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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
Published on: April 26, 2017
Aberrant RNA Splicing in Cancer
Luisa Escobar-Hoyos1,2,3, Katherine Knorr4, Omar Abdel-Wahab1,4,5
1Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
Abstract:
RNA splicing, the enzymatic process of removing segments of premature RNA to produce mature RNA, is a key mediator of proteome diversity and regulator of gene expression. Increased systematic sequencing of the genome and transcriptome of cancers has identified a variety of means by which RNA splicing is altered in cancer relative to normal cells. These findings, in combination with the discovery of recurrent change-of-function mutations in splicing factors in a variety of cancers, suggest that alterations in splicing are drivers of tumorigenesis. Greater characterization of altered splicing in cancer parallels increasing efforts to pharmacologically perturb splicing and early-phase clinical development of small molecules that disrupt splicing in patients with cancer. Here we review recent studies of global changes in splicing in cancer, splicing regulation of mitogenic pathways critical in cancer transformation, and efforts to therapeutically target splicing in cancer.
Insights
Altered RNA splicing is a key driver in cancer development. Targeting these splicing changes offers a promising new therapeutic strategy for cancer treatment.
Area of Science:
- Molecular Biology
- Cancer Genomics
- RNA Biology
Background:
- RNA splicing is crucial for protein diversity and gene expression regulation.
- Cancer cells exhibit significant alterations in RNA splicing compared to normal cells.
- Mutations in splicing factors are frequently observed in various cancers, implicating them in tumorigenesis.
Purpose of the Study:
- To review recent findings on global RNA splicing changes in cancer.
- To explore the role of splicing in regulating cancer-driving mitogenic pathways.
- To summarize current therapeutic strategies targeting RNA splicing in cancer.
Main Methods:
- Review of recent scientific literature on RNA splicing in cancer.
- Analysis of genomic and transcriptomic sequencing data from cancer studies.
- Examination of studies on small molecules designed to disrupt splicing.
Main Results:
- Global RNA splicing patterns are significantly altered in cancer.
- Splicing regulates critical mitogenic pathways involved in cancer transformation.
- Therapeutic targeting of splicing is an emerging strategy in cancer treatment.
Conclusions:
- Aberrant RNA splicing is a significant factor in cancer development.
- Pharmacological modulation of RNA splicing holds therapeutic potential for cancer patients.
- Further research into splicing alterations and targeted therapies is warranted.
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