
Macrophages and Tumor Necrosis Factor in Toxic Epidermal Necrolysis
Philippe Paquet, MD;
Arjen Nikkels, MD;
Jorge E. Arrese, MD;
Alain Vanderkelen, MD;
Gerald E. Piérard, MD
Arch Dermatol. 1994;130(5):605-608.
Abstract
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 ne- crosis. The number of CD4+ and CD8+ lymphocytes was comparatively small. This was associated with a dense labeling of the epidermis for tumor necrosis factor a.
Conclusions Cells of the monocyte-macrophage lineage largely outnumber lymphocytes in the lesions of toxic epidermal necrolysis. Tumor necrosis factor a is likely a major cytokine that is responsible for necrosis.
(Arch Dermatol. 1994;130:605-608)
Author Affiliations
From the Department of Dermatopathology, University of Liège (Belgium) (Drs Paquet, Nikkels, Arrese, and Piérard) and the Center for Burn Patients, Brussels (Belgium) Military Hospital (Dr Vanderkelen).
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