Boosting the effects of hyperthermia-based anticancer treatments by HSP90 inhibition
| Autor: | Przemek M. Krawczyk, Lianne E.M. Vriend, Nathalie van den Tempel, Frederique J. Pieterson, Arlene L. Oei, Nicolaas A. P. Franken, Roland Kanaar, Mike L’Acosta |
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| Přispěvatelé: | Graduate School, Cell Biology and Histology, CCA - Cancer biology and immunology, Radiotherapy, Center of Experimental and Molecular Medicine, Cancer Center Amsterdam, Medical Biology, Molecular Genetics |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Oncology Hyperthermia medicine.medical_specialty Pathology Radiobiology DNA repair ganetespib Ganetespib Chemosensitizer thermotolerance Hsp90 inhibitor 03 medical and health sciences 0302 clinical medicine In vivo Internal medicine Medicine business.industry HSP90 inhibition Hyperthermia Treatment hyperthermia medicine.disease 030104 developmental biology 030220 oncology & carcinogenesis business Research Paper |
| Zdroj: | Oncotarget, 8(57), 97490-97503. Impact Journals Oncotarget, 8(57), 97490-97503. Impact Journals LLC Oncotarget |
| ISSN: | 1949-2553 |
| DOI: | 10.18632/oncotarget.22142 |
| Popis: | // Lianne E.M. Vriend 1, 2, 3, * , Nathalie van den Tempel 4, * , Arlene L. Oei 2, 3, * , Mike L’Acosta 1 , Frederique J. Pieterson 1 , Nicolaas A.P. Franken 2, 3 , Roland Kanaar 4 and Przemek M. Krawczyk 1, 2, 3 1 Department of Medical Biology, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands 2 Department of Radiation Oncology, Laboratory of Experimental Oncology and Radiobiology (LEXOR), Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands 3 Cancer Center Amsterdam, Meibergdreef 15, 1105 AZ Amsterdam, The Netherlands 4 Department of Molecular Genetics, Cancer Genomics Center Netherlands, Department of Radiation Oncology, Erasmus Medical Center, ‘s-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands * These authors have contirbuted equally to this work Correspondence to: Przemek M. Krawczyk, email: p.krawczyk@amc.uva.nl Keywords: hyperthermia; HSP90 inhibition; DNA repair; thermotolerance; ganetespib Received: July 22, 2017 Accepted: August 26, 2017 Published: October 27, 2017 ABSTRACT Hyperthermia – application of supra-physiological temperatures to cells, tissues or organs – is a pleiotropic treatment that affects most aspects of cellular metabolism, but its effects on DNA are of special interest in the context of cancer research and treatment. Hyperthermia inhibits repair of various DNA lesions, including double-strand breaks (DSBs), making it a powerful radio- and chemosensitizer, with proven clinical efficacy in therapy of various types of cancer, including tumors of head and neck, bladder, breast and cervix. Among the challenges for hyperthermia-based therapies are the transient character of its effects, the technical difficulties in maintaining uniformly elevated tumor temperature and the acquisition of thermotolerance. Approaches to reduce or eliminate these challenges could simplify the application of hyperthermia, boost its efficacy and improve treatment outcomes. Here we show that a single, short treatment with a relatively low dose of HSP90 inhibitor Ganetespib potentiates cytotoxic as well as radio- and chemosensitizing effects of hyperthermia and reduces thermotolerance in cervix cancer cell lines. Ganetespib alone, applied at this low dose, has virtually no effect on survival of non-heated cells. Our results thus suggest that HSP90 inhibition can be a safe, simple and efficient approach to improving hyperthermia treatment efficacy and reducing thermotolerance, paving the way for in vivo studies. |
| Databáze: | OpenAIRE |
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