51
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Gelaw A, Pietsch C, Liebert UG. Genetic diversity of human adenovirus and human astrovirus in children with acute gastroenteritis in Northwest Ethiopia. Arch Virol 2019; 164:2985-2993. [DOI: 10.1007/s00705-019-04421-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 08/29/2019] [Indexed: 02/06/2023]
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52
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Mao N, Zhu Z, Rivailler P, Yang J, Li Q, Han G, Yin J, Yu D, Sun L, Jiang H, Zhan Z, Xiang X, Mei H, Wang X, Zhang B, Yu P, Li H, Lei Z, Xu W. Multiple divergent Human mastadenovirus C co-circulating in mainland of China. INFECTION GENETICS AND EVOLUTION 2019; 76:104035. [PMID: 31505276 DOI: 10.1016/j.meegid.2019.104035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 01/22/2023]
Abstract
The human mastadenovirus C (HAdV-C) cause respiratory infections in children. Homologous recombination was clearly involved in the molecular evolution of HAdV-A, B, and D, but little is known about the molecular evolution of HAdV-C. From 2000 to 2016, 201 HAdV-C strains were collected from nine provinces covering six administrative regions of mainland of China via 3 existing surveillance programs, namely the febrile respiratory syndrome surveillance, the acute flaccid paralysis surveillance, and the hand, foot, and mouth disease surveillance system. The genes coding for the capsid protein (penton base, hexon, and fiber) of 201 HAdV-C strains were sequenced and compared with representative sequences publicly available. In addition, the whole genome sequence of 24 representative strains of HAdV-C was generated for further recombination analysis. Phylogenetic analysis of the penton base sequences of HAdV-C revealed six genetic groups (labelled as Px1-6), which showed that the penton base had more variation than previously thought. Based on the penton base, hexon, and fiber gene sequences, 16 new genetic patterns of HAdV-C circulating in mainland of China were identified in this study. Whole genome sequence analysis revealed frequent recombination events among HAdV-C genomes. This study is highly beneficial for case classification, tracking the transmission chain, and further epidemiological exploration of HAdV-C-related severe clinical diseases in the near future. Our data demonstrated that multiple newly divergent HAdV-C co-circulated across mainland China during the research period.
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Affiliation(s)
- Naiying Mao
- WHO WPRO Regional Reference Measles, Rubella Laboratory and Key Laboratory of Medical Virology Ministry of Health, National Institute for Viral Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Zhen Zhu
- WHO WPRO Regional Reference Measles, Rubella Laboratory and Key Laboratory of Medical Virology Ministry of Health, National Institute for Viral Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Pierre Rivailler
- WHO WPRO Regional Reference Measles, Rubella Laboratory and Key Laboratory of Medical Virology Ministry of Health, National Institute for Viral Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Jianfang Yang
- Shanxi Provincial Center for Disease Control and Prevention, Taiyuan, China
| | - Qi Li
- Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang, China
| | - Guangyue Han
- Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang, China
| | - Jie Yin
- Yunnan Provincial Center for Disease Control and Prevention, Kunming, China
| | - Deshan Yu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou, China
| | - Liwei Sun
- Changchun Children's Hospital, Changchun, China
| | | | - Zhifei Zhan
- Hunan Provincial Center for Disease Control and Prevention, Changsha, China
| | - Xingyu Xiang
- Hunan Provincial Center for Disease Control and Prevention, Changsha, China
| | - Hong Mei
- Xizang Provincial Center for Disease Control and Prevention, Lasa, China
| | - Xianjun Wang
- Shandong Provincial Center for Disease Control and Prevention, Jinan, China
| | - Bo Zhang
- Shandong Provincial Center for Disease Control and Prevention, Jinan, China
| | - Pengbo Yu
- Shaanxi Provincial Center for Disease Control and Prevention, Xian, China
| | - Hong Li
- WHO WPRO Regional Reference Measles, Rubella Laboratory and Key Laboratory of Medical Virology Ministry of Health, National Institute for Viral Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China; Anhui University of Science and Technology, Huainan, China
| | - Zhenqiang Lei
- WHO WPRO Regional Reference Measles, Rubella Laboratory and Key Laboratory of Medical Virology Ministry of Health, National Institute for Viral Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Wenbo Xu
- WHO WPRO Regional Reference Measles, Rubella Laboratory and Key Laboratory of Medical Virology Ministry of Health, National Institute for Viral Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China.
