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Targeting Alternative Splicing as a Potential Therapy for Episodic Ataxia Type 2
Fanny Jaudon1, Simona Baldassari2, Ilaria Musante2,3
1Department of Life Sciences, University of Trieste, 34127 Trieste, Italy.
Biomedicines
|September 9, 2020
Summary
Episodic ataxia type 2 (EA2) is a neurological disorder caused by mutations in the CACNA1A gene. Splicing-based strategies offer a promising new therapeutic approach for EA2, potentially improving upon existing treatments.
Area of Science:
- Neurology
- Genetics
- Molecular Biology
Background:
- Episodic ataxia type 2 (EA2) is an inherited neurological disorder causing ataxia and vertigo.
- EA2 results from loss-of-function mutations in the CACNA1A gene, which encodes a calcium channel subunit.
- Current treatments for EA2 are not universally effective.
Purpose of the Study:
- To review splicing-based strategies for treating genetic disorders.
- To discuss the potential application of these strategies to Episodic Ataxia Type 2.
Main Methods:
- Review of existing literature on splicing-based therapies.
- Analysis of CACNA1A gene splicing and its relation to EA2.
- Examination of therapeutic strategies like antisense oligonucleotides, trans-splicing, and CRISPR.
Main Results:
- The CACNA1A gene is subject to extensive splicing.
- Some EA2 mutations are predicted to affect specific CACNA1A isoforms.
- Splicing modulation is a viable therapeutic strategy for other genetic disorders.
Conclusions:
- Modulating CACNA1A splicing presents a novel therapeutic avenue for EA2.
- Splicing-based approaches could overcome limitations of current EA2 treatments.
- Further research into splicing modulation for EA2 is warranted.
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