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Growth Assays to Assess Polyglutamine Toxicity in Yeast

Growth Assays to Assess Polyglutamine Toxicity in Yeast

Published on: March 5, 2012

Epigenetic profiles in polyglutamine disorders.

Hongmei Liu¹, Tie-Shan Tang¹, Caixia Guo²

¹State Key Laboratory of Membrane Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100101, China.

|November 28, 2017

Summary

This summary is machine-generated.

Polyglutamine (polyQ) disorders, like Huntington's disease, stem from expanded gene repeats. Epigenetic changes, including DNA methylation and noncoding RNAs, are key to these neurodegenerative diseases and offer potential therapeutic targets.

Keywords:

epigenetic dysregulation pathogenesis polyglutamine disorders

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Last Updated: Feb 18, 2026

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Area of Science:

Neuroscience
Genetics
Molecular Biology

Background:

Polyglutamine (polyQ) disorders are progressive, incurable neurodegenerative conditions.
These disorders result from expanded CAG trinucleotide repeats in causative genes.
Huntington's disease and spinocerebellar ataxia type 3 are prevalent examples.

Purpose of the Study:

To review epigenetic alterations in polyQ disorders.
To explore the role of epigenetic dysregulation in polyQ disease pathogenesis.
To discuss microRNAs (miRNAs) as potential therapeutic targets.

Main Methods:

Literature review of epigenetic mechanisms in polyQ disorders.
Analysis of DNA methylation, histone modifications, chromatin remodeling, and noncoding RNA regulation.
Examination of miRNA involvement in disease pathology.

Main Results:

Epigenetic dysregulation is implicated in the pathogenesis of polyQ disorders.
Specific epigenetic changes vary across different polyQ disorders.
MicroRNAs show promise as therapeutic targets for polyQ diseases.

Conclusions:

Epigenetic mechanisms are central to polyQ disorder development.
Targeting epigenetic modifications, particularly miRNAs, may offer new therapeutic strategies.
Further research into miRNA-based therapies is warranted for clinical application.