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Tumban E. A Current Update on Human Papillomavirus-Associated Head and Neck Cancers. Viruses 2019; 11:v11100922. [PMID: 31600915 PMCID: PMC6833051 DOI: 10.3390/v11100922] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/03/2019] [Accepted: 10/04/2019] [Indexed: 02/07/2023] Open
Abstract
Human papillomavirus (HPV) infection is the cause of a growing percentage of head and neck cancers (HNC); primarily, a subset of oral squamous cell carcinoma, oropharyngeal squamous cell carcinoma, and laryngeal squamous cell carcinoma. The majority of HPV-associated head and neck cancers (HPV + HNC) are caused by HPV16; additionally, co-factors such as smoking and immunosuppression contribute to the progression of HPV + HNC by interfering with tumor suppressor miRNA and impairing mediators of the immune system. This review summarizes current studies on HPV + HNC, ranging from potential modes of oral transmission of HPV (sexual, self-inoculation, vertical and horizontal transmissions), discrepancy in the distribution of HPV + HNC between anatomical sites in the head and neck region, and to studies showing that HPV vaccines have the potential to protect against oral HPV infection (especially against the HPV types included in the vaccines). The review concludes with a discussion of major challenges in the field and prospects for the future: challenges in diagnosing HPV + HNC at early stages of the disease, measures to reduce discrepancy in the prevalence of HPV + HNC cases between anatomical sites, and suggestions to assess whether fomites/breast milk can transmit HPV to the oral cavity.
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Affiliation(s)
- Ebenezer Tumban
- Department of Biological Sciences, Michigan Technological University, 1400 Townsend Dr, Houghton, MI 49931, USA.
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52
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Li P, Zhang Q, Tang H. INPP1 up-regulation by miR-27a contributes to the growth, migration and invasion of human cervical cancer. J Cell Mol Med 2019; 23:7709-7716. [PMID: 31557403 PMCID: PMC6815772 DOI: 10.1111/jcmm.14644] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 08/07/2019] [Accepted: 08/10/2019] [Indexed: 01/05/2023] Open
Abstract
Inositol polyphosphate‐1‐phosphatase (INPP1) is an enzyme that is responsible for glycolysis and lipid metabolism. Here, we discovered that INPP1 expression was up‐regulated in CC tissues compared to that in adjacent normal tissues by RT‐qPCR. Inositol polyphosphate‐1‐phosphatase overexpression promoted and INPP1 knockdown suppressed cell viability, cellular migration/invasion and EMT in CC cells. To explore the mechanism of dysregulation, INPP1 was predicted to be a target of miR‐27a, and a pmiRGLO dual‐luciferase reporter assay showed that miR‐27a bound to the 3′ UTR of INPP1. RT‐qPCR revealed that miR‐27a was also up‐regulated and had a positive correlation with INPP1 expression in CC tissues. Furthermore, shR‐INPP1 could favour the malignant phenotype reversion induced by miR‐27a, suggesting that miR‐27a up‐regulates INPP1 to promote tumorigenic activities. Altogether, our findings show that the up‐regulation of INPP1 by miR‐27a contributes to tumorigenic activities and may provide a potential biomarker for CC.
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Affiliation(s)
- Pu Li
- Tianjin Central Obstetrics and Gynecology Hospital, Reproductive Medical Center, Tianjin, China
| | - Qiaoge Zhang
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Hua Tang
- Tianjin Life Science Research Center and Department of Pathogen, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
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53
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Taghizadeh E, Jahangiri S, Rostami D, Taheri F, Renani PG, Taghizadeh H, Gheibi Hayat SM. Roles of E6 and E7 Human Papillomavirus Proteins in Molecular Pathogenesis of Cervical Cancer. Curr Protein Pept Sci 2019; 20:926-934. [DOI: 10.2174/1389203720666190618101441] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/11/2019] [Accepted: 05/26/2019] [Indexed: 01/07/2023]
Abstract
Human papillomavirus (HPV) cancers are expected to be major global health concerns in the upcoming decades. The growth of HPV-positive cancer cells depends on the consistent expression of oncoprotein which has been poorly taken into account in the cellular communication. Among them, E6/E7 oncoproteins are attractive therapeutic targets as their inhibition rapidly leads to the onset of aging in HPV-positive cancer cells. This cellular response is associated with the regeneration of p53, pRb anti-proliferative proteins as well as the mTOR signaling pathway; hence, the identification of involved and application of E6/E7 inhibitors can lead to new therapeutic strategies. In the present review, we focused on the pathogenicity of E6/E7 Proteins of human papillomavirus and their roles associated with the cervical cancer.
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Affiliation(s)
- Eskandar Taghizadeh
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Sepideh Jahangiri
- Genetics department, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Daryoush Rostami
- Department of School Allied, Zabol University of Medical Sciences, Zabol, Iran
| | - Forough Taheri
- Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | | | - Hassan Taghizadeh
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Seyed Mohammad Gheibi Hayat
- Department of Medical Genetics, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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54
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Kabekkodu SP, Shukla V, Varghese VK, Adiga D, Vethil Jishnu P, Chakrabarty S, Satyamoorthy K. Cluster miRNAs and cancer: Diagnostic, prognostic and therapeutic opportunities. WILEY INTERDISCIPLINARY REVIEWS-RNA 2019; 11:e1563. [PMID: 31436881 DOI: 10.1002/wrna.1563] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/05/2019] [Accepted: 07/25/2019] [Indexed: 02/06/2023]
Abstract
MiRNAs are class of noncoding RNA important for gene expression regulation in many plants, animals and viruses. MiRNA clusters contain a set of two or more miRNA encoding genes, transcribed together as polycistronic miRNAs. Currently, there are approximately 159 miRNA clusters reported in the human genome consisting of miRNAs ranging from two or more miRNA genes. A large proportion of clustered miRNAs resides in and around the fragile sites or cancer associated genomic hotspots and plays an important role in carcinogenesis. Altered expression of miRNA cluster can be pro-tumorigenic or anti-tumorigenic and can be targeted for clinical management of cancer. Over the past few years, manipulation of miRNA clusters expression is attempted for experimental purpose as well as for diagnostic, prognostic and therapeutic applications in cancer. Re-expression of miRNAs by epigenetic therapy, genome editing such as clustered regulatory interspaced short palindromic repeats (CRISPR) and miRNA mowers showed promising results in cancer therapy. In this review, we focused on the potential of miRNA clusters as a biomarker for diagnosis, prognosis, targeted therapy as well as strategies for modulating their expression in a therapeutic context. This article is categorized under: Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs RNA Processing > Processing of Small RNAs RNA in Disease and Development > RNA in Disease Regulatory RNAs/RNAi/Riboswitches > Biogenesis of Effector Small RNAs.
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Affiliation(s)
- Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vaibhav Shukla
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vinay Koshy Varghese
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Padacherri Vethil Jishnu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kapaettu Satyamoorthy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Park S, Kim J, Eom K, Oh S, Kim S, Kim G, Ahn S, Park KH, Chung D, Lee H. microRNA-944 overexpression is a biomarker for poor prognosis of advanced cervical cancer. BMC Cancer 2019; 19:419. [PMID: 31060525 PMCID: PMC6501303 DOI: 10.1186/s12885-019-5620-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/16/2019] [Indexed: 12/12/2022] Open
Abstract
Background One-third of cervical cancer patients are still diagnosed at advanced stages. The five-year survival rate is decreased in about 50% of advanced stage cervical cancer patients worldwide, and the clinical outcomes are remarkably varied and difficult to predict. One of the miRNAs known to be associated with cancer tumorigenesis is miR-944. However, the prognostic value of miR-944 in cervical cancer has not been fully investigated. The aim of this study was to analyze clinical significance and prognostic value of miR-944 in cervical cancer. Methods The expression levels of miR-944 were detected using quantitative reverse transcription polymerase chain reaction in five types of cervical cancer cell lines and 116 formalin-fixed paraffin-embedded (FFPE) cervical tissues. The association between the expression levels of miR-944 and prognostic value was analyzed using the Kaplan-Meier analysis and Cox proportional hazards model. Results The expression levels of miR-944 in cervical cancer tissues were significantly higher compared with those in normal tissues (P < 0.0001). Moreover, the expression levels of miR-944 in cervical cancer cell lines and FFPE tissues with human papillomavirus (HPV) infection were significantly higher compared to those without HPV infection (P < 0.01 and P = 0.02). High miR-944 expression was also markedly associated with bulky tumor size (P = 0.026), advanced International Federation of Gynecology and Obstetrics (FIGO) stage (P = 0.042), and lymph node metastasis (P = 0.030). In particular, high miR-944 expression group showed shorter overall survival than the low miR-944 expression group in the advanced FIGO stage (84.4% vs. 44.4%, HR = 4.0, and P = 0.01). Conclusions These results suggest that miR-944 may be used as a novel biomarker for improving prognosis and as a potential therapeutic target. Electronic supplementary material The online version of this article (10.1186/s12885-019-5620-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sunyoung Park
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Jungho Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Kiyoon Eom
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Sehee Oh
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Sunghyun Kim
- Department of Clinical Laboratory Science, College of Health Sciences, Catholic University of Pusan, Pusan, South Korea
| | - Geehyuk Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Sungwoo Ahn
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Kwang Hwa Park
- Department of Pathology, Yonsei University, Wonju College of Medicine, Wonju, South Korea
| | - Dawn Chung
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, 146-92 Dongok-dong, Gangnam-gu, Seoul, Republic of Korea.
| | - Hyeyoung Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, 1 Yonseidae-gil, Wonju-si, Gangwon-do, 26493, Republic of Korea.
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56
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Gong Y, Wan JH, Zou W, Lian GY, Qin JL, Wang QM. MiR-29a inhibits invasion and metastasis of cervical cancer via modulating methylation of tumor suppressor SOCS1. Future Oncol 2019; 15:1729-1744. [PMID: 31038361 DOI: 10.2217/fon-2018-0497] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Aims: To investigate roles of miR-29a-DNMT1-SOCS1 axis in cervical cancer invasion and migration. Materials & methods: The methylation level of SOCS1 was determined by methylation specific PCR. The cell apoptosis, proliferation, migration and invasion were examined by Annexin-V/PI staining, MTT and colony formation assays, plus scratch and transwell assays respectively. The expressions of epithelial-mesenchymal transition and NF-κB related proteins were determined by western blotting. Results: MiR-29a was downregulated, accompanied with DNMT1 upregulation and SOCS1 downregulation in cervical cancer tissues. MiR-29a suppressed DNMT1, inhibited SOCS1 promoter methylation and upregulated its expression. Moreover, miR-29a promoted cell apoptosis, suppressed proliferation, inhibited migration and invasion via inactivation of NF-κB signaling pathway in cervical cancer cells. Conclusion: MiR-29a-DNMT1-SOCS1 axis plays an important role on invasion and metastasis in cervical cancer via NF-κB signaling pathway.
