Impaired cell-mediated immunity in systemic lupus erythematosus (SLE). A controlled study of 23 untreated patients.

The American Journal of Medicine
J G PatyA T Masi

Abstract

Cell-mediated immunity was evaluated in 23 patients with systemic lupus erythematosus (SLE) prior to therapy and in 23 control subjects. The patients with SLE who had moderate to severe disease activity had significantly fewer positive delayed skin tests to streptokinase-streptodornase (SK-SD) and Candida than the control subjects, and a higher frequency of anergy than either the control subjects or the patients with mild SLE. Significant impairment of lymphocyte transformation to all common antigens tested was found in patients with SLE as compared to both normal subjects and control subjects with disease. Phytohemagglutinin response was reduced in patients with SLE as compared to normal subjects but not to the control subjects with disease. Lymphocyte transformation responses to SK-SD and Candida were also significantly lower in patients with moderate to severe SLE as compared to patients with mildly active SLE. Primary immune response to keyhole limpet hemocyanin (KLH) was impaired in patients with SLE as measured by lymphocyte transformation and total KLH antibody, but not 2-mercaptoethanol resistant antibody. The data indicate defective T-cell function in SLE, and suggest that the impairment relates in part to disease acti...Continue Reading

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