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Updated: Feb 19, 2026

Using RNA-sequencing to Detect Novel Splice Variants Related to Drug Resistance in In Vitro Cancer Models
Published on: December 9, 2016
The role of alternative splicing in cancer drug resistance
Zahava Siegfried1, Rotem Karni1
1Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel.
Abstract:
One of the major challenges in cancer treatment today is that many patients develop resistance to the therapeutic agents, resulting in treatment failure. Alternative splicing can significantly alter the coding region of drug targets. Here, we highlight several reports that provide key examples of alternative splicing events that occur in various cancers and play a role in resistance to cancer therapy. These examples present prime targets for future study and development of splicing modulation therapy. Modulation of alternative splicing has recently been approved as treatment for several diseases, although not yet for cancer. We propose that a similar approach may be successfully adapted to combat cancer therapy resistance, in cases where alternative splicing is known to be the mechanism that contributes to the resistance.
Insights
Cancer patients often develop drug resistance, leading to treatment failure. Alternative splicing in cancer can create new drug targets, suggesting splicing modulation therapy as a potential strategy to overcome resistance.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Cancer treatment failure is frequently caused by drug resistance.
- Alternative splicing, a process altering gene products, can significantly impact cancer drug targets.
- Understanding splicing's role in resistance is crucial for developing effective therapies.
Purpose of the Study:
- To highlight the role of alternative splicing in cancer therapy resistance.
- To identify alternative splicing events as potential therapeutic targets.
- To propose splicing modulation as a strategy to overcome cancer drug resistance.
Main Methods:
- Literature review of studies on alternative splicing in various cancers.
- Analysis of reported alternative splicing events contributing to drug resistance.
- Examination of existing splicing modulation therapies for other diseases.
Main Results:
- Several examples demonstrate alternative splicing events in cancers contributing to therapeutic resistance.
- These splicing alterations can modify drug targets, leading to treatment failure.
- Alternative splicing is a significant mechanism underlying cancer drug resistance.
Conclusions:
- Alternative splicing represents a key mechanism driving cancer therapy resistance.
- Splicing modulation therapy, successful in other diseases, holds promise for combating cancer resistance.
- Targeting alternative splicing offers a novel therapeutic avenue for overcoming treatment failure in cancer.
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