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Affiliation(s)
- Yi Gong
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Jun-Hui Wan
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Wei Zou
- Department of Infectious Diseases, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Guang-Yu Lian
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Jun-Li Qin
- Department of Obstetrics & Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Qing-Ming Wang
- Department of Hematology, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
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57
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White EA. Manipulation of Epithelial Differentiation by HPV Oncoproteins. Viruses 2019; 11:v11040369. [PMID: 31013597 PMCID: PMC6549445 DOI: 10.3390/v11040369] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/18/2019] [Accepted: 04/20/2019] [Indexed: 02/06/2023] Open
Abstract
Papillomaviruses replicate and cause disease in stratified squamous epithelia. Epithelial differentiation is essential for the progression of papillomavirus replication, but differentiation is also impaired by papillomavirus-encoded proteins. The papillomavirus E6 and E7 oncoproteins partially inhibit and/or delay epithelial differentiation and some of the mechanisms by which they do so are beginning to be defined. This review will outline the key features of the relationship between HPV infection and differentiation and will summarize the data indicating that papillomaviruses alter epithelial differentiation. It will describe what is known so far and will highlight open questions about the differentiation-inhibitory mechanisms employed by the papillomaviruses.
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Affiliation(s)
- Elizabeth A White
- Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.
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58
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Mapekula L, Ramorola BR, Goolam Hoosen T, Mowla S. The interplay between viruses & host microRNAs in cancer - An emerging role for HIV in oncogenesis. Crit Rev Oncol Hematol 2019; 137:108-114. [PMID: 31014506 DOI: 10.1016/j.critrevonc.2019.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/16/2019] [Accepted: 02/17/2019] [Indexed: 12/12/2022] Open
Abstract
Human cancers attributed to viral infections represent a growing proportion of the global cancer burden, with these types of cancers being the leading cause of morbidity and mortality in some regions. The concept that viruses play a causal role in human cancers is not new, but the mechanism thereof, while well described for some viruses, still remains elusive and complex for others, especially in the case of HIV-associated B-cell derived cancers. In the last decade, compelling evidence has demonstrated that cellular microRNAs are deregulated in cancers, with an increasing number of studies identifying microRNAs as potential biomarkers for human cancer diagnosis, prognosis and therapeutic targets or tools. Recent research demonstrates that viruses and viral components manipulate host microRNA expressions to their advantage, and the emerging picture suggests that the virus/microRNA pathway interaction is defined by a plethora of complex mechanisms. In this review, we highlight the current knowledge on virus/microRNA pathway interactions in the context of cancer and provide new insights on HIV as an oncogenic virus.
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Affiliation(s)
- L Mapekula
- Division of Haematology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - B R Ramorola
- Division of Haematology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - T Goolam Hoosen
- Division of Haematology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - S Mowla
- Division of Haematology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa.
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59
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Sommerova L, Anton M, Bouchalova P, Jasickova H, Rak V, Jandakova E, Selingerova I, Bartosik M, Vojtesek B, Hrstka R. The role of miR-409-3p in regulation of HPV16/18-E6 mRNA in human cervical high-grade squamous intraepithelial lesions. Antiviral Res 2019; 163:185-192. [DOI: 10.1016/j.antiviral.2019.01.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 11/14/2018] [Accepted: 01/30/2019] [Indexed: 12/20/2022]
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60
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Albuquerque A, Fernandes M, Stirrup O, Teixeira AL, Santos J, Rodrigues M, Rios E, Macedo G, Medeiros R. Expression of microRNAs 16, 20a, 150 and 155 in anal squamous intraepithelial lesions from high-risk groups. Sci Rep 2019; 9:1523. [PMID: 30728437 PMCID: PMC6365520 DOI: 10.1038/s41598-018-38378-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/27/2018] [Indexed: 12/17/2022] Open
Abstract
Anal squamous intraepithelial lesions (ASIL) or anal intraepithelial neoplasia (AIN) are precancerous lesions. microRNAs (miRNAs) have been implicated in cervical carcinogenesis, but have never been assessed in anal precancerous lesions. Our aim was to evaluate the expression of miR-16, miR-20a, miR-150 and miR-155 in several grades of ASIL obtained from high-risk patients, submitted to anal cancer screening from July 2016 to January 2017. Lesions were classified according to the Lower Anogenital Squamous Terminology (LAST) in low-grade (LSIL) and high-grade squamous intraepithelial lesions (HSIL), and the AIN classification in AIN1, AIN2 and AIN3. A hundred and five biopsies were obtained from 60 patients. Ten samples were negative (9.5%), 63 were LSIL (60%) and 32 were HSIL (30.5%) according to the LAST. Twenty seven (26%) were negative for dysplasia, 46 were classified as AIN1 (44%), 14 as AIN2 (13%) and 18 as AIN3 (17%) according to the AIN classification. There was no statistically significant difference in the fold expression of miR-16, miR-20a, miR-150 and miR-155, according to either classification. Although non- significant, there was an increasing trend in the miR-155 fold expression from negative samples to HSIL, with the highest fold expression increase in both LSIL and HSIL compared to the other miRNAs.
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Affiliation(s)
- Andreia Albuquerque
- Faculty of Medicine of the University of Porto, Porto, Portugal. .,Gastroenterology Department, Centro Hospitalar São João, Porto, Portugal.
| | - Mara Fernandes
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto Research Center (CI-IPOP), Portuguese Oncology Institute, Porto, Portugal
| | - Oliver Stirrup
- Centre for Clinical Research in Infection and Sexual Heath, Institute for Global Health, University College London, London, UK
| | - Ana Luísa Teixeira
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto Research Center (CI-IPOP), Portuguese Oncology Institute, Porto, Portugal
| | - Joana Santos
- Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto Research Center (CI-IPOP), Portuguese Oncology Institute, Porto, Portugal
| | - Marta Rodrigues
- Department of Pathology, Centro Hospitalar São João, Porto, Portugal
| | - Elisabete Rios
- Faculty of Medicine of the University of Porto, Porto, Portugal.,Department of Pathology, Centro Hospitalar São João, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) and i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Guilherme Macedo
- Faculty of Medicine of the University of Porto, Porto, Portugal.,Gastroenterology Department, Centro Hospitalar São João, Porto, Portugal
| | - Rui Medeiros
- Faculty of Medicine of the University of Porto, Porto, Portugal.,Molecular Oncology and Viral Pathology Group, Portuguese Oncology Institute of Porto Research Center (CI-IPOP), Portuguese Oncology Institute, Porto, Portugal.,Research Department, Portuguese League Against Cancer, Porto, Portugal.,CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal
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Genome-Wide Profiling of Cervical RNA-Binding Proteins Identifies Human Papillomavirus Regulation of RNASEH2A Expression by Viral E7 and E2F1. mBio 2019; 10:mBio.02687-18. [PMID: 30696738 PMCID: PMC6355981 DOI: 10.1128/mbio.02687-18] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
High-risk HPV infections lead to development of cervical cancer. This study identified the differential expression of 16 novel genes (LY6K, FAM83A, CELSR3, ASF1B, IQGAP3, SEMA3F, CLDN10, MSX1, CXCL5, ASRGL1, ELAVL2, GRB7, KHSRP, NOVA1, PTBP1, and RNASEH2A) in HPV-infected cervical tissue samples and keratinocytes. Eight of these genes (CDKN2A, ELAVL2, GRB7, HSPB1, KHSRP, NOVA1, PTBP1, and RNASEH2A) encode RNA-binding proteins. Further studies indicated that both HPV16 and HPV18 infections lead to the aberrant expression of selected RBP-encoding genes. We found that viral E6 and E7 decrease NOVA1 expression but that E7 increases RNASEH2A expression via E2F1. The altered expression of these genes may be utilized as biomarkers for high-risk (HR)-HPV carcinogenesis and progression. RNA-binding proteins (RBPs) control mRNA processing, stability, transport, editing, and translation. We recently conducted transcriptome analyses comparing normal (i.e., healthy) cervical tissue samples with human papillomavirus (HPV)-positive cervical cancer tissue samples and identified 614 differentially expressed protein-coding transcripts which are enriched in cancer-related pathways and consist of 95 known RBPs. We verified the altered expression of 26 genes with a cohort of 72 cervical samples, including 24 normal cervical samples, 25 cervical intraepithelial neoplasia grade 2 (CIN2) and CIN3 samples, and 23 cervical cancer tissue samples. LY6K (lymphocyte antigen 6 complex locus K), FAM83A (family member with sequence similarity 83), CELSR3, ASF1B, IQGAP3, SEMA3F, CLDN10, MSX1, CXCL5, ASRGL1, ELAVL2, GRB7, KHSRP, NOVA1, PTBP1, and RNASEH2A were identified as novel candidate genes associated with cervical lesion progression and carcinogenesis. HPV16 or HPV18 infection was found to alter the expression of 8 RBP genes (CDKN2A, ELAVL2, GRB7, HSPB1, KHSRP, NOVA1, PTBP1, and RNASEH2A) in human vaginal and foreskin keratinocytes. Both viral E6 and E7 decreased NOVA1 expression, but only E7 increased the expression of RNASEH2A in an E2F1-dependent manner. Proliferating cell nuclear antigen (PCNA) directs RNASEH2 activity with respect to DNA replication by removing the RNA primers to promote Okazaki fragment maturation, and two factors are closely associated with neoplasia progression. Therefore, we predict that the induction of expression of RNASEH2A via viral E7 and E2F1 may promote DNA replication and cancer cell proliferation.
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Host derived exosomes-pathogens interactions: Potential functions of exosomes in pathogen infection. Biomed Pharmacother 2018; 108:1451-1459. [DOI: 10.1016/j.biopha.2018.09.174] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/29/2018] [Accepted: 09/30/2018] [Indexed: 01/22/2023] Open
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63
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Wongjampa W, Ekalaksananan T, Chopjitt P, Chuerduangphui J, Kleebkaow P, Patarapadungkit N, Pientong C. Suppression of miR-22, a tumor suppressor in cervical cancer, by human papillomavirus 16 E6 via a p53/miR-22/HDAC6 pathway. PLoS One 2018; 13:e0206644. [PMID: 30379969 PMCID: PMC6209303 DOI: 10.1371/journal.pone.0206644] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/16/2018] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that function to down-regulate gene expression involving in various cellular processes related to carcinogenesis. Recently, miR-22 was identified as a tumor-suppressing miRNA in many human cancers. However, the regulatory mechanism and the specific function of this miRNA in cervical cancer remain unclear. In the present study, we carried out gene transfection, western blot and quantitative RT-PCR to explore the regulatory mechanism and the functional role of miR-22 in cervical cancer. We verified that miR-22 was down-regulated in cervical cancer tissues and cervical cancer cell lines relative to matched non-tumor tissues and normal human cervical keratinocyte line (HCK1T). By contrast, histone deacetylase 6 (HDAC6) was inversely correlated with miR-22 in both cervical tissues and cancer cell lines. Mechanically, HDAC6 was down-regulated by miR-22 at the post-transcriptional level, via a specific target site within the 3’UTR, identified by a luciferase reporter assay. Moreover, we also showed that the correlation between miR-22 and HDAC6 expression was regulated by an E6/p53 pathway in HCK1Ts expressing HPV16 E6. For functional study, an ectopic expression of miR-22 could inhibit cell proliferation and migration, and could induce apoptosis of cervical cancer cell lines. These findings demonstrated that miR-22 was down-regulated in cervical cancer and inversely collated with its downstream target HDAC6. MiR-22 acts as tumor suppressor by inhibiting proliferation and migration, and by inducing apoptosis of cervical cancer cell lines by targeting the 3’UTR of HDAC6. This newly identified E6/p53/miR-22/HDAC6 regulatory network might be a candidate therapeutic target for cervical cancer.
