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American Journal of Pathology, Vol 142, 1714-1720, Copyright © 1993 by American Society for Investigative Pathology

REGULAR ARTICLES

Expression of interleukin-2R alpha and interleukin-2R beta in Hodgkin's disease

H Tesch, A Gunther, H Abts, M Jucker, S Klein, GR Krueger and V Diehl
Klinik I fur Innere Medizin, Universitat Koln, Germany.

Hodgkin and Reed-Sternberg cells, the putative malignant cells of Hodgkin's disease (HD), carry regularly the CD25 antigen that forms one chain of the interleukin-2 (IL-2) receptor (IL-2R alpha). To analyze the putative role of IL-2R expression in Hodgkin's disease, we have investigated the expression of both IL-2R alpha and IL-2R beta chains in HD-derived cell lines and in primary specimens from patients with HD. Expression of IL-2R alpha and IL-2R beta was detected in all HD- derived cell lines. In addition, soluble IL-2R alpha molecules were demonstrated in the supernatants of three of these cultured cell lines. In primary tissues, IL-2R alpha and IL-2R beta were seen in some but not all cases. Staining was detected in Hodgkin and Reed-Sternberg and in lymphoid cells. There was a remarkable difference in the pattern of expression, in that IL-2R alpha- but not IL-2R beta-positive cells from HD patients were clustered in frozen sections. We conclude from these data that IL-2R expression might be involved in the biology of HD.

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