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001-es BibID:BIBFORM083545
035-os BibID:(WOS)000537433000017 (Scopus)85084167516
Első szerző:Betteridge, Zoe
Cím:Identification of a novel autoantigen eukaryotic initiation factor 3 associated with polymyositis / Zoe Betteridge, Hector Chinoy, Jiri Vencovsky, John Winer, Kiran Putchakayala, Pauline Ho, Ingrid Lundberg, Katalin Danko, Robert Cooper, Neil McHugh
Dátum:2020
ISSN:1462-0324 1462-0332
Megjegyzések:OBJECTIVES: To describe the prevalence and clinical associations of autoantibodies to a novel autoantigen, eukaryotic initiation factor 3 (eIF3), detected in idiopathic inflammatory myositis. METHODS: Sera or plasma from 678 PM patients were analysed for autoantigen specificity by radio-labelled protein immunoprecipitation (IPP). Samples immunoprecipitating the same novel autoantigens were further analysed by indirect immunofluorescence and IPP using pre-depleted cell extracts. The autoantigen was identified through a combination of IPP and MALDI-TOF mass spectrometry, and confirmed using commercial antibodies and IPP-western blots. Additional samples from patients with DM (668), DM-overlap (80), PM-overlap (191), systemic sclerosis (150), systemic lupus erythematosus (200), Sjogren's syndrome (40), rheumatoid arthritis (50) and healthy controls (150) were serotyped by IPP as disease or healthy controls. RESULTS: IPP revealed a novel pattern in three PM patients (0.44%) that was not found in disease-specific or healthy control sera. Indirect immunofluorescence demonstrated a fine cytoplasmic speckled pattern for all positive patients. Mass spectrometry analysis of the protein complex identified the target autoantigen as eIF3, a cytoplasmic complex with a role in the initiation of translation. Findings were confirmed by IPP-Western blotting. The three anti-eIF3-positive patients had no history of malignancy or interstitial lung disease, and had a favourable response to treatment. CONCLUSION: We report a novel autoantibody in 0.44% of PM patients directed against a cytoplasmic complex of proteins identified as eIF3. Although our findings need further confirmation, anti-eIF3 appears to correlate with a good prognosis and a favourable response to treatment.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
autoantibodies
autoantigens
myositis
Megjelenés:Rheumatology. - 59 : 5 (2020), p. 1026-1030. -
További szerzők:Chinoy, Hector Vencovsky, Jiri Winer, John Putchakayala, Kiran Ho, Pauline Lundberg, Ingrid Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Cooper, Robert G. McHugh, Neil
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001-es BibID:BIBFORM078908
Első szerző:Betteridge, Zoe
Cím:Clinical Phenotypes of Caucasian Adult and Juvenile Dermatomyositis Patients with Anti-MDA5 Autoantibodies / Zoe Betteridge, Sarah Tansley, Harsha Gunawardena, Lucy R. Wedderburn, Hector Chinoy, Robert G. Cooper, Jiri Vencovsky, Lenka Plestilova, Ingrid E. Lundberg, Katalin Danko, Melinda Vincze, Neil McHugh, UK JDRG, EuMyoNet
Dátum:2019
