Abstract
T-lymphocyte subpopulations and antibody-dependent, cell-mediated cytotoxicity (ADCC) were studied in patients with alopecia areata and universalis. The proportions of T-cells with the receptors for IgG (Tg) and T-cells with receptor for IgM (Tm) were determined in 16 cases. The ADCC of unfractionated lymphocytes was examined in 5 cases. A higher proportion of Tg-cells (T-cell with low affinity for sheep red cells) and a more pronounced ADCC of the peripheral lymphocytes were found in patients with alopecia areata and universalis than in age- and sex-matched normal donors.
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