Archives of dermatology · 1994
Macrophages and tumor necrosis factor alpha in toxic epidermal necrolysis.
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Paquet P, Nikkels A, Arrese J E, Vanderkelen A, Piérard G E
Аннотация
BACKGROUND: We studied the immunopathologic characteristics of five cases of toxic epidermal necrolysis by using a large panel of antibodies.
OBSERVATIONS: The pattern and amount of the inflammatory cell infiltrate varied according to the stage of the disease. The main constant feature was the prominent involvement of the monocyte-macrophage lineage, including factor XIIIa+HLA-DR+ dendrocytes and CD68+ Mac 387+ macrophages, before and during the epidermal necrosis. The number of CD4+ and CD8+ lymphocytes was comparatively small. This was associated with a dense labeling of the epidermis for tumor necrosis factor alpha.
CONCLUSIONS: Cells of the monocyte-macrophage lineage largely outnumber lymphocytes in the lesions of toxic epidermal necrolysis. Tumor necrosis factor alpha is likely a major cytokine that is responsible for necrosis.
OBSERVATIONS: The pattern and amount of the inflammatory cell infiltrate varied according to the stage of the disease. The main constant feature was the prominent involvement of the monocyte-macrophage lineage, including factor XIIIa+HLA-DR+ dendrocytes and CD68+ Mac 387+ macrophages, before and during the epidermal necrosis. The number of CD4+ and CD8+ lymphocytes was comparatively small. This was associated with a dense labeling of the epidermis for tumor necrosis factor alpha.
CONCLUSIONS: Cells of the monocyte-macrophage lineage largely outnumber lymphocytes in the lesions of toxic epidermal necrolysis. Tumor necrosis factor alpha is likely a major cytokine that is responsible for necrosis.