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Georgopoulos AP, James LM. Association between brain cancer immunogenetic profile and in silico immunogenicities of 11 viruses. Sci Rep 2023; 13:21528. [PMID: 38057480 PMCID: PMC10700375 DOI: 10.1038/s41598-023-48843-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023] Open
Abstract
Several viruses including human herpes viruses (HHVs), human polyomavirus JCV, and human papilloma virus (HPV) have been implicated in brain cancer, albeit inconsistently. Since human leukocyte antigen (HLA) is centrally involved in the human immune response to viruses and has been implicated in brain cancer, we evaluated in silico the immunogenicity between 69 Class I HLA alleles with epitopes of proteins of 9 HHVs, JCV, and HPV with respect to a population-based HLA-brain cancer profile. We found that immunogenicity varied widely across HLA alleles with HLA-C alleles exhibiting the highest immunogenicity, and that immunogenicity scores were negatively associated with the population-based HLA-brain cancer profile, particularly for JCV, HHV6A, HHV5, HHV3, HHV8, and HHV7. Consistent with the role of HLA in foreign antigen elimination, the findings suggest that viruses with proteins of high HLA immunogenicity are eliminated more effectively and, consequently, less likely to cause brain cancer; conversely, the absence of highly immunogenic HLA may allow the viral antigens to persist, contributing to cancer.
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Affiliation(s)
- Apostolos P Georgopoulos
- The HLA Research Group, Brain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis VAMC, One Veterans Drive, Minneapolis, MN, 55417, USA.
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA.
- Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN, USA.
- Department of Neurology, University of Minnesota Medical School, Minneapolis, MN, USA.
| | - Lisa M James
- The HLA Research Group, Brain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis VAMC, One Veterans Drive, Minneapolis, MN, 55417, USA
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA
- Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN, USA
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2
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Shah AH, Rivas SR, Doucet-O’Hare TT, Govindarajan V, DeMarino C, Wang T, Ampie L, Zhang Y, Banasavadi-Siddegowda YK, Walbridge S, Maric D, Garcia-Montojo M, Suter RK, Lee MH, Zaghloul KA, Steiner J, Elkahloun AG, Chandar J, Seetharam D, Desgraves J, Li W, Johnson K, Ivan ME, Komotar RJ, Gilbert MR, Heiss JD, Nath A. Human endogenous retrovirus K contributes to a stem cell niche in glioblastoma. J Clin Invest 2023; 133:e167929. [PMID: 37395282 PMCID: PMC10313366 DOI: 10.1172/jci167929] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 05/19/2023] [Indexed: 07/04/2023] Open
Abstract
Human endogenous retroviruses (HERVs) are ancestral viral relics that constitute nearly 8% of the human genome. Although normally silenced, the most recently integrated provirus HERV-K (HML-2) can be reactivated in certain cancers. Here, we report pathological expression of HML-2 in malignant gliomas in both cerebrospinal fluid and tumor tissue that was associated with a cancer stem cell phenotype and poor outcomes. Using single-cell RNA-Seq, we identified glioblastoma cellular populations with elevated HML-2 transcripts in neural progenitor-like cells (NPC-like) that drive cellular plasticity. Using CRISPR interference, we demonstrate that HML-2 critically maintained glioblastoma stemness and tumorigenesis in both glioblastoma neurospheres and intracranial orthotopic murine models. Additionally, we demonstrate that HML-2 critically regulated embryonic stem cell programs in NPC-derived astroglia and altered their 3D cellular morphology by activating the nuclear transcription factor OCT4, which binds to an HML-2-specific long-terminal repeat (LTR5Hs). Moreover, we discovered that some glioblastoma cells formed immature retroviral virions, and inhibiting HML-2 expression with antiretroviral drugs reduced reverse transcriptase activity in the extracellular compartment, tumor viability, and pluripotency. Our results suggest that HML-2 fundamentally contributes to the glioblastoma stem cell niche. Because persistence of glioblastoma stem cells is considered responsible for treatment resistance and recurrence, HML-2 may serve as a unique therapeutic target.
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Affiliation(s)
- Ashish H. Shah
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Sarah R. Rivas
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Tara T. Doucet-O’Hare
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Vaidya Govindarajan
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Catherine DeMarino
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Tongguang Wang
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Leonel Ampie
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Yong Zhang
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | | | - Stuart Walbridge
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Dragan Maric
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Marta Garcia-Montojo
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Robert K. Suter
- Georgetown University, Bioinformatics Section, Washington, DC, USA
| | - Myoung-Hwa Lee
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Kareem A. Zaghloul
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Joseph Steiner
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Abdel G. Elkahloun
- Cancer Genetics Branch, National Human Genome Research Institute, NIH, Bethesda, Maryland, USA
| | - Jay Chandar
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Deepa Seetharam
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Jelisah Desgraves
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Wenxue Li
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Kory Johnson
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Michael E. Ivan
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Ricardo J. Komotar
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Mark R. Gilbert
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - John D. Heiss
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Avindra Nath
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
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3
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Guerra G, McCoy L, Hansen HM, Rice T, Molinaro AM, Wiemels JL, Wiencke JK, Wrensch M, Francis SS. Antibodies to varicella-zoster virus and three other herpesviruses and survival in adults with glioma. Neuro Oncol 2023; 25:1047-1057. [PMID: 36610073 PMCID: PMC10237424 DOI: 10.1093/neuonc/noac283] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Lifetime exposure to the varicella-zoster virus (VZV) has been consistently inversely associated with glioma risk, however, the relationship of VZV with survival in adults with glioma has not been investigated. In this study, we analyzed the survival of adults with glioma in relation to their antibody measurements to 4 common herpes viral infections, including VZV, measured post-diagnosis. METHODS We analyzed IgG antibody measurements to VZV, cytomegalovirus (CMV), herpes simplex virus 1/2 (HSV), and Epstein-Barr virus (EBV) collected from 1378 adults with glioma diagnosed between 1991 and 2010. Blood was obtained a median of 3 months after surgery. Associations of patient IgG levels with overall survival were estimated using Cox models adjusted for age, sex, self-reported race, surgery type, dexamethasone usage at blood draw, and tumor grade. Models were stratified by recruitment series and meta-analyzed to account for time-dependent treatment effects. RESULTS VZV antibody seropositivity was associated with improved survival outcomes in adults with glioma (Hazard ratio, HR = 0.70, 95% Confidence Interval 0.54-0.90, P = .006). Amongst cases who were seropositive for VZV antibodies, survival was significantly improved for those above the 25th percentile of continuous reactivity measurements versus those below (HR = 0.76, 0.66-0.88, P = .0003). Antibody seropositivity to EBV was separately associated with improved survival (HR = 0.71, 0.53-0.96, P = .028). Antibody positivity to 2 other common viruses (CMV, HSV) was not associated with altered survival. CONCLUSIONS Low levels of VZV or EBV antibodies are associated with poorer survival outcomes for adults with glioma. Differential immune response rather than viral exposure may explain these findings.
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Affiliation(s)
- Geno Guerra
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
| | - Lucie McCoy
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
| | - Helen M Hansen
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
| | - Terri Rice
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
- Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California, USA
| | - Joseph L Wiemels
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
- Institute of Human Genetics, University of California San Francisco, San Francisco, California, USA
- Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California, USA
| | - Margaret Wrensch
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
- Institute of Human Genetics, University of California San Francisco, San Francisco, California, USA
- Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California, USA
| | - Stephen S Francis
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
- Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California, USA
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Strzelczyk JK, Świętek A, Hudy D, Gołąbek K, Gaździcka J, Miśkiewicz-Orczyk K, Ścierski W, Strzelczyk J, Misiołek M. Low Prevalence of HSV-1 and Helicobacter pylori in HNSCC and Chronic Tonsillitis Patients Compared to Healthy Individuals. Diagnostics (Basel) 2023; 13:diagnostics13101798. [PMID: 37238282 DOI: 10.3390/diagnostics13101798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Recent studies identified viral and bacterial factors, including HSV-1 and H. pylori, as possible factors associated with diseases such as chronic tonsillitis and cancers, including head and neck squamous cell carcinoma (HNSCC). We assessed the prevalence of HSV-1/2 and H. pylori in patients with HNSCC, chronic tonsillitis, and healthy individuals using PCR after DNA isolation. Associations were sought between the presence of HSV-1, H. pylori, and clinicopathological and demographic characteristics and stimulant use. HSV-1 and H. pylori were most frequently identified in controls (HSV-1: 12.5% and H. pylori: 6.3%). There were 7 (7.8%) and 8 (8.6%) patients with positive HSV-1 in HNSCC and chronic tonsillitis patients, respectively, while the prevalence of H. pylori was 0/90 (0%) and 3/93 (3.2%), respectively. More cases of HSV-1 were observed in older individuals in the control group. All positive HSV-1 cases in the HNSCC group were associated with advanced tumor stage (T3/T4). The prevalence of HSV-1 and H. pylori was highest in the controls compared to HNSCC and chronic tonsillitis patients, which indicates that the pathogens were not risk factors. However, since all positive HSV-1 cases in the HNSCC group were observed only in patients with advanced tumor stage, we suggested a possible link between HSV-1 and tumor progression. Further follow-up of the study groups is planned.
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Affiliation(s)
- Joanna Katarzyna Strzelczyk
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Agata Świętek
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
- Silesia LabMed Research and Implementation Center, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Dorota Hudy
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Karolina Gołąbek
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Jadwiga Gaździcka
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Katarzyna Miśkiewicz-Orczyk
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowskiej St., 41-800 Zabrze, Poland
| | - Wojciech Ścierski
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowskiej St., 41-800 Zabrze, Poland
| | - Janusz Strzelczyk
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 35 Ceglana St., 40-514 Katowice, Poland
| | - Maciej Misiołek
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowskiej St., 41-800 Zabrze, Poland
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5
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Alzahrani FA, Khan MF, Ahmad V. Recognition of Differentially Expressed Molecular Signatures and Pathways Associated with COVID-19 Poor Prognosis in Glioblastoma Patients. Int J Mol Sci 2023; 24:ijms24043562. [PMID: 36834974 PMCID: PMC9965082 DOI: 10.3390/ijms24043562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 02/12/2023] Open
Abstract
Glioblastoma (GBM) is a type of brain cancer that is typically very aggressive and difficult to treat. Glioblastoma cases have been reported to have increased during COVID-19. The mechanisms underlying this comorbidity, including genomic interactions, tumor differentiation, immune responses, and host defense, are not completely explained. Therefore, we intended to investigate the differentially expressed shared genes and therapeutic agents which are significant for these conditions by using in silico approaches. Gene expression datasets of GSE68848, GSE169158, and GSE4290 studies were collected and analyzed to identify the DEGs between the diseased and the control samples. Then, the ontology of the genes and the metabolic pathway enrichment analysis were carried out for the classified samples based on expression values. Protein-protein interactions (PPI) map were performed by STRING and fine-tuned by Cytoscape to screen the enriched gene module. In addition, the connectivity map was used for the prediction of potential drugs. As a result, 154 overexpressed and 234 under-expressed genes were identified as common DEGs. These genes were found to be significantly enriched in the pathways involved in viral diseases, NOD-like receptor signaling pathway, the cGMP-PKG signaling pathway, growth hormone synthesis, secretion, and action, the immune system, interferon signaling, and the neuronal system. STAT1, CXCL10, and SAMDL were screened out as the top 03 out of the top 10 most critical genes among the DEGs from the PPI network. AZD-8055, methotrexate, and ruxolitinib were predicted to be the possible agents for the treatment. The current study identified significant key genes, common metabolic signaling networks, and therapeutic agents to improve our perception of the common mechanisms of GBM-COVID-19.
