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[Cytokine regulated expression of Fas-Ligand by colon carcinoma cells]
S Wimmenauer1, P K Baier, A Steiert
1Abteilung Allgemeine Chirurgie mit Poliklinik, Universitätsklinik Freiburg.
Langenbecks Archiv Fur Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft Fur Chirurgie. Kongress
|February 5, 1999
Abstract:
We studied the proliferative response of tumor-infiltrating lymphocytes (TIL) from colorectal carcinomas to rIL-2 as well as their cytotoxic activity which was reduced as compared to autologous peripheral blood lymphocytes. We observed TIL to be polyclonal and asked if Fas-ligand-expressing tumor cells are responsible for the elimination of specific T-cells. Therefore we studied the expression of Fas-ligand by LS174T colon carcinoma cells which we showed to be induced by cytokines.