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Increased IgA anti-citrullinated protein antibodies in the periodontal inflammatory exudate of healthy individuals compared to rheumatoid arthritis patients

Rahajoe, P. S., de Smit, M., Schuurmans, G., Raveling-Eelsing, E., Kertia, N., Vissink, A. & Westra, J., May-2020, In : Journal of Clinical Periodontology. 47, 5, p. 552-560 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

Aim To assess rheumatoid arthritis (RA)-associated autoantibodies in the gingivocrevicular fluid (GCF) of RA patients and healthy controls with or without periodontal disease, as chronic mucosal inflammation in periodontal disease is hypothesized to contribute to the formation of these autoantibodies.

Materials and methods Anti-citrullinated protein antibodies (ACPA), rheumatoid factor (RF), and their IgA isotypes were assessed in the serum and GCF of RA patients (n = 72) and healthy controls (HC, n = 151). The presence and levels of these antibodies were studied in relation to interleukin (IL)-8 and periodontal disease.

Results In contrast to the HC, the levels of ACPA and RF in the serum and GCF of the RA patients were strongly correlated (p <.0001). The HC with high levels of IgA-ACPA (n = 27) also had significantly higher levels of total IgG, total IgA, and IL-8 in the GCF than the HC with low levels of IgA-ACPA in the GCF (n = 124). Periodontal inflammation and smoking were seen more frequently in the group with high levels of IgA-ACPA compared to the group with low IgA-ACPA.

Conclusion The IgA-ACPA in the GCF of HC may be associated with periodontal inflammation and smoking, and could be involved in the progression to RA.

Original languageEnglish
Pages (from-to)552-560
Number of pages9
JournalJournal of Clinical Periodontology
Volume47
Issue number5
Early online date6-Mar-2020
Publication statusPublished - May-2020

    Keywords

  • anti-citrullinated protein autoantibodies, mucosal inflammation, rheumatoid arthritis, rheumatoid factor, INFLAMED SURFACE-AREA, AUTOIMMUNITY, PROGRESSION, PEPTIDES, DISEASE, PATHOGENESIS, VALIDATION, CRITERIA, LEAGUE, FLUID

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