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Affiliation(s)
- Faisal A. Alzahrani
- Department of Biochemistry, Faculty of Science, Embryonic Stem Cell Unit, King Fahad Center for Medical Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohd Faheem Khan
- Department of Biotechnology, Khandelwal College of Management Science and Technology (KCMT), Mahatma Jyotiba Phule Rohilkhand University, Bareilly 243006, India
| | - Varish Ahmad
- Health Information Technology Department, The Applied College, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Centre of Artificial Intelligence for Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence:
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Evaluation of Cellular miR-122 Expression in Association with the Presence of Varicella-Zoster Virus among Central Nervous System Tumors. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2022. [DOI: 10.5812/ijcm-108497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background: Brain tumors are all primary central nervous system (CNS) tumors with unclear etiologies and viral infections, especially human herpesviruses, which have emerged as a hot topic for comprehensive research. Objectives: The present study aimed at assessing the molecular epidemiology of varicella-zoster virus (VZV) and its association with microRNA 122 (miR-122) expression in CNS tumor samples. Methods: Fresh frozen tissue samples were collected from 60 CNS tumor patients and 45 healthy controls. A nested PCR assay was performed to detect the VZV-DNA. Subsequently, the expression level of miR-122 was evaluated in the CNS tumor tissue samples of patients and the brain tissue samples were obtained from healthy controls, using a real-time PCR assay. Results: Of 60 patients with CNS tumors, 29 were men and 31 were women. VZV-DNA was detected in 13.3% of the CNS tumor tissue specimens. There was no statistically significant association between the presence of VZV-DNA and different types of CNS tumors (P > 0.05). Furthermore, the expression level of miR-122 was significantly downregulated in the CNS tumor tissue samples obtained from the patients compared with those of the healthy controls (P < 0.05). Additionally, the expression level of miR-122 was significantly lower in the VZV-positive tumor samples as compared with those of the VZV-negative tumor samples and the healthy controls. Conclusions: Although VZV plays no direct role in the development of CNS tumors, the virus may affect the biology of CNS tumors by decreasing the expression levels of miR-122, which consequently leads to an increased risk of malignancy. However, the experimental data are not conclusive enough; so, further investigations are needed.
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Jiang FC, Li GS, Luo JY, Huang ZG, Dang YW, Chen G, He J, Gao L, Tang YX, Wei GG, Dai WB, Feng ZB. Downregulation of zinc finger protein 71 expression in oral squamous cell carcinoma tissues and its underlying molecular mechanism. Pathol Res Pract 2022; 238:154109. [PMID: 36115333 DOI: 10.1016/j.prp.2022.154109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/24/2022] [Accepted: 08/31/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Patients with oral squamous cell carcinoma (OSCC) have poor prognoses due to a limited understanding of the pathogenesis of OSCC. Zinc finger protein (ZNF) is the largest transcription factor family in the human genome and exert diverse and important functions. Nevertheless, the exact expression status and molecular mechanism of ZNF71 have not been described in OSCC. Therefore, this study aimed to identify the specific expression level of ZNF71 in OSCC tissues and to further interpret the potential molecular mechanism of ZNF71 in the pathogenesis of OSCC. METHODS In-house immunohistochemical staining of 116 OSCC samples and 29 non-OSCC samples was employed to detect the expression status of ZNF71 at the protein level of OSCC tissues. Single-cell RNA sequencing data from 7 OSCC samples was used to explore the expression landscape of ZNF71 in different cell types from OSCC tissues. High-throughput RNA sequencing data and gene chips data from 893 OSCC samples and 301 non-OSCC samples were utilized to identify the specific expression level of ZNF71 at the bulk mRNA level of OSCC tissues. Here, standardized mean difference (SMD) value was applied to calculate the expression differences between OSCC group and non-OSCC group. Multiple datasets were included; hence, the results were considered to be more reliable. Sensitivity analysis was conducted to evaluate the stability of the results. Enrichment analysis and immune infiltration analysis were used to explore the underlying molecular mechanism of ZNF71 in OSCC. RESULTS ZNF71 was significantly downregulated in OSCC tissues at the protein level (SMD = -1.96, 95 % confidence interval [95 % CI]: -2.43 to -1.50). ZNF71 was absent in various cell types from OSCC tissues including cancerous epithelial cells and tumor-infiltrating immune cells. ZNF71 was downregulated in OSCC tissues at the bulk mRNA level (SMD = -0.38, 95 % CI: -0.75 to -0.02). Enrichment analysis showed that positively and differentially co-expressed genes mainly concentrated on "herpes simplex virus 1 infection" and "regulation of plasma membrane bounded cell projection organization", and negatively and differentially co-expressed genes mainly participated in "cell cycle" and "DNA metabolic process". Moreover, the putative target genes of ZNF71 mainly participated in "cellular respiration" and "protein catabolic process". Finally, immune infiltration analysis revealed that ZNF71 expression was positively correlated with multiple immune cells including activated B cells, memory B cells, and natural killer (NK) cells, and negatively correlated with various immune cells, including CD56 bright NK cells, neutrophil, and immature dendritic cells. CONCLUSION The downregulation of ZNF71 may influence the initiation and promotion of OSCC by reducing immune infiltration, accelerating cell cycle progression, and affecting metabolic process, and this requires further research.
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Affiliation(s)
- Fang-Cheng Jiang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China; Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Guo-Sheng Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China; Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Jia-Yuan Luo
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China; Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Zhi-Guang Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Yi-Wu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China; Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Juan He
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Li Gao
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China; Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Yu-Xing Tang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China; Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Gan-Guan Wei
- Department of Otorhinolaryngology Head and Neck Surgery, 923 hospital of People's Liberation Army, 52 Zhiwu Road, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China
| | - Wen-Bin Dai
- Department of Pathology, Liuzhou People's Hospital, 8 Wenchang Road, Chengzhong District, Liuzhou, Guangxi Zhuang Autonomous Region 545006, PR China
| | - Zhen-Bo Feng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong RD, Nanning, Guangxi Zhuang Autonomous Region 530021, PR China.
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Jatyan R, Singh P, Sahel DK, Karthik YG, Mittal A, Chitkara D. Polymeric and small molecule-conjugates of temozolomide as improved therapeutic agents for glioblastoma multiforme. J Control Release 2022; 350:494-513. [PMID: 35985493 DOI: 10.1016/j.jconrel.2022.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/31/2022] [Accepted: 08/12/2022] [Indexed: 11/15/2022]
Abstract
Temozolomide (TMZ), an imidazotetrazine, is a second-generation DNA alkylating agent used as a first-line treatment of glioblastoma multiforme (GBM). It was approved by FDA in 2005 and declared a blockbuster drug in 2008. Although TMZ has shown 100% oral bioavailability and crosses the blood-brain barrier effectively, however it suffers from limitations such as a short half-life (∼1.8 h), rapid metabolism, and lesser accumulation in the brain (∼10-20%). Additionally, development of chemoresistance has been associated with its use. Since it is a potential chemotherapeutic agent with an unmet medical need, advanced delivery strategies have been explored to overcome the associated limitations of TMZ. Nanocarriers including liposomes, solid lipid nanoparticles (SLNs), nanostructure lipid carriers (NLCs), and polymeric nanoparticles have demonstrated their ability to improve its circulation time, stability, tissue-specific accumulation, sustained release, and cellular uptake. Because of the appreciable water solubility of TMZ (∼5 mg/mL), the physical loading of TMZ in these nanocarriers is always challenging. Alternatively, the conjugation approach, wherein TMZ has been conjugated to polymers or small molecules, has been explored with improved outcomes in vitro and in vivo. This review emphasized the practical evidence of the conjugation strategy to improve the therapeutic potential of TMZ in the treatment of glioblastoma multiforme.
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Affiliation(s)
- Reena Jatyan
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, BITS-Pilani, Vidya Vihar, Pilani 333031, Rajasthan, India
| | - Prabhjeet Singh
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, BITS-Pilani, Vidya Vihar, Pilani 333031, Rajasthan, India
| | - Deepak Kumar Sahel
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, BITS-Pilani, Vidya Vihar, Pilani 333031, Rajasthan, India
| | - Y G Karthik
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, BITS-Pilani, Vidya Vihar, Pilani 333031, Rajasthan, India
| | - Anupama Mittal
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, BITS-Pilani, Vidya Vihar, Pilani 333031, Rajasthan, India
| | - Deepak Chitkara
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, BITS-Pilani, Vidya Vihar, Pilani 333031, Rajasthan, India.
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9
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Guerra G, Kachuri L, Wendt G, Hansen HM, Mack SJ, Molinaro AM, Rice T, Bracci P, Wiencke JK, Kasahara N, Eckel-Passow JE, Jenkins RB, Wrensch M, Francis SS. The immunogenetics of viral antigen response is associated with subtype-specific glioma risk and survival. Am J Hum Genet 2022; 109:1105-1116. [PMID: 35550063 PMCID: PMC9247888 DOI: 10.1016/j.ajhg.2022.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/18/2022] [Indexed: 12/14/2022] Open
Abstract
Glioma is a highly fatal cancer with prognostically significant molecular subtypes and few known risk factors. Multiple studies have implicated infections in glioma susceptibility, but evidence remains inconsistent. Genetic variants in the human leukocyte antigen (HLA) region modulate host response to infection and have been linked to glioma risk. In this study, we leveraged genetic predictors of antibody response to 12 viral antigens to investigate the relationship with glioma risk and survival. Genetic reactivity scores (GRSs) for each antigen were derived from genome-wide-significant (p < 5 × 10-8) variants associated with immunoglobulin G antibody response in the UK Biobank cohort. We conducted parallel analyses of glioma risk and survival for each GRS and HLA alleles imputed at two-field resolution by using data from 3,418 glioma-affected individuals subtyped by somatic mutations and 8,156 controls. Genetic reactivity scores to Epstein-Barr virus (EBV) ZEBRA and EBNA antigens and Merkel cell polyomavirus (MCV) VP1 antigen were associated with glioma risk and survival (Bonferroni-corrected p < 0.01). GRSZEBRA and GRSMCV were associated in opposite directions with risk of IDH wild-type gliomas (ORZEBRA = 0.91, p = 0.0099/ORMCV = 1.11, p = 0.0054). GRSEBNA was associated with both increased risk for IDH mutated gliomas (OR = 1.09, p = 0.040) and improved survival (HR = 0.86, p = 0.010). HLA-DQA1∗03:01 was significantly associated with decreased risk of glioma overall (OR = 0.85, p = 3.96 × 10-4) after multiple testing adjustment. This systematic investigation of the role of genetic determinants of viral antigen reactivity in glioma risk and survival provides insight into complex immunogenomic mechanisms of glioma pathogenesis. These results may inform applications of antiviral-based therapies in glioma treatment.
