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Wijaya WA, Liu Y, Qing Y, Li Z. Prevalence of Merkel Cell Polyomavirus in Normal and Lesional Skin: A Systematic Review and Meta-Analysis. Front Oncol 2022; 12:868781. [PMID: 35392226 PMCID: PMC8980839 DOI: 10.3389/fonc.2022.868781] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 02/28/2022] [Indexed: 02/05/2023] Open
Abstract
The prevalence of Merkel cell polyomavirus(MCPyV) in Merkel cell carcinoma(MCC) and non-MCC skin lesions and its possible role in the etiology of other skin diseases remain controversial. To systematically assess the association between MCPyV infection and MCC, non-MCC skin lesions, and normal skin. For this systematic review and meta-analysis, a comprehensive search for eligible studies was conducted using Medline Ovid, Pubmed, Web of Science, and the Cochrane CENTRAL databases until August 2021; references were searched to identify additional studies. Observational studies that investigated the association between MCPyV infection and MCC, non-MCC skin lesions, and normal skin using polymerase chain reaction(PCR) as a detection method and provided sufficient data to calculate the prevalence of MCPyV positivity. A total of 50 articles were included in the study after exclusion criteria were applied. Two reviewers independently reviewed and assessed the eligibility of the studies, and all disagreements were resolved by consensus. To determine the association between MCPyV and MCC, overall odds ratio (OR) were calculated with 95% CI using a random-effects model. Single-arm meta-analyses were performed to examine the prevalence rate of MCPyV+ in MCC, non-MCC skin lesions, and normal skin. The primary analysis was the prevalence rate of MCPyV+ in MCC. Secondary outcomes included the prevalence rate of MCPyV+ in non-MCC skin lesions and normal skin. A total of 50 studies involving 5428 patients were reviewed based on our inclusion and exclusion criteria. Compared with the control group, MCPyV infection was significantly associated with MCC (OR = 3.51, 95% CI = 2.96 - 4.05). The global prevalence of MCPyV+ in MCC, melanoma, squamous cell carcinoma, basal cell carcinoma, Bowen's disease, actinic keratosis, keratoacanthoma, seborrheic keratosis, and normal skin was 80%, 4%, 15%, 15%, 21%, 6%, 20%, 10%, and 11%, respectively. The current results suggest that MCPyV infection is significantly associated with an increased risk of MCC. However, the low prevalence rate of MCPyV+ in non-MCC skin lesions does not exclude a pathogenic association of this virus with the development of non-MCC skin lesions.
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Affiliation(s)
- Wilson A Wijaya
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Liu
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yong Qing
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, China
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2
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Zhao J, You X, Zeng X. Research progress of BK virus and systemic lupus erythematosus. Lupus 2022; 31:522-531. [PMID: 35264023 DOI: 10.1177/09612033221084259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Systemic lupus erythematosus (SLE) is an autoimmune disease in which patients are often infected by viruses due to deficient immunity or immunosuppressant use. BK virus (BKV)mainly affects the kidney and can also cause multiple organ involvement throughout the body, which is similar to SLE. BKV is mostly a latent infection in vivo. The incidence of virus reactivation is higher in SLE patients. Reactivation of BKV can induce the production of autoantibodies, thereby promoting the occurrence and development of SLE.Purpose: Aim of this article is to review the prevalence and pathegenesis of BKV infection in SLE patients.Method: The literature search was conducted using four different databases including PubMed, Cochrane Library, Scopus and Web of Science.Results: BK virus is higher infection and reactivation in SLE patients. The "hapten carrier" mechanism may lead to the production of autoantibodies. Some immunosuppressive drugs, like leflumide and hydroxychloroquine, may show a protective effect.Conclusions: BKV infection plays a role in the occurrence and development of SLE, and its significance deserves further exploration.
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Affiliation(s)
- Jiawei Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 34732Peking Union Medical College, Beijing, China
| | - Xin You
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 34732Peking Union Medical College, Beijing, China
| | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 34732Peking Union Medical College, Beijing, China
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3
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Costa PVA, Ishiy PS, Urbano PRP, Romano CM, Tyring SK, Oliveira WRP, Festa-Neto C. Identification of Polyomaviruses in Skin Cancers. Intervirology 2021; 64:119-125. [PMID: 33592613 DOI: 10.1159/000513544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/22/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Polyomaviruses (PyVs) were initially described in animals. They have also been detected in humans with some evidence that could play a role in skin carcinogenesis. OBJECTIVES This study aimed to verify the presence of PyVs in different skin tumour samples and to make clinical correlations with patients' epidemiological data from Clinics Hospital of Medical School of University of São Paulo, Brazil. METHODS This is a cross-sectional study. A random selection was performed of 120 patients with histopathological exams of different cutaneous neoplasms equally divided into 6 groups and 20 patients with normal skin. The available skin specimens were analysed with 2 different techniques of PCR (conventional and real time) for detection of PyV DNA. Concomitantly, retrospective analysis of the respective medical records for the collection of epidemiological data was done. Analyses suitable for categorical data were used to compare the proportion of patients in each group. RESULTS PyV DNA was found in 25.69% of the samples: 15% in basal cell carcinoma group, 15% in squamous cell carcinoma, 28.57% in melanoma, 15% in dermatofibrosarcoma protuberans, 13.33% in Kaposi sarcoma, 65% in Merkel cell carcinoma (MCC), and none in normal skin. Merkel cell PyV detection was statistically significant in MCC patients (p value <0.01), but no correlations were found between PyVs and others skin tumours. CONCLUSION This study demonstrated the presence of PyVs in different skin tumours; however, no association of any PyVs found in any skin tumour with epidemiological data could be shown. Further studies are still needed to elucidate the mechanisms of PyVs in skin carcinogenesis.
