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Aptamer-guided gene targeting in yeast and human cells
Patrick Ruff1, Kyung Duk Koh, Havva Keskin
1School of Biology, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Nucleic Acids Research
|February 7, 2014
Summary
This study introduces aptamer-guided gene targeting, a novel method using DNA aptamers to enhance gene correction efficiency. This technique significantly boosts homologous recombination (HR) for gene editing applications in yeast and human cells.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- Gene targeting via homologous recombination (HR) is crucial for genetic research and therapy.
- HR efficiency is often low in mammalian cells, limiting gene targeting applications.
- Improving HR efficiency is a key challenge in DNA editing.
Purpose of the Study:
- To develop a novel gene correction strategy using DNA aptamers to enhance gene targeting efficiency.
- To investigate the efficacy of aptamer-guided gene targeting in model organisms and human cells.
Main Methods:
- Selected DNA aptamers targeting the I-SceI endonuclease.
- Designed bifunctional oligonucleotides incorporating I-SceI aptamer sequences and homology arms for gene repair.
- Assessed gene targeting efficiency in yeast (Saccharomyces cerevisiae) and human cells.
Main Results:
- Aptamer-guided gene targeting increased gene targeting efficiency up to 32-fold in yeast.
- The method enhanced gene targeting efficiency up to 16-fold in human cells.
- Demonstrated successful gene correction of a disrupted gene using this novel approach.
Conclusions:
- Aptamer-guided gene targeting offers a promising new strategy to significantly improve gene targeting efficiency.
- This approach provides a foundation for future advancements in gene editing and therapeutic applications.
- The developed method overcomes limitations of traditional HR-based gene targeting.