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Affiliation(s)
- Weerayut Wongjampa
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Peechanika Chopjitt
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
- Faculty of Public Health, Kasetsart University Chalermphrakiat, Sakon Nakhon Campus, Sakon Nakhon, Thailand
| | - Jureeporn Chuerduangphui
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Pilaiwan Kleebkaow
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
- Department of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Natcha Patarapadungkit
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
- * E-mail:
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64
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Aghbari SM, Zayed SO, Shaker OG, Abushouk AI. Evaluating the role of tissue microRNA-27b as a diagnostic marker for oral lichen planus and possible correlation with CD8. J Oral Pathol Med 2018; 48:68-73. [PMID: 30276874 DOI: 10.1111/jop.12785] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 09/03/2018] [Accepted: 09/26/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND MicroRNA-27b (miR27b) is a small, non-coding RNA that is involved in physiological keratinocyte differentiation and regulating inflammatory processes. We performed this study to investigate the value of miR27b as a diagnostic marker for oral lichen planus (OLP) and the correlation between CD8 (cytotoxic T-cell marker) and miR27b tissue expression in OLP patients. METHODS Forty participants (including 20 OLP patients and 20 controls) underwent oral biopsy. The obtained specimens were examined by immunostaining and quantitative RT-PCR for CD8 and miR27b tissue expression, respectively. We used the Spearman rank correlation test to evaluate the correlation between both variables. RESULTS Our analysis showed that in comparison with healthy tissues, OLP tissue samples exhibited significantly higher CD8 levels (P < 0.01), as well as a significant downregulation of miR27b expression (P < 0.0001). Upon comparing different OLP subgroups, no significant difference was detected in terms of miR27b expression; however, the tissue levels of CD8 varied significantly (highest in the erosive subgroup and lowest in the papular/plaque/reticular subgroup). The Spearman rank analysis showed a negative correlation between tissue expression of miR27b and CD8; however, this was not statistically significant (P > 0.05). Further, the receiver operating characteristic curve of tissue miR27b as an OLP biomarker revealed 100% sensitivity and 65% specificity at cutoff value of 4.4. CONCLUSION This study demonstrated increased CD8 levels and downregulation of miR27b in OLP tissues, compared to healthy tissues. Moreover, it revealed the potential of miR27b as an OLP disease biomarker. The possible negative correlation between CD8 and miR27b tissue expression requires further investigation in larger studies.
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Affiliation(s)
| | | | - Olfat Gamil Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine Cairo University, Cairo, Egypt
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Peacock B, Rigby A, Bradford J, Pink R, Hunter K, Lambert D, Hunt S. Extracellular vesicle microRNA cargo is correlated with HPV status in oropharyngeal carcinoma. J Oral Pathol Med 2018; 47:954-963. [PMID: 30244508 DOI: 10.1111/jop.12781] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/28/2018] [Accepted: 09/18/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND The incidence of human papilloma virus positive (HPV+ ) oropharyngeal squamous cell carcinoma (OPSCC) has increased rapidly in recent decades. These tumours have a favourable outcome compared to HPV-negative (HPV- ) OPSCC. However, HPV+ tumours are more likely to metastasise to distant sites, suggesting a difference in how these tumour subtypes interact with the metastatic niche. Extracellular vesicles (EVs) have emerged as important players in cell-to-cell communication and are a potential source of biomarkers for cancer diagnosis. This study aims to characterise the microRNA cargo of small EVs released by HPV+ and HPV- OPSCC cell lines. METHODS Extracellular vesicles produced by HPV+ (SCC2 and SCC90) and HPV- (SCC72 an SCC89) OPSCC cells were characterised by tunable resistive pulse sensing (TRPS) and western blotting. RNA was extracted from EVs and analysed by small RNA sequencing. A bioinformatics approach was used to identify EV miRNA signatures associated with HPV status. RESULTS HPV- OPSCC cells produced more EVs than HPV+ OPSCC cells. EVs were positive for the common EV markers CD63, CD9 and TSG101. Unbiased hierarchical clustering analysis of EV miRNA cargo revealed that samples clustered based on HPV status. 14 miRNA were enriched in HPV+ cell-derived EVs, whereas 19 miRNA were enriched in EVs derived from HPV- cell lines. CONCLUSIONS Here, we identify EV miRNA signatures indicative of the HPV status of the parent cell. This may provide a platform from which to validate salivary or blood-based biomarkers with utility for early detection and stratifying risk in OPSCC patients.
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Affiliation(s)
- Ben Peacock
- The School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
| | - Alice Rigby
- The School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
| | - James Bradford
- Department of Oncology and Metabolism, Medical School, The University of Sheffield, Sheffield, UK.,Sheffield Institute for Nucleic Acids, University of Sheffield, Sheffield, UK
| | - Ryan Pink
- Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, UK
| | - Keith Hunter
- The School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
| | - Daniel Lambert
- The School of Clinical Dentistry, The University of Sheffield, Sheffield, UK.,Sheffield Institute for Nucleic Acids, University of Sheffield, Sheffield, UK
| | - Stuart Hunt
- The School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
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66
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Zheng SR, Zhang HR, Zhang ZF, Lai SY, Huang LJ, Liu J, Bai X, Ding K, Zhou JY. Human papillomavirus 16 E7 oncoprotein alters the expression profiles of circular RNAs in Caski cells. J Cancer 2018; 9:3755-3764. [PMID: 30405847 PMCID: PMC6216014 DOI: 10.7150/jca.24253] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/14/2018] [Indexed: 01/22/2023] Open
Abstract
Cervical cancer is one of the most common cancer in female worldwide. The expression of high-risk human papillomavirus E7 oncogene is necessary for the maintenance of malignant phenotypes and transformation. Accumulating studies of this protein has been explored in cervical cancer, however, there are fewer studies on how E7 expression affects the expression of global circular RNA. CircRNA, a promising biomarker and even therapeutic target, has become a star molecular in research after miRNA and long non-coding RNA. Our aim of this study was to investigate the global circRNA levels modulated by HPV E7 expression and identified the potential consequences for mechanism studies. Here we investigated the expression profiles of circRNAs by transfecting E7 siRNA in Caski cells with high-throughput microarray technology. In total, we identified 526 dysregulated circRNAs with fold change ≥2 or≤0.5, and p< 0.05. Among them, 352 were up-regulated and 174 were down-regulated. In addition, 8 selected circRNAs confirmed using qRT-PCR was in line with the results of microarray analysis. Furthermore, bioinformatic analyses indicated that differently expressed circRNAs might implicate in the mTOR signaling pathway, proline metabolism and glutathione metabolism. In conclusion, this study showed the expression profiles of circRNAs regulated by HPV16 E7 in cervical cancer cells and provides novel insights into the new potential candidates for future mechanism studies.
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Affiliation(s)
- Si-Rong Zheng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Han-Rong Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Zhen-Fei Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Shu-Yu Lai
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Li-Jun Huang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China.,The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Jie Liu
- Department of Gynaecology and Obstetrics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Xin Bai
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China.,The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Ke Ding
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China.,The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, P.R. China
| | - Jue-Yu Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P.R. China
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67
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Liu SS, Chan KKL, Chu DKH, Wei TN, Lau LSK, Ngu SF, Chu MMY, Tse KY, Ip PPC, Ng EKO, Cheung ANY, Ngan HYS. Oncogenic microRNA signature for early diagnosis of cervical intraepithelial neoplasia and cancer. Mol Oncol 2018; 12:2009-2022. [PMID: 30221475 PMCID: PMC6275249 DOI: 10.1002/1878-0261.12383] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 12/11/2022] Open
Abstract
Cervical cancer is one of the leading causes of cancer death in women globally, despite the widespread use of cytology/human papillomavirus (HPV) screening. In the present study, we aimed to identify the potential role of microRNA (miRNA) as a diagnostic biomarker in the detection of cervical pre‐malignant lesions and cancer. In total, we recruited 582 patients with cervical diseases and 145 control individuals. The expression levels of six miRNAs (miR‐20a, miR‐92a, miR‐141, miR‐183*, miR‐210 and miR‐944) were found to be significantly up‐regulated in cervical cancer and pre‐malignant lesions compared to normal cervical samples, indicating that they are oncogenic miRNAs. Receiver operating characteristic curve analysis showed that these six miRNAs can be used to distinguish patients with cervical pre‐malignant lesions or cancer from normal individuals and they also had a good predictive performance, particularly in cervical lesions. Combined use of these six miRNAs further enhanced the diagnostic accuracy over any single miRNA marker, with an area under the curve of 0.998, 0.996 and 0.959, a diagnostic sensitivity of 97.9%, 97.2% and 91.4%, and a specificity of 98.6%, 96.6% and 87.6% for low‐grade lesions, high‐grade lesions and cancer, respectively. This six oncogenic miRNA signature may be suitable for use as diagnostic marker for cervical pre‐malignant lesions and cancer in the near future.
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Affiliation(s)
- Stephanie S Liu
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Karen K L Chan
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Daniel K H Chu
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Tina N Wei
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Lesley S K Lau
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Siew F Ngu
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Mandy M Y Chu
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Ka Yu Tse
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
| | - Philip P C Ip
- Department of Pathology, LKS Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, SAR, China
| | - Enders K O Ng
- Pangenia Lifesciences Limited, Billion Centre, Hong Kong, SAR, China
| | - Annie N Y Cheung
- Department of Pathology, LKS Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, SAR, China
| | - Hextan Y S Ngan
- Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, SAR, China
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Wu J, Yang J, Ding J, Guo X, Zhu XQ, Zheng Y. Exosomes in virus-associated cancer. Cancer Lett 2018; 438:44-51. [PMID: 30219505 DOI: 10.1016/j.canlet.2018.09.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/30/2018] [Accepted: 09/10/2018] [Indexed: 12/13/2022]
Abstract
Exosomes are phospholipid bilayer membrane-enclosed vesicles in a size from 30 to 150 nm, carrying a variety of active components, such as proteins, mRNA and miRNAs, and are involved in intercellular communication. Exosomes are released by almost all living cells and detected in various biological fluids. Viruses especially oncogenic viruses have been reported to influence the formation of virus-associated cancer through reshaping the tumor microenvironment via exosomes. In this review, a role of exosomes released by oncogenic virus-infected cells in promoting or inhibiting cancer formation is outlined. Moreover, the prospects and challenges of exosome applications in cancer therapies are critically discussed.
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Affiliation(s)
- Jin'en Wu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, 730046, China
| | - Jing Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, 730046, China
| | - Juntao Ding
- College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Xiaola Guo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, 730046, China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, 730046, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, 225009, China
| | - Yadong Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, 730046, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, 225009, China.
