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Related Experiment Video

Updated: May 14, 2026

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

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

Published on: September 26, 2015

MeCP2 modulates gene expression pathways in astrocytes.

Dag H Yasui¹, Huichun Xu, Keith W Dunaway

¹Department of Medical Microbiology and Immunology, UC Davis Genome Center, University of California Davis, 1 Shields Avenue, Davis, CA, 95616, USA. dhyasui@ucdavis.edu.

Molecular Autism

|January 29, 2013

Summary

This summary is machine-generated.

Researchers identified 19 key gene targets affected by methyl-CpG-binding protein 2 (MeCP2) loss in astrocytes, crucial for understanding Rett syndrome progression. This study highlights astrocyte MeCP2 targets

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An Electrochemiluminescence-Based Assay for MeCP2 Protein Variants

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Last Updated: May 14, 2026

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

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Published on: September 26, 2015

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An Electrochemiluminescence-Based Assay for MeCP2 Protein Variants

An Electrochemiluminescence-Based Assay for MeCP2 Protein Variants

Published on: May 22, 2020

Area of Science:

Neuroscience
Genetics
Epigenetics

Background:

Mutations in methyl-CpG-binding protein 2 (MeCP2) cause Rett syndrome, a neurodevelopmental disorder with symptoms including breathing irregularities, motor deficits, and speech loss.
MeCP2 epigenetically regulates gene expression by binding to methylated CpG sites, with high expression in neurons but also detectable levels in astrocytes.
Astrocytes are increasingly implicated in the progression of Rett syndrome, making the identification of MeCP2's role in these cells critical.

Purpose of the Study:

To identify specific gene targets regulated by MeCP2 within astrocytes.
To understand how the loss of MeCP2 binding in astrocytes contributes to Rett syndrome.
To provide a foundation for future therapeutic strategies targeting astrocyte dysfunction in Rett syndrome.

Main Methods:

Integrated expression microarray and chromatin immunoprecipitation followed by sequencing (ChIP-seq) in wild-type versus MeCP2-deficient astrocytes.
Analysis focused on MeCP2 binding within 2 kb upstream of transcription start sites, gene bodies, and 2 kb downstream of transcription end sites.
Comparison of MeCP2 target genes with genes exhibiting the highest MeCP2 binding levels (top 10%).

Main Results:

Expression microarray analysis identified 118 significantly altered gene transcripts in MeCP2-deficient astrocytes.
Combined ChIP-seq and microarray data revealed 19 high-confidence MeCP2-responsive gene transcripts in astrocytes.
RT-PCR validation confirmed that Apoc2, Cdon, Csrp, and Nrep expression levels were consistently altered by MeCP2 deficiency.

Conclusions:

This study presents the first integrated MeCP2 ChIP-seq and gene expression analysis in astrocytes.
A set of potential MeCP2 target genes in astrocytes was identified, potentially impacting astrocyte signaling, cell division, and neuronal support.
Dysregulation of these astrocyte-specific MeCP2 targets may contribute to the Rett syndrome phenotype.