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Bønløkke S, Steiniche T, Sorensen BS, Nyvang G, Lindegaard JC, Blaakær J, Bertelsen J, Fuglsang K, Strube ML, Lenz S, Stougaard M. Circulating cell-free HPV DNA is a strong marker for disease severity in cervical cancer. Mol Oncol 2024; 18:1231-1244. [PMID: 37853962 PMCID: PMC11076984 DOI: 10.1002/1878-0261.13538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 10/08/2023] [Accepted: 10/17/2023] [Indexed: 10/20/2023] Open
Abstract
For cervical cancer (CC), circulating cell-free HPV DNA (ccfHPV) may establish disease severity. Furthermore, HPV integration has been correlated to viral load and survival. In this study, pre-treatment plasma from 139 CC cases (50 primary surgery patients, 22 primary surgery + adjuvant oncological therapy patients, and 67 primary oncological therapy patients) was collected (2018-2020). Furthermore, plasma from 25 cervical intraepithelial neoplasia grade 3 patients and 15 healthy women (negative controls) were collected. Two next-generation sequencing (NGS) panels were used to establish ccfHPV presence and human papillomavirus type 16 (HPV16) integration status. ccfHPV was detected in four primary surgery (8.0%), eight primary surgery + adjuvant oncology (36.4%), and 54 primary oncology (80.6%) patients. For primary oncology patients with HPV16-related cancer (n = 37), more ccfHPVneg than ccfHPVpos patients had HPV16 integration (P = 0.04), and in patients with HPV16 integration (n = 13), ccfHPVpos patients had higher disease stages than ccfHPVneg patients (P = 0.05). In summary, ccfHPV presence is related to disease severity and may add to the debated Sedlis criteria used for identifying patients for adjuvant oncological therapy. However, ccfHPV detection is influenced by HPV integration status and disease stage, and these factors need to be considered in ccfHPVneg patients.
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Affiliation(s)
- Sara Bønløkke
- Department of Clinical MedicineAarhus UniversityDenmark
- Department of PathologyAarhus University HospitalDenmark
| | - Torben Steiniche
- Department of Clinical MedicineAarhus UniversityDenmark
- Department of PathologyAarhus University HospitalDenmark
| | - Boe Sandahl Sorensen
- Department of Clinical MedicineAarhus UniversityDenmark
- Department of Clinical BiochemistryAarhus University HospitalDenmark
| | | | | | - Jan Blaakær
- Department of Obstetrics and GynecologyOdense University HospitalDenmark
- Department of Clinical ResearchUniversity of Southern DenmarkOdense MDenmark
| | | | - Katrine Fuglsang
- Department of Clinical MedicineAarhus UniversityDenmark
- Department of Obstetrics and GynecologyAarhus University HospitalDenmark
| | | | - Suzan Lenz
- Private Gynecological Clinic “Suzan Lenz Gynækolog”CopenhagenDenmark
| | - Magnus Stougaard
- Department of Clinical MedicineAarhus UniversityDenmark
- Department of PathologyAarhus University HospitalDenmark
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2
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Rossi NM, Dai J, Xie Y, Wangsa D, Heselmeyer-Haddad K, Lou H, Boland JF, Yeager M, Orozco R, Freites EA, Mirabello L, Gharzouzi E, Dean M. Extrachromosomal Amplification of Human Papillomavirus Episomes Is a Mechanism of Cervical Carcinogenesis. Cancer Res 2023; 83:1768-1781. [PMID: 36971511 PMCID: PMC10239328 DOI: 10.1158/0008-5472.can-22-3030] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/18/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
SIGNIFICANCE Multimers of the HPV genome are generated in cervical tumors replicating as extrachromosomal episomes, which is associated with deletion and rearrangement of the HPV genome and provides a mechanism for oncogenesis without integration.
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Affiliation(s)
- Nicole M. Rossi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Jieqiong Dai
- Leidos Biomedical Research, Inc., National Laboratory for Cancer Research, Frederick, MD, USA
| | - Yi Xie
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Darawalee Wangsa
- Center for Cancer Research, Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Kerstin Heselmeyer-Haddad
- Center for Cancer Research, Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Hong Lou
- Leidos Biomedical Research, Inc., National Laboratory for Cancer Research, Frederick, MD, USA
| | - Joseph F. Boland
- Leidos Biomedical Research, Inc., National Laboratory for Cancer Research, Frederick, MD, USA
| | - Meredith Yeager
- Leidos Biomedical Research, Inc., National Laboratory for Cancer Research, Frederick, MD, USA
| | | | - Enrique Alvirez Freites
- Hospital Central Universitario “Dr. Antonio M Pineda,” Barquisimeto, Lara State, Venezuela, and Universidad Andino de Cusco, Cusco, Perú
| | - Lisa Mirabello
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | | | - Michael Dean
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
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3
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An in vitro carcinogenesis model for cervical cancer harboring episomal form of HPV16. PLoS One 2023; 18:e0281069. [PMID: 36763589 PMCID: PMC9916646 DOI: 10.1371/journal.pone.0281069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/14/2023] [Indexed: 02/11/2023] Open
Abstract
Deregulated expression of viral E6 and E7 genes often caused by viral genome integration of high-risk human papillomaviruses (HR-HPVs) into host DNA and additional host genetic alterations are thought to be required for the development of cervical cancer. However, approximately 15% of invasive cervical cancer specimens contain only episomal HPV genomes. In this study, we investigated the tumorigenic potential of human cervical keratinocytes harboring only the episomal form of HPV16 (HCK1T/16epi). We found that the HPV16 episomal form is sufficient for promoting cell proliferation and colony formation of parental HCK1T cells. Ectopic expression of host oncogenes, MYC and PIK3CAE545K, enhanced clonogenic growth of both early- and late-passage HCK1T/16epi cells, but conferred tumor-initiating ability only to late-passage HCK1T/16epi cells. Interestingly, the expression levels of E6 and E7 were rather lower in late-passage than in early-passage cells. Moreover, additional introduction of a constitutively active MEK1 (MEK1DD) and/or KRASG12V into HCK1T/16epi cells resulted in generation of highly potent tumor-initiating cells. Thus an in vitro model for progression of cervical neoplasia with episomal HPV16 was established. In the model, constitutively active mutation of PIK3CA, PIK3CAE545K, and overexpression of MYC, in the cells with episomal HPV16 genome were not sufficient, but an additional event such as activation of the RAS-MEK pathway was required for progression to tumorigenicity.
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4
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Zhi W, Wei Y, Lazare C, Meng Y, Wu P, Gao P, Lin S, Peng T, Chu T, Liu B, Ding W, Cao C, Wu P. HPV-CCDC106 integration promotes cervical cancer progression by facilitating the high expression of CCDC106 after HPV E6 splicing. J Med Virol 2023; 95:e28009. [PMID: 35854676 PMCID: PMC9796641 DOI: 10.1002/jmv.28009] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 01/11/2023]
Abstract
Human papillomavirus (HPV) integration and high expression of HPV oncogenes (E6 and E7) are important mechanisms for HPV carcinogenesis in cervical cancer. However, the relationship between HPV integration and HPV E6 spliced transcripts, as well as the underlying mechanisms of HPV integration in carcinogenesis after HPV E6 splicing remains unclear. We analyzed HPV-coiled-coil domain containing 106 (CCDC106) integration samples to characterize the roles of HPV integration, E6 spliceosome I (E6*I), and high CCDC106 expression in cervical carcinogenesis. We found that E6 was alternatively spliced into the E6*I transcript in HPV-CCDC016 integration samples with low p53 expression, in contrast to the role of E6*I in preventing p53 degradation in cervical cancer cells. In addition, CCDC106 was highly expressed after HPV-CCDC106 integration, and interacted with p53, resulting in p53 degradation and cervical cancer cell progression in vitro and in vivo. Importantly, when E6*I was highly expressed in cervical cancer cells, overexpression of CCDC106 independently degraded p53 and promoted cervical cancer cell progression. In this study, we explored the underlying mechanisms of HPV-CCDC106 integration in HPV carcinogenesis after HPV E6 splicing, which should provide insight into host genome dysregulation in cervical carcinogenesis.
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Affiliation(s)
- Wenhua Zhi
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Ye Wei
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Cordelle Lazare
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yifan Meng
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Ping Wu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Peipei Gao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Shitong Lin
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Ting Peng
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Tian Chu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Binghan Liu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Wencheng Ding
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Canhui Cao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Shenzhen HospitalShenzhen Peking University‐The Hong Kong University of Science and Technology Medical CenterGuangdongChina
| | - Peng Wu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina,Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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5
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Tian Y, Hu D, Li Y, Yang L. Development of therapeutic vaccines for the treatment of diseases. MOLECULAR BIOMEDICINE 2022; 3:40. [PMID: 36477638 PMCID: PMC9729511 DOI: 10.1186/s43556-022-00098-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/24/2022] [Indexed: 12/12/2022] Open
Abstract
Vaccines are one of the most effective medical interventions to combat newly emerging and re-emerging diseases. Prophylactic vaccines against rabies, measles, etc., have excellent effectiveness in preventing viral infection and associated diseases. However, the host immune response is unable to inhibit virus replication or eradicate established diseases in most infected people. Therapeutic vaccines, expressing specific endogenous or exogenous antigens, mainly induce or boost cell-mediated immunity via provoking cytotoxic T cells or elicit humoral immunity via activating B cells to produce specific antibodies. The ultimate aim of a therapeutic vaccine is to reshape the host immunity for eradicating a disease and establishing lasting memory. Therefore, therapeutic vaccines have been developed for the treatment of some infectious diseases and chronic noncommunicable diseases. Various technological strategies have been implemented for the development of therapeutic vaccines, including molecular-based vaccines (peptide/protein, DNA and mRNA vaccines), vector-based vaccines (bacterial vector vaccines, viral vector vaccines and yeast-based vaccines) and cell-based vaccines (dendritic cell vaccines and genetically modified cell vaccines) as well as combinatorial approaches. This review mainly summarizes therapeutic vaccine-induced immunity and describes the development and status of multiple types of therapeutic vaccines against infectious diseases, such as those caused by HPV, HBV, HIV, HCV, and SARS-CoV-2, and chronic noncommunicable diseases, including cancer, hypertension, Alzheimer's disease, amyotrophic lateral sclerosis, diabetes, and dyslipidemia, that have been evaluated in recent preclinical and clinical studies.
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Affiliation(s)
- Yaomei Tian
- grid.412605.40000 0004 1798 1351College of Bioengineering, Sichuan University of Science & Engineering, No. 519, Huixing Road, Zigong, Sichuan 643000 The People’s Republic of China ,grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China No. 17, Section 3, South Renmin Road, Chengdu, Sichuan 610041 The People’s Republic of China
| | - Die Hu
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China No. 17, Section 3, South Renmin Road, Chengdu, Sichuan 610041 The People’s Republic of China
| | - Yuhua Li
- grid.410749.f0000 0004 0577 6238Department of Arboviral Vaccine, National Institutes for Food and Drug Control, Tiantan Xili, Dongcheng District, Beijing, 100050 The People’s Republic of China
| | - Li Yang
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China No. 17, Section 3, South Renmin Road, Chengdu, Sichuan 610041 The People’s Republic of China
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6
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Long-read sequencing unveils high-resolution HPV integration and its oncogenic progression in cervical cancer. Nat Commun 2022; 13:2563. [PMID: 35538075 PMCID: PMC9091225 DOI: 10.1038/s41467-022-30190-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 04/19/2022] [Indexed: 01/03/2023] Open
Abstract
Integration of human papillomavirus (HPV) DNA into the human genome is considered as a key event in cervical carcinogenesis. Here, we perform comprehensive characterization of large-range virus-human integration events in 16 HPV16-positive cervical tumors using the Nanopore long-read sequencing technology. Four distinct integration types characterized by the integrated HPV DNA segments are identified with Type B being particularly notable as lacking E6/E7 genes. We further demonstrate that multiple clonal integration events are involved in the use of shared breakpoints, the induction of inter-chromosomal translocations and the formation of extrachromosomal circular virus-human hybrid structures. Combined with the corresponding RNA-seq data, we highlight LINC00290, LINC02500 and LENG9 as potential driver genes in cervical cancer. Finally, we reveal the spatial relationship of HPV integration and its various structural variations as well as their functional consequences in cervical cancer. These findings provide insight into HPV integration and its oncogenic progression in cervical cancer. The molecular mechanisms underlying cervical carcinogenesis following integration of HPV DNA into the human genome remain elusive. Here, the authors perform long-read sequencing in 16 HPV16-positive cervical tumors and identify distinct integration types, structural variations and potential driver genes.