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Liu X, Zhang Y, Wang S, Liu G, Ruan L. Loss of miR-143 and miR-145 in condyloma acuminatum promotes cellular proliferation and inhibits apoptosis by targeting NRAS. ROYAL SOCIETY OPEN SCIENCE 2018; 5:172376. [PMID: 30225000 PMCID: PMC6124073 DOI: 10.1098/rsos.172376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 08/03/2018] [Indexed: 05/08/2023]
Abstract
The expression profile of miRNAs and their function in condyloma acuminatum (CA) remains unknown. In this study, we aimed to detect the effects of miR-143 and miR-145, the most downregulated in CA samples using high-throughput sequencing, on cell proliferation and apoptosis, to determine a novel therapeutic target for CA recurrence. RT-qPCR was used to validate the lower expression of miR-143 and miR-145 in a larger size of CA samples, and the expression of NRAS in CA samples was significantly higher than self-controls as determined by western blotting assay. Luciferase assay was performed to confirm that miR-143 or miR-145 targeted NRAS directly. Transduction of LV-pre-miR-143 or LV-pre-miR-145 to human papilloma virus (HPV)-infected SiHa cells led to reduced proliferation, greater apoptosis and inhibition of expression of NRAS, PI3 K p110α and p-AKT. However, knockout of miR-143 or miR-145 in human epidermal keratinocytes by delivery of CRISPR/CAS9-gRNA for target miRNAs protected cells from apoptosis and upregulated expression of target genes as described above. MiR-143 and miR-145 sensitized cells to nutlin-3a, a p53 activator and MDM2 antagonist, while their loss protected cells from the stress of nutlin-3a. Furthermore, siRNA targeting NRAS showed similar effects on proliferation and apoptosis as miR-143 or miR-145. Taken together, our results suggest that loss of miR-143 or miR-145 in CA protects HPV-infected cells from apoptosis induced by environmental stress, in addition to promoting cellular proliferation and inhibiting apoptosis by targeting NRAS/PI3 K/ATK. Restoration of miR-143 or miR-145 might provide an applicable and novel approach to block the recurrence and progression of CA.
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Affiliation(s)
| | | | | | | | - Liming Ruan
- Department of Dermatology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, People's Republic of China
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70
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Identification of virus-encoded microRNAs in divergent Papillomaviruses. PLoS Pathog 2018; 14:e1007156. [PMID: 30048533 PMCID: PMC6062147 DOI: 10.1371/journal.ppat.1007156] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/15/2018] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are small RNAs that regulate diverse biological processes including multiple aspects of the host-pathogen interface. Consequently, miRNAs are commonly encoded by viruses that undergo long-term persistent infection. Papillomaviruses (PVs) are capable of undergoing persistent infection, but as yet, no widely-accepted PV-encoded miRNAs have been described. The incomplete understanding of PV-encoded miRNAs is due in part to lack of tractable laboratory models for most PV types. To overcome this, we have developed miRNA Discovery by forced Genome Expression (miDGE), a new wet bench approach to miRNA identification that screens numerous pathogen genomes in parallel. Using miDGE, we screened over 73 different PV genomes for the ability to code for miRNAs. Our results show that most PVs are unlikely to code for miRNAs and we conclusively demonstrate a lack of PV miRNA expression in cancers associated with infections of several high risk HPVs. However, we identified five different high-confidence or highly probable miRNAs encoded by four different PVs (Human PVs 17, 37, 41 and a Fringilla coelebs PV (FcPV1)). Extensive in vitro assays confirm the validity of these miRNAs in cell culture and two FcPV1 miRNAs are further confirmed to be expressed in vivo in a natural host. We show that miRNAs from two PVs (HPV41 & FcPV1) are able to regulate viral transcripts corresponding to the early region of the PV genome. Combined, these findings identify the first canonical PV miRNAs and support that miRNAs of either host or viral origin are important regulators of the PV life cycle.
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71
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The Nefarious Nexus of Noncoding RNAs in Cancer. Int J Mol Sci 2018; 19:ijms19072072. [PMID: 30018188 PMCID: PMC6073630 DOI: 10.3390/ijms19072072] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 07/12/2018] [Indexed: 02/07/2023] Open
Abstract
The past decade has witnessed enormous progress, and has seen the noncoding RNAs (ncRNAs) turn from the so-called dark matter RNA to critical functional molecules, influencing most physiological processes in development and disease contexts. Many ncRNAs interact with each other and are part of networks that influence the cell transcriptome and proteome and consequently the outcome of biological processes. The regulatory circuits controlled by ncRNAs have become increasingly more relevant in cancer. Further understanding of these complex network interactions and how ncRNAs are regulated, is paving the way for the identification of better therapeutic strategies in cancer.
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72
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Pardini B, De Maria D, Francavilla A, Di Gaetano C, Ronco G, Naccarati A. MicroRNAs as markers of progression in cervical cancer: a systematic review. BMC Cancer 2018; 18:696. [PMID: 29945565 PMCID: PMC6020348 DOI: 10.1186/s12885-018-4590-4] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 06/13/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Invasive cervical cancer (ICC) is caused by high-risk human papillomavirus types (HR-HPVs) and is usually preceded by a long phase of intraepithelial neoplasia (CIN). Before invasion, (epi) genetic changes, potentially applicable as molecular markers within cervical screening, occur in HPV host cells. Epigenetic alterations, such as dysregulation of microRNA (miRNA) expression, are frequently observed in ICC. The mechanisms and role of miRNA dysregulation in cervical carcinogenesis are still largely unknown. METHODS We provide an overview of the studies investigating miRNA expression in relation to ICC progression, highlighting their common outcomes and their weaknesses/strengths. To achieve this, we systematically searched through Pubmed database all articles between January 2010 and December 2017. RESULTS From the 24 studies retrieved, miR-29a and miR-21 are the most frequently down- and up-regulated in ICC progression, respectively. Microarray-based studies show a small overlap, with miR-10a, miR-20b, miR-9, miR-16 and miR-106 found repeatedly dysregulated. miR-34a, miR-125 and miR-375 were also found dysregulated in cervical exfoliated cells in relation to cancer progression. CONCLUSIONS The pivotal role of miRNAs in ICC progression and initial development is becoming more and more relevant. Available studies are essentially based on convenience material, entailing possible selection bias, and frequently of small size: all these points still represent a limitation to a wide comprehension of miRNAs relevant for ICC. The targeted approach instead of a genome-wide investigation still precludes the identification of all the relevant miRNAs in the process. The implementation of deep sequencing on large scale population-based studies will help to discover and validate the relation between altered miRNA expression and CC progression for the identification of biomarkers. Optimally, once explored on a miRNome scale, small specific miRNA signatures maybe used in the context of screening.
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Affiliation(s)
- Barbara Pardini
- Italian Institute for Genomic Medicine (IIGM), Via Nizza 52, 10126, Turin, Italy.,Department of Medical Sciences, University of Turin, Via Santena 19, 10126, Turin, Italy
| | - Daniela De Maria
- Italian Institute for Genomic Medicine (IIGM), Via Nizza 52, 10126, Turin, Italy
| | - Antonio Francavilla
- Italian Institute for Genomic Medicine (IIGM), Via Nizza 52, 10126, Turin, Italy
| | - Cornelia Di Gaetano
- Italian Institute for Genomic Medicine (IIGM), Via Nizza 52, 10126, Turin, Italy.,Department of Medical Sciences, University of Turin, Via Santena 19, 10126, Turin, Italy
| | - Guglielmo Ronco
- Center for Cancer Epidemiology and Prevention, AO City of Health and Science, Via Cavour, 31 10123, Turin, Italy
| | - Alessio Naccarati
- Italian Institute for Genomic Medicine (IIGM), Via Nizza 52, 10126, Turin, Italy.
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Nikitakis NG, Pentenero M, Georgaki M, Poh CF, Peterson DE, Edwards P, Lingen M, Sauk JJ. Molecular markers associated with development and progression of potentially premalignant oral epithelial lesions: Current knowledge and future implications. Oral Surg Oral Med Oral Pathol Oral Radiol 2018; 125:650-669. [DOI: 10.1016/j.oooo.2018.03.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 03/26/2018] [Accepted: 03/26/2018] [Indexed: 12/21/2022]
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Identification of miRNAs in cervical mucus as a novel diagnostic marker for cervical neoplasia. Sci Rep 2018; 8:7070. [PMID: 29728572 PMCID: PMC5935744 DOI: 10.1038/s41598-018-25310-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 04/18/2018] [Indexed: 01/17/2023] Open
Abstract
microRNAs (miRNAs) play important roles in regulation of gene expression during cervical carcinogenesis. We investigated expression profiles of miRNAs in cervical cancer and its precursor lesions by utilizing cervical mucus. Cervical mucus was collected from 230 patients with a normal cervix, cervical intraepithelial neoplasia (CIN), squamous cell carcinoma (SCC), or adenocarcinoma (AD). The levels of miRNA in the mucus were quantified by miRNA array and real-time reverse-transcriptase polymerase chain reaction (RT-PCR). The performance for detecting diseases was statistically analysed. The expression of miRNAs was further validated in the surgical tissues of enrolled patients. Four miRNAs (miR-126-3p, -20b-5p, -451a, and -144-3p) were significantly up-regulated in SCC and AD compared with normal, and their expression levels correlated with disease severity and high-risk human papillomavirus infection. Receiver operating characteristic curve analyses revealed that the area under the curve values for miR-126-3p, -20b-5p, -451a, and -144-3p were 0.89, 0.90, 0.94, and 0.93, respectively, for SCC plus AD compared with normal, showing high accuracy of cancer detection. Real-time RT-PCR analyses confirmed the expression of these four miRNAs in frozen tissues from cervical cancer. miR-126-3p, -20b-5p, -451a, and -144-3p in cervical mucus are promising biomarkers for cervical cancer and high-grade CINs.
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The Role of miRNAs in Virus-Mediated Oncogenesis. Int J Mol Sci 2018; 19:ijms19041217. [PMID: 29673190 PMCID: PMC5979478 DOI: 10.3390/ijms19041217] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 12/16/2022] Open
Abstract
To date, viruses are reported to be responsible for more than 15% of all tumors worldwide. The oncogenesis could be influenced directly by the activity of viral oncoproteins or by the chronic infection or inflammation. The group of human oncoviruses includes Epstein–Barr virus (EBV), human papillomavirus (HPV), hepatitis B virus (HBV), hepatitis C virus (HCV), human herpesvirus 8 (HHV-8) or polyomaviruses, and transregulating retroviruses such as HIV or HTLV-1. Most of these viruses express short noncoding RNAs called miRNAs to regulate their own gene expression or to influence host gene expression and thus contribute to the carcinogenic processes. In this review, we will focus on oncogenic viruses and summarize the role of both types of miRNAs, viral as well as host’s, in the oncogenesis.
