Mini review: histone acetylation, lactylation and glycation in epigenetic aging
This mini review links three histone modifications to distinct metabolic fluxes and proposes that their convergence underlies a metabolic-epigenetic collapse in aging; it is an abstract only, and the proposed 'aging' metabolic memory is a proposal, not an established mechanism. [1]
Automatic summary · not editorially reviewed
The key findings
The review links histone acetylation, lactylation and glycation to mitochondrial oxidative phosphorylation, glycolytic lactate production and reactive carbonyl stress, respectively. [1]
It states that NAD+ decline in aging disables the sirtuin deacetylase family, dysregulating histone acetylation and impairing autophagy, mitochondrial biogenesis and DNA repair. [1]
The review proposes a unified metabolic-epigenetic collapse as the cellular basis of an 'aging' metabolic memory and lists unresolved lactylation and glycation questions. [1]
The source at a glance
- Study type / format
- Mini review (abstract only)
- Population / context
- Not specified in the abstract; the review discusses aging cells and tissues, including diabetic microglia and tumor cells.
- Summary based on
- Study abstract
- Original publication
- June 3, 2026
Three histone marks and their metabolic drivers
The review describes three mechanistically distinct histone modifications, each driven by a different metabolic flux: acetylation by mitochondrial oxidative phosphorylation, lactylation by glycolytic lactate production, and glycation by reactive carbonyl stress. It states that NAD+ decline in aging disables the sirtuin deacetylase family, dysregulating the histone acetylation landscape and impairing autophagy, mitochondrial biogenesis and DNA repair.
Supporting source [1]
Context-dependent lactylation and irreversible glycation
Histone lactylation, written by p300 at H3K18 and related lysine residues, is described as context-dependent: physiological pulses during exercise and sleep are adaptive, while chronic accumulation in diabetic microglia drives neuroinflammation via TLR4/NF-κB, and excess in tumor cells enables senescence bypass. Histone glycation by methylglyoxal is said to irreversibly displace regulatory marks and inactivate sirtuin proteins; pharmacological induction of glyoxalase I and glycation-lowering interventions are reported to reduce this burden and extend healthspan.
Supporting source [1]
Proposed convergence and stated research gaps
The review proposes that the three axes converge on a unified metabolic-epigenetic collapse constituting the cellular basis of an 'aging' metabolic memory. It names unresolved points: lactylation erasers remain uncharacterized, the pro- versus anti-senescence duality of H3K18la is unresolved, and genome-wide histone glycation mapping in human tissues is absent. It concludes that combinatorial interventions targeting NAD+ restoration, modulation of lactylation and reduction of carbonyl stress offer the most evidence-based approach to slowing metabolic-epigenetic aging.
Supporting source [1]
How to interpret this
This explainer is based on the abstract only; the full text was not reviewed. The 'aging' metabolic memory is explicitly a proposal. The abstract reports no human study design, sample or follow-up, and the cited mechanisms, including healthspan extension, are not established as human lifespan benefits.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Bolgova O, Shypilova I, Mavrych V. · europepmc.org · June 3, 2026