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FältnamnIndikatorerMetadata
00004813naa a2200877 4500
001oai:prod.swepub.kib.ki.se:141142508
003SwePub
008240701s2019 | |||||||||||000 ||eng|
024a http://kipublications.ki.se/Default.aspx?queryparsed=id:1411425082 URI
024a https://doi.org/10.1136/annrheumdis-2019-2150462 DOI
040 a (SwePub)ki
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Rothwell, S4 aut
2451 0a Focused HLA analysis in Caucasians with myositis identifies significant associations with autoantibody subgroups
264 c 2019-05-28
264 1b BMJ,c 2019
520 a 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.MethodsWe 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.ResultsWe 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.ConclusionsThese 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.
700a Chinoy, H4 aut
700a Lamb, JA4 aut
700a Miller, FW4 aut
700a Rider, LG4 aut
700a Wedderburn, LR4 aut
700a McHugh, NJ4 aut
700a Mammen, AL4 aut
700a Betteridge, ZE4 aut
700a Tansley, SL4 aut
700a Bowes, J4 aut
700a Vencovsky, J4 aut
700a Deakin, CT4 aut
700a Danko, K4 aut
700a Vidya, L4 aut
700a Selva-O'Callaghan, A4 aut
700a Pachman, LM4 aut
700a Reed, AM4 aut
700a Molberg, O4 aut
700a Benveniste, O4 aut
700a Mathiesen, PR4 aut
700a Radstake, TRDJ4 aut
700a Doria, A4 aut
700a de Bleecker, J4 aut
700a Lee, AT4 aut
700a Hanna, MG4 aut
700a Machado, PM4 aut
700a Ollier, WE4 aut
700a Gregersen, PK4 aut
700a Padyukov, Lu Karolinska Institutet4 aut
700a O'Hanlon, TP4 aut
700a Cooper, RG4 aut
700a Lundberg, IEu Karolinska Institutet4 aut
700a Adams, BS4 aut
700a Bingham, CA4 aut
700a Cawkwell, GD4 aut
700a Finkel, TH4 aut
700a George, SW4 aut
700a Gewanter, HL4 aut
700a Goldmuntz, EA4 aut
700a Goldsmith, DP4 aut
700a Henrickson, M4 aut
700a Imundo, L4 aut
700a Katona, IM4 aut
700a Lindsley, CB4 aut
700a Oddis, CP4 aut
700a Olson, JC4 aut
700a Sherry, D4 aut
700a Vogelgesang, SA4 aut
700a Wallace, CA4 aut
700a White, PH4 aut
700a Zemel, LS4 aut
710a Karolinska Institutet4 org
773t Annals of the rheumatic diseasesd : BMJg 78:7, s. 996-1002q 78:7<996-1002x 1468-2060x 0003-4967
856u https://ard.bmj.com/content/annrheumdis/78/7/996.full.pdf
8564 8u http://kipublications.ki.se/Default.aspx?queryparsed=id:141142508
8564 8u https://doi.org/10.1136/annrheumdis-2019-215046

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