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Lang, M.* ; Oostendorp, R.A.J. ; Simons, P.J.* ; Boersma, W.J.A.* ; Knegt, P.P.M.* ; Van Ewijk, W.*

New monoclonal antibodies against the putative immunosuppressive site of retroviral p15E.

Cancer Res. 54, 1831-1836 (1994)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Both retroviral infections as well as human tumors may cause immunosuppression. One of the factors involved in immunosuppression in patients with squamous cell carcinoma of the head and neck (SCC-HN) is a protein related in the retroviral protein p15E. A conserved, 17-amino acid sequence represents the immunosuppressive epitope of retroviral p15E. In order to study the relationship between SCC-HN associated immunosuppression and retroviral p15E, we produced three new monoclonal antibodies (MAbs: ER- IS1, ER-IS2, and ER-185) directed against the immunosuppressive synthetic CKS-17 peptide. These MAbs react with the immunosuppressive peptide (in enzyme-linked immunosorbent assay), with human tumor cell lines (in FACScan analysis), with retroviral p15E (on Western blot), and with cryostat sections of SCC-HN tumor tissue. In addition, the MAbs neutralize the immunosuppressive low molecular weight factors present in sera of patients with SCC-HN. These results show that retroviral p15E and the immunosuppressive factors associated with SCC-HN share a conserved immunosuppressive epitope and that MAbs against this epitope can be used for detection and centralization of the tumor-associated immunosuppressive protein(s).
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
ISSN (print) / ISBN 0008-5472
e-ISSN 1538-7445
Journal Cancer Research
Quellenangaben Volume: 54, Issue: 7, Pages: 1831-1836 Article Number: , Supplement: ,
Publisher American Association for Cancer Research (AACR)
Publishing Place Philadelphia, Pa.
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institut für Experimentelle Hämatologie