Antibodies against mutated citrullinated vimentin are a better predictor of disease activity at 24 months in early rheumatoid arthritis than antibodies against cyclic citrullinated peptides
2008 (English)In: Journal of Rheumatology, ISSN 0315-162X, E-ISSN 1499-2752, Vol. 35, no 6, 1002-1008 p.Article in journal (Refereed) Published
OBJECTIVE: To evaluate the predictive values for disease progression of various antibodies against citrullinated peptide proteins (ACPA) and their relation to PTPN22 1858C/T polymorphism and HLA-DRB1 alleles in early rheumatoid arthritis (RA).
METHODS: The ACPA, e.g., antibodies against mutated citrullinated vimentin (MCV), cyclic citrullinated peptides (CCP) type 2 and 3 (both of IgG isotype) and 3.1 (of both IgG and IgA isotypes), were analyzed at baseline in patients with early RA (n = 210) and in population controls (n = 102) using an enzyme immunoassay. A receiver-operating characteristic curve was constructed for each antibody. Disease activity [swollen and tender joints, visual analog scale for global health, and erythrocyte sedimentation rate (ESR)] was evaluated at baseline and regularly for 24 months. Radiographs of hands and feet were graded using the Larsen score.
RESULTS: Patients with anti-MCV antibodies had significantly less reduction in Disease Activity Score (DAS28) over time (p < 0.01), and significantly increased area under the curve (AUC) for DAS28 (p < 0.05), ESR (p < 0.01), C-reactive protein (p < 0.01), and swollen joint count (p = 0.057) compared to those without. Corresponding differences were not found in patients with anti-CCP2, CCP3, and CCP3.1 antibodies. Radiological progression (p < 0.0001-0.01) and radiological outcome (p < 0.0001-0.01) at 24 months were significantly predicted by all ACPA after baseline adjustments. PTPN22 T variant and HLA-DRB1 alleles were not related to radiological progression or inflammatory activity over time.
CONCLUSION: Anti-MCV antibodies are associated with a more severe RA disease, as measured by DAS28, ESR, and swollen joint count over time, compared with anti-CCP2, CCP3, and CCP3.1 antibodies. Radiological progression was predicted equally by all 4 autoantibodies.
Place, publisher, year, edition, pages
2008. Vol. 35, no 6, 1002-1008 p.
anti-cyclic citrullinated peptide 2, antibodies anti-cyclic citrullinated peptide 3 antibodies, anti-mutated citrullinated vimentin antibodies, early rheumatoid arthritis, rheumatoid factors
Rheumatology and Autoimmunity
IdentifiersURN: urn:nbn:se:umu:diva-19191ISI: 000256503900013PubMedID: 18398946OAI: oai:DiVA.org:umu-19191DiVA: diva2:201549