STAT-1-independent upregulation of FADD and procaspase-3 and -8 in cancer cells treated with cytotoxic drugs

Olivier Micheau, Arlette Hammann, Eric Solary, Marie Thérèse Dimanche-Boitrel

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59 Citations (Scopus)

Résumé

We have previously shown that treatment by anticancer drugs sensitized tumor cells to Fas (APO-1/ CD95)-mediated cell death. The present study demonstrates that the cytotoxic drugs cisplatin, doxorubicin and mitomycin C induce the accumulation of the Fas receptor, the FADD adaptor molecule, the procaspases-8, -3 and -2L and the proapoptotic molecule Bax in several human colon cancer cells. This upregulation is also observed in U3A myeloblastoma cells that do not express STAT-1, a transcription factor involved in the constitutive expression of procaspases. We conclude that anticancer drugs sensitize tumor cells to Fas-mediated cell death by a STAT-1-independent upregulation of molecules involved in this apoptotic pathway.

langue originaleAnglais
Pages (de - à)603-607
Nombre de pages5
journalBiochemical and Biophysical Research Communications
Volume256
Numéro de publication3
Les DOIs
étatPublié - 24 mars 1999
Modification externeOui

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