Mannose-binding lectin gene polymorphisms are associated with disease activity and physical disability in untreated, anti-cyclic citrullinated peptide-positive patients with early rheumatoid arthritis

Søren Jacobsen, Peter Garred, Hans Ole Madsen, Niels H H Heegaard, Merete Lund Hetland, Kristian Stengaard-Pedersen, Peter Junker, Tine Lottenburger, Torkel Ellingsen, Lis Smedegaard Andersen, Ib Hansen, Henrik Skjødt, Jens Kristian Pedersen, Ulrik Birk Lauridsen, Anders J Svendsen, Ulrik Tarp, Jan Pødenphant, Hanne Lindegaard, Aage Vestergaard, Mikkel ØstergaardKim Hørslev-Petersen, Søren Jacobsen, Peter Garred, Hans Ole Madsen, Niels H H Heegaard, Merete Lund Hetland, Kristian Stengaard-Pedersen, Peter Junker, Tine Lottenburger, Torkel Ellingsen, Lis Smedegaard Andersen, Ib Hansen, Henrik Skjødt, Jens Kristian Pedersen, Ulrik Birk Lauridsen, Anders J Svendsen, Ulrik Tarp, Jan Pødenphant, Hanne Lindegaard, Aage Vestergaard, Mikkel Østergaard, Kim Hørslev-Petersen

    18 Citations (Scopus)

    Abstract

    OBJECTIVE: To study the association between polymorphisms in the mannose-binding lectin gene (MBL2) and disease activity, physical disability, and joint erosions in patients with newly diagnosed rheumatoid arthritis (RA). METHODS: Patients with early RA (n=158) not previously treated with disease modifying antirheumatic drugs, participating in a treatment trial (CIMESTRA study) were examined at inclusion for MBL2 pooled structural genotypes (O/O, A/O, A/A), regulatory MBL2 promoter polymorphism in position -221 (XX, XY, YY), anti-cyclic citrullinated peptide 2 antibodies (anti-CCP2), disease activity by Disease Activity Score-28 (DAS28 score), physical disability by Health Assessment Questionnaire (HAQ) score, and erosive changes in hands and feet (Sharp-van der Heijde score). RESULTS: Eight patients were homozygous MBL2 defective (O/O), 101 belonged to an intermediate group, and 49 were MBL2 high producers (YA/YA). Anti-CCP was present in 93 patients (59%). High scores of disease activity, C-reactive protein-based DAS28 (p=0.02), and physical disability by HAQ (p=0.01) were associated with high MBL2 expression genotypes in a gene-dose dependent way, but only in anti-CCP-positive patients. At this early stage of the disease there was no association with erosion score from radiographs. CONCLUSION: The results point to a synovitis-enhancing effect of MBL in anti-CCP-positive RA, whereas such an effect was not demonstrated for joint erosions.
    Original languageEnglish
    JournalJournal of Rheumatology
    Volume36
    Issue number4
    Pages (from-to)731-5
    Number of pages5
    ISSN0315-162X
    DOIs
    Publication statusPublished - 1 Apr 2009

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