Patients with systemic lupus erythematosus with high plasma levels of sFas risk relapse.
| Autor: | van Lopik T; CLB, Sanguin Blood Supply Foundation, Academical Medical Center, University of Amsterdam, The Netherlands., Bijl M, Hart M, Boeije L, Gesner T, Creasy AA, Kallenberg CG, Aarden LA, Smeenk RJ |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of rheumatology [J Rheumatol] 1999 Jan; Vol. 26 (1), pp. 60-7. |
| Abstrakt: | Objective: We related soluble Fas (sFas) levels to the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) in a longitudinal series of plasma samples of patients with SLE to evaluate the relation between excessive production of sFas and disease activity. Methods: We generated 21 monoclonal antibodies against Fas. Two of these were used to develop and validate a sensitive sandwich ELISA for the longitudinal analysis of sFas levels in plasma of 30 patients and 25 controls. Results: At the start of followup, a significant elevation (p<0.0001) was found in sFas levels in SLE (1167+/-347 pg/ml sFas) compared to controls (618+/-98 pg/ml sFas). Also, at the start of the followup a significant difference (p = 0.0028) existed between patients who were going to have a relapse (1236+/-402 pg/ml sFas) during followup and patients who were not (809+/-276 pg/ml sFas). While sFas did not fluctuate with disease activity in individual patients, we found a strong correlation (r = 0.75, p<0.0001) between sFas and SLEDAI, but only at the time of relapse, when we analyzed the patients as a group. Conclusion: In individual patients with SLE, sFas does not fluctuate with disease activity. However, patients with high plasma levels of sFas are at risk of relapse. |
| Databáze: | MEDLINE |
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