Related Experiment Video
Updated: May 21, 2026

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
From cancer genomes to oncogenic drivers, tumour dependencies and therapeutic targets
Cheryl Eifert1, R Scott Powers
1Cancer Genome Center, Cold Spring Harbor Laboratory, Woodbury, New York 11797, USA.
Abstract:
The analysis of human cancer by genome sequencing and various types of arrays has proved that many tumours harbour hundreds of genes that are mutated or substantially altered by copy number changes. But how many of these changes are meaningful? And how can we exploit these massive data sets to yield new targets for cancer treatment? In this Opinion article, we describe emerging approaches that aim to determine which altered genes are actually contributing to cancer, as well as their potential as therapeutic targets.
Insights
Identifying meaningful genetic alterations in human tumors is crucial for developing new cancer treatments. This article explores methods to pinpoint cancer-driving genes and their therapeutic potential.
Area of Science:
- Genomics
- Cancer Biology
- Translational Oncology
Background:
- Genome sequencing and array-based analyses reveal numerous genetic alterations in human tumors.
- Distinguishing driver mutations from passenger mutations is a significant challenge in cancer research.
Approach:
- Discusses emerging computational and experimental strategies to identify functionally significant genetic changes.
- Focuses on methods to determine which gene alterations actively contribute to tumor development and progression.
Key Points:
- Many tumors exhibit hundreds of mutated or copy-number-altered genes.
- The challenge lies in identifying which of these alterations are critical for cancer.
- Emerging approaches aim to bridge this gap by linking genetic changes to cancer mechanisms.
Conclusions:
- Understanding the functional impact of genetic alterations is key to discovering novel therapeutic targets.
- Developing methods to identify cancer-driving genes will accelerate the development of targeted cancer therapies.
Related Concept Videos
Cancer
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancers Originate from Somatic Mutations in a Single Cell