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7
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Genetic variability of the HPV16 early genes and LCR. Present and future perspectives. Expert Rev Mol Med 2021; 23:e19. [PMID: 34847982 DOI: 10.1017/erm.2021.18] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Human papillomavirus 16 (HPV16) infection is the aetiologic factor for the development of cervical dysplasia and is regarded as highly carcinogen, because it is implicated in more than 50% of cervical cancer cases, worldwide. The tumourigenic potential of HPV16 has triggered the extensive sequence analysis of viral genome in order to identify nucleotide variations and amino acid substitutions that influence viral oncogenicity and subsequently the initiation and progression of cervical cancer. Nowadays, specific mutations of HPV16 DNA have been associated with an increased risk of high-grade squamous intraepithelial lesions and invasive cervical cancer (ICC) development, including E6: Q14H, H78Y, L83V, Ε7: N29S, S63F, E2: H35Q, P219S, T310K, E5: I65V, whereas highly conserved regions of viral DNA have been extensively characterised. In addition, numerous novel HPV16 mutations are observed among the studied populations from various geographic regions, hence advocating that different HPV16 strains seem to emerge with different tumourigenic capacities. The present review focuses on the variability of the early genes and the long control region, emphasising on the association of specific mutations with the development of severe dysplasia. Finally, it evaluates whether specific regions of HPV16 DNA are able to serve as valuable biomarkers for cervical cancer risk.
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8
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Pang J, Nguyen N, Luebeck J, Ball L, Finegersh A, Ren S, Nakagawa T, Flagg M, Sadat S, Mischel PS, Xu G, Fisch K, Guo T, Cahill G, Panuganti B, Bafna V, Califano J. Extrachromosomal DNA in HPV-Mediated Oropharyngeal Cancer Drives Diverse Oncogene Transcription. Clin Cancer Res 2021; 27:6772-6786. [PMID: 34548317 DOI: 10.1158/1078-0432.ccr-21-2484] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/20/2021] [Accepted: 09/14/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE Human papillomavirus (HPV) plays a major role in oncogenesis and circular extrachromosomal DNA (ecDNA) is found in many cancers. However, the relationship between HPV and circular ecDNA in human cancer is not understood. EXPERIMENTAL DESIGN Forty-four primary tumor tissue samples were obtained from a cohort of patients with HPV-positive oropharynx squamous cell carcinoma (OPSCC). Twenty-eight additional HPV oropharyngeal cancer (HPVOPC) tumors from The Cancer Genome Atlas (TCGA) project were analyzed as a separate validation cohort. Genomic, transcriptomic, proteomic, computational, and functional analyses of HPVOPC were applied to these datasets. RESULTS Our analysis revealed circular, oncogenic DNA in nearly all HPVOPC, with circular human and human-viral hybrid ecDNA present in over a third of HPVOPC and viral circular DNA in remaining tumors. Hybrid ecDNA highly express fusion transcripts from HPV promoters and HPV oncogenes linked to downstream human transcripts that drive oncogenic transformation and immune evasion, and splice multiple, diverse human acceptors to a canonical SA880 viral donor site. HPVOPC have high E6*I expression with specific viral oncogene expression pattern related to viral or hybrid ecDNA composition. CONCLUSIONS Nonchromosomal circular oncogenic DNA is a dominant feature of HPVOPC, revealing an unanticipated link between HPV and ecDNA that leverages the power of extrachromosomal inheritance to drive HPV and somatic oncogene expression.
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Affiliation(s)
- John Pang
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Nam Nguyen
- UC San Diego Jacobs School of Engineering, Department of Computer Science and Engineering, La Jolla, California
| | - Jens Luebeck
- Bioinformatics & Systems Biology Graduate Program, University of California at San Diego, La Jolla, California
| | - Laurel Ball
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Andrey Finegersh
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Shuling Ren
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Takuya Nakagawa
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Mitchell Flagg
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Sayed Sadat
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Paul S Mischel
- Stanford University School of Medicine, Department of Pathology, ChEM-H, Stanford, California
| | - Guorong Xu
- UC San Diego School of Medicine, Center for Computational Biology and Bioinformatics, La Jolla, California
| | - Kathleen Fisch
- UC San Diego School of Medicine, Center for Computational Biology and Bioinformatics, La Jolla, California
| | - Theresa Guo
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California.,Johns Hopkins University School of Medicine, Otolaryngology-Head and Neck Surgery, Baltimore, Maryland
| | - Gabrielle Cahill
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Bharat Panuganti
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California
| | - Vineet Bafna
- UC San Diego Jacobs School of Engineering, Department of Computer Science and Engineering, La Jolla, California.
| | - Joseph Califano
- UC San Diego School of Medicine, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, La Jolla, California. .,Bioinformatics & Systems Biology Graduate Program, University of California at San Diego, La Jolla, California
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9
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Aydin AM, Chahoud J, Adashek JJ, Azizi M, Magliocco A, Ross JS, Necchi A, Spiess PE. Understanding genomics and the immune environment of penile cancer to improve therapy. Nat Rev Urol 2020; 17:555-570. [DOI: 10.1038/s41585-020-0359-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2020] [Indexed: 02/07/2023]
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10
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Díaz-Moreno N, Osorio JC, García-Perdomo HA, Castillo A. In silico analysis of genomic variables associated to HPV16 integration sites. INFECTIO 2020. [DOI: 10.22354/in.v24i2.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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11
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Jamal A, Shahid I, Naveed Shahid M, Saleh Alshmemri M, Saeed Bahwerth F. Human Papillomavirus, MicroRNA and their Role in Cervical Cancer Progression, Diagnosis and Treatment Response: A Comprehensive Review. Pak J Biol Sci 2020; 23:977-988. [PMID: 32700847 DOI: 10.3923/pjbs.2020.977.988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Human Papillomavirus (HPV) is sexually transmitted and linked with vaginal, vulvar and cervix cancers in females, penile cancer in male, while anal and oropharyngeal cancer in both genders. Cervical cancer is ranked as third most identified cancer among females globally and is the fourth leading reason of cancer related mortality. The main aim of current study is to highlight the key role of miRNA in cervical cancer development, progression and their therapeutic responses. Current study entailed more than 50 PubMed cited articles related to miRNA role in cervical cancer. Studies have elucidated the role of miRNAs regulation in gene expression at post-transcriptional and translational level by targeting significant genes and therefore involved in cervical cancer. miRNAs control several cellular pathways involved in development of pre-malignant to metastatic stage and proliferation to malignancy. Current review elucidated and elaborated the key role of miRNA their application, treatment and therapeutic responses in cervical cancer.
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12
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Biological Pathways of HPV-Induced Carcinogenesis. Sex Transm Infect 2020. [DOI: 10.1007/978-3-030-02200-6_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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13
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Pokrývková B, Saláková M, Šmahelová J, Vojtěchová Z, Novosadová V, Tachezy R. Detailed Characteristics of Tonsillar Tumors with Extrachromosomal or Integrated Form of Human Papillomavirus. Viruses 2019; 12:v12010042. [PMID: 31905862 PMCID: PMC7019694 DOI: 10.3390/v12010042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/22/2019] [Accepted: 12/26/2019] [Indexed: 12/14/2022] Open
Abstract
The human papillomavirus (HPV) integration, the critical step in viral carcinogenesis, most frequently occurs in the E2 gene, which results in its inactivation and in an increase of E6/E7 transcription. However, in a substantial number of tumors, the virus is present in an extrachromosomal form. For those tumors, the transformation mechanisms are not fully elucidated. Here we evaluated the possible mechanism of inactivating the E2 without interruption of the gene, methylation or mutation of the E2 binding sites (E2BSs) in HPV16-positive tonsillar tumors by next-generation and Sanger sequencing. Viral genome status was analyzed by the amplification of papillomavirus oncogene transcripts assay (APOT) and mRNA mapping, and expression of viral oncogenes was performed by qPCR. The methylation of E2BSs was significantly higher in tumors with an integrated, in comparison to extrachromosomal, form of the viral genome. No mutations were detected in the E2BSs. The viral oncogenes were equally expressed in samples with an integrated and extrachromosomal form of the virus. Only the nucleotide variants were identified in the E2 gene. No proposed mechanism of E2 inactivation was confirmed in tonsillar tumors with an extrachromosomal form of the HPV genome. The expression of E6/E7 genes seems to be sufficient to initiate and maintain the carcinogenic process.
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Affiliation(s)
- Barbora Pokrývková
- Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, Průmyslová 595, 25250 Vestec, Czech Republic; (B.P.); (J.Š.); (Z.V.); (R.T.)
| | - Martina Saláková
- Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, Průmyslová 595, 25250 Vestec, Czech Republic; (B.P.); (J.Š.); (Z.V.); (R.T.)
- Correspondence: ; Tel.: +42-032-587-3920
| | - Jana Šmahelová
- Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, Průmyslová 595, 25250 Vestec, Czech Republic; (B.P.); (J.Š.); (Z.V.); (R.T.)
| | - Zuzana Vojtěchová
- Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, Průmyslová 595, 25250 Vestec, Czech Republic; (B.P.); (J.Š.); (Z.V.); (R.T.)
| | - Vendula Novosadová
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, BIOCEV, Průmyslová 595, 25250 Vestec, Czech Republic;
| | - Ruth Tachezy
- Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, Průmyslová 595, 25250 Vestec, Czech Republic; (B.P.); (J.Š.); (Z.V.); (R.T.)
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14
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Ehrig F, Häfner N, Driesch C, Kraus Christiansen I, Beer K, Schmitz M, Runnebaum IB, Dürst M. Differences in Stability of Viral and Viral-Cellular Fusion Transcripts in HPV-Induced Cervical Cancers. Int J Mol Sci 2019; 21:ijms21010112. [PMID: 31877944 PMCID: PMC6981427 DOI: 10.3390/ijms21010112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 12/14/2022] Open
Abstract
HPV-DNA integration results in dysregulation of viral oncogene expression. Because viral-cellular fusion transcripts inherently lack the viral AU-rich elements of the 3’UTR, they are considered to be more stable than episome-derived transcripts. The aim of this study is to provide formal proof for this assumption by comparing the stability of viral early transcripts derived from episomal and integrated HPV16 DNA, respectively. Full-length cDNA of three fusion transcripts comprising viral and cellular sequences in sense orientation were amplified and cloned into the adeno-viral-vector pAd/CMV/V5-DEST. The most abundant HPV16 oncogene transcript E6*I-E7-E1vE4-E5 with and without 3’UTR, served as reference and control, respectively. Human primary keratinocytes were transduced using high titer virus stocks. qRT-PCR was performed to determine mRNA stability in relation to GAPDH in the presence of actinomycin-D. In four independent transduction experiments, all three viral-cellular fusion transcripts were significantly more stable compared to the episome-derived reference. Among the three viral-cellular fusion transcripts the most stable transcript was devoid of the instability core motif “AUUUA”. Unexpectedly, there was no significant difference in the stability between the episome-derived transcripts either with or without 3’UTR, indicating that the AU-rich elements of the 3’UTR are not contributing to RNA stability. Instead, the three “AUUUA” motifs located in the untranslated region between the viral E4 and E5 genes may be responsible for the instability. This is the first report showing that authentic viral-cellular fusion transcripts are more stable than episome-derived transcripts. The longer half-life of the fusion transcripts may result in increased levels of viral oncoproteins and thereby drive the carcinogenic process.
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Affiliation(s)
- Franziska Ehrig
- Department of Gynecology, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany; (F.E.); (N.H.); (C.D.); (K.B.); (I.B.R.)
| | - Norman Häfner
- Department of Gynecology, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany; (F.E.); (N.H.); (C.D.); (K.B.); (I.B.R.)
| | - Corina Driesch
- Department of Gynecology, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany; (F.E.); (N.H.); (C.D.); (K.B.); (I.B.R.)
| | - Irene Kraus Christiansen
- Department of Microbiology and Infection Control, Akershus University Hospital, 1478 Lørenskog, Norway;
| | - Katrin Beer
- Department of Gynecology, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany; (F.E.); (N.H.); (C.D.); (K.B.); (I.B.R.)
| | | | - Ingo B. Runnebaum
- Department of Gynecology, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany; (F.E.); (N.H.); (C.D.); (K.B.); (I.B.R.)
| | - Matthias Dürst
- Department of Gynecology, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany; (F.E.); (N.H.); (C.D.); (K.B.); (I.B.R.)
