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Exosomes are nano-sized vesicles of endocytic origin that are involved in cell-to-cell communication including shuttle RNA, mainly mRNA and microRNA. As exosomes naturally carry RNA between cells, these particles might be useful in gene cancer therapy to deliver therapeutic short interfering RNA (siRNA) to the target cells. Despite the promise of RNA(More)
Both genetic and epigenetic changes underlite the mechanisms of tumor initiation and progression. In the present study we analyze sox2 gene expression and its epigenetic regulation in primary cultures of malignant gliomas. The sox2 expression was detected in the vast majority (74%) of the investigated gliomas and absent in morphologically normal brain(More)
The p21/Waf1 protein is one of the main regulators of cell cycle arrest and one of the best-known transcriptional targets of the TP53 protein. Here, we demonstrated that there is activation of expression of the p21/Waf1 gene when the cells were treated with sodium butyrate (NaBu), which is a natural histone deacetylase inhibitor, and investigated whether(More)
p21/Waf1 protein is one of the main cell cycle arrest regulators and one of the most well-known transcriptional targets of TP53 protein. Here, we demonstrated the activation of expression of the p21/Waf1 gene when the cells were treated to sodium butyrate (NaBu)--one of the natural inhibitors of deacetylase, and investigated whether this phenomenon depends(More)
Both genetic and epigenetic changes underlie the mechanisms of tumor initiation and progression. In this study, we analyzed sox2 gene expression and its epigenetic changes in primary cultures of malignant gliomas. The sox2 expression was detected in most (74%) gliomas, but not in morphologically normal brain tissue. These facts point to relationships(More)
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