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Haghtalab A, Hejazi M, Goharnia N, Yekanlou A, Hazhir K, Barghi A, Bazzaz Z, Allahverdizadeh I, GhalibafSabbaghi A. Investigating the correlation between prominent viruses and hematological malignancies: a literature review. Med Oncol 2024; 41:102. [PMID: 38546893 DOI: 10.1007/s12032-024-02345-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/23/2024] [Indexed: 04/02/2024]
Abstract
Extensive research has been conducted on the correlation between viral infections and hematological cancers ever since the identification of the Rous Sarcoma Virus as a cancer-causing agent. Numerous viruses, such as the Epstein-Barr virus, hepatitis B virus, hepatitis C virus, human immunodeficiency virus, human T-lymphotropic virus 1, and severe acute respiratory syndrome-related coronavirus 2, have been identified as potential contributors to the development and progression of cancer by disrupting normal cellular processes. Different viruses are associated with distinct forms of blood cancers, each exhibiting unique infection mechanisms, pathogenesis, and clinical symptoms. Understanding these connections is crucial for the development of effective prevention and treatment strategies. Healthcare professionals who possess a solid understanding of these associations can offer precise treatments and closely monitor potential complications in individuals with blood cancers and viral infections. By leveraging this information, healthcare providers can optimize patient care and improve outcomes for those affected by both viral infections and hematological cancers.
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Affiliation(s)
- Arian Haghtalab
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.
| | - Milad Hejazi
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Naeem Goharnia
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Ali Yekanlou
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Kousha Hazhir
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Asma Barghi
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Zahra Bazzaz
- Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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Chowdhary S, Deka R, Panda K, Kumar R, Solomon AD, Das J, Kanoujiya S, Gupta AK, Sinha S, Ruokolainen J, Kesari KK, Gupta PK. Recent Updates on Viral Oncogenesis: Available Preventive and Therapeutic Entities. Mol Pharm 2023; 20:3698-3740. [PMID: 37486263 PMCID: PMC10410670 DOI: 10.1021/acs.molpharmaceut.2c01080] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 07/25/2023]
Abstract
Human viral oncogenesis is a complex phenomenon and a major contributor to the global cancer burden. Several recent findings revealed cellular and molecular pathways that promote the development and initiation of malignancy when viruses cause an infection. Even, antiviral treatment has become an approach to eliminate the viral infections and prevent the activation of oncogenesis. Therefore, for a better understanding, the molecular pathogenesis of various oncogenic viruses like, hepatitis virus, human immunodeficiency viral (HIV), human papillomavirus (HPV), herpes simplex virus (HSV), and Epstein-Barr virus (EBV), could be explored, especially, to expand many potent antivirals that may escalate the apoptosis of infected malignant cells while sparing normal and healthy ones. Moreover, contemporary therapies, such as engineered antibodies antiviral agents targeting signaling pathways and cell biomarkers, could inhibit viral oncogenesis. This review elaborates the recent advancements in both natural and synthetic antivirals to control viral oncogenesis. The study also highlights the challenges and future perspectives of using antivirals in viral oncogenesis.
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Affiliation(s)
- Shivam Chowdhary
- Department
of Industrial Microbiology, Sam Higginbottom
University of Agriculture, Technology and Sciences, Prayagraj 211007, Uttar Pradesh India
| | - Rahul Deka
- Department
of Bioengineering and Biotechnology, Birla
Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Kingshuk Panda
- Department
of Applied Microbiology, Vellore Institute
of Technology, Vellore 632014, Tamil Nadu, India
| | - Rohit Kumar
- Department
of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Greater Noida 201310, Uttar Pradesh, India
| | - Abhishikt David Solomon
- Department
of Molecular & Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, Uttar Pradesh, India
| | - Jimli Das
- Centre
for
Biotechnology and Bioinformatics, Dibrugarh
University, Assam 786004, India
| | - Supriya Kanoujiya
- School
of
Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ashish Kumar Gupta
- Department
of Biophysics, All India Institute of Medical
Sciences, New Delhi 110029, India
| | - Somya Sinha
- Department
of Biotechnology, Graphic Era Deemed to
Be University, Dehradun 248002, Uttarakhand, India
| | - Janne Ruokolainen
- Department
of Applied Physics, School of Science, Aalto
University, 02150 Espoo, Finland
| | - Kavindra Kumar Kesari
- Department
of Applied Physics, School of Science, Aalto
University, 02150 Espoo, Finland
- Division
of Research and Development, Lovely Professional
University, Phagwara 144411, Punjab, India
| | - Piyush Kumar Gupta
- Department
of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Greater Noida 201310, Uttar Pradesh, India
- Department
of Biotechnology, Graphic Era Deemed to
Be University, Dehradun 248002, Uttarakhand, India
- Faculty
of Health and Life Sciences, INTI International
University, Nilai 71800, Malaysia
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Moore LN, Holmes DL, Sharma A, Landazuri Vinueza J, Lagunoff M. Bcl-xL is required to protect endothelial cells latently infected with KSHV from virus induced intrinsic apoptosis. PLoS Pathog 2023; 19:e1011385. [PMID: 37163552 PMCID: PMC10202281 DOI: 10.1371/journal.ppat.1011385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 05/22/2023] [Accepted: 04/24/2023] [Indexed: 05/12/2023] Open
Abstract
Kaposi's Sarcoma herpesvirus (KSHV) is the etiologic agent of Kaposi's Sarcoma (KS), a highly vascularized tumor common in AIDS patients and many countries in Africa. KSHV is predominantly in the latent state in the main KS tumor cell, the spindle cell, a cell expressing endothelial cell markers. To identify host genes important for KSHV latent infection of endothelial cells we previously used a global CRISPR/Cas9 screen to identify genes necessary for the survival or proliferation of latently infected cells. In this study we rescreened top hits and found that the highest scoring gene necessary for infected cell survival is the anti-apoptotic Bcl-2 family member Bcl-xL. Knockout of Bcl-xL or treatment with a Bcl-xL inhibitor leads to high levels of cell death in latently infected endothelial cells but not their mock counterparts. Cell death occurs through apoptosis as shown by increased PARP cleavage and activation of caspase-3/7. Knockout of the pro-apoptotic protein, Bax, eliminates the requirement for Bcl-xL. Interestingly, neither Bcl-2 nor Mcl-1, related and often redundant anti-apoptotic proteins of the Bcl-2 protein family, are necessary for the survival of latently infected endothelial cells, likely due to their lack of expression in all the endothelial cell types we have examined. Bcl-xL is not required for the survival of latently infected primary effusion lymphoma (PEL) cells or other cell types tested. Expression of the KSHV major latent locus alone in the absence of KSHV infection led to sensitivity to the absence of Bcl-xL, indicating that viral gene expression from the latent locus induces intrinsic apoptosis leading to the requirement for Bcl-xL in endothelial cells. The critical requirement of Bcl-xL during KSHV latency makes it an intriguing therapeutic target for KS tumors.
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Affiliation(s)
- Lyndsey N. Moore
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
| | - Daniel L. Holmes
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
| | - Anjali Sharma
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
| | | | - Michael Lagunoff
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
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4
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Shahrear S, Zinnia MA, Ahmed T, Islam ABMMK. Deciphering the role of predicted miRNAs of polyomaviruses in carcinogenesis. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166537. [PMID: 36089125 DOI: 10.1016/j.bbadis.2022.166537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/13/2022] [Accepted: 09/01/2022] [Indexed: 11/20/2022]
Abstract
Human polyomaviruses are relatively common in the general population. Polyomaviruses maintain a persistent infection after initial infection in childhood, acting as an opportunistic pathogen in immunocompromised populations and their association has been linked to carcinogenesis. A comprehensive understanding of the underlying molecular mechanisms of carcinogenesis in consequence of polyomavirus infection remains elusive. However, the critical role of viral miRNAs and their potential targets in modifying the transcriptome profile of the host remains largely unknown. Polyomavirus-derived miRNAs have the potential to play a substantial role in carcinogenesis. Employing computational approaches, putative viral miRNAs along with their target genes have been predicted and possible roles of the targeted genes in many significant biological processes have been obtained. Polyomaviruses have been observed to target intracellular signal transduction pathways through miRNA-mediated epigenetic regulation, which may contribute to cancer development. In addition, BKPyV-infected human renal cell microarray data was coupled with predicted target genes and analysis of the downregulated genes indicated that viruses target multiple signaling pathways (e.g. MAPK signaling pathway, PI3K-Akt signaling pathway, PPAR signaling pathway) in the host as well as turning off several tumor suppression genes (e.g. FGGY, EPHX2, CACNA2D3, CDH16) through miRNA-induced mechanisms, assuring cell transformation. This study provides a conceptual framework for the underlying molecular mechanisms involved in the course of carcinogenesis upon polyomavirus infection.
