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November 1, 2025Cell GenomicsOpen Access

The dimmer switch in epigenetics: How DNA methylation encodes gene activity over time

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Authors

APAleksandra Pękowska

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Overview

This article discusses how DNA methylation encodes gene expression memory in individual cells, suggesting a unique epigenetic mechanism.

Key Points

  • To explore if individual cells can retain memory of previous gene expression levels via DNA methylation.
  • Examined the role of DNA methylation in gene expression levels
  • Investigated the persistence of epigenetic information through cell divisions
  • Utilized experimental models to analyze epigenetic memory mechanisms.
  • Identified DNA methylation as a key factor in retaining gene expression memory.
  • Demonstrated that gene expression can be locked in over time due to DNA methylation effects.
  • Showed that individual cells manage an analog memory system for gene activity.

Cite This Study

Aleksandra Pękowska (2025) studied this question.

synapsesocial.com/papers/69254371c0ce034ddc3587e1https://doi.org/10.1016/j.xgen.2025.101070
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Also Consider

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  1. 1Analog epigenetic memory revealed by targeted chromatin editing2024 · 2 citations
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  4. 4The epigenetic circle: feedback loops in the maintenance of cellular memory2025
  5. 5Activity-dependent DNA methylation and demethylation: epigenetic regulators of learning and memory2026