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Affiliation(s)
- Pedro V A Costa
- Department of Dermatology, Clinics Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil
| | - Patricia S Ishiy
- Department of Dermatology, Clinics Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil
| | - Paulo R P Urbano
- Virology Research Laboratory (LIMHC 52), Clinics Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil
| | - Camila M Romano
- Virology Research Laboratory (LIMHC 52), Clinics Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil
| | - Stephen K Tyring
- Department of Dermatology, University of Texas Health Science Center, Houston, Texas, USA
| | - Walmar R P Oliveira
- Department of Dermatology, Clinics Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil,
| | - Cyro Festa-Neto
- Department of Dermatology, Clinics Hospital of the Medical School of the University of São Paulo, São Paulo, Brazil
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4
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Laskar R, Jilani MG, Ali S. Implications of genome simple sequence repeats signature in 98 Polyomaviridae species. 3 Biotech 2021; 11:35. [PMID: 33432281 PMCID: PMC7787124 DOI: 10.1007/s13205-020-02583-w] [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: 09/25/2020] [Accepted: 11/02/2020] [Indexed: 01/21/2023] Open
Abstract
The analysis of simple sequence repeats (SSRs) in 98 genomes across four genera of the family Polyomaviridae was performed. The genome size ranged from 3962 (BM87) to 7369 bp (BM85) but maximum genomes were in the range of 5-5.5 kb. The GC% had an average of 42% and ranged between 34.69 (BM95) and 52.35 (BM81). A total of 3036 SSRs and 223 cSSRs were extracted using IMEx with incident frequency from 18 to 56 and 0 to 7, respectively. The most prevalent mono-nucleotide repeat motif was "T" (48.95%) followed by "A" (33.48%). "AT/TA" was the most prevalent dinucleotide motif closely followed by "CT/TC". The distribution was expectedly more in the coding region with 77.6% SSRs of which nearly half were in Large T Antigen (LTA) gene. Notably, most viruses with humans, apes and related species as host exhibited exclusivity of mono-nucleotide repeats in AT region, a proposed predictive marker for determination of humans as host in the virus in course of its evolution. Each genome has a unique SSR signature which is pivotal for viral evolution particularly in terms of host divergence. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-020-02583-w.
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Affiliation(s)
- Rezwanuzzaman Laskar
- Clinical and Applied Genomics (CAG) Laboratory, Department of Biological Sciences, Aliah University, IIA/27, Newtown, Kolkata, 700160 India
| | - Md Gulam Jilani
- Clinical and Applied Genomics (CAG) Laboratory, Department of Biological Sciences, Aliah University, IIA/27, Newtown, Kolkata, 700160 India
| | - Safdar Ali
- Clinical and Applied Genomics (CAG) Laboratory, Department of Biological Sciences, Aliah University, IIA/27, Newtown, Kolkata, 700160 India
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5
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Beyond Cytomegalovirus and Epstein-Barr Virus: a Review of Viruses Composing the Blood Virome of Solid Organ Transplant and Hematopoietic Stem Cell Transplant Recipients. Clin Microbiol Rev 2020; 33:33/4/e00027-20. [PMID: 32847820 DOI: 10.1128/cmr.00027-20] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Viral primary infections and reactivations are common complications in patients after solid organ transplantation (SOT) and hematopoietic stem cell transplantation (HSCT) and are associated with high morbidity and mortality. Among these patients, viral infections are frequently associated with viremia. Beyond the usual well-known viruses that are part of the routine clinical management of transplant recipients, numerous other viral signatures or genomes can be identified in the blood of these patients. The identification of novel viral species and variants by metagenomic next-generation sequencing has opened up a new field of investigation and new paradigms. Thus, there is a need to thoroughly describe the state of knowledge in this field with a review of all viral infections that should be scrutinized in high-risk populations. Here, we review the eukaryotic DNA and RNA viruses identified in blood, plasma, or serum samples of pediatric and adult SOT/HSCT recipients and the prevalence of their detection, with a particular focus on recently identified viruses and those for which their potential association with disease remains to be investigated, such as members of the Polyomaviridae, Anelloviridae, Flaviviridae, and Astroviridae families. Current knowledge of the clinical significance of these viral infections with associated viremia among transplant recipients is also discussed. To ensure a comprehensive description in these two populations, individuals described as healthy (mostly blood donors) are considered for comparative purposes. The list of viruses that should be on the clinicians' radar is certainly incomplete and will expand, but the challenge is to identify those of possible clinical significance.
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Canavan TN, Baddley JW, Pavlidakey P, Tallaj JA, Elewski BE. Human polyomavirus-7-associated eruption successfully treated with acitretin. Am J Transplant 2018; 18:1278-1284. [PMID: 29275541 DOI: 10.1111/ajt.14634] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 12/13/2017] [Accepted: 12/18/2017] [Indexed: 01/25/2023]
Abstract
Advances in molecular technologies have led to the discovery of several novel human polyomaviruses (HPyVs), including human polyomavirus-7 (HPyV-7). Although low levels of HPyV-7 are shed from apparently normal skin, recent reports have described clinically significant cutaneous infection in immunocompromised patients that manifests as generalized pruritic plaques. The pruritus can be severe, and treatment options have not been described. Herein we report HPyV-7 cutaneous infection in a heart transplant patient who experienced temporary improvement with intravenous cidofovir, and complete remission with acitretin. We report a case of HPyV-7 cutaneous infection demonstrating a good response to treatment.
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Affiliation(s)
- T N Canavan
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - J W Baddley
- Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, AL, USA
| | - P Pavlidakey
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - J A Tallaj
- Department of Medicine, Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL, USA
| | - B E Elewski
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
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7
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Gossai A, Waterboer T, Hoen AG, Farzan SF, Nelson HH, Michel A, Willhauck‐Fleckenstein M, Christensen BC, Perry AE, Pawlita M, Karagas MR. Human polyomaviruses and incidence of cutaneous squamous cell carcinoma in the New Hampshire skin cancer study. Cancer Med 2016; 5:1239-50. [PMID: 26899857 PMCID: PMC4924382 DOI: 10.1002/cam4.674] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/02/2016] [Accepted: 01/25/2016] [Indexed: 02/06/2023] Open
Abstract
Squamous cell carcinoma (SCC) of the skin is a malignancy arising from epithelial keratinocytes. Experimental and epidemiologic evidence raise the possibility that human polyomaviruses (PyV) may be associated with the occurrence of SCC. To investigate whether the risk for SCC was associated with PyV infection, seropositivity to 10 PyV types was assessed following diagnosis in a population-based case-control study conducted in the United States. A total of 253 SCC cases and 460 age group and gender-matched controls were included. Antibody response against each PyV was measured using a multiplex serology-based glutathione S-transferase capture assay of recombinantly expressed VP1 capsid proteins. Odds ratios (OR) for SCC associated with seropositivity to each PyV type were estimated using logistic regression, with adjustment for potentially confounding factors. SCC cases were seropositive for a greater number of PyVs than controls (P = 0.049). Those who were JC seropositive had increased odds of SCC when compared to those who were JC seronegative (OR = 1.37, 95% CI: 0.98-1.90), with an increasing trend in SCC risk with increasing quartiles of seroreactivity (P for trend = 0.04). There were no clear associations between SCC risk and serostatus for other PyV types. This study provides limited evidence that infection with certain PyVs may be related to the occurrence of SCC in the general population of the United States.