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53
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Kosulin K. Intestinal HAdV Infection: Tissue Specificity, Persistence, and Implications for Antiviral Therapy. Viruses 2019; 11:v11090804. [PMID: 31480296 PMCID: PMC6783822 DOI: 10.3390/v11090804] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 02/07/2023] Open
Abstract
Human adenovirus (HAdV) causes infections predominantly in early childhood and the tissue tropism of specific HAdV species determines the clinical manifestation, including infections of the gastrointestinal tract, respiratory tract, and keratoconjunctivitis. Why HAdV shows such a tropism has not yet been fully elucidated, but in the intestine different mechanisms for virus entry or resistence to immune modulatory factors have been described. Recently identified antiviral strategies by interferons provide evidence about the repression of E1A and maybe even promote HAdV persistence. The presence of HAdV in a persistent status in the gut is of importance in the setting of pediatric stem cell transplant recipients where HAdV detection in stool usually preceds clinical signs and severe infections are related to mortality. The reactivation of persistent intestinal HAdV infections in these patients needs further investigation also with regard to successful therapy options. In addition, several newly identified recombinant HAdV types have been isolated from stool samples, thus raising the question of possible recombination events in the gut. In this review, intestinal HAdV infections are discussed in relation to the tissue tropism, persistence, recombination, and new in-vitro models to enhance the knowledge about virus–host interactions and support the development of new treatment approaches.
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Affiliation(s)
- Karin Kosulin
- Molecular Microbiology, Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria.
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54
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Colle JH, Périchon B, Garcia A. Antitumor and antibacterial properties of virally encoded cationic sequences. Biologics 2019; 13:117-126. [PMID: 31417238 PMCID: PMC6599856 DOI: 10.2147/btt.s201287] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 03/22/2019] [Indexed: 11/30/2022]
Abstract
Objective: The objective of this study was to test our Viral Quinta Columna Strategy (VQCS), a new biological hypothesis predicting that specific multifunctional virally encoded cationic domains may have the capacity to penetrate human cells and interact with PP2A proteins to deregulate important human intracellular pathways, and may display LL37 cathelicidin-like antagonistic effects against multiple pathogens such as bacteria or viruses. Methods: We comparatively analyzed the host defense properties of adenodiaphorins and of some specific cationic sequences encoded by different viruses using two distinct biological models: U87G, a well-characterized cell tumor model; and a group B Streptococcus agalactiae NEM316 ΔdltA, highly sensitive to LL37 cathelicidin. Results: We found that the adenovirus type 2 E4orf4 is a cell-permeable protein containing a new E4orf464–95 protein transduction domain, named large adenodiaphorin or LadD64–95. Interestingly, the host defense LL37 peptide is the unique cathelicidin in humans. In this context, we also demonstrated that similarly to LL37 LadD64–95, several virally encoded cationic sequences including the C-terminus HIV-1 89.6 Vpr77–92, shorter adenodiaphorins AdD67–84/AdD/69–84/AdD69–83, as well as HIV-2 Tat67–90 and JC polyomavirus small t115–134, displayed similar toxicity against Gram-positive S. agalactiae NEM316 ΔdltA strain. Finally, LadD64–95, adenodiaphorin AdD67–84, AdD69–84, and LL37 and LL17–32 cathelicidin peptides also inhibited the survival of human U87G glioblastoma cells. Conclusion: In this study, we demonstrated that specific cationic sequences encoded by four different viruses displayed antibacterial activities against S. agalactiae NEM316 ΔdltA strain. In addition, HIV-1 Vpr71–92 and adenovirus 2 E4orf464–95, two cationic penetrating sequences that bind PP2A, inhibited the survival of U87G glioblastoma cells. These results illustrate the host defense properties of virally encoded sequences and could represent an initial step for future complete validation of the VQCS hypothesis.