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Affiliation(s)
- Sazzad Shahrear
- Department of Genetic Engineering & Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | | | - Tasnim Ahmed
- Department of Genetic Engineering & Biotechnology, University of Dhaka, Dhaka, Bangladesh
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Wyżewski Z, Mielcarska MB, Gregorczyk-Zboroch KP, Myszka A. Virus-Mediated Inhibition of Apoptosis in the Context of EBV-Associated Diseases: Molecular Mechanisms and Therapeutic Perspectives. Int J Mol Sci 2022; 23:ijms23137265. [PMID: 35806271 PMCID: PMC9266970 DOI: 10.3390/ijms23137265] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/10/2022] Open
Abstract
Epstein-Barr virus (EBV), the representative of the Herpesviridae family, is a pathogen extensively distributed in the human population. One of its most characteristic features is the capability to establish latent infection in the host. The infected cells serve as a sanctuary for the dormant virus, and therefore their desensitization to apoptotic stimuli is part of the viral strategy for long-term survival. For this reason, EBV encodes a set of anti-apoptotic products. They may increase the viability of infected cells and enhance their resistance to chemotherapy, thereby contributing to the development of EBV-associated diseases, including Burkitt’s lymphoma (BL), Hodgkin’s lymphoma (HL), gastric cancer (GC), nasopharyngeal carcinoma (NPC) and several other malignancies. In this paper, we have described the molecular mechanism of anti-apoptotic actions of a set of EBV proteins. Moreover, we have reviewed the pro-survival role of non-coding viral transcripts: EBV-encoded small RNAs (EBERs) and microRNAs (miRNAs), in EBV-carrying malignant cells. The influence of EBV on the expression, activity and/or intracellular distribution of B-cell lymphoma 2 (Bcl-2) protein family members, has been presented. Finally, we have also discussed therapeutic perspectives of targeting viral anti-apoptotic products or their molecular partners.
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Affiliation(s)
- Zbigniew Wyżewski
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland;
- Correspondence: ; Tel.: +48-728-208-338
| | - Matylda Barbara Mielcarska
- Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland; (M.B.M.); (K.P.G.-Z.)
| | | | - Anna Myszka
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland;
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Jary A, Veyri M, Gothland A, Leducq V, Calvez V, Marcelin AG. Kaposi's Sarcoma-Associated Herpesvirus, the Etiological Agent of All Epidemiological Forms of Kaposi's Sarcoma. Cancers (Basel) 2021; 13:cancers13246208. [PMID: 34944828 PMCID: PMC8699694 DOI: 10.3390/cancers13246208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 01/08/2023] Open
Abstract
Simple Summary Kaposi’s sarcoma-associated herpesvirus (KSHV) is one of the seven oncogenic viruses currently recognized by the International Agency for Research on Cancer. Its presence for Kaposi’s sarcoma development is essential and knowledge on the oncogenic process has increased since its discovery in 1994. However, some uncertainties remain to be clarified, in particular on the exact routes of transmission and disparities in KSHV seroprevalence and the prevalence of Kaposi’s sarcoma worldwide. Here, we summarized the current data on the KSHV viral particle’s structure, its genome, the replication, its seroprevalence, the viral diversity and the lytic and latent oncogenesis proteins involved in Kaposi’s sarcoma. Lastly, we reported the environmental, immunological and viral factors possibly associated with KSHV transmission that could also play a role in the development of Kaposi’s sarcoma. Abstract Kaposi’s sarcoma-associated herpesvirus (KSHV), also called human herpesvirus 8 (HHV-8), is an oncogenic virus belonging to the Herpesviridae family. The viral particle is composed of a double-stranded DNA harboring 90 open reading frames, incorporated in an icosahedral capsid and enveloped. The viral cycle is divided in the following two states: a short lytic phase, and a latency phase that leads to a persistent infection in target cells and the expression of a small number of genes, including LANA-1, v-FLIP and v-cyclin. The seroprevalence and risk factors of infection differ around the world, and saliva seems to play a major role in viral transmission. KSHV is found in all epidemiological forms of Kaposi’s sarcoma including classic, endemic, iatrogenic, epidemic and non-epidemic forms. In a Kaposi’s sarcoma lesion, KSHV is mainly in a latent state; however, a small proportion of viral particles (<5%) are in a replicative state and are reported to be potentially involved in the proliferation of neighboring cells, suggesting they have crucial roles in the process of tumorigenesis. KSHV encodes oncogenic proteins (LANA-1, v-FLIP, v-cyclin, v-GPCR, v-IL6, v-CCL, v-MIP, v-IRF, etc.) that can modulate cellular pathways in order to induce the characteristics found in all cancer, including the inhibition of apoptosis, cells’ proliferation stimulation, angiogenesis, inflammation and immune escape, and, therefore, are involved in the development of Kaposi’s sarcoma.
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Affiliation(s)
- Aude Jary
- Service de Virologie, Hôpital Pitié-Salpêtrière, AP-HP, Institut Pierre Louis d’Épidémiologie et de Santé Publique (iPLESP), INSERM, Sorbonne Université, 75013 Paris, France; (A.G.); (V.L.); (V.C.); (A.-G.M.)
- Correspondence: ; Tel.: +33-1-4217-7401
| | - Marianne Veyri
- Service d’Oncologie Médicale, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, AP-HP, Institut Pierre Louis d’Épidémiologie et de Santé Publique (iPLESP), INSERM, Sorbonne Université, 75013 Paris, France;
| | - Adélie Gothland
- Service de Virologie, Hôpital Pitié-Salpêtrière, AP-HP, Institut Pierre Louis d’Épidémiologie et de Santé Publique (iPLESP), INSERM, Sorbonne Université, 75013 Paris, France; (A.G.); (V.L.); (V.C.); (A.-G.M.)
| | - Valentin Leducq
- Service de Virologie, Hôpital Pitié-Salpêtrière, AP-HP, Institut Pierre Louis d’Épidémiologie et de Santé Publique (iPLESP), INSERM, Sorbonne Université, 75013 Paris, France; (A.G.); (V.L.); (V.C.); (A.-G.M.)
| | - Vincent Calvez
- Service de Virologie, Hôpital Pitié-Salpêtrière, AP-HP, Institut Pierre Louis d’Épidémiologie et de Santé Publique (iPLESP), INSERM, Sorbonne Université, 75013 Paris, France; (A.G.); (V.L.); (V.C.); (A.-G.M.)
| | - Anne-Geneviève Marcelin
- Service de Virologie, Hôpital Pitié-Salpêtrière, AP-HP, Institut Pierre Louis d’Épidémiologie et de Santé Publique (iPLESP), INSERM, Sorbonne Université, 75013 Paris, France; (A.G.); (V.L.); (V.C.); (A.-G.M.)
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7
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Molecular pathogenesis of secondary bacterial infection associated to viral infections including SARS-CoV-2. J Infect Public Health 2020; 13:1397-1404. [PMID: 32712106 PMCID: PMC7359806 DOI: 10.1016/j.jiph.2020.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/11/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022] Open
Abstract
Secondary bacterial infections are commonly associated with prior or concomitant respiratory viral infections. Viral infections damage respiratory airways and simultaneously defects both innate and acquired immune response that provides a favorable environment for bacterial growth, adherence, and facilitates invasion into healthy sites of the respiratory tract. Understanding the molecular mechanism of viral-induced secondary bacterial infections will provide us a chance to develop novel and effective therapeutic approaches for disease prevention. The present study describes details about the secondary bacterial infection during viral infections and their immunological changes.The outcome of discussion avails an opportunity to understand possible secondary bacterial infections associated with novel SARS-CoV-2, presently causing pandemic outbreak COVID-19.
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8
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Talotta R, Atzeni F, Laska MJ. Retroviruses in the pathogenesis of systemic lupus erythematosus: Are they potential therapeutic targets? Autoimmunity 2020; 53:177-191. [PMID: 32321325 DOI: 10.1080/08916934.2020.1755962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The pathogenesis of systemic lupus erythematosus (SLE) is characterised by the hyper-activation of immunologic pathways related to the antiviral response. Exogenous and endogenous retroviruses, by integrating their DNA templates in the host cell genome, may epigenetically control the transcription of genes involved in the immune response. Furthermore, their nucleic acids or neo-synthesized proteins could stimulate the sensor molecules placed upstream the inflammatory cascade. Exogenous retroviruses, like human immunodeficiency virus, have been associated to SLE-like manifestations or to a fair SLE diagnosis. In addition, there is some evidence confirming a pathogenic role of human endogenous retroviruses in SLE. In line with these data, the use of antiretroviral agents could represent an attractive opportunity in the future therapeutic algorithms of this disease, but studies are still missing.
