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The activity of our cells not only depends on the naked DNA sequence but also on the chemical marks that control the genetic material. The most recognized regulatory level in this field is epigenetics. This includes DNA methylation and post-translational modifications of histones that confer specificity to gene expression and determine the three-dimensional conformation of our genome. A second component would be RNA modifications, a field known as epitranscriptomics. Chemical changes in both coding and messenger RNAs determine the activity of these molecules. Both the epigenome and epitranscriptome undergo profound alterations in disease, particularly in cancer. However, since these are plastic and dynamic chemical modifications, it is possible to reverse them using different pharmacological principles. Epigenetic drugs, such as DNA methylation inhibitors and histone deacetylase inhibitors, have already been approved for clinical use in oncology. Epitranscriptomic drugs will be the next to achieve this goal. Keywords: drugs; epigenetics; methylation; acetylation; epitranscriptomics; cancer
Manel Esteller Badosa (Sun,) studied this question.