- Correspondence: ; Tel.: +49-3641-939-0890
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15
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Basto DL, Chaves CBP, Felix SP, Amaro-Filho SM, Vieira VC, Martins LFL, de Carvalho NA, Almeida LM, Moreira MÂM. The papillomavirus E5 gene does not affect EGFR transcription and overall survival in cervical cancer. J Med Virol 2019; 92:1283-1289. [PMID: 31696949 DOI: 10.1002/jmv.25624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/04/2019] [Indexed: 01/07/2023]
Abstract
INTRODUCTION The human papillomavirus (HPV) E5 gene encodes a small and highly hydrophobic oncoprotein that affects immune evasion, cell proliferation, loss of apoptotic capacity and angiogenesis in tumors. E5 shows an affinity for biological membranes and was associated with an increase of epidermal growth factor/epidermal growth factor receptor (EGF/EGFR) signaling through the accumulation of EGFR in cellular membranes. Due to the frequent integration of the HPV genome into the host cell genome, E5 is frequently not transcribed in cervical tumors. AIM In this study we looked forward to verifying whether the potential expression of E5 protein in human papillomavirus 16 positive (HPV16+ ) and human papillomavirus 18 positive (HPV18+ ) cervical tumors was associated with levels of EGFR and vascular endothelial growth factor A (VEGFA) transcription and with patients overall survival. RESULTS Association between the presence of E5 transcripts and viral genome disruption was observed for HPV16+ and HPV18+ tumors. Association was not observed between tumors potentially capable of translating E5 and EGFR or VEGFA transcriptional levels. Similarly, the capability of translating E5 and overall survival in patients with HPV16+ squamous cell carcinoma tumors stage ≥ IB2 were not associated. CONCLUSION The likely presence of E5 transcripts was neither associated to a higher activity of the EGFR-VEGFA pathway nor to the overall survival of patients with HPV16+ squamous cell carcinoma in stages ≥ IB2.
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Affiliation(s)
- Diogo Lisbôa Basto
- Department of Genetics, Post-Graduate Program in Genetics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Genetics Program, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Cláudia Bessa Pereira Chaves
- Gynecologic Oncology Department and Clinical Research Division, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | | | | | - Valdimara Corrêa Vieira
- Oncovirology Program, Instituto Nacional de Câncer, Rio de Janeiro, Brazil.,Department of Immunology, Harvard Medical School, Boston, Massachusetts
| | | | | | - Liz Maria Almeida
- Population Research Program, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil
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16
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Protecting Tumors by Preventing Human Papilloma Virus Antigen Presentation: Insights from Emerging Bioinformatics Algorithms. Cancers (Basel) 2019; 11:cancers11101543. [PMID: 31614809 PMCID: PMC6826432 DOI: 10.3390/cancers11101543] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/24/2019] [Accepted: 10/09/2019] [Indexed: 12/11/2022] Open
Abstract
Recent developments in bioinformatics technologies have led to advances in our understanding of how oncogenic viruses such as the human papilloma virus drive cancer progression and evade the host immune system. Here, we focus our review on understanding how these emerging bioinformatics technologies influence our understanding of how human papilloma virus (HPV) drives immune escape in cancers of the head and neck, and how these new informatics approaches may be generally applicable to other virally driven cancers. Indeed, these tools enable researchers to put existing data from genome wide association studies, in which high risk alleles have been identified, in the context of our current understanding of cellular processes regulating neoantigen presentation. In the future, these new bioinformatics approaches are highly likely to influence precision medicine-based decision making for the use of immunotherapies in virally driven cancers.
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17
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Huebbers CU, Verhees F, Poluschkin L, Olthof NC, Kolligs J, Siefer OG, Henfling M, Ramaekers FCS, Preuss SF, Beutner D, Seehawer J, Drebber U, Korkmaz Y, Lam WL, Vucic EA, Kremer B, Klussmann JP, Speel EJM. Upregulation of AKR1C1 and AKR1C3 expression in OPSCC with integrated HPV16 and HPV-negative tumors is an indicator of poor prognosis. Int J Cancer 2019; 144:2465-2477. [PMID: 30367463 DOI: 10.1002/ijc.31954] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 09/14/2018] [Accepted: 10/09/2018] [Indexed: 12/25/2022]
Abstract
Different studies have shown that HPV16-positive OPSCC can be subdivided based on integration status (integrated, episomal and mixed forms). Because we showed that integration neither affects the levels of viral genes, nor those of virally disrupted human genes, a genome-wide screen was performed to identify human genes which expression is influenced by viral integration and have clinical relevance. Thirty-three fresh-frozen HPV-16 positive OPSCC samples with known integration status were analyzed by mRNA expression profiling. Among the genes of interest, Aldo-keto-reductases 1C1 and 1C3 (AKR1C1, AKR1C3) were upregulated in tumors with viral integration. Additionally, 141 OPSCC, including 48 HPV-positive cases, were used to validate protein expression by immunohistochemistry. Results were correlated with clinical and histopathological data. Non-hierarchical clustering resulted in two main groups differing in mRNA expression patterns, which interestingly corresponded with viral integration status. In OPSCC with integrated viral DNA, often metabolic pathways were deregulated with frequent upregulation of AKR1C1 and AKR1C3 transcripts. Survival analysis of 141 additionally immunostained OPSCC showed unfavorable survival rates for tumors with upregulation of AKR1C1 or AKR1C3 (both p <0.0001), both in HPV-positive (p ≤0.001) and -negative (p ≤0.017) tumors. OPSCC with integrated HPV16 show upregulation of AKR1C1 and AKR1C3 expression, which strongly correlates with poor survival rates. Also in HPV-negative tumors, upregulation of these proteins correlates with unfavorable outcome. Deregulated AKR1C expression has also been observed in other tumors, making these genes promising candidates to indicate prognosis. In addition, the availability of inhibitors of these gene products may be utilized for drug treatment.
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Affiliation(s)
- Christian U Huebbers
- Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
| | - Femke Verhees
- Department of Otorhinolaryngology and Head and Neck Surgery, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Leonard Poluschkin
- Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
| | - Nadine C Olthof
- Department of Otorhinolaryngology and Head and Neck Surgery, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands.,Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Jutta Kolligs
- Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
| | - Oliver G Siefer
- Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
| | - Mieke Henfling
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Frans C S Ramaekers
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Simon F Preuss
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Cologne, Cologne, Germany
| | - Dirk Beutner
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Göttingen, Germany
| | - Julia Seehawer
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Cologne, Cologne, Germany
| | - Uta Drebber
- Institute for Pathology, University Hospital of Cologne, Cologne, Germany
| | - Yüksel Korkmaz
- Institute for Experimental Dental Research and Oral Musculoskeletal Biology, University Hospital of Cologne, Cologne, Germany.,Department I of Anatomy, University Hospital of Cologne, Cologne, Germany.,Center for Biochemistry, University Hospital of Cologne, Cologne, Germany
| | - Wan L Lam
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, Canada
| | - Emily A Vucic
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, Canada
| | - Bernd Kremer
- Department of Otorhinolaryngology and Head and Neck Surgery, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Jens P Klussmann
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Cologne, Cologne, Germany
| | - Ernst-Jan M Speel
- Department of Pathology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
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18
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Brant AC, Menezes AN, Felix SP, de Almeida LM, Sammeth M, Moreira MAM. Characterization of HPV integration, viral gene expression and E6E7 alternative transcripts by RNA-Seq: A descriptive study in invasive cervical cancer. Genomics 2018; 111:1853-1861. [PMID: 30552977 DOI: 10.1016/j.ygeno.2018.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 12/27/2022]
Abstract
Scarce data are available on the expression of papillomavirus genome and the frequency of alternatively spliced E6E7 mRNAs in invasive cervical cancer. We carried out a comprehensive characterization of HPV expression by RNA-Seq analysis in 22 invasive cervical cancer with HPV16 or HPV18, characterizing the presence of integrated/episomal viral DNA, the integration sites in human genome and the proportion of alternative splicing products of E6 and E7 genes. The expression patterns suggested the presence of episomal and/or integrated viral DNA, with integration detected in most tumors, frequently occurring within human genes in HPV18+ and in intergenic regions in HPV16+ tumors. Alternative splicing of E6E7 transcripts showed E6*I as the most frequent isoform for both viral types, followed by E6*II and E6/E7 (unspliced) transcripts in HPV16+, and by E6/E7 in HPV18+ tumors. Previously described E6*VI and E6*V transcript isoforms for HPV16, and E6*X for HPV18, were rare or not detected.
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Affiliation(s)
- Ayslan C Brant
- Genetics Program, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil; Post-Graduate Program in Genetics, Universidade Federal do Rio de Janeiro (UFRJ), Brazil
| | - Albert N Menezes
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, UK
| | - Shayany P Felix
- Genetics Program, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil
| | - Liz M de Almeida
- Department of Population Research, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil.
| | - Michael Sammeth
- Department of Bioinformatics, Transcriptomics and Functional Genomics, Federal University of Rio de Janeiro (UFRJ), Brazil.
| | - Miguel A M Moreira
- Genetics Program, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil.
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19
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Hu Z, Ma D. The precision prevention and therapy of HPV-related cervical cancer: new concepts and clinical implications. Cancer Med 2018; 7:5217-5236. [PMID: 30589505 PMCID: PMC6198240 DOI: 10.1002/cam4.1501] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/14/2018] [Accepted: 03/21/2018] [Indexed: 12/14/2022] Open
Abstract
Cervical cancer is the third most common cancer in women worldwide, with concepts and knowledge about its prevention and treatment evolving rapidly. Human papillomavirus (HPV) has been identified as a major factor that leads to cervical cancer, although HPV infection alone cannot cause the disease. In fact, HPV-driven cancer is a small probability event because most infections are transient and could be cleared spontaneously by host immune system. With persistent HPV infection, decades are required for progression to cervical cancer. Therefore, this long time window provides golden opportunity for clinical intervention, and the fundament here is to elucidate the carcinogenic pattern and applicable targets during HPV-host interaction. In this review, we discuss the key factors that contribute to the persistence of HPV and cervical carcinogenesis, emerging new concepts and technologies for cancer interventions, and more urgently, how these concepts and technologies might lead to clinical precision medicine which could provide prediction, prevention, and early treatment for patients.
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Affiliation(s)
- Zheng Hu
- Department of Gynecological oncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd RoadYuexiu, GuangzhouGuangdongChina
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan, Hubei430030China
| | - Ding Ma
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan, Hubei430030China
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20
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Groves IJ, Coleman N. Human papillomavirus genome integration in squamous carcinogenesis: what have next-generation sequencing studies taught us? J Pathol 2018; 245:9-18. [PMID: 29443391 DOI: 10.1002/path.5058] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 02/01/2018] [Accepted: 02/06/2018] [Indexed: 12/31/2022]
Abstract
Human papillomavirus (HPV) infection is associated with ∼5% of all human cancers, including a range of squamous cell carcinomas. Persistent infection by high-risk HPVs (HRHPVs) is associated with the integration of virus genomes (which are usually stably maintained as extrachromosomal episomes) into host chromosomes. Although HRHPV integration rates differ across human sites of infection, this process appears to be an important event in HPV-associated neoplastic progression, leading to deregulation of virus oncogene expression, host gene expression modulation, and further genomic instability. However, the mechanisms by which HRHPV integration occur and by which the subsequent gene expression changes take place are incompletely understood. The advent of next-generation sequencing (NGS) of both RNA and DNA has allowed powerful interrogation of the association of HRHPVs with human disease, including precise determination of the sites of integration and the genomic rearrangements at integration loci. In turn, these data have indicated that integration occurs through two main mechanisms: looping integration and direct insertion. Improved understanding of integration sites is allowing further investigation of the factors that provide a competitive advantage to some integrants during disease progression. Furthermore, advanced approaches to the generation of genome-wide samples have given novel insights into the three-dimensional interactions within the nucleus, which could act as another layer of epigenetic control of both virus and host transcription. It is hoped that further advances in NGS techniques and analysis will not only allow the examination of further unanswered questions regarding HPV infection, but also direct new approaches to treating HPV-associated human disease. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Ian J Groves
- Department of Pathology, University of Cambridge, Cambridge, UK
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21
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Anayannis NV, Schlecht NF, Ben-Dayan M, Smith RV, Belbin TJ, Ow TJ, Blakaj DM, Burk RD, Leonard SM, Woodman CB, Parish JL, Prystowsky MB. Association of an intact E2 gene with higher HPV viral load, higher viral oncogene expression, and improved clinical outcome in HPV16 positive head and neck squamous cell carcinoma. PLoS One 2018; 13:e0191581. [PMID: 29451891 PMCID: PMC5815588 DOI: 10.1371/journal.pone.0191581] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 01/08/2018] [Indexed: 11/18/2022] Open
Abstract
To assess the relationship of E2 gene disruption with viral gene expression and clinical outcome in human papillomavirus (HPV) positive head and neck squamous cell carcinoma, we evaluated 31 oropharyngeal and 17 non-oropharyngeal HPV16 positive carcinomas using two PCR-based methods to test for disruption of E2, followed by Sanger sequencing. Expression of HPV16 E6, E7 and E2 transcripts, along with cellular ARF and INK4A, were also assessed by RT-qPCR. Associations between E2 disruption, E2/E6/E7 expression, and clinical outcome were evaluated by Kaplan-Meier analysis for loco-regional recurrence and disease-specific survival. The majority (n = 21, 68%) of HPV16 positive oropharyngeal carcinomas had an intact E2 gene, whereas the majority of HPV16 positive non-oropharyngeal carcinomas (n = 10, 59%) had a disrupted E2 gene. Three of the oropharyngeal tumors and two of the non-oropharyngeal tumors had deletions within E2. Detection of an intact E2 gene was associated with a higher DNA viral load and increased E2/E6/E7, ARF and INK4A expression in oropharyngeal tumors. Oropharyngeal carcinomas with an intact E2 had a lower risk of loco-regional recurrence (log-rank p = 0.04) and improved disease-specific survival (p = 0.03) compared to tumors with disrupted E2. In addition, high E7 expression was associated with lower risk of loco-regional recurrence (p = 0.004) as was high E6 expression (p = 0.006). In summary, an intact E2 gene is more common in HPV16 positive oropharyngeal than non-oropharyngeal carcinomas; the presence of an intact E2 gene is associated with higher HPV viral load, higher viral oncogene expression, and improved clinical outcome compared to patients with a disrupted E2 gene in oropharyngeal cancer.