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Affiliation(s)
- Rossella Talotta
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University Hospital "Gaetano Martino", Messina, Italy
| | - Fabiola Atzeni
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University Hospital "Gaetano Martino", Messina, Italy
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9
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Shafabakhsh R, Reiter RJ, Mirzaei H, Teymoordash SN, Asemi Z. Melatonin: A new inhibitor agent for cervical cancer treatment. J Cell Physiol 2019; 234:21670-21682. [PMID: 31131897 DOI: 10.1002/jcp.28865] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 12/15/2022]
Abstract
Cervical cancer is one of the most common cancers between women and is known as the third leading cause of female cancer related deaths annually. Its detection in early stages allows it to be a preventable and generally treatable disease. Increasing evidence revealed, a variety of internal and external factors are associated with initiation and progression of cervical cancer pathogenesis. Human papilloma virus infection is found as a major cause of cervical cancer. Other molecular and biochemical alterations as well as genetic and epigenetic changes are related cervical cancer progression. Current treatment options often have severe side effects and toxicities thus, new adjuvant agents having synergistic effects and ability to decrease different side effects and toxicities are needed. Melatonin is an indolamine compound secreted from the pineal gland which shows wide range anticancer activities. A large amount of studies indicated inhibitory effects of melatonin against various types of cancers. In addition, experimental evidence reports inhibitory effects of melatonin as an adjuvant therapy on cervical cancer by targeting a sequence of different molecular mechanisms. Herein, for first time, we summarized anticervical cancer effects of melatonin and its underlying molecular mechanisms.
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Affiliation(s)
- Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science, Center, San Antonio, Texas
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Somayyeh Noei Teymoordash
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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10
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Intratype variants of the E2 protein from human papillomavirus type 18 induce different gene expression profiles associated with apoptosis and cell proliferation. Arch Virol 2019; 164:1815-1827. [DOI: 10.1007/s00705-018-04124-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 11/21/2018] [Indexed: 11/30/2022]
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Emerging Proviral Roles of Caspases during Lytic Replication of Gammaherpesviruses. J Virol 2018; 92:JVI.01011-17. [PMID: 30021896 DOI: 10.1128/jvi.01011-17] [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] [Indexed: 12/15/2022] Open
Abstract
Due to their roles in the regulation of programmed cell death and inflammation, the cellular caspase proteases are considered antiviral factors. However, recent studies have revealed examples of proviral functions for caspases. Here, we review a growing body of literature on the role of caspases in promoting the replication of human gammaherpesviruses. We propose that gammaherpesviruses have evolved ways to redirect these enzymes and to use their activation to support viral replication and immune evasion.
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12
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Rinaldi M, Johann ACBR, Bettega PVC, Rocha F, Ignácio SA, Rosa EAR, Alanis LRA, Althobaiti Y, Sapelli SDS, Hardy AMTG. The apoptotic effect of midazolam on the salivary gland of rats and the reversal effect by pilocarpine. Can J Physiol Pharmacol 2018; 96:898-901. [PMID: 29847736 DOI: 10.1139/cjpp-2018-0076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
To evaluate the apoptosis in parotid glands of rats treated with midazolam associated or not with pilocarpine, 60 Wistar rats were assigned to 6 groups: control groups received saline solution for 30 days (S30) and 60 days (S60) and the other groups received pilocarpine for 60 days (P60), midazolam for 30 days (M30), midazolam for 30 days and 30 days of saline (M30 + S30), and finally midazolam for 30 days and 30 days of midazolam and pilocarpine (M30 + MP30). Histological sections were subjected to the TdT-mediated dUTP-biotin nick and labeling technique. The number of positive and negative cells was quantified, calculating the apoptotic index. ANOVA at 2 criteria and Tukey's test were used. A greater apoptotic index was observed in the M30 (52.79 ± 9.01) and M30 + S30 (62.43 ± 8.52) groups when compared with the S30 (37.94 ± 5.94) and S60 (31.85 ± 9.18) groups, respectively (p < 0.05). There was no difference between M30 + MP30 (30.98 ± 6.19) and S60 (31.85 ± 9.18) groups regarding apoptotic index. Chronic administration of midazolam has been shown to increase the number of apoptotic cells in the parotid glands of rats. However, pilocarpine inhibited this effect, thus inhibiting the apoptosis.
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Affiliation(s)
- Mariana Rinaldi
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Aline Cristina Batista Rodrigues Johann
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Patrícia Vida Cassi Bettega
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Fábio Rocha
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Sérgio Aparecido Ignácio
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Edvaldo Antônio Ribeiro Rosa
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Luciana Reis Azevedo Alanis
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Yusuf Althobaiti
- b Department of Pharmacology and Toxicology, College of Pharmacy, Health Science Campus, Taif University, Airport Road, Al Hawiyah, Al Hawiyah, Taif 26571, Saudia Arabia
| | - Silvana da Silva Sapelli
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
| | - Ana Maria Trindade Grégio Hardy
- a Graduate Program, Dentistry Course, Life Sciences School, Catholic University of Paraná, Curitiba, Brazil. Rua Imaculada Conceição, 1155, Prado Velho 80.215-901, Curitiba, PR, Brazil
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13
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Caspase-Dependent Suppression of Type I Interferon Signaling Promotes Kaposi's Sarcoma-Associated Herpesvirus Lytic Replication. J Virol 2018. [PMID: 29514903 DOI: 10.1128/jvi.00078-18] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
An important component of lytic infection by Kaposi's sarcoma-associated herpesvirus (KSHV) is the ability of the virus to evade the innate immune response, specifically type I interferon (IFN) responses that are triggered by recognition of viral nucleic acids. Inhibition of type I IFN responses by the virus promotes viral replication. Here, we report that KSHV uses a caspase-dependent mechanism to block type I IFN, in particular IFN-β, responses during lytic infection. Inhibition of caspases during KSHV reactivation resulted in increased TBK1/IKKε-dependent phosphorylation of IRF3 as well as elevated levels of IFN-β transcription and secretion. The increased secretion of IFN-β upon caspase inhibition reduced viral gene expression, viral DNA replication, and virus production. Blocking IFN-β production or signaling restored viral replication. Overall, our results show that caspase-mediated regulation of pathogen sensing machinery is an important mechanism exploited by KSHV to evade innate immune responses.IMPORTANCE KSHV is the causative agent of Kaposi's sarcoma (KS), an AIDS-defining tumor that is one of the most common causes of cancer death in sub-Saharan Africa. In this study, we examined the role of a set of cellular proteases, called caspases, in the regulation of immune responses during KSHV infection. We demonstrate that caspases prevent the induction and secretion of the antiviral factor IFN-β during replicative KSHV infection. The reduced IFN-β production allows for high viral gene expression and viral replication. Therefore, caspases are important for maintaining KSHV replication. Overall, our results suggest that KSHV utilizes caspases to evade innate immune responses, and that inhibiting caspases could boost the innate immune response to this pathogen and potentially be a new antiviral strategy.
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Lagunas-Martínez A, García-Villa E, Arellano-Gaytán M, Contreras-Ochoa CO, Dimas-González J, López-Arellano ME, Madrid-Marina V, Gariglio P. MG132 plus apoptosis antigen-1 (APO-1) antibody cooperate to restore p53 activity inducing autophagy and p53-dependent apoptosis in HPV16 E6-expressing keratinocytes. Apoptosis 2018; 22:27-40. [PMID: 27766434 DOI: 10.1007/s10495-016-1299-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The E6 oncoprotein can interfere with the ability of infected cells to undergo programmed cell death through the proteolytic degradation of proapoptotic proteins such as p53, employing the proteasome pathway. Therefore, inactivation of the proteasome through MG132 should restore the activity of several proapoptotic proteins. We investigated whether in HPV16 E6-expressing keratinocytes (KE6 cells), the restoration of p53 levels mediated by MG132 and/or activation of the CD95 pathway through apoptosis antigen-1 (APO-1) antibody are responsible for the induction of apoptosis. We found that KE6 cells underwent apoptosis mainly after incubation for 24 h with MG132 alone or APO-1 plus MG132. Both treatments activated the extrinsic and intrinsic apoptosis pathways. Autophagy was also activated, principally by APO-1 plus MG132. Inhibition of E6-mediated p53 proteasomal degradation by MG132 resulted in the elevation of p53 protein levels and its phosphorylation in Ser46 and Ser20; the p53 protein was localized mainly at nucleus after treatment with MG132 or APO-1 plus MG132. In addition, induction of its transcriptional target genes such as p21, Bax and TP53INP was observed 3 and 6 h after treatment. Also, LC3 mRNA was induced after 3 and 6 h, which correlates with lipidation of LC3B protein and induction of autophagy. Finally, using pifithrin alpha we observed a decrease in apoptosis induced by MG132, and by APO-1 plus MG132, suggesting that restoration of APO-1 sensitivity occurs in part through an increase in both the levels and the activity of p53. The use of small molecules to inhibit the proteasome pathway might permit the activation of cell death, providing new opportunities for CC treatment.
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Affiliation(s)
- Alfredo Lagunas-Martínez
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Enrique García-Villa
- Departamento de Genética y Biología Molecular, CINVESTAV-IPN, Av. IPN 2508 Col. San Pedro Zacatenco. C. P. 07360, Mexico City, Mexico
| | - Magaly Arellano-Gaytán
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Carla O Contreras-Ochoa
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | | | - María E López-Arellano
- Centro Nacional de Investigación Disciplinaria en Parasitología Veterinaria, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Jiutepec, Morelos, Mexico
| | - Vicente Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Patricio Gariglio
- Departamento de Genética y Biología Molecular, CINVESTAV-IPN, Av. IPN 2508 Col. San Pedro Zacatenco. C. P. 07360, Mexico City, Mexico.
