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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Mechanisms of phenotypic plasticity induced by genotoxic stress
 Přibyl, Miroslav ; Hodný, Zdeněk (advisor) ; Remešová, Hana (referee) ; Vomastek, Tomáš (referee)
Therapy resistance of malignant cells represents the main reason responsible for the failure of cancer therapy. The growth of malignant cells at primary tumour sites but most importantly the dissemination of tumour cells and their growth at secondary sites, are the main reasons why patients eventually succumb to the disease. Even novel immune-based therapies find their limitation in most tumour types. The therapy resistance is mediated by the tumour cells but also by other cellular components of the tumour microenvironment. Understanding the tumour cells mechanisms and the tumour microenvironment features responsible for therapy resistance enables the development of novel therapeutic strategies. Here, we show that ionizing irradiation, 5-azacytidine, and IFNγ treatments induced expression of suprabasin (SBSN) and therapy-resistant low-adherent phenotype in cancer cells. Knockdown of SBSN resulted in suppression of the phenotype. Next, we identified aberrantly elevated SBSN in the bone marrow of a subgroup of myelodysplastic syndromes (MDS) patients. SBSN was expressed by myeloid-derived suppressor cells (MDSCs) and showed significant anti-correlation with T cell abundance and CCL2 levels, hence promises a prognostic value in clinical use. We compiled the most of the relevant knowledge of SBSN...
Detailed record
Mechanisms of phenotypic plasticity induced by genotoxic stress
 Přibyl, Miroslav ; Hodný, Zdeněk (advisor) ; Remešová, Hana (referee) ; Vomastek, Tomáš (referee)
Therapy resistance of malignant cells represents the main reason responsible for the failure of cancer therapy. The growth of malignant cells at primary tumour sites but most importantly the dissemination of tumour cells and their growth at secondary sites, are the main reasons why patients eventually succumb to the disease. Even novel immune-based therapies find their limitation in most tumour types. The therapy resistance is mediated by the tumour cells but also by other cellular components of the tumour microenvironment. Understanding the tumour cells mechanisms and the tumour microenvironment features responsible for therapy resistance enables the development of novel therapeutic strategies. Here, we show that ionizing irradiation, 5-azacytidine, and IFNγ treatments induced expression of suprabasin (SBSN) and therapy-resistant low-adherent phenotype in cancer cells. Knockdown of SBSN resulted in suppression of the phenotype. Next, we identified aberrantly elevated SBSN in the bone marrow of a subgroup of myelodysplastic syndromes (MDS) patients. SBSN was expressed by myeloid-derived suppressor cells (MDSCs) and showed significant anti-correlation with T cell abundance and CCL2 levels, hence promises a prognostic value in clinical use. We compiled the most of the relevant knowledge of SBSN...
Detailed record

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