Journal
AUTOIMMUNITY
Volume 35, Issue 1, Pages 51-56Publisher
INFORMA HEALTHCARE
DOI: 10.1080/08916930290005909
Keywords
SLE; plasmapheresis; Th1/Th2; intracytoplasmic cytokine; flow cytometry
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To examine the possible effect of plasmapheresis on the ratio of Th1/Th2 type cytokine-secreting cells we recruited eight patients with active systemic lupus erythematosus into the present study. They all failed to respond to conventional therapy. A sensitive multiparametric flow cytometric analysis was used for the detection of intracellular IL-4, IL-10 and IFN-gamma. Stimulated peripheral blood cells were analysed by this procedure. Plasmapheresis was performed every second day for three occasions, using a continuous flow type blood cell separator, and a total of 100 ml/body weight kg plasma was removed. Patients received 1 mg/kg/day methylprednisolone during this period. As a result of the procedure, the rate of IFNgamma positive Th cells increased, while the rate of IL-4 and IL-10 expressing CD4 positive cells decreased. Together with these observations the concentration of anti-ds-DNA antibodies decreased after plasmapheresis. A decrease in disease activity index (SLE-DAI) indicated the clinical effectiveness of the therapy.
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