The epigenetic and physiological mechanisms that alter the structure of chromatin include the methylation of DNA, changes in the histones, and changes in RNA. A literature review has been carried out using PubMed on the evidence published on the association between epigenetics and colorectal cancer. The scientific literature shows that epigenetic changes, such as genetic modifications may be very significant in the origin of neoplastic disease, contributing both to the development and progression of the disease.
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