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Affiliation(s)
- Nicole V. Anayannis
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
| | - Nicolas F. Schlecht
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Medicine (Oncology), Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, United States of America
| | - Miriam Ben-Dayan
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
| | - Richard V. Smith
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Otorhinolaryngology-Head and Neck Surgery, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
| | - Thomas J. Belbin
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Discipline of Oncology, Faculty of Medicine, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada
| | - Thomas J. Ow
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Otorhinolaryngology-Head and Neck Surgery, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
| | - Duk M. Blakaj
- The James Cancer Center, Ohio State University, Columbus, OH, United States of America
| | - Robert D. Burk
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Pediatrics (Genetics), Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Microbiology & Immunology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
- Department of Obstetrics, Gynecology & Women’s Health, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
| | - Sarah M. Leonard
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Ciaran B. Woodman
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Joanna L. Parish
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Michael B. Prystowsky
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, United States of America
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22
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Kranjec C, Holleywood C, Libert D, Griffin H, Mahmood R, Isaacson E, Doorbar J. Modulation of basal cell fate during productive and transforming HPV-16 infection is mediated by progressive E6-driven depletion of Notch. J Pathol 2017; 242:448-462. [PMID: 28497579 PMCID: PMC5601300 DOI: 10.1002/path.4917] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 04/13/2017] [Accepted: 04/24/2017] [Indexed: 11/10/2022]
Abstract
In stratified epithelia such as the epidermis, homeostasis is maintained by the proliferation of cells in the lower epithelial layers and the concomitant loss of differentiated cells from the epithelial surface. These differentiating keratinocytes progressively stratify and form a self‐regenerating multi‐layered barrier that protects the underlying dermis. In such tissue, the continual loss and replacement of differentiated cells also limits the accumulation of oncogenic mutations within the tissue. Inactivating mutations in key driver genes, such as TP53 and NOTCH1, reduce the proportion of differentiating cells allowing for the long‐term persistence of expanding mutant clones in the tissue. Here we show that through the expression of E6, HPV‐16 prevents the early fate commitment of human keratinocytes towards differentiation and confers a strong growth advantage to human keratinocytes. When E6 is expressed either alone or with E7, it promotes keratinocyte proliferation at high cell densities, through the combined inactivation of p53 and Notch1. In organotypic raft culture, the activity of E6 is restricted to the basal layer of the epithelium and is enhanced during the progression from productive to abortive or transforming HPV‐16 infection. Consistent with this, the expression of p53 and cleaved Notch1 becomes progressively more disrupted, and is associated with increased basal cell density and reduced commitment to differentiation. The expression of cleaved Notch1 is similarly disrupted also in HPV‐16‐positive cervical lesions, depending on neoplastic grade. When taken together, these data depict an important role of high‐risk E6 in promoting the persistence of infected keratinocytes in the basal and parabasal layers through the inactivation of gene products that are commonly mutated in non‐HPV‐associated neoplastic squamous epithelia. © 2017 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Christian Kranjec
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, UK.,The Francis Crick Institute Mill Hill Laboratory, The Ridgeway, Mill Hill, London, UK
| | - Christina Holleywood
- The Francis Crick Institute Mill Hill Laboratory, The Ridgeway, Mill Hill, London, UK
| | - Diane Libert
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, UK
| | - Heather Griffin
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, UK.,The Francis Crick Institute Mill Hill Laboratory, The Ridgeway, Mill Hill, London, UK
| | - Radma Mahmood
- The Francis Crick Institute Mill Hill Laboratory, The Ridgeway, Mill Hill, London, UK
| | - Erin Isaacson
- The Francis Crick Institute Mill Hill Laboratory, The Ridgeway, Mill Hill, London, UK
| | - John Doorbar
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, UK.,The Francis Crick Institute Mill Hill Laboratory, The Ridgeway, Mill Hill, London, UK
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23
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Koneva LA, Zhang Y, Virani S, Hall PB, McHugh JB, Chepeha DB, Wolf GT, Carey TE, Rozek LS, Sartor MA. HPV Integration in HNSCC Correlates with Survival Outcomes, Immune Response Signatures, and Candidate Drivers. Mol Cancer Res 2017; 16:90-102. [PMID: 28928286 DOI: 10.1158/1541-7786.mcr-17-0153] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/12/2017] [Accepted: 09/15/2017] [Indexed: 12/12/2022]
Abstract
The incidence of human papillomavirus (HPV)-related oropharynx cancer has steadily increased over the past two decades and now represents a majority of oropharyngeal cancer cases. Integration of the HPV genome into the host genome is a common event during carcinogenesis that has clinically relevant effects if the viral early genes are transcribed. Understanding the impact of HPV integration on clinical outcomes of head and neck squamous cell carcinoma (HNSCC) is critical for implementing deescalated treatment approaches for HPV+ HNSCC patients. RNA sequencing (RNA-seq) data from HNSCC tumors (n = 84) were used to identify and characterize expressed integration events, which were overrepresented near known head and neck, lung, and urogenital cancer genes. Five genes were recurrent, including CD274 (PD-L1) A significant number of genes detected to have integration events were found to interact with Tp63, ETS, and/or FOX1A. Patients with no detected integration had better survival than integration-positive and HPV- patients. Furthermore, integration-negative tumors were characterized by strongly heightened signatures for immune cells, including CD4+, CD3+, regulatory, CD8+ T cells, NK cells, and B cells, compared with integration-positive tumors. Finally, genes with elevated expression in integration-negative specimens were strongly enriched with immune-related gene ontology terms, while upregulated genes in integration-positive tumors were enriched for keratinization, RNA metabolism, and translation.Implications: These findings demonstrate the clinical relevancy of expressed HPV integration, which is characterized by a change in immune response and/or aberrant expression of the integration-harboring cancer-related genes, and suggest strong natural selection for tumor cells with expressed integration events in key carcinogenic genes. Mol Cancer Res; 16(1); 90-102. ©2017 AACR.
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Affiliation(s)
- Lada A Koneva
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | - Yanxiao Zhang
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | - Shama Virani
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan.,Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | - Pelle B Hall
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | - Jonathan B McHugh
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
| | - Douglas B Chepeha
- Department of Otolaryngology/Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan
| | - Gregory T Wolf
- Department of Otolaryngology/Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan
| | - Thomas E Carey
- Department of Otolaryngology/Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan
| | - Laura S Rozek
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan. .,Department of Otolaryngology/Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan
| | - Maureen A Sartor
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan.
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Hoppe-Seyler K, Bossler F, Braun JA, Herrmann AL, Hoppe-Seyler F. The HPV E6/E7 Oncogenes: Key Factors for Viral Carcinogenesis and Therapeutic Targets. Trends Microbiol 2017; 26:158-168. [PMID: 28823569 DOI: 10.1016/j.tim.2017.07.007] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/12/2017] [Accepted: 07/28/2017] [Indexed: 10/19/2022]
Abstract
Human papillomavirus (HPV)-induced cancers are expected to remain a major health problem worldwide for decades. The growth of HPV-positive cancer cells depends on the sustained expression of the viral E6 and E7 oncogenes which act in concert with still poorly defined cellular alterations. E6/E7 constitute attractive therapeutic targets since E6/E7 inhibition rapidly induces senescence in HPV-positive cancer cells. This cellular response is linked to the reconstitution of the antiproliferative p53 and pRb pathways, and to prosenescent mTOR signaling. Hypoxic HPV-positive cancer cells could be a major obstacle for treatment strategies targeting E6/E7 since they downregulate E6/E7 but evade senescence through hypoxia-induced mTOR impairment. Prospective E6/E7 inhibitors may therefore benefit from a combination with treatment strategies directed against hypoxic tumor cells.
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Affiliation(s)
- Karin Hoppe-Seyler
- Molecular Therapy of Virus-Associated Cancers, German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany
| | - Felicitas Bossler
- Molecular Therapy of Virus-Associated Cancers, German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany
| | - Julia A Braun
- Molecular Therapy of Virus-Associated Cancers, German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany
| | - Anja L Herrmann
- Molecular Therapy of Virus-Associated Cancers, German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany
| | - Felix Hoppe-Seyler
- Molecular Therapy of Virus-Associated Cancers, German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany.
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25
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Das Ghosh D, Mukhopadhyay I, Bhattacharya A, Roy Chowdhury R, Mandal NR, Roy S, Sengupta S. Impact of genetic variations and transcriptional alterations of HLA class I genes on cervical cancer pathogenesis. Int J Cancer 2017; 140:2498-2508. [PMID: 28268260 DOI: 10.1002/ijc.30681] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 02/23/2017] [Indexed: 01/21/2023]
Abstract
In a novel attempt to understand the variations in DNA sequences underlying HLA class I alleles associated with HPV16-related CaCx, we determined the alleles by reconstructing SNP-based haplotypes from resequencing of the most polymorphic exons 2 and 3 of HLA-A, HLA-B and HLA-C. We also determined the impact of SNPs and transcriptional alterations of the genes on CaCx. A high density of SNPs was identified from resequencing. HLA expression was determined by real-time PCR. We identified that even a single associated HLA allele had many underlying SNP-based haplotypes. Out of the most frequent (≥5%) HLA class I alleles, HLA-B*40:06 and HLA-B*15:02 respectively imparted significant risk towards and protection from CaCx as well as HPV16 infection. Employing median-joining networks to detect clusters of sequence-variations for specific HLA alleles, we found the protective SNP-based signature, GAATTTA, in all SNP-based haplotypes of HLA-B*15:02 allele. The signature was derived from seven SNPs within HLA-B which were newly associated with the disease. Contrarily, similarly derived risk-signature, TTGCGCC, mapped only to 52% of SNP-based haplotypes of HLA-B*40:06 allele. This indicated that all SNP-based haplotypes underlying a particular associated HLA allele might or might not have a single signature of risk/protection. HLA-A, HLA-B and HLA-C expressions were downregulated among CaCx cases compared to asymptomatic infections and HPV-negative controls. HLA-A and HLA-B were repressed in both cases harbouring episomal and integrated HPV16, whereas HLA-C in only the latter. Novel genetic variations and differential downregulation-patterns of HLA class I have a significant bearing on HPV16-related CaCx pathogenesis.
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Affiliation(s)
| | | | - Amrapali Bhattacharya
- Cancer Genomics and Epigenomics, National Institute of Biomedical Genomics, Netaji Subhas Sanatorium, Kalyani, West Bengal, India
| | - Rahul Roy Chowdhury
- Department of Gynecology, Saroj Gupta Cancer Centre and Research Institute, Kolkata, India
| | - Nidhu Ranjan Mandal
- Department of Gynecology, Saroj Gupta Cancer Centre and Research Institute, Kolkata, India
| | - Sudipta Roy
- Department of Pathology, Sri Aurobindo Seva Kendra, Kolkata, West Bengal, India
| | - Sharmila Sengupta
- Cancer Genomics and Epigenomics, National Institute of Biomedical Genomics, Netaji Subhas Sanatorium, Kalyani, West Bengal, India
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Abstract
Human papillomaviruses (HPVs) are a necessary cause of anogenital squamous cell carcinomas (SCC) and a subgroup of head and neck SCC, i.e., those originating in the oropharynx. The key events in high-risk HPV (HRHPV)-associated neoplastic progression include persistent infection, deregulated expression of virus early genes in basal epithelial cells, local immune suppression and the accumulation of chromosomal alterations. Evidence for these events particularly comes from studies of uterine cervical carcinogenesis; primary premalignant HRHPV-positive lesions of the head and neck mucosa are seldomly detected. Integration of virus DNA into host chromosomes is considered an important driver of carcinogenesis and observed in 40 up to 90 % of uterine cervical SCC (UCSCC) and oropharyngeal SCC (OPSCC), dependent on the integration detection method used and HRHPV type. In OPSCC, > 90 % HPV-positive tumors are infected with HPV16. Ten up to 60 % of HPV-positive tumors thus contain extrachromosomal (episomal) virus. In this chapter, causes and consequences of HPV integration are summarized from the literature, with special focus on the site of HPV integration in the cellular genome, and its effect on expression of viral oncogenes (particularly E6 and E7), on human (tumor) gene expression and on deregulation of cell proliferation, apoptosis and cell signaling pathways. Also data on DNA methylation, viral load and clinical outcome in relation to HPV integration are provided.
