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Related Concept Videos

CRISPR01:59

CRISPR

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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Caenorhabditis elegans as a Model System for Discovering Bioactive Compounds Against Polyglutamine-Mediated Neurotoxicity
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Advances in Modeling Polyglutamine Diseases Using Genome Editing Tools.

Marianna Karwacka1, Marta Olejniczak1

  • 1Department of Genome Engineering, Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Poland.

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|February 15, 2022
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Summary

Gene editing technologies like CRISPR-Cas9 are revolutionizing the study of polyglutamine (polyQ) diseases. These tools enable the creation of precise models for understanding and potentially treating these progressive neurological disorders.

Keywords:
CAG repeatsCRISPR-Cas9Huntington’s diseasedisease modelsgenome editingiPSCspolyQpolyglutamine disease

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Area of Science:

  • Neuroscience
  • Genetics
  • Molecular Biology

Background:

  • Polyglutamine (polyQ) diseases are progressive neurological disorders caused by CAG repeat expansions.
  • Despite research, the pathology and development of polyQ diseases remain incompletely understood.

Purpose of the Study:

  • To review the application of gene-editing technologies in creating polyglutamine disease models.
  • To highlight the role of CRISPR-Cas9 in generating cellular and animal models for polyQ disease research.

Main Methods:

  • Review of studies utilizing CRISPR-Cas9 and other gene-editing tools.
  • Characterization of various models including HEK 293 cells, fibroblasts, hESCs, iPSCs, and animal models.
  • Analysis of methods for correcting disease-causing mutations and creating isogenic cell lines.

Main Results:

  • Gene-editing technologies offer significant value in generating accurate polyQ disease models.
  • These tools facilitate the correction of disease-causing mutations and the creation of cell lines with varying CAG repeat lengths.
  • A range of cellular and animal models have been successfully generated using genome-editing technology.

Conclusions:

  • CRISPR-Cas9 and similar technologies are invaluable for advancing polyQ disease research.
  • The development of precise genetic models is crucial for understanding disease mechanisms and therapeutic development.
  • Genome editing accelerates the creation of diverse models, supporting comprehensive investigation of polyglutamine disorders.