital Clinic de Barcelona, University of Barcelona, 08036 Barcelona, Spain
| | - Mar Valero-Velló
- Ophthalmic Research Unit “Santiago Grisolía”, Fundación Investigación Sanitaria y Biomédica (FISABIO), Ave. Gaspar Aguilar 90, 46017 Valencia, Spain; (M.D.P.-D.); (J.J.G.-M.); (M.V.-V.)
- Research Group in Cellular and Molecular Ophthalmo-Biology, Department of Surgery, University of Valencia, Ave. Blasco Ibañez 15, 46010 Valencia, Spain;
| | - Maribel López-Gálvez
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
- Department of Ophthalmology, University Clinic Hospital of Valladolid, 47003 Valladolid, Spain
| | - Cristina Peris-Martínez
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
- Ophthalmic Medical Center (FOM), Foundation for the Promotion of Health and Biomedical Research of Valencia (FISABIO), 46015 Valencia, Spain
| | - Vicente Zanón-Moreno
- Spanish Net of Ophthalmic Research “OFTARED” RD16/0008/0022, of the Institute of Health Carlos III, 28029 Madrid, Spain; (R.P.C.-M.); (M.L.-G.); (C.P.-M.); (V.Z.-M.)
- Faculty of Health Sciences, Valencian International University, 46002 Valencia, Spain
| | - Manuel Diaz-Llopis
- Research Group in Cellular and Molecular Ophthalmo-Biology, Department of Surgery, University of Valencia, Ave. Blasco Ibañez 15, 46010 Valencia, Spain;
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3
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van Dijk EHC, Boon CJF. Serous business: Delineating the broad spectrum of diseases with subretinal fluid in the macula. Prog Retin Eye Res 2021; 84:100955. [PMID: 33716160 DOI: 10.1016/j.preteyeres.2021.100955] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/14/2021] [Accepted: 02/19/2021] [Indexed: 02/08/2023]
Abstract
A wide range of ocular diseases can present with serous subretinal fluid in the macula and therefore clinically mimic central serous chorioretinopathy (CSC). In this manuscript, we categorise the diseases and conditions that are part of the differential diagnosis into 12 main pathogenic subgroups: neovascular diseases, vitelliform lesions, inflammatory diseases, ocular tumours, haematological malignancies, paraneoplastic syndromes, genetic diseases, ocular developmental anomalies, medication-related conditions and toxicity-related diseases, rhegmatogenous retinal detachment and tractional retinal detachment, retinal vascular diseases, and miscellaneous diseases. In addition, we describe 2 new clinical pictures associated with macular subretinal fluid accumulation, namely serous maculopathy with absence of retinal pigment epithelium (SMARPE) and serous maculopathy due to aspecific choroidopathy (SMACH). Differentiating between these various diseases and CSC can be challenging, and obtaining the correct diagnosis can have immediate therapeutic and prognostic consequences. Here, we describe the key differential diagnostic features of each disease within this clinical spectrum, including representative case examples. Moreover, we discuss the pathogenesis of each disease in order to facilitate the differentiation from typical CSC.
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Affiliation(s)
- Elon H C van Dijk
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Camiel J F Boon
- Department of Ophthalmology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands; Department of Ophthalmology, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
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4
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Venema WJ, Hiddingh S, de Boer JH, Claas FHJ, Mulder A, den Hollander AI, Stratikos E, Sarkizova S, van der Veken LT, Janssen GMC, van Veelen PA, Kuiper JJW. ERAP2 Increases the Abundance of a Peptide Submotif Highly Selective for the Birdshot Uveitis-Associated HLA-A29. Front Immunol 2021; 12:634441. [PMID: 33717175 PMCID: PMC7950316 DOI: 10.3389/fimmu.2021.634441] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/12/2021] [Indexed: 11/13/2022] Open
Abstract
Birdshot Uveitis (BU) is a blinding inflammatory eye condition that only affects HLA-A29-positive individuals. Genetic association studies linked ERAP2 with BU, an aminopeptidase which trims peptides before their presentation by HLA class I at the cell surface, which suggests that ERAP2-dependent peptide presentation by HLA-A29 drives the pathogenesis of BU. However, it remains poorly understood whether the effects of ERAP2 on the HLA-A29 peptidome are distinct from its effect on other HLA allotypes. To address this, we focused on the effects of ERAP2 on the immunopeptidome in patient-derived antigen presenting cells. Using complementary HLA-A29-based and pan-class I immunopurifications, isotope-labeled naturally processed and presented HLA-bound peptides were sequenced by mass spectrometry. We show that the effects of ERAP2 on the N-terminus of ligands of HLA-A29 are shared across endogenous HLA allotypes, but discover and replicate that one peptide motif generated in the presence of ERAP2 is specifically bound by HLA-A29. This motif can be found in the amino acid sequence of putative autoantigens. We further show evidence for internal sequence specificity for ERAP2 imprinted in the immunopeptidome. These results reveal that ERAP2 can generate an HLA-A29-specific antigen repertoire, which supports that antigen presentation is a key disease pathway in BU.
