Abstract
T cells constitute a large population of cellular infiltrate in atopic dermatitis (AD) and a dysregulated, cytokine mediated immune response appears to be an important pathogenetic factor.The great majority of T cells homing to skin express CD45RO+ memory/effector phenotype and the skin-selective homing receptor, the cutaneous lymphocyte-associated antigen (CLA). Aeroallergens, food antigens, autoantigens and bacterial superantigens activate T cells in AD. Continuous Stimulation of T cells in lymphatic organs and skin plays an important role in AD with induction of hyper IgE and eosinophilia. Activated T cells induce keratinocyte apoptosis as a key pathogenetic event in the formation of eczema. To mediate these effector functions after skin homing, activated T cells show continuous survival in the skin. Activât ion-induced cell death of T cells (AICD) is prevented by cytokines and extracellular matrix components in the eczematous skin.
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Akdis, M., Trautmann, A., Klunker, S., Blaser, K., Akdis, C.A. (2002). T Cells and Effector Mechanisms in Atopic Dermatitis. In: Ring, J., Behrendt, H. (eds) New Trends in Allergy V. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55994-5_16
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DOI: https://doi.org/10.1007/978-3-642-55994-5_16
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