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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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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-DRB103 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-DRB103-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-DRB103 and anti-Jo-1status was observed across all four cohorts (DRB103frequency: 74% Jo-1-positive vs 35% Jo-1-negative, OR5.55, 95% CI 3.42 to 9.14, p<0.0001). The frequency ofHLA-DRB103 was increased in smokers. The frequencyof anti-Jo-1 was increased in DRB103-positive smokersvs DRB103-negative non-smokers (42% vs 8%, OR 7.75,95% CI 4.21 to 14.28, p<0.0001) and DRB103-positivenon-smokers (42% vs 31%, p=0.08). In DRB103-negative patients, anti-Jo-1 status between smokers andnon-smokers was not signifi cantly different. No signifi cantinteraction was noted between smoking and DRB103status using anti-Jo-1 as the outcome measure.Conclusion Smoking appears to be associated withan increased risk of possession of anti-Jo-1 in HLADRB103-positive IIM cases. The authors hypothesisethat an interaction between HLA-DRB103 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.
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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