Related Experiment Video
Updated: Jan 13, 2026
10:26
RNAscope for In situ Detection of Transcriptionally Active Human Papillomavirus in Head and Neck Squamous Cell Carcinoma
Published on: March 11, 2014
28.1K
Elucidating Alterations in Viral and Human Gene Expression Due to Human Papillomavirus Integration by Using
Kana Tamai1, Sonoko Kinjo2, Ayumi Taguchi1,3
1Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Bunkyo 113-8655, Japan.
Viruses
|October 29, 2025
Summary
Human papillomavirus (HPV) integration into the human genome drives cervical cancer by activating nearby oncogenes. This study clarifies virus-host interactions, revealing how HPV integration impacts gene expression and promotes cancer development.
Area of Science:
- Oncology
- Virology
- Genomics
Background:
- Human papillomavirus (HPV) infection is a major cause of cervical cancer.
- HPV integration into the host genome leads to oncogene expression, driving cancer development.
- The precise impact of HPV integration on host gene expression is not fully understood.
Purpose of the Study:
- To investigate virus-host interactions following HPV integration using multimodal RNA sequencing.
- To elucidate how HPV integration affects host gene expression and contributes to cervical carcinogenesis.
- To identify specific host genes upregulated near HPV integration sites.
Main Methods:
- Utilized multimodal RNA sequencing, combining total RNA-seq and Cap Analysis of Gene Expression (CAGE).
- Analyzed HPV-derived transcripts and viral-human chimeric RNAs in clinical samples.
- Identified HPV integration sites (ISs) and characterized transcriptional start site (TSS) upregulation patterns.
Main Results:
- HPV-derived transcripts were detected in 17 of 20 samples.
- Identified 16 viral integration sites (ISs) and detected chimeric RNAs in 13 samples.
- Observed upregulation of 12 cancer-related genes near ISs, including MAGI1-AS1, HAS3, CASC8, BIRC2, and MMP12.
Conclusions:
- HPV integration actively drives transcriptional activation of adjacent host genes, including oncogenes.
- This mechanism enhances the expression of cancer-related genes near integration sites.
- Findings deepen the understanding of HPV-induced cervical carcinogenesis and inform precision medicine.
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