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Related Experiment Videos

A CRISPR toolbox to study virus-host interactions.

Andreas S Puschnik1, Karim Majzoub1, Yaw Shin Ooi1

  • 1Department of Microbiology and Immunology, Stanford University, Stanford, California 94305, USA.

Nature Reviews. Microbiology
|April 20, 2017
PubMed
Summary
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Genome-scale CRISPR-Cas screens are revolutionizing virology by identifying essential host factors for virus replication. This powerful technology aids in discovering novel antiviral targets by probing virus-host interactions.

Area of Science:

  • Virology and Molecular Biology
  • Genetics and Genomics
  • CRISPR-Cas Technology Applications

Background:

  • Viruses require host cell machinery for replication, utilizing cellular receptors for entry and hijacking cellular functions for genome replication, virion assembly, and spread.
  • Understanding virus-host interactions is crucial for developing antiviral strategies.
  • Genome-scale genetic screens offer a powerful approach to systematically identify host factors involved in viral processes.

Purpose of the Study:

  • To review the technical aspects of genome-scale CRISPR-Cas knockout screens for studying virus-host interactions.
  • To compare CRISPR-Cas screening with alternative genetic screening technologies.
  • To highlight the utility of CRISPR-Cas screens in identifying host factors essential for the replication of clinically relevant viruses.

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Main Methods:

  • Utilizing genome-scale CRISPR-Cas screens to systematically knock out host genes.
  • Analyzing the impact of gene knockouts on viral replication efficiency.
  • Comparing CRISPR-Cas screening methodology with other genetic screening approaches.

Main Results:

  • CRISPR-Cas screens have successfully identified host factors critical for the replication of various viruses, including Zika virus, West Nile virus, dengue virus, and hepatitis C virus.
  • CRISPR-Cas technology offers relative ease of use and reproducibility.
  • These screens provide a comprehensive view of host dependencies for viral replication.

Conclusions:

  • Genome-scale CRISPR-Cas screening is a powerful and reproducible tool for dissecting virus-host interactions.
  • This technology facilitates the identification of novel host factors essential for viral replication.
  • CRISPR-Cas screens represent a promising avenue for discovering new antiviral therapeutic targets.