期刊
ENVIRONMENTAL EPIGENETICS
卷 2, 期 3, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/eep/dvw017
关键词
neurodevelopmental disorder; metabolic disorder; environmental stress; epigenetics: epigenome; preemptive medicine
资金
- Ministry of Education, Science, Sports and Culture (MEXT) [26293245, 15K15388]
- Japan Agency for Medical Research and Development (AMED)
- Grants-in-Aid for Scientific Research [26293245, 15K15388] Funding Source: KAKEN
Epigenetics is a gene regulation mechanism that does not depend on genomic DNA sequences but depends on chemical modification of genomic DNA and histone proteins around which DNA is wrapped. The failure of epigenetic mechanisms is known to cause various congenital disorders. It is also known that the failures of epigenetic mechanisms causes various acquired disorders since epigenetic modifications of the genome (i.e., epigenome) are more vulnerable to environmental stress, such as malnutrition, environmental chemicals, and mental stress, than the genome, especially during the early period of life. However, the epigenome has a reversible property since it is based on removable residues on genomic DNA. Thus, environmentally induced epigenomic alterations can be potentially restored. In fact, some medicines, especially for psychiatric diseases, are known to restore an altered epigenome, resulting in the correction of gene expression. Several lines of evidence suggest that environmentally induced epigenomic alterations are not erased completely during gametogenesis, but are transmitted to subsequent generations with disease phenotypes. In accordance with these understandings, I would like to propose the development of epigenomic-based preemptive medicine that consists of the early detection of the developmental origins of diseases using epigenomic signatures and the early intervention that take advantages of the use of epigenomic reversibility.
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