Megjegyzések:Background/Purpose: Autoantibodies to MDA5 have been previously reported in Japanese patients with dermatomyositis (DM) and are associated with clinically-amyopathic DM and rapidly progressing interstitial lung disease (ILD). These autoantibodies also occur in juvenile Japanese DM patients in association with ILD. Anti-MDA5 has also been reported in a cohort of mixed ethnicity, where it was found to be associated with ILD and severe vasculopathy. Here we report on the frequency and clinical manifestations of anti-MDA5 autoantibodies in a large international multicenter cohort of Caucasian adult and juvenile myositis patients. Methods: Serum was available from 1331 adult myositis patients (480 DM) recruited to the EuMyoNet repository and 172 JDM patients recruited to the UK JDRG. Sera were screened for autoantibodies by immunoprecipitation (IPP) using radio-labelled K562 cell extract. Sera with immunoprecipitates at approximately 140 kDa were tested for anti-MDA5 autoantibodies by ELISA using recombinant MDA5 (Cambridge BioSciences). Clinical data were collected on standardised proformas. Sera from 169 systemic sclerosis, 40 SLE and 50 healthy controls were also analyzed by IPP. Statistical analysis was performed using SPSS and Fishers Exact Test. Results: Anti-MDA5 autoantibodies were found in the sera of 12 JDM patients and 25 adults. The frequency in the JDM cohort was 7.0%, in comparison to 1.9% in the overall adult myositis population and 3.8% in the adult DM group. Anti-MDA5 autoantibodies were not found in any patients with PM or any control sera. As with previous reports, there was an association between ILD and anti-MDA5 (p_0.044) in the adultDMpatients. However, contrary to previous reports, this was not seen to be rapidly progressing, with no known ILD related fatalities in the anti-MDA5 positive group. In comparison, ILD was not found to be a significant association in the JDM anti-MDA5 positive group, with no patients having ILD reported as a clinical manifestation. Similarly to previous report, anti-MDA5 positive patients had significantly more ulceration (skin: p_0.047 and mouth: p_0.039), in the JDM cohort, compared with the anti-MDA5 negative group. Whilst ulceration data was unavailable in the adult population, the presence of anti-MDA5 was significantly associated with Gottron's papules (p_0.001). Conclusion: We report the presence of anti-MDA5 autoantibodies in a large cohort of Caucasian JDM and adult myositis patients. The frequency of anti-MDA5 autoantibodies varies between adults and children, along with differences in the clinical profile. As with previous reports, the presence of anti-MDA5 is associated with the presence of severe cutaneous features in both JDM and adults. However, in this study ILD was only an association in the adult population, suggesting differences in pathogenesis or aetiology. This study also highlights differences in clinical manifestations between different ethnic groups, with the ILD in our adult patients being
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
Megjelenés:Arthritis & Rheumatism. - 64 : 10 (2019), p. S715. -
További szerzők:Tansley, Sarah Gunawardena, Harsha Wedderburn, Lucy R. Chinoy, Hector Cooper, Robert G. Vencovsky, Jiri Plestilova, Lenka Lundberg, Ingrid Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Nagy-Vincze Melinda (1985-) (orvos) McHugh, Neil UK JDRG EuMyoNet
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3.

001-es BibID:BIBFORM078900
035-os BibID:(PMID)30992170
Első szerző:Betteridge, Zoe
Cím:Frequency, mutual exclusivity and clinical associations of myositis autoantibodies in a combined European cohort of idiopathic inflammatory myopathy patients / Z. Betteridge, S. Tansley, G. Shaddick, H. Chinoy, R. G. Cooper, R. P. New, J. B. Lilleker, J. Vencovsky, L. Chazarain, K. Danko, M. Nagy-Vincze, L. Bodoki, M. Dastmalchi, L. Ekholm, I. E. Lundberg, N. McHugh, UKMyonet contributors
Dátum:2019
ISSN:0896-8411
