Computational modelling folate metabolism and DNA methylation: implications for understanding health and ageing

Mc Auley, Mark T.; Mooney, Kathleen M.; Salcedo-Sora, J. Enrique

Abstract

Dietary folates have a key role to play in health, as deficiencies in the intake of these B vitamins have been implicated in a wide variety of clinical conditions. The reason for this is folates function as single carbon donors in the synthesis of methionine and nucleotides. Moreover, folates have a vital role to play in the epigenetics of mammalian cells by supplying methyl groups for DNA methylation reactions. Intriguingly, a growing body of experimental evidence suggests that DNA methylation status could be a central modulator of the ageing process. This has important health implications because the methylation status of the human genome could be used to infer age-related disease risk. Thus, it is imperative we further our understanding of the processes which underpin DNA methylation and how these intersect with folate metabolism and ageing. The biochemical and molecular mechanisms, which underpin these processes, are complex. However, computational modelling offers an ideal framework for handling this complexity. A number of computational models have been assembled over the years, but to date, no model has represented the full scope of the interaction between the folate cycle and the reactions, which governs the DNA methylation cycle. In this review, we will discuss several of the models, which have been developed to represent these systems. In addition, we will present a rationale for developing a combined model of folate metabolism and the DNA methylation cycle.

• Journal Article Type: Article
• Online Publication Date: Dec 21, 2016
• Publication Date: Dec 21, 2016
• Deposit Date: Feb 19, 2025
• Journal: Briefings in Bioinformatics
• Print ISSN: 1467-5463
• Electronic ISSN: 1477-4054
• Publisher: Oxford University Press
• Peer Reviewed: Peer Reviewed
• Volume: 19
• Issue: 2
• Article Number: bbw116
• Pages: 303-317
• DOI: https://doi.org/10.1093/bib/bbw116