Počet záznamů: 1  

Tumor growth accelerated by chemotherapy-induced senescent cells is suppressed by treatment with IL-12 producing cellular vaccines

  1. 1. 0473062 - UMG-J 2017 RIV US eng J - Článek v odborném periodiku
    Šímová, Jana - Sapega, Olena - Imrichová, Terezie - Štěpánek, Ivan - Kyjacová, Lenka - Mikyšková, Romana - Indrová, Marie - Bieblová, Jana - Bubeník, Jan - Bartek, Jiří - Hodný, Zdeněk - Reiniš, Milan
    Tumor growth accelerated by chemotherapy-induced senescent cells is suppressed by treatment with IL-12 producing cellular vaccines.
    OncoTarget. Roč. 7, č. 34 (2016), s. 54952-54964. ISSN 1949-2553
    Grant CEP: GA MZd NT14461
    Institucionální podpora: RVO:68378050
    Klíčová slova: cellular senescence * cancer chemotherapy * docetaxel * IL-12 * cell therapy
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 5.168, rok: 2016

    Standard-of-care chemo-or radio-therapy can induce, besides tumor cell death, also tumor cell senescence. While senescence is considered to be a principal barrier against tumorigenesis, senescent cells can survive in the organism for protracted periods of time and they can promote tumor development. Based on this emerging concept, we hypothesized that elimination of such potentially cancer-promoting senescent cells could offer a therapeutic benefit. To assess this possibility, here we first show that tumor growth of proliferating mouse TC-1 HPV-16-associated cancer cells in syngeneic mice becomes accelerated by co-administration of TC-1 or TRAMP-C2 prostate cancer cells made senescent by pre-treatment with the anti-cancer drug docetaxel, or lethally irradiated. Phenotypic analyses of tumor-explanted cells indicated that the observed acceleration of tumor growth was attributable to a protumorigenic environment created by the co-injected senescent and proliferating cancer cells rather than to escape of the docetaxel-treated cells from senescence. Notably, accelerated tumor growth was effectively inhibited by cell immunotherapy using irradiated TC-1 cells engineered to produce interleukin IL-12. Collectively, our data document that immunotherapy, such as the IL-12 treatment, can provide an effective strategy for elimination of the detrimental effects caused by bystander senescent tumor cells in vivo.
    Trvalý link: http://hdl.handle.net/11104/0270230