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Antisense effects in the cell nucleus: modification of splicing
1University of North Carolina, Lineberger Comprehensive Cancer Center, Chapel Hill 27599-7295, USA. kole@med.unc.edu
Current Opinion in Molecular Therapeutics
|August 11, 2001
Summary
Human gene diversity arises from alternative RNA splicing. Antisense oligonucleotides can alter gene expression by targeting RNA, primarily functioning within the cell nucleus.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- The human genome has approximately 30,000 genes.
- RNA processing, particularly alternative splicing, drives gene product diversity in mammals.
Purpose of the Study:
- To review studies on manipulating alternative splicing using antisense oligonucleotides.
- To determine the primary site of action for antisense oligonucleotides in altering gene expression.
Main Methods:
- Review of recent studies utilizing antisense oligonucleotides to modulate alternative RNA splicing.
- Analysis of experimental data on the localization and function of antisense oligonucleotides.
Main Results:
- Antisense oligonucleotides represent a viable method for manipulating alternative splicing and gene expression.
- These oligonucleotides function predominantly in the nucleus, regardless of whether they target mRNA or pre-mRNA.
Conclusions:
- Alternative RNA splicing is crucial for generating diverse gene products from a limited number of human genes.
- Antisense oligonucleotides are effective tools for gene expression modulation, acting primarily within the nuclear compartment.