[Frontiers in Bioscience, Scholar, 7, 46-57, June 1, 2015]

Epigenetic crosstalk: a molecular language in human metabolic disorders

Celia P. Martinez-Jimenez 1 , Juan Sandoval 2

1Department of Biochemistry and Molecular Biology. University of Valencia. C/ Doctor Moliner 50, 46100-Burjassot, Valencia, Spain, 2Epigenetics and Cancer Biology, Institut d’Investigacio Biomedica de Bellvitge IDIBELL, Av. Gran Via n 199. 08907 - L’Hospitalet de Llobregat, Barcelona, Spain

TABLE OF CONTENTS

1. Abstract
2. Introduction
3. The epigenetic language
4. Metabolic sensors and transcriptional coregulators
5. Epigenetic state and human metabolic diseases
6. Non-alcoholic fatty liver disease.
7. Perspective of somatic mosaicism
8. Acknowledgement
9. References

1. ABSTRACT

Technological breakthroughs are emphasizing the impact of epigenetic mechanisms in human health highlighting the importance of a fine-tune orchestration of DNA methylation, micro RNAs, histone modifications, and chromatin structure. Transcriptional regulators sense the concentration of intermediary metabolites associated to a wide variety of biological processes including the long-term imprinting and heritable DNA methylation. Recent epigenetic mechanisms associated with cholesterol and lipid homeostasis have a critical impact in the susceptibility, development and progression of complex diseases such as type 2 diabetes mellitus, non-alcoholic fatty liver, obesity and metabolic syndrome. The heritability of epigenetic states emerge as an additional level of complexity where the extension of somatic as well as inherited epigenetic modifications may require a thoughtful reconsideration in many human diseases related with metabolic disorders.

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Key Words: Epigenetics, Transgenerational Inheritance, Metabolism, Transcriptional Regulation, Lipid Homeostasis, Fatty Liver, obesity, DNA methylation, histones, microRNA, Review

Send correspondence to: Juan Sandoval, Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), 3rd Floor, Hospital, Duran i Reynals, Av. Gran Via de L’Hospitalet 199, 203, 08908 L’Hospitalet, de Llobregat, Barcelona, Catalonia, Spain, Tel:0034 93 260 72 46, Fax: 0034 93 260 72 19, E-mail:jsandoval@idibell.cat