Megjegyzések:OBJECTIVES: To determine prevalence and co-existence of myositis specific autoantibodies (MSAs) and myositis associated autoantibodies (MAAs) and associated clinical characteristics in a large cohort of idiopathic inflammatory myopathy (IIM) patients. METHODS: Adult patients with confirmed IIM recruited to the EuroMyositis registry (n?=?1637) from four centres were investigated for the presence of MSAs/MAAs by radiolabelled-immunoprecipitation, with confirmation of anti-MDA5 and anti-NXP2 by ELISA. Clinical associations for each autoantibody were calculated for 1483 patients with a single or no known autoantibody by global linear regression modelling. RESULTS: MSAs/MAAs were found in 61.5% of patients, with 84.7% of autoantibody positive patients having a sole specificity, and only three cases (0.2%) having more than one MSA. The most frequently detected autoantibody was anti-Jo-1 (18.7%), with a further 21 specificities each found in 0.2-7.9% of patients. Autoantibodies to Mi-2, SAE, TIF1, NXP2, MDA5, PMScl and the non-Jo-1 tRNA-synthetases were strongly associated (p?<?0.001) with cutaneous involvement. Anti-TIF1 and anti-Mi-2 positive patients had an increased risk of malignancy (OR 4.67 and 2.50 respectively), and anti-SRP patients had a greater likelihood of cardiac involvement (OR 4.15). Interstitial lung disease was strongly associated with the anti-tRNA synthetases, anti-MDA5, and anti-U1RNP/Sm. Overlap disease was strongly associated with anti-PMScl, anti-Ku, anti-U1RNP/Sm and anti-Ro60. Absence of MSA/MAA was negatively associated with extra-muscular manifestations. CONCLUSIONS: Myositis autoantibodies are present in the majority of patients with IIM and identify distinct clinical subsets. Furthermore, MSAs are nearly always mutually exclusive endorsing their credentials as valuable disease biomarkers.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Autoantibodies
Autoimmune
Dermatomyositis
Myositis
Polymyositis
Megjelenés:Journal Of Autoimmunity. - 101 (2019), p. 48-55. -
További szerzők:Tansley, Sarah Shaddick, G. Chinoy, Hector Cooper, Robert G. New, Robert Paul Lilleker, James B. Vencovsky, Jiri Chazarain, L. Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Nagy-Vincze Melinda (1985-) (orvos) Bodoki Levente (1986-) (PhD hallgató) Dastmalchi, Maryam Ekholm, L. Lundberg, Ingrid McHugh, Neil UKMyonet contributors
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4.

001-es BibID:BIBFORM040271
Első szerző:Chinoy, Hector
Cím:Interaction of HLA-DRB1*03 and smoking for the development of anti-Jo-1 antibodies in adult idiopathic inflammatory myopathies : a European-wide case study / Chinoy H., Adimulam S., Marriage F., New P., Vincze M., Zilahi E., Kapitány A., Gyetvai A., Ekholm L., Novota P., Remakova M., Charles P., McHugh N. J., Padyukov L., Alfredsson L., Vencovsky J., Lundberg I. E., Danko K., Ollier W. E., Cooper R. G.
Dátum:2012
Megjegyzések:Objectives: HLA-DRB1*03 is strongly associated withanti-Jo-1-positive idiopathic infl ammatory myopathies (IIM)and there is now increasing evidence that Jo-1 antigen ispreferentially expressed in lung tissue. This study examinedwhether smoking was associated with the development ofanti-Jo-1 antibodies in HLA-DRB1*03-positive IIM.Methods IIM cases were selected with concurrentinformation regarding HLA-DRB1 status, smoking historyand anti-Jo-1 antibody status. DNA was genotypedat DRB1 using a commercial sequence-specifi coligonucleotide kit. Anti-Jo-1 antibody status wasestablished using a line blot assay