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Br J Haematol. 1995 Dec;91(4):927-31.

Expression of the human OX40 (hOX40) antigen in normal and neoplastic tissues.

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Institute of Pathology, Klinikum Benjamin Franklin, Free University of Berlin, Germany.


The Ber-ACT35 mAb was raised against the human T-cell lymphotrophic virus (HTLV) 1-transformed, CD4+ HUT 102 cell line and recognizes the human homologue of the OX40 (hOX40) antigen. The analysis of the expression of hOX40 by immunohistochemical techniques in malignant lymphomas, carcinomas and non-malignant tissues of different organs shows that hOX40 expression was almost completely restricted to T lymphocytes. Besides T cells only a small subpopulation of macrophages in Langerhans' cell histiocytosis and a few blasts in B-cell non-Hodgkin's lymphoma (B-NHL) revealed a faint immunostaining with the Ber-ACT35 mAb. Furthermore, most of the hOX40+ T-cells are CD4+.

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