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Affiliation(s)
- Anala Gossai
- Geisel School of Medicine at DartmouthHanoverNew Hampshire
| | - Tim Waterboer
- German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Anne G. Hoen
- Geisel School of Medicine at DartmouthHanoverNew Hampshire
| | - Shohreh F. Farzan
- Geisel School of Medicine at DartmouthHanoverNew Hampshire
- New York UniversityNew York, New York
| | | | | | | | | | - Ann E. Perry
- Geisel School of Medicine at DartmouthHanoverNew Hampshire
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Saribas AS, Coric P, Hamazaspyan A, Davis W, Axman R, White MK, Abou-Gharbia M, Childers W, Condra JH, Bouaziz S, Safak M. Emerging From the Unknown: Structural and Functional Features of Agnoprotein of Polyomaviruses. J Cell Physiol 2016; 231:2115-27. [PMID: 26831433 DOI: 10.1002/jcp.25329] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/01/2016] [Indexed: 12/15/2022]
Abstract
Agnoprotein is an important regulatory protein of polyomaviruses, including JCV, BKV, and SV40. In the absence of its expression, these viruses are unable to sustain their productive life cycle. It is a highly basic phosphoprotein that localizes mostly to the perinuclear area of infected cells, although a small amount of the protein is also found in nucleus. Much has been learned about the structure and function of this important regulatory protein in recent years. It forms highly stable dimers/oligomers in vitro and in vivo through its Leu/Ile/Phe-rich domain. Structural NMR studies revealed that this domain adopts an alpha-helix conformation and plays a critical role in the stability of the protein. It associates with cellular proteins, including YB-1, p53, Ku70, FEZ1, HP1α, PP2A, AP-3, PCNA, and α-SNAP; and viral proteins, including small t antigen, large T antigen, HIV-1 Tat, and JCV VP1; and significantly contributes the viral transcription and replication. This review summarizes the recent advances in the structural and functional properties of this important regulatory protein. J. Cell. Physiol. 231: 2115-2127, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- A Sami Saribas
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Pascale Coric
- Université Paris Descartes, Sorbonne Paris Cité, Laboratoire de Cristallographie et RMN Biologiques, 4 av. de l'Observatoire, Paris, France
| | - Anahit Hamazaspyan
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - William Davis
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Rachel Axman
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Martyn K White
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Magid Abou-Gharbia
- Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, Philadelphia, Pennsylvania
| | - Wayne Childers
- Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, Philadelphia, Pennsylvania
| | - Jon H Condra
- Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, Philadelphia, Pennsylvania
| | - Serge Bouaziz
- Université Paris Descartes, Sorbonne Paris Cité, Laboratoire de Cristallographie et RMN Biologiques, 4 av. de l'Observatoire, Paris, France
| | - Mahmut Safak
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
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9
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Gossai A, Waterboer T, Nelson HH, Doherty JA, Michel A, Willhauck-Fleckenstein M, Farzan SF, Christensen BC, Hoen AG, Perry AE, Pawlita M, Karagas MR. Prospective Study of Human Polyomaviruses and Risk of Cutaneous Squamous Cell Carcinoma in the United States. Cancer Epidemiol Biomarkers Prev 2016; 25:736-44. [PMID: 26908434 DOI: 10.1158/1055-9965.epi-15-1111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 02/08/2016] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Merkel cell polyomavirus (PyV) is causally related to Merkel cell carcinoma, a rare skin malignancy. Little is known about the serostability of other PyVs over time or associations with cutaneous squamous cell carcinoma (SCC). METHODS As part of a U.S. nested case-control study, antibody response against the PyV VP1 capsid proteins of BK and John Cunningham virus (JC) was measured using multiplex serology on 113 SCC cases and 229 gender, age, and study center-matched controls who had a prior keratinocyte cancer. Repeated serum samples from controls and both pre and postdiagnosis samples from a subset of SCC cases were also tested. Odds ratios (OR) for SCC associated with seropositivity to each PyV type were estimated using conditional logistic regression. RESULTS Among controls, BK and JC seroreactivity was stable over time, with intraclass correlation coefficients of 0.86 for BK and 0.94 for JC. Among cases, there was little evidence of seroconversion following SCC diagnosis. JC seropositivity prior to diagnosis was associated with an elevated risk of SCC (OR = 2.54; 95% CI, 1.23-5.25), and SCC risk increased with increasing quartiles of JC (Ptrend = 0.004) and BK (Ptrend = 0.02) seroreactivity. CONCLUSIONS PyV antibody levels were stable over time and following an SCC diagnosis. A history of PyV infection may be involved in the occurrence of SCC in a population at high risk for this malignancy. IMPACT A single measure of PyV seroreactivity appears a reliable indicator of long-term antibody status, and PyV exposure may be a risk factor for subsequent SCC. Cancer Epidemiol Biomarkers Prev; 25(5); 736-44. ©2016 AACR.
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Affiliation(s)
- Anala Gossai
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Tim Waterboer
- German Cancer Research Center (Deutsches Krebsforschungszentrum), Heidelberg, Germany
| | - Heather H Nelson
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Jennifer A Doherty
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Angelika Michel
- German Cancer Research Center (Deutsches Krebsforschungszentrum), Heidelberg, Germany
| | | | - Shohreh F Farzan
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Langone Medical Center, New York University, New York, New York
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Anne G Hoen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Ann E Perry
- Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Michael Pawlita
- German Cancer Research Center (Deutsches Krebsforschungszentrum), Heidelberg, Germany
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.
