Increased uptake of zinc in malignant cells is associated with enhanced activation of MAPK signaling and p53-dependent cell injury
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11150%2F08%3A00106862" target="_blank" >RIV/00216208:11150/08:00106862 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Increased uptake of zinc in malignant cells is associated with enhanced activation of MAPK signaling and p53-dependent cell injury
Original language description
Excess intracellular zinc has been demonstrated to be responsible for cell injury and cell death in various experimental as well as clinical models. While the cells possess a system of mechanisms regulating intracellular zinc homeostasis, their saturation by acutely increased zinc levels or by a sustained exposure to elevated zinc levels results in liberation of free zinc stores within the cells and ultimate cell damage and cell death. Here we report that in Hep-2 malignant cells enhanced uptake of zinccauses activation of mitogen-activated protein kinase (MAPK) signaling with resulting p53-dependent cell injury which can be significantly prevented by specific p53 inhibition and by prevention of oxidative stress. Our observations are consistent with the view that subacutely increased intracellular free zinc levels stimulate via oxidative stress p53-dependent pathways which are responsible for the final cell damage in tumor cells.
Czech name
Zvýšený vstup zinku do maligních buněk je spojen s aktivací MAPK a vznikem na p53 závislém buněčném poškození
Czech description
V této práci se zaměřujeme na studium účinků zvýšených intracelulárních koncentrací zinku a jejich vlivem na aktivaci MAPK signalizace s následným buněčným poškozením závislým na p53. Závěry této studie podporují naše hypotézy o tom, že subakutně zvýšenéhladiny intracelulárního zinku stimulují oxidativní stres a následně na p53 závislé dráhy, které jsou odpovědné za finální buněčné poškození pozorované u nádorových buněk.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Medica (Hradec Králové)
ISSN
1211-4286
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
1
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
7
Pages from-to
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UT code for WoS article
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EID of the result in the Scopus database
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