Apoptosis induction by iron deprivation in tumor cells: role of mitochondria and caspases.

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Apoptosis induction by iron deprivation in tumor cells: role of mitochondria and caspases.

Popis výsledku v původním jazyce

Iron deprivation specifically induces apoptosis in some tumor cells while other tumor cells are resistant. We have shown previously that the p53 pathway, including p53 activation and subsequent regulation of the expression of relevant genes of the bcl-2family such as bax and bcl-2, is not involved in apoptosis induction by iron deprivation. In the present study we compared the activity of caspase-3 and caspase-9 in sensitive (38C13) versus resistant (EL4) cells under control and iron-depriving conditions. Iron deprivation resulted in a significant increase of the caspase-3 activity in sensitive but not in resistant cells. Similarly, we detected caspase-9 activation under iron deprivation in sensitive but not in resistant cells. We also compared the distribution of some proteins of the Bcl-2 family in sensitive versus resistant cells under control and iron-depriving conditions. Confocal microscopy revealed that iron deprivation resulted in Bax protein translocation from the cytosol to

Název v anglickém jazyce

Apoptosis induction by iron deprivation in tumor cells: role of mitochondria and caspases.

Popis výsledku anglicky

Iron deprivation specifically induces apoptosis in some tumor cells while other tumor cells are resistant. We have shown previously that the p53 pathway, including p53 activation and subsequent regulation of the expression of relevant genes of the bcl-2family such as bax and bcl-2, is not involved in apoptosis induction by iron deprivation. In the present study we compared the activity of caspase-3 and caspase-9 in sensitive (38C13) versus resistant (EL4) cells under control and iron-depriving conditions. Iron deprivation resulted in a significant increase of the caspase-3 activity in sensitive but not in resistant cells. Similarly, we detected caspase-9 activation under iron deprivation in sensitive but not in resistant cells. We also compared the distribution of some proteins of the Bcl-2 family in sensitive versus resistant cells under control and iron-depriving conditions. Confocal microscopy revealed that iron deprivation resulted in Bax protein translocation from the cytosol to

Druh

D - Stať ve sborníku

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Abstracts of the 25th Meeting of the European Study Group for Cell Proliferation (ESGCP).

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

2

Název nakladatele

Blackwell Publishing

Místo vydání

UK

Místo konání akce

Reims [FR]

Datum konání akce

24. 10. 2002

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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