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Cited by 667

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Circular ecDNA promotes accessible chromatin and high oncogene expression

Open access
Wu, Sihan, Turner, Kristen M., Nguyen, Nam, Raviram, Ramya, Erb, Marcella, Santini, Jennifer, Luebeck, Jens, Rajkumar, Utkrisht, Diao, Yarui, Li, Bin, Zhang, Wenjing, Jameson, Nathan, Corces, M. Ryan, Granja, Jeffrey M., Chen, Xingqi, Coruh, Ceyda, Abnousi, Armen, Houston, Jack, Ye, Zhen, Hu, Rong, Yu, Miao, Kim, Hoon, Law, Julie A., Verhaak, Roel G. W., Hu, Ming, Furnari, Frank B., Chang, Howard Y., Ren, Bing, Bafna, Vineet, Mischel, Paul S.·2019·Nature

Abstract

Oncogenes are commonly amplified on particles of extrachromosomal DNA (ecDNA) in cancer1,2, but our understanding of the structure of ecDNA and its effect on gene regulation is limited. Here, by integrating ultrastructural imaging, long-range optical mapping and computational analysis of whole-genome sequencing, we demonstrate the structure of circular ecDNA. Pan-cancer analyses reveal that oncogenes encoded on ecDNA are among the most highly expressed genes in the transcriptome of the tumours, linking increased copy number with high transcription levels. Quantitative assessment of the chromatin state reveals that although ecDNA is packaged into chromatin with intact domain structure, it lacks higher-order compaction that is typical of chromosomes and displays significantly enhanced chromatin accessibility. Furthermore, ecDNA is shown to have a significantly greater number of ultra-long-range interactions with active chromatin, which provides insight into how the structure of circular ecDNA affects oncogene function, and connects ecDNA biology with modern cancer genomics and epigenetics. Imaging and sequencing approaches are combined to show that extrachromosomal DNA (ecDNA) in cancer is circular and has unique chromatin structure that amplifies oncogene output.

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Crossref · 10.1038/s41586-019-1763-5

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Metadata

Authors
Wu, S., Turner, K. M., Nguyen, N., Raviram, R., Erb, M., Santini, J., Luebeck, J., Rajkumar, U., Diao, Y., Li, B., Zhang, W., Jameson, N., Corces, M. R., Granja, J. M., Chen, X., Coruh, C., Abnousi, A., Houston, J., Ye, Z., Hu, R., Yu, M., Kim, H., Law, J. A., Verhaak, R. G. W., Hu, M., Furnari, F. B., Chang, H. Y., Ren, B., Bafna, V., & Mischel, P. S.
Venue
Nature
Published
2019-11-20
Volume
575
Issue
7784
Pages
699-703
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2991552764
Cited by
667
References
8
FWCI
29.93
Type
journal article
Language
en
Open access
green

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