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Multi-omics data reveals novel impacts of human papillomavirus integration on the epigenomic and transcriptomic signatures of cervical tumorigenesis

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单位: [1]Key Laboratory of Smart Farming for Agricultural Animals and Hubei Key Laboratory of Agricultural Bioinformatics, 3D Genomics Research Center, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei, China. [2]Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China. [3]Cancer Biology Research Center (Key Laboratory of the Ministry of Education),Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,Hubei,China. [4]Department of Gynecologic Oncology,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,Hubei,China.
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关键词: cervical cancer DNA‐methylation HPV integration MIR205HG multiomics PROS1

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Integration of human papilloma virus (HPV) DNA into the human genome may progressively contribute to cervical carcinogenesis. To explore how HPV integration affects gene expression by altering DNA methylation during carcinogenesis, we analyzed a multiomics dataset for cervical cancer. We obtained multiomics data by HPV-capture sequencing, RNA sequencing, and Whole Genome Bisulfite Sequencing from 50 patients with cervical cancer. We detected 985 and 485 HPV-integration sites in matched tumor and adjacent paratumor tissues. Of these, LINC00486 (n = 19), LINC02425 (n = 11), LLPH (n = 11), PROS1 (n = 5), KLF5 (n = 4), LINC00392 (n = 3), MIR205HG (n = 3) and NRG1 (n = 3) were identified as high-frequency HPV-integrated genes, including five novel recurrent genes. Patients at clinical stage II had the highest number of HPV integrations. E6 and E7 genes of HPV16 but not HPV18 showed significantly fewer breakpoints than random distribution. HPV integrations occurring in exons were associated with altered gene expression in tumor tissues but not in paratumor tissues. A list of HPV-integrated genes regulated at transcriptomic or epigenetic level was reported. We also carefully checked the candidate genes with regulation pattern correlated in both levels. HPV fragments integrated at MIR205HG mainly came from the L1 gene of HPV16. RNA expression of PROS1 was downregulated when HPV integrated in its upstream region. RNA expression of MIR205HG was elevated when HPV integrated into its enhancer. The promoter methylation levels of PROS1 and MIR205HG were all negatively correlated with their gene expressions. Further experimental validations proved that upregulation of MIR205HG could promote the proliferative and migrative abilities of cervical cancer cells. Our data provides a new atlas for epigenetic and transcriptomic regulations regarding HPV integrations in cervical cancer genome. We demonstrate that HPV integration may affect gene expression by altering methylation levels of MIR205HG and PROS1. Our study provides novel biological and clinical insights into HPV-induced cervical cancer.© 2023 Wiley Periodicals LLC.

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出版当年[2022]版:
大类 | 3 区 医学
小类 | 3 区 病毒学
最新[2025]版:
大类 | 3 区 医学
小类 | 3 区 病毒学
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Q1 VIROLOGY
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Q1 VIROLOGY

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第一作者单位: [1]Key Laboratory of Smart Farming for Agricultural Animals and Hubei Key Laboratory of Agricultural Bioinformatics, 3D Genomics Research Center, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei, China.
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通讯机构: [2]Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China. [3]Cancer Biology Research Center (Key Laboratory of the Ministry of Education),Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,Hubei,China. [*1]Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei, China.
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