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Affiliation(s)
- Wouter J Venema
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Sanne Hiddingh
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Joke H de Boer
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Frans H J Claas
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Arend Mulder
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Anneke I den Hollander
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, Netherlands.,Department of Human Genetics, Radboud University Medical Center, Nijmegen, Netherlands
| | - Efstratios Stratikos
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Greece
| | - Siranush Sarkizova
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, United States.,Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Lars T van der Veken
- Division Laboratories, Pharmacy and Biomedical Genetics, Department of Genetics, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - George M C Janssen
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Peter A van Veelen
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands
| | - Jonas J W Kuiper
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands.,Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
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5
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Kuiper JJW, Venema WJ. HLA-A29 and Birdshot Uveitis: Further Down the Rabbit Hole. Front Immunol 2020; 11:599558. [PMID: 33262772 PMCID: PMC7687429 DOI: 10.3389/fimmu.2020.599558] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/16/2020] [Indexed: 12/26/2022] Open
Abstract
HLA class I alleles constitute established risk factors for non-infectious uveitis and preemptive genotyping of HLA class I alleles is standard practice in the diagnostic work-up. The HLA-A29 serotype is indispensable to Birdshot Uveitis (BU) and renders this enigmatic eye condition a unique model to better understand how the antigen processing and presentation machinery contributes to non-infectious uveitis or chronic inflammatory conditions in general. This review will discuss salient points regarding the protein structure of HLA-A29 and how key amino acid positions impact the peptide binding preference and interaction with T cells. We discuss to what extent the risk genes ERAP1 and ERAP2 uniquely affect HLA-A29 and how the discovery of a HLA-A29-specific submotif may impact autoantigen discovery. We further provide a compelling argument to solve the long-standing question why BU only affects HLA-A29-positive individuals from Western-European ancestry by exploiting data from the 1000 Genomes Project. We combine novel insights from structural and immunopeptidomic studies and discuss the functional implications of genetic associations across the HLA class I antigen presentation pathway to refine the etiological basis of Birdshot Uveitis.
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Affiliation(s)
- Jonas J. W. Kuiper
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Wouter J. Venema
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
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6
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Rytkönen S, Ritari J, Peräsaari J, Saarela V, Nuutinen M, Jahnukainen T. IL-10 polymorphisms +434T/C, +504G/T, and -2849C/T may predispose to tubulointersititial nephritis and uveitis in pediatric population. PLoS One 2019; 14:e0211915. [PMID: 30779760 PMCID: PMC6380573 DOI: 10.1371/journal.pone.0211915] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 01/22/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Tubulointerstitial nephritis (TIN) and uveitis syndrome (TINU) are likely to be autoimmune diseases. Based on previous studies, adults with isolated idiopathic uveitis have polymorphisms in interleukin 10 (IL-10) and tumor necrosis factor α (TNF-α) genes. We aimed to evaluate the presence of IL-10 and TNF-α polymorphisms in a nationwide cohort of pediatric TIN/TINU patients. METHODS Single nucleotide polymorphisms in IL-10 (+434T/C, +504G/T, -1082G/A, -2849C/T) and in TNFα (-308G/A, -238G/A, -857C/T) genes were genotyped in 30 well-defined pediatric patients with idiopathic TIN/TINU syndrome. Control group frequencies for these SNPs were obtained from 393 independent Finnish subjects. RESULTS The homozygous minor allele in IL-10 +434T (rs2222202) and IL-10+504G (rs3024490) was found in all patients with TIN or TINU syndrome while the frequency of these minor alleles in the control population was 44% and 23%, respectively (p <0.001). In IL-10 SNP -2849 (rs6703630) a significant difference was found with genotype TT in all patients (p = 0.004) and in subgroups with TINU syndrome (p = 0.017) and TINU syndrome with chronic uveitis (p = 0.01) compared to reference population. There were no statistical differences in any of the studied TNF-α genotypes between TIN/TINU patients and control population. CONCLUSIONS A significant difference in the frequency of IL-10+434T and +504G alleles was found between TIN/TINU patients and control population. Genotype -2849TT was more frequently present in patients with TINU syndrome than in the reference subjects. Genetic variation in the inflammatory mediators may predispose to autoimmune nephritis and uveitis.
