T lymphocytes from patients with Pemphigus foliaceus were studied fortheir ability to form E rosettes in thepresence of different concentrations of the immunostimulant levamisole. Lymphocytes from patients before systemic corticotherapy did not show stimulation when incubated with levamisole. Lymphocytes from patients submitted to corticotherapy had their ability to form rosettes inhibited. Those data suggest that the lymphocytes from patients with Pemphigus foliaceus may have some kind of defect in the phosphodiesterase of cyclic AMP.
Pemphigus foliaceus; Lymphocytes; Corticosteroid; Levamisole