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Affiliation(s)
- Geno Guerra
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA.
| | - Linda Kachuri
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - George Wendt
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Helen M Hansen
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Steven J Mack
- Department of Pediatrics, University of California, San Francisco, Oakland, CA, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Terri Rice
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Paige Bracci
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA; Institute of Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Nori Kasahara
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA; Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, USA
| | | | - Robert B Jenkins
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Margaret Wrensch
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA; Institute of Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - Stephen S Francis
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA; Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, USA.
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10
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Francis SS, Ostrom QT, Cote DJ, Smith TR, Claus E, Barnholtz-Sloan JS. The Epidemiology of Central Nervous System Tumors. Hematol Oncol Clin North Am 2022; 36:23-42. [PMID: 34801162 DOI: 10.1016/j.hoc.2021.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This article reviews the current epidemiology of central nervous system tumors. Population-level basic epidemiology, nationally and internationally, and current understanding of germline genetic risk are discussed, with a focus on known and well-studied risk factors related to the etiology of central nervous system tumors.
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Affiliation(s)
- Stephen S Francis
- Department of Neurological Surgery, Division of Neuro and Molecular Epidemiology, University of California San Francisco School of Medicine, 1450 3rd Street, HD442, San Francisco, CA 94158, USA.
| | - Quinn T Ostrom
- Department of Neurosurgery, Duke University School of Medicine, 571 Research Drive, MSRB-1, Rm 442, Durham, NC 27710, USA
| | - David J Cote
- Department of Neurosurgery, Keck School of Medicine, University of Southern California, 1200 N State Street, Suite 3300, Los Angeles, CA 90033, USA
| | - Timothy R Smith
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, 60 Fenwood Avenue, Boston, MA 02115, USA
| | - Elizabeth Claus
- Department of Neurosurgery, Yale University, Yale School of Public Health, Brigham and Women's Hospital, 60 College Street, New Haven, CT 06510, USA
| | - Jill S Barnholtz-Sloan
- Center for Biomedical Informatics and Information Technology, Trans-Divisional Research Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute (NCI), NCI Shady Grove, 9609 Medical Center Dr, Rockville, MD 20850, USA
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11
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Metabolic Reprogramming of Glioblastoma Cells during HCMV Infection Induces Secretome-Mediated Paracrine Effects in the Microenvironment. Viruses 2022; 14:v14010103. [PMID: 35062307 PMCID: PMC8777757 DOI: 10.3390/v14010103] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/22/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma (GBM) is an aggressive primary central nervous system neoplasia with limited therapeutic options and poor prognosis. Following reports of cytomegalovirus (HCMV) in GBM tumors, the anti-viral drug Valganciclovir was administered and found to significantly increase the longevity of GBM patients. While these findings suggest a role for HCMV in GBM, the relationship between them is not clear and remains controversial. Treatment with anti-viral drugs may prove clinically useful; however, their results do not explain the underlying mechanism between HCMV infection and GBM progression. We hypothesized that HCMV infection would metabolically reprogram GBM cells and that these changes would allow for increased tumor progression. We infected LN-18 GBM cells and employed a Seahorse Bioanalyzer to characterize cellular metabolism. Increased mitochondrial respiration and glycolytic rates were observed following infection. These changes were accompanied by elevated production of reactive oxygen species and lactate. Due to lactate’s numerous tumor-promoting effects, we examined the impact of paracrine signaling of HCMV-infected GBM cells on uninfected stromal cells. Our results indicated that, independent of viral transmission, the secretome of HCMV-infected GBM cells was able to alter the expression of key metabolic proteins and epigenetic markers. This suggests a mechanism of action where reprogramming of GBM cells alters the surrounding tumor microenvironment to be permissive to tumor progression in a manner akin to the Reverse-Warburg Effect. Overall, this suggests a potential oncomodulatory role for HCMV in the context of GBM.
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12
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Molecular Investigation of Human Cytomegalovirus and Epstein-Barr virus in Glioblastoma Brain Tumor: A Case-Control Study in Iran. IRANIAN BIOMEDICAL JOURNAL 2021; 25:426-33. [PMID: 34696577 DOI: 10.52547/ibj.25.6.426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Glioblastoma multiforme is the most invasive and lethal form of brain cancer with unclear etiology. Our study aimed to investigate the molecular prevalence of human cytomegalovirus (HCMV) and Epstein-Barr virus (EBV) infections in patients with glioblastoma multiforme (GBM). Methods This case-control study was conducted on 42 FFPE brain tumor samples from GBM patients and 42 brain autopsies from subjects without neurological disorders. The presence of EBV and HCMV DNA was determined, using PCR and nested-PCR assays, respectively. Results HCMV DNA was detected in 3 out of 42 (7.1%) of GBM samples and was absent from the control group (p = 0.07). Importantly, EBV DNA was detected in 9 out of 42 (21.4%) brain tissue specimens of GBM subjects, but again in none of the control group (p = 0.001). Conclusion Our findings indicate that infection with EBV is associated with GBM.
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13
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Jan W, Jones B, Jeelani NUO, Jacques TS, Lyall H, Randell P, Mewasingh L, Whittaker E. Acute flaccid myelitis caused by enterovirus D68 unmasking primary intracranial tumour in a previously healthy child. J Paediatr Child Health 2021; 57:1713-1716. [PMID: 33577116 DOI: 10.1111/jpc.15374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 11/17/2020] [Accepted: 01/21/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Wajanat Jan
- Department of Imaging, Imperial College Healthcare NHS Trust, London, UK
| | - Brynmor Jones
- Department of Imaging, Imperial College Healthcare NHS Trust, London, UK
| | | | - Thomas S Jacques
- Developmental Biology and Cancer Department, University College London, London, UK
| | - Hermione Lyall
- Paediatric Infectious Diseases, Imperial College Healthcare NHS Trust, London, UK
| | - Paul Randell
- Virology, Imperial College Healthcare NHS Trust, London, UK
| | - Leena Mewasingh
- Paediatric Neurology, Imperial College Healthcare NHS Trust, London, UK
| | - Elizabeth Whittaker
- Paediatric Infectious Diseases, Imperial College Healthcare NHS Trust, London, UK
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14
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Survey of BK and JC polyomaviruses, human cytomegalovirus and human papillomavirus in different types of brain tumors in Iranian patients. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Hull R, Mbita Z, Dlamini Z. Long non-coding RNAs (LncRNAs), viral oncogenomics, and aberrant splicing events: therapeutics implications. Am J Cancer Res 2021; 11:866-883. [PMID: 33791160 PMCID: PMC7994164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023] Open
Abstract
It has been estimated that worldwide up to 10% of all human cancers are the result of viral infection, with 7.2% of all cancers in the developed world have a viral aetiology. In contrast, 22.9% of infections in the developing world are the result of viral infections. This number increases to 30% in Sub-Saharan Africa. The ability of viral infections to induce the transformation of normal cells into cancerous cells is well documented. These viruses are mainly Hepatitis B and C viruses, Epstein Barr virus, Human papillomavirus and Human Cytomegalovirus. They can induce the transformation of normal cells into cancer cells and this may be the underlying cause of carcinogenesis in many different types of cancer. These include liver cancer, lymphoma, nasopharyngeal cancer, cervical cancer, gastric cancer and even glioblastoma. Long non-coding RNAs (LncRNAs) can function by regulating the expression of their target genes by controlling the stability of the target mRNAs or by blocking translation of the target mRNA. They can control transcription by regulating the recruitment of transcription factors or chromatin modification complexes. Finally, lncRNAs can control the phosphorylation, acetylation, and ubiquitination of proteins at the post-translation level. Thus, altering protein localisation, function, folding, stability and ultimately expression. In addition to these functions, lncRNA also regulate alternate pre-mRNA splicing in ways that contribute to the formation of tumours. This mainly involves the interaction of lncRNAs with splicing factors, which alters their activity and function. The ability of lncRNAs to regulate the stability, expression and function of tumour suppressor proteins is important in the development and progression of cancers. LncRNAs also regulate viral replication and latency, leading to carcinogenesis. These factors all make lncRNAs ideal targets for the development of biomarker arrays that can be based on secreted lncRNAs leading to the development of affordable non-invasive biomarker tests for the stage specific diagnosis of tumours. These lncRNAs can also serve as targets for the development of new anticancer drug treatments.
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Affiliation(s)
- Rodney Hull
- SA-MRC/UP Precision Prevention & Novel Drug Targets for HIV-Associated Cancers Extramural Unit, Pan African Cancer Research Institute, University of Pretoria Hatfield0028, South Africa
| | - Zukile Mbita
- Department of Biochemistry, Microbiology and Biochemistry, University of LimpopoSovenga 0727, South Africa
| | - Zodwa Dlamini
- SA-MRC/UP Precision Prevention & Novel Drug Targets for HIV-Associated Cancers Extramural Unit, Pan African Cancer Research Institute, University of Pretoria Hatfield0028, South Africa
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16
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The Association of Human Herpesviruses with Malignant Brain Tumor Pathology and Therapy: Two Sides of a Coin. Int J Mol Sci 2021; 22:ijms22052250. [PMID: 33668202 PMCID: PMC7956256 DOI: 10.3390/ijms22052250] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/13/2021] [Accepted: 02/17/2021] [Indexed: 02/06/2023] Open
Abstract
The role of certain viruses in malignant brain tumor development remains controversial. Experimental data demonstrate that human herpesviruses (HHVs), particularly cytomegalovirus (CMV), Epstein–Barr virus (EBV) and human herpes virus 6 (HHV-6), are implicated in brain tumor pathology, although their direct role has not yet been proven. CMV is present in most gliomas and medulloblastomas and is known to facilitate oncomodulation and/or immunomodulation, thus promoting cancer cell proliferation, invasion, apoptosis, angiogenesis, and immunosuppression. EBV and HHV-6 have also been detected in brain tumors and high-grade gliomas, showing high rates of expression and an inflammatory potential. On the other hand, due to the neurotropic nature of HHVs, novel studies have highlighted the engagement of such viruses in the development of new immunotherapeutic approaches in the context of oncolytic viral treatment and vaccine-based strategies against brain tumors. This review provides a comprehensive evaluation of recent scientific data concerning the emerging dual role of HHVs in malignant brain pathology, either as potential causative agents or as immunotherapeutic tools in the fight against these devastating diseases.
