Decoding genomic rearrangements for cancer driver discovery
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Updated: Sep 9, 2025

Discovery of Driver Genes in Colorectal HT29-derived Cancer Stem-Like Tumorspheres
Published on: July 22, 2020
Enyoung Seo1, Sooyeon Park1, Inho Park2
1Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
Abstract:
Somatically acquired genomic rearrangements are common genomic alterations that contribute to malignancy by altering the expression or activity of cancer-related genes in human cancer. Genomic rearrangements play a crucial role in tumor development by contributing to driver events in approximately 25% of cancer patients. Most rearrangements are nonrecurrent and lack functional impact. However, some rearrangements produce functional transcripts and act as cancer drivers that may be therapeutic targets. The growing availability of whole-genome and matched RNA-sequencing data from large patient cohorts offers tremendous opportunities to identify novel, clinically relevant drivers arising from genomic rearrangements. In this review, we summarize current knowledge of driver rearrangements as therapeutic targets and highlight recent discoveries of functional transcripts such as intergenic fusions generated by noncanonical rearrangements. We also discuss computational approaches to decode rearrangement patterns and leverage large-scale whole-genome data to discover novel drivers.
Insights
Genomic rearrangements in cancer can create functional transcripts, acting as therapeutic targets. Advanced sequencing data aids in discovering these novel cancer drivers.
Area of Science:
- Genomics
- Cancer Biology
- Bioinformatics
Background:
- Somatic genomic rearrangements are frequent in human cancers, influencing gene expression and activity.
- These rearrangements are driver events in about 25% of cancer patients, though most lack functional impact.
- Functional transcripts from rearrangements, including intergenic fusions, can serve as crucial cancer drivers and therapeutic targets.
Purpose of the Study:
- To review current knowledge on driver rearrangements as therapeutic targets.
- To highlight recent discoveries of functional transcripts from non-canonical rearrangements.
- To discuss computational methods for identifying novel drivers from large-scale genomic data.
Main Methods:
- Review of existing literature on genomic rearrangements and cancer drivers.
- Analysis of recent findings on functional transcripts and intergenic fusions.
- Discussion of computational approaches for pattern decoding and driver discovery using whole-genome and RNA-sequencing data.
Main Results:
- Genomic rearrangements are significant contributors to cancer development, with a subset acting as actionable therapeutic targets.
- Novel functional transcripts, such as intergenic fusions, are being identified through advanced sequencing.
- Computational tools are crucial for analyzing complex rearrangement patterns and discovering new drivers.
Conclusions:
- Driver rearrangements represent a promising avenue for targeted cancer therapies.
- Leveraging large-scale sequencing data and computational analysis is key to uncovering novel therapeutic targets.
- Continued research into non-canonical rearrangements may reveal new strategies for cancer treatment.
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