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Affiliation(s)
- Ernst Jan M Speel
- Unit Molecular Oncopathology & Diagnostics, Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, P.O. Box 5800, 6202 AZ, Maastricht, The Netherlands.
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27
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Hong D, Liu J, Hu Y, Lu X, Li B, Li Y, Hu D, Lu W, Xie X, Cheng X. Viral E6 is overexpressed via high viral load in invasive cervical cancer with episomal HPV16. BMC Cancer 2017; 17:136. [PMID: 28202002 PMCID: PMC5311840 DOI: 10.1186/s12885-017-3124-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 02/08/2017] [Indexed: 11/18/2022] Open
Abstract
Background The integration of HR-HPV genome into host DNA is regarded as a key step for the development of cervical cancer. However, HR-HPV genome indeed exists as episome except for integrant. It may be alternative mechanisms in episome-associated carcinogenesis, although, by which HPV 16 episome induces cervical carcinogenesis is unclear now. Methods Ninety-three invasive cervical cancer tissues with HPV16 positive were collected. Viral physical status was calculated from comparing E2 to E6-copies and detection of viral load was made with realtime-PCR using copy numbers of E6. HPV16 E6 mRNA transcript levels were measured by realtime-PCR. The methylation frequency of HPV16 promoter was detected by PCR and pyrosequencing. Results In 93 samples, 21.5% (20/93) presented purely integrated viral genome, 53.8% (50/93) mixed viral genome, and 24.7% (23/93) purely episomal viral genome. Mean E6 expression in samples with purely episomal viral genomes was 7.13-fold higher than that with purely integrated viral genomes. Meanwhile, viral load in samples with purely episomal viral genomes was 4.53-fold higher than that with purely integrated viral genomes. E6 mRNA expression increased with the viral load in purely episomal cases. There were no differences of mean methylation frequency between purely episomal and integrated virus and among five CpG positions of HPV16 promoter for all samples. And there also was no correlation between E6 mRNA expression and methylation of HPV16 promoter among all samples with purely HPV16 episomal virus. Conclusions HPV16 with the purely episomal viral genomes exists in a definite proportion of invasive cervical cancer, and episomal HPV16 also overexpresses E6 mRNA, probably through a high level of viral load.
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Affiliation(s)
- Die Hong
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Jia Liu
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Ying Hu
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Xiaonan Lu
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Baohua Li
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Yang Li
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Dongxiao Hu
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Weiguo Lu
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Xing Xie
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China
| | - Xiaodong Cheng
- Department of Gynecologic Oncology, Women's Hospital, School of Medicine, Women's Reproductive Health Laboratory of Zhejiang Province, Zhejiang University, Xueshi Rd 1#, Hangzhou, 310006, China.
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28
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Dvoryaninova OY, Nikitina EG, Bychkov VA, Litviakov NV. Genetic aspects of HPV infection detection in tumor and adjacent tissues of patients with laryngeal squamous cell carcinoma. Vopr Virusol 2016; 61:275-279. [PMID: 36494987 DOI: 10.18821/0507-4088-2016-61-6-275-279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Indexed: 06/17/2023]
Abstract
The article describes methods for the human papillomavirus (HPV) detection in tumor and adjacent (morphologically intact) tissues of patients with laryngeal squamous cell carcinoma (LSSC) in terms of viral pathogenesis. Comparative evaluation of the principles and techniques for HPV detection was performed. Advantages and disadvantages of the HPV detection methods are described. Approaches for DNA and HPV oncoproteins E6-E7 identification are substantiated. The results of our research into the qualitative and quantitative detection of HPV in the tumor and adjacent tissues of patients with Lssc are described. The research was conducted using commercial test systems Amplisens HPV HR screen-titre-FL and Amplisens HPV HR genotype-FL. Based on these results we developed the algorithm of HPV detection in samples of tumor tissue of patients with Lssc. The need for typing HPV-positive tissue samples with low concentration of HPV DNA was discussed.
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Affiliation(s)
| | - E G Nikitina
- Tomsk Cancer Research Institute
- National Research Tomsk State University
| | | | - N V Litviakov
- Tomsk Cancer Research Institute
- National Research Tomsk State University
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29
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Abstract
A significantly increasing proportion of oropharyngeal head and neck carcinomas (OSCC) in North America and Europe are associated with human papillomavirus (HPV) infections. HPV-related OSCC is regarded as a distinct tumor type with regard to its cellular, biologic, and clinical characteristics. Patients with HPV-related OSCC have significantly better local control, but higher rates of regional lymph node and distant metastases as compared to patients with HPV-negative OSCC. Classical molecular genetic investigations demonstrated specific chromosomal aberration signatures in HPV-related OSCC, and recent developments in next generation sequencing (NGS) technology have rendered possible the sequencing of entire genomes, and thus detection of specific mutations, in just a few days. Initial data from The Cancer Genome Atlas (TCGA) project obtained by using genome-wide high throughput methods have confirmed that HPV-related OSCC contain fewer, albeit more specific mutations than HPV-negative tumors. Additionally, these data revealed the presence of specific-potentially therapeutically targetable-activating driver mutations in subgroups of HPV-positive OSCC, some of which have a prognostic impact. Specific targeted NGS technologies provide new possibilities for identification of diagnostic, prognostic, and predictive biomarkers and the development of personalized cancer treatment. Patients with HPV-positive tumors are likely to profit from these developments in the future, since the genetic alterations are relatively homogenous and frequently lead to signal pathway activation. There is an urgent need for network research activities to carry out the necessary basic research in prospective cohort studies.
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30
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Dürst M, Hoyer H, Altgassen C, Greinke C, Häfner N, Fishta A, Gajda M, Mahnert U, Hillemanns P, Dimpfl T, Lenhard M, Petry KU, Runnebaum IB, Schneider A. Prognostic value of HPV-mRNA in sentinel lymph nodes of cervical cancer patients with pN0-status. Oncotarget 2016; 6:23015-25. [PMID: 26008982 PMCID: PMC4673218 DOI: 10.18632/oncotarget.4132] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 04/20/2015] [Indexed: 02/06/2023] Open
Abstract
Up to 15% of patients with cervical cancer and pN0-status develop recurrent-disease. This may be due to occult metastatic spread of tumor cells. We evaluated the use of human-papillomavirus-(HPV)-mRNA as a molecular marker for disseminated tumor cells to predict the risk of recurrence. For this prospective, multi-center prognostic study, 189 patients free of lymphnode metastases by conventional histopathology could be analyzed. All patients underwent complete lymphadenectomy. Of each sentinel node (SLN) a biopsy was taken for the detection of HPV-E6-E7-mRNA. Median follow-up time after surgery was 8.1 years. HPV-mRNA could be detected in SLN of 52 patients (27.5%). Recurrence was observed in 22 patients. Recurrence-free-survival was significantly longer for patients with HPV-negative SLN (log rank p = 0.002). By Cox regression analysis the hazard ratio (95%CI) for disease-recurrence was 3.8 (1.5 - 9.3, p = 0.004) for HPV-mRNA-positive compared to HPV-mRNA-negative patients. After adjustment for tumor size as the most influential covariate the HR was still 2.8 (1.1 - 7.0, p = 0.030). In patients with cervical cancer and tumor-free lymph nodes by conventional histopathology HPV-mRNA-positive SLN were of prognostic value independent of tumor size. Particularly, patients with tumors larger than 20mm diameter could possibly benefit from further risk stratification using HPV-mRNA as a molecular marker.
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Affiliation(s)
- Matthias Dürst
- Department of Gynecology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Heike Hoyer
- Institute of Medical Statistics, Information Sciences and Documentation, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Christoph Altgassen
- Department of Gynecology and Obstetrics, Universitätsklinikum Schleswig-Holstein, Lübeck, Germany
| | - Christiane Greinke
- Department of Gynecology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Norman Häfner
- Department of Gynecology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Alba Fishta
- Department of Gynecology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Mieczyslaw Gajda
- Institute of Pathology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Ute Mahnert
- Department of Gynecology and Obstetrics, Helios Klinikum Erfurt GmbH, Erfurt, Germany
| | - Peter Hillemanns
- Department of Gynecology and Obstetrics, Medizinische Hochschule Hannover, Hannover, Germany
| | - Thomas Dimpfl
- Department of Gynecology and Obstetrics, Klinikum Kassel GmbH, Kassel, Germany
| | - Miriam Lenhard
- Department of Gynecology and Obstetrics, Ludwig-Maximilians-University Munich, Munich, Germany
| | - K Ulrich Petry
- Department of Gynecology and Obstetrics, Klinikum Wolfsburg, Wolfsburg, Germany
| | - Ingo B Runnebaum
- Department of Gynecology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Achim Schneider
- Institute for Cytology and Dysplasia, Fürstenbergkarree, Berlin, Germany
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Skeate JG, Woodham AW, Einstein MH, Da Silva DM, Kast WM. Current therapeutic vaccination and immunotherapy strategies for HPV-related diseases. Hum Vaccin Immunother 2016; 12:1418-29. [PMID: 26835746 DOI: 10.1080/21645515.2015.1136039] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Carcinomas of the anogenital tract, in particular cervical cancer, remains one of the most common cancers in women, and represent the most frequent gynecological malignancies and the fourth leading cause of cancer death in women worldwide. Human papillomavirus (HPV)-induced lesions are immunologically distinct in that they express viral antigens, which are necessary to maintain the cancerous phenotype. The causal relationship between HPV infection and anogenital cancer has prompted substantial interest in the development of therapeutic vaccines against high-risk HPV types targeting the viral oncoproteins E6 and E7. This review will focus on the most recent clinical trials for immunotherapies for mucosal HPV-induced lesions as well as emerging therapeutic strategies that have been tested in pre-clinical models for HPV-induced diseases. Progress in peptide- and protein-based vaccines, DNA-based vaccines, viral/bacterial vector-based vaccines, immune checkpoint inhibition, immune response modifiers, and adoptive cell therapy for HPV will be discussed.
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Affiliation(s)
- Joseph G Skeate
- a Department of Molecular Microbiology & Immunology , University of Southern California , Los Angeles , CA , USA
| | - Andrew W Woodham
- a Department of Molecular Microbiology & Immunology , University of Southern California , Los Angeles , CA , USA
| | - Mark H Einstein
- b Department of Obstetrics & Gynecology and Women's Health , Rutgers New Jersey Medical School , Newark , NJ , USA
| | - Diane M Da Silva
- c Department of Obstetrics & Gynecology , University of Southern California , Los Angeles , CA , USA.,d Norris Comprehensive Cancer Center, University of Southern California , Los Angeles , CA , USA
| | - W Martin Kast
- a Department of Molecular Microbiology & Immunology , University of Southern California , Los Angeles , CA , USA.,c Department of Obstetrics & Gynecology , University of Southern California , Los Angeles , CA , USA.,d Norris Comprehensive Cancer Center, University of Southern California , Los Angeles , CA , USA
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Alvarez RD, Huh WK, Bae S, Lamb LS, Conner MG, Boyer J, Wang C, Hung CF, Sauter E, Paradis M, Adams EA, Hester S, Jackson BE, Wu TC, Trimble CL. A pilot study of pNGVL4a-CRT/E7(detox) for the treatment of patients with HPV16+ cervical intraepithelial neoplasia 2/3 (CIN2/3). Gynecol Oncol 2015; 140:245-52. [PMID: 26616223 DOI: 10.1016/j.ygyno.2015.11.026] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/19/2015] [Accepted: 11/22/2015] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the safety, efficacy, and immunogenicity of a plasmid vaccine, pNGVL4a-CRT-E7(detox), administered either intradermally, intramuscularly, or directly into the cervical lesion, in patients with HPV16-associated CIN2/3. METHODS Eligible patients with HPV16(+) CIN2/3 were enrolled in treatment cohorts evaluating pNGVL4a-CRT-E7(detox), administered by either particle-mediated epidermal delivery (PMED), intramuscular injection (IM), or cervical intralesional injection, at study weeks 0, 4, and 8. Patients were monitored for local injection site and systemic toxicity. A standard therapeutic resection was performed at week 15. The primary endpoints were safety and tolerability. Secondary endpoints included histologic regression and change in cervical HPV viral load. Exploratory endpoints included immune responses in the blood and in the target tissue. RESULTS Thirty-two patients with HPV16(+) CIN2/3 were enrolled onto the treatment phase of the study, and were vaccinated. Twenty-two of 32 patients (69%) experienced vaccine-specific related adverse events. The most frequent vaccine-related events were constitutional and local injection site in nature, and were grade 1 or less in severity. Histologic regression to CIN 1 or less occurred in 8 of 27 (30%) patients who received all vaccinations and underwent LEEP. In subject-matched comparisons, intraepithelial CD8+ T cell infiltrates increased after vaccination in subjects in the intralesional administration cohort. CONCLUSION pNGVL4a-CRT-E7(detox) was well-tolerated, elicited the most robust immune response when administered intralesionally, and demonstrated preliminary evidence of potential clinical efficacy.
