Current limitations and future opportunities for epigenetic therapies
F Cherblanc1, N Chapman-Rothe, R Brown
1Imperial College London, South Kensington Campus, Department of Chemistry, London SW7 2AZ, UK.
Future Medicinal Chemistry
|March 16, 2012
Summary
Epigenetic therapies offer new cancer treatment avenues by reversing aberrant gene expression. Histone lysine methyltransferases represent a promising, yet unexploited, therapeutic target for developing novel small-molecule inhibitors.
Area of Science:
- Oncology
- Epigenetics
- Pharmacology
Background:
- Cancer is characterized by widespread epigenetic alterations affecting gene expression.
- Epigenetic changes can be reversed using small-molecule inhibitors targeting epigenetic maintenance enzymes.
- Current epigenetic drugs show efficacy in hematological cancers but limited success in solid tumors.
Purpose of the Study:
- To review advancements in epigenetic cancer therapies.
- To identify promising epigenetic targets for improved cancer treatment.
- To discuss challenges and future directions in epigenetic therapy development.
Main Methods:
- Review of current literature on epigenetic therapies and cancer.
- Analysis of the role of epigenetic modifications in cancer hallmarks.
- Examination of small-molecule inhibitors targeting epigenetic enzymes.
- Discussion of crystallographic studies on histone lysine methyltransferases.
Main Results:
- DNA-demethylating agents and histone deacetylase inhibitors demonstrate anti-tumor activity in certain hematological malignancies.
- The efficacy of current epigenetic therapies in solid tumors remains uncertain.
- Histone lysine methyltransferases are identified as a highly promising epigenetic target for cancer therapy.
Conclusions:
- Epigenetic therapies hold potential for improving cancer treatment.
- Challenges in drug delivery, pharmacodynamic response, and therapeutic index need to be addressed.
- Histone lysine methyltransferases offer a novel target for developing effective small-molecule inhibitors for cancer treatment.
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