Objective To investigate the levels of IL-2,IL-6and their receptors in patients with systemic lupus erythematosus(SLE)before and after treatment.Methods The levels of IL-2,IL-6and their receptors were detected by ELISA,immunofluorescence labelling technique and flow cytometry analysis,respectively,in peripheral blood taken from SLE patients before and after treatment and normal controls.Results①IL-2was significantly decreased(P