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Affiliation(s)
| | - Warner K Huh
- University of Alabama at Birmingham, United States
| | - Sejong Bae
- University of Alabama at Birmingham, United States
| | | | | | - Jean Boyer
- University of Pennsylvania, United States
| | - Chenguang Wang
- Johns Hopkins University School of Medicine, United States
| | - Chien-Fu Hung
- Johns Hopkins University School of Medicine, United States
| | | | | | - Emily A Adams
- Johns Hopkins University School of Medicine, United States
| | | | | | - T C Wu
- Johns Hopkins University School of Medicine, United States
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33
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Doorbar J, Egawa N, Griffin H, Kranjec C, Murakami I. Human papillomavirus molecular biology and disease association. Rev Med Virol 2015; 25 Suppl 1:2-23. [PMID: 25752814 PMCID: PMC5024016 DOI: 10.1002/rmv.1822] [Citation(s) in RCA: 493] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/12/2014] [Accepted: 06/25/2014] [Indexed: 12/27/2022]
Abstract
Human papillomaviruses (HPVs) have evolved over millions of years to propagate themselves in a range of different animal species including humans. Viruses that have co‐evolved slowly in this way typically cause chronic inapparent infections, with virion production in the absence of apparent disease. This is the case for many Beta and Gamma HPV types. The Alpha papillomavirus types have however evolved immunoevasion strategies that allow them to cause persistent visible papillomas. These viruses activate the cell cycle as the infected epithelial cell differentiates in order to create a replication competent environment that allows viral genome amplification and packaging into infectious particles. This is mediated by the viral E6, E7, and E5 proteins. High‐risk E6 and E7 proteins differ from their low‐risk counterparts however in being able to drive cell cycle entry in the upper epithelial layers and also to stimulate cell proliferation in the basal and parabasal layers. Deregulated expression of these cell cycle regulators underlies neoplasia and the eventual progression to cancer in individuals who cannot resolve high‐risk HPV infection. Most work to date has focused on the study of high‐risk HPV types such as HPV 16 and 18, which has led to an understanding of the molecular pathways subverted by these viruses. Such approaches will lead to the development of better strategies for disease treatment, including targeted antivirals and immunotherapeutics. Priorities are now focused toward understanding HPV neoplasias at sites other than the cervix (e.g. tonsils, other transformation zones) and toward understanding the mechanisms by which low‐risk HPV types can sometimes give rise to papillomatosis and under certain situations even cancers. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- John Doorbar
- Department of Pathology, University of Cambridge, Cambridge, UK
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34
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Vojtechova Z, Sabol I, Salakova M, Turek L, Grega M, Smahelova J, Vencalek O, Lukesova E, Klozar J, Tachezy R. Analysis of the integration of human papillomaviruses in head and neck tumours in relation to patients' prognosis. Int J Cancer 2015; 138:386-95. [PMID: 26239888 DOI: 10.1002/ijc.29712] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 07/22/2015] [Indexed: 11/11/2022]
Abstract
Integration, which leads to the disruption of the circular HPV genome, is considered as a critical, albeit not obligatory, step in carcinogenic progression. Although cervical carcinomas with extrachromosomal HPV plasmid genomes have been described, the virus is integrated in 70% of HPV16-positive cervical tumours. Limited information is available about HPV integration in head and neck tumours (HNC). In this study, we have characterised the physical status of HPV in a set of tonsillar tumour samples using different methods--the mapping of E2 integration breakpoint at the mRNA level, the 3' RACE based Amplification of Papillomavirus Oncogene Transcripts (APOT) assay and Southern blot. Furthermore, the impact of HPV integration on patients' prognosis has been evaluated in a larger set of 186 patients with head and neck cancer. Based on the analysis of E2 mRNA, HPV was integrated in the host genome in 43% of the HPV-positive samples. Extrachromosomal or mixed form was present in 57%. In fresh frozen samples, the APOT and E2 mapping results were in agreement. The results were confirmed using Southern blotting. Furthermore, the type and exact site of integration were determined. The survival analysis of 186 patients revealed HPV positivity, tumour size and lymph node positivity as factors that influence disease specific survival. However, no statistically significant difference was found in disease specific survival between patients with HPV-positive integrated vs. extrachromosomal/mixed forms of the virus.
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Affiliation(s)
- Zuzana Vojtechova
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Department of Genetics and Microbiology, Faculty of Science, Charles University in Prague, Czech Republic
| | - Ivan Sabol
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Martina Salakova
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Lubomir Turek
- Veterans Affairs Healthcare System and Department of Pathology, University of Iowa, Iowa City, IA
| | - Marek Grega
- Department of Pathology and Molecular Medicine, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jana Smahelova
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Ondrej Vencalek
- Department of Mathematical Analysis and Applications of Mathematics, Faculty of Science of the Palacky University in Olomouc, Czech Republic
| | - Eva Lukesova
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Department of Otorhinolaryngology and Head and Neck Surgery, 1st Faculty of Medicine, Charles University in Prague, Motol University Hospital, Prague, Czech Republic
| | - Jan Klozar
- Department of Otorhinolaryngology and Head and Neck Surgery, 1st Faculty of Medicine, Charles University in Prague, Motol University Hospital, Prague, Czech Republic
| | - Ruth Tachezy
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Department of Genetics and Microbiology, Faculty of Science, Charles University in Prague, Czech Republic
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Guo H, Zhou X, Lu Y, Xie L, Chen Q, Keller ET, Liu Q, Zhou Q, Zhang J. Translational progress on tumor biomarkers. Thorac Cancer 2015; 6:665-71. [PMID: 26557902 PMCID: PMC4632916 DOI: 10.1111/1759-7714.12294] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/15/2015] [Indexed: 12/30/2022] Open
Abstract
There is an urgent need to apply basic research achievements to the clinic. In particular, mechanistic studies should be developed by bench researchers, depending upon clinical demands, in order to improve the survival and quality of life of cancer patients. To date, translational medicine has been addressed in cancer biology, particularly in the identification and characterization of novel tumor biomarkers. This review focuses on the recent achievements and clinical application prospects in tumor biomarkers based on translational medicine.
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Affiliation(s)
- Hongwei Guo
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education Nanning, China ; Center for Translational Medicine, Guangxi Medical University Nanning, China
| | - Xiaolin Zhou
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education Nanning, China ; Center for Translational Medicine, Guangxi Medical University Nanning, China
| | - Yi Lu
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education Nanning, China ; Center for Translational Medicine, Guangxi Medical University Nanning, China
| | - Liye Xie
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education Nanning, China ; Center for Translational Medicine, Guangxi Medical University Nanning, China
| | - Qian Chen
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education Nanning, China ; Center for Translational Medicine, Guangxi Medical University Nanning, China
| | - Evan T Keller
- Department of Urology and Pathology, School of Medicine, University of Michigan Ann Arbor, Michigan, USA
| | - Qian Liu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China
| | - Qinghua Zhou
- Lung Cancer Center, Huaxi Hospital, Sichuan University Chengdu, China
| | - Jian Zhang
- Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education Nanning, China ; Center for Translational Medicine, Guangxi Medical University Nanning, China ; Department of Urology and Pathology, School of Medicine, University of Michigan Ann Arbor, Michigan, USA
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Probst-Hunczek S, Jäger G, Schneider M, Notz E, Stubenrauch F, Iftner T. RNA sequencing analysis identifies novel spliced transcripts but does not indicate quantitative or qualitative changes of viral transcripts during progression of cottontail rabbit papillomavirus-induced tumours. J Gen Virol 2015; 96:3083-3089. [PMID: 26297146 DOI: 10.1099/jgv.0.000239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Persistent infections with high-risk human papillomaviruses (HPVs) can result in the development of cancer of the cervix uteri and other malignancies. The underlying molecular mechanisms leading to the progression of HPV-induced lesions are, however, not well understood. Cottontail rabbit papillomavirus (CRPV) induces papillomas in domestic rabbits which progress at a very high rate to cancer. Using this model, we compared the transcriptional patterns of CRPV in papillomas and carcinomas by RNA sequencing (RNA-seq). The most abundant transcripts can encode E7, short E6 and E1^E4, followed by full-length E6, E2, E1 and E9^E2C. In addition, we identified two rare, novel splice junctions 7810/3714 and 1751/3065 in both papillomas and carcinomas which have been described for other papillomaviruses. Neither RNA-seq nor quantitative real-time PCR-based assays identified qualitative or quantitative changes of viral transcription between papillomas and carcinomas. In summary, our analyses confirmed that papillomaviruses have highly similar transcriptional patterns, but they do not suggest that changes in these patterns contribute to the progression of CRPV-induced tumours.
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Affiliation(s)
- Sonja Probst-Hunczek
- Division of Experimental Virology, Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Strasse 6, Tübingen 72076, Germany
| | - Günter Jäger
- Centre for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen 72070, Germany.,Department of Medical Genetics, University Hospital Tübingen, Calwerstrasse 7, Tübingen 72076, Germany
| | - Markus Schneider
- Division of Experimental Virology, Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Strasse 6, Tübingen 72076, Germany
| | - Ekaterina Notz
- Division of Experimental Virology, Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Strasse 6, Tübingen 72076, Germany
| | - Frank Stubenrauch
- Division of Experimental Virology, Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Strasse 6, Tübingen 72076, Germany
| | - Thomas Iftner
- Division of Experimental Virology, Institute of Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Elfriede-Aulhorn-Strasse 6, Tübingen 72076, Germany
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Stratification of HPV-induced cervical pathology using the virally encoded molecular marker E4 in combination with p16 or MCM. Mod Pathol 2015; 28:977-93. [PMID: 25953390 PMCID: PMC4489599 DOI: 10.1038/modpathol.2015.52] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 03/05/2015] [Indexed: 01/07/2023]
Abstract
High-risk human papillomavirus (HPV) types cause cervical lesions of varying severity, ranging from transient productive infections to high-grade neoplasia. Disease stratification requires the examination of lesional pathology, and possibly also the detection of biomarkers. P16(INK4a) and MCM are established surrogates of high-risk HPV E6/E7 activity, and can be extensively expressed in high-grade lesions. Here we have combined these two cellular biomarkers with detection of the abundant HPV-encoded E4 protein in order to identify both productive and transforming lesions. This approach has allowed us to distinguish true papillomavirus infections from similar pathologies, and has allowed us to divide the heterogeneous CIN2 category into those that are CIN1-like and express E4, and those that more closely resemble nonproductive CIN3. To achieve this, 530 lesional areas were evaluated according to standard pathology criteria and by using a multiple staining approach that allows us to superimpose biomarker patterns either singly or in combination onto an annotated hematoxylin and eosin (H&E) image. Conventional grading of neoplasia was established by review panel, and compared directly with the composite molecular pathology visualized on the same tissue section. The detection of E4 coincided with the onset of vacuolation, becoming abundant in koilocytes as the MCM marker declined and cells lost their defined nuclear margins as visualized by standard H&E staining. Of the dual marker approaches, p16(INK4a) and E4 appeared most promising, with E4 generally identifying areas of low-grade disease even when p16(INK4a) was present. Extensive p16(INK4a) expression usually coincided with an absence of E4 expression or its focal retention in sporadic cells within the lesion. Our results suggest that a straightforward molecular evaluation of HPV life-cycle deregulation in cervical neoplasia may help improve disease stratification, and that this can be achieved using complementary molecular biomarker pairs such as MCM/E4 or, more promisingly, p16(INK4a)/E4 as an adjunct to conventional pathology.