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Abstract
High-risk human papillomavirus infection is essential for the malignant transformation of cervical cancer and can inhibit host miR-27a expression. We investigated the role and mechanism of miR-27a in cervical cancer progression. miR-27a is decreased in cervical cancer cell lines and miR-27a-agomir inhibited the cell proliferation, migration, and invasion properties of HeLa (adenocarcinoma) cells, but not in SiHa cells (squamous cell carcinoma). Luciferase assays revealed that miR-27a directly targets the 3′-UTR of transforming growth factor beta receptor I (TGF-βRI) and downregulates TGF-β signaling. The co-transfection of a TGF-βRI expression vector largely restored the inhibition of TGF-β signaling, cell proliferation, migration, and invasion mediated by miR-27a-agomir. Also, miR-27a-agomir slows down the growth of subcutaneous HeLa xenografts and downregulates the TGF-βRI expression and TGF-β signaling in tumor in vivo. Tissue microarray analysis revealed a low miR-27a level in adenocarcinoma cells, but not in squamous cell carcinoma cells, which was negatively associated with TGF-βRI expression. High TGF-βRI correlated with deep stromal invasion and lymph node metastasis. These results suggest that miR-27a acts as a tumor suppressor in cervical cancer, especially in adenocarcinoma, by inhibiting TGF-βRI signaling pathway. Thus, enhancing miR-27a expression and function may be a novel treatment strategy for cervical adenocarcinoma.
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Yang XH, Guo F. miR‑3147 serves as an oncomiR in vulvar squamous cell cancer via Smad4 suppression. Mol Med Rep 2018; 17:6397-6404. [PMID: 29512734 PMCID: PMC5928616 DOI: 10.3892/mmr.2018.8697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 03/01/2018] [Indexed: 02/06/2023] Open
Abstract
The incidence of vulvar squamous cell carcinoma (VSCC) has increased annually over the last decade. MicroRNAs (miRNAs/miRs) serve an important role in tumor progression and development. Our previous microarray studies have revealed that miR-3147 was overexpressed in VSCC. However, its function and underlying mechanism in VSCC remain unknown. In the present study, it was confirmed by reverse transcription-quantitative polymerase chain reaction that the expression of miR-3147 was markedly upregulated in VSCC tissues. The increased expression of miR-3147 was positively associated with the depth of invasion. The overexpression of miR-3147 resulted in the promotion of vulvar cancer cell proliferation, migration, invasion, G1/S progression and invasion-associated gene expression. miR-3147 may participate in the process of epithelial-mesenchymal transition and reduce the expressions of downstream target genes in the transforming growth factor-β/Smad signaling pathway in A431 cells. The knockdown of Smad4 by small interfering RNA promoted malignant behaviours in A431 cells. In addition, miR-3147 regulated Smad4 by directly binding to its 3′ untranslated region. In conclusion, the results indicated that miR-3147 may serve an oncogenic role in VSCC by targeting Smad4. miR-3147 may represent a novel potential therapeutic target marker for VSCC.
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Affiliation(s)
- Xiu-Hua Yang
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Feng Guo
- Department of Emergency, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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78
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Tan D, Zhou C, Han S, Hou X, Kang S, Zhang Y. MicroRNA-378 enhances migration and invasion in cervical cancer by directly targeting autophagy-related protein 12. Mol Med Rep 2018; 17:6319-6326. [PMID: 29488616 PMCID: PMC5928611 DOI: 10.3892/mmr.2018.8645] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 01/08/2018] [Indexed: 11/06/2022] Open
Abstract
Cervical cancer is the second most common type of cancer among women worldwide and a leading cause of mortality in women. Metastases reduce the overall survival rate in patients with cervical cancer. Thus, it is clinically urgent to investigate the molecular mechanism of cervical cancer metastasis. The aim of the present study was to investigate the mechanism of microRNA (miR)‑378 in the metastasis of cervical cancer. In the present study, miR‑378 expression levels were significantly upregulated in cervical cancer tissues and cervical intraepithelial neoplasia III tissues when compared with normal cervix tissues. Re‑expression of miR‑378 significantly promoted tumor migration and invasion in vitro, and metastasis in vivo, while downregulation of miR‑378 suppressed the effect in vitro. Luciferase reporter assay revealed that autophagy‑related protein 12 (ATG12) was a direct target of miR‑378 and its expression was downregulated by miR‑378. In cervical cancer tissues with lymph node metastasis, miR‑378 was upregulated while ATG12 was downregulated when compared with lymph node negative cases. To the best of our knowledge, the present study is the first to provide evidence that miR‑378 may be associated with ATG12. Collectively, the data of the present study suggested that miR‑378 may function as an oncogene by promoting metastasis in cervical cancer. The finding that miR‑378 targets ATG12 indicated that miR‑378 may have a potential role in autophagy. These findings may provide novel insights into the mechanism of metastasis in cervical cancer and a novel therapeutic target for the treatment of cervical cancer.
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Affiliation(s)
- Dongmei Tan
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Chao Zhou
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Sai Han
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xuetao Hou
- Department of Obstetrics and Gynecology, Laiwu Maternal and Child Health Care Hospital, Laiwu, Shandong 271100, P.R. China
| | - Shufang Kang
- Department of Obstetrics and Gynecology, Laiwu Maternal and Child Health Care Hospital, Laiwu, Shandong 271100, P.R. China
| | - Youzhong Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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79
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Sharma S, Munger K. Expression of the cervical carcinoma expressed PCNA regulatory (CCEPR) long noncoding RNA is driven by the human papillomavirus E6 protein and modulates cell proliferation independent of PCNA. Virology 2018; 518:8-13. [PMID: 29427865 DOI: 10.1016/j.virol.2018.01.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/22/2018] [Accepted: 01/31/2018] [Indexed: 12/22/2022]
Abstract
Modulation of expression of noncoding RNAs is an important aspect of the oncogenic activities of high-risk human papillomavirus (HPV) E6 and E7 proteins. While HPV E6/E7-mediated alterations of microRNAs (miRNAs) has been studied in detail there are fewer reports on HPV-mediated dysregulation of long noncoding RNAs (lncRNAs). The cervical carcinoma expressed PCNA regulatory (CCEPR) lncRNA is highly expressed in cervical cancers and expression correlates with tumor size and patient outcome. We report that CCEPR is a nuclear lncRNA and that HPV16 E6 oncogene expression causes increased CCEPR expression through a mechanism that is not directly dependent on TP53 inactivation. CCEPR depletion in cervical carcinoma cell lines reduces viability, while overexpression enhances viability. In contrast to what was published and inspired its designation, there is no evidence for PCNA mRNA stabilization, and hence CCEPR likely functions through a different mechanism.
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Affiliation(s)
- Surendra Sharma
- Biochemistry Program, Sackler School of Graduate Biomedical Sciences and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA 02111, United States
| | - Karl Munger
- Biochemistry Program, Sackler School of Graduate Biomedical Sciences and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA 02111, United States.
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80
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Dysregulation of cellular microRNAs by human oncogenic viruses - Implications for tumorigenesis. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:95-105. [PMID: 29378330 DOI: 10.1016/j.bbagrm.2018.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 01/15/2018] [Accepted: 01/21/2018] [Indexed: 12/11/2022]
Abstract
Infection with certain animal and human viruses, often referred to as tumor viruses, induces oncogenic processes in their host. These viruses can induce tumorigenesis through direct and/or indirect mechanisms, and the regulation of microRNAs expression has been shown to play a key role in this process. Some human oncogenic viruses can express their own microRNAs; however, they all can dysregulate the expression of cellular microRNAs, facilitating their respective life cycles. The modulation of cellular microRNAs expression brings consequences to the host cells that may lead to malignant transformation, since microRNAs regulate the expression of genes involved in oncogenic pathways. This review focus on the mechanisms used by each human oncogenic virus to dysregulate the expression of cellular microRNAs, and their impact on tumorigenesis.
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81
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Laengsri V, Kerdpin U, Plabplueng C, Treeratanapiboon L, Nuchnoi P. Cervical Cancer Markers: Epigenetics and microRNAs. Lab Med 2018; 49:97-111. [DOI: 10.1093/labmed/lmx080] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Vishuda Laengsri
- Center for Research & Innovation, Mahidol University, Bangkok, Thailand
- Department of Clinical Microscopy, Mahidol University, Bangkok, Thailand
| | - Usanee Kerdpin
- Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Chotiros Plabplueng
- Center for Research & Innovation, Mahidol University, Bangkok, Thailand
- Department of Clinical Microscopy, Mahidol University, Bangkok, Thailand
| | - Lertyot Treeratanapiboon
- Department of Community Medical Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Pornlada Nuchnoi
- Center for Research & Innovation, Mahidol University, Bangkok, Thailand
- Department of Clinical Microscopy, Mahidol University, Bangkok, Thailand
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82
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Chen X, Loo JX, Shi X, Xiong W, Guo Y, Ke H, Yang M, Jiang Y, Xia S, Zhao M, Zhong S, He C, Fu L, Li F. E6 Protein Expressed by High-Risk HPV Activates Super-Enhancers of the EGFR and c-MET Oncogenes by Destabilizing the Histone Demethylase KDM5C. Cancer Res 2018; 78:1418-1430. [DOI: 10.1158/0008-5472.can-17-2118] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 11/28/2017] [Accepted: 01/09/2018] [Indexed: 11/16/2022]
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83
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Ivanov MK, Titov SE, Glushkov SA, Dzyubenko VV, Malek AV, Arkhangelskaya PA, Samsonov RB, Mikhetko AA, Bakhidze EV, Berlev IV, Kolesnikov NN. Detection of high-grade neoplasia in air-dried cervical PAP smears by a microRNA-based classifier. Oncol Rep 2018; 39:1099-1111. [PMID: 29328473 PMCID: PMC5802032 DOI: 10.3892/or.2018.6214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 12/29/2017] [Indexed: 01/17/2023] Open
Abstract
Recent studies have shown that changes in the expression levels of certain microRNAs correlate with the degree of severity of cervical lesions. The aim of the present study was to develop a microRNA-based classifier for the detection of high-grade cervical intraepithelial neoplasia (CIN ≥2) in cytological samples from patients with different high-risk human papillomavirus (HR-HPV) viral loads. For this purpose, raw RT-qPCR data for 25 candidate microRNAs, U6 snRNA and human DNA in air-dried PAP smears from 174 women with different cervical cytological diagnoses, 144 of which were HR-HPV-positive [40 negative for intraepithelial lesion or malignancy (NILM), 34 low-grade squamous intraepithelial lesions (L-SIL), 57 high-grade squamous intraepithelial lesions (H-SIL), 43 invasive cancers], were statistically processed. The expression level changes of various individual microRNAs were found to be significantly correlated with the cytological diagnosis but the statistical significance of this correlation was critically dependent on the normalization strategy. We developed a linear classifier based on the paired ratios of 8 microRNA concentrations and cellular DNA content. The classifier determines the dimensionless coefficient (DF value), which increases with the severity of cervical lesion. The high- and low-grade CINs were better distinguished by the microRNA classifier than by the measurement of individual microRNA levels with the use of traditional normalization methods. The diagnostic sensitivity of detecting high-grade lesions (CIN ≥2) with the developed microRNA classifier was 83.4%, diagnostic specificity 81.2%, ROC AUC=0.913. The analysis can be performed with the same nucleic acid preparation as used for HPV testing. No statistically significant correlation of the DF value and HR-HPV DNA load was found. The DF value and the HR HPV presence and viral DNA load may be regarded as independent criteria that can complement each other in molecular screening for high-grade cervical intraepithelial neoplasia. Although it has several limitations, the present study showed that the small-scale analysis of microRNA signatures performed by simple PCR-based methods may be useful for improving the diagnostic/prognostic value of cervical screening.