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Affiliation(s)
- Sari Rytkönen
- PEDEGO Research Unit and Medical Research Center (MRC), University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Jarmo Ritari
- Clinical Laboratory, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Juha Peräsaari
- Clinical Laboratory, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Ville Saarela
- Ville Saarela, Department of Ophthalmology, Oulu University Hospital, Finland
| | - Matti Nuutinen
- PEDEGO Research Unit and Medical Research Center (MRC), University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Timo Jahnukainen
- Timo Jahnukainen, Department of Pediatric Nephrology and Transplantation, New Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- * E-mail:
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7
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Kuiper JJW, van Setten J, Devall M, Cretu-Stancu M, Hiddingh S, Ophoff RA, Missotten TOAR, van Velthoven M, Den Hollander AI, Hoyng CB, James E, Reeves E, Cordero-Coma M, Fonollosa A, Adán A, Martín J, Koeleman BPC, de Boer JH, Pulit SL, Márquez A, Radstake TRDJ. Functionally distinct ERAP1 and ERAP2 are a hallmark of HLA-A29-(Birdshot) Uveitis. Hum Mol Genet 2018; 27:4333-4343. [PMID: 30215709 PMCID: PMC6276832 DOI: 10.1093/hmg/ddy319] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/12/2022] Open
Abstract
Birdshot Uveitis (Birdshot) is a rare eye condition that affects HLA-A29-positive individuals and could be considered a prototypic member of the recently proposed 'MHC-I (major histocompatibility complex class I)-opathy' family. Genetic studies have pinpointed the endoplasmic reticulum aminopeptidase (ERAP1) and (ERAP2) genes as shared associations across MHC-I-opathies, which suggests ERAP dysfunction may be a root cause for MHC-I-opathies. We mapped the ERAP1 and ERAP2 haplotypes in 84 Dutch cases and 890 controls. We identified association at variant rs10044354, which mediated a marked increase in ERAP2 expression. We also identified and cloned an independently associated ERAP1 haplotype (tagged by rs2287987) present in more than half of the cases; this ERAP1 haplotype is also the primary risk and protective haplotype for other MHC-I-opathies. We show that the risk ERAP1 haplotype conferred significantly altered expression of ERAP1 isoforms in transcriptomic data (n = 360), resulting in lowered protein expression and distinct enzymatic activity. Both the association for rs10044354 (meta-analysis: odds ratio (OR) [95% CI]=2.07[1.58-2.71], P = 1.24 × 10(-7)) and rs2287987 (OR[95% CI]: =2.01[1.51-2.67], P = 1.41 × 10(-6)) replicated and showed consistent direction of effect in an independent Spanish cohort of 46 cases and 2103 controls. In both cohorts, the combined rs2287987-rs10044354 haplotype associated with Birdshot more strongly than either variant alone [meta-analysis: P=3.9 × 10(-9)]. Finally, we observed that ERAP2 protein expression is dependent on the ERAP1 background across three European populations (n = 3353). In conclusion, a functionally distinct combination of ERAP1 and ERAP2 are a hallmark of Birdshot and provide rationale for strategies designed to correct ERAP function for treatment of Birdshot and MHC-I-opathies more broadly.
