Tumorigenic activation around HPV integrated sites in head and neck squamous cell carcinoma.
HPV-interacting regions
epigenome
head and neck squamous cell carcinoma
human papillomavirus
Journal
International journal of cancer
ISSN: 1097-0215
Titre abrégé: Int J Cancer
Pays: United States
ID NLM: 0042124
Informations de publication
Date de publication:
01 05 2023
01 05 2023
Historique:
revised:
18
12
2022
received:
26
09
2022
accepted:
03
01
2023
pubmed:
19
1
2023
medline:
9
3
2023
entrez:
18
1
2023
Statut:
ppublish
Résumé
Human papillomavirus (HPV) is causally involved in the development of head and neck squamous cell carcinoma (HNSCC). The integration of HPV drives tumorigenesis through expression of oncogenic viral genes as well as genomic alterations in surrounding regions. To elucidate involvement of epigenetic dysregulation in tumorigenesis, we here performed integrated analyses of the epigenome, transcriptome and interactome using ChIP-seq, RNA-seq and Hi-C and 4C-seq for HPV(+) HNSCCs. We analyzed clinical HNSCC using The Cancer Genome Atlas data and found that genes neighboring HPV integration sites were significantly upregulated and were correlated with oncogenic phenotypes in HPV(+) HNSCCs. While we found four HPV integration sites in HPV(+) HNSCC cell line UPCI-SCC-090 through target enrichment sequencing, 4C-seq revealed 0.5 to 40 Mb of HPV-interacting regions (HPVIRs) where host genomic regions interacted with integrated HPV genomes. While 9% of the HPVIRs were amplified and activated epigenetically forming super-enhancers, the remaining non-amplified regions were found to show a significant increase in H3K27ac levels and an upregulation of genes associated with GO terms, for example, Signaling by WNT and Cell Cycle. Among those genes, ITPR3 was significantly upregulated, involving UPCI-SCC-090-specific super-enhancer formation around the ITPR3 promoter and in the 80-kb-downstream region. The knockdown of ITPR3 by siRNA or CRISPR deletions of the distant enhancer region led to a significant suppression of cell proliferation. The epigenetic activation of HPVIRs was also confirmed in other cell lines, UM-SCC-47 and UM-SCC-104. These data indicate that epigenetic activation in HPVIRs contributes, at least partially, to genesis of HPV(+) HNSCC.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1847-1862Informations de copyright
© 2023 UICC.
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Cancer Genome Atlas Research Network, Albert Einstein College of Medicine, Analytical Biological Services, Barretos Cancer Hospital, Baylor College of Medicine, Beckman Research Institute of City of Hope, Buck Institute for Research on Aging, Canada's Michael Smith Genome Sciences Centre, Harvard Medical School, Helen F. Graham Cancer Center &Research Institute at Christiana Care Health Services, HudsonAlpha Institute for Biotechnology, ILSbio, LLC, Indiana University School of Medicine, Institute of Human Virology, Institute for Systems Biology, International Genomics Consortium, Leidos Biomedical, Massachusetts General Hospital, McDonnell Genome Institute at Washington University, Medical College of Wisconsin, Medical University of South Carolina, Memorial Sloan Kettering Cancer Center, Montefiore Medical Center, NantOmics, National Cancer Institute, National Hospital, Abuja, Nigeria, National Human Genome Research Institute, National Institute of Environmental Health Sciences, National Institute on Deafness &Other Communication Disorders, Ontario Tumour Bank, London Health Sciences Centre, Ontario Tumour Bank, Ontario Institute for Cancer Research, Ontario Tumour Bank, The Ottawa Hospital, Oregon Health &Science University, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, SRA International, St Joseph's Candler Health System, Eli &Edythe L. Broad Institute of Massachusetts Institute of Technology &Harvard University, Research Institute at Nationwide Children's Hospital, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, University of Bergen, University of Texas MD Anderson Cancer Center, University of Abuja Teaching Hospital, University of Alabama at Birmingham, University of California, Irvine, University of California Santa Cruz, University of Kansas Medical Center, University of Lausanne, University of New Mexico Health Sciences Center, University of North Carolina at Chapel Hill, University of Oklahoma Health Sciences Center, Washington University in St Louis et al. Integrated genomic and molecular characterization of cervical cancer. Nature. 2017;543:378-384.