Journal
CURRENT MEDICINAL CHEMISTRY
Volume 19, Issue 25, Pages 4218-4238Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/092986712802884286
Keywords
Chromatin remodeling; histone acetylation; histone deacetylase; histone deacetylase inhibitor; anticancer drugs; DNA-damaging drugs; ionizing radiation; combined treatment modalities; mechanisms of combined treatment; apoptosis
Funding
- Grant Agency of the Czech Republic [P301/10/0356]
- CEITEC [CZ.1.05/1.1.00/02.0068]
- Charles University in Prague [42]
- Operational Program Research & Development for innovation
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Histone deacetylase (HDAC) inhibitors are a group of anticancer drugs which cause growth arrest and apoptosis of several tumor cells. HDAC inhibitors have been also found to increase the anticancer efficacy of several treatment modalities i.e. chemotherapy or radiotherapy. Here, we review the literature on combinations of HDAC inhibitors both with ionizing radiation and with other drugs, highlighting DNA-damaging compounds. The results of numerous studies with several types of cancer cells discussed in this review demonstrate that HDAC inhibitors enhance the effect of DNA damaging agents, such as inhibitors of topoisomerases, inhibitors of DNA synthesis, DNA-intercalators and agents covalently modifying DNA (i.e. doxorubicin, etoposid, 5-fluorouracil, cisplatin, melphalan, temozolomide and ellipticine) or of irradiation. Hence, the use of HDAC inhibitors combined with these antitumor drugs or ionizing radiation is a promising tool which may make treatment of patients suffering from many types of cancer more efficient. Several molecular mechanisms are responsible for the observed higher sensitivity of tumor cells towards therapeutic agents elicited by HDAC inhibitors. These mechanisms are discussed also in this review.
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