Epigenetic mechanisms: Critical contributors to long-term memory formation

Farah D. Lubin, Swati Gupta, R. Ryley Parrish, Nicola M. Grissom, Robin L. Davis

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Recent advances in chromatin biology have identified a role for epigenetic mechanisms in the regulation of neuronal gene expression changes, a necessary process for proper synaptic plasticity and memory formation. Experimental evidence for dynamic chromatin remodeling influencing gene transcription in postmitotic neurons grew from initial reports describing posttranslational modifications of histones, including phosphorylation and acetylation occurring in various brain regions during memory consolidation. An accumulation of recent studies, however, has also highlighted the importance of other epigenetic modifications, such as DNA methylation and histone methylation, as playing a role in memory formation. This present review examines learning-induced gene transcription by chromatin remodeling underlying long-lasting changes in neurons, with direct implications for the study of epigenetic mechanisms in long-term memory formation and behavior. Furthermore, the study of epigenetic gene regulation, in conjunction with transcription factor activation, can provide complementary lines of evidence to further understanding transcriptional mechanisms subserving memory storage.

Original languageEnglish (US)
Pages (from-to)616-632
Number of pages17
JournalNeuroscientist
Volume17
Issue number6
DOIs
StatePublished - Dec 2011

Keywords

  • DNA methylation
  • HDAC
  • NF-κB
  • amygdala
  • epigenetics
  • hippocampus
  • histone acetylation
  • histone methylation
  • memory formation

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