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Role of Neurotransmitters in Memory01:23

Role of Neurotransmitters in Memory

Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
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Chromatin Modification in iPS Cells01:32

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Related Experiment Video

Updated: Jun 10, 2026

Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 (Kir4.1)
11:19

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Published on: September 26, 2015

CpG methylation in neurons: message, memory, or mask?

Rajiv P Sharma1, David P Gavin, Dennis R Grayson

  • 1The Psychiatric Institute, Department of Psychiatry, University of Illinois, Chicago, USA. rsharma@psych.uic.edu

Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology
|July 16, 2010
PubMed
Summary

CpG methylation in neurons is crucial for brain function, impacting gene regulation and cellular memory. Further research is needed to understand its role in neuronal activity and epigenetic regulation.

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Targeted DNA Methylation Analysis by Next-generation Sequencing
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Correlating Gene-specific DNA Methylation Changes with Expression and Transcriptional Activity of Astrocytic KCNJ10 (Kir4.1)
11:19

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Published on: September 26, 2015

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Targeted DNA Methylation Analysis by Next-generation Sequencing
08:38

Targeted DNA Methylation Analysis by Next-generation Sequencing

Published on: February 24, 2015

Area of Science:

  • Neuroscience
  • Epigenetics
  • Genomics

Background:

  • CpG methylation, once confined to cancer biology, is now recognized as vital for neuronal physiology.
  • Key proteins for DNA methylation (cytosine base modification) are highly expressed in neurons.
  • Single nucleotide alterations can significantly affect transcription factor binding and gene expression.

Purpose of the Study:

  • To explore the role of CpG methylation in neuronal physiology and gene regulation.
  • To investigate the genome-wide impact of CpG methylation in brain tissues.
  • To identify knowledge gaps in the pathway connecting neuronal activity to CpG methylation.

Main Methods:

  • Analysis of single cytosine base methylation within regulatory sequences.
  • Examination of CpG islands and chromatin assembly at the promoter level.
  • Genome-wide methylation studies on post-mortem brain samples.

Main Results:

  • CpG methylation acts as a cellular memory, regulating transcription during brain development and maturation.
  • Genome-wide methylation patterns may define active and inactive genomic territories, facilitating DNA-protein interactions.
  • The precise mechanisms linking neuronal activity to CpG methylation remain largely unknown.

Conclusions:

  • CpG methylation is a fundamental mechanism in neuronal function, influencing gene expression and cellular memory.
  • Further research is required to elucidate the regulation of DNA methyltransferases and demethylases in post-mitotic neurons.
  • Understanding the interplay between neuronal activity, DNA methylation, and histone modification is critical.