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17
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Saito T, Muragaki Y, Maruyama T, Abe K, Komori T, Amano K, Eguchi S, Nitta M, Tsuzuki S, Fukui A, Kawamata T. Mucosal thickening of the maxillary sinus is frequently associated with diffuse glioma patients and correlates with poor survival prognosis of GBM patients: comparative analysis to meningioma patients. Neurosurg Rev 2021; 44:3249-3258. [PMID: 33537891 DOI: 10.1007/s10143-021-01490-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/06/2021] [Accepted: 01/26/2021] [Indexed: 11/24/2022]
Abstract
Glioma patients were frequently associated with mucosal thickening of the maxillary sinus (MTMS), which reflects mucosal inflammation. We suspected that MTMS is associated with impaired mucosal immune response and correlated with dysfunction in the anti-tumor immune response in diffuse glioma patients. Therefore, the aim of this study was to determine whether the occurrence of diffuse glioma is correlated with MTMS compared to meningioma and control groups. Furthermore, we investigated whether MTMS is associated with overall survival (OS) in glioblastoma (GBM) patients. This study included 343 patients with newly diagnosed diffuse gliomas and 218 patients with meningioma treated at our institution between 2015 and 2018. As control, 201 patients with headache who did not have an intracranial organic lesion were included. Using three-axis MR images, we evaluated the incidence of MTMS in all patients. Additionally, we investigated the relationship between MTMS and OS. The incidence of MTMS in patients with diffuse glioma was significantly higher than that in the meningioma (p < .0001) and control groups (p < .0001). In 128 patients with GBM, MTMS status correlated significantly with OS (p = .0064). We revealed that the incidence of MTMS is significantly associated with patients with diffuse glioma. This suggests that MTMS is indirectly involved in the occurrence of diffuse gliomas. Furthermore, the presence of MTMS correlated significantly with shorter OS in GBM patients, indicating that MTMS is involved in suppression of anti-tumor immune response. Preoperative recognition of MTMS might be useful for improving the clinical management of GBM patients.
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Affiliation(s)
- Taiichi Saito
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan. .,Faculty of Advanced Techno-Surgery, Tokyo Women's Medical University, Tokyo, Japan.
| | - Yoshihiro Muragaki
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.,Faculty of Advanced Techno-Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Takashi Maruyama
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Kayoko Abe
- Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Takashi Komori
- Department of Laboratory Medicine and Pathology (Neuropathology), Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Kosaku Amano
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Seiichiro Eguchi
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Masayuki Nitta
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Shunsuke Tsuzuki
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Atsushi Fukui
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Takakazu Kawamata
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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18
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Dannhorn A, Ling S, Powell S, McCall E, Maglennon G, Jones GN, Pierce AJ, Strittmatter N, Hamm G, Barry ST, Bunch J, Goodwin RJA, Takats Z. Evaluation of UV-C Decontamination of Clinical Tissue Sections for Spatially Resolved Analysis by Mass Spectrometry Imaging (MSI). Anal Chem 2021; 93:2767-2775. [PMID: 33474935 DOI: 10.1021/acs.analchem.0c03430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Clinical tissue specimens are often unscreened, and preparation of tissue sections for analysis by mass spectrometry imaging (MSI) can cause aerosolization of particles potentially carrying an infectious load. We here present a decontamination approach based on ultraviolet-C (UV-C) light to inactivate clinically relevant pathogens such as herpesviridae, papovaviridae human immunodeficiency virus, or SARS-CoV-2, which may be present in human tissue samples while preserving the biodistributions of analytes within the tissue. High doses of UV-C required for high-level disinfection were found to cause oxidation and photodegradation of endogenous species. Lower UV-C doses maintaining inactivation of clinically relevant pathogens to a level of increased operator safety were found to be less destructive to the tissue metabolome and xenobiotics. These doses caused less alterations of the tissue metabolome and allowed elucidation of the biodistribution of the endogenous metabolites. Additionally, we were able to determine the spatially integrated abundances of the ATR inhibitor ceralasertib from decontaminated human biopsies using desorption electrospray ionization-MSI (DESI-MSI).
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Affiliation(s)
- Andreas Dannhorn
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, 605 SAF Building, South Kensington Campus, London CB4 0FZ, U.K.,Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge SW7 2AZ, U.K
| | - Stephanie Ling
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge SW7 2AZ, U.K
| | - Steven Powell
- Safety, Health and Environment (SHE), Cambridge Operations, BioPharmaceuticals R&D, AstraZeneca, Cambridge CB4 0FZ, U.K
| | - Eileen McCall
- Safety, Health and Environment (SHE), Cambridge Operations, BioPharmaceuticals R&D, AstraZeneca, Cambridge CB4 0FZ, U.K
| | - Gareth Maglennon
- Oncology Safety, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge CB22 3AT, U.K
| | - Gemma N Jones
- Translational Medicine, Oncology R&D, AstraZeneca, Cambridge SG8 6EH, U.K
| | - Andrew J Pierce
- Translational Medicine, Oncology R&D, AstraZeneca, Cambridge SG8 6EH, U.K
| | - Nicole Strittmatter
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge SW7 2AZ, U.K
| | - Gregory Hamm
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge SW7 2AZ, U.K
| | - Simon T Barry
- Bioscience, Discovery, Oncology R&D, AstraZeneca, Cambridge CB2 0RE, U.K
| | - Josephine Bunch
- National Centre of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical Laboratory, Teddington TW11 0LW, U.K
| | - Richard J A Goodwin
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge SW7 2AZ, U.K.,Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Zoltan Takats
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, 605 SAF Building, South Kensington Campus, London CB4 0FZ, U.K
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19
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Karimzadeh M, Tabibzadeh A, Moghoofei M, Abbasi S, Sadri Nahand J, Sadeghii F, Karbalaie Niya MH, Keyvani H, Bokharaei-Salim F, Esghaei M, Esghaei M. As Evidence-Based Tumorigenic Role of Epstein-Barr Virus miR-BART1-3p in Neurological Tumors. Asian Pac J Cancer Prev 2021; 22:257-266. [PMID: 33507707 PMCID: PMC8184183 DOI: 10.31557/apjcp.2021.22.1.257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Central nervous system tumors are a diverse group of tumors that account for 2% of all adult cancers and 17% of childhood malignancies. Several internal and external risk factors are involved in the development of this cancer such as viral infections. The aim of this study was to the determination of the EBV infection frequency and the expression level of miR-122 and miR-BART in CNS tumors samples. METHODS One hundred and thirty-eight fresh tissue sample (106 case and 32 control) was collected from CNS specimens. The presence of Epstein-Barr virus (EBV) DNA was examined by PCR assay and the expression level of miR-122 and miR-BART were evaluated by using real-time PCR assay in CNS tissue samples. RESULTS EBV DNA was detected in 17% (18 of 106) of tumors tissue samples and 6.4% (2 of 32) of control samples. according to results, there was a significant relationship between the presence of EBV-DNA with CNS tumors. Additionally, the expression level of miR-122 was significantly downregulated in the EBV-positive sample compared to that of the EBV-negative sample. Also, the level of EBV-BART1-3p expression was significantly higher in EBV-positive tumors samples than EBV-positive normal samples. CONCLUSION The results of this study suggest that the EBV could change the condition of cancer cells by altering the expression of miR-122 and EBV-BART1-3p and maybe contribute to the development of cancer cells. However, the role of viral infections in CNS cancer requires further studies. <br />.
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Affiliation(s)
- Mohammad Karimzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Tabibzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Moghoofei
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saeedeh Abbasi
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Javid Sadri Nahand
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farzin Sadeghii
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Hossin Keyvani
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farah Bokharaei-Salim
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Laboratory of National Center, Vice Chancellor for Health, Iran University of Medical Sciences, Tehran, Iran
| | - Moein Esghaei
- Cognitive Neuroscience Laboratory, German Primate Center - Leibniz Institute for Primate Research, Göttingen, Germany
| | - Maryam Esghaei
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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20
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Human alpha and beta herpesviruses and cancer: passengers or foes? Folia Microbiol (Praha) 2020; 65:439-449. [PMID: 32072398 DOI: 10.1007/s12223-020-00780-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 02/10/2020] [Indexed: 10/25/2022]
Abstract
Based on seroepidemiological studies, human herpes simplex virus types 1 and 2 (HSV-1, HSV-2) are put in relation with a number of cancer diseases; however, they do not appear to play a direct role, being only considered cofactors. Their ability to transform the cells in vitro could be demonstrated experimentally by removing their high lytic ability by a certain dose of UV radiation or by photoinactivation in the presence of photosensitizers, such as neutral red or methylene blue, or culturing under conditions suppressing their lytic activity. However, recent studies indicate that UV irradiated or photoinactivated HSV-1 and HSV-2, able to transform non-transformed cells, behave differently in transformed cells suppressing their transformed phenotype. Furthermore, both transforming and transformed phenotype suppressing activities are pertaining only to non-syncytial virus strains. There are some proposed mechanisms explaining their transforming activity. According to the "hit and run" mechanism, viral DNA induces only initiation of transformation by interacting with cellular DNA bringing about mutations and epigenetic changes and is no longer involved in other processes of neoplastic progression. According to the "hijacking" mechanism, virus products in infected cells may activate signalling pathways and thus induce uncontrolled proliferation. Such a product is e.g. a product of HSV-2 gene designated ICP10 that encodes an oncoprotein RR1PK that activates the Ras pathway. In two cases of cancer, in the case of serous ovarian carcinoma and in some prostate tumours, virus-encoded microRNAs (miRNAs) were detected as a possible cofactor in tumorigenesis. And, recently described herpes virus-associated growth factors with transforming and transformation repressing activity might be considered important factors playing a role in tumour formation. And finally, there is a number of evidence that HSV-2 may increase the risk of cervical cancer after infection with human papillomaviruses. A similar situation is with human cytomegalovirus; however, here, a novel mechanism named oncomodulation has been proposed. Oncomodulation means that HCMV infects tumour cells and modulates their malignant properties without having a direct effect on cell transformation.
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21
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Maleki F, Sadigh ZA, Sadeghi F, Muhammadnejad A, Farahmand M, Parvin M, Shirkoohi R. Human cytomegalovirus infection in Iranian glioma patients correlates with aging and tumor aggressiveness. J Med Virol 2020; 92:1266-1276. [PMID: 31944314 DOI: 10.1002/jmv.25673] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 01/08/2020] [Indexed: 12/18/2022]
Abstract
Human cytomegalovirus (HCMV), as a ubiquitous and opportunistic virus, is a matter for consideration in broad-spectrum diseases, specifically in immunocompromised individuals. In recent decades, many studies that have evaluated the role of HCMV in inflammation and malignancies, especially in high-grade gliomas, have reported inconsistent results. Thus, this study was conducted to analyze 97 primary gliomas for human CMV UL83 gene and protein through TaqMan real-time polymerase chain reaction and immunohistochemistry, respectively. The results were positive for the UL83 gene and pp65 protein in 71% and 24% of samples, respectively. The frequency of HCMV was significantly higher in glioblastomas than other glioma grades (P < .01 and P < .05 for the UL83 gene and protein, respectively). In addition, the association between the prevalence of HCMV and aging strengthened the virus reactivation hypothesis in gliomas. In conclusion, a high frequency of HCMV infection was found in gliomas that correlated with tumor aggressiveness and age. This study recommends a thorough investigation to determine HCMV infection in gliomas to improve the existing knowledge of its role in glial tumors, its prognostic value, and possible efficient antiviral target therapy.
