Immunotoxicology studies two different effects of xenobiotics: immunosuppre
ssion and dysregulation of immune responses leading to hypersensitivity or
autoimmunity. The skin is a major target organ of immunotoxicity which is p
rovoked by small-molecular-weight compounds. Methods may be helpful for imm
unotoxicological investigations and screenings for adverse effects of xenob
iotics which are used for diagnosis or studies on the pathophysiology of sk
in disorders such as allergic contact dermatitis, cutaneous drug-allergic r
eactions or autoimmune diseases of the skin. Examples include well-designed
patch tests, assays involving antigen-presenting cells such as dendritic c
ells, but also T lymphocytes, basophiles or keratinocytes. Copyright (C) 20
01 S. Karger AG, Basel.