For the past 20 years, it has been known that preparations of Tumor Necrosis Factor alpha (TNF) fail to induce apoptosis due to cytoprotective responses that render cells resistant to its cytotoxic activity. Here we show that TRAF-2(-/-) embryonic fibroblasts express reduced levels of the anti-apoptotic molecule c-FLIP due to extensive degradation of the protein. Reconstitution of TRAF-2(-/-) EF with c-FLIP is sufficient for resistance to TNF toxicity. Our results strengthen the role of c-FLIP in protecting cells from the cytotoxic effect of TNF and have implication for the treatment of inflammatory and proliferative disorders.

c-FLIP efficiently rescues TRAF-2(-/-) cells from TNF-induced apoptosis / Guiet, C; Silvestri, E; DE SMAELE, Enrico; Franzoso, G; Vito, P.. - In: CELL DEATH AND DIFFERENTIATION. - ISSN 1350-9047. - STAMPA. - 9:(2002), pp. 138-144. [10.1038/sj/cdd/4400947]

c-FLIP efficiently rescues TRAF-2(-/-) cells from TNF-induced apoptosis

DE SMAELE, Enrico;
2002

Abstract

For the past 20 years, it has been known that preparations of Tumor Necrosis Factor alpha (TNF) fail to induce apoptosis due to cytoprotective responses that render cells resistant to its cytotoxic activity. Here we show that TRAF-2(-/-) embryonic fibroblasts express reduced levels of the anti-apoptotic molecule c-FLIP due to extensive degradation of the protein. Reconstitution of TRAF-2(-/-) EF with c-FLIP is sufficient for resistance to TNF toxicity. Our results strengthen the role of c-FLIP in protecting cells from the cytotoxic effect of TNF and have implication for the treatment of inflammatory and proliferative disorders.
2002
TNF; apoptosis; c-flip; TRAF-2; fibroblasts
01 Pubblicazione su rivista::01a Articolo in rivista
c-FLIP efficiently rescues TRAF-2(-/-) cells from TNF-induced apoptosis / Guiet, C; Silvestri, E; DE SMAELE, Enrico; Franzoso, G; Vito, P.. - In: CELL DEATH AND DIFFERENTIATION. - ISSN 1350-9047. - STAMPA. - 9:(2002), pp. 138-144. [10.1038/sj/cdd/4400947]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/145366
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