Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Cancer & Tumors684 citations
Choi J, Min K, Jeon S, Kim N, Pack JK, Song K
No Effects Found
Authors not listed · 2020
Cancer involves 16 distinct patterns of genetic rearrangement, highlighting the complex pathways through which environmental factors may contribute to disease.
Plain English Summary
Summary written for general audiences
Researchers analyzed genetic data from over 2,600 cancers across 38 tumor types to identify patterns in how cancer cells rearrange their DNA. They discovered 16 distinct signatures of structural genetic changes that occur during cancer development. This comprehensive mapping reveals the complex ways cancer cells reorganize their genetic material, providing new insights into cancer biology.
Cite This Study
Unknown (2020). Choi J, Min K, Jeon S, Kim N, Pack JK, Song K.
Show BibTeX
@article{choi_j_min_k_jeon_s_kim_n_pack_jk_song_k_ce2722,
author = {Unknown},
title = {Choi J, Min K, Jeon S, Kim N, Pack JK, Song K},
year = {2020},
doi = {10.1038/s41586-019-1913-9},
}Quick Questions About This Study
The study identified 16 distinct patterns of DNA rearrangement in cancer cells, including deletions, tandem duplications, and complex chromosomal structures. These signatures represent different mechanisms by which cancer cells reorganize their genetic material during tumor development.
Researchers analyzed whole-genome sequencing data from 2,658 cancers across 38 different tumor types. This massive dataset came from the Pan-Cancer Analysis of Whole Genomes Consortium, representing one of the largest cancer genomics studies ever conducted.
These are complex structures where 2-7 DNA templates from different genome regions get copied and strung together at one location. In liver cancer, these cycles frequently activate the telomerase gene TERT, which helps cancer cells avoid normal cell death.
Yes, deletions are enriched in late-replicating regions of the genome and correlate with inversions, while tandem duplications occur more frequently in early-replicating regions. This pattern suggests different underlying mechanisms drive these structural changes.
Structural variations delete, amplify, or reorder genomic segments ranging from small DNA pieces to whole chromosomes. These rearrangements create complex genome configurations that provide raw material for natural selection to act upon during cancer progression.