期刊
NUCLEIC ACIDS RESEARCH
卷 49, 期 W1, 页码 W199-W206出版社
OXFORD UNIV PRESS
DOI: 10.1093/nar/gkab426
关键词
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资金
- iPC Individualized Paediatric Cure European Union [826121]
- H2020-MSCA-ITN [721815]
- iPC Individualized Paediatric Cure European Union's Horizon 2020 Research and Innovation Programme
Methylage is an epigenetic marker that estimates biological age by studying the relationship between methylation state of specific CG dinucleotides and different ages. While alterations in this correlation can indicate pathological states, the potential of Methylage is limited by factors such as CpGs selection, mathematical modeling, tissue specificity, and age range.
Methylage is an epigenetic marker of biological age that exploits the correlation between the methylation state of specific CG dinucleotides (CpGs) and chronological age (in years), gestational age (in weeks), cellular age (in cell cycles or as telomere length, in kilobases). Using DNA methylation data, methylage is measurable via the so called epigenetic clocks. Importantly, alterations of the correlation between methylage and age (age acceleration or deceleration) have been stably associated with pathological states and occur long before clinical signs of diseases become overt, making epigenetic clocks a potentially disruptive tool in preventive, diagnostic and also in forensic applications. Nevertheless, methylage dependency from CpGs selection, mathematical modelling, tissue specificity and age range, still makes the potential of this biomarker limited. In order to enhance model comparisons, interchange, availability, robustness and standardization, we organized a selected set of clocks within a hub webservice, EstimAge (Estimate of methylation Age, http://estimage.iac.rm.cnr.it), which intuitively and informatively enables quick identification, computation and comparison of available clocks, with the support of standard statistics.
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