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15
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Yakkioui Y, Speel EJM, Van Overbeeke JJ, Boderie MJM, Pujari S, Hausen AZ, Wolffs PFG, Temel Y. Oncogenic Viruses in Skull Base Chordomas. World Neurosurg 2017; 112:e7-e13. [PMID: 29191533 DOI: 10.1016/j.wneu.2017.11.117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/19/2017] [Accepted: 11/22/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND Chordomas are rare tumors assumed to derive from notochordal remnants. We believe that a molecular switch is responsible for their malignant behavior. The involvement of oncogenic viruses has not been studied, however. Thus, in the present study, we investigated the presence of oncogenic viruses in chordomas. METHODS DNA and RNA from snap-frozen chordoma (n = 18) and chondrosarcoma (n = 15) specimens were isolated. Real-time PCR or RT-PCR was performed to assess the presence of multiple oncogenic viruses, including herpesviridea (herpes simplex virus [HSV]-1, HSV-2, Epstein-Barr virus [EBV], cytomegalovirus, human herpesvirus [HHV]- 6, HHV-7, and Kaposi's sarcoma-associated herpesvirus), polyomaviridea (parvovirus B19 [PVB19], BK virus, JC virus, Simian virus 40, Merkel cell polyomavirus, human polyomavirus [HPyV]-6, and HPyV-7), papillomaviridae, and respiratory viruses. Immunohistochemistry (IHC) and in situ hybridization (ISH) were used to validate the positive results. RESULTS PVB19 DNA was detected in 4 of 18 chordomas (22%) and in 1 of 15 chondrosarcomas (7%). IHC recognizing the VP2 capsid protein of PVB19 showed a positive cytoplasmic staining in 44% of the cases (14 of 32). HHV7 DNA was present in 6 of the 18 chordomas (33%). Genomic DNA of EBV was found in 22% of the samples; however, no positive results were found on ISH. None of the chordoma cases showed any presence of DNA from the remaining viruses. CONCLUSIONS Viral involvement in the etiology of chordomas is likely, with PVB19 the most distinguishing.
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Affiliation(s)
- Youssef Yakkioui
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Division of Experimental Neurosurgery, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.
| | - Ernst-Jan M Speel
- Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands; School of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Jacobus J Van Overbeeke
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Division of Experimental Neurosurgery, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Merel J M Boderie
- Infectious Diseases Division, Department of Internal Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Sreedhar Pujari
- Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands; School of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Axel Zur Hausen
- Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands; School of Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Petra F G Wolffs
- Department of Medical Microbiology and Virology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Yasin Temel
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Division of Experimental Neurosurgery, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
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16
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Nainu F, Shiratsuchi A, Nakanishi Y. Induction of Apoptosis and Subsequent Phagocytosis of Virus-Infected Cells As an Antiviral Mechanism. Front Immunol 2017; 8:1220. [PMID: 29033939 PMCID: PMC5624992 DOI: 10.3389/fimmu.2017.01220] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 09/14/2017] [Indexed: 01/14/2023] Open
Abstract
Viruses are infectious entities that hijack host replication machineries to produce their progeny, resulting, in most cases, in disease and, sometimes, in death in infected host organisms. Hosts are equipped with an array of defense mechanisms that span from innate to adaptive as well as from humoral to cellular immune responses. We previously demonstrated that mouse cells underwent apoptosis in response to influenza virus infection. These apoptotic, virus-infected cells were then targeted for engulfment by macrophages and neutrophils. We more recently reported similar findings in the fruit fly Drosophila melanogaster, which lacks adaptive immunity, after an infection with Drosophila C virus. In these experiments, the inhibition of phagocytosis led to severe influenza pathologies in mice and early death in Drosophila. Therefore, the induction of apoptosis and subsequent phagocytosis of virus-infected cells appear to be an antiviral innate immune mechanism that is conserved among multicellular organisms. We herein discuss the underlying mechanisms and significance of the apoptosis-dependent phagocytosis of virus-infected cells. Investigations on the molecular and cellular features responsible for this underrepresented virus–host interaction may provide a promising avenue for the discovery of novel substances that are targeted in medical treatments against virus-induced intractable diseases.
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Affiliation(s)
- Firzan Nainu
- Laboratory of Pharmacology and Toxicology, Faculty of Pharmacy, Hasanuddin University, Makassar, Indonesia.,Laboratory of Host Defense and Responses, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Akiko Shiratsuchi
- Laboratory of Host Defense and Responses, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yoshinobu Nakanishi
- Laboratory of Host Defense and Responses, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
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17
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Boiko NV, Panchenko SN. [The detection of the human papilloma virus during hyperplastic processes in the nose, ears and throat]. Vestn Otorinolaringol 2017; 82:51-54. [PMID: 28514365 DOI: 10.17116/otorino201782251-54] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The objective of the present work was to carry out the virological and histological studies of various neoplastic and hyperplastic processes in the nose, ears, and throat with a view to identifying the presence of human papilloma virus and Epstein-Barr virus. The brush biopsies and remote neoplasms obtained from 18 patients (including 2 children and 16 adults) presenting with various ENT diseases and tumours were available for the virological investigation with the use of the polymerase chain reaction (PCR) and a system MY09-MY11 degenerate primers . The histological study of biopsies and remote neoplasms was carried out by means of conventional light microscopy. The virological and histological studies conducted in parallel confirmed the diagnostic significance of morphological changes at the tissue and cellular levels caused by the human papilloma virus.
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Affiliation(s)
- N V Boiko
- Rostov State Medical University, Russian Ministry of Health, Rostov-on-Don, Russia, 344006
| | - S N Panchenko
- Rostov State Medical University, Russian Ministry of Health, Rostov-on-Don, Russia, 344006
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18
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Ma W, Tummers B, van Esch EMG, Goedemans R, Melief CJM, Meyers C, Boer JM, van der Burg SH. Human Papillomavirus Downregulates the Expression of IFITM1 and RIPK3 to Escape from IFNγ- and TNFα-Mediated Antiproliferative Effects and Necroptosis. Front Immunol 2016; 7:496. [PMID: 27920775 PMCID: PMC5118436 DOI: 10.3389/fimmu.2016.00496] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/26/2016] [Indexed: 01/29/2023] Open
Abstract
The clearance of a high-risk human papillomavirus (hrHPV) infection takes time and requires the local presence of a strong type 1 cytokine T cell response, suggesting that hrHPV has evolved mechanisms to resist this immune attack. Using an unique system for non, newly, and persistent hrHPV infection, we show that hrHPV infection renders keratinocytes (KCs) resistant to the antiproliferative- and necroptosis-inducing effects of IFNγ and TNFα. HrHPV-impaired necroptosis was associated with the upregulation of several methyltransferases, including EZH2, and the downregulation of RIPK3 expression. Restoration of RIPK3 expression using the global histone methyltransferase inhibitor 3-deazaneplanocin increased necroptosis in hrHPV-positive KCs. Simultaneously, hrHPV effectively inhibited IFNγ/TNFα-mediated arrest of cell growth at the S-phase by downregulating IFITM1 already at 48 h after hrHPV infection, followed by an impaired increase in the expression of the antiproliferative gene RARRES1 and a decrease of the proliferative gene PCNA. Knockdown of IFITM1 in uninfected KCs confirmed its role on RARRES1 and its antiproliferative effects. Thus, our study reveals how hrHPV deregulates two pathways involved in cell death and growth regulation to withstand immune-mediated control of hrHPV-infected cells.
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Affiliation(s)
- Wenbo Ma
- Department of Medical Oncology, Leiden University Medical Center , Leiden , Netherlands
| | - Bart Tummers
- Department of Medical Oncology, Leiden University Medical Center , Leiden , Netherlands
| | - Edith M G van Esch
- Department of Gynaecology, Leiden University Medical Center , Leiden , Netherlands
| | - Renske Goedemans
- Department of Medical Oncology, Leiden University Medical Center , Leiden , Netherlands
| | - Cornelis J M Melief
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center , Leiden , Netherlands
| | - Craig Meyers
- Department of Microbiology and Immunology, The Pennsylvania State University College of Medicine , Hershey, PA , USA
| | - Judith M Boer
- Human Genetics, Leiden University Medical Center , Leiden , Netherlands
| | - Sjoerd H van der Burg
- Department of Medical Oncology, Leiden University Medical Center , Leiden , Netherlands
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Akram N, Imran M, Noreen M, Ahmed F, Atif M, Fatima Z, Bilal Waqar A. Oncogenic Role of Tumor Viruses in Humans. Viral Immunol 2016; 30:20-27. [PMID: 27830995 DOI: 10.1089/vim.2016.0109] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Viruses are the intracellular pathogens that reproduce only in the living cell and manipulate the cellular machinery to produce more viruses. Viral replications can affect cellular genes of the host in multiple cancerous ways. Approximately, 20% of all human oncogenesis is caused by cancer-causing viruses known as oncoviruses. Viral infection causes chronic inflammation leading to cell death, uncontrollable proliferation, and modulated expression of some of the regulatory proteins. Oncogenesis is a multistep phenomenon in which normal host cells are transformed into cancerous cells on the basis of host genetic variability. Oncogenic viruses encode genes that cause viral replication and transformation of the host cells to produce viral proteins and protein complexes. The phenomenon from basic viral infection to tumorigenesis is lengthy due to the involvement of factors like immunity complications, cellular mutations, and exposure to other cancerous agents. The viruses that are involved in human cancer development are Hepatitis B virus (HBV), Hepatitis C virus (HCV), Epstein-Barr virus (EBV), Human papilloma virus (HPV), Kaposi's sarcoma herpes virus (KSHV), and Human T lymphotrophic virus 1 (HTLV-1). This review article summarizes advanced knowledge related to human oncogenic viruses and the molecular mechanisms that lead to tumorigenesis in humans.