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Affiliation(s)
- Jonas J W Kuiper
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
- Laboratory of Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Jessica van Setten
- Department of Cardiology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Matthew Devall
- Laboratory of Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Mircea Cretu-Stancu
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Sanne Hiddingh
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
- Laboratory of Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Roel A Ophoff
- Department of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA, USA
| | | | | | - Anneke I Den Hollander
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, Netherlands
| | - Carel B Hoyng
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Edward James
- Centre for Cancer Immunology, Faculty of Medicine, University Hospital Southampton, Southampton, UK
| | - Emma Reeves
- Centre for Cancer Immunology, Faculty of Medicine, University Hospital Southampton, Southampton, UK
| | - Miguel Cordero-Coma
- Ophthalmology Department, Hospital de León, IBIOMED, Universidad de León, León, Spain
| | - Alejandro Fonollosa
- Ophthalmology Department, BioCruces Health Research Institute, Hospital Universitario Cruces, Barakaldo, Spain
| | - Alfredo Adán
- Ophthalmology Department, Hospital Clinic, Barcelona, Spain
| | - Javier Martín
- Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Granada Spain
| | - Bobby P C Koeleman
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Joke H de Boer
- Department of Ophthalmology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
| | - Sara L Pulit
- Department of Genetics, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
- Centre for Health Information and Discovery, Big Data Institute, Oxford University, Oxford, UK
| | - Ana Márquez
- Systemic Autoimmune Disease Unit, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada, Granada Spain
| | - Timothy R D J Radstake
- Laboratory of Translational Immunology, University Medical Center Utrecht, University of Utrecht, Utrecht, Netherlands
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
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8
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Haasnoot AMJW, Schilham MW, Kamphuis S, Hissink Muller PCE, Heiligenhaus A, Foell D, Minden K, Ophoff RA, Radstake TRDJ, Den Hollander AI, Reinards THCM, Hiddingh S, Schalij-Delfos NE, Hoppenreijs EPAH, van Rossum MAJ, Wouters C, Saurenmann RK, van den Berg JM, Wulffraat NM, ten Cate R, de Boer JH, Pulit SL, Kuiper JJW. Identification of an Amino Acid Motif in HLA-DRβ1 That Distinguishes Uveitis in Patients With Juvenile Idiopathic Arthritis. Arthritis Rheumatol 2018. [DOI: 10.1002/art.40484] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | | | - Sylvia Kamphuis
- Sophia Children's Hospital, Erasmus University Medical Center; Rotterdam The Netherlands
| | | | - Arnd Heiligenhaus
- St. Franziskus-Hospital, Muenster, Germany, and University of Duisburg; Essen Germany
| | - Dirk Foell
- University of Muenster; Muenster Germany
| | - Kirsten Minden
- German Rheumatism Research Center Berlin-Leibniz Institute and Charite University Medicine; Berlin Germany
| | - Roel A. Ophoff
- University Medical Center Utrecht, Utrecht, The Netherlands, and University of California; Los Angeles
| | | | | | | | - Sanne Hiddingh
- University Medical Center Utrecht, Utrecht University; Utrecht The Netherlands
| | | | | | - Marion A. J. van Rossum
- Emma Children's Hospital AMC and Amsterdam Rheumatology and Immunology Center Reade; Amsterdam The Netherlands
| | - Carine Wouters
- University of Leuven and University Hospitals Leuven; Leuven Belgium
| | | | | | - Nico M. Wulffraat
- University Medical Center Utrecht, Utrecht University; Utrecht The Netherlands
| | | | - Joke H. de Boer
- University Medical Center Utrecht, Utrecht University; Utrecht The Netherlands
| | - Sara L. Pulit
- University Medical Center Utrecht, Utrecht, The Netherlands, and Oxford University; Oxford UK
| | - Jonas J. W. Kuiper
- University Medical Center Utrecht, Utrecht University; Utrecht The Netherlands
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Small K, Ferrara M, Schmidt A, Foster CS. Birdshot retinochoroidopathy: pathophysiology, diagnosis and treatment. Expert Opin Orphan Drugs 2017. [DOI: 10.1080/21678707.2017.1300523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Karen Small
- Massachusetts Eye Research and Surgery Institution (MERSI), Waltham, MA, USA
- Ocular Immunology and Uveitis Foundation, Weston, MA, USA
| | - Mariantonia Ferrara
- Massachusetts Eye Research and Surgery Institution (MERSI), Waltham, MA, USA
- Ocular Immunology and Uveitis Foundation, Weston, MA, USA
- Department of Neuroscience, Reproductive and Odontostomatological Science, University of Naples, ‘Federico II’, Naples, Italy
| | - Alexander Schmidt
- Massachusetts Eye Research and Surgery Institution (MERSI), Waltham, MA, USA
- Ocular Immunology and Uveitis Foundation, Weston, MA, USA
| | - C. Stephen Foster
- Massachusetts Eye Research and Surgery Institution (MERSI), Waltham, MA, USA
- Ocular Immunology and Uveitis Foundation, Weston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
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