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Journal of Experimental Medicine, Vol 170, 309-314, Copyright © 1989 by Rockefeller University Press
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T Bieber, A Rieger, C Neuchrist, JC Prinz, EP Rieber, G Boltz-Nitulescu, O Scheiner, D Kraft, J Ring and G Stingl
Department of Dermatology, University of Munich, Federal Republic of Germany.
Human rIL-4 and human rIFN-gamma are able to induce the expression of the low affinity receptor for IgE (Fc epsilon R2/CD23) on normal human epidermal Langerhans cells, whereas IL-2 and PMA have no effect. A synergistic effect is observed when both cytokines are combined. These receptors are synthesized de novo by the LC since cycloheximide completely inhibits the appearance of Fc epsilon R2/CD23. Fc epsilon R2/CD23+ LC may have a major role in the pathogenesis of atopic eczema, as well as in the regulation of IgE synthesis.
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