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Affiliation(s)
- Jean-Hervé Colle
- Laboratoire E3 des Phosphatases-Unité RMN, Institut Pasteur, Paris, France
| | - Bruno Périchon
- Unité de Biologie des Bactéries pathogènes à Gram-positif, Institut Pasteur, Paris, France
| | - Alphonse Garcia
- Laboratoire E3 des Phosphatases-Unité RMN, Institut Pasteur, Paris, France.,Département de Biologie Structurale et Chimie et pôle Dde-Design de la Biologie, Institut Pasteur, Paris, France
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55
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Carlin CR. New Insights to Adenovirus-Directed Innate Immunity in Respiratory Epithelial Cells. Microorganisms 2019; 7:microorganisms7080216. [PMID: 31349602 PMCID: PMC6723309 DOI: 10.3390/microorganisms7080216] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/17/2019] [Accepted: 07/19/2019] [Indexed: 02/06/2023] Open
Abstract
The nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) family of transcription factors is a key component of the host innate immune response to infectious adenoviruses and adenovirus vectors. In this review, we will discuss a regulatory adenoviral protein encoded by early region 3 (E3) called E3-RIDα, which targets NFκB through subversion of novel host cell pathways. E3-RIDα down-regulates an EGF receptor signaling pathway, which overrides NFκB negative feedback control in the nucleus, and is induced by cell stress associated with viral infection and exposure to the pro-inflammatory cytokine TNF-α. E3-RIDα also modulates NFκB signaling downstream of the lipopolysaccharide receptor, Toll-like receptor 4, through formation of membrane contact sites controlling cholesterol levels in endosomes. These innate immune evasion tactics have yielded unique perspectives regarding the potential physiological functions of host cell pathways with important roles in infectious disease.
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Affiliation(s)
- Cathleen R Carlin
- Department of Molecular Biology and Microbiology and the Case Comprehensive Cancer Center, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA.
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56
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Whittaker E, López-Varela E, Broderick C, Seddon JA. Examining the Complex Relationship Between Tuberculosis and Other Infectious Diseases in Children. Front Pediatr 2019; 7:233. [PMID: 31294001 PMCID: PMC6603259 DOI: 10.3389/fped.2019.00233] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 05/22/2019] [Indexed: 12/21/2022] Open
Abstract
Millions of children are exposed to tuberculosis (TB) each year, many of which become infected with Mycobacterium tuberculosis. Most children can immunologically contain or eradicate the organism without pathology developing. However, in a minority, the organism overcomes the immunological constraints, proliferates and causes TB disease. Each year a million children develop TB disease, with a quarter dying. While it is known that young children and those with immunodeficiencies are at increased risk of progression from TB infection to TB disease, our understanding of risk factors for this transition is limited. The most immunologically disruptive process that can happen during childhood is infection with another pathogen and yet the impact of co-infections on TB risk is poorly investigated. Many diseases have overlapping geographical distributions to TB and affect similar patient populations. It is therefore likely that infection with viruses, bacteria, fungi and protozoa may impact on the risk of developing TB disease following exposure and infection, although disentangling correlation and causation is challenging. As vaccinations also disrupt immunological pathways, these may also impact on TB risk. In this article we describe the pediatric immune response to M. tuberculosis and then review the existing evidence of the impact of co-infection with other pathogens, as well as vaccination, on the host response to M. tuberculosis. We focus on the impact of other organisms on the risk of TB disease in children, in particularly evaluating if co-infections drive host immune responses in an age-dependent way. We finally propose priorities for future research in this field. An improved understanding of the impact of co-infections on TB could assist in TB control strategies, vaccine development (for TB vaccines or vaccines for other organisms), TB treatment approaches and TB diagnostics.
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Affiliation(s)
- Elizabeth Whittaker
- Department of Paediatrics, Imperial College London, London, United Kingdom
- Department of Paediatric Infectious Diseases, Imperial College Healthcare NHS Trust, St. Mary's Campus, London, United Kingdom
| | - Elisa López-Varela
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Claire Broderick
- Department of Paediatrics, Imperial College London, London, United Kingdom
| | - James A. Seddon
- Department of Paediatrics, Imperial College London, London, United Kingdom
- Department of Paediatric Infectious Diseases, Imperial College Healthcare NHS Trust, St. Mary's Campus, London, United Kingdom
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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57
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Mennechet FJD, Paris O, Ouoba AR, Salazar Arenas S, Sirima SB, Takoudjou Dzomo GR, Diarra A, Traore IT, Kania D, Eichholz K, Weaver EA, Tuaillon E, Kremer EJ. A review of 65 years of human adenovirus seroprevalence. Expert Rev Vaccines 2019; 18:597-613. [PMID: 31132024 DOI: 10.1080/14760584.2019.1588113] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Introduction: Human adenovirus (HAdV)-derived vectors have been used in numerous pre-clinical and clinical trials during the last 40 years. Current research in HAdV-based vaccines focuses on improving transgene immunogenicity and safety. Because pre-existing humoral immunity against HAdV types correlate with reduced vaccine efficacy and safety, many groups are exploring the development of HAdV types vectors with lower seroprevalence. However, global seroepidemiological data are incomplete. Areas covered: The goal of this review is to centralize 65 years of research on (primarily) HAdV epidemiology. After briefly addressing adenovirus biology, we chronical HAdV seroprevalence studies and highlight major milestones. Finally, we analyze data from about 50 studies with respect to HAdVs types that are currently used in the clinic, or are in the developmental pipeline. Expert opinion: Vaccination is among the most efficient tools to prevent infectious disease. HAdV-based vaccines have undeniable potential, but optimization is needed and antivector immunity remains a challenge if the same vectors are to be administrated to different populations. Here, we identify gaps in our knowledge and the need for updated worldwide epidemiological data.
