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Updated: Apr 19, 2026

Selection-dependent and Independent Generation of CRISPR/Cas9-mediated Gene Knockouts in Mammalian Cells
Published on: June 16, 2017
CRISPR-based self-cleaving mechanism for controllable gene delivery in human cells
Richard Moore1, Alec Spinhirne2, Michael J Lai3
1Bioengineering Department, University of Texas at Dallas, Richardson, TX 75080, USA Electrical Engineering Department, University of Texas at Dallas, Richardson, TX 75080, USA.
This study introduces a novel CRISPR-Cas9 gene delivery system for precise control over gene product levels and vector clearance in human cells. This method enhances gene therapy and synthetic biology applications by enabling tunable gene expression and trace-free delivery.
Area of Science:
- Synthetic biology
- Gene therapy
- Molecular biology
Background:
- Vector-based gene delivery is crucial for gene therapy and synthetic biology.
- Controlling gene product levels and delivery vehicle persistence in host cells presents significant challenges.
Purpose of the Study:
- To develop a methodology for controllable gene delivery in human cells.
- To enable precise regulation of gene product quantity and residence time.
- To facilitate selective disruption of the delivery vehicle post-delivery.
Main Methods:
- Utilized the CRISPR-Cas9 system guided by custom RNA sequences.
- Engineered delivery vectors with specific target sites for Cas9 cleavage.
- Performed experiments in human embryonic kidney cells to validate the system's parameters.
Main Results:
- Demonstrated successful control over gene product copies and residence time.
- Showcased selective inactivation of co-expressed genes via Cas9-mediated vector cleavage.
- Validated that system parameters can be adjusted to fine-tune gene delivery properties.
Conclusions:
- The developed CRISPR-Cas9 system offers a novel approach for controllable gene delivery.
- This methodology holds promise for advanced synthetic biology, gene therapy, and trace-free delivery applications.
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