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Christiansen IK, Sandve GK, Schmitz M, Dürst M, Hovig E. Transcriptionally active regions are the preferred targets for chromosomal HPV integration in cervical carcinogenesis. PLoS One 2015; 10:e0119566. [PMID: 25793388 PMCID: PMC4368827 DOI: 10.1371/journal.pone.0119566] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/15/2015] [Indexed: 01/23/2023] Open
Abstract
Integration of human papillomavirus (HPV) into the host genome is regarded as a determining event in cervical carcinogenesis. However, the exact mechanism for integration, and the role of integration in stimulating cancer progression, is not fully characterized. Although integration sites are reported to appear randomly distributed over all chromosomes, fragile sites, translocation break points and transcriptionally active regions have all been suggested as being preferred sites for integration. In addition, more recent studies have reported integration events occurring within or surrounding essential cancer-related genes, raising the question whether these may reflect key events in the molecular genesis of HPV induced carcinomas. In a search for possible common denominators of the integration sites, we utilized the chromosomal coordinates of 121 viral-cellular fusion transcripts, and examined for statistical overrepresentation of integration sites with various features of ENCODE chromatin information data, using the Genomic HyperBrowser. We find that integration sites coincide with DNA that is transcriptionally active in mucosal epithelium, as judged by the relationship of integration sites to DNase hypersensitivity and H3K4me3 methylation data. Finding an association between integration and transcription is highly informative with regard to the spatio-temporal characteristics of the integration process. These results suggest that integration is an early event in carcinogenesis, more than a late product of chromosomal instability. If the viral integrations were more likely to occur in destabilized regions of the DNA, a completely random distribution of the integration sites would be expected. As a by-product of integration in actively transcribing DNA, a tendency of integration in or close to genes is likely to be observed. This increases the possibility of viral signals to modulate the expression of these genes, potentially contributing to the progression towards cancer.
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Affiliation(s)
- Irene Kraus Christiansen
- Department of Microbiology and Infection Control, Akershus University Hospital, Lørenskog, Norway
| | | | - Martina Schmitz
- Department of Gynaecology, Jena University Hospital, Jena, Germany
| | - Matthias Dürst
- Department of Gynaecology, Jena University Hospital, Jena, Germany
| | - Eivind Hovig
- Department of Informatics, University of Oslo, Oslo, Norway
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway
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Meyer MF, Seuthe IMC, Drebber U, Siefer O, Kreppel M, Klein MO, Mikolajczak S, Klussmann JP, Preuss SF, Huebbers CU. Valosin-containing protein (VCP/p97)-expression correlates with prognosis of HPV- negative oropharyngeal squamous cell carcinoma (OSCC). PLoS One 2014; 9:e114170. [PMID: 25463965 PMCID: PMC4252085 DOI: 10.1371/journal.pone.0114170] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 11/04/2014] [Indexed: 12/27/2022] Open
Abstract
Valosin-containing protein (VCP)/p97 has been shown to be associated with antiapoptotic function via activation of the nuclear factor-B (NFB) signaling pathway and with metastasizing of tumors in several studies. VCP is located on chromosome 9p13-p12, a region often deleted in oropharyngeal squamous cell carcinoma (OSCC). The clinical significance of VCP expression in OSCC however remains unclear. In this study, expression of VCP was determined in 106 patients (77 male (71.3%) and 31 female (28.7%); age-range: 34–79 years (mean age 57 years)) by immunohistochemistry and in a subset of 15 patients by quantitative PCR. HPV-DNA was detected by polymerase chain reaction and p16INK4a immunohistochemistry. The experimental findings were correlated with clinico-pathological data and survival parameters. 47.2% of all OSCC specimens were analyzed as negative or weak staining intensity for VCP. 52.8% of all specimens showed a high staining intensity for VCP. 73.1% of all patients were tested HPV-negative, 26.9% were HPV-positive. The 5-year disease-free and overall survival probabilities of all patients were 71.2% and 55.7%, respectively. No correlation could be found between HPV-status and VCP expression. VCP overexpression in HPV-negative patients was associated with significantly better 5-year disease-free survival (86.4% vs., 45.6%, p = 0.017). The level of VCP-intensity determined by immunohistochemistry could be an additional prognostic marker in HPV-negative OSCC. VCP expression seems not to correlate with the HPV-status.
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Affiliation(s)
- Moritz F. Meyer
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Cologne, Germany
- * E-mail:
| | - Inga M. C. Seuthe
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Cologne, Germany
| | - Uta Drebber
- Department of Pathology, University of Cologne, Cologne, Germany
| | - Oliver Siefer
- Jean-Uhmacher Institute, University of Cologne, Cologne, Germany
| | - Matthias Kreppel
- Department for Oral and Maxillofacial Plastic Surgery, University of Cologne, Cologne, Germany
| | - Marcus O. Klein
- Clinic for Oral and Maxillofacial Plastic Surgery, Dusseldorf, Germany
| | - Stefanie Mikolajczak
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Cologne, Germany
| | - Jens Peter Klussmann
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Giessen, Giessen, Germany
| | - Simon F. Preuss
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Cologne, Germany
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Chen Y, Williams V, Filippova M, Filippov V, Duerksen-Hughes P. Viral carcinogenesis: factors inducing DNA damage and virus integration. Cancers (Basel) 2014; 6:2155-86. [PMID: 25340830 PMCID: PMC4276961 DOI: 10.3390/cancers6042155] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/03/2014] [Accepted: 10/09/2014] [Indexed: 12/13/2022] Open
Abstract
Viruses are the causative agents of 10%-15% of human cancers worldwide. The most common outcome for virus-induced reprogramming is genomic instability, including accumulation of mutations, aberrations and DNA damage. Although each virus has its own specific mechanism for promoting carcinogenesis, the majority of DNA oncogenic viruses encode oncogenes that transform infected cells, frequently by targeting p53 and pRB. In addition, integration of viral DNA into the human genome can also play an important role in promoting tumor development for several viruses, including HBV and HPV. Because viral integration requires the breakage of both the viral and the host DNA, the integration rate is believed to be linked to the levels of DNA damage. DNA damage can be caused by both endogenous and exogenous factors, including inflammation induced by either the virus itself or by co-infections with other agents, environmental agents and other factors. Typically, cancer develops years to decades following the initial infection. A better understanding of virus-mediated carcinogenesis, the networking of pathways involved in transformation and the relevant risk factors, particularly in those cases where tumorigenesis proceeds by way of virus integration, will help to suggest prophylactic and therapeutic strategies to reduce the risk of virus-mediated cancer.
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Affiliation(s)
- Yan Chen
- Department of Basic Science, Loma Linda University, Loma Linda, CA 92354, USA.
| | - Vonetta Williams
- Department of Basic Science, Loma Linda University, Loma Linda, CA 92354, USA.
| | - Maria Filippova
- Department of Basic Science, Loma Linda University, Loma Linda, CA 92354, USA.
| | - Valery Filippov
- Department of Basic Science, Loma Linda University, Loma Linda, CA 92354, USA.
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Tornesello ML, Annunziata C, Buonaguro L, Losito S, Greggi S, Buonaguro FM. TP53 and PIK3CA gene mutations in adenocarcinoma, squamous cell carcinoma and high-grade intraepithelial neoplasia of the cervix. J Transl Med 2014; 12:255. [PMID: 25220666 PMCID: PMC4174264 DOI: 10.1186/s12967-014-0255-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 09/04/2014] [Indexed: 12/20/2022] Open
Abstract
Background Mutations in the tumor suppressor gene TP53 and proto-oncogene PIK3CA and alterations of p53 and PIK3CA AKT mTOR pathways are common events in several human cancers. We focused on the analysis of TP53 and PIK3CA gene variations in adenocarcinoma, squamous cell carcinoma as well as in intraepithelial neoplasia grade 3 of the cervix. Methods DNA samples from 28 cervical adenocarcinoma, 55 squamous cell carcinoma and 31 intraepithelial neoplasia grade 3 (CIN3), previously characterized in terms of human papillomavirus (HPV) prevalence and genotype distribution, were analyzed for TP53 and PIK3CA mutations in the exons 4–9 and exon 9, respectively. Results Single nucleotide substitutions in TP53 and PIK3CA genes were detected in 36% and 11% of adenocarcinoma, in 16% and in 5% of squamous cell carcinoma, and in 13% and none of CIN 3, respectively. Nucleotide changes in TP53 were significantly more frequent in adenocarcinoma cases than in squamous cell carcinoma and CIN3 (P = 0.035) and were independent from HPV infection status. Conclusions Mutations in the TP53 gene and to lesser extent in the PIK3CA gene seem more frequent in cervical adenocarcinoma than in squamous cell carcinoma and CIN3. Whether TP53 and PIK3CA gene mutations have an impact on prognosis and response to molecularly targeted therapies as well as in cytotoxic drugs in different cervical cancer histotypes needs to be analyzed in investigative clinical trials.
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Bryant D, Onions T, Raybould R, Jones S, Tristram A, Hibbitts S, Fiander A, Powell N. Increased methylation of Human Papillomavirus type 16 DNA correlates with viral integration in Vulval Intraepithelial Neoplasia. J Clin Virol 2014; 61:393-9. [PMID: 25218242 DOI: 10.1016/j.jcv.2014.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 07/25/2014] [Accepted: 08/08/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Methylation of HPV16 DNA is a promising biomarker for triage of HPV positive cervical screening samples but the biological basis for the association between HPV-associated neoplasia and increased methylation is unclear. OBJECTIVES To determine whether HPV16 DNA methylation was associated with viral integration, and investigate the relationships between viral DNA methylation, integration and gene expression. STUDY DESIGN HPV16 DNA methylation, integration and gene expression were assessed using pyrosequencing, ligation-mediated PCR and QPCR, in biopsies from 25 patients attending a specialist vulval neoplasia clinic and in short-term clonal cell lines derived from vulval and vaginal neoplasia. RESULTS Increased methylation of the HPV16 L1/L2 and E2 regions was associated with integration of viral DNA into the host genome. This relationship was observed both in vivo and in vitro. Increased methylation of E2 binding sites did not appear to be associated with greater expression of viral early genes. Expression of HPV E6 and E7 did not correlate with either integration state or increased L1/L2 methylation. CONCLUSIONS The data suggest that increased HPV DNA methylation may be partly attributable to viral integration, and provide a biological rationale for quantification of L1/L2 methylation in triage of HPV positive cervical screening samples.
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Affiliation(s)
- Dean Bryant
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Tiffany Onions
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Rachel Raybould
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Sadie Jones
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Amanda Tristram
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Samantha Hibbitts
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Alison Fiander
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Ned Powell
- HPV Research Group, Institute of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
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Scarpini CG, Groves IJ, Pett MR, Ward D, Coleman N. Virus transcript levels and cell growth rates after naturally occurring HPV16 integration events in basal cervical keratinocytes. J Pathol 2014; 233:281-93. [PMID: 24752734 PMCID: PMC4285939 DOI: 10.1002/path.4358] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/01/2014] [Accepted: 04/07/2014] [Indexed: 02/06/2023]
Abstract
Cervical carcinogenesis is characterized by a clonal selection process in which the
high-risk human papillomavirus (HRHPV) genome usually changes from the
extra-chromosomal (episomal) state seen in productive infections to DNA that is
integrated into host chromosomes. However, it is not clear whether all HRHPV
integration events provide cells with a selective growth advantage compared with the
episome-containing cells from which they originate. It is also unclear whether
selection of cells containing a particular integrant from a mixed population simply
reflects the highest levels of virus oncogene expression or has additional
determinants. These early events in cervical carcinogenesis cannot readily be
addressed by cross-sectional studies of clinical samples. We used the W12 model
system to generate a panel of cervical squamous cell clones that were derived from an
identical background under non-competitive conditions and differed only by the
genomic site of HPV16 integration. Compared with the ‘baseline’
episome-containing cells from which they were isolated, only 9/17 clones (53%)
showed significantly greater growth rates and only 7/17 (41%) showed
significantly greater expression of the major virus oncogenes E7/E6. There were
significant variations in levels of HPV16 transcription per DNA template, changes
that were associated with histone modifications in the integrated virus chromatin.
Cell growth rates showed only weak and non-significant associations with protein and
mRNA levels for E7, E6, and the mean E7/E6 values. We conclude that HPV16 integration
in basal cervical cells does not necessarily lead to increased levels of virus
oncogenes, or to a competitive growth advantage, when compared with the initiating
episome-containing cells.
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Abstract
UNLABELLED High-risk types of human papillomavirus (HPV) are the causative agents of virtually all cases of cervical cancer and a significant proportion of other anogenital cancers, as well as both oral and pharyngeal cancers. The high-risk types encode two viral oncogenes, E6 and E7, which work together to initiate cell transformation. Multiple steps involving the activities and interactions of both viral and cellular proteins are involved in the progression from HPV infection to cell transformation to cancer. The E6 oncoprotein is expressed as several isoforms: a full-length variant referred to as E6 and a few shorter isoforms collectively referred to as E6*. In this study, we found that expression of E6* increased the level of reactive oxygen species (ROS) in both HPV-positive and HPV-negative cells. This increased oxidative stress led to higher levels of DNA damage, as assessed by the comet assay, quantification of 8-oxoguanine, and poly(ADP-ribose) polymerase 1. The observed increase in ROS may be due to a decrease in cellular antioxidant activity, as we found that E6* expression also led to decreased expression of superoxide dismutase isoform 2 and glutathione peroxidase. These studies indicate that E6* may play an important role in virus-induced mutagenesis by increasing oxidative stress and DNA damage. IMPORTANCE Our findings demonstrate for the first time that an HPV gene product, E6*, can increase ROS levels in host cells. This ability may play a significant role both in the viral life cycle and in cancer development, because an increase in oxidative DNA damage may both facilitate HPV genome amplification and increase the probability of HPV16 DNA integration. Integration, in turn, is thought to be an important step in HPV-mediated carcinogenesis.
