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Oligonucleotide mediated gene targeting in mammalian cells
1Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, 5600 Nathan Shock Dr., Baltimore, MD 21224, USA. seidmanm@grc.nia.nih.gov
Current Pharmaceutical Biotechnology
|November 17, 2004
Summary
Developing synthetic reagents for gene targeting offers a more efficient alternative to homologous recombination. Oligonucleotide-based strategies are being explored for precise DNA sequence modification in mammalian cells.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- Gene targeting involves specific chromosomal sequence recognition and binding by designed reagents.
- Current homologous recombination methods are inefficient and laborious for broad applications.
- There is a need for facile synthetic reagents for gene targeting in mammalian cells.
Purpose of the Study:
- To review oligonucleotide-based strategies for gene targeting.
- To explore synthetic reagents for modulating or permanently altering DNA sequences.
- To discuss applications in basic research, applied research, and gene therapy.
Main Methods:
- Review of various oligonucleotide-based strategies.
- Discussion of single-strand and double-strand oligonucleotide approaches.
- Exploration of triple helix-forming oligonucleotides and peptide nucleic acids.
Main Results:
- Oligonucleotide-based strategies offer potential for efficient gene targeting.
- Different approaches target single-stranded or double-stranded DNA.
- Synthetic reagents are under development for sequence recognition via single strands or DNA grooves.
Conclusions:
- Oligonucleotide-based methods present a promising avenue for advancing gene targeting.
- These strategies could overcome limitations of traditional homologous recombination.
- Facile gene targeting has broad implications for research and therapeutic applications.