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Updated: Aug 22, 2026

Detection of Alternative Splicing During Epithelial-Mesenchymal Transition
Published on: October 9, 2014
Alternative splicing of Bcl-2-related genes: functional consequences and potential therapeutic applications
C Akgul1, D A Moulding, S W Edwards
1Faculty of Arts and Sciences, Department of Chemistry, Biochemistry Research Group, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey. cahitakgul@comu.edu.tr
Abstract:
Apoptosis is a morphologically distinct form of cell death. It is executed and regulated by several groups of proteins. Bcl-2 family proteins are the main regulators of the apoptotic process acting either to inhibit or promote it. More than 20 members of the family have been identified so far and most have two or more isoforms. Alternative splicing is one of the major mechanisms providing proteomic complexity and functional diversification of the Bcl-2 family proteins. Pro- and anti-apoptotic Bcl-2 family members should function in harmony for the regulation of the apoptosis machinery, and their relative levels are critical for cell fate. Any mechanism breaking down this harmony by changing the relative levels of these antagonistic proteins could contribute to many diseases, including cancer and neurodegenerative disorders. Recent studies have shown that manipulation of the alternative splicing mechanisms could provide an opportunity to restore the proper balance of these regulator proteins. This review summarises current knowledge on the alternative splicing products of Bcl-2-related genes and modulation of splicing mechanisms as a potential therapeutic approach.
Insights
Alternative splicing generates Bcl-2 family protein diversity, regulating apoptosis. Manipulating splicing offers therapeutic potential for diseases like cancer by restoring protein balance.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Apoptosis, a regulated cell death process, is controlled by Bcl-2 family proteins.
- Bcl-2 family proteins, with over 20 members and multiple isoforms, critically regulate apoptosis.
- Alternative splicing is a key mechanism driving Bcl-2 family proteomic complexity and functional diversity.
Purpose of the Study:
- To review current knowledge on alternative splicing in Bcl-2-related genes.
- To explore the therapeutic potential of modulating alternative splicing mechanisms for diseases.
Main Methods:
- Literature review of studies on Bcl-2 family alternative splicing.
- Analysis of the role of alternative splicing in protein function and disease.
Main Results:
- Alternative splicing generates diverse Bcl-2 family isoforms, impacting apoptotic regulation.
- Dysregulation of Bcl-2 protein balance due to altered splicing contributes to cancer and neurodegenerative diseases.
- Restoring proper protein levels via splicing modulation is a promising therapeutic strategy.
Conclusions:
- Alternative splicing significantly diversifies Bcl-2 family proteins, influencing cell fate.
- Targeting alternative splicing mechanisms presents a potential therapeutic avenue for diseases linked to apoptosis dysregulation.
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