PMID- 22532637 OWN - NLM STAT- MEDLINE DCOM- 20120821 LR - 20191210 IS - 1468-2060 (Electronic) IS - 0003-4967 (Linking) VI - 71 IP - 7 DP - 2012 Jul TI - Serum IL-6 and IL-21 are associated with markers of B cell activation and structural progression in early rheumatoid arthritis: results from the ESPOIR cohort. PG - 1243-8 LID - 10.1136/annrheumdis-2011-200975 [doi] AB - OBJECTIVE: To identify a specific pattern of serum cytokines that correlates with the diagnosis, activity and severity of rheumatoid arthritis (RA) in patients with early RA as well as with the level of serum markers of B cell activation. METHODS: Serum interleukin (IL)-1beta, IL-1 receptor antagonist (IL1-Ra), IL-2, IL-4, IL-6, IL-10, IL-17, IL-21, monocyte chemotactic protein 1 (MCP-1), tumour necrosis factor alpha and interferon gamma levels were measured in the (ESPOIR) Etude et Suivi des POlyarthrites Indifferenciees Recentes early arthritis cohort, which included patients with at least two swollen joints for >6 weeks and <6 months, and no previous corticosteroids or disease-modifying antirheumatic drugs. Serum cytokine levels were compared between patients who met the 1987 American College of Rheumatology criteria for RA (n=578) or had undifferentiated arthritis (UA, n=132) at the 1-year follow-up visit. RESULTS: Serum IL-6 and IL-21 were the only cytokines that discriminated RA from UA on univariate analysis. IL-6 level was associated with RA, whereas erythrocyte sedimentation rate and C-reactive protein were not. Higher proportions of rheumatoid factor and anticyclic citrullinated protein (CCP) positivity, levels of markers of B cell activation, and a higher frequency of rapid radiographic progression were observed in patients with RA with detectable IL-6 or IL-21. Multivariate analysis associated IL-6 and anti-CCP levels with radiographic erosions at enrolment with 1-year radiographic progression. CONCLUSION: Serum IL-6 concentration is greater in RA than in UA. Increase in serum IL-6 and IL-21 levels is associated with markers of B cell activation, and IL-6 is associated with radiographic progression in patients with RA. FAU - Gottenberg, Jacques-Eric AU - Gottenberg JE AD - Department of Rheumatology, EA 4438, Strasbourg University Hospital, Hopital Hautepierre, 1 Avenue Moliere, 67000 Strasbourg, France. jacques-eric.gottenberg@chru-strasbourg.fr FAU - Dayer, Jean-Michel AU - Dayer JM FAU - Lukas, Cedric AU - Lukas C FAU - Ducot, Beatrice AU - Ducot B FAU - Chiocchia, Gilles AU - Chiocchia G FAU - Cantagrel, Alain AU - Cantagrel A FAU - Saraux, Alain AU - Saraux A FAU - Roux-Lombard, Pascale AU - Roux-Lombard P FAU - Mariette, Xavier AU - Mariette X LA - eng PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20120424 PL - England TA - Ann Rheum Dis JT - Annals of the rheumatic diseases JID - 0372355 RN - 0 (Biomarkers) RN - 0 (Interleukin-6) RN - 0 (Interleukins) RN - MKM3CA6LT1 (interleukin-21) SB - IM MH - Adult MH - Arthritis, Rheumatoid/blood/*diagnosis/immunology MH - B-Lymphocytes/*immunology/metabolism/pathology MH - Biomarkers/blood MH - Early Diagnosis MH - Female MH - Humans MH - Hyperalgesia/pathology/physiopathology MH - Interleukin-6/*blood MH - Interleukins/*blood MH - Joints/pathology/physiopathology MH - *Lymphocyte Activation MH - Male MH - Middle Aged MH - Outcome Assessment, Health Care MH - Prospective Studies EDAT- 2012/04/26 06:00 MHDA- 2012/08/22 06:00 CRDT- 2012/04/26 06:00 PHST- 2012/04/26 06:00 [entrez] PHST- 2012/04/26 06:00 [pubmed] PHST- 2012/08/22 06:00 [medline] AID - annrheumdis-2011-200975 [pii] AID - 10.1136/annrheumdis-2011-200975 [doi] PST - ppublish SO - Ann Rheum Dis. 2012 Jul;71(7):1243-8. doi: 10.1136/annrheumdis-2011-200975. Epub 2012 Apr 24.