or immunoprecipitation.Results 557 Caucasian IIM patients were recruited fromHungary (181), UK (99), Sweden (94) and Czech Republic(183). Smoking frequency was increased in anti-Jo-1-positive IIM cases, and reached statistical signifi cance inHungarian IIM (45% Jo-1-positive vs 17% Jo-1-negative,OR 3.94, 95% CI 1.53 to 9.89, p<0.0001). A strongassociation between HLA-DRB1*03 and anti-Jo-1status was observed across all four cohorts (DRB1*03frequency: 74% Jo-1-positive vs 35% Jo-1-negative, OR5.55, 95% CI 3.42 to 9.14, p<0.0001). The frequency ofHLA-DRB1*03 was increased in smokers. The frequencyof anti-Jo-1 was increased in DRB1*03-positive smokersvs DRB1*03-negative non-smokers (42% vs 8%, OR 7.75,95% CI 4.21 to 14.28, p<0.0001) and DRB1*03-positivenon-smokers (42% vs 31%, p=0.08). In DRB1*03-negative patients, anti-Jo-1 status between smokers andnon-smokers was not signifi cantly different. No signifi cantinteraction was noted between smoking and DRB1*03status using anti-Jo-1 as the outcome measure.Conclusion Smoking appears to be associated withan increased risk of possession of anti-Jo-1 in HLADRB1*03-positive IIM cases. The authors hypothesisethat an interaction between HLA-DRB1*03 and smokingmay prime the development of anti-Jo-1 antibodies.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
myopathy
Megjelenés:Annals of the Rheumatic Diseases 71 : 6 (2012), p. 961-965. -
További szerzők:Adimulam, S. Marriage, F. New, Paul Nagy-Vincze Melinda (1985-) (orvos) Zilahi Erika (1964-) (molekuláris biológus) Kapitány Anikó (1979-) (molekuláris biológus) Gyetvai Ágnes Ekholm, L. Novota, P. Remakova, M. Charles, Peter McHugh, Neil Padyukov, Leonid Alfredsson, Lars Vencovsky, Jiri Lundberg, Ingrid Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Ollier, William E. Cooper, Robert G.
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5.

001-es BibID:BIBFORM077422
035-os BibID:(Cikkazonosító)e51 (WoS)000440169600005 (Scopus)85049024561
Első szerző:Lilleker, James B.
Cím:Response to: "Antisynthetase syndrome or what else? Different perspectives indicate the need for new classification criteria" by Cavagna et al / James B. Lilleker, Jiri Vencovsky, Guochun Wang, Lucy R. Wedderburn, Louise P. Diederichsen, Jens Schmidt, Paula Jordan, Olivier Benveniste, Maria Giovanna Danieli, Katalin Dankó, Nguyen Thi Phuong Thuy, Monica Vázquez-Del Mercado, Helena Andersson, Boel De Paepe, Jan L. De Bleecker, Britta Maurer, Liza J. McCann, Nicolo Pipitone, Neil McHugh, Zoe Betteridge, Paul New, Robert G. Cooper, William E. Ollier, Janine A. Lamb, Niels Steen Krogh, Ingrid E. Lundberg, Hector Chinoy, EuroMyositis contributors
Dátum:2017
ISSN:0003-4967
Tárgyszavak:Orvostudományok Klinikai orvostudományok hozzászólás
Megjelenés:Annals of The Rheumatic Diseases. - 77 : 8 (2017), p. 1. -
További szerzők:Vencovsky, Jiri Wang, Guochun Wedderburn, Lucy R. Diederichsen, Louise Pyndt Schmidt, Jens Jordan, Paula Benveniste, Olivier Danieli, Maria Giovanna Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Nguyen, Thi Le Phuong Vazquez-Del Mercado, Monica Andersson, Helena De Paepe, Boel De Bleecker, Jan Maurer, Britta McCann, Liza J. Pipitone, Nicolo McHugh, Neil Betteridge, Zoe New, Paul Cooper, Robert G. Ollier, William E. Lamb, Janine A. Krogh, Niels Steen Lundberg, Ingrid Chinoy, Hector EuroMyositis contributors
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6.

001-es BibID:BIBFORM073211
035-os BibID:(WoS)000417778700010 (Scopus)85038218055
Első szerző:Lilleker, James B.
