About: Mitochondria Play a Central Role in Apoptosis Induced by R-Tocopheryl Succinate, an Agent with Antineoplastic Activity: Comparison with Receptor-Mediated Pro-Apoptotic Signaling.

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About: Mitochondria Play a Central Role in Apoptosis Induced by R-Tocopheryl Succinate, an Agent with Antineoplastic Activity: Comparison with Receptor-Mediated Pro-Apoptotic Signaling. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	a-Tocopheryl succinate (a-TOS) is a semisynthetic vitamin E analogue with high pro-apoptotic and anti-neoplastic activity [Weber, T et al. (2002) Clin. Cancer Res. 8, 863-869]. Previous studies suggested that it acts through destabilization of subcellular organelles, including mitochondria, but compelling evidence is missing. Cells treated with a-TOS showed altered mitochondrial structure, generation of free radicals, activation of the sphingomyelin cycle, relocalization of cytochrome c and Smac/Diablo, and activation of multiple caspases. A pan-caspase inhibitor suppressed caspase-3 and -6 activation and phosphatidyl serine externalization, but not decrease of mitochondrial membrane potential or generation of radicals. For a-TOS, but not Fas or TRAIL, apoptosis was suppressed by caspase-9 inhibition, while TRAIL- and Fas-resistant cells overexpressing cFLIP or CrmA were susceptible to a-TOS. The central role of mitochondria was confirmed by resistance of mtDNA-deficient cells to a-TOS, by regulation a-Tocopheryl succinate (a-TOS) is a semisynthetic vitamin E analogue with high pro-apoptotic and anti-neoplastic activity [Weber, T et al. (2002) Clin. Cancer Res. 8, 863-869]. Previous studies suggested that it acts through destabilization of subcellular organelles, including mitochondria, but compelling evidence is missing. Cells treated with a-TOS showed altered mitochondrial structure, generation of free radicals, activation of the sphingomyelin cycle, relocalization of cytochrome c and Smac/Diablo, and activation of multiple caspases. A pan-caspase inhibitor suppressed caspase-3 and -6 activation and phosphatidyl serine externalization, but not decrease of mitochondrial membrane potential or generation of radicals. For a-TOS, but not Fas or TRAIL, apoptosis was suppressed by caspase-9 inhibition, while TRAIL- and Fas-resistant cells overexpressing cFLIP or CrmA were susceptible to a-TOS. The central role of mitochondria was confirmed by resistance of mtDNA-deficient cells to a-TOS, by regulation (en)
Title	Mitochondria Play a Central Role in Apoptosis Induced by R-Tocopheryl Succinate, an Agent with Antineoplastic Activity: Comparison with Receptor-Mediated Pro-Apoptotic Signaling. Mitochondria Play a Central Role in Apoptosis Induced by R-Tocopheryl Succinate, an Agent with Antineoplastic Activity: Comparison with Receptor-Mediated Pro-Apoptotic Signaling. (en)
skos:prefLabel	Mitochondria Play a Central Role in Apoptosis Induced by R-Tocopheryl Succinate, an Agent with Antineoplastic Activity: Comparison with Receptor-Mediated Pro-Apoptotic Signaling. Mitochondria Play a Central Role in Apoptosis Induced by R-Tocopheryl Succinate, an Agent with Antineoplastic Activity: Comparison with Receptor-Mediated Pro-Apoptotic Signaling. (en)
skos:notation	RIV/68378050:_____/03:23033109!RIV/2003/AV0/A23003/N
http://linked.open.../vavai/riv/strany	4277;4291
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA5052905), P(LN00A026), Z(AV0Z5052915)
http://linked.open...iv/cisloPeriodika	14
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Anděra, Ladislav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav molekulární genetiky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	615658
http://linked.open...ai/riv/idVysledku	RIV/68378050:_____/03:23033109
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	a-TOS, TRAIL, apoptosis (en)
http://linked.open.../riv/klicoveSlovo	TRAIL apoptosis a-TOS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[75780FBC1BE6]
http://linked.open...i/riv/nazevZdroje	Biochemistry
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	15 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Center of molecular and cellular immunology Molecular cloning and functional characterization of the Wnt signaling pathway components in man
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	42
http://linked.open...iv/tvurceVysledku	Anděra, Ladislav Weber, T. Witting, P. K. Živný, J. Neužil, J. Weber, C. Higuchi, M. Gellert, N. Terman, A. Auge, N. Dalen, H. Lloret, A. Ne`gre-Salvayre, A. Plasilova, M. Sticha, M.
http://linked.open...n/vavai/riv/zamer	Regulace a signální cesty uplatňující se v genové expresi, imunitě, onkogenezi, replikaci virů, tvorbě buněčných struktur, chování buněk, vývoji a oplození
issn	0006-2960
number of pages	14 (xsd:int)

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