Expression of Epstein-Barr Virus Nuclear Antigen 1 Is Associated with Enhanced Expression of CD25 in the Hodgkin Cell Line L428 |
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| Authors: | D. Kube, M. Vockerodt, O. Weber, K. Hell, J. Wolf, B. Haier, F. A. Gr sser, N. Mü ller-Lantzsch, E. Kieff, V. Diehl, H. Tesch |
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| Affiliation: | D. Kube, M. Vockerodt, O. Weber, K. Hell, J. Wolf, B. Haier, F. A. Grässer, N. Müller-Lantzsch, E. Kieff, V. Diehl, and H. Tesch |
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| Abstract: | Epstein-Barr virus is associated with several human malignancies including Burkitt’s lymphoma, nasopharyngeal carcinoma, and Hodgkin’s disease (HD). To examine the effect of Epstein-Barr virus nuclear antigen 1 (EBNA-1) in the pathogenesis of HD, we transfected the gene into the HD cell line L428. EBNA-1 expression was associated with significantly enhanced CD25 expression (interleukin 2 [IL-2]-receptor α chain) in transient and stably transfected L428 cells but did not affect the expression of IL-2 receptor β and γ chains. There was no up-regulation of the B-cell activation molecules CD23, CD30, CD39, CD40, CD44, CD71, and CD54 (intercellular adhesion molecule 1) or enhanced production of IL-6, IL-10, lymphotoxin alpha, and the soluble form of CD25. Stable EBNA-1-expressing L428 cells were nontumorigenic in SCID mice but showed enhanced lymphoma development in nonobese diabetic-SCID mice compared to mock-transfected cells. |
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