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Affiliation(s)
- Franck J D Mennechet
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Océane Paris
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Aline Raissa Ouoba
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France.,b UMR 1058, Pathogenesis and Control of Chronic Infections , INSERM - University of Montpellier - Establishment Français du Sang - Centre Hospitalier Universitaire de Montpellier , Montpellier , France.,c Département des sciences et de la recherche clinique , Centre Muraz , Bobo-Dioulasso , Burkina Faso
| | - Sofia Salazar Arenas
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Sodiomon B Sirima
- d Centre National de Recherche et de Formation sur le Paludisme , Ouagadougou , Burkina Faso.,e Groupe de Recherche Action en Santé (GRAS) , Ouagadougou , Burkina Faso
| | - Guy R Takoudjou Dzomo
- f Complexe Hospitalo Universitaire « Le Bon Samaritain » , N'Djamena , Republic of Chad
| | - Amidou Diarra
- d Centre National de Recherche et de Formation sur le Paludisme , Ouagadougou , Burkina Faso
| | - Isidore T Traore
- c Département des sciences et de la recherche clinique , Centre Muraz , Bobo-Dioulasso , Burkina Faso
| | - Dramane Kania
- c Département des sciences et de la recherche clinique , Centre Muraz , Bobo-Dioulasso , Burkina Faso
| | - Karsten Eichholz
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Eric A Weaver
- g University of Nebraska-Lincoln, School of Biological Sciences , Lincoln , NE , USA
| | - Edouard Tuaillon
- b UMR 1058, Pathogenesis and Control of Chronic Infections , INSERM - University of Montpellier - Establishment Français du Sang - Centre Hospitalier Universitaire de Montpellier , Montpellier , France
| | - Eric J Kremer
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
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58
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Proenca-Modena JL, de Souza Cardoso R, Criado MF, Milanez GP, de Souza WM, Parise PL, Bertol JW, de Jesus BLS, Prates MCM, Silva ML, Buzatto GP, Demarco RC, Valera FCP, Tamashiro E, Anselmo-Lima WT, Arruda E. Human adenovirus replication and persistence in hypertrophic adenoids and palatine tonsils in children. J Med Virol 2019; 91:1250-1262. [PMID: 30815882 PMCID: PMC7166372 DOI: 10.1002/jmv.25441] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 12/31/2022]
Abstract
The role of human adenovirus (HAdV) infection in different acute diseases, such as febrile exudative tonsillitis, conjunctivitis, and pharyngoconjunctival fever is well established. However, the relationships, if any, of HAdV persistence and reactivation in the development of the chronic adenotonsillar disease is not fully understood. The present paper reports a 3-year cross-sectional hospital-based study aimed at detecting and quantifying HAdV DNA and mRNA of the HAdV hexon gene in adenoid and palatine tonsil tissues and nasopharyngeal secretions (NPS) from patients with adenotonsillar hypertrophy or recurrent adenotonsillitis. HAdV C, B, and E were detectable in nearly 50% of the patients, with no association with the severity of airway obstruction, nor with the presence of recurrent tonsillitis, sleep apnea or otitis media with effusion (OME). Despite the higher rates of respiratory viral coinfections in patients with HAdV, the presence of other viruses, including DNA and RNA viruses, had no association with HAdV replication or shedding in secretions. Higher HAdV loads in adenoids showed a significant positive correlation with the presence of sleep apnea and the absence of OME. Although this study indicates that a significant proportion (~85%) of individuals with chronic adenotonsillar diseases have persistent nonproductive HAdV infection, including those by HAdV C, B, and E, epithelial and subepithelial cells in tonsils seem to be critical for HAdV C production and shedding in NPS in some patients, since viral antigen was detected in these regions by immunohistochemistry in four patients, all of which were also positive for HAdV mRNA detection.
