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[Lymphocytes, Langerhans cells and CD68-positive monocytes/macrophages in the skin of HIV-infected patients and normal controls].

Human epidermal Langerhans cells play an important role in the immunoregulation of the skin. We measured the numbers of CD(3+)-, CD(8+)-, CD1a(+)-, HLADR(+)-, IL2R(+)-, CD(4+)- and CD68 positive cells in the skin of 8 asymptomatic HIV-infected Persons, 3 Patients with AIDS and 11 healthy volunteers by suction blister technique. Our results indicate increased numbers of CD1a+ cells and increased numbers of CD4+ cells in the epidermis in asymptomatic HIV-infection. At the same time CD68+ cells are decreased already in an early stage of HIV-Infection. The number of CD1a/CD4+ cells is related to the degree of immunodeficiency. This fact might be caused by the activation of MPS.