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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
Published on: April 26, 2017
Alternative splicing and cancer: a systematic review
Yuanjiao Zhang1,2, Jinjun Qian2, Chunyan Gu3,4
1The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Abstract:
The abnormal regulation of alternative splicing is usually accompanied by the occurrence and development of tumors, which would produce multiple different isoforms and diversify protein expression. The aim of the present study was to conduct a systematic review in order to describe the regulatory mechanisms of alternative splicing, as well as its functions in tumor cells, from proliferation and apoptosis to invasion and metastasis, and from angiogenesis to metabolism. The abnormal splicing events contributed to tumor progression as oncogenic drivers and/or bystander factors. The alterations in splicing factors detected in tumors and other mis-splicing events (i.e., long non-coding and circular RNAs) in tumorigenesis were also included. The findings of recent therapeutic approaches targeting splicing catalysis and splicing regulatory proteins to modulate pathogenically spliced events (including tumor-specific neo-antigens for cancer immunotherapy) were introduced. The emerging RNA-based strategies for the treatment of cancer with abnormally alternative splicing isoforms were also discussed. However, further studies are still required to address the association between alternative splicing and cancer in more detail.
Insights
Alternative splicing dysregulation drives cancer by altering protein diversity. This review covers its roles in tumor progression and emerging RNA-based cancer therapies.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Alternative splicing dysregulation is a hallmark of cancer, leading to diverse protein isoforms.
- Aberrant splicing contributes to tumor progression, influencing key cellular processes.
Purpose of the Study:
- To systematically review alternative splicing regulatory mechanisms in cancer.
- To explore the functions of alternative splicing in tumor development and progression.
- To discuss therapeutic strategies targeting aberrant splicing in cancer.
Main Methods:
- Systematic review of literature on alternative splicing in cancer.
- Analysis of regulatory mechanisms, functional impacts, and therapeutic approaches.
- Inclusion of studies on splicing factors, non-coding RNAs, and RNA-based therapies.
Main Results:
- Abnormal splicing acts as oncogenic drivers or bystander factors in tumor progression.
- Alterations in splicing factors and non-coding RNAs (lncRNAs, circRNAs) are implicated in tumorigenesis.
- Targeting splicing offers potential therapeutic avenues, including cancer immunotherapy.
Conclusions:
- Alternative splicing plays a critical role in cancer initiation, progression, and metastasis.
- Therapeutic strategies targeting splicing mechanisms show promise for cancer treatment.
- Further research is needed to fully elucidate the complex relationship between alternative splicing and cancer.
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