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10
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The Skin Microbiome: Insights into Potential Impact on Diagnostic Practice. Mol Microbiol 2016. [DOI: 10.1128/9781555819071.ch10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Gossai A, Waterboer T, Nelson HH, Michel A, Willhauck-Fleckenstein M, Farzan SF, Hoen AG, Christensen BC, Kelsey KT, Marsit CJ, Pawlita M, Karagas MR. Seroepidemiology of Human Polyomaviruses in a US Population. Am J Epidemiol 2016; 183:61-9. [PMID: 26667254 PMCID: PMC5006224 DOI: 10.1093/aje/kwv155] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 06/09/2015] [Indexed: 12/13/2022] Open
Abstract
Polyomaviruses (PyV) are potentially tumorigenic in humans. However, limited data exist on the population seroprevalence of PyVs and individual characteristics that relate to seropositivity. Using multiplex serology, we determined the seroprevalence of 10 human PyVs (BK, JC, KI, WU, MCV, HPyV6, HPyV7, TSV, HPyV9, and HPyV10) among controls from a population-based skin cancer case-control study (n = 460) conducted in New Hampshire between 1993 and 1995. On a subset of participants (n = 194), methylation at CpG dinucleotides across the genome was measured in peripheral blood using the Illumina Infinium HumanMethylation27 BeadChip array (Illumina Inc., San Diego, California), from which lymphocyte subtype proportions were inferred. All participants were seropositive for at least 1 PyV, with seroprevalences ranging from 17.6% (HPyV9) to 99.1% (HPyV10). Seropositivity to JC, MCV, and HPyV7 increased with age. JC and TSV seropositivity were more common among men than among women. Smokers were more likely to be HPyV9-seropositive but MCV-seronegative, and HPyV7 seropositivity was associated with prolonged glucocorticoid use. Based on DNA methylation profiles, differences were observed in CD8-positive T- and B-cell proportions by BK, JC, and HPyV9 seropositivity. Our findings suggest that PyV seropositivity is common in the United States and varies by sociodemographic and biological characteristics, including those related to immune function.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Margaret R. Karagas
- Correspondence to Dr. Margaret R. Karagas, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756 (e-mail: )
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12
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Moens U, Van Ghelue M, Ludvigsen M, Korup-Schulz S, Ehlers B. Early and late promoters of BK polyomavirus, Merkel cell polyomavirus, Trichodysplasia spinulosa-associated polyomavirus and human polyomavirus 12 are among the strongest of all known human polyomaviruses in 10 different cell lines. J Gen Virol 2015; 96:2293-2303. [PMID: 25968129 DOI: 10.1099/vir.0.000181] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Recently, 11 new human polyomaviruses (HPyVs) have been isolated and named KI, WU, Merkel cell polyomavirus (MCPyV), HPyV6, -7, -9, -10 and -12, Trichodysplasia spinulosa-associated polyomavirus (TSPyV), STLPyV and NJPyV-2013. Little is known about cell tropism of the novel HPyVs, and cell cultures allowing virus propagation are lacking. Because viral tropism partially depends on the interaction of cellular transcription factors with the viral promoter, we monitored the promoter activity of all known HPyVs. Therefore, we compared the relative early and late promoter activity of the BK polyomavirus (BKPyV) (WW strain) with the corresponding activities of the other HPyVs in 10 different cell lines derived from brain, colon, kidney, liver, lung, the oral cavity and skin. Our results show that the BKPyV, MCPyV, TSPyV and HPyV12 early promoters displayed the strongest activity in most cell lines tested, while the remaining HPyV had relative low early promoter activity. HPyV12 showed the highest late promoter activity of all HPyVs in most cell lines, but also the BKPyV, MCPyV and TSPyV late promoters belonged to the stronger ones among HPyVs. The HPyVs with weak early promoter activity had in general also weak late promoter activity, except for HPyV10 whose late promoter was relatively strong in six of the 10 cell lines. A 20 bp deletion in the promoter of an HPyV12 variant significantly affected both early and late promoter activity in most cell lines. In conclusion, our findings suggest which cell lines may be suitable for virus propagation and may give an indication of the cell tropism of the HPyVs.
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Affiliation(s)
- Ugo Moens
- Faculty of Health Sciences, Institute of Medical Biology, University of Tromsø, Norway
| | - Marijke Van Ghelue
- Department of Medical Genetics, University Hospital of North Norway, Norway.,Faculty of Health Sciences, Institute of Clinical Biology, University of Tromsø, Norway
| | - Maria Ludvigsen
- Faculty of Health Sciences, Institute of Medical Biology, University of Tromsø, Norway
| | - Sarah Korup-Schulz
- Division 12 Measles, Mumps, Rubella and Viruses Affecting Immunocompromised Patients, Robert Koch Institute, Berlin, Germany
| | - Bernhard Ehlers
- Division 12 Measles, Mumps, Rubella and Viruses Affecting Immunocompromised Patients, Robert Koch Institute, Berlin, Germany
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13
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Madeleine MM, Carter JJ, Johnson LG, Wipf GC, Davis C, Berg D, Nelson K, Daling JR, Schwartz SM, Galloway DA. Risk of squamous cell skin cancer after organ transplant associated with antibodies to cutaneous papillomaviruses, polyomaviruses, and TMC6/8 (EVER1/2) variants. Cancer Med 2014; 3:1440-7. [PMID: 24913986 PMCID: PMC4302694 DOI: 10.1002/cam4.280] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 04/30/2014] [Accepted: 05/01/2014] [Indexed: 12/21/2022] Open
Abstract
Squamous cell skin cancer (SCSC) disproportionately affects organ transplant recipients, and may be related to increased viral replication in the setting of immune suppression. We conducted a nested case–control study among transplant recipients to determine whether SCSC is associated with antibodies to cutaneous human papillomaviruses (HPV), to genes associated with a rare genetic susceptibility to HPV (TMC6/TMC8), or to human polyomaviruses (HPyV). Cases (n = 149) had histologically confirmed SCSC, and controls (n = 290) were individually matched to cases on time since transplant, type of transplant, gender, and race. All subjects had serum drawn immediately prior to transplant surgery. Antibodies to 25 cutaneous HPVs and six HPyVs were assayed by detection of binding to virus-like particles, and 11 TMC6/8 variants were genotyped. After correction for multiple comparisons, only antibodies to HPV37 were associated with SCSC (OR 2.0, 95% CI 1.2–3.4). Common genetic variants of TMC6/8 were not associated with SCSC, but three variants in TMC8 (rs12452890, rs412611, and rs7208422) were associated with greater seropositivity for species 2 betapapillomaviruses among controls. This study suggests that some betaHPVs, but not polyomaviruses, may play a role in the excess risk of SCSC among transplant recipients.