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Affiliation(s)
- Nimrah Akram
- 1 Department of Medical Laboratory Sciences (DMLS), Faculty of Health and Allied Sciences (FHAS), Imperial College of Business Studies (ICBS) , Lahore, Pakistan
| | - Muhammad Imran
- 1 Department of Medical Laboratory Sciences (DMLS), Faculty of Health and Allied Sciences (FHAS), Imperial College of Business Studies (ICBS) , Lahore, Pakistan
| | - Mamoona Noreen
- 2 Department of Zoology, The Women University Multan , Multan, Pakistan
| | - Fayyaz Ahmed
- 1 Department of Medical Laboratory Sciences (DMLS), Faculty of Health and Allied Sciences (FHAS), Imperial College of Business Studies (ICBS) , Lahore, Pakistan
| | - Muhammad Atif
- 1 Department of Medical Laboratory Sciences (DMLS), Faculty of Health and Allied Sciences (FHAS), Imperial College of Business Studies (ICBS) , Lahore, Pakistan
| | - Zareen Fatima
- 3 Department of Radiological Sciences and Medical Imaging (DRSMI) , FHAS, ICBS, Lahore, Pakistan
| | - Ahmed Bilal Waqar
- 1 Department of Medical Laboratory Sciences (DMLS), Faculty of Health and Allied Sciences (FHAS), Imperial College of Business Studies (ICBS) , Lahore, Pakistan
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Nonstructural 3 Protein of Hepatitis C Virus Modulates the Tribbles Homolog 3/Akt Signaling Pathway for Persistent Viral Infection. J Virol 2016; 90:7231-7247. [PMID: 27252525 DOI: 10.1128/jvi.00326-16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 05/24/2016] [Indexed: 12/14/2022] Open
Abstract
UNLABELLED Hepatitis C virus (HCV) infection often causes chronic hepatitis, liver cirrhosis, and ultimately hepatocellular carcinoma. However, the mechanisms underlying HCV-induced liver pathogenesis are still not fully understood. By transcriptome sequencing (RNA-Seq) analysis, we recently identified host genes that were significantly differentially expressed in cell culture-grown HCV (HCVcc)-infected cells. Of these, tribbles homolog 3 (TRIB3) was selected for further characterization. TRIB3 was initially identified as a binding partner of protein kinase B (also known as Akt). TRIB3 blocks the phosphorylation of Akt and induces apoptosis under endoplasmic reticulum (ER) stress conditions. HCV has been shown to enhance Akt phosphorylation for its own propagation. In the present study, we demonstrated that both mRNA and protein levels of TRIB3 were increased in the context of HCV replication. We further showed that promoter activity of TRIB3 was increased by HCV-induced ER stress. Silencing of TRIB3 resulted in increased RNA and protein levels of HCV, whereas overexpression of TRIB3 decreased HCV replication. By employing an HCV pseudoparticle entry assay, we further showed that TRIB3 was a negative host factor involved in HCV entry. Both in vitro binding and immunoprecipitation assays demonstrated that HCV NS3 specifically interacted with TRIB3. Consequently, the association of TRIB3 and Akt was disrupted by HCV NS3, and thus, TRIB3-Akt signaling was impaired in HCV-infected cells. Moreover, HCV modulated TRIB3 to promote extracellular signal-regulated kinase (ERK) phosphorylation, activator protein 1 (AP-1) activity, and cell migration. Collectively, these data indicate that HCV exploits the TRIB3-Akt signaling pathway to promote persistent viral infection and may contribute to HCV-mediated pathogenesis. IMPORTANCE TRIB3 is a pseudokinase protein that acts as an adaptor in signaling pathways for important cellular processes. So far, the functional involvement of TRIB3 in virus-infected cells has not yet been demonstrated. We showed that both mRNA and protein expression levels of TRIB3 were increased in the context of HCV RNA replication. Gene silencing of TRIB3 increased HCV RNA and protein levels, and thus, overexpression of TRIB3 decreased HCV replication. TRIB3 is known to promote apoptosis by negatively regulating the Akt signaling pathway under ER stress conditions. Most importantly, we demonstrated that the TRIB3-Akt signaling pathway was disrupted by NS3 in HCV-infected cells. These data provide evidence that HCV modulates the TRIB3-Akt signaling pathway to establish persistent viral infection.
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Banerjee S, Uppal T, Strahan R, Dabral P, Verma SC. The Modulation of Apoptotic Pathways by Gammaherpesviruses. Front Microbiol 2016; 7:585. [PMID: 27199919 PMCID: PMC4847483 DOI: 10.3389/fmicb.2016.00585] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 04/11/2016] [Indexed: 12/11/2022] Open
Abstract
Apoptosis or programmed cell death is a tightly regulated process fundamental for cellular development and elimination of damaged or infected cells during the maintenance of cellular homeostasis. It is also an important cellular defense mechanism against viral invasion. In many instances, abnormal regulation of apoptosis has been associated with a number of diseases, including cancer development. Following infection of host cells, persistent and oncogenic viruses such as the members of the Gammaherpesvirus family employ a number of different mechanisms to avoid the host cell’s “burglar” alarm and to alter the extrinsic and intrinsic apoptotic pathways by either deregulating the expressions of cellular signaling genes or by encoding the viral homologs of cellular genes. In this review, we summarize the recent findings on how gammaherpesviruses inhibit cellular apoptosis via virus-encoded proteins by mediating modification of numerous signal transduction pathways. We also list the key viral anti-apoptotic proteins that could be exploited as effective targets for novel antiviral therapies in order to stimulate apoptosis in different types of cancer cells.
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Affiliation(s)
- Shuvomoy Banerjee
- Amity Institute of Virology and Immunology, Amity University Noida, India
| | - Timsy Uppal
- Department of Microbiology and Immunology, Center for Molecular Medicine, School of Medicine, University of Nevada, Reno Reno, NV, USA
| | - Roxanne Strahan
- Department of Microbiology and Immunology, Center for Molecular Medicine, School of Medicine, University of Nevada, Reno Reno, NV, USA
| | - Prerna Dabral
- Department of Microbiology and Immunology, Center for Molecular Medicine, School of Medicine, University of Nevada, Reno Reno, NV, USA
| | - Subhash C Verma
- Department of Microbiology and Immunology, Center for Molecular Medicine, School of Medicine, University of Nevada, Reno Reno, NV, USA
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Pinidis P, Tsikouras P, Iatrakis G, Zervoudis S, Koukouli Z, Bothou A, Galazios G, Vladareanu S. Human Papilloma Virus' Life Cycle and Carcinogenesis. MAEDICA 2016; 11:48-54. [PMID: 28465751 PMCID: PMC5394500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
RATIONALE Considering that the loss of cell cycle and apoptosis control constitutes a central event in human papilloma virus' (HPV)-mediated carcinogenesis, the reason of this study is to insight to the HPV life cycle. OBJECTIVE The purpose of the study is to analyze the HPV molecular biology and cervical cancer association. METHODS AND RESULTS Brief review of current literature on the HPV life cycle and cervical carcinogenesis. DISCUSSION Among the HPV associated cancers, cervical cancer still ranks number two in the global cancer incidence of women. A central component of the association between HPV and cervical carcinogenesis is the ability of HPV to persist in the lower genital tract for long periods of time without being cleared because of its evasion mechanisms.
