Related Experiment Video
Updated: May 30, 2025

Using the E1A Minigene Tool to Study mRNA Splicing Changes
Published on: April 22, 2021
Targeting RNA splicing modulation: new perspectives for anticancer strategy?
Xuemei Lv1,2, Xiaoyu Sun1, Yang Gao1
1Department of Pharmacology, School of Pharmacy, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, 110122, P. R. China.
Abstract:
The excision of introns from pre-mRNA is a crucial process in the expression of the majority of genes. Alternative splicing allows a single gene to generate diverse mRNA and protein products. Aberrant RNA splicing is recognized as a molecular characteristic present in almost all types of tumors. Therefore, identifying cancer-specific subtypes from aberrant processing offers new opportunities for therapeutic development. Numerous splicing modulators, each utilizing different mechanisms, have been developed as promising anticancer therapies, some of which are in clinical trials. In this review, we summarize the splice-altered signatures of cancer cell transcriptomes and the contributions of splicing aberrations to tumorigenesis and progression. Especially, we discuss current and emerging RNA splicing-targeted strategies for cancer therapy, including pharmacological approaches and splice-switching antisense oligonucleotides (ASOs). Finally, we address the challenges and opportunities in translating these findings into clinical practice.
Insights
Aberrant RNA splicing drives cancer development. This review explores cancer-specific splicing signatures and RNA splicing-targeted therapies, including splice-switching antisense oligonucleotides (ASOs), for improved cancer treatment.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- Alternative RNA splicing generates diverse proteins from a single gene.
- Aberrant RNA splicing is a hallmark of most human cancers.
- Targeting splicing offers novel therapeutic strategies for cancer treatment.
Purpose of the Study:
- To review splice-altered signatures in cancer transcriptomes.
- To discuss the role of splicing aberrations in tumorigenesis and progression.
- To highlight RNA splicing-targeted cancer therapies and their clinical translation.
Main Methods:
- Review of scientific literature on RNA splicing and cancer.
- Analysis of cancer cell transcriptome data for splicing alterations.
- Discussion of pharmacological agents and splice-switching antisense oligonucleotides (ASOs).
Main Results:
- Identified distinct splice-altered signatures across various cancer types.
- Detailed the contribution of splicing aberrations to cancer initiation and metastasis.
- Summarized the mechanisms and clinical progress of splicing-targeted therapies.
Conclusions:
- Aberrant RNA splicing is a critical driver of cancer.
- RNA splicing-targeted strategies, including ASOs, show promise for cancer therapy.
- Further research is needed to overcome challenges in clinical translation.
Related Concept Videos
RNA Splicing
Alternative RNA Splicing
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
Experimental RNAi
Chromatin Structure Regulates pre-mRNA Processing
The chromatin structure, especially...
Pre-mRNA Processing: RNA Splicing
RNA Interference
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...

