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CD133-positive cells are resistant to TRAIL due to up-regulation of FLIP

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652036%3A_____%2F08%3A00313828" target="_blank" >RIV/86652036:_____/08:00313828 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    CD133-positive cells are resistant to TRAIL due to up-regulation of FLIP

  • Original language description

    Recent research shows that cancer stem cells (CSCs) are relatively resistant to apoptosis induction. We studied the effect of the immunological apoptogen TRAIL on Jurkat cells enriched in the CD133-positive population. CD133 high Jurkat cells were more resistant to apoptosis than their CD133 low counterparts, and showed higher level of expression of FLIP, an inhibitor of death receptor-mediated apoptosis. Breast cancer MCF7 cells showed high level of expression CD133 in the unseparated culture, with accompanying high level of FLIP. Down-regulation of FLIP by siRNA resulted in sensitisation of the cells to TRAIL, as documented by more robust apoptosis. We conclude that high expression of FLIP is at least one of the reasons for resistance of CSCs to apoptosis induced by the death ligand TRAIL

  • Czech name

    CD133-pozitivní buňky jsou rezistentní k TRAIL díky zvýšené expresi FLIP

  • Czech description

    Současné výzkumy ukazují, že rakovinné kmenové buňky jsou relativně rezistentní k indukci apoptózy. Studovali jsme vliv imunologického apoptogenu TRAIL na Jurkat buňky obohacené v populaci CD133-pozitivních buněk. CD133high Jurkat buňky byly mnohem odolnější k apoptóze než jejich CD133low protějšky a vykazovaly vyšší hladinu exprese FLIP, inhibitoru apoptózy zprostředkované receptorem smrti. MCF7 buňky rakoviny prsu vykazovaly vyšší hladinu exprese CD133 v neseparované kultuře spolu s vyšší hladinou FLIP. Exprese FLIP snížená siRNA vedla k senzitizaci buněk k TRAIL, jak bylo patrné z mnohem silnější apoptózy. Učinili jsme závěr, že vysoká exprese FLIP je přinejmenším jeden z důvodů rezistence rakovinných kmenových buněk k apoptóze indukované ligandem smrti TRAIL

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

    <a href="/en/project/IAA500520702" target="_blank" >IAA500520702: A novel model of apoptosis initiation by "mitocans"</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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

    Biochemical and Biophysical Research Communications

  • ISSN

    0006-291X

  • e-ISSN

  • Volume of the periodical

    373

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    5

  • Pages from-to

  • UT code for WoS article

    000258208500021

  • EID of the result in the Scopus database