期刊
JOURNAL OF RHEUMATOLOGY
卷 42, 期 10, 页码 1786-1793出版社
J RHEUMATOL PUBL CO
DOI: 10.3899/jrheum.150185
关键词
FH AUTOANTIBODIES; ANTIPHOSPHOLIPID SYNDROME; SYSTEMIC LUPUS ERYTHEMATOSUS; THROMBOSIS; ANTIPHOSPHOLIPID ANTIBODIES; DEEP VENOUS THROMBOSIS
类别
资金
- Swedish Research Council [K2012-66X-14928-09-5]
- Foundation of Soderberg
- Foundation of Osterlund
- Foundation of Kock
- Foundation of King Gustav V's 80th Anniversary
- Foundation of Swedish Rheumatism Association
- Foundation of Knut and Alice Wallenberg
- Foundation of Inga-Britt and Arne Lundberg
- Skane University Hospital
- ALF
- Ministry of Science of the Republic of Serbia [175041]
Objective. Autoantibodies to complement factor H (FH) are associated with atypical hemolytic uremic syndrome, but can also be detected in patients with rheumatoid arthritis and in patients positive for lupus anticoagulants and thus potentially antiphospholipid syndrome (APS). To our knowledge, no data are available on the association between the presence of FH autoantibodies in APS and clinical manifestations. Methods. We determined FH autoantibody levels using ELISA in 2 cohorts of patients with primary (PAPS) and secondary APS (SAPS) from Serbia and Italy, and an additional cohort including patients with venous thromboembolism (VTE) from Sweden. Results. FH autoantibodies were detected in 13.7% of patients (n = 73) with PAPS and 30.3% of patients (n = 33) with SAPS in the Serbian cohort. FH autoantibody frequency in the Italian cohort was 33.3% (n = 15) and 36% (n = 25) in PAPS and SAPS, respectively. Both FH autoantibody levels and frequencies observed in both APS cohorts were significantly higher than in matched healthy controls (5%). Further, patients with PAPS with venous thrombosis in the Serbian cohort had significantly higher levels of FH autoantibodies. Therefore, we analyzed a dedicated Swedish thrombosis cohort and found that patients with FH autoantibody positivity had higher risk of VTE recurrence (HR 2.0, 95% CI 1.2-3.3, p = 0.011) compared with the reference group of FH autoantibody-negative patients. Conclusion. Overall, the data indicate that in patients with APS and recurrent venous thrombosis, there are increased levels of FH autoantibodies, a finding associated with poor clinical outcome.
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