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Opeyemi Bello R, Willis-Powell L, James O, Sharma A, Marsh E, Ellis L, Gaston K, Siddiqui Y. Does Human Papillomavirus Play a Causative Role in Prostate Cancer? A Systematic Review Using Bradford Hill's Criteria. Cancers (Basel) 2023; 15:3897. [PMID: 37568712 PMCID: PMC10416874 DOI: 10.3390/cancers15153897] [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: 05/30/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 08/13/2023] Open
Abstract
Globally, prostate cancer is the fifth most common cause of cancer-related death among men, and metastatic castration-resistant prostate cancer has a high cancer-related mortality rate. However, the aetiology of this disease is not yet fully understood. While human papillomavirus (HPV) has been associated with several types of cancer, including cervical, anal, and oropharyngeal cancers, studies investigating the relationship between HPV and prostate cancer have shown mixed results. This systematic review aimed to evaluate the causative association between HPV and prostate cancer using Bradford Hill's criteria. A comprehensive search of PubMed was conducted, and 60 out of 482 studies were included in the review. The included studies were evaluated based on nine Bradford Hill criteria, and information on the identification and transmission of the virus and potential oncogenic mechanisms was also extracted. The strength of association criterion was not met, and other criteria, such as consistency and coherence, were not fulfilled. However, biological plausibility was supported, and potential oncogenic mechanisms were identified. While some studies have reported the presence of HPV in prostate cancer tissues, the overall quality of evidence remains low, and the association between HPV and prostate cancer is weak. Nevertheless, the prostate is a potential reservoir for the transmission of HPV, and the HPV E6 and E7 oncoproteins and inflammation are likely to be involved in any oncogenic mechanisms. Further studies with a higher level of evidence are needed to establish a definitive link between HPV and prostate cancer.
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Affiliation(s)
- Ridwan Opeyemi Bello
- School of Human Sciences, College of Science and Engineering, University of Derby, Derby DE22 1GB, UK; (R.O.B.); (E.M.)
| | - Lily Willis-Powell
- School of Medicine, University of Nottingham, Nottingham NG7 2QL, UK (K.G.)
| | - Olivia James
- School of Medicine, University of Nottingham, Nottingham NG7 2QL, UK (K.G.)
| | - Avyay Sharma
- School of Medicine, University of Nottingham, Nottingham NG7 2QL, UK (K.G.)
| | - Elizabeth Marsh
- School of Human Sciences, College of Science and Engineering, University of Derby, Derby DE22 1GB, UK; (R.O.B.); (E.M.)
| | - Libby Ellis
- School of Medicine, University of Nottingham, Nottingham NG7 2QL, UK (K.G.)
| | - Kevin Gaston
- School of Medicine, University of Nottingham, Nottingham NG7 2QL, UK (K.G.)
| | - Yusra Siddiqui
- School of Human Sciences, College of Science and Engineering, University of Derby, Derby DE22 1GB, UK; (R.O.B.); (E.M.)
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2
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Gorish BMT. JC Polyoma Virus as a Possible Risk Factor for Prostate Cancer Development - Immunofluorescence and Molecular Based Case Control Study. Cancer Control 2022; 29:10732748221140785. [PMID: 36377557 PMCID: PMC9669689 DOI: 10.1177/10732748221140785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 08/30/2023] Open
Abstract
BACKGROUND In vitro studies have produced conflicting results about the significance of the JC Polyoma Virus (JCV) in the human cancers. OBJECTIVES Our study aims to detect the presence of JCV Large T antigen (LTag) together with viral load quantitation in the prostate tumor samples to assess if JCV harbors risk factor for prostate cancer (PCa). METHOD This was a case control-based study. A total of 110 patients participated in this study, including 55 patients with PCa and another 55 patients with benign prostatic hyperplasia (BPH) as cases and controls, respectively. Tissue, blood and urine samples were collected from each participant. Tissues samples were analyzed for the presence of JCV Ltag using a direct immunofluorescence assay (IF). Only positive IF tested samples were subjected to viral quantitation assay. Data were collected and managed using SPSS version 20. RESULT The JCV LTag in the cases group was 23.63% (13/55) which was higher than that of the controls group 5.45% (3/55) with a P. value of .006 and O.R of 5.76. The mean of viral load was significantly higher among cases tissue specimens 20156 ± 5450 copies/ml compared to controls group 6378 ± 2456copies/ml with P-value of .002. The virus was detected in 11/13 (84.6%) urine samples of cases with a mean viral load of 14068 ± 4590 copies/ml compared to 2/3 (66.6%) of controls viral load 2534 ± 1267 copies/ml. CONCLUSION In conclusion, a higher JCV LTag with more viral load were detected in cases group compared to controls. Our findings support a strong relationship between JCV infection and the probability of developing PCa.