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Affiliation(s)
- Faezeh Maleki
- Human Viral Vaccine Department, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Alborz Province, Iran
| | - Zohreh-Azita Sadigh
- Human Viral Vaccine Department, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Alborz Province, Iran
| | - Farzin Sadeghi
- Department of Microbiology, Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ahad Muhammadnejad
- Department of Molecular Genetics, Cancer Biology Research Center, Cancer Institute of Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Farahmand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Tehran Province, Iran
| | - Mahmoud Parvin
- Department of Pathology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Tehran Province, Iran
| | - Reza Shirkoohi
- Department of Molecular Genetics, Cancer Biology Research Center, Cancer Institute of Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.,Department of Molecular Genetics, Cancer Research Center, Cancer Institute of Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
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22
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Wells MJ, Jacobson S, Levine PH. An evaluation of HHV-6 as an etiologic agent in Hodgkin lymphoma and brain cancer using IARC criteria for oncogenicity. Infect Agent Cancer 2019; 14:31. [PMID: 31709003 PMCID: PMC6833260 DOI: 10.1186/s13027-019-0248-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 09/26/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Human herpesvirus-6 (HHV-6) is a ubiquitous double-stranded DNA virus that can cause roseola infantum, encephalitis, and seizure disorders. Several studies have shown an association between HHV-6 and cancer but confirmation of an etiologic role is lacking. We reviewed the criteria for viral causation of cancer used by The International Agency for Research on Cancer (IARC) for six oncogenic viruses and applied criteria to published reports of HHV-6 and its association with Hodgkin lymphoma and brain tumors. METHODS Our major criteria for oncogenicity were finding evidence of the virus in every tumor cell and prevention of the tumor by an antiviral vaccine. Our six minor criteria included: 1) suggestive serologic correlation, such as higher virus antibody levels in cases compared to controls; 2) evidence of the virus in some but not all tumor cells, and 3) time space clustering. We focused on Epstein-Barr virus (EBV) as the primary virus for comparison as HHV-6 and EBV are both Herpesviridae, ubiquitous infections, and EBV is well-accepted as a human oncovirus. Particular attention was given to Hodgkin lymphoma (HL) and brain cancer as these malignancies have been the most studied. RESULTS No studies reported HHV-6 satisfying either of the major criteria for oncogenicity. Of the minor criteria used by IARC, serologic studies have been paramount in supporting EBV as an oncogenic agent in all EBV-associated tumors, but not for HHV-6 in HL or brain cancer. Clustering of cases was suggestive for both HL and brain cancer and medical intervention suggested by longer survival in patients treated with antiviral agents was reported for brain cancer. CONCLUSION There is insufficient evidence to indicate HHV-6 is an etiologic agent with respect to HL and brain cancers. We suggest that methods demonstrating EBV oncogenicity be applied to HHV-6. It is important that one study has found HHV-6 in all cancer cells in oral cancer in a region with elevated HHV-6 antibodies and therefore HHV-6 can still be considered a possible human oncogenic virus.
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Affiliation(s)
- Michael J. Wells
- School of Community and Population Health, University of New England, 716 Stevens Ave, Portland, ME 04103 USA
| | - Steven Jacobson
- National Institutes of Health, National Institute of Neurological Disorders and Stroke, Viral Immunology Section, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Paul H. Levine
- College of Public Health, University of Nebraska, 984355 Medical Center, Omaha, NE 68198 USA
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Limam S, Missaoui N, Mestiri S, Yacoubi M, Krifa H, Selmi B, Mokni M. Epstein-Barr virus infection in gliomas. Curr Res Transl Med 2019; 67:129-133. [DOI: 10.1016/j.retram.2019.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/07/2019] [Accepted: 06/30/2019] [Indexed: 12/23/2022]
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24
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Blaylock RL. Accelerated cancer aggressiveness by viral oncomodulation: New targets and newer natural treatments for cancer control and treatment. Surg Neurol Int 2019; 10:199. [PMID: 31768279 PMCID: PMC6826277 DOI: 10.25259/sni_361_2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 06/19/2019] [Indexed: 12/12/2022] Open
Abstract
An infectious etiology for a number of cancers has been entertained for over 100 years and modern studies have confirmed that a number of viruses are linked to cancer induction. While a large number of viruses have been demonstrated in a number of types of cancers, most such findings have been dismissed in the past as opportunistic infections, especially with persistent viruses with high rates of infectivity of the world’s populations. More recent studies have clearly shown that while not definitely causing these cancers, these viruses appear capable of affecting the biology of these tumors in such a way as to make them more aggressive and more resistant to conventional treatments. The term oncomodulatory viruses has been used to describe this phenomenon. A number of recent studies have shown a growing number of ways these oncomodulatory viruses can alter the pathology of these tumors by affecting cell-signaling, cell metabolism, apoptosis mechanisms, cell-cell communication, inflammation, antitumor immunity suppression, and angiogenesis. We are also learning that much of the behavior of tumors depends on cancer stem cells and stromal cells within the tumor microenvironment, which participate in extensive, dynamic crosstalk known to affect tumor behavior. Cancer stem cells have been found to be particularly susceptible to infection by human cytomegalovirus. In a number of studies, it has been shown that while only a select number of cells are actually infected with the virus, numerous viral proteins are released into cancer and stromal cells in the microenvironment and these viral proteins are known to affect tumor behavior and aggressiveness.
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25
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Biganzoli P, Frutos MC, Venezuela F, Mosmann J, Kiguen A, Pavan J, Ferreyra L, Cuffini C. Detection of human herpesvirus 6 (HHV-6) and human herpesvirus 7 (HHV-7) DNA in endocervical samples from a positive and negative HPV woman of Córdoba, Argentina. J Clin Pathol 2019; 73:30-34. [PMID: 31315894 DOI: 10.1136/jclinpath-2019-205795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 11/03/2022]
Abstract
AIMS The purpose of the present study was to elucidate the presence of human herpesvirus 6A (HHV-6A), HHV-6B and HHV-7 in samples of the uterine cervix through detection of viral DNA. We analysed normal tissues, samples with low-grade squamous intraepithelial lesions (LSILs) and high-grade squamous intraepithelial lesions (HSILs). We correlated the presence of HHV-6 and HHV-7 with the finding of human papillomavirus (HPV) in mucosal samples. METHODS Cervical samples were examined and grouped as follows: group 1 (n=29), normal cytology; group 2 (n=61), samples with LSIL; group 3 (n=35), samples with HSIL. Molecular biology examinations were performed in all samples to detect HHV-6, HHV-7 and HPV DNA and to typify HHV-6 species. RESULTS Group 1: normal cytology and HPV (-): HHV-6: 6.8% (2/29), HHV-7: 79.3% (23/29); group 2: LSIL and HPV (-): HHV-6: 93.1% (27/29), HHV-7: 96.5% (28/29); LSIL and HPV (+): HHV-6: 0% (0/32), HHV-7: 90.6% (29/32); group 3: HSIL and HPV (-): HHV-6: 20% (2/10), HHV-7: 70% (7/10); HSIL HPV (+): HHV-6: 12% (3/25), HHV-7: 68% (17/25). HHV-6A DNA was not detected in any samples. CONCLUSIONS (1) Both HHV-6 and HHV-7 infect the mucosal cells of the cervix with higher prevalence of HHV-7. (2) The higher prevalence of HHV-6 in LSIL HPV (-) samples compared with those with normal cytology indicates that it constitutes a possible risk factor for atypia production. (3) The presence of HHV-7 in all samples questions its role in the production of atypia. (4) The finding of HHV-6 and HHV-7 suggests that the cervical mucosa is a possible transmission pathway for these viruses.
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Affiliation(s)
- Patricia Biganzoli
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina .,Medical Bacteriology and Virology, School of Medical Sciences, National University of Córdoba, Córdoba, Argentina
| | - María Celia Frutos
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina
| | - Fernando Venezuela
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina
| | - Jessica Mosmann
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina
| | - Ana Kiguen
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina
| | - Jorge Pavan
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina.,Medical Bacteriology and Virology, School of Medical Sciences, National University of Córdoba, Córdoba, Argentina
| | - Leonardo Ferreyra
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina.,Medical Bacteriology and Virology, School of Medical Sciences, National University of Córdoba, Córdoba, Argentina
| | - Cecilia Cuffini
- Virology Institute 'Dr. J. Vanella', School of Medical Sciences, National University of Córdoba, Cordoba, Cordoba, Argentina
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Pierce ES. Baseballs, tennis balls, livestock farm manure, the IDH1 mutation, endothelial cell proliferation and hypoxic pseudopalisading (granulomatous) necrosis: Mycobacterium avium subspecies paratuberculosis and the epidemiology, cellular metabolism and histology of diffuse gliomas, including glioblastoma. Open Vet J 2019; 9:5-12. [PMID: 31086759 PMCID: PMC6500868 DOI: 10.4314/ovj.v9i1.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/04/2019] [Indexed: 11/17/2022] Open
Abstract
An increased rate of diffuse gliomas, including glioblastoma, has been noted in livestock farmers in Western countries. Some researchers have suggested that a zoonotic virus or bacteria present in the livestock animal’s feces or manure may be a possible etiologic factor. Mycobacterium avium subspecies paratuberculosis (MAP), the cause of a chronic enteropathy in domestic livestock and a probable zoonosis, is heavily excreted in an infected animal’s feces or manure, contaminating soil and ground on the animal’s farm. Once excreted in an animal’s feces, MAP lasts indefinitely in a dormant but viable form, and easily spreads outside farms to the surrounding environment. MAP’s presence throughout the soil in countries where MAP infection of domestic livestock is extensive and long-standing may explain the increased rates of glioblastoma in tennis and baseball players who handle balls coated with MAP-contaminated dirt. MAP infection is consistent with glioblastoma’s two defining histopathologic characteristics: endothelial cell proliferation and pseudopalisading necrosis. MAP is a non-tuberculous or atypical mycobacterium, which can cause hypoxic necrotizing granulomas, granulomas that resemble areas of pseudopalisading necrosis. There are known bacterial causes of endothelial cell proliferation. Almost unique amongst intracellular bacteria, MAP’s variant isocitrate dehydrogenase 1 (IDH1) enzyme, a type 2-oxoglutarate ferredoxin oxidoreductase, can use a host cell’s cytosolic α-ketoglutarate in its own Krebs or tricarboxylic acid cycle. MAP’s ability to use a host cell’s α-ketoglutarate may explain the survival advantage of the cytosolic IDH1 enzyme mutation for patients with diffuse gliomas including glioblastoma, astrocytoma, and oligdendroglioma, a mutation that results in a reduced supply of cytosolic α-ketoglutarate. MAP may therefore be one possible infectious cause of glioblastoma and the other histologic categories of diffuse glioma.
