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Using CRISPR/Cas9 Gene Editing to Investigate the Oncogenic Activity of Mutant Calreticulin in Cytokine Dependent Hematopoietic Cells
Published on: January 5, 2018
Using CRISPR/Cas9 Technology for Manipulating Cell Death Regulators
Andrew J Kueh1,2, Marco J Herold3,4
1Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia.
Abstract:
Clustered, regularly interspaced, short palindromic repeats (CRISPR)/Cas9 technology has been demonstrated to be a useful tool for generating targeted mutations in cell lines and mice. However, the use of CRISPR/Cas9 in a constitutively expressed manner can often result in low targeting efficiencies and lethality due to mutations in essential genes. Here, we describe the use of an inducible lentiviral vector platform, enabling rapid transduction and enrichment of CRISPR/Cas9 positive cells and high levels of targeted mutations upon induction.
Insights
This study introduces an inducible lentiviral vector for Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 gene editing. This method improves targeting efficiency and reduces lethality in essential genes.
Area of Science:
- Molecular Biology
- Gene Editing Technologies
- Biotechnology
Background:
- CRISPR/Cas9 is a powerful gene editing tool for creating targeted mutations.
- Constitutive CRISPR/Cas9 expression can lead to low efficiency and lethality from essential gene mutations.
Purpose of the Study:
- To develop an inducible CRISPR/Cas9 system for enhanced gene editing.
- To overcome limitations of constitutive CRISPR/Cas9 expression.
Main Methods:
- Utilized a lentiviral vector platform for inducible CRISPR/Cas9 delivery.
- Employed cell transduction and enrichment strategies.
- Induced CRISPR/Cas9 expression for targeted mutations.
Main Results:
- Achieved rapid transduction and enrichment of CRISPR/Cas9 positive cells.
- Demonstrated high levels of targeted mutations upon induction.
- Showcased improved efficiency compared to constitutive expression.
Conclusions:
- An inducible lentiviral vector platform enhances CRISPR/Cas9 gene editing efficiency.
- This inducible system mitigates issues of low targeting efficiency and lethality.
- Offers a more controlled and effective approach for CRISPR/Cas9 applications.
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