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Affiliation(s)
- José Luiz Proenca-Modena
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Ricardo de Souza Cardoso
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Miriã Ferreira Criado
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Cell Biology, Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Guilherme Paier Milanez
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - William Marciel de Souza
- Department of Cell Biology, Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Pierina Lorencini Parise
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Jéssica Wildgrube Bertol
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Bruna Lais Santos de Jesus
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Maria Lúcia Silva
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Cell Biology, Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Guilherme Pietrucci Buzatto
- Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ricardo Cassiano Demarco
- Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Fabiana Cardoso Pereira Valera
- Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Edwin Tamashiro
- Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Wilma Terezinha Anselmo-Lima
- Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Eurico Arruda
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Cell Biology, Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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59
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Abstract
Currently, 88 different Human Adenovirus (HAdV) types are grouped into seven HAdV species A to G. Most types (57) belong to species HAdV-D. Recombination between capsid genes (hexon, penton and fiber) is the main factor contributing to the diversity in species HAdV-D. Noteworthy, species HAdV-C contains so far only five types, although species HAdV-C is highly prevalent and clinically significant in immunosuppressed patients. Therefore, the evolution of species HAdV-C was studied by generating 51 complete genome sequences from circulating strains. Clustering of the whole genome HAdV-C sequences confirmed classical typing results (fifteen HAdV-C1, thirty HAdV-C2, four HAdV-C5, two HAdV-C6). However, two HAdV-C2 strains had a novel penton base sequence and thus were re-labeled as the novel type HAdV-C89. Fiber and early gene region 3 (E3) sequences clustered always with the corresponding prototype sequence but clustering of the E4 region indicated recombination events in 26 out of the 51 sequenced specimens. Recombination of the E1 gene region was detected in 16 circulating strains. As early gene region sequences are not considered in the type definition of HAdVs, evolution of HAdV-C remains on the subtype level. Nonetheless, recombination of the E1 and E4 gene regions may influence the virulence of HAdV-C strains.
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60
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Adenovirus 5 produces obesity and adverse metabolic, morphological, and functional changes in the long term in animals fed a balanced diet or a high-fat diet: a study on hamsters. Arch Virol 2019; 164:775-786. [PMID: 30666458 DOI: 10.1007/s00705-018-04132-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/26/2018] [Indexed: 12/20/2022]
Abstract
Adenovirus 5 (Ad-5) infection is a common cause of acute respiratory infections and the main vector used in gene therapy. There are few studies on the relationship of Ad-5 to obesity. In the present study, we evaluated the chronic effects of Ad-5 infection on golden (Syrian) hamsters fed either a balanced diet (BD) or a high-fat diet (HFD). After a single inoculation with Ad-5 (1 × 107 pfu), the body weight of the animals was measured weekly. Medium-term (22 weeks) serum biochemical analyses and long-term (44 weeks) liver morphology, adiposity, and locomotive functionality (movement velocity) assessments were carried out. In the animals fed the BD, adenovirus infection produced hyperglycemia and hyperlipidemia. In the long term, it produced a 57% increase in epididymal pad fat and a 30% body weight gain compared with uninoculated animals. In addition, morphological changes related to non-alcoholic fatty liver disease (NAFLD) were observed. The animals fed the HFD had similar but more severe changes. In addition, the hamsters presented an obesity paradox: at the end of the study, the animals that had the most morphological and functional changes (significantly reduced movement velocity) had the lowest body weight. Despite the fact that an HFD appears to be a more harmful factor in the long term than adenovirus infection alone, infection could increase the severity of harmful effects in individuals with an HFD. Epidemiological studies are needed to evaluate the effect of adenovirus as a precursor of chronic liver and cardiovascular diseases, including the chronic effects of gene therapy.