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Affiliation(s)
- Ellen S Pierce
- 13212 East Blossey Avenue, Spokane Valley, Washington, USA
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27
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Aljuhani SH, Bamaroof SA, Alghamdi TH, Almogbel AA, Alkhammash AS, Alkhammash BS, Bahusayn AA, Bangash MH, Baeesa SS, Chaudhary AG, Abuzenadah AM, Mirza AA, Saka MY, Hussein DM. Public awareness of central nervous system tumors in the Kingdom of Saudi Arabia. NEUROSCIENCES (RIYADH, SAUDI ARABIA) 2018; 23:227-237. [PMID: 30007999 PMCID: PMC8015579 DOI: 10.17712/nsj.2018.3.20180055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 03/14/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate individuals` knowledge about central nervous system tumors (CNST) signs and symptoms and risk factors, as well as their readiness to seek medical advice. The signs and symptoms associated with CNSTs are often vague, and failure to recognize them could lead to delays in seeking help and possibly fatal results. METHODS This was a cross-sectional survey that utilized 2 delivery methods. A total of 1,500 personally delivered and 1,500 online self-administered questionnaires were completed in parallel between June 2015 and June 2016 for the occupants of the Kingdom of Saudi Arabia. RESULTS Significant differences were observed for the sociodemographic characteristics of participants recruited via the 2 methods. The most recognized symptom was "Headaches" (45.2%), and the most recognized risk factor was "Radioactive location/occupation" (84.1%). Overall knowledge scores were low, significantly predicted by employment and cancer contact (p<0.05), while the scores significantly higher for participants who were willing to see their doctors within a week (p<0.005). The most recognized barrier to seeking help was "Worry about what the doctor might find" (74.0%). CONCLUSION The level of awareness of CNSTs was low. Using a questionnaire delivered in 2 different ways enabled the recruitment of sample pools with different sociodemographic characteristics.
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Affiliation(s)
- Shahad H. Aljuhani
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Saja A. Bamaroof
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Thoraya H. Alghamdi
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Alhanoof A. Almogbel
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Alhanof S. Alkhammash
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Batool S. Alkhammash
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Amjad A. Bahusayn
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mohamad H. Bangash
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Saleh S. Baeesa
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Adeel G. Chaudhary
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Adel M. Abuzenadah
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Ahmed A. Mirza
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mohamad Y. Saka
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Deema M. Hussein
- From the Faculty of Applied Medical Sciences (Aljuhani, Bamaroof, Alghamdi, Almogbel, Alkhammash A, Alkhammash B, Bahusayn, Chaudhary, Abuzenadah, Mirza), Division of Neurosurgery (Bangash, Baeesa), Center of Excellence in Genomic Medicine Research (Chaudhary), and from King Fahd Medical Research Center (Abuzenadah, Saka, Hussein), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
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Akhtar S, Vranic S, Cyprian FS, Al Moustafa AE. Epstein-Barr Virus in Gliomas: Cause, Association, or Artifact? Front Oncol 2018; 8:123. [PMID: 29732319 PMCID: PMC5919939 DOI: 10.3389/fonc.2018.00123] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/04/2018] [Indexed: 12/17/2022] Open
Abstract
Gliomas are the most common malignant brain tumors and account for around 60% of all primary central nervous system cancers. Glioblastoma multiforme (GBM) is a grade IV glioma associated with a poor outcome despite recent advances in chemotherapy. The etiology of gliomas is unknown, but neurotropic viruses including the Epstein–Barr virus (EBV) that is transmitted via salivary and genital fluids have been implicated recently. EBV is a member of the gamma herpes simplex family of DNA viruses that is known to cause infectious mononucleosis (glandular fever) and is strongly linked with the oncogenesis of several cancers, including B-cell lymphomas, nasopharyngeal, and gastric carcinomas. The fact that EBV is thought to be the causative agent for primary central nervous system (CNS) lymphomas in immune-deficient patients has led to its investigations in other brain tumors including gliomas. Here, we provide a review of the clinical literature pertaining to EBV in gliomas and discuss the possibilities of this virus being simply associative, causative, or even an experimental artifact. We searched the PubMed/MEDLINE databases using the following key words such as: glioma(s), glioblastoma multiforme, brain tumors/cancers, EBV, and neurotropic viruses. Our literature analysis indicates conflicting results on the presence and role of EBV in gliomas. Further comprehensive studies are needed to fully implicate EBV in gliomagenesis and oncomodulation. Understanding the role of EBV and other oncoviruses in the etiology of gliomas, would likely open up new avenues for the treatment and management of these, often fatal, CNS tumors.
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Affiliation(s)
| | - Semir Vranic
- College of Medicine, Qatar University, Doha, Qatar
| | | | - Ala-Eddin Al Moustafa
- College of Medicine, Qatar University, Doha, Qatar.,Biomedical Research Centre, Qatar University, Doha, Qatar.,Oncology Department, McGill University, Montreal, QC, Canada
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29
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Di Bonito P, Iaconelli M, Gheit T, Tommasino M, Della Libera S, Bonadonna L, La Rosa G. Detection of oncogenic viruses in water environments by a Luminex-based multiplex platform for high throughput screening of infectious agents. WATER RESEARCH 2017; 123:549-555. [PMID: 28704770 DOI: 10.1016/j.watres.2017.06.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 05/27/2023]
Abstract
Recent studies documented the detection of viruses strongly associated with human cancer in urban sewages and other water environments worldwide. The aim of this study was to estimate the occurrence of human oncogenic viruses in environmental samples (sewage, river, marine, and pool/spa water) using highly sensitive and specific multiplex bead-based assays (Luminex technology). A total of 33 samples were analysed for 140 oncogenic viral agents, including mucosal and cutaneous human papillomaviruses (HPVs), human polyomaviruses (HPyV), human herpesviruses (HHV) and mouse mammary tumour virus (MMTV). Eighty-eight percent of the samples tested positive for at least one viral pathogen and the simultaneous presence of more than one virus was frequent (mean number of positivities/sample = 3.03). A total of 30 different Alpha, Beta and Gamma HPVs were detected, including mucosal and cutaneous types. The high-risk type HPV16 was the most frequently detected virus, identified in 73% of the samples. Of the 12 HPyVs tested, only two (BKPyV and MCPyV) were detected. At least one of these two was present in 48% of the samples. MMTV was detected in 21% of the samples, while herpesviruses - HHV-6 and HHV-1 - were detected in two samples (6%). The present study is the first to provide a comprehensive picture of the occurrence of oncogenic viruses belonging to different families and species in diverse water environments, and the first to successfully use, in environmental samples, a Luminex-based multiplex platform for high throughput screening of infectious agents. Our findings, showing that oncogenic viruses are ubiquitous in water environments, pave the way for future studies on the fate of these pathogens in water environments as well as on their potential for transmission via the waterborne route.
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Affiliation(s)
- P Di Bonito
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - M Iaconelli
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - T Gheit
- International Agency for Research on Cancer, 69372 Lyon Cedex 08, France
| | - M Tommasino
- International Agency for Research on Cancer, 69372 Lyon Cedex 08, France
| | - S Della Libera
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - L Bonadonna
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - G La Rosa
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
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30
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Georgakis MK, Ntinopoulou E, Chatzopoulou D, Petridou ET. Season of birth and primary central nervous system tumors: a systematic review of the literature with critical appraisal of underlying mechanisms. Ann Epidemiol 2017; 27:593-602.e3. [DOI: 10.1016/j.annepidem.2017.08.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 07/20/2017] [Accepted: 08/15/2017] [Indexed: 01/28/2023]
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Strojnik T, Duh D, Lah TT. Prevalence of Neurotropic Viruses in Malignant Glioma and Their Onco-Modulatory Potential. ACTA ACUST UNITED AC 2017; 31:221-229. [PMID: 28358704 DOI: 10.21873/invivo.11049] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/28/2016] [Accepted: 01/06/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND the association between infectious agents and tumour aetiology is relevant in about 20% of cases. PATIENTS AND METHODS We tested high-grade glioma tissues from 45 patients for the presence of viral nucleic acids of six herpes viruses, human adenoviruses (A-G), and two neurotropic human viruses (enteroviruses, tick-borne encephalitis virus). Real-time polymerase chain reaction was used with immunolabelling. RESULTS Three species of herpes viruses were detected: HSV-2, Epstein-Barr virus (EBV), HHV-6, and one human enterovirus. Plasma of these patients was not infected with viruses. In sera of patients, low HSV-1 and HSV-2 immunoreactivity were found in five cases, although these were not detected in their tumour tissue. CONCLUSION Certain common viruses (HSV-1, HSV-2, EBV, human cytomegalovirus) are chronically present in the sera of patients with glioblastoma, but not necessarily in their tissues. Possibly both are associated with glioma progression, as we only found viruses in glioblastoma multiforme, but not in lower stages of glioma. Low titres of viruses in the blood indicate chronic viral virulence.
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Affiliation(s)
- Tadej Strojnik
- Department of Neurosurgery, University Clinical Centre Maribor, Maribor, Slovenia .,Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Darja Duh
- Department for Medical Microbiology Maribor, National Laboratory of Health, Environment and Food (NLZOH), Maribor, Slovenia
| | - Tamara T Lah
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia.,Faculty of Chemistry and Chemical Engineering, University of Ljubljana, Ljubljana, Slovenia
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Usui Y, Rao NA, Takase H, Tsubota K, Umazume K, Diaz-Aguilar D, Kezuka T, Mochizuki M, Goto H, Sugita S. Comprehensive polymerase chain reaction assay for detection of pathogenic DNA in lymphoproliferative disorders of the ocular adnexa. Sci Rep 2016; 6:36621. [PMID: 27830722 PMCID: PMC5103257 DOI: 10.1038/srep36621] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 10/17/2016] [Indexed: 12/13/2022] Open
Abstract
Infectious agents have been identified as a major cause of specific types of human cancers worldwide. Several microorganisms have been identified as potential aggravators of ocular adnexal neoplasms; however, given the rarity of these neoplasms, large epidemiological studies are difficult to coordinate. This study aimed to conduct an exhaustive search for pathogenic DNA in lymphoproliferative disorders (LPD) of the ocular adnexa in a total of 70 patients who were diagnosed with LPD of the ocular adnexa between 2008 and 2013. Specimens were screened for bacterial, viral, fungal, and parasitic DNA by multiplex polymerase chain reaction (PCR) and quantitative real-time PCR. Among cases of conjunctival mucosa-associated lymphoid tissue lymphoma, human herpes virus (HHV)-6, HHV-7, chlamydia, Epstein-Barr virus (EBV) and bacterial 16S ribosomal DNA were detected. In cases of IgG4-related ocular disease, similar pathogens were detected but in a larger number of patients. Our PCR assays detected DNAs of various infectious agents in tumor specimens, especially HHV6, HHV7, and EBV, with different positive rates in various types of LPD. Chronic inflammatory stimulation or activation of oncogenes from these infectious agents might be involved in the pathogenesis of LPD of the ocular adnexa.
