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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

  • DOI - Digital Object Identifier

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

Result continuities

  • Project

  • 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

  • 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

  • UT code for WoS article

  • EID of the result in the Scopus database