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Affiliation(s)
- Margaret M Madeleine
- Program in Epidemiology, Fred Hutchinson Cancer Research Center, Seattle, Washington; Department of Epidemiology, University of Washington, Seattle, Washington
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14
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Wieland U, Silling S, Hellmich M, Potthoff A, Pfister H, Kreuter A. Human polyomaviruses 6, 7, 9, 10 and Trichodysplasia spinulosa-associated polyomavirus in HIV-infected men. J Gen Virol 2014; 95:928-932. [DOI: 10.1099/vir.0.061259-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Recently, several novel human polyomaviruses (HPyVs) have been detected. HPyV6, 7, 9 and 10 are not associated with any disease so far. Trichodysplasia spinulosa (TS)-associated polyomavirus (TSPyV) can cause the rare skin disease TS. We have evaluated cutaneous DNA prevalence and viral loads of five HPyVs in HIV-infected men compared to healthy male controls. 449 forehead swabs were analysed by HPyV-specific real-time PCR. HPyV6, HPyV7, TSPyV and HPyV10 were found significantly more frequently on the skin of 210 HIV-infected compared to 239 HIV-negative men (HPyV6, 39.0 vs 27.6 %; HPyV7, 21.0 vs 13.4 %; TSPyV, 3.8 vs 0.8 %; HPyV10, 9.3 vs 3.4 %; P<0.05, respectively). HPyV9 was not detected. Multiple infections were more frequent in HIV-positive men, but HPyV-DNA loads did not differ significantly in both groups. In contrast to HPyV6, 7 and 10, TSPyV and HPyV9 do not seem to be a regular part of the human skin microbiome.
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Affiliation(s)
- Ulrike Wieland
- Institute of Virology, University of Cologne, 50935 Koeln, Germany
| | - Steffi Silling
- Institute of Virology, University of Cologne, 50935 Koeln, Germany
| | - Martin Hellmich
- Institute of Medical Statistics, Informatics and Epidemiology, University of Cologne, 50937 Koeln, Germany
| | - Anja Potthoff
- Department of Dermatology, Venereology and Allergology, Ruhr University Bochum, 44791 Bochum, Germany
| | - Herbert Pfister
- Institute of Virology, University of Cologne, 50935 Koeln, Germany
| | - Alexander Kreuter
- Department of Dermatology, Venereology and Allergology, Ruhr University Bochum, 44791 Bochum, Germany
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15
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Hashida Y, Imajoh M, Kamioka M, Taniguchi A, Kuroda N, Hayashi K, Nakajima H, Sano S, Daibata M. Phylogenetic analysis of Merkel cell polyomavirus based on full-length LT and VP1 gene sequences derived from neoplastic tumours in Japanese patients. J Gen Virol 2014; 95:135-141. [DOI: 10.1099/vir.0.058149-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
Most Merkel cell polyomavirus (MCPyV) gene sequences have been reported from Western countries and few data are available for the virus sequences from other geographical areas, especially Asia. Thus, we performed phylogenetic analyses based on the nucleotide sequences of the full-length large T-antigen (LT) and viral protein 1 (VP1) genes derived from a variety of cancers in Japanese patients and compared them with sequences from Caucasians. The LT and VP1 gene-based phylogenetic trees identified two main genetic clades. One clade comprised strains isolated from Caucasians, whereas all of the Japanese tumour-derived MCPyV strains belonged to another clade. These findings confirm that most of the MCPyV strains present in Japan form a clade, distinct from Caucasian strains.
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Affiliation(s)
- Yumiko Hashida
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
| | - Masayuki Imajoh
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
| | - Mikio Kamioka
- Department of Laboratory Medicine, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
| | - Ayuko Taniguchi
- Division of Hematology and Respiratory Medicine, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
| | - Naoto Kuroda
- Department of Pathology, Kochi Red Cross Hospital, Kochi 780-8561, Japan
| | - Kazuhiko Hayashi
- Division of Molecular Pathology, Department of Microbiology and Pathology, Tottori University Faculty of Medicine, Yonago 683-8503, Japan
| | - Hideki Nakajima
- Department of Dermatology, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
| | - Shigetoshi Sano
- Department of Dermatology, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
| | - Masanori Daibata
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Nankoku, Kochi 783-8505, Japan
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16
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Hannigan GD, Grice EA. Microbial ecology of the skin in the era of metagenomics and molecular microbiology. Cold Spring Harb Perspect Med 2013; 3:a015362. [PMID: 24296350 DOI: 10.1101/cshperspect.a015362] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The skin is the primary physical barrier between the body and the external environment and is also a substrate for the colonization of numerous microbes. Previously, dermatological microbiology research was dominated by culture-based techniques, but significant advances in genomic technologies have enabled the development of less-biased, culture-independent approaches to characterize skin microbial communities. These molecular microbiology approaches illustrate the great diversity of microbiota colonizing the skin and highlight unique features such as site specificity, temporal dynamics, and interpersonal variation. Disruptions in skin commensal microbiota are associated with the progression of many dermatological diseases. A greater understanding of how skin microbes interact with each other and with their host, and how we can therapeutically manipulate those interactions, will provide powerful tools for treating and preventing dermatological disease.
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Affiliation(s)
- Geoffrey D Hannigan
- Department of Dermatology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania 19104
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17
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Popgeorgiev N, Temmam S, Raoult D, Desnues C. Describing the silent human virome with an emphasis on giant viruses. Intervirology 2013; 56:395-412. [PMID: 24157886 DOI: 10.1159/000354561] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Viruses are the most abundant obligate intracellular entities in our body. Until recently, they were only considered to be pathogens that caused a broad array of pathologies, ranging from mild disease to deaths in the most severe cases. However, recent advances in unbiased mass sequencing techniques as well as increasing epidemiological evidence have indicated that the human body is home to diverse viral species under non-pathological conditions. Despite these studies, the description of the presumably healthy viral flora, i.e. the normal human virome, is still in its infancy regarding viral composition and dynamics. This review summarizes our current knowledge of the human virome under non-pathological conditions.