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Affiliation(s)
- Petros Pinidis
- Department of Obstetrics and Gynecology, Democritus University of Thrace, Greece
| | - Panagiotis Tsikouras
- Department of Obstetrics and Gynecology, Democritus University of Thrace, Greece
| | | | | | - Zacharoula Koukouli
- Department of Obstetrics and Gynecology, Democritus University of Thrace, Greece
| | | | - Georgios Galazios
- Department of Obstetrics and Gynecology, Democritus University of Thrace, Greece
| | - Simona Vladareanu
- "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
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23
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Jha HC, Banerjee S, Robertson ES. The Role of Gammaherpesviruses in Cancer Pathogenesis. Pathogens 2016; 5:pathogens5010018. [PMID: 26861404 PMCID: PMC4810139 DOI: 10.3390/pathogens5010018] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 01/27/2016] [Indexed: 12/15/2022] Open
Abstract
Worldwide, one fifth of cancers in the population are associated with viral infections. Among them, gammaherpesvirus, specifically HHV4 (EBV) and HHV8 (KSHV), are two oncogenic viral agents associated with a large number of human malignancies. In this review, we summarize the current understanding of the molecular mechanisms related to EBV and KSHV infection and their ability to induce cellular transformation. We describe their strategies for manipulating major cellular systems through the utilization of cell cycle, apoptosis, immune modulation, epigenetic modification, and altered signal transduction pathways, including NF-kB, Notch, Wnt, MAPK, TLR, etc. We also discuss the important EBV latent antigens, namely EBNA1, EBNA2, EBNA3’s and LMP’s, which are important for targeting these major cellular pathways. KSHV infection progresses through the engagement of the activities of the major latent proteins LANA, v-FLIP and v-Cyclin, and the lytic replication and transcription activator (RTA). This review is a current, comprehensive approach that describes an in-depth understanding of gammaherpes viral encoded gene manipulation of the host system through targeting important biological processes in viral-associated cancers.
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Affiliation(s)
- Hem Chandra Jha
- Department of Microbiology and Tumor Virology Program, Abramson Comprehensive Cancer Center, Perelman School of Medicine at the University of Pennsylvania, 201E Johnson Pavilion, 3610, Hamilton Walk, Philadelphia, PA 19104, USA.
| | - Shuvomoy Banerjee
- Department of Microbiology and Tumor Virology Program, Abramson Comprehensive Cancer Center, Perelman School of Medicine at the University of Pennsylvania, 201E Johnson Pavilion, 3610, Hamilton Walk, Philadelphia, PA 19104, USA.
| | - Erle S Robertson
- Department of Microbiology and Tumor Virology Program, Abramson Comprehensive Cancer Center, Perelman School of Medicine at the University of Pennsylvania, 201E Johnson Pavilion, 3610, Hamilton Walk, Philadelphia, PA 19104, USA.
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Stamatiou DP, Derdas SP, Zoras OL, Spandidos DA. Herpes and polyoma family viruses in thyroid cancer. Oncol Lett 2016; 11:1635-1644. [PMID: 26998055 PMCID: PMC4774504 DOI: 10.3892/ol.2016.4144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 01/26/2016] [Indexed: 02/06/2023] Open
Abstract
Thyroid cancer is considered the most common malignancy that affects the endocrine system. Generally, thyroid cancer derives from follicular epithelial cells, and thyroid cancer is divided into well-differentiated papillary (80% of cases) and follicular (15% of cases) carcinoma. Follicular thyroid cancer is further divided into the conventional and oncocytic (Hürthle cell) type, poorly differentiated carcinoma and anaplastic carcinoma. Both poorly differentiated and anaplastic carcinoma can arise either de novo, or secondarily from papillary and follicular thyroid cancer. The incidence of thyroid cancer has significantly increased for both males and females of all ages, particularly for females between 55–64 years of age, from 1999 through 2008. The increased rates refer to tumors of all stages, though they were mostly noted in localized disease. Recently, viruses have been implicated in the direct regulation of epithelial-mesenchymal transition (EMT) and the development of metastases. More specifically, Epstein-Barr virus (EBV) proteins may potentially lead to the development of metastasis through the regulation of the metastasis suppressor, Nm23, and the control of Twist expression. The significant enhancement of the metastatic potential, through the induction of angiogenesis and changes to the tumor microenvironment, subsequent to viral infection, has been documented, while EMT also contributes to cancer cell permissiveness to viruses. A number of viruses have been identified to be associated with carcinogenesis, and these include lymphotropic herpesviruses, namely EBV and Kaposi's sarcoma-associated herpesvirus [KSHV, also known as human herpesvirus type 8 (HHV8)]; two hepatitis viruses, hepatitis B virus (HBV) and hepatitis C virus (HCV); human papillomaviruses (HPVs); human T cell lymphoma virus (HTLV); and a new polyomavirus, Merkel cell polyomavirus identified in 2008. In this review, we examined the association between thyroid cancer and two oncogenic virus families, the herpes and polyoma family viruses, and we discuss their potential role as causative agents in thyroid carcinogenesis.
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Affiliation(s)
- Dimitris P Stamatiou
- Department of Surgical Oncology, University Hospital, University of Crete, Heraklion 71003, Greece; Laboratory of Clinical Virology, University of Crete, Medical School, Heraklion 71409, Greece
| | - Stavros P Derdas
- Laboratory of Clinical Virology, University of Crete, Medical School, Heraklion 71409, Greece
| | - Odysseas L Zoras
- Department of Surgical Oncology, University Hospital, University of Crete, Heraklion 71003, Greece
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, University of Crete, Medical School, Heraklion 71409, Greece
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Sobhy H. A Review of Functional Motifs Utilized by Viruses. Proteomes 2016; 4:proteomes4010003. [PMID: 28248213 PMCID: PMC5217368 DOI: 10.3390/proteomes4010003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 01/07/2016] [Accepted: 01/13/2016] [Indexed: 01/05/2023] Open
Abstract
Short linear motifs (SLiM) are short peptides that facilitate protein function and protein-protein interactions. Viruses utilize these motifs to enter into the host, interact with cellular proteins, or egress from host cells. Studying functional motifs may help to predict protein characteristics, interactions, or the putative cellular role of a protein. In virology, it may reveal aspects of the virus tropism and help find antiviral therapeutics. This review highlights the recent understanding of functional motifs utilized by viruses. Special attention was paid to the function of proteins harboring these motifs, and viruses encoding these proteins. The review highlights motifs involved in (i) immune response and post-translational modifications (e.g., ubiquitylation, SUMOylation or ISGylation); (ii) virus-host cell interactions, including virus attachment, entry, fusion, egress and nuclear trafficking; (iii) virulence and antiviral activities; (iv) virion structure; and (v) low-complexity regions (LCRs) or motifs enriched with residues (Xaa-rich motifs).
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Affiliation(s)
- Haitham Sobhy
- Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden.
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26
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Saik OV, Ivanisenko TV, Demenkov PS, Ivanisenko VA. Interactome of the hepatitis C virus: Literature mining with ANDSystem. Virus Res 2015; 218:40-8. [PMID: 26673098 DOI: 10.1016/j.virusres.2015.12.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/22/2015] [Accepted: 12/03/2015] [Indexed: 12/19/2022]
Abstract
A study of the molecular genetics mechanisms of host-pathogen interactions is of paramount importance in developing drugs against viral diseases. Currently, the literature contains a huge amount of information that describes interactions between HCV and human proteins. In addition, there are many factual databases that contain experimentally verified data on HCV-host interactions. The sources of such data are the original data along with the data manually extracted from the literature. However, the manual analysis of scientific publications is time consuming and, because of this, databases created with such an approach often do not have complete information. One of the most promising methods to provide actualisation and completeness of information is text mining. Here, with the use of a previously developed method by the authors using ANDSystem, an automated extraction of information on the interactions between HCV and human proteins was conducted. As a data source for the text mining approach, PubMed abstracts and full text articles were used. Additionally, external factual databases were analyzed. On the basis of this analysis, a special version of ANDSystem, extended with the HCV interactome, was created. The HCV interactome contains information about the interactions between 969 human and 11 HCV proteins. Among the 969 proteins, 153 'new' proteins were found not previously referred to in any external databases of protein-protein interactions for HCV-host interactions. Thus, the extended ANDSystem possesses a more comprehensive detailing of HCV-host interactions versus other existing databases. It was interesting that HCV proteins more preferably interact with human proteins that were already involved in a large number of protein-protein interactions as well as those associated with many diseases. Among human proteins of the HCV interactome, there were a large number of proteins regulated by microRNAs. It turned out that the results obtained for protein-protein interactions and microRNA-regulation did not depend on how well the proteins were studied, while protein-disease interactions appeared to be dependent on the level of study. In particular, the mean number of diseases linked to well-studied proteins (proteins were considered well-studied if they were mentioned in 50 or more PubMed publications) from the HCV interactome was 20.8, significantly exceeding the mean number of associations with diseases (10.1) for the total set of well-studied human proteins present in ANDSystem. For proteins not highly poorly-studied investigated, proteins from the HCV interactome (each protein was referred to in less than 50 publications) distribution of the number of diseases associated with them had no statistically significant differences from the distribution of the number of diseases associated with poorly-studied proteins based on the total set of human proteins stored in ANDSystem. With this, the average number of associations with diseases for the HCV interactome and the total set of human proteins were 0.3 and 0.2, respectively. Thus, ANDSystem, extended with the HCV interactome, can be helpful in a wide range of issues related to analyzing HCV-host interactions in the search for anti-HCV drug targets. The demo version of the extended ANDSystem covered here containing only interactions between human proteins, genes, metabolites, diseases, miRNAs and molecular-genetic pathways, as well as interactions between human proteins/genes and HCV proteins, is freely available at the following web address: http://www-bionet.sscc.ru/psd/andhcv/.