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Affiliation(s)
| | | | | | | | - Anastasia V Malek
- N.N. Petrov Research Institute of Oncology, 197758 Saint Petersburg, Russia
| | | | - Roman B Samsonov
- N.N. Petrov Research Institute of Oncology, 197758 Saint Petersburg, Russia
| | - Andrey A Mikhetko
- N.N. Petrov Research Institute of Oncology, 197758 Saint Petersburg, Russia
| | - Elena V Bakhidze
- N.N. Petrov Research Institute of Oncology, 197758 Saint Petersburg, Russia
| | - Igor V Berlev
- N.N. Petrov Research Institute of Oncology, 197758 Saint Petersburg, Russia
| | - Nikolay N Kolesnikov
- Institute of Molecular and Cellular Biology, Siberian Branch of The Russian Academy of Sciences, 630090 Novosibirsk, Russia
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84
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Cui L, Markou A, Stratton CW, Lianidou E. Diagnosis and Assessment of Microbial Infections with Host and Microbial MicroRNA Profiles. ADVANCED TECHNIQUES IN DIAGNOSTIC MICROBIOLOGY 2018. [PMCID: PMC7119978 DOI: 10.1007/978-3-319-95111-9_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) encoded by viral genome or host have been found participating in host-microbe interactions. Differential expression profiles of miRNAs were shown linking to specific disease pathologies which indicated its potency as diagnostic/prognostic biomarkers of infectious disease. This was emphasized by the discovery of circulating miRNAs which were found to be remarkably stable in mammalian biofluids. Standardized methods of miRNA quantification including RNA isolation should be established before they will be ready for use in clinical practice.
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85
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Suppression of MicroRNA 424 Levels by Human Papillomaviruses Is Necessary for Differentiation-Dependent Genome Amplification. J Virol 2017; 91:JVI.01712-17. [PMID: 28978708 DOI: 10.1128/jvi.01712-17] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 09/27/2017] [Indexed: 02/07/2023] Open
Abstract
High-risk human papillomaviruses (HPVs) link their life cycle to epithelial differentiation and require activation of DNA damage pathways for efficient replication. HPVs modulate the expression of cellular transcription factors, as well as cellular microRNAs (miRNAs) to control these activities. One miRNA that has been reported to be repressed in HPV-positive cancers of the cervix and oropharynx is miR-424. Our studies show that miR-424 levels are suppressed in cell lines that stably maintain HPV 31 or 16 episomes, as well as cervical cancer lines that contain integrated genomes such as SiHa. Introduction of expression vectors for miR-424 reduced both the levels of HPV genomes in undifferentiated cells and amplification upon differentiation. Our studies show that the levels of two putative targets of miR-424 that function in DNA damage repair, CHK1 and Wee1, are suppressed in HPV-positive cells, providing an explanation for why this microRNA is targeted in HPV-positive cells.IMPORTANCE We describe here for the first time a critical role for miR-424 in the regulation of HPV replication. HPV E6 and E7 proteins suppress the levels of miR-424, and this is important for controlling the levels of CHK1, which plays a central role in viral replication.
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86
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Liu F, Zhang S, Zhao Z, Mao X, Huang J, Wu Z, Zheng L, Wang Q. MicroRNA-27b up-regulated by human papillomavirus 16 E7 promotes proliferation and suppresses apoptosis by targeting polo-like kinase2 in cervical cancer. Oncotarget 2017; 7:19666-79. [PMID: 26910911 PMCID: PMC4991410 DOI: 10.18632/oncotarget.7531] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 12/30/2015] [Indexed: 12/13/2022] Open
Abstract
The infection with high-risk human papillomavirus is linked to cervical cancer, nevertheless, the role of miRNAs regulated by HPV oncogenes in cancer progression remain largely unknown. Here, we knocked down endogenous E6/E7 in HPV16-positive CaSki cell lines, screened differences in miRNA expression profile with control using miRNA array. 38 miRNAs were down-regulated and 6 miRNAs were up-regulated in the E6/E7 silenced CaSki cells (>2-fold changes with P <0.05). The levels of miR-27b, miR-20a, miR-24, miR-93, and miR-106b were verified by qPCR in E6/E7 silenced CaSki and SiHa cells. MiR-27b, up-regulated by E7, promoted CaSki and SiHa cell proliferation and invasion, inhibit paclitaxel-induced apoptosis. Dual-luciferase experiment confirmed miR-27b down-regulated its target gene PLK2 through the “seed regions”. The tumor suppressor PLK2 inhibited SiHa cell proliferation, reduced cell viability, and promoted paclitaxel/cisplatin -induced apoptosis. Furthermore, DGCR8 was found to mediate the up-regulation of miR-27b by HPV16 E7. Our study demonstrated that HPV16 E7 could increase DGCR8 to promote the generation of miR-27b, which accelerated cell proliferation and inhibited paclitaxel-induced cell apoptosis through down-regulating PLK2. These findings provide an insight into the interaction network of viral oncogene, miR-27b and PLK2, and support the potential strategies using antisense nucleic acid of miR-27b for therapy of cervical cancer in the future.
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Affiliation(s)
- Fei Liu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Clinical Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Shimeng Zhang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Central Laboratory, Shenzhen Shekou People's Hospital, Shenzhen 518000, China
| | - Zhen Zhao
- Department of Laboratory Medicine, NIH Clinical Center, Bethesda, MD 20892, USA
| | - Xinru Mao
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jinlan Huang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zixian Wu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qian Wang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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87
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Boscolo-Rizzo P, Furlan C, Lupato V, Polesel J, Fratta E. Novel insights into epigenetic drivers of oropharyngeal squamous cell carcinoma: role of HPV and lifestyle factors. Clin Epigenetics 2017; 9:124. [PMID: 29209433 PMCID: PMC5704592 DOI: 10.1186/s13148-017-0424-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/18/2017] [Indexed: 12/22/2022] Open
Abstract
In the last years, the explosion of high throughput sequencing technologies has enabled epigenome-wide analyses, allowing a more comprehensive overview of the oropharyngeal squamous cell carcinoma (OPSCC) epigenetic landscape. In this setting, the cellular pathways contributing to the neoplastic phenotype, including cell cycle regulation, cell signaling, DNA repair, and apoptosis have been demonstrated to be potential targets of epigenetic alterations in OPSCC. Of note, it has becoming increasingly clear that HPV infection and OPSCC lifestyle risk factors differently drive the epigenetic machinery in cancer cells. Epigenetic changes, including DNA methylation, histone modifications, and non-coding RNA expression, can be used as powerful and reliable tools for early diagnosis of OPSCC patients and improve prognostication. Since epigenetic changes are dynamic and reversible, epigenetic enzymes may also represent suitable targets for the development of more effective OPSCC therapeutic strategies. Thus, this review will focus on the main known epigenetic modifications that can occur in OPSCC and their exploitation as potential biomarkers and therapeutic targets. Furthermore, we will address epigenetic alterations to OPSCC risk factors, with a particular focus on HPV infection, tobacco exposure, and heavy alcohol consumption.
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Affiliation(s)
- Paolo Boscolo-Rizzo
- Department of Neurosciences, ENT Clinic and Regional Center for Head and Neck Cancer, Treviso Regional Hospital, University of Padova, Treviso, Italy
| | - Carlo Furlan
- Division of Radiotherapy, Centro di Riferimento Oncologico, IRCCS-National Cancer Institute, Aviano, PN Italy
| | - Valentina Lupato
- Unit of Otolaryngology, General Hospital “S. Maria degli Angeli”, Pordenone, Italy
| | - Jerry Polesel
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico, IRCCS-National Cancer Institute, Aviano, PN Italy
| | - Elisabetta Fratta
- Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico, IRCCS-National Cancer Institute, Aviano, PN Italy
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88
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Wan Y, Vagenas D, Salazar C, Kenny L, Perry C, Calvopiña D, Punyadeera C. Salivary miRNA panel to detect HPV-positive and HPV-negative head and neck cancer patients. Oncotarget 2017; 8:99990-100001. [PMID: 29245955 PMCID: PMC5725146 DOI: 10.18632/oncotarget.21725] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 07/26/2017] [Indexed: 01/20/2023] Open
Abstract
Head and neck squamous cell carcinomas (HNSCC) are a heterogeneous group of tumours that originate predominantly from the oral cavity, pharynx and larynx. Our aim was to determine whether salivary miRNA expression levels can diagnose these cancer subtypes. Saliva samples were collected from healthy controls (n=113, smoker and non-smokers), HPV-positive (n=54) and HPV-negative (n=47) HNSCC patients. The miRNA expression levels in saliva was quantified using qPCR. The potential of salivary miRNAs to discriminate these groups of patients was evaluated using multiple logistic regression with ROC analysis and a 10-fold cross-validation analysis. Salivary miRNA-9, -127, -134, -191, -222 and -455 were shown to discriminate a control group from a HPV-negative HNSCC patient group with a sensitivity of 60% and a specificity of 94%; whilst salivary miRNA-9,-134, -196b, -210, and -455 were the most parsimonious subset discriminating a control group from a HPV-positive HNSCC group, with a sensitivity of 65% and a specificity of 95%. Furthermore, miRNA-9, -134, -196b, -210 and -455 as a panel, was the most parsimonious subset to discriminate HPV-positive HNSCC patients from HPV-negative HNSCC patients. In addition, the expression levels of miRNA-9, -127, -196a, -196b, -210, -222 and -455 were significantly increased in the saliva collected from early stage HNSCC patients compared to controls. A future multi-centre confirmatory study is warranted to test the diagnostic performance of these salivary miRNA prior to clinical implementation.
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Affiliation(s)
- Yunxia Wan
- School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, Australia
| | - Dimitrios Vagenas
- Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, Woolloongabba, Queensland, Australia
| | - Carolina Salazar
- The School of Chemistry and Molecular Biosciences, The University of Queensland, Queensland, Australia
- The University of Queensland Diamantina Institute, The University of Queensland, The Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Liz Kenny
- The School of Medicine, University of Queensland, Queensland, Australia
- Royal Brisbane and Women’s Hospital, Brisbane, Central Integrated Regional Cancer Service, Queensland Health, Woolloongabba, Queensland, Australia
| | - Chris Perry
- Princess Alexandra Hospital, Woolloongabba, Brisbane, Australia
| | - Diego Calvopiña
- The School of Chemistry and Molecular Biosciences, The University of Queensland, Queensland, Australia
- The University of Queensland Diamantina Institute, The University of Queensland, The Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Chamindie Punyadeera
- School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Kelvin Grove, Brisbane, Australia
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89
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Abstract
Virology is probably the most rapidly developing field within clinical laboratory medicine. Adequate diagnostic methods exist for the diagnostics of most acute viral infections. However, emergence of pathogenic viruses or virus strains and new disease associations of known viruses require the establishment of new diagnostic methods, sometimes very rapidly. In the field of chronic or persistent viral diseases, particularly those involving potential of malignant or fatal development, there is a constant need for improved differential diagnostics, monitoring, prognosis and risk assessment. Increasing understanding of disease pathogenesis also enables better patient management and personalized medicine, where companion diagnostics can offer precise and specific tools for individual care. Very often the new tools are offered by molecular diagnostic techniques, and this includes the detection of microRNAs (miRNAs). miRNAs are small regulatory RNA molecules, which regulate the expression of their target genes. They are encoded both by viruses and their host, and both can target either viral or cellular gene expression. In this review the diagnostic possibilities offered by miRNA will be discussed. The focus will be on selected viral and human miRNAs in viral diseases, and examples of miRNAs of putative diagnostic potential will be presented.