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Affiliation(s)
- Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan
| | - Narsing A. Rao
- Department of Ophthalmology, University of Southern California, USA
| | - Hiroshi Takase
- Department of Ophthalmology & Visual Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan
| | - Kazuhiko Umazume
- Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan
| | - Daniel Diaz-Aguilar
- David Geffen School of Medicine, University of California, 10833 Le Conte Ave, Los Angeles, CA 90095
| | - Takeshi Kezuka
- Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan
| | - Manabu Mochizuki
- Department of Ophthalmology & Visual Science, Tokyo Medical and Dental University, Tokyo, Japan
- Miyata Eye Hospital, Miyakonojo, Japan
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan
| | - Sunao Sugita
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan
- Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan
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Wojcik DP. Primary brain tumors and mobile cell phone usage. Cancer Epidemiol 2016; 44:123-124. [DOI: 10.1016/j.canep.2016.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 07/26/2016] [Accepted: 08/02/2016] [Indexed: 12/23/2022]
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Lin CTM, Leibovitch EC, Almira-Suarez MI, Jacobson S. Human herpesvirus multiplex ddPCR detection in brain tissue from low- and high-grade astrocytoma cases and controls. Infect Agent Cancer 2016; 11:32. [PMID: 27462365 PMCID: PMC4960850 DOI: 10.1186/s13027-016-0081-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 05/25/2016] [Indexed: 11/19/2022] Open
Abstract
Background Glioblastoma (GBM) is a fatal CNS malignancy, representing 50 % of all gliomas with approximately 12–18 months survival time after initial diagnosis. Recently, the human herpesvirus cytomegalovirus (CMV) has been suggested to have an oncogenic role, yet this association remains controversial. In addition, human herpesvirus 6 (HHV-6) and Epstein-Barr virus (EBV) have also been associated with low-grade gliomas, but few studies have examined HHV-6 and EBV in glioblastomas. Droplet digital PCR (ddPCR) is a highly precise diagnostic tool that enables the absolute quantification of target DNA. This study examines the association between multiple human herpesviruses and astrocytomas. Methods This study analyzed 112 brain tissue specimens, including 45 glioblastoma, 12 astrocytoma grade III, 2 astrocytoma grade II, 4 astrocytoma grade I, and 49 controls. All brain tissue samples were de-identified and pathologically confirmed. Each tissue block was sectioned for DNA extraction and CMV, EBV, HHV-6A and HHV-6B, and a cellular housekeeping gene were amplified by ddPCR. Results Neither CMV nor HHV-6A were detected in any of the astrocytoma samples. However, HHV-6B (p = 0.147) and EBV (p = 0.049) had a higher positivity frequency in the GBM compared to the controls. Conclusion The undetectable CMV DNA in the astrocytoma cohort does not support the observation of an increased prevalence of CMV DNA in GBM, as reported in other studies. EBV has a significantly higher positivity in the GBM cohort compared to the controls, while HHV-6B has a higher but not statistically significant positivity in the case cohort. Whether these viruses play an oncogenic role in GBM remains to be further investigated.
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Affiliation(s)
- Cheng-Te Major Lin
- The National Institute of Neurological Disorders and Stroke, National Institutes of Health, BG 10 RM 5C103 10 Center Dr., Bethesda, MD 20892 USA ; School of Medicine and Health Sciences, The George Washington University, Ross Hall 2300 Eye Street, NW, Washington, DC 20037 USA
| | - Emily C Leibovitch
- The National Institute of Neurological Disorders and Stroke, National Institutes of Health, BG 10 RM 5C103 10 Center Dr., Bethesda, MD 20892 USA ; School of Medicine and Health Sciences, The George Washington University, Ross Hall 2300 Eye Street, NW, Washington, DC 20037 USA
| | - M Isabel Almira-Suarez
- School of Medicine and Health Sciences, The George Washington University, Ross Hall 2300 Eye Street, NW, Washington, DC 20037 USA
| | - Steven Jacobson
- The National Institute of Neurological Disorders and Stroke, National Institutes of Health, BG 10 RM 5C103 10 Center Dr., Bethesda, MD 20892 USA
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Sardi I, Lucchesi M, Becciani S, Facchini L, Guidi M, Buccoliero AM, Moriondo M, Baroni G, Stival A, Farina S, Genitori L, de Martino M. Absence of human cytomegalovirus infection in childhood brain tumors. Am J Cancer Res 2015; 5:2476-2483. [PMID: 26396923 PMCID: PMC4568783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 06/25/2015] [Indexed: 06/05/2023] Open
Abstract
Human cytomegalovirus (HCMV) is a common human pathogen which induces different clinical manifestations related to the age and the immune conditions of the host. HCMV infection seems to be involved in the pathogenesis of adult glioblastomas. The aim of our study was to detect the presence of HCMV in high grade gliomas and other pediatric brain tumors. This hypothesis might have important therapeutic implications, offering a new target for adjuvant therapies. Among 106 pediatric patients affected by CNS tumors we selected 27 patients with a positive HCMV serology. The serological analysis revealed 7 patients with positive HCMV IGG (≥14 U/mL), whom had also a high HCMV IgG avidity, suggesting a more than 6 months-dated infection. Furthermore, HCMV IGM were positive (≥22 U/mL) in 20 patients. Molecular and immunohistochemical analyses were performed in all the 27 samples. Despite a positive HCMV serology, confirmed by ELISA, no viral DNA was shown at the PCR analysis in the patients' neoplastic cells. At immunohistochemistry, no expression of HCMV antigens was observed in tumoral cells. Our results are in agreement with recent results in adults which did not evidence the presence of HCMV genome in glioblastoma lesions. We did not find any correlation between HCMV infection and pediatric CNS tumors.
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Affiliation(s)
- Iacopo Sardi
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | - Maurizio Lucchesi
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | - Sabrina Becciani
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | - Ludovica Facchini
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | - Milena Guidi
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | | | - Maria Moriondo
- Immunology Unit, Meyer Children’s HospitalFlorence, Italy
| | | | - Alessia Stival
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | - Silvia Farina
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
| | - Lorenzo Genitori
- Department of Neuroscience, Neurosurgery Unit, Meyer Children’s HospitalFlorence, Italy
| | - Maurizio de Martino
- Department of Paediatrics, Neuro-oncology Unit, Meyer Children’s Hospital and Department of Health Sciences, University of FlorenceFlorence, Italy
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Khan I, Bangash M, Baeesa S, Jamal A, Carracedo A, Alghamdi F, Qashqari H, Abuzenadah A, AlQahtani M, Damanhouri G, Chaudhary A, Hussein D. Epidemiological trends of histopathologically WHO classified CNS tumors in developing countries: systematic review. Asian Pac J Cancer Prev 2015; 16:205-16. [PMID: 25640353 DOI: 10.7314/apjcp.2015.16.1.205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Many developing countries are lagging behind in reporting epidemiological data for individual central nervous system (CNS) tumors. This paper aimed to elicit patterns for the epidemiology of individual World Health Organization (WHO) classified CNS tumors in countries registered by WHO as "developing". MATERIALS AND METHODS Cyber search was carried out through 66 cancer networks/registries and 181 PubMed published papers that reported counts of CNS tumors for the period of 2009-2012. The relationship between the natural log of incidence Age Standardized Rate (ASR) reported by Globocan and Latitude/ Longitude was investigated. RESULTS Registries for 21 countries displayed information related to CNS tumors. In contrast tends for classified CNS tumor cases were identified for 38 countries via 181 PubMed publications. Extracted data showed a majority of unclassified reported cases [PubMed (38 countries, 45.7%), registries (21 countries, 96.1%)]. For classified tumors, astrocytic tumors were the most frequently reported type [PubMed (38 countries, 1,245 cases, 15.7%), registries (21 countries, 627 cases, 1.99%]. A significant linear regression relationship emerged between latitudes and reported cases of CNS tumors. CONCLUSIONS Previously unreported trends of frequencies for individually classified CNS tumors were elucidated and a possible link of CNS tumors occurrence with geographical location emerged.
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Affiliation(s)
- Ishaq Khan
- Center of Excellence in Genomic Medicine, King Abdulaziz University, Jeddah, Saudi Arabia E-mail :
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Mølleskov-Jensen AS, Oliveira MT, Farrell HE, Davis-Poynter N. Virus-Encoded 7 Transmembrane Receptors. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2015; 129:353-93. [DOI: 10.1016/bs.pmbts.2014.10.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Cimino PJ, Zhao G, Wang D, Sehn JK, Lewis JS, Duncavage EJ. Detection of viral pathogens in high grade gliomas from unmapped next-generation sequencing data. Exp Mol Pathol 2014; 96:310-5. [PMID: 24704430 DOI: 10.1016/j.yexmp.2014.03.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 03/25/2014] [Indexed: 12/25/2022]
Abstract
Viral pathogens have been implicated in the development of certain cancers including human papillomavirus (HPV) in squamous cell carcinoma and Epstein-Barr virus (EBV) in Burkitt's lymphoma. The significance of viral pathogens in brain tumors is controversial, and human cytomegalovirus (HCMV) has been associated with glioblastoma (GBM) in some but not all studies, making the role of HCMV unclear. In this study we sought to determine if viral pathogen sequences could be identified in an unbiased manner from previously discarded, unmapped, non-human, next-generation sequencing (NGS) reads obtained from targeted oncology, panel-based sequencing of high grade gliomas (HGGs), including GBMs. Twenty one sequential HGG cases were analyzed by a targeted NGS clinical oncology panel containing 151 genes using DNA obtained from formalin-fixed, paraffin-embedded (FFPE) tissue. Sequencing reads that did not map to the human genome (average of 38,000 non-human reads/case (1.9%)) were filtered and low quality reads removed. Extracted high quality reads were then sequentially aligned to the National Center for Biotechnology Information (NCBI) non-redundant nucleotide (nt and nr) databases. Aligned reads were classified based on NCBI taxonomy database and all eukaryotic viral sequences were further classified into viral families. Two viral sequences (both herpesviruses), EBV and Roseolovirus were detected in 5/21 (24%) cases and in 1/21 (5%) cases, respectively. None of the cases had detectable HCMV. Of the five HGG cases with detectable EBV DNA, four had additional material for EBV in situ hybridization (ISH), all of which were negative for expressed viral sequence. Overall, a similar discovery approach using unmapped non-human NGS reads could be used to discover viral sequences in other cancer types.
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Affiliation(s)
- Patrick J Cimino
- Division of Neuropathology, Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States
| | - Guoyan Zhao
- Division of Laboratory and Genomic Medicine, Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States
| | - David Wang
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO, United States; Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States
| | - Jennifer K Sehn
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States
| | - James S Lewis
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States; Department of Otolaryngology Head and Neck Surgery, Washington University School of Medicine, Saint Louis, MO, United States
| | - Eric J Duncavage
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States.
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Iacovides D, Michael S, Achilleos C, Strati K. Shared mechanisms in stemness and carcinogenesis: lessons from oncogenic viruses. Front Cell Infect Microbiol 2013; 3:66. [PMID: 24400225 PMCID: PMC3872316 DOI: 10.3389/fcimb.2013.00066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 12/03/2013] [Indexed: 01/08/2023] Open
Abstract
A rise in technologies for epigenetic reprogramming of cells to pluripotency, highlights the potential of understanding and manipulating cellular plasticity in unprecedented ways. Increasing evidence points to shared mechanisms between cellular reprogramming and the carcinogenic process, with the emerging possibility to harness these parallels in future therapeutics. In this review, we present a synopsis of recent work from oncogenic viruses which contributes to this body of knowledge, establishing a nexus between infection, cancer, and stemness.