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Affiliation(s)
- Olga V Saik
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia; PB-soft, LLC, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia.
| | - Timofey V Ivanisenko
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia; PB-soft, LLC, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia; Novosibirsk State University, Pirogova Str. 2, 630090 Novosibirsk, Russia.
| | - Pavel S Demenkov
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia; PB-soft, LLC, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia.
| | - Vladimir A Ivanisenko
- The Federal Research Center Institute of Cytology and Genetics, The Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia; PB-soft, LLC, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia.
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27
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Mitchell JK, Lemon SM, McGivern DR. How do persistent infections with hepatitis C virus cause liver cancer? Curr Opin Virol 2015; 14:101-8. [PMID: 26426687 PMCID: PMC4628866 DOI: 10.1016/j.coviro.2015.09.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/02/2015] [Accepted: 09/08/2015] [Indexed: 12/21/2022]
Abstract
Persistent infection with hepatitis C virus (HCV) is associated with an increased risk of hepatocellular carcinoma (HCC). Cancer typically develops in a setting of chronic hepatic inflammation and advanced fibrosis or cirrhosis, and such tissue represents a pre-neoplastic 'cancer field'. However, not all persistent infections progress to HCC and a combination of viral and host immune factors likely contributes to carcinogenesis. HCV may disrupt cellular pathways involved in detecting and responding to DNA damage, potentially adding to the risk of cancer. Efforts to unravel how HCV promotes HCC are hindered by lack of a robust small animal model, but a better understanding of molecular mechanisms could identify novel biomarkers for early detection and allow for development of improved therapies.
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Affiliation(s)
- Jonathan K Mitchell
- Division of Infectious Diseases, Department of Medicine, and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Stanley M Lemon
- Division of Infectious Diseases, Department of Medicine, and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - David R McGivern
- Division of Infectious Diseases, Department of Medicine, and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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28
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Modulation of DNA damage and repair pathways by human tumour viruses. Viruses 2015; 7:2542-91. [PMID: 26008701 PMCID: PMC4452920 DOI: 10.3390/v7052542] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/12/2015] [Indexed: 02/07/2023] Open
Abstract
With between 10% and 15% of human cancers attributable to viral infection, there is great interest, from both a scientific and clinical viewpoint, as to how these pathogens modulate host cell functions. Seven human tumour viruses have been identified as being involved in the development of specific malignancies. It has long been known that the introduction of chromosomal aberrations is a common feature of viral infections. Intensive research over the past two decades has subsequently revealed that viruses specifically interact with cellular mechanisms responsible for the recognition and repair of DNA lesions, collectively known as the DNA damage response (DDR). These interactions can involve activation and deactivation of individual DDR pathways as well as the recruitment of specific proteins to sites of viral replication. Since the DDR has evolved to protect the genome from the accumulation of deleterious mutations, deregulation is inevitably associated with an increased risk of tumour formation. This review summarises the current literature regarding the complex relationship between known human tumour viruses and the DDR and aims to shed light on how these interactions can contribute to genomic instability and ultimately the development of human cancers.
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29
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Zhu JD, Meng W, Wang XJ, Wang HCR. Broad-spectrum antiviral agents. Front Microbiol 2015; 6:517. [PMID: 26052325 PMCID: PMC4440912 DOI: 10.3389/fmicb.2015.00517] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 05/09/2015] [Indexed: 12/24/2022] Open
Abstract
Development of highly effective, broad-spectrum antiviral agents is the major objective shared by the fields of virology and pharmaceutics. Antiviral drug development has focused on targeting viral entry and replication, as well as modulating cellular defense system. High throughput screening of molecules, genetic engineering of peptides, and functional screening of agents have identified promising candidates for development of optimal broad-spectrum antiviral agents to intervene in viral infection and control viral epidemics. This review discusses current knowledge, prospective applications, opportunities, and challenges in the development of broad-spectrum antiviral agents.
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Affiliation(s)
- Jun-Da Zhu
- Key Laboratory of Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University Beijing, China
| | - Wen Meng
- Key Laboratory of Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University Beijing, China
| | - Xiao-Jia Wang
- Key Laboratory of Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University Beijing, China
| | - Hwa-Chain R Wang
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, The University of Tennessee, Knoxville TN, USA
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30
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Bocaneti F, Altamura G, Corteggio A, Velescu E, Borzacchiello G. Expression of bcl-2 and p53 in bovine cutaneous fibropapillomas. Infect Agent Cancer 2015; 10:2. [PMID: 25601891 PMCID: PMC4298047 DOI: 10.1186/1750-9378-10-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 12/15/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Bovine cutaneous fibropapillomas are benign hyperproliferative lesions induced by Bovine Papillomaviruses (BPVs). Bcl-2 is an important anti-apoptotic protein which is expressed in several cancer types. In contrary, p53 is a tumour suppressor protein that mediates cell cycle arrest, apoptosis and senescence in response to cellular stresses. FINDINGS Here, we investigated immunohistochemically and biochemically, the expression of bcl-2 and p53 in a subset of BPV positive fibropapillomas and bovine normal skin. Normal skin samples showed a weak signal for both proteins in the cytoplasm of the basal cells. Nine out of twelve (75%) tumour samples stained positive for bcl-2 throughout basal and parabasal layers, with most of cells showing strong cytoplasmic immunoreactivity. Nine out of twelve (75%) fibropapillomas were found to be positive for p53 expression, showing a strong cytoplasmic and perinuclear staining of p53 protein mainly in the basal and parabasal layers. CONCLUSIONS Our data reveal an altered bcl-2 and p53 immunoreactivity in bovine cutaneous fibropapillomas, suggesting involvement of these two proteins in the cutaneous neoplastic transformation through an impaired apoptotic process.
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Affiliation(s)
- Florentina Bocaneti
- Department of Public Health, Faculty of Veterinary Medicine, University of Agriculture Sciences and Veterinary Medicine, Ion Ionescu de la, Brad, Iasi, Romania
| | - Gennaro Altamura
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via F. Delpino, 1, 80137 Napoli, Italy
| | - Annunziata Corteggio
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via F. Delpino, 1, 80137 Napoli, Italy
| | - Elena Velescu
- Department of Public Health, Faculty of Veterinary Medicine, University of Agriculture Sciences and Veterinary Medicine, Ion Ionescu de la, Brad, Iasi, Romania
| | - Giuseppe Borzacchiello
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via F. Delpino, 1, 80137 Napoli, Italy
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31
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Abstract
Cellular apoptosis is of major importance in the struggle between virus and host. Although many viruses use various strategies to control the cell death machinery by encoding anti-apoptotic virulence factors, it is now becoming clear that, in addition to their role in inhibiting apoptosis, these factors function in multiple immune and metabolic pathways to promote fitness and pathogenesis. In this Progress article, we discuss novel functions of viral anti-apoptotic factors in the regulation of autophagy, in the nuclear factor-κB (NF-κB) pathway and in interferon signalling, with a focus on persistent and oncogenic gammaherpesviruses. If viral anti-apoptotic proteins are to be properly exploited as targets for antiviral drugs, their diverse and complex roles should be considered.
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Affiliation(s)
- Chengyu Liang
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, California 90033, USA
| | - Byung-Ha Oh
- Department of Biological Sciences, KAIST Institute for the Biocentury, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Jae U Jung
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, California 90033, USA
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32
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Marcello MA, Malandrino P, Almeida JFM, Martins MB, Cunha LL, Bufalo NE, Pellegriti G, Ward LS. The influence of the environment on the development of thyroid tumors: a new appraisal. Endocr Relat Cancer 2014; 21:T235-54. [PMID: 24948559 DOI: 10.1530/erc-14-0131] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Most epidemiological studies concerning differentiated thyroid cancers (DTC) indicate an increasing incidence over the last two decades. This increase might be partially explained by the better access to health services worldwide, but clinicopathological analyses do not fully support this hypothesis, indicating that there are carcinogenetic factors behind this noticeable increasing incidence. Although we have undoubtedly understood the biology and molecular pathways underlying thyroid carcinogenesis in a better way, we have made very little progresses in identifying a risk profile for DTC, and our knowledge of risk factors is very similar to what we knew 30-40 years ago. In addition to ionizing radiation exposure, the most documented and established risk factor for DTC, we also investigated the role of other factors, including eating habits, tobacco smoking, living in a volcanic area, xenobiotics, and viruses, which could be involved in thyroid carcinogenesis, thus, contributing to the increase in DTC incidence rates observed.
