Expression of lymphocyte activation markers in benign cutaneous T cell infiltrates. Discoid lupus erythematosus versus lichen ruber planus.
The expression of lymphocyte activation markers (IL2 receptors, transferrin receptors and HLA-DR) was examined in cutaneous lymphoid infiltrates of 12 patients with lichen ruber planus (LP) and 10 individuals with discoid lupus erythematosus (DLE). The cell infiltrates in both conditions were generally of considerable size. The vast majority of the infiltrating cells were T cells. The reactivity of the anti-IL2 receptor antibody used was confined to lymphocytes. In patients with LP 26 +/- 17% of the infiltrating cells were IL2 receptor positive, 20 +/- 8% carried transferrin receptors and greater than 90% HLA-DR. In patients with DLE less than 1% were IL2 receptor positive, less than 5% carried transferrin receptors and greater than 90% were HLA-DR positive. These data indicate that IL2 receptor expression distinguishes the infiltrating T-lymphocytes in LP and DLE, although in both conditions the vast majority of the infiltrating cells were activated as revealed by their expression of HLA-DR.[1]References
- Expression of lymphocyte activation markers in benign cutaneous T cell infiltrates. Discoid lupus erythematosus versus lichen ruber planus. Sundqvist, K.G., Wanger, L. Acta Derm. Venereol. (1989) [Pubmed]
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