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Updated: Jul 20, 2026

Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
Published on: April 26, 2017
[Pre-mRNA alternative splicing in cancer: functional impact, molecular mechanisms and therapeutic perspectives]
Timothée Revil1, Lulzim Shkreta, Benoît Chabot
1Groupe ARN, Département de microbiologie et d'infectiologie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada J1H 5N4.
Abstract:
For most of the 25,000 human genes, the removal of introns by pre-messenger RNA splicing represents an essential step towards the production of functional messenger RNAs. Moreover, a majority of pre-messenger RNAs is alternatively spliced to yield different messenger RNAs. Cancer cells often display aberrant profiles of alternative splicing producing isoforms that can stimulate cell proliferation and migration or improve resistance to apoptosis. While mutations at splice sites or in splicing control elements have been identified, changes are also caused by alterations in the expression of proteins that affect splice site selection. Current challenges consist in documenting the functional diversity generated by alternative splicing and its contribution to different types of cancers. The development of innovative approaches aimed at reprogramming alternative splicing offers promising perspectives in cancer therapy.
Insights
Alternative splicing, a key process for gene expression, is often altered in cancer, leading to disease progression. Understanding and targeting these splicing changes offers new cancer treatment strategies.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Context:
- Pre-messenger RNA (pre-mRNA) splicing is crucial for producing functional messenger RNAs (mRNAs) from most human genes.
- Alternative splicing generates diverse mRNA isoforms, impacting cellular functions.
- Aberrant alternative splicing in cancer cells contributes to proliferation, migration, and apoptosis resistance.
Purpose:
- To highlight the role of alternative splicing in cancer development.
- To discuss the challenges in understanding splicing's functional diversity in cancer.
- To explore the therapeutic potential of targeting alternative splicing.
Summary:
- Alternative splicing dysregulation in cancer produces isoforms that promote tumor growth and survival.
- While mutations are known causes, altered protein expression affecting splice site selection is also implicated.
- Research is ongoing to document splicing's functional diversity and its link to various cancers.
Impact:
- Advances in understanding alternative splicing in cancer can identify novel therapeutic targets.
- Developing strategies to reprogram aberrant splicing holds promise for innovative cancer treatments.
- This research contributes to the broader field of cancer genomics and personalized medicine.
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