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Affiliation(s)
- M A Marcello
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - P Malandrino
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - J F M Almeida
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - M B Martins
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - L L Cunha
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - N E Bufalo
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - G Pellegriti
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
| | - L S Ward
- Laboratory of Cancer Molecular Genetics (Gemoca)Faculty of Medical Sciences, University of Campinas (FCM-Unicamp), Rua Tessalia Vieira de Camargo, 126, Barao Geraldo, Campinas, Sao Paulo, 13083-887, BrazilEndocrinologyDepartment of Clinical and Molecular Biomedicine, Garibaldi-Nesima Medical Center, University of Catania, Catania, Italy
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Levovitz C, Chen D, Ivansson E, Gyllensten U, Finnigan JP, Alshawish S, Zhang W, Schadt EE, Posner MR, Genden EM, Boffetta P, Sikora AG. TGFβ receptor 1: an immune susceptibility gene in HPV-associated cancer. Cancer Res 2014; 74:6833-44. [PMID: 25273091 DOI: 10.1158/0008-5472.can-14-0602-t] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Only a minority of those exposed to human papillomavirus (HPV) develop HPV-related cervical and oropharyngeal cancer. Because host immunity affects infection and progression to cancer, we tested the hypothesis that genetic variation in immune-related genes is a determinant of susceptibility to oropharyngeal cancer and other HPV-associated cancers by performing a multitier integrative computational analysis with oropharyngeal cancer data from a head and neck cancer genome-wide association study (GWAS). Independent analyses, including single-gene, gene-interconnectivity, protein-protein interaction, gene expression, and pathway analysis, identified immune genes and pathways significantly associated with oropharyngeal cancer. TGFβR1, which intersected all tiers of analysis and thus selected for validation, replicated significantly in the head and neck cancer GWAS limited to HPV-seropositive cases and an independent cervical cancer GWAS. The TGFβR1 containing p38-MAPK pathway was significantly associated with oropharyngeal cancer and cervical cancer, and TGFβR1 was overexpressed in oropharyngeal cancer, cervical cancer, and HPV(+) head and neck cancer tumors. These concordant analyses implicate TGFβR1 signaling as a process dysregulated across HPV-related cancers. This study demonstrates that genetic variation in immune-related genes is associated with susceptibility to oropharyngeal cancer and implicates TGFβR1/TGFβ signaling in the development of both oropharyngeal cancer and cervical cancer. Better understanding of the immunogenetic basis of susceptibility to HPV-associated cancers may provide insight into host/virus interactions and immune processes dysregulated in the minority of HPV-exposed individuals who progress to cancer.
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Affiliation(s)
- Chaya Levovitz
- The Icahn School of Medicine at Mount Sinai, New York, New York. Department of Immunology, Icahn School of Medicine at Mount Sinai, New York, New York. Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Dan Chen
- SciLifeLab Uppsala, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Emma Ivansson
- SciLifeLab Uppsala, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Ulf Gyllensten
- SciLifeLab Uppsala, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - John P Finnigan
- The Icahn School of Medicine at Mount Sinai, New York, New York
| | - Sara Alshawish
- The Icahn School of Medicine at Mount Sinai, New York, New York
| | - Weijia Zhang
- Mount Sinai Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Eric E Schadt
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York. Mount Sinai Institute for Genomics and Multiscale Biology, New York, New York
| | - Marshal R Posner
- The Icahn School of Medicine at Mount Sinai, New York, New York. Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Eric M Genden
- The Icahn School of Medicine at Mount Sinai, New York, New York. Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York. Department of Immunology, Genetics and Pathology, Tisch Cancer Institute, New York, New York
| | - Paolo Boffetta
- The Icahn School of Medicine at Mount Sinai, New York, New York. Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, New York, New York. Department of Immunology, Genetics and Pathology, Tisch Cancer Institute, New York, New York
| | - Andrew G Sikora
- The Icahn School of Medicine at Mount Sinai, New York, New York. Department of Immunology, Icahn School of Medicine at Mount Sinai, New York, New York. Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York. Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, New York. Department of Immunology, Genetics and Pathology, Tisch Cancer Institute, New York, New York.
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34
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Manzo-Merino J, Contreras-Paredes A, Vázquez-Ulloa E, Rocha-Zavaleta L, Fuentes-Gonzalez AM, Lizano M. The Role of Signaling Pathways in Cervical Cancer and Molecular Therapeutic Targets. Arch Med Res 2014; 45:525-39. [DOI: 10.1016/j.arcmed.2014.10.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 10/29/2014] [Indexed: 12/24/2022]
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35
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Snellenberg S, Cillessen SAGM, Van Criekinge W, Bosch L, Meijer CJLM, Snijders PJF, Steenbergen RDM. Methylation-mediated repression of PRDM14 contributes to apoptosis evasion in HPV-positive cancers. Carcinogenesis 2014; 35:2611-8. [PMID: 25233927 DOI: 10.1093/carcin/bgu197] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Promoter methylation of the transcription factor PRDM14 (PRDI-BF1 and RIZ domain containing 14) represents a highly frequent event in human papillomavirus (HPV)-induced cervical cancers and cancer precursor lesions. Here, we aimed to assess the functional consequences of PRDM14 promoter methylation in HPV-induced carcinogenesis. PRDM14 promoter methylation, expression and consequences of ectopic PRDM14 expression were studied in HPV16-positive cervical and oral cancer cell lines (SiHa, CaSki and 93VU147T), human embryonic kidney 293 (HEK293T) cells and primary human foreskin keratinocytes (HFK). PRDM14 mRNA expression was restricted to HEK293T and HFK cells, and could be upregulated in SiHa cells upon DNA methylation inhibition. Ectopic expression of PRDM14 in SiHa, CaSki and 93VU147T cells resulted in significantly more apoptotic cells, as measured by annexin V labelling, compared to HEK293T and HFK cells. MRNA profiling of 41 apoptosis regulators identified NOXA and PUMA as candidate target genes involved in PRDM14-mediated apoptosis induction. Full-length PRDM14 transactivated both NOXA and PUMA promoters. Transactivation was abolished upon deletion of the PRDM14 DNA binding domain. This suggests that NOXA and PUMA expression is directly regulated by PRDM14, which in case of NOXA was linked to a consensus PRDM14 binding motif in the promoter region. Taken together, these results suggest that PRDM14 acts as a regulator of NOXA and PUMA-mediated apoptosis induction, thereby providing evidence for a tumour suppressive role in HPV-induced carcinogenesis. The contribution of methylation-mediated gene silencing of PRDM14 to apoptosis evasion in HPV-positive cancer cells offers novel therapeutic options for HPV-induced cancers.
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Affiliation(s)
- Suzanne Snellenberg
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and
| | - Saskia A G M Cillessen
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and
| | - Wim Van Criekinge
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and BioBix, Department of Mathematical Modelling, Statistics and Bioinformatics, Ghent University, Ghent, Belgium
| | - Leontien Bosch
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and
| | - Chris J L M Meijer
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and
| | - Peter J F Snijders
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and
| | - Renske D M Steenbergen
- Department of Pathology, Unit of Molecular Pathology, VU University Medical Center, Amsterdam, The Netherlands and
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36
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Moens U, Van Ghelue M, Ehlers B. Are human polyomaviruses co-factors for cancers induced by other oncoviruses? Rev Med Virol 2014; 24:343-60. [PMID: 24888895 DOI: 10.1002/rmv.1798] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 04/25/2014] [Accepted: 05/07/2014] [Indexed: 12/16/2022]
Abstract
Presently, 12 human polyomaviruses are known: BK polyomavirus (BKPyV), JCPyV, KIPyV, WUPyV, Merkel cell polyomavirus (MCPyV), HPyV6, HPyV7, Trichodysplasia spinulosa-associated polyomavirus, HPyV9, HPyV10, STLPyV and HPyV12. In addition, the non-human primate polyomavirus simian virus 40 (SV40) seems to circulate in the human population. MCPyV was first described in 2008 and is now accepted to be an etiological factor in about 80% of the rare but aggressive skin cancer Merkel cell carcinoma. SV40, BKPyV and JCPyV or part of their genomes can transform cells, including human cells, and induce tumours in animal models. Moreover, DNA and RNA sequences and proteins of these three viruses have been discovered in tumour tissue. Despite these observations, their role in cancer remains controversial. So far, an association between cancer and the other human polyomaviruses is lacking. Because human polyomavirus DNA has been found in a broad spectrum of cell types, simultaneous dwelling with other oncogenic viruses is possible. Co-infecting human polyomaviruses may therefore act as a co-factor in the development of cancer, including those induced by other oncoviruses. Reviewing studies that report co-infection with human polyomaviruses and other tumour viruses in cancer tissue fail to detect a clear link between co-infection and cancer. Directions for future studies to elaborate on a possible auxiliary role of human polyomaviruses in cancer are suggested, and the mechanisms by which human polyomaviruses may synergize with other viruses in oncogenic transformation are discussed.
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Affiliation(s)
- Ugo Moens
- University of Tromsø, Faculty of Health Sciences, Institute of Medical Biology, Molecular Inflammation Research Group, Tromsø, Norway
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