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Published in: Rheumatology International 8/2016

01-08-2016 | Genes and Disease

Association of PTPN22 1858C→T polymorphism, HLA-DRB1 shared epitope and autoantibodies with rheumatoid arthritis

Authors: Hala M. Raslan, Hanaa R. Attia, Iman Salama, Mona Hamed Ibrahim, Eman Mahmoud Hassan, Mohamed S. El Hussieny, Manal M. El Menyawi, Khalda S. Amr

Published in: Rheumatology International | Issue 8/2016

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Abstract

To assess impact of PTPN22 1858C→T polymorphism, HLA shared epitope and autoantibodies on susceptibility and severity of rheumatoid arthritis (RA). A total of 150 RA patients and 150 controls were included in the study. Anti-cyclic citrullinated peptide (anti-CCP) and rheumatoid factor isotypes (IgG, IgM and IgA) were assayed by ELISA. PTPN22 1858C→T polymorphism was performed by RFLP analysis and HLA-DRB1 genotyping by PCR-SSP analysis. Single-view, anteroposterior radiographs of the hands and feet were obtained on all RA patients. The results showed association of PTPN22 1858 T allele with RA (OR = 2.3, 95 % CI 1.5–3.5) and bone erosion (OR = 2.9, 95 % CI 1.1–7.6). The associations increased with the combination of positive autoantibodies, HLA-DRB1 SE with PTPN22 1858 T allele carriage. The highest association was with the combination with anti-CCP antibodies (OR = 47.3, 95 % CI 10.9–204.4 for RA and OR = 69.4, 95 % CI 15.8–305.5 for erosion p < 0.001). Combination of PTPN22 1858 T allele carriage with negative RF isotypes or with absence HLA-DRB1 SE showed no significant association with RA. The presence of PTPN22 1858C→T polymorphism with HLA SE and autoantibodies increases risk of RA development and erosive disease.
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Metadata
Title
Association of PTPN22 1858C→T polymorphism, HLA-DRB1 shared epitope and autoantibodies with rheumatoid arthritis
Authors
Hala M. Raslan
Hanaa R. Attia
Iman Salama
Mona Hamed Ibrahim
Eman Mahmoud Hassan
Mohamed S. El Hussieny
Manal M. El Menyawi
Khalda S. Amr
Publication date
01-08-2016
Publisher
Springer Berlin Heidelberg
Published in
Rheumatology International / Issue 8/2016
Print ISSN: 0172-8172
Electronic ISSN: 1437-160X
DOI
https://doi.org/10.1007/s00296-016-3511-6

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