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61
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Primo D, Pacheco GT, Timenetsky MDCST, Luchs A. Surveillance and molecular characterization of human adenovirus in patients with acute gastroenteritis in the era of rotavirus vaccine, Brazil, 2012–2017. J Clin Virol 2018; 109:35-40. [DOI: 10.1016/j.jcv.2018.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 10/10/2018] [Accepted: 10/25/2018] [Indexed: 10/28/2022]
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62
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Kosulin K, Kernbichler S, Pichler H, Lawitschka A, Geyeregger R, Witt V, Lion T. Post-transplant Replication of Torque Teno Virus in Granulocytes. Front Microbiol 2018; 9:2956. [PMID: 30555452 PMCID: PMC6281686 DOI: 10.3389/fmicb.2018.02956] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/16/2018] [Indexed: 12/17/2022] Open
Abstract
Torque Teno virus (TTV) in humans is characterized by ubiquitous occurrence in peripheral blood (PB), without any related disease described to date. Several studies reported a significant increase of TTV plasma DNA levels in allogeneic transplant recipients, and suggested a correlation of elevated virus titers with immunosuppression and transplant-related complications. However, the site of viral replication in this setting has remained unclear. We have studied TTV in serial plasma specimens derived from 43 pediatric allogeneic hematopoietic stem cell transplantation (HSCT) recipients by RQ-PCR, and found increasing TTV-DNA levels in all patients post-transplant, with a peak around day +100 and maximum virus copy numbers reaching 4 × 10E9/ml. To assess whether the virus replicates in PB-cells, leukocyte subsets including granulocytes, monocytes, NK-cells, T- and B-lymphocytes were serially isolated by flow-sorting for TTV analysis in 19 patients. The virus was undetectable in most cell types, but was identified in granulocytes in all instances, revealing a median DNA copy number increase of 1.8 logs between days +30–100 post-transplant. Our data therefore provide evidence for TTV replication in granulocytes in this setting. In a control cohort of immunocompetent children and in HSCT recipients before day +30, TTV positivity in granulocytes was less common (33%), and the copy numbers were considerably lower. However, rising TTV replication about 2 weeks after granulocyte engraftment (>500 cells/μl) was observed suggesting that granulocyte recovery might be required for TTV expansion in severely immunosuppressed transplant recipients.
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Affiliation(s)
- Karin Kosulin
- Children's Cancer Research Institute, Vienna, Austria
| | | | | | | | | | - Volker Witt
- St. Anna Children's Hospital, Vienna, Austria
| | - Thomas Lion
- Children's Cancer Research Institute, Vienna, Austria.,Department of Pediatrics, Medical University of Vienna, Vienna, Austria
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63
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Baldassarri RJ, Kumar D, Baldassarri S, Cai G. Diagnosis of Infectious Diseases in the Lower Respiratory Tract: A Cytopathologist's Perspective. Arch Pathol Lab Med 2018; 143:683-694. [PMID: 30203986 DOI: 10.5858/arpa.2017-0573-ra] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Respiratory cytology continues to play an important role in the diagnosis of lower respiratory tract infections. Prompt, accurate diagnosis of causative organisms is of paramount importance, particularly in immunosuppressed patients. In addition, a rapidly expanding arsenal of ancillary testing is now available, aiding tremendously in organism identification. OBJECTIVE.— To provide an updated review on the cytomorphologic features of common organisms in lower respiratory tract infection. Relevant ancillary tests, differential diagnoses, and potential pitfalls of organism identification will also be discussed. DATA SOURCES.— Data for this review were gathered from PubMed searches of infectious diseases of the lower respiratory tract, especially related to the diagnoses. CONCLUSIONS.— The lower respiratory tract is subject to infection by a wide variety of infectious agents. Pathologists should be familiar with common organisms, including their general clinical characteristics, cytomorphologic features, differential diagnoses, and ancillary methods of detection. Above all, correlation with microbiologic and clinical information is necessary to make a confident diagnosis of infection.
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Affiliation(s)
- Rebecca J Baldassarri
- From the Departments of Pathology (Drs R. J. Baldassarri, Kumar, and Cai) and Internal Medicine (Dr S. Baldassarri), Yale School of Medicine, New Haven, Connecticut
| | - Deepika Kumar
- From the Departments of Pathology (Drs R. J. Baldassarri, Kumar, and Cai) and Internal Medicine (Dr S. Baldassarri), Yale School of Medicine, New Haven, Connecticut
| | - Stephen Baldassarri
- From the Departments of Pathology (Drs R. J. Baldassarri, Kumar, and Cai) and Internal Medicine (Dr S. Baldassarri), Yale School of Medicine, New Haven, Connecticut
| | - Guoping Cai
- From the Departments of Pathology (Drs R. J. Baldassarri, Kumar, and Cai) and Internal Medicine (Dr S. Baldassarri), Yale School of Medicine, New Haven, Connecticut
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64
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Ismail AM, Lee JS, Lee JY, Singh G, Dyer DW, Seto D, Chodosh J, Rajaiya J. Adenoviromics: Mining the Human Adenovirus Species D Genome. Front Microbiol 2018; 9:2178. [PMID: 30254627 PMCID: PMC6141750 DOI: 10.3389/fmicb.2018.02178] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 08/24/2018] [Indexed: 12/19/2022] Open
Abstract
Human adenovirus (HAdV) infections cause disease world-wide. Whole genome sequencing has now distinguished 90 distinct genotypes in 7 species (A-G). Over half of these 90 HAdVs fall within species D, with essentially all of the HAdV-D whole genome sequences generated in the last decade. Herein, we describe recent new findings made possible by mining of this expanded genome database, and propose future directions to elucidate new functional elements and new functions for previously known viral components.
