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Abstract
Therapeutic approaches aimed at developing epigenetically-effective drugs are under intense investigation. Several classes of enzymes regulating histone acetylation and DNA methylation, which are required for epigenetic transitions, offer attractive targets for therapeutic interventions [1,2]. Imbalances in histone acetylation and DNA methylation may play a significant role in the development of cancer and leukaemia and may provide a mechanistic rationale for targeting epigenetic modifications. Clinical trials designed to evaluate inhibitors of DNA methylation and histone deacetylase inhibitors are showing encouraging results in cancer patients. A growing quantity of data from preclinical research supports the notion that epigenetically-effective drugs could also find an application in other therapeutic areas. A number of emerging biomarkers may prove useful for monitoring drug effects and defining molecular signatures of response, toxicity and effective dose.