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Affiliation(s)
- Eeva Auvinen
- Department of Virology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 3, POB 21, 00014, Helsinki, Finland.
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90
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Hong SY. DNA damage response is hijacked by human papillomaviruses to complete their life cycle. J Zhejiang Univ Sci B 2017; 18:215-232. [PMID: 28271657 DOI: 10.1631/jzus.b1600306] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The DNA damage response (DDR) is activated when DNA is altered by intrinsic or extrinsic agents. This pathway is a complex signaling network and plays important roles in genome stability, tumor transformation, and cell cycle regulation. Human papillomaviruses (HPVs) are the main etiological agents of cervical cancer. Cervical cancer ranks as the fourth most common cancer among women and the second most frequent cause of cancer-related death worldwide. Over 200 types of HPVs have been identified and about one third of these infect the genital tract. The HPV life cycle is associated with epithelial differentiation. Recent studies have shown that HPVs deregulate the DDR to achieve a productive life cycle. In this review, I summarize current findings about how HPVs mediate the ataxia-telangiectasia mutated kinase (ATM) and the ATM-and RAD3-related kinase (ATR) DDRs, and focus on the roles that ATM and ATR signalings play in HPV viral replication. In addition, I demonstrate that the signal transducer and activator of transcription-5 (STAT)-5, an important immune regulator, can promote ATM and ATR activations through different mechanisms. These findings may provide novel opportunities for development of new therapeutic targets for HPV-related cancers.
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Affiliation(s)
- Shi-Yuan Hong
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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91
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Park S, Eom K, Kim J, Bang H, Wang HY, Ahn S, Kim G, Jang H, Kim S, Lee D, Park KH, Lee H. MiR-9, miR-21, and miR-155 as potential biomarkers for HPV positive and negative cervical cancer. BMC Cancer 2017; 17:658. [PMID: 28934937 PMCID: PMC5609051 DOI: 10.1186/s12885-017-3642-5] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 09/05/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Cervical cancer is the second leading cause of death among female patients with cancer in the world. High risk human papillomavirus has causal roles in cervical cancer initiation and progression by deregulating several cellular processes. However, HPV infection is not sufficient for cervical carcinoma development. Therefore, other genetic and epigenetic factors may be involved in this complex disease, and the identification of which may lead to better diagnosis and treatment. Our aim was to analyze the expression of microRNAs in cervical cancer cases positive or negative for HPV E6/E7 mRNA, and to assess their diagnostic usefulness and relevance. METHODS The expression of three different microRNAs (miR-9, miR-21, and miR-155) in 52 formalin-fixed paraffin-embedded (FFPE) primary cervical cancer tissue samples and 50 FFPE normal cervical tissue samples were evaluated. RESULTS MiR-9, miR-21, and miR-155 were significantly overexpressed in cervical cancer tissues compared to normal tissues (P < 0.001). MiR-21 and miR-155 expression combined with the HPV E6/E7 mRNA assay in HPV E6/E7 negative cervical cancer showed increased AUC of 0.7267 and 0.7000, respectively (P = 0.01, P = 0.04), demonstrating their potential as diagnostic tools. Moreover, miR-21 and miR-155 were predictors showing a 7 fold and 10.3 fold higher risk for HPV E6/E7 negative patients with cervical cancer (P = 0.024 and P = 0.017, respectively) while miR-155 was a predictor showing a 27.9 fold higher risk for HPV E6/E7 positive patients with cervical cancer (P < 0.0001). CONCLUSIONS There is a strong demand for additional, alternative molecular biomarkers for diagnosis and management of precancer patients. MiR-21 and miR-155 may be helpful in the prediction of both HPV positive and HPV negative cases of cervical cancer.
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Affiliation(s)
- Sunyoung Park
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Kiyoon Eom
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Jungho Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Hyeeun Bang
- Optipharm M&D, Inc., Wonju Eco Environmental Technology Center, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Hye-Young Wang
- Optipharm M&D, Inc., Wonju Eco Environmental Technology Center, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Sungwoo Ahn
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Geehyuk Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Hyoungsoon Jang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea
| | - Sunghyun Kim
- Department of Clinical Laboratory Science, College of Health Sciences, Catholic University of Pusan, Pusan, Republic of Korea
| | - Dongsup Lee
- Department of Clinical Laboratory Science, Hyejeon College, Hongseoung, Republic of Korea
| | - Kwang Hwa Park
- Department of Pathology, Wonju College of Medicine, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju-si, Gangwon-do, 26426, Republic of Korea.
| | - Hyeyoung Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University, Wonju-si, Gangwon-do, 26493, Republic of Korea.
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92
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Epigenetic Alterations in Human Papillomavirus-Associated Cancers. Viruses 2017; 9:v9090248. [PMID: 28862667 PMCID: PMC5618014 DOI: 10.3390/v9090248] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 08/25/2017] [Accepted: 08/25/2017] [Indexed: 12/15/2022] Open
Abstract
Approximately 15–20% of human cancers are caused by viruses, including human papillomaviruses (HPVs). Viruses are obligatory intracellular parasites and encode proteins that reprogram the regulatory networks governing host cellular signaling pathways that control recognition by the immune system, proliferation, differentiation, genomic integrity, and cell death. Given that key proteins in these regulatory networks are also subject to mutation in non-virally associated diseases and cancers, the study of oncogenic viruses has also been instrumental to the discovery and analysis of many fundamental cellular processes, including messenger RNA (mRNA) splicing, transcriptional enhancers, oncogenes and tumor suppressors, signal transduction, immune regulation, and cell cycle control. More recently, tumor viruses, in particular HPV, have proven themselves invaluable in the study of the cancer epigenome. Epigenetic silencing or de-silencing of genes can have cellular consequences that are akin to genetic mutations, i.e., the loss and gain of expression of genes that are not usually expressed in a certain cell type and/or genes that have tumor suppressive or oncogenic activities, respectively. Unlike genetic mutations, the reversible nature of epigenetic modifications affords an opportunity of epigenetic therapy for cancer. This review summarizes the current knowledge on epigenetic regulation in HPV-infected cells with a focus on those elements with relevance to carcinogenesis.
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93
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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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94
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Cheng Y, Geng L, Zhao L, Zuo P, Wang J. Human papillomavirus E6-regulated microRNA-20b promotes invasion in cervical cancer by targeting tissue inhibitor of metalloproteinase 2. Mol Med Rep 2017; 16:5464-5470. [PMID: 28849054 PMCID: PMC5647092 DOI: 10.3892/mmr.2017.7231] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 08/03/2017] [Indexed: 12/18/2022] Open
Abstract
Human papillomavirus (HPV) infection alone is not sufficient for development of cervical cancer and further risk factors are involved, however, the underlying mechanism remains to be elucidated. The authors previously used a microarray assay to reveal microR‑20b (miR‑20b) as a key node in the miRNA‑mRNA network of cervical carcinoma. The present study demonstrated an increased expression of miR‑20b in cervical carcinoma tissue. MiR‑20b was regulated by HPV E6 oncoprotein in cervical cancer. Furthermore, miR‑20b overexpression with mimics induced cell morphological alterations and the epithelial‑mesenchymal transition. Treating cervical cancer cells with the miR‑20b inhibitor decreased the migration and invasion of cervical cancer cells. Tissue inhibitor of metalloproteinase 2 (TIMP‑2), a possible antagonist of matrix metalloproteinase 2, is a metastasis suppressor and predicted to be a potential target of miR‑20b. Fluorescence signals were decreased on transducing HeLa cells with a TIMP‑2 3'‑untranslated region plasmid and miR‑20b mimics compared with control. Finally, TIMP‑2 was identified as a novel target of miR‑20b and was demonstrated to be regulated by the HPV oncoprotein. In addition, miR‑20b and TIMP‑2 were involved in cell invasion regulated by HPV E6. The present study demonstrated a novel pathway of HPV/miR‑20b/TIMP‑2 during the process of invasion in cervical cancer cells.
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Affiliation(s)
- Yuan Cheng
- Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing 10004, P.R. China
| | - Li Geng
- Department of Gynecology and Obstetrics, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Lijun Zhao
- Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing 10004, P.R. China
| | - Peng Zuo
- Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing 10004, P.R. China
| | - Jianliu Wang
- Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing 10004, P.R. China
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95
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Vojtechova Z, Zavadil J, Klozar J, Grega M, Tachezy R. Comparison of the miRNA expression profiles in fresh frozen and formalin-fixed paraffin-embedded tonsillar tumors. PLoS One 2017; 12:e0179645. [PMID: 28644855 PMCID: PMC5482461 DOI: 10.1371/journal.pone.0179645] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/01/2017] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs are considered as promising prognostic and diagnostic biomarkers of human cancer since their profiles differ between tumor types. Most of the tumor profiling studies were performed on rarely available fresh frozen (FF) samples. Alternatively, archived formalin-fixed paraffin-embedded (FFPE) tissue samples are also well applicable to larger-scale retrospective miRNA profiling studies. The aim of this study was to perform systematic comparison of the miRNA expression profiles between FF and macrodissected FFPE tonsillar tumors using the TaqMan Low Density Array system, with the data processed by different software programs and two types of normalization methods. We observed a marked correlation between the miRNA expression profiles of paired FF and FFPE samples; however, only 27-38% of the differentially deregulated miRNAs overlapped between the two source systems. The comparison of the results with regard to the distinct modes of data normalization revealed an overlap in 58-67% of differentially expressed miRNAs, with no influence of the choice of software platform. Our study highlights the fact that for an accurate comparison of the miRNA expression profiles from published studies, it is important to use the same type of clinical material and to test and select the best-performing normalization method for data analysis.