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Affiliation(s)
- Babbiker M. T. Gorish
- Department of Microbiology and
Immunology, Faculty of Medical Laboratory Science, Omdurman Islamic
University, Omdurman, Sudan
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3
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Muñoz JP, Blanco R, Osorio JC, Oliva C, Diaz MJ, Carrillo-Beltrán D, Aguayo R, Castillo A, Tapia JC, Calaf GM, Gaggero A, Aguayo F. Merkel cell polyomavirus detected in head and neck carcinomas from Chile. Infect Agent Cancer 2020; 15:4. [PMID: 32002023 PMCID: PMC6986106 DOI: 10.1186/s13027-020-0276-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/16/2020] [Indexed: 12/11/2022] Open
Abstract
Background The role of human polyomaviruses (HPyVs) in epithelial tumors such as head and neck carcinomas (HNSCCs) including oral and oropharyngeal carcinomas has not been established. In this study, we evaluated for the first time the presence of Merkel cell polyomavirus (MCPyV), BK human polyomavirus (BKPyV), and JC human polyomavirus (JCPyV) in HNSCCs from Chilean subjects. Methods One hundred and twenty HNSCCs were analyzed for the presence of MCPyV, BKPyV and JCPyV using real-time polymerase chain reaction procedures. In addition, 54 oral brushes from age- and sex-paired subjects were analyzed. Results Of the total of 120 HNSCCs, 15 were positive for MCPyV (12.5%). Only one case was positive for BKPyV (0.8%) and none for JCPyV (0%). In subjects without cancer, only one case (1.8%) resulted positive for MCPyV and none for JCPyV and BKPyV. MCPyV was associated with HNSCCs (p = 0.0239; OR = 7.571; 95% CI: 1.192–81.46). No association was found between age (p = 0.1996), gender (p = 0.7111) or differentiation status (p > 0.9999) and MCPyV presence in HNSCCs. Conclusions MCPyVs were detected in HNSCCs from Chilean patients and were not detected in oral brushes from patients without cancer. More studies are warranted for defining an etiological role and clinical/molecular consequences of these viruses in HNSCCs.
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Affiliation(s)
- Juan P Muñoz
- 1Instituto de Alta Investigación (IAI), Universidad de Tarapaca, Arica, Chile
| | - Rancés Blanco
- 2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Julio C Osorio
- 2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Carolina Oliva
- 2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - María José Diaz
- 2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Diego Carrillo-Beltrán
- 2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Rebeca Aguayo
- Centro de Salud Familiar "El Roble", Municipalidad de La Pintana, Santiago, Chile
| | - Andrés Castillo
- 4Department of Biology, Faculty of Natural and Exact Sciences at Universidad del Valle, Cali, Colombia
| | - Julio C Tapia
- 5Departamento de Oncología Básico Clínica, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Gloria M Calaf
- 1Instituto de Alta Investigación (IAI), Universidad de Tarapaca, Arica, Chile.,6Center for Radiological Research, Columbia University Medical Center, New York, NY USA
| | - Aldo Gaggero
- 2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Francisco Aguayo
- 1Instituto de Alta Investigación (IAI), Universidad de Tarapaca, Arica, Chile.,2Programa de Virología, Instituto de Ciencias Biomédicas (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile.,7Advanced Center for Chronic diseases (ACCDiS), Universidad de Chile, Santiago, Chile
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Gorish BMT, Ournasseir MEH, Shammat IM. Molecular Characterization of BK Polyomavirus’ Large T Antigen Gene Sequences Detected in Prostate Cancer Tissues of Sudanese Patients. Open Virol J 2019. [DOI: 10.2174/1874357901913010029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
BK virus, which is associated with Prostate Cancer (PCa), have a global seroprevalence in humans. Based on the sequences of VP1 and the Large Antigen (LTAg) genes, there are four subtypes of BKV. Each subtype has its own subgroups.
Objective:
The aim of this study was to identify the BKV subtype that circulates among Sudanese patients with PCa.
Materials and Methods:
A total of 8 samples from our previous work on BKV were studied in this investigation. The LTAg gene was partially amplified (176nt) by a homemade PCR. All the amplicons were purified and subjected to sequencing. Bioedit version 7.0 and Mega X version 6.0 were used to analyze the sequence and compare the results with the BKV sequences and build a phylogenetic tree.
Results:
All the BKV LTAg gene sequences derived from Sudanese patients were classified with Subtype-1 BKV strains from Iran and Japan. Translated protein alignment showed that some isolates had identical amino acids with Iranian and Japanese strains, whereas others had a silent mutation. Interestingly, a point mutation was identified in the sequences of isolate 5 and 8 where adenine nucleotide (A) was replaced with Cytosine (C) at position 276, resulting in amino acid substitution.