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Affiliation(s)
- Nikolay Popgeorgiev
- URMITE UM63, CNRS 7278, IRD 198, INSERM 1095, Aix-Marseille Université, Marseille, France
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18
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Sami Saribas A, Abou-Gharbia M, Childers W, Sariyer IK, White MK, Safak M. Essential roles of Leu/Ile/Phe-rich domain of JC virus agnoprotein in dimer/oligomer formation, protein stability and splicing of viral transcripts. Virology 2013; 443:161-76. [PMID: 23747198 DOI: 10.1016/j.virol.2013.05.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 03/21/2013] [Accepted: 05/03/2013] [Indexed: 10/26/2022]
Abstract
Agnoprotein is one of the key regulatory proteins of polyomaviruses, including JCV, BKV and SV40 and is required for a productive viral life cycle. We have recently reported that agnoprotein forms stable dimer/oligomers mediated by a predicted amphipathic α-helix, spanning amino acids (aa), 17 to 42. Deletion of the α-helix renders a replication incompetent virus. Here, we have further characterized this region by a systematic deletion and substitution mutagenesis and demonstrated that a Leu/Ile/Phe-rich domain, (spanning aa 28-39) within α-helix is indispensable for agnoprotein structure and function. Deletion of aa 30-37 severely affects the dimer/oligomer formation and stable expression of the protein. Mutagenesis data also indicate that the residues, 34-36, may be involved in regulation of the splicing events of JCV transcripts. Collectively, these data suggest that the Leu/Ile/Phe-rich domain plays critical roles in agnoprotein function and thus represents a potential target for developing novel therapeutics against JCV infections.
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Affiliation(s)
- A Sami Saribas
- Department of Neuroscience, Laboratory of Molecular Neurovirology, MERB-757, Temple University School of Medicine, 3500 N. Broad Street, Philadelphia, PA 19140, United States
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19
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Scola N, Wieland U, Silling S, Altmeyer P, Stücker M, Kreuter A. Prevalence of human polyomaviruses in common and rare types of non-Merkel cell carcinoma skin cancer. Br J Dermatol 2013; 167:1315-20. [PMID: 22803598 DOI: 10.1111/j.1365-2133.2012.11141.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Little is known about the association of human polyomaviruses (HPyVs) other than Merkel cell polyomavirus (MCPyV) with nonmelanoma skin cancer. OBJECTIVES To evaluate the presence of HPyV6, HPyV7, trichodysplasia spinulosa-associated polyomavirus (TSV), also called HPyV8, and the recently discovered HPyV9 in basal cell carcinoma (BCC), actinic keratosis (AK), squamous cell carcinoma in situ (SCCis), squamous cell carcinoma (SCC), keratoacanthoma (KA), microcystic adnexal carcinoma (MAC) and atypical fibroxanthoma (AFX). METHODS Archival paraffin-embedded samples (n = 193: 41 BCC, 31 AK, 8 SCCis, 52 SCC, 42 KA, 5 MAC and 14 AFX) were analysed for the presence of the respective HPyV by polymerase chain reaction (PCR). HPyV DNA loads (HPyV DNA copies per β-globin gene copy) were determined in all HPyV-positive samples by quantitative real-time PCR. Immunohistochemical analysis of MCPyV large T-antigen (LTA) expression was performed using the monoclonal antibody CM2B4. RESULTS MCPyV DNA was found in 29% of BCC, 19% of AK, 25% of SCCis, 27% of SCC, 29% of KA, 0% of MAC and 29% of AFX. MCPyV DNA loads never exceeded 0·3 MCPyV DNA copies per β-globin gene copy (median 0·004). In the immunohistochemical analysis of MCPyV LTA expression, all evaluated samples (32 MCPyV DNA-positive samples) were LTA negative. HPyV6 DNA was found in 7% of BCC, 3% of AK, 12% of SCCis, 4% of SCC, 5% of KA, and 0% of MAC and AFX. HPyV6 DNA loads never exceeded 0·7 HPyV6 DNA copies per β-globin gene copy (median 0·015). None of the 193 samples was positive for HPyV7, TSV or HPyV9 DNA. CONCLUSIONS Our findings argue against a pathogenic role for MCPyV, HPyV6, HPyV7, TSV and HPyV9 in the analysed types of non-Merkel cell carcinoma skin cancer.
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Affiliation(s)
- N Scola
- Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Gudrunstr. 56, 44791 Bochum, Germany.
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20
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Korup S, Rietscher J, Calvignac-Spencer S, Trusch F, Hofmann J, Moens U, Sauer I, Voigt S, Schmuck R, Ehlers B. Identification of a novel human polyomavirus in organs of the gastrointestinal tract. PLoS One 2013; 8:e58021. [PMID: 23516426 PMCID: PMC3596337 DOI: 10.1371/journal.pone.0058021] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 01/29/2013] [Indexed: 01/12/2023] Open
Abstract
Polyomaviruses are small, non-enveloped viruses with a circular double-stranded DNA genome. Using a generic polyomavirus PCR targeting the VP1 major structural protein gene, a novel polyomavirus was initially identified in resected human liver tissue and provisionally named Human Polyomavirus 12 (HPyV12). Its 5033 bp genome is predicted to encode large and small T antigens and the 3 structural proteins VP1, VP2 and VP3. Phylogenetic analyses did not reveal a close relationship to any known human or animal polyomavirus. Investigation of organs, body fluids and excretions of diseased individuals and healthy subjects with both HPyV12-specific nested PCR and quantitative real-time PCR revealed additional virus-positive samples of resected liver, cecum and rectum tissues and a positive fecal sample. A capsomer-based IgG ELISA was established using the major capsid protein VP1 of HPyV12. Seroprevalences of 23% and 17%, respectively, were determined in sera from healthy adults and adolescents and a pediatric group of children. These data indicate that the virus naturally infects humans and that primary infection may already occur in childhood.
