Content » Vol 72, Issue 5

Investigative Report

Immunophenotypical characterization of inflammatory cellular infiltrates in tinea.

Brasch J, Sterry W.
DOI: 10.2340/000155572345347


In order to elucidate the still poorly understood pathogenetic pathways of acute tinea, the inflammatory cellular infiltrates in this infection were analyzed. Lesional punch biopsies were cryostat-sectioned and stained with monoclonal antibodies for immunophenotypization of T cells, B cells, macrophages and activation markers. For each antibody the positively stained inflammatory cells in the dermis and in the epidermis were quantified separately. Most of the dermal mononuclear cells in acute tinea were identified as T helper lymphocytes of the memory type. Furthermore, considerable amounts of Langerhans' cells and macrophages were found, but virtually no B cells. A high proportion of cells expressed markers of activation. Within the epidermis, accumulations of Langerhans' cells and LeuM5+ dendritic macrophages were detected near fungal element. In view of the otherwise rather similar cellular infiltrates in acute tinea and different non-infectious dermatoses, acute tinea may be particularly suitable to study the functional relationship of Langerhans cells and LeuM5+ macrophages.


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