A tale of metabolites: the cross-talk between chromatin and energy metabolism.
Level 5 - mechanism / opinion, no new human data
Perspective article proposing theoretical mechanism-based models without primary empirical data
PubMed 23658298 · doi:10.1158/2159-8290.CD-13-0059
What was done
This perspective article outlines a theoretical model of bidirectional signaling between mitochondrial metabolism and chromatin regulation. The authors discuss how mitochondrial metabolism alters histone and DNA modifications via retrograde signaling and hypothesize that extensive chromatin acetylation and methylation can in turn regulate metabolic homeostasis by consuming and depleting cellular pools of key metabolic cofactors, specifically acetyl-CoA and S-adenosylmethionine.
What was found
The abstract presents a theoretical framework and proposal; no empirical experiments, statistical analyses, or numerical results are reported.
Why it matters
The article conceptualizes chromatin not merely as a passive recipient of metabolic signals, but as an active metabolic sink that can influence the availability of key energetic and biosynthetic metabolites.
Limits
This is a conceptual perspective piece rather than a primary research study. It provides no empirical measurements, experimental validation, or clinical data to test the proposed hypotheses.
Cited by
- supports Mitochondrial metabolites such as acetyl-CoA, citrate, lactate, and alpha-ketoglutarate act as messengers to the nucleus that modify the epigenome and alter gene expression.