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Affiliation(s)
- Zuzana Vojtechova
- Department of Genetics and Microbiology, Faculty of Science, Charles University, Prague, Czech Republic
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Jiri Zavadil
- Molecular Mechanisms and Biomarkers Group, International Agency for Research on Cancer, Lyon, France
| | - Jan Klozar
- Department of Otorhinolaryngology and Head and Neck Surgery, 1 Faculty of Medicine, Charles University, Motol University Hospital, Prague, Czech Republic
| | - Marek Grega
- Department of Pathology and Molecular Medicine, 2 Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ruth Tachezy
- Department of Genetics and Microbiology, Faculty of Science, Charles University, Prague, Czech Republic
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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96
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miRNA-expression in tonsillar squamous cell carcinomas in relation to HPV infection and expression of the antileukoproteinase SLPI. PAPILLOMAVIRUS RESEARCH 2017; 4:26-34. [PMID: 29179866 PMCID: PMC5883217 DOI: 10.1016/j.pvr.2017.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 05/22/2017] [Accepted: 06/08/2017] [Indexed: 12/14/2022]
Abstract
The aim of this study was to determine if micro-(mi-)RNAs are involved in the previously reported inverse correlation between the antileukoproteinase SLPI, HPV, and smoking habit of head and neck squamous cells carcinoma (HNSCC) patients. HPV-status and SLPI-protein expression were determined in tonsillar SCC (TSCC; n=126). Differentially expressed miRNAs dependent on HPV-status and SLPI-expression were detected by microarray; possible binding-sites in SLPI- and HPVE6-mRNAs were determined in silico. Survival rates were estimated testing prognostic values of HPV-status, SLPI- and miRNA-expression. miRNA-array identified 24 up-regulated and 10 down-regulated miRNAs in HPV-positive versus HPV-negative TSCC (p<0.01; HPV-positivity: 42.1%). HPV-positivity resulted in two up-regulated miRNAs in SLPI-positive TSCC. Of 16 further miRNAs, eight miRNAs were up- and eight were down-regulated in SLPI-negative TSCC. RT-q-PCR-validation of the four most differentially expressed miRNAs showed that miR-363 is expressed strongest in SLPI-negative/HPV-positive TSSC. In silico-analysis of all differentially expressed miRNAs identified miR-363, miR-210, miR-130a, and miR-181a with possible binding sites in the HPV16-E6-mRNA, but none were predicted in the SLPI-mRNA. HPV-positivity, low SLPI-levels and high miR-363-levels are significantly associated with better survival rates. The data presented here show that miR-363 is associated with HPV-positive/SPLI-negative TSCC. The prognostic value of miR-363 suggests a role in the assumed inverse correlation of smoking and SPLI-expression in the mode of HPV-infections in tonsillar but possibly also other HNSCC.
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97
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Luo S, Li N, Yu S, Chen L, Liu C, Rong J. MicroRNA-92a promotes cell viability and invasion in cervical cancer via directly targeting Dickkopf-related protein 3. Exp Ther Med 2017; 14:1227-1234. [PMID: 28810582 DOI: 10.3892/etm.2017.4586] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 03/10/2017] [Indexed: 12/18/2022] Open
Abstract
MicroRNA-92a (miR-92a) was recently reported to have an oncogenic role in cervical cancer; however, the underlying mechanism remains largely unclear. The present study aimed to investigate the expression, clinical significance and regulatory mechanism of miR-92a in cervical cancer. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) data indicated that miR-92a was significantly upregulated in cervical cancer tissues compared with matched adjacent non-tumor tissues (P<0.01). High expression of miR-92a was significantly associated with poor differentiation (P=0.031), advanced clinical stage (P=0.011) and lymph node metastasis (P=0.014), but not associated with age, tumor size and distant metastasis. Knockdown of miR-92a significantly inhibited the viability and invasion of cervical cancer HeLa cells, while overexpression of miR-92a significantly enhanced HeLa cell viability and invasion (P<0.01). Luciferase reporter assay identified Dickkopf-related protein 3 (DKK3) as a target gene of miR-92a, and the protein expression of DKK3 was negatively regulated by miR-92a in HeLa cells. Furthermore, overexpression of DKK3 significantly eliminated the stimulative effects of miR-92a on HeLa cell viability and invasion (P<0.01). Additionally, DKK3 was significantly downregulated in cervical cancer tissues compared with adjacent non-tumor tissues (P<0.01), inversely correlated to the miR-92a levels in cervical cancer tissues (P<0.01). In summary, the present study indicated that miR-92a promotes cell viability and invasion in cervical cancer, partly at least, via inhibiting the protein expression of DKK3. Therefore, the present study highlights the clinical significance of the miR-92a/DKK3 axis in cervical cancer.
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Affiliation(s)
- Shengtian Luo
- Department of Obstetrics and Gynecology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Na Li
- Department of Obstetrics and Gynecology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Shaohua Yu
- Department of Obstetrics and Gynecology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Lichun Chen
- Department of Obstetrics and Gynecology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Chunying Liu
- Department of Obstetrics and Gynecology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Jiawei Rong
- Department of Obstetrics and Gynecology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
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98
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Herpesviruses hijack host exosomes for viral pathogenesis. Semin Cell Dev Biol 2017; 67:91-100. [PMID: 28456604 DOI: 10.1016/j.semcdb.2017.03.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 03/23/2017] [Accepted: 03/29/2017] [Indexed: 02/06/2023]
Abstract
Herpesviruses are remarkable pathogens possessing elaborate mechanisms to seize various host cellular components for immune evasion, replication, and virion egress. As viruses are dependent upon their hosts, investigating this intricate interplay has revealed that the exosome pathway is utilised by alpha (Herpes Simplex Virus 1), beta (Human Cytomegalovirus, and Human Herpesvirus 6) and gamma (Epstein-Barr Virus, and Kaposi Sarcoma-associated Herpesvirus) herpesviruses. Virions and exosomes share similar properties and functions. For example, exosomes are small membranous nanovesicles (30-150nm) released from cells that contain proteins, DNA, and various coding and non-coding RNA species. Given exosomes can shuttle various molecular cargo from a donor to recipient cell, they serve as important vehicles facilitating cell-cell communication. Therefore, exploitation by herpesviruses impacts several aspects of infection including: i) acquisition of molecular machinery for secondary envelopment and viral assembly, ii) export of immune-related host proteins from infected cells, iii) enhancing infection in surrounding cells via transfer of viral proteins, mRNA and miRNA, and iv) regulation of viral protein expression to promote persistence. Studying the dichotomy that exists between host exosomes and herpesviruses has two benefits. Firstly, it will reveal the precise pathogenic mechanisms viruses have evolved, generating knowledge for antiviral development. Secondly, it will shed light upon fundamental exosome characteristics that remain unknown, including cargo selection, protein trafficking, and non-canonical biogenesis.
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99
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Xie H, Norman I, Hjerpe A, Vladic T, Larsson C, Lui WO, Östensson E, Andersson S. Evaluation of microRNA-205 expression as a potential triage marker for patients with low-grade squamous intraepithelial lesions. Oncol Lett 2017; 13:3586-3598. [PMID: 28529583 PMCID: PMC5431461 DOI: 10.3892/ol.2017.5909] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 01/26/2017] [Indexed: 12/16/2022] Open
Abstract
High-risk human papillomavirus (HPV) testing is a recommended triage approach for females with atypical squamous cells of undetermined significance (ASCUS), but due to its poor specificity this approach is not recommended for patients with low-grade squamous intraepithelial lesions (LSIL). The objective of the current study was to determine microRNA (miR)-205 expression levels in liquid-based cytology (LBC) samples, and evaluate their ability to predict cervical intraepithelial neoplasia grade 2/3 or worse (CIN2/3+) in females with minor cytological abnormalities. LBC samples were obtained from patients attending the Swedish Cervical Cancer Screening Program. The Mann-Whitney U test, one-way analysis of variance, Kruskal-Wallis test, Spearman rank order correlation analysis, and Pearson's χ2 test were used to assess the results. Accuracy analyses indicated that high miR-205 expression had a significantly higher specificity to high-risk HPV testing, and a sensitivity similar to that of high-risk HPV testing to predict CIN2+ and CIN3+ in women with LSIL, but not those with high-grade squamous intraepithelial lesions. Although further research is required for females with LSIL, miR-205 expression in LBC samples may be a novel triage marker for, or a beneficial supplement to high-risk-HPV testing in these patients.
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Affiliation(s)
- Hong Xie
- Tianjin Life Science Research Center and Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, P.R. China.,Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
| | - Ingrid Norman
- Department of Clinical Science, Intervention and Technology, Division of Obstetrics and Gynecology, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Anders Hjerpe
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Tomislav Vladic
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
| | - Catharina Larsson
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
| | - Weng-Onn Lui
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
| | - Ellinor Östensson
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Sonia Andersson
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
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100
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Su Z, Yang H, Zhao M, Wang Y, Deng G, Chen R. MicroRNA-92a Promotes Cell Proliferation in Cervical Cancer via Inhibiting p21 Expression and Promoting Cell Cycle Progression. Oncol Res 2017; 25:137-145. [PMID: 28081742 PMCID: PMC7840834 DOI: 10.3727/096504016x14732772150262] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
MicroRNA-92a (miR-92a) generally plays a promoting role in human cancers, but the underlying mechanism in cervical cancer remains unclear. Here we studied the expression and clinical significance of miR-92a in cervical cancer, as well as the regulatory mechanism in the proliferation of cervical cancer cells. Our data indicated that miR-92a was significantly upregulated in cervical cancer tissues compared to their matched adjacent nontumor tissues (ANTs), and the increased miR-92a levels were significantly associated with a higher grade, lymph node metastasis, and advanced clinical stage in cervical cancer. In vitro study revealed that inhibition of miR-92a led to a significant reduction in the proliferation of HeLa cells via induction of cell cycle arrest at the G1 stage. In contrast, overexpression of miR-92a markedly promoted the proliferation of HeLa cells by promoting cell cycle progression. Further investigation revealed that miR-92a has a negative effect on protein levels, but not the mRNA levels, of p21 in HeLa cells, suggesting that p21 is a direct target of miR-92a. Overexpression of p21 eliminated the promoting effects of miR-92a on the proliferation and cell cycle progression of HeLa cells. However, knockdown of p21 reversed the suppressive effects of miR-92a downregulation on HeLa cell proliferation and cell cycle progression. Moreover, p21 was significantly downregulated in cervical cancer tissues compared to ANTs, suggesting that the increased expression of miR-92a may contribute to the decreased expression of p21, which further promotes cervical cancer growth. In conclusion, our study demonstrates that miR-92a promotes the proliferation of cervical cancer cells via inhibiting p21 expression and promoting cell cycle progression, highlighting the clinical significance of miR-92a in cervical cancer.
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Affiliation(s)
- Zhiying Su
- Department of Gynecology, Xiamen Maternal and Child Health Care HospitalXiamen, FujianP.R. China
| | - Hua Yang
- Department of Obstetrics and Gynecology VIP, Xiamen Maternal and Child Health Care HospitalXiamen, FujianP.R. China
| | - Min Zhao
- Department of Gynecology and Obstetrics, First Affiliated Hospital of Xiamen UniversityXiamen, FujianP.R. China
| | - Yanlong Wang
- Department of Gynecology, Xiamen Maternal and Child Health Care HospitalXiamen, FujianP.R. China
| | - Guoyi Deng
- Department of Gynecology, Xiamen Maternal and Child Health Care HospitalXiamen, FujianP.R. China
| | - Ruixin Chen
- Department of Gynecology, Xiamen Maternal and Child Health Care HospitalXiamen, FujianP.R. China
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