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Affiliation(s)
| | - Stella Michael
- Department of Biological Sciences, University of Cyprus Nicosia, Cyprus
| | - Charis Achilleos
- Department of Biological Sciences, University of Cyprus Nicosia, Cyprus
| | - Katerina Strati
- Department of Biological Sciences, University of Cyprus Nicosia, Cyprus
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40
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Alibek K, Mussabekova A, Kakpenova A, Duisembekova A, Baiken Y, Aituov B, Karatayeva N, Zhussupbekova S. Childhood cancers: what is a possible role of infectious agents? Infect Agent Cancer 2013; 8:48. [PMID: 24321500 PMCID: PMC4029297 DOI: 10.1186/1750-9378-8-48] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Accepted: 10/30/2013] [Indexed: 01/29/2023] Open
Abstract
The etiology of childhood cancers has been studied for more than 40 years. However, most if not all cancers occurring in children are attributed to unknown causes. This review is focused on the role of infections in cancer development and progression in children. The main infectious agents include human herpesviruses, polyoma viruses, and human papilloma viruses. It is known that infections can lead to carcinogenesis through various mechanisms, and most likely act in addition to genetic and environmental factors. Given the importance of the infectious etiology of childhood cancers, clinical implications and possible prevention strategies are discussed.
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Affiliation(s)
- Kenneth Alibek
- School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
- National Medical Holding, 2 Syganak Street, Astana 010000, Kazakhstan
| | - Assel Mussabekova
- Nazarbayev University Research and Innovation System, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Ainur Kakpenova
- Nazarbayev University Research and Innovation System, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Assem Duisembekova
- School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Yeldar Baiken
- Nazarbayev University Research and Innovation System, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Bauyrzhan Aituov
- Nazarbayev University Research and Innovation System, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Nargis Karatayeva
- School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
| | - Samal Zhussupbekova
- Nazarbayev University Research and Innovation System, 53 Kabanbay Batyr Avenue, Astana 010000, Kazakhstan
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Wylie KM, Weinstock GM, Storch GA. Virome genomics: a tool for defining the human virome. Curr Opin Microbiol 2013; 16:479-84. [PMID: 23706900 PMCID: PMC3755052 DOI: 10.1016/j.mib.2013.04.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/19/2013] [Accepted: 04/23/2013] [Indexed: 11/21/2022]
Abstract
High throughput, deep sequencing assays are powerful tools for gaining insights into virus-host interactions. Sequencing assays can discover novel viruses and describe the genomes of novel and known viruses. Genomic information can predict viral proteins that can be characterized, describe important genes in the host that control infections, and evaluate gene expression of viruses and hosts during infection. Sequencing can also describe variation and evolution of viruses during replication and transmission. This review recounts some of the major advances in the studies of virus-host interactions from the last two years, and discusses the uses of sequencing technologies relating to these studies.
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Affiliation(s)
- Kristine M Wylie
- The Genome Institute, Washington University School of Medicine, Campus Box 8501, 4444 Forest Park Avenue, St. Louis, MO 63108, United States.
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Kofman AV, Letson C, Dupart E, Bao Y, Newcomb WW, Schiff D, Brown J, Abounader R. The p53-microRNA-34a axis regulates cellular entry receptors for tumor-associated human herpes viruses. Med Hypotheses 2013; 81:62-7. [PMID: 23643704 DOI: 10.1016/j.mehy.2013.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 04/03/2013] [Accepted: 04/08/2013] [Indexed: 02/07/2023]
Abstract
A growing number of reports indicate the frequent presence of DNA sequences and gene products of human cytomegalovirus in various tumors as compared to adjacent normal tissues, the brain tumors being studied most intensely. The mechanisms underlying the tropism of human cytomegalovirus to the tumor cells or to the cells of tumor origin, as well as the role of the host's genetic background in virus-associated oncogenesis are not well understood. It is also not clear why cytomegalovirus can be detected in many but not in all tumor specimens. Our in silico prediction results indicate that microRNA-34a may be involved in replication of some human DNA viruses by targeting and downregulating the genes encoding a diverse group of proteins, such as platelet-derived growth factor receptor-alpha, complement component receptor 2, herpes simplex virus entry mediators A, B, and C, and CD46. Notably, while their functions vary, these surface molecules have one feature in common: they serve as cellular entry receptors for human DNA viruses (cytomegalovirus, Epstein-Barr virus, human herpes virus 6, herpes simplex viruses 1 and 2, and adenoviruses) that are either proven or suspected to be linked with malignancies. MicroRNA-34a is strictly dependent on its transcriptional activator tumor suppressor protein p53, and both p53 and microRNA-34a are frequently mutated or downregulated in various cancers. We hypothesize that p53-microRNA-34a axis may alter susceptibility of cells to infection with some viruses that are detected in tumors and either proven or suspected to be associated with tumor initiation and progression.
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Affiliation(s)
- Alexander V Kofman
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
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Amirian ES, Adler-Storthz K, Scheurer ME. Associations between human herpesvirus-6, human papillomavirus and cervical cancer. Cancer Lett 2013; 336:18-23. [PMID: 23624298 DOI: 10.1016/j.canlet.2013.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/17/2013] [Accepted: 04/17/2013] [Indexed: 01/29/2023]
Abstract
Cervical cancer (CxCa) is the second most common cancer among women globally. Human papillomavirus (HPV) infection is thought to be a necessary, but not sufficient, causal factor in CxCa development. Why some women are able to clear HPV infection with no adverse effects, whereas others develop cancer, remains unclear. HHV-6 has demonstrated transformative abilities and has been shown to be present in the genital tract. However, based on the current evidence, we cannot conclude that HHV-6 is a co-factor in HPV-associated carcinogenesis. Nonetheless, future research is warranted because of several crucial gaps in the literature.
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Affiliation(s)
- E Susan Amirian
- Dan L Duncan Cancer Center and Department of Pediatrics, Baylor College of Medicine, 1 Baylor Plaza MSBCM305, Houston, TX 77030, USA
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Amirian ES, Marquez-Do D, Bondy ML, Scheurer ME. Anti-human-cytomegalovirus immunoglobulin G levels in glioma risk and prognosis. Cancer Med 2013; 2:57-62. [PMID: 24133628 PMCID: PMC3797564 DOI: 10.1002/cam4.44] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 10/05/2012] [Accepted: 10/12/2012] [Indexed: 01/07/2023] Open
Abstract
The role of human cytomegalovirus (HCMV) in glioma development and progression remains controversial. The purpose of our study was to assess the potential associations between anti-HCMV antibodies (immunoglobulin G [IgG] and immunoglobulin M [IgM]) and glioma risk and prognosis using data from the Harris County Case–Control Study. Multivariable logistic regression models were utilized to estimate odds ratios and 95% confidence intervals (CI) for the associations between glioma status and antibody levels among glioma cases (n = 362) and cancer-free controls (n = 462). Hazard ratios and 95% CIs were calculated using Cox proportional hazards regression, adjusting for age, race, and sex, to determine if antibody levels were associated with survival over time among cases. Among IgG-positive participants, increasing anti-HCMV IgG levels were associated with decreasing glioma risk (P for trend = 0.0008), and those with the lowest level of anti-HCMV IgG (<10 U/mL) had the highest glioma risk, controlling for age, sex, and race/ethnicity (OR: 2.51, 95% CI: 1.42–4.43). Antibody levels were not associated with survival among glioma cases. Our study contributes new evidence toward the potential importance of the direct and indirect effects of HCMV infection in gliomagenesis.
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Affiliation(s)
- E Susan Amirian
- Dan L. Duncan Cancer Center, Baylor College of Medicine Houston, Texas
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Camous X, Calbo S, Picard D, Musette P. Drug Reaction with Eosinophilia and Systemic Symptoms: an update on pathogenesis. Curr Opin Immunol 2012; 24:730-5. [DOI: 10.1016/j.coi.2012.07.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 07/25/2012] [Indexed: 12/11/2022]
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Amirian ES, Scheurer ME. Chromosomally-integrated human herpesvirus 6 in familial glioma etiology. Med Hypotheses 2012; 79:193-6. [PMID: 22591997 DOI: 10.1016/j.mehy.2012.04.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 04/20/2012] [Indexed: 01/28/2023]
Abstract
Human herpesvirus 6 (HHV-6) is a highly neurotropic beta-herpesvirus with demonstrated transformative properties. HHV-6 infection has been implicated in the etiologies of cancers, including lymphoma and leukemia; conditions with brain involvement, including epilepsy and encephalitis; and other disorders. HHV-6 is also the only human herpesvirus that has been proven to integrate into the chromosomes of a proportion (1-12%) of infected individuals. Because several traditional genetic association studies have failed to identify a variant that can account for the established relationship between family history and glioma risk, the possibility that chromosomally-integrated HHV-6 (CI-HHV-6), as a heritable factor, may explain a proportion of familial glioma cases warrants evaluation. To test this hypothesis, the prevalence of CI-HHV-6 in familial glioma cases and related and unrelated cancer-free control groups should be compared. Among glioma-affected families, the inheritance pattern of CI-HHV-6 could be evaluated by constructing pedigrees. If CI-HHV-6 is found to be associated with familial glioma risk, this knowledge could potentially lead to the future development of novel therapeutic and preventive approaches, including vaccines and immunotherapies targeted at the HHV-6 sequences.
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Affiliation(s)
- E Susan Amirian
- Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
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Selection of a highly invasive neuroblastoma cell population through long-term human cytomegalovirus infection. Oncogenesis 2012; 1:e10. [PMID: 23552602 PMCID: PMC3412641 DOI: 10.1038/oncsis.2012.10] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The human cytomegalovirus (HCMV) is suspected to increase tumour malignancy by infection of cancer and/or stroma cells (oncomodulation). So far, oncomodulatory mechanisms have been attributed to the presence of HCMV and direct action of its gene products on cancer cells. Here, we investigated whether the prolonged presence of HCMV can result in the irreversible selection of a cancer cell population with increased malignancy. The neuroblastoma cell line UKF-NB-4 was long-term (200 passages) infected with the HCMV strain Hi91 (UKF-NB-4Hi) before virus eradication using ganciclovir (UKF-NB-4HiGCV). Global gene expression profiling of UKF-NB-4, UKF-NB-4Hi and UKF-NB-4HiGCV cells and subsequent bioinformatic signal transduction pathway analysis revealed clear differences between UKF-NB-4 and UKF-NB-4Hi, as well as between UKF-NB-4 and UKF-NB-4HiGCV cells, but only minor differences between UKF-NB-4Hi and UKF-NB-4HiGCV cells. Investigation of the expression of a subset of five genes in different chronically HCMV-infected cell lines before and after virus eradication suggested that long-term HCMV infection reproducibly causes specific changes. Array comparative genomic hybridisation showed virtually the same genomic differences for the comparisons UKF-NB-4Hi/UKF-NB-4 and UKF-NB-4HiGCV/UKF-NB-4. UKF-NB-4Hi cells are characterised by an increased invasive potential compared with UKF-NB-4 cells. This phenotype was completely retained in UKF-NB-4HiGCV cells. Moreover, there was a substantial overlap in the signal transduction pathways that differed significantly between UKF-NB-4Hi/UKF-NB-4HiGCV and UKF-NB-4 cells and those differentially regulated between tumour tissues from neuroblastoma patients with favourable or poor outcome. In conclusion, we present the first experimental evidence that long-term HCMV infection can result in the selection of tumour cell populations with enhanced malignancy.
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