Cím:The EuroMyositis registry : an international collaborative tool to facilitate myositis research / James B. Lilleker, Jiri Vencovsky, Guochun Wang, Lucy R. Wedderburn, Louise Pyndt Diederichsen, Jens Schmidt, Paula Oakley, Olivier Benveniste, Maria Giovanna Danieli, Katalin Danko, Nguyen Thi Phuong Thuy, Monica Vazquez-Del Mercado, Helena Andersson, Boel De Paepe, Jan L. deBleecker, Britta Maurer, Liza J. McCann, Nicolo Pipitone, Neil McHugh, Zoe E. Betteridge, Paul New, Robert G. Cooper, William E. Ollier, Janine A. Lamb, Niels Steen Krogh, Ingrid E. Lundberg, Hector Chinoy, EuroMyositis contributors
Dátum:2018
ISSN:0003-4967
Megjegyzések:AIMS:The EuroMyositis Registry facilitates collaboration across the idiopathic inflammatory myopathy (IIM) research community. This inaugural report examines pooled Registry data.METHODS:Cross-sectional analysis of IIM cases from 11 countries was performed. Associations between clinical subtypes, extramuscular involvement, environmental exposures and medications were investigated.RESULTS:Of 3067 IIM cases, 69% were female. The most common IIM subtype was dermatomyositis (DM) (31%). Smoking was more frequent in connective tissue disease overlap cases (45%, OR 1.44, 95% CI 1.09 to 1.90, p=0.012). Smoking was associated with interstitial lung disease (ILD) (OR 1.32, 95% CI 1.06 to 1.65, p=0.013), dysphagia (OR 1.43, 95% CI 1.16 to 1.77, p=0.001), malignancy ever (OR 1.78, 95% CI 1.36 to 2.33, p<0.001) and cardiac involvement (OR 2.40, 95% CI 1.60 to 3.60, p<0.001).Dysphagia occurred in 39% and cardiac involvement in 9%; either occurrence was associated with higher Health Assessment Questionnaire (HAQ) scores (adjusted OR 1.79, 95% CI 1.43 to 2.23, p<0.001). HAQ scores were also higher in inclusion body myositis cases (adjusted OR 3.85, 95% CI 2.52 to 5.90, p<0.001). Malignancy (ever) occurred in 13%, most commonly in DM (20%, OR 2.06, 95% CI 1.65 to 2.57, p<0.001).ILD occurred in 30%, most frequently in antisynthetase syndrome (71%, OR 10.7, 95% CI 8.6 to 13.4, p<0.001). Rash characteristics differed between adult-onset and juvenile-onset DM cases ('V' sign: 56%?DM vs 16% juvenile-DM, OR 0.16, 95% CI 0.07 to 0.36, p<0.001). Glucocorticoids were used in 98% of cases, methotrexate in 71% and azathioprine in 51%.CONCLUSION:This large multicentre cohort demonstrates the importance of extramuscular involvement in patients with IIM, its association with smoking and its influence on disease severity. Our findings emphasise that IIM is a multisystem inflammatory disease and will help inform prognosis and clinical management of patients.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Disease registrieS
Myositis
Megjelenés:Annals Of The Rheumatic Diseases. - 77 : 1 (2018), p. 30-39. -
További szerzők:Vencovsky, Jiri Wang, Guochun Wedderburn, Lucy R. Diederichsen, Louise Pyndt Schmidt, Jens Oakley, Paula Benveniste, Olivier Danieli, Maria Giovanna Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Thuy, Nguyen Thi Phuong Vazquez-Del Mercado, Monica Andersson, Helena De Paepe, Boel deBleecker, Jan L. Maurer, Britta McCann, Liza J. Pipitone, Nicolo McHugh, Neil Betteridge, Zoe New, Paul Cooper, Robert G. Ollier, William E. Lamb, Janine A. Krogh, Niels Steen Lundberg, Ingrid Chinoy, Hector EuroMyositis contributors
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7.

