Histone deacetylase inhibitor and demethylating agent chromatin compaction and the radiation response by cancer cells
It now appears that epigenetics plays a central role in transformation, both in vitro and in vivo. The expression and regulation of DNA methylation and the subsequent chromatin structure are significantly altered in tumor cells, suggesting a direct role in the process of in vivo cellular transformat...
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| Veröffentlicht in: | The cancer journal (Sudbury, Mass.) Mass.), 2007-01, Vol.13 (1), p.65-69 |
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| container_title | The cancer journal (Sudbury, Mass.) |
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| creator | Bar-Sela, Gil Jacobs, Kristi Muldoon Gius, David |
| description | It now appears that epigenetics plays a central role in transformation, both in vitro and in vivo. The expression and regulation of DNA methylation and the subsequent chromatin structure are significantly altered in tumor cells, suggesting a direct role in the process of in vivo cellular transformation. If epigenetics and posttranslational modifications of histones play a role in transformation, then it seems logical that the genes regulating chromatin compaction may also be molecular targets and markers in profiling tumor cell resistance. Local remodeling of chromatin is a key step in the regulation of gene expression, and altering the expression of these genes might also favorably alter how tumor cells respond to anticancer agents. Several new agents that alter chromatin compaction, either methyltransferase or histone deacetylases inhibitors, are progressing through clinical trials and have shown promising preclinical interactions when combined with radiation. In this review, we discuss the potential for histone deacetylases inhibitors as radiosensitizing agents. |
| doi_str_mv | 10.1097/PPO.0b013e31803c7565 |
| format | Article |
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The expression and regulation of DNA methylation and the subsequent chromatin structure are significantly altered in tumor cells, suggesting a direct role in the process of in vivo cellular transformation. If epigenetics and posttranslational modifications of histones play a role in transformation, then it seems logical that the genes regulating chromatin compaction may also be molecular targets and markers in profiling tumor cell resistance. Local remodeling of chromatin is a key step in the regulation of gene expression, and altering the expression of these genes might also favorably alter how tumor cells respond to anticancer agents. Several new agents that alter chromatin compaction, either methyltransferase or histone deacetylases inhibitors, are progressing through clinical trials and have shown promising preclinical interactions when combined with radiation. 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| identifier | ISSN: 1528-9117 |
| ispartof | The cancer journal (Sudbury, Mass.), 2007-01, Vol.13 (1), p.65-69 |
| issn | 1528-9117 1540-336X |
| language | eng |
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| source | MEDLINE; Journals@Ovid Complete |
| subjects | Chromatin Assembly and Disassembly - drug effects Chromatin Assembly and Disassembly - radiation effects DNA Methylation - drug effects DNA Methylation - radiation effects Drug Resistance, Neoplasm - drug effects Drug Resistance, Neoplasm - radiation effects Enzyme Inhibitors - pharmacology Epigenesis, Genetic - drug effects Histone Deacetylase Inhibitors Humans Neoplasms - radiotherapy Radiation-Sensitizing Agents - pharmacology |
| title | Histone deacetylase inhibitor and demethylating agent chromatin compaction and the radiation response by cancer cells |
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