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Affiliation(s)
- Ashrafali M Ismail
- Howe Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Ji Sun Lee
- Howe Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Jeong Yoon Lee
- Howe Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States.,Molecular Virology Laboratory, Korea Zoonosis Research Institute, Jeonbuk National University, Jeonju, South Korea
| | - Gurdeep Singh
- Howe Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States.,Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - David W Dyer
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Donald Seto
- Bioinformatics and Computational Biology Program, School of Systems Biology, George Mason University, Manassas, VI, United States
| | - James Chodosh
- Howe Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Jaya Rajaiya
- Howe Laboratory, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
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65
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Fas activity mediates airway inflammation during mouse adenovirus type 1 respiratory infection. Virology 2018; 521:129-137. [PMID: 29908447 DOI: 10.1016/j.virol.2018.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 12/14/2022]
Abstract
CD8 T cells play a key role in clearance of mouse adenovirus type 1 (MAV-1) from the lung and contribute to virus-induced airway inflammation. We tested the hypothesis that interactions between Fas ligand (FasL) and Fas mediate the antiviral and proinflammatory effects of CD8 T cells. FasL and Fas expression were increased in the lungs of C57BL/6 (B6) mice during MAV-1 respiratory infection. Viral replication and weight loss were similar in B6 and Fas-deficient (lpr) mice. Histological evidence of pulmonary inflammation was similar in B6 and lpr mice, but lung mRNA levels and airway proinflammatory cytokine concentrations were lower in MAV-1-infected lpr mice compared to infected B6 mice. Virus-induced apoptosis in lungs was not affected by Fas deficiency. Our results suggest that the proinflammatory effects of CD8 T cells during MAV-1 infection are mediated in part by Fas activation and are distinct from CD8 T cell antiviral functions.
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66
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Radke JR, Cook JL. Human adenovirus infections: update and consideration of mechanisms of viral persistence. Curr Opin Infect Dis 2018; 31:251-256. [PMID: 29601326 PMCID: PMC6367924 DOI: 10.1097/qco.0000000000000451] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
PURPOSE OF REVIEW To provide an update on recent studies of human adenoviral (HAdV) infections and to explore the mechanisms of viral persistence and the role of persistent infection in disseminated disease in immunocompromised patients. RECENT FINDINGS Human adenoviruses continue to be a problem in ophthalmology clinics and to cause periodic, limited, global outbreaks of respiratory disease. Ad14p1 remains in worldwide circulation and continues to result in miniepidemics of severe respiratory infections. New variants of Ad4 and Ad7 have emerged in both the United States and Asia. The severity of Ad4 infections in outbreaks appears to depend more on preexisting conditions in patients than on genetically determined, viral virulence factors, in contrast to limited evidence of Ad7 mutations that may convey increased viral pathogenesis. Reactivation of persistent adenovirus infection appears to be the primary source of disseminated infections in immunocompromised patients. New studies suggest that establishment of persistent infection and reactivation are related to variations in interferon-mediated control of viral replication. SUMMARY Innate immune responses can create a state of adenoviral persistence, and repression of these host defenses can result in reactivation and dissemination of infection. A better definition of the molecular mechanisms of immune-mediated control of viral replication might lead to new strategies for treatment of HAdV reactivation and dissemination.