001-es BibID:BIBFORM083544
035-os BibID:(WoS)000471138100032 (Scopus)85067232111
Első szerző:Rothwell, Simon
Cím:Focused HLA analysis in Caucasians with myositis identifies significant associations with autoantibody subgroups / Simon Rothwell, Hector Chinoy, Janine A. Lamb, Frederick W. Miller, Lisa G. Rider, Lucy R. Wedderburn, Neil J. McHugh, Andrew L. Mammen, Zoe E. Betteridge, Sarah L. Tansley, John Bowes, Jiří Vencovský, Claire T. Deakin, Katalin Dankó, Limaye Vidya, Albert Selva-O'Callaghan, Lauren M. Pachman, Ann M. Reed, Øyvind Molberg, Olivier Benveniste, Pernille R. Mathiesen, Timothy R. D. J. Radstake, Andrea Doria, Jan de Bleecker, Annette T. Lee, Michael G. Hanna, Pedro M. Machado, William E. Ollier, Peter K. Gregersen, Leonid Padyukov, Terrance P. O'Hanlon, Robert G. Cooper, Ingrid E. Lundberg, Myositis Genetics Consortium (MYOGEN)
Dátum:2019
ISSN:0003-4967
Megjegyzések:OBJECTIVES: Idiopathic inflammatory myopathies (IIM) are a spectrum of rare autoimmune diseases characterised clinically by muscle weakness and heterogeneous systemic organ involvement. The strongest genetic risk is within the major histocompatibility complex (MHC). Since autoantibody presence defines specific clinical subgroups of IIM, we aimed to correlate serotype and genotype, to identify novel risk variants in the MHC region that co-occur with IIM autoantibodies. METHODS: We collected available autoantibody data in our cohort of 2582 Caucasian patients with IIM. High resolution human leucocyte antigen (HLA) alleles and corresponding amino acid sequences were imputed using SNP2HLA from existing genotyping data and tested for association with 12 autoantibody subgroups. RESULTS: We report associations with eight autoantibodies reaching our study-wide significance level of p<2.9?10-5. Associations with the 8.1 ancestral haplotype were found with anti-Jo-1 (HLA-B*08:01, p=2.28?10-53?and HLA-DRB1*03:01, p=3.25?10-9), anti-PM/Scl (HLA-DQB1*02:01, p=1.47?10-26) and anti-cN1A autoantibodies (HLA-DRB1*03:01, p=1.40?10-11). Associations independent of this haplotype were found with anti-Mi-2 (HLA-DRB1*07:01, p=4.92?10-13) and anti-HMGCR autoantibodies (HLA-DRB1*11, p=5.09?10-6). Amino acid positions may be more strongly associated than classical HLA associations; for example with anti-Jo-1 autoantibodies and position 74 of HLA-DRB1 (p=3.47?10-64) and position 9 of HLA-B (p=7.03?10-11). We report novel genetic associations with HLA-DQB1 anti-TIF1 autoantibodies and identify haplotypes that may differ between adult-onset and juvenile-onset patients with these autoantibodies. CONCLUSIONS: These findings provide new insights regarding the functional consequences of genetic polymorphisms within the MHC. As autoantibodies in IIM correlate with specific clinical features of disease, understanding genetic risk underlying development of autoantibody profiles has implications for future research.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
HLA
autoantibody
genetics
idiopathic inflammatory myopathy
myositis
Megjelenés:Annals Of The Rheumatic Diseases. - 78 : 7 (2019), p. 996-1002. -
További szerzők:Chinoy, Hector Lamb, Janine A. Miller, Frederick W. Rider, Lisa G. Wedderburn, Lucy R. McHugh, Neil Mammen, Andrew Betteridge, Zoe Tansley, Sarah Bowes, John Vencovsky, Jiri Deakin, Claire T. Dankó Katalin (1952-2021) (belgyógyász, allergológus és klinikai immunológus) Vidya, Limaye Selva-O'Callaghan, Albert Pachman, Lauren M. Reed, Ann M. Molberg, Øyvind Benveniste, Olivier Mathiesen, Pernille R. Radstake, Timothy R. D. J. Doria, Andrea De Bleecker, Jan Lee, Annette Hanna, Michael G. Machado, Pedro M. Ollier, William E. Gregersen, Peter K. Padyukov, Leonid O'Hanlon, Terrance P. Cooper, Robert G. Lundberg, Ingrid Myositis Genetics Consortium (MYOGEN)
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