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Eichholtz-Wirth, H. ; Fritz, E. ; Wolz, L.

Overexpression of the 'silencer of death domain', SODD/BAG-4, modulates both TNFR1- and CD95-dependent cell death pathways.

Cancer Lett. 194, 81-89 (2003)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The involvement of SODD/BAG-4 was studied in TNFR1 signaling, using SODD/BAG-4- overexpressing HeLa cells as a cellular model. Stable transfection of a SODD/BAG-4 cDNA leads to increased levels of the full-length 70-kDa protein and additional C-terminal fragments as well as altered expression of BAG-1. Concomitantly, the protein amounts of both the TNFR1 and, unexpectedly, the CD95 receptors are elevated. These biochemical changes are paralleled and confirmed by a reduced cellular sensitivity to treatment with extracellular TNFα and CD95 ligand. Moreover, ATP depletion by oligomycin is less toxic in SODD/BAG-4 overexpressing clones. The radiosensitivity is reduced in some, but not in all of these clones. Our results indicate that SODD/BAG-4 is not only a silencer of TNFR1 but also a modulator of CD95 activity, regulating the balance of both death-promoting and -depressing signals.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter SODD/BAG-4; TNFR1; CD95; BAG-1; Radiation resistance
Sprache englisch
Veröffentlichungsjahr 2003
HGF-Berichtsjahr 0
ISSN (print) / ISBN 0304-3835
e-ISSN 0304-3835
Zeitschrift Cancer Letters
Quellenangaben Band: 194, Heft: 1, Seiten: 81-89 Artikelnummer: , Supplement: ,
Verlag Elsevier
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Molecular Radiation Biology (IMS)
Institute of Radiation Biology (ISB)
Forschungsfeld(er)
Radiation Sciences
PSP-Element(e) FE 70421
FE 70244
DOI 10.1016/S0304-3835(03)00009-0
Erfassungsdatum 2003-12-31
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