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Affiliation(s)
- Sarah Korup
- Division of Viral Infections, Robert Koch Institute, Berlin, Germany
| | - Janita Rietscher
- Division of Viral Infections, Robert Koch Institute, Berlin, Germany
| | | | - Franziska Trusch
- Division of Viral Infections, Robert Koch Institute, Berlin, Germany
| | - Jörg Hofmann
- Institute of Virology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ugo Moens
- Department of Medical Biology, University of Tromsø, Tromsø, Norway
| | - Igor Sauer
- General, Visceral, and Transplantation Surgery, Experimental Surgery and Regenerative Medicine, Charité-Campus Virchow, Charité Universitätsmedizin Berlin, Germany
| | - Sebastian Voigt
- Division of Viral Infections, Robert Koch Institute, Berlin, Germany
| | - Rosa Schmuck
- General, Visceral, and Transplantation Surgery, Experimental Surgery and Regenerative Medicine, Charité-Campus Virchow, Charité Universitätsmedizin Berlin, Germany
| | - Bernhard Ehlers
- Division of Viral Infections, Robert Koch Institute, Berlin, Germany
- * E-mail:
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21
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Sadeghi M, Aronen M, Chen T, Jartti L, Jartti T, Ruuskanen O, Söderlund-Venermo M, Hedman K. Merkel cell polyomavirus and trichodysplasia spinulosa-associated polyomavirus DNAs and antibodies in blood among the elderly. BMC Infect Dis 2012; 12:383. [PMID: 23270528 PMCID: PMC3560236 DOI: 10.1186/1471-2334-12-383] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 12/22/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Merkel cell polyomavirus (MCPyV) and trichodysplasia spinulosa-associated polyomavirus (TSPyV) are recently found pathogens causing two rare skin disorders, Merkel cell carcinoma (MCC) and trichodysplasia spinulosa (TS). MCC is proportionally common in the elderly and most often is associated with immunosuppression. TS is a folliculocentric infection seen in patients in an immunocompromised state. Little or no baseline information exists, however, on the prevalences of these two viruses among the elderly. Epidemiologic data on this population could help in understanding their natural biology. We wished to determine the occurrences and blood levels of MCPyV and TSPyV DNAs among the elderly and any association between the prevalences of their corresponding antiviral IgG antibodies. METHODS From 394 hospitalized elderly individuals (age ≥65 years) with respiratory symptoms, cardiovascular, and other diseases, we studied 621 serum samples by four different real-time quantitative (q) PCRs, two for the DNAs of MCPyV and two for TSPyV. The IgG antibodies for both viruses among 481 serum samples of 326 subjects were measured with enzyme immunoassays (EIAs), using as antigen recombinant virus-like particles (VLPs). RESULTS Of the 394 patients, 39 (9.9%) were positive at least once for MCPyV DNA by the LT PCR, and 33 (8.4%) by the VP1 PCR, while 6 (1.5%) were positive by both PCR assays. In general, the viral DNA copy numbers were low. In sharp contrast, no TSPyV DNA was detectable with qPCRs for the corresponding genomic regions. The IgG seroprevalence of MCPyV was 59.6% and of TSPyV, 67.3%. CONCLUSIONS MCPyV DNA, unlike TSPyV DNA, occurs in low copy number in serum samples from a notable proportion of aging individuals. Whether this reflects enhanced viral replication possibly due to waning immune surveillance, and is associated with increased MCC risk, deserves exploration.
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Affiliation(s)
- Mohammadreza Sadeghi
- Department of Virology, Haartman Institute, University of Helsinki, Helsinki, Finland.
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22
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Kumar A, Kantele A, Järvinen T, Chen T, Kavola H, Sadeghi M, Hedman K, Franssila R. Trichodysplasia spinulosa-associated polyomavirus (TSV) and Merkel cell polyomavirus: correlation between humoral and cellular immunity stronger with TSV. PLoS One 2012; 7:e45773. [PMID: 23029236 PMCID: PMC3454342 DOI: 10.1371/journal.pone.0045773] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 08/22/2012] [Indexed: 12/19/2022] Open
Abstract
Merkel Cell Polyomavirus (MCV) is a common infectious agent likely to be involved in the pathogenesis of most Merkel cell carcinomas (MCC). Trichodysplasia spinulosa-associated polyomavirus (TSV), which exhibit high seroprevalence in general population, has been detected in trichodysplasia spinulosa (TS) skin lesions suggesting an etiological role for this disease. Previous studies have shown strong MCV-specific T-cell responses, while no data exist on T-cell immunity against TSV. In order to characterize Th-cell immunity against TSV, and to allow comparisons with the MCV-specific Th-cell immunity, we studied TSV-specific proliferation, IFN-γ, IL-10 and IL-13, and MCV-specific IFN-γ and IL-10 responses in 51 healthy volunteers, and in one MCC patient. Recombinant TSV and MCV VP1 virus-like particles (VLPs) were used as antigens. A significant correlation was found between virus-specific Th-cell and antibody responses with TSV; with MCV it proved weaker. Despite significant homology in amino acid sequences, Th-cell crossreactivity was not evident between these viruses. Some subjects seronegative to both TSV and MCV exhibited Th-cell responses to both viruses. The agent initially priming these Th-cells remains an enigma. As CD8+ cells specific to MCV T-Ag oncoprotein clearly provide an important defense against established MCC, the MCV VP1-specific Th-cells may, by suppressing MCV replication with antiviral cytokines such as IFN-γ, significantly contribute to preventing the full process of oncogenesis.
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MESH Headings
- Adult
- Antigens, Fungal/immunology
- Antigens, Viral/immunology
- Candida albicans/immunology
- Capsid Proteins/immunology
- Carcinoma, Merkel Cell/immunology
- Carcinoma, Merkel Cell/virology
- Cell Proliferation
- Cells, Cultured
- Female
- Histocompatibility Antigens Class II/metabolism
- Histocompatibility Antigens Class II/physiology
- Humans
- Immunity, Cellular
- Immunity, Humoral
- Immunoglobulin G/blood
- Interferon-gamma/metabolism
- Interleukin-10/metabolism
- Male
- Merkel cell polyomavirus/immunology
- Merkel cell polyomavirus/physiology
- Middle Aged
- Polyomavirus Infections/blood
- Polyomavirus Infections/immunology
- Polyomavirus Infections/virology
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- T-Lymphocytes, Helper-Inducer/physiology
- T-Lymphocytes, Helper-Inducer/virology
- Tumor Virus Infections/blood
- Tumor Virus Infections/immunology
- Tumor Virus Infections/virology
- Virus Replication
- Young Adult
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Affiliation(s)
- Arun Kumar
- Departments of Virology, Haartman Institute, University of Helsinki, Helsinki, Finland.
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Maggi F, Macera L, Focosi D, Vatteroni ML, Boggi U, Antonelli G, Eloit M, Pistello M. Human gyrovirus DNA in human blood, Italy. Emerg Infect Dis 2012; 18:956-9. [PMID: 22608195 PMCID: PMC3358173 DOI: 10.3201/eid1806.120179] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
HGyV in blood suggests the infection might be systemic. Human gyrovirus (HGyV) is a recent addition to the list of agents found in humans. Prevalence, biologic properties, and clinical associations of this novel virus are still incompletely understood. We used qualitative PCRs to detect HGyV in blood samples of 301 persons from Italy. HGyV genome was detected in 3 of 100 solid organ transplant recipients and in 1 HIV-infected person. The virus was not detected in plasma samples from healthy persons. Furthermore, during observation, persons for whom longitudinal plasma samples were obtained had transient and scattered presence of circulating HGyV. Sequencing of a 138-bp fragment showed nucleotide identity among all the HGyV isolates. These results show that HGyV can be present in the blood of infected persons. Additional studies are needed to investigate possible clinical implications.