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45
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Shulzhenko N, Lyng H, Sanson GF, Morgun A. Ménage à trois: an evolutionary interplay between human papillomavirus, a tumor, and a woman. Trends Microbiol 2014; 22:345-53. [PMID: 24674660 DOI: 10.1016/j.tim.2014.02.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 02/21/2014] [Accepted: 02/21/2014] [Indexed: 01/02/2023]
Abstract
Cervical cancer is the third most common cancer in women with human papillomavirus (HPV) being a key etiologic factor of this devastating disease. In this article, we describe modern advances in the genomics and transcriptomics of cervical cancer that led to uncovering the key gene drivers. We also introduce, herein, a model of cervical carcinogenesis that explains how the interplay between virus, tumor, and woman results in the selection of clones that simultaneously harbor genomic amplifications for genes that drive cell cycle, antiviral response, and inhibit cell differentiation. The new model may help researchers understand the controversies in antiviral therapy and immunogenetics of this cancer and may provide a basis for future research directions in early diagnostics and personalization of therapy.
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Affiliation(s)
- Natalia Shulzhenko
- College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Heidi Lyng
- Department of Radiation Biology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Gerdine F Sanson
- Institute of Health Sciences, Federal University of Mato Grosso, Sinop, MT, Brazil
| | - Andrey Morgun
- College of Pharmacy, Oregon State University, Corvallis, OR, USA.
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Olthof NC, Speel EJM, Kolligs J, Haesevoets A, Henfling M, Ramaekers FCS, Preuss SF, Drebber U, Wieland U, Silling S, Lam WL, Vucic EA, Kremer B, Klussmann JP, Huebbers CU. Comprehensive analysis of HPV16 integration in OSCC reveals no significant impact of physical status on viral oncogene and virally disrupted human gene expression. PLoS One 2014; 9:e88718. [PMID: 24586376 PMCID: PMC3933331 DOI: 10.1371/journal.pone.0088718] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 01/10/2014] [Indexed: 12/21/2022] Open
Abstract
Infection with high-risk human papillomavirus (HPV) type 16 is an independent risk factor for the development of oropharyngeal squamous cell carcinomas (OSCC). However, it is unclear whether viral integration is an essential hallmark in the carcinogenic process of OSCC and whether HPV integration correlates with the level of viral gene transcription and influences the expression of disrupted host genes. We analyzed 75 patients with OSCC. HPV16-positivity was proven by p16INK4A immunohistochemistry, PCR and FISH. Viral integration was examined using DIPS- as well as APOT-PCR. Viral E2, E6 and E7 gene expression levels were quantified by quantitative reverse transcriptase (RT-q)PCR. Expression levels of 7 human genes disrupted by the virus were extracted from mRNA expression profiling data of 32 OSCCs. Viral copy numbers were assessed by qPCR in 73 tumors. We identified 37 HPV16-human fusion products indicating viral integration in 29 (39%) OSCC. In the remaining tumors (61%) only episome-derived PCR products were detected. When comparing OSCC with or without an integration-derived fusion product, we did not find significant differences in the mean RNA expression of viral genes E2, E6 and E7 or the viral copy numbers per cell, nor did the RNA expression of the HPV-disrupted genes differ from either group of OSCC. In conclusion, our data do not support the hypothesis that integration affects the levels of viral and/or HPV-disrupted human gene transcripts. Thus constitutive, rather than a high level, of expression of oncogene transcripts appears to be required in HPV-related OSCC.
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Affiliation(s)
- Nadine C. Olthof
- Department of Otorhinolaryngology and Head and Neck Surgery, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Ernst-Jan M. Speel
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
- Department of Pathology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Jutta Kolligs
- Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
| | - Annick Haesevoets
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Mieke Henfling
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Frans C. S. Ramaekers
- Department of Molecular Cell Biology, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Simon F. Preuss
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Cologne, Cologne, Germany
| | - Uta Drebber
- Institute for Pathology, University Hospital of Cologne, Cologne, Germany
| | - Ulrike Wieland
- Institute of Virology, National Reference Centre for Papilloma- and Polyomaviruses, University Hospital of Cologne, Cologne, Germany
| | - Steffi Silling
- Institute of Virology, National Reference Centre for Papilloma- and Polyomaviruses, University Hospital of Cologne, Cologne, Germany
| | - Wan L. Lam
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, Canada
| | - Emily A. Vucic
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, Canada
| | - Bernd Kremer
- Department of Otorhinolaryngology and Head and Neck Surgery, GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
| | - Jens-P. Klussmann
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Giessen, Giessen, Germany
| | - Christian U. Huebbers
- Jean-Uhrmacher-Institute for Otorhinolaryngological Research, University of Cologne, Cologne, Germany
- * e-mail:
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47
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Pfitzner C, Schröder I, Scheungraber C, Dogan A, Runnebaum IB, Dürst M, Häfner N. Digital-Direct-RT-PCR: a sensitive and specific method for quantification of CTC in patients with cervical carcinoma. Sci Rep 2014; 4:3970. [PMID: 24496006 PMCID: PMC3913920 DOI: 10.1038/srep03970] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 01/20/2014] [Indexed: 12/30/2022] Open
Abstract
The detection of circulating tumour cells (CTC) in cancer patients may be useful for therapy monitoring and prediction of relapse. A sensitive assay based on HPV-oncogene transcripts which are highly specific for cervical cancer cells was established. The Digital-Direct-RT-PCR (DD-RT-PCR) combines Ficoll-separation, ThinPrep-fixation and one-step RT-PCR in a low-throughput digital-PCR format enabling the direct analysis and detection of individual CTC without RNA isolation. Experimental samples demonstrated a sensitivity of one HPV-positive cell in 500,000 HPV-negative cells. Spike-in experiments with down to 5 HPV-positive cells per millilitre EDTA-blood resulted in concordant positive results by PCR and immunocytochemistry. Blood samples from 3 of 10 CxCa patients each contained a single HPV-oncogene transcript expressing CTC among 5 to 15*105 MNBC. Only 1 of 7 patients with local but 2 of 3 women with systemic disease had CTC. This highly sensitive DD-RT-PCR for the detection of CTC may also be applied to other tumour entities which express tumour-specific transcripts. Abbreviations: CTC – circulating tumour cells, CxCa – cervical cancer, DD-RT-PCR – Digital-Direct Reverse Transcriptase PCR, HPV – Human Papilloma Virus, MNBC – mononuclear blood cells, ICC – immunocytochemistry.
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Affiliation(s)
- Claudia Pfitzner
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
| | - Isabel Schröder
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
| | - Cornelia Scheungraber
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
| | - Askin Dogan
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
| | - Ingo Bernhard Runnebaum
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
| | - Matthias Dürst
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
| | - Norman Häfner
- Department for Gynaecology and Obstetrics, Jena University Hospital, Friedrich Schiller University, Germany
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48
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Kalantari M, Osann K, Calleja-Macias IE, Kim S, Yan B, Jordan S, Chase DM, Tewari KS, Bernard HU. Methylation of human papillomavirus 16, 18, 31, and 45 L2 and L1 genes and the cellular DAPK gene: Considerations for use as biomarkers of the progression of cervical neoplasia. Virology 2014; 448:314-21. [PMID: 24314662 PMCID: PMC4051423 DOI: 10.1016/j.virol.2013.10.032] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/08/2013] [Accepted: 10/22/2013] [Indexed: 01/01/2023]
Abstract
During progression of cervical cancer, human papillomavirus genomes and cellular tumor suppressor genes can become methylated. Toward a better understanding of these biomarkers, we studied 104 samples with HPV16, 18, 31, and 45 representing five pathological categories from asymptomatic infection to cancer. We grouped all samples by HPV type and pathology and measured the overall methylation of informative amplicons of HPV late genes and the cellular DAPK gene. Methylation of all four HPV types as well as of the DAPK gene is lowest in asymptomatic infection and increases successively in all four pathological categories during progression to cancer. 27 out of 28 cancer samples showed methylation both in the L2/L1 genes as well as in DAPK, but a much lower fraction in all other pathological categories. We discuss the problem to develop diagnostic tests based on complex methylation patterns that make it difficult to classify amplicons as "methylated" or "unmethylated".
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Affiliation(s)
- Mina Kalantari
- Department of Dermatology, University of California Irvine, Irvine, CA 92697, United States
| | - Kathryn Osann
- Department of Medicine, University of California Irvine, Irvine, CA 92697, United States
| | - Itzel E. Calleja-Macias
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA 92697, United States
| | - Seong Kim
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA 92697, United States
| | - Bing Yan
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA 92697, United States
| | - Sara Jordan
- Division of Gynecological Oncology, University of California Irvine, Irvine, CA 92697, United States
| | - Dana M. Chase
- Division of Gynecological Oncology, University of California Irvine, Irvine, CA 92697, United States
| | - Krishnansu S. Tewari
- Division of Gynecological Oncology, University of California Irvine, Irvine, CA 92697, United States
| | - Hans-Ulrich Bernard
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA 92697, United States
- Program in Public Health, University of California Irvine, Irvine, CA 92697, United States
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49
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de Freitas AC, Coimbra EC, Leitão MDCG. Molecular targets of HPV oncoproteins: potential biomarkers for cervical carcinogenesis. Biochim Biophys Acta Rev Cancer 2014; 1845:91-103. [PMID: 24388872 DOI: 10.1016/j.bbcan.2013.12.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 12/10/2013] [Accepted: 12/27/2013] [Indexed: 12/17/2022]
Abstract
Cervical cancer is the second most common cancer among women worldwide and is responsible for 275,000 deaths each year. Persistent infection with high-risk human papillomavirus (HR-HPV) is an essential factor for the development of cervical cancer. Although the process is not fully understood, molecular mechanisms caused by HPV infection are necessary for its development and reveal a large number of potential biomarkers for diagnosis and prognosis. These molecules are host genes and/or proteins, and cellular microRNAs involved in cell cycle regulation that result from disturbed expression of HR-HPV E5, E6 and E7 oncoproteins. One of the current challenges in medicine is to discover potent biomarkers that can correctly diagnose cervical premalignant lesions and standardize clinical management. Currently, studies are showing that some of these molecules are potential biomarkers of cervical carcinogenesis, and it is possible to carry out a more accurate diagnosis and provide more appropriate follow-up treatment for women with cervical dysplasia. In this paper, we review recent research studies on cell cycle molecules deregulated by HPV infections, as well as their potential use for cervical cancer screening.
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Affiliation(s)
- Antonio Carlos de Freitas
- Laboratory of Molecular Studies and Experimental Therapy, Department of Genetics, Center for Biological Sciences, Federal University of Pernambuco, Recife, Brazil.
| | - Eliane Campos Coimbra
- Laboratory of Molecular Studies and Experimental Therapy, Department of Genetics, Center for Biological Sciences, Federal University of Pernambuco, Recife, Brazil.
| | - Maria da Conceição Gomes Leitão
- Laboratory of Molecular Studies and Experimental Therapy, Department of Genetics, Center for Biological Sciences, Federal University of Pernambuco, Recife, Brazil.
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50
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The small splice variant of HPV16 E6, E6, reduces tumor formation in cervical carcinoma xenografts. Virology 2014; 450-451:153-164. [PMID: 24503078 DOI: 10.1016/j.virol.2013.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 09/20/2013] [Accepted: 12/10/2013] [Indexed: 11/22/2022]
Abstract
High-risk types of human papillomavirus (HPV) cause nearly all cases of cervical cancer. The E6 oncoprotein is produced as a full-length variant (E6) as well as several shorter isoforms (E6). E6 inhibits certain oncogenic activities of E6, suggesting that it might play an anti-oncogenic role in vivo. To test this, we created E6-expressing SiHa (HPV(+)) and C33A (HPV(-)) cells, then examined the ability of both the parental and E6-expressing cells to form tumors in nude mice. We found that over-expression of E6 indeed decreased the growth of tumors derived from both SiHa and C33A cells, with the reduction greatest in tumors derived from E6-expressing SiHa cells. These findings point to multiple anti-oncogenic characteristics of E6, some of which likely involve down-regulation of the full-length isoform, and others that are independent of HPV. These data represent the first demonstration of biologically-relevant E6 activities distinct from those of the full-length isoform in vivo.
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