TY - JOUR A1 - Porter, Vanessa L. A1 - Ng, Michelle A1 - O'Neill, Kieran A1 - MacLennan, Signe A1 - Corbett, Richard D. A1 - Culibrk, Luka A1 - Hamadeh, Zeid A1 - Iden, Marissa A1 - Schmidt, Rachel A1 - Tsaih, Shirng-Wern A1 - Nakisige, Carolyn A1 - Origa, Martin A1 - Orem, Jackson A1 - Chang, Glenn A1 - Fan, Jeremy A1 - Nip, Ka Ming A1 - Akbari, Vahid A1 - Chan, Simon K. A1 - Hopkins, James A1 - Moore, Richard A. A1 - Chuah, Eric A1 - Mungall, Karen L. A1 - Mungall, Andrew J. A1 - Birol, Inanc A1 - Jones, Steven J.M. A1 - Rader, Janet S. A1 - Marra, Marco A. T1 - Rearrangements of viral and human genomes at human papillomavirus integration events and their allele-specific impacts on cancer genome regulation Y1 - 2025/04/01 JF - Genome Research JO - Genome Research SP - 653 EP - 670 DO - 10.1101/gr.279041.124 VL - 35 IS - 4 UR - http://genome.cshlp.org/content/35/4/653.abstract N2 - Human papillomavirus (HPV) integration has been implicated in transforming HPV infection into cancer. To resolve genome dysregulation associated with HPV integration, we performed Oxford Nanopore Technologies long-read sequencing on 72 cervical cancer genomes from a Ugandan data set that was previously characterized using short-read sequencing. We find recurrent structural rearrangement patterns at HPV integration events, which we categorize as del(etion)-like, dup(lication)-like, translocation, multi-breakpoint, or repeat region integrations. Integrations involving amplified HPV–human concatemers, particularly multi-breakpoint events, frequently harbor heterogeneous forms and copy numbers of the viral genome. Transcriptionally active integrants are characterized by unmethylated regions in both the viral and human genomes downstream from the viral transcription start site, resulting in HPV–human fusion transcripts. In contrast, integrants without evidence of expression lack consistent methylation patterns. Furthermore, whereas transcriptional dysregulation is limited to genes within 200 kb of an HPV integrant, dysregulation of the human epigenome in the form of allelic differentially methylated regions affects megabase expanses of the genome, irrespective of the integrant's transcriptional status. By elucidating the structural, epigenetic, and allele-specific impacts of HPV integration, we provide insight into the role of integrated HPV in cervical cancer. ER -