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JC virus agnoprotein enhances large T antigen binding to the origin of viral DNA replication: evidence for its involvement in viral DNA replication. Virology 2012; 433:12-26. [PMID: 22840425 DOI: 10.1016/j.virol.2012.06.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 05/25/2012] [Accepted: 06/11/2012] [Indexed: 10/28/2022]
Abstract
Agnoprotein is required for the successful completion of the JC virus (JCV) life cycle and was previously shown to interact with JCV large T-antigen (LT-Ag). Here, we further characterized agnoprotein's involvement in viral DNA replication. Agnoprotein enhances the DNA binding activity of LT-Ag to the viral origin (Ori) without directly interacting with DNA. The predicted amphipathic α-helix of agnoprotein plays a major role in this enhancement. All three phenylalanine (Phe) residues of agnoprotein localize to this α-helix and Phe residues in general are known to play critical roles in protein-protein interaction, protein folding and stability. The functional relevance of all Phe residues was investigated by mutagenesis. When all were mutated to alanine (Ala), the mutant virus (F31AF35AF39A) replicated significantly less efficiently than each individual Phe mutant virus alone, indicating the importance of Phe residues for agnoprotein function. Collectively, these studies indicate a close involvement of agnoprotein in viral DNA replication.
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25
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Agnoprotein of mammalian polyomaviruses. Virology 2012; 432:316-26. [PMID: 22726243 PMCID: PMC7111918 DOI: 10.1016/j.virol.2012.05.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 03/30/2012] [Accepted: 05/29/2012] [Indexed: 11/20/2022]
Abstract
Polyomaviruses are naked viruses with an icosahedral capsid that surrounds a circular double-stranded DNA molecule of about 5000 base-pairs. Their genome encodes at least five proteins: large and small tumor antigens and the capsid proteins VP1, VP2 and VP3. The tumor antigens are expressed during early stages of the viral life cycle and are implicated in the regulation of viral transcription and DNA replication, while the capsid proteins are produced later during infection. Members of the Polyomaviridae family have been isolated in birds (Avipolyomavirus) and mammals (Orthopolyomavirus and Wukipolyomavirus). Some mammalian polyomaviruses encode an additional protein, referred to as agnoprotein, which is a relatively small polypeptide that exerts multiple functions. This review discusses the structure, post-translational modifications, and functions of agnoprotein, and speculates why not all polyomaviruses express this protein.
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26
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Imajoh M, Hashida Y, Taniguchi A, Kamioka M, Daibata M. Novel human polyomaviruses, Merkel cell polyomavirus and human polyomavirus 9, in Japanese chronic lymphocytic leukemia cases. J Hematol Oncol 2012; 5:25. [PMID: 22658224 PMCID: PMC3407023 DOI: 10.1186/1756-8722-5-25] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Accepted: 06/01/2012] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Chronic lymphocytic leukemia (CLL) is the rarest adult leukemia in Japan, whereas it is the most common leukemia in the Western world. Recent studies from the United States and Germany suggest a possible etiological association between Merkel cell polyomavirus (MCPyV) and CLL, although no data have been reported from Eastern countries. To increase the volume of relevant data, this study investigated the prevalence and DNA loads of MCPyV and human polyomavirus 9 (HPyV9), another lymphotropic polyomavirus, in Japanese CLL cases. FINDINGS We found that 9/27 CLL cases (33.3 %) were positive for MCPyV using quantitative real-time polymerase chain reaction analysis. The viral DNA loads ranged from 0.000017 to 0.0012 copies per cell. All cases were negative for HPyV9. One MCPyV-positive CLL case was evaluated by mutational analysis of the large T (LT) gene, which indicated the presence of wild-type MCPyV without a nucleotide deletion. DNA sequence analysis of the entire small T (ST) gene and the partial LT gene revealed that a Japanese MCPyV isolate, designated CLL-JK, had two nucleotide gaps when compared with the reference sequence of the North American isolate MCC350. CONCLUSIONS This study provides the first evidence that MCPyV is present in a subset of Japanese CLL cases with low viral DNA loads. MCPyV and HPyV9 are unlikely to contribute directly to the development of CLL in the majority of Japanese cases. MCPyV isolated from the Japanese CLL cases may constitute an Asian group and its pathogenicity needs to be clarified in future studies.
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Affiliation(s)
- Masayuki Imajoh
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
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Van Ghelue M, Khan MTH, Ehlers B, Moens U. Genome analysis of the new human polyomaviruses. Rev Med Virol 2012; 22:354-77. [PMID: 22461085 DOI: 10.1002/rmv.1711] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 01/31/2012] [Accepted: 02/08/2012] [Indexed: 11/09/2022]
Abstract
Polyomaviridae is a growing family of naked, double-stranded DNA viruses that infect birds and mammals. The last few years, several new members infecting birds or primates have been discovered, including seven human polyomaviruses: KI, WU, Merkel cell polyomavirus, HPyV6, HPyV7, trichodysplasia spinulosa-associated polyomavirus, and HPyV9. In addition, DNA and antibodies against the monkey lymphotropic polyomavirus have been detected in humans, indicating that this virus can also infect man. However, little is known about the route of infection, transmission, cell tropism, and, with the exception of Merkel cell polyomavirus and trichodysplasia spinulosa-associated polyomavirus, the pathogenicity of these viruses. This review compares the genomes of these emerging human polyomaviruses with previously known polyomaviruses detected in man, reports mutations in different isolates, and predicts structural and functional properties of their viral proteins.
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Affiliation(s)
- Marijke Van Ghelue
- Department of Medical Genetics, University Hospital Northern-Norway, Tromsø, Norway
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Siegel RD. Classification of Human Viruses. PRINCIPLES AND PRACTICE OF PEDIATRIC INFECTIOUS DISEASES 2012. [PMCID: PMC7151899 DOI: 10.1016/b978-1-4377-2702-9.00203-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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