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HPV16-LINC00393 Integration Alters Local 3D Genome Architecture in Cervical Cancer Cells

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单位: [1]Tongji Univ, East Hosp, Dept Obstet & Gynecol, Sch Med, Shanghai, Peoples R China [2]Huazhong Univ Sci & Technol, Tongji Hosp, Dept Obstet & Gynecol, Tongji Med Coll, Wuhan, Peoples R China [3]Tongji Univ, Shanghai Matern & Infant Hosp 1, Sch Med, Shanghai Key Lab Maternal Fetal Med, Shanghai, Peoples R China
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关键词: cervical cancer HPV integration Hi-C TAD boundary gene expression

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High-risk human papillomavirus (hrHPV) infection and integration were considered as essential onset factors for the development of cervical cancer. However, the mechanism on how hrHPV integration influences the host genome structure remains not fully understood. In this study, we performed in situ high-throughput chromosome conformation capture (Hi-C) sequencing, chromatin immunoprecipitation and sequencing (ChIP-seq), and RNA-sequencing (RNA-seq) in two cervical cells, 1) NHEK normal human epidermal keratinocyte; and 2) HPV16-integrated SiHa tumorigenic cervical cancer cells. Our results reveal that the HPV-LINC00393 integrated chromosome 13 exhibited significant genomic variation and differential gene expression, which was verified by calibrated CTCF and H3K27ac ChIP-Seq chromatin restructuring. Importantly, HPV16 integration led to differential responses in topologically associated domain (TAD) boundaries, with a decrease in the tumor suppressor KLF12 expression downstream of LINC00393. Overall, this study provides significant insight into the understanding of HPV16 integration induced 3D structural changes and their contributions on tumorigenesis, which supplements the theory basis for the cervical carcinogenic mechanism of HPV16 integration.

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出版当年[2020]版:
大类 | 2 区 医学
小类 | 3 区 免疫学 3 区 微生物学
最新[2025]版:
大类 | 2 区 医学
小类 | 2 区 免疫学 2 区 微生物学
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出版当年[2019]版:
Q2 IMMUNOLOGY Q2 MICROBIOLOGY
最新[2023]版:
Q1 MICROBIOLOGY Q2 IMMUNOLOGY

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第一作者单位: [1]Tongji Univ, East Hosp, Dept Obstet & Gynecol, Sch Med, Shanghai, Peoples R China
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