Article ; Online: Association between the Presence of Autoantibodies Targeting Ficolin-3 and Active Nephritis in Patients with Systemic Lupus Erythematosus.
PloS one
2016 Volume 11, Issue 9, Page(s) e0160879
Abstract: ... significant difference was found in the anti-ficolin-3 levels between SLE patients and healthy subjects. Anti ... to determine the prevalence of anti-ficolin-3 antibodies among SLE patients and to investigate their potential ... with clinical manifestations, the presence of active lupus nephritis was significantly associated ...
| Abstract | Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by the production of multiple autoantibodies. Antibodies against Ficolin-3 were previously identified in the sera of some SLE patients, but their prevalence and significance have not been yet investigated. The aims of this study were to determine the prevalence of anti-ficolin-3 antibodies among SLE patients and to investigate their potential as diagnostic and/or prognostic biomarkers in SLE. In this retrospective study, sera from SLE patients (n = 165) were selected from a preexisting declared biological collection. Samples from healthy controls (n = 48) were matched with SLE sera. Disease activity was determined according to the SLEDAI score. Anti-ficolin-3, anti-dsDNA and anti-C1q antibodies levels were measured in sera by ELISA. First, a highly significant difference was found in the anti-ficolin-3 levels between SLE patients and healthy subjects. Anti-ficolin-3 antibodies were detected as positive in 56 of 165 (34%) SLE patients. The titer of anti-ficolin-3 antibodies was correlated with the SLEDAI score (r = 0.38, p<0.0001). The presence of anti-ficolin-3 antibodies was associated with anti-C1q and anti-dsDNA antibodies. Regarding associations with clinical manifestations, the presence of active lupus nephritis was significantly associated with the presence of anti-ficolin-3 antibodies (p≤0.001). This association with renal involvement was higher with anti-ficolin-3 or anti-C1q antibodies than with other auto-antibodies. Interestingly, the combination of anti-ficolin-3 and anti-C1q antibodies demonstrated higher specificity than any other serological biomarker. These results suggest that anti-ficolin-3 antibodies could be useful for the diagnosis of active nephritis in SLE patients. |
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| MeSH term(s) | Adult ; Aged ; Autoantibodies/blood ; Biomarkers/blood ; Case-Control Studies ; Female ; Glycoproteins/immunology ; Humans ; Lectins/immunology ; Lupus Nephritis/immunology ; Male ; Middle Aged ; Retrospective Studies |
| Chemical Substances | Autoantibodies ; Biomarkers ; FCN3 protein, human ; Glycoproteins ; Lectins |
| Language | English |
| Publishing date | 2016-09-15 |
| Publishing country | United States |
| Document type | Journal Article ; Multicenter Study |
| ISSN | 1932-6203 |
| ISSN (online) | 1932-6203 |
| DOI | 10.1371/journal.pone.0160879 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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