Conclusion:
It was concluded that all the BKV isolates which circulated among Sudanese prostate tumor patients belonged to subtype 1. These findings only highlighted the need for the molecular detection and subtyping of BKV strains in Sudanese patients in order to better demonstrate the relationship between BKV infection and PCa.
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Gorish BMT, Ournasseir MEH, Shammat IM. A correlation study of BK Polyoma Virus infection and prostate Cancer among Sudanese patients - immunofluorescence and molecular based case-control study. Infect Agent Cancer 2019; 14:25. [PMID: 31548852 PMCID: PMC6751814 DOI: 10.1186/s13027-019-0244-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 09/10/2019] [Indexed: 11/10/2022] Open
Abstract
Background Polyomavirus hominis1, also called BK virus (BKV) is a well-known etiological agent of renal transplant nephropathy and cystitis. Recently, it got great attention from the researcher as a principal predisposing factor for different kinds of cancers including prostate cancer (PCa). Thus, this study aims to determine the correlation between BKV infection and PCa through a descriptive case-control based study. Methods A total of 55 paraffin-embedded tissue blocks of patients with PCa and another 55 tissue blocks from BPH patients were obtained. In parallel, respective urine samples were collected from all the cases and controls. The existence of BKV large T antigen (LTAg) was analyzed by Direct Immunofluorescence assay. Only BKV LTAg positive specimens were further analyzed for the presence of viral DNA by using a conventional PCR then subjected to viral load quantitation by using Q-PCR. Result BKV LTAg was identified in 30% (17/55) of cases tissue specimens and only in 7% (4/55) of the controls tissue specimens with P-value 0.002 and Odd ratio 5.7. The conventional PCR detects the BKV DNA in 16 out of 17 cases specimens while only two out of four controls specimens were identified with a viral DNA. The mean of the BKV DNA load was higher significantly among cases 6733 ± 6745 copies/ml when compared to controls 509.0 ± 792.9 copies/m with a p-value of 0.002. Conclusion More BKV prevalence with high viral load was observed in PCa patients tissue compared to BPH specimens. PCa Gleason scores 9 and 7 were the most cancer grades identified with the presence of BKV DNA. Our findings are thus consistent with a significant link between the BKV infection and the PCa risk. Prostate or seminal fluids should be selected as principal specimens for future studies and can, therefore, be designated as screening samples to find early virus evidence in the prostate tissue. Detection of early virus evidence may help to reduce the risk of PCa cancer due to BKV.
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Affiliation(s)
- Babbiker Mohammed Taher Gorish
- 1Department of Microbiology and Immunology, Faculty of Medical Laboratory Science, Omdurman Islamic University, Omdurman, Sudan
| | | | - Iman Mohammed Shammat
- 1Department of Microbiology and Immunology, Faculty of Medical Laboratory Science, Omdurman Islamic University, Omdurman, Sudan.,2Department of Biology, Faculty of Science, Taibah University, Medina, Saudi Arabia
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Levican J, Acevedo M, León O, Gaggero A, Aguayo F. Role of BK human polyomavirus in cancer. Infect Agent Cancer 2018; 13:12. [PMID: 29632550 PMCID: PMC5887205 DOI: 10.1186/s13027-018-0182-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/14/2018] [Indexed: 12/17/2022] Open
Abstract
Human polyomaviruses (HPyV), which are small DNA viruses classified into the polyomaviridae family, are widely distributed in human populations. Thirteen distinct HPyVs have been described to date. Some of these viruses have been found in human tumors, suggesting an etiological relationship with cancer. In particular, convincing evidence of an oncogenic role has emerged for a specific HPyV, the Merkel cell polyomavirus (MCPyV). This HPyV has been linked to rare skin cancer, Merkel cell carcinoma (MCC). This finding may be just the tip of the iceberg, as HPyV infections are ubiquitous in humans. Many authors have conjectured that additional associations between HPyV infections and neoplastic diseases will likely be discovered. In 2012, the International Agency for Research on Cancer (IARC) evaluated the carcinogenicity of the BK virus (BKPyV), reporting that BKPyV is “possibly carcinogenic to humans.” This review explores the BKPyV infection from a historical point of view, including biological aspects related to viral entry, tropism, epidemiology and mechanisms potentially involved in BKPyV-mediated human carcinogenesis. In order to clarify the role of this virus in human cancer, more epidemiological and basic research is strongly warranted.
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Affiliation(s)
- Jorge Levican
- 1Programa de Virología, Instituto de Ciencias Biomedicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mónica Acevedo
- 1Programa de Virología, Instituto de Ciencias Biomedicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Oscar León
- 1Programa de Virología, Instituto de Ciencias Biomedicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Aldo Gaggero
- 1Programa de Virología, Instituto de Ciencias Biomedicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Francisco Aguayo
- 2Departamento de Oncología Básico clínica, Facultad de Medicina, Universidad de Chile, Santiago, Chile.,3Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago, Chile
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