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Affiliation(s)
- Jay R Radke
- Boise VA Hospital, Idaho Veterans Research and Education Foundation, Boise, Idaho
| | - James L Cook
- Loyola University Chicago - Stritch School of Medicine and Edward Hines, Jr. Veterans Administration Hospital, Chicago, Illinois, USA
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67
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Hiwarkar P, Kosulin K, Cesaro S, Mikulska M, Styczynski J, Wynn R, Lion T. Management of adenovirus infection in patients after haematopoietic stem cell transplantation: State-of-the-art and real-life current approach: A position statement on behalf of the Infectious Diseases Working Party of the European Society of Blood and Marrow Transplantation. Rev Med Virol 2018; 28:e1980. [PMID: 29663594 DOI: 10.1002/rmv.1980] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/05/2018] [Accepted: 03/06/2018] [Indexed: 12/12/2022]
Abstract
The important insights gained over the past years in diagnosis and treatment of invasive adenoviral infections provide new paradigms for the monitoring and clinical management of these life-threatening complications. A meeting was held to discuss and subsequently disseminate the current advances in our understanding of the aetiology/pathogenesis and future treatment options facilitating effective control or prevention of adenovirus-related diseases in the allogeneic haematopoietic stem cell transplant setting. Invited experts in the field discussed recent progress with leading members of the Infectious Diseases Working Party of the European Society of Blood and Marrow Transplantation at the "State-of-the-art" Meeting in Poznan, Poland, in October 2017. In this review article, the panel of experts presents a concise summary of the current evidence based on published data from the last 15 years and on recent achievements resulting from real-life practice. The present position statement reflects an expert opinion on current approaches to clinical management of adenovirus infections in patients undergoing allogeneic haematopoietic stem cell transplant and provides graded recommendations of the panel for diagnostic approaches and preemptive therapy reflecting the present state of knowledge.
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Affiliation(s)
- Prashant Hiwarkar
- Department of Haematology and Bone Marrow Transplantation, Royal Manchester Children's Hospital, Manchester, UK
| | - Karin Kosulin
- Division of Molecular Microbiology, Children's Cancer Research Institute, Vienna, Austria
| | - Simone Cesaro
- Paediatric Hematology-Oncology, Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy
| | - Malgorzata Mikulska
- Division of Infectious Diseases, University of Genoa (DISSAL) and Ospedale Policlinico San Martino, Genoa, Italy
| | - Jan Styczynski
- Department of Paediatric Haematology and Oncology, Collegium Medicum, Nicolaus Copernicus University Torun, Bydgoszcz, Poland
| | - Robert Wynn
- Department of Haematology and Bone Marrow Transplantation, Royal Manchester Children's Hospital, Manchester, UK
| | - Thomas Lion
- Division of Molecular Microbiology, Children's Cancer Research Institute, Vienna, Austria.,Department of Pediatrics, Medical University of Vienna, Vienna, Austria
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68
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Przybylski M, Rynans S, Waszczuk-Gajda A, Bilinski J, Basak GW, Jędrzejczak WW, Wróblewska M, Młynarczyk G, Dzieciątkowski T. Sequence typing of human adenoviruses isolated from Polish patients subjected to allogeneic hematopoietic stem cell transplantation – a single center experience. Hematology 2018; 23:633-638. [DOI: 10.1080/10245332.2018.1457308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Maciej Przybylski
- Department of Medical Microbiology, Medical University of Warsaw, Warsaw, Poland
- Department of Microbiology, Central Clinical Hospital in Warsaw, Warsaw, Poland
| | - Sylwia Rynans
- Department of Medical Microbiology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Waszczuk-Gajda
- Department of Haematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Jarosław Bilinski
- Department of Haematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Grzegorz W. Basak
- Department of Haematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Wiesław W. Jędrzejczak
- Department of Haematology, Oncology and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Marta Wróblewska
- Department of Microbiology, Central Clinical Hospital in Warsaw, Warsaw, Poland
- Department of Dental Microbiology, Medical University of Warsaw, Warsaw, Poland
| | - Grażyna Młynarczyk
- Department of Medical Microbiology, Medical University of Warsaw, Warsaw, Poland
| | - Tomasz Dzieciątkowski
- Department of Medical Microbiology, Medical University of Warsaw, Warsaw, Poland
- Department of Microbiology, Central Clinical Hospital in Warsaw, Warsaw, Poland
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69
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Chehadeh W, Al-Adwani A, John SE, Al-Dhufairi S, Al-Dousari H, Alkhaledi M, Al-Nakib W. Adenovirus types associated with severe respiratory diseases: A retrospective 4-year study in Kuwait. J Med Virol 2018; 90:1033-1039. [PMID: 29446483 PMCID: PMC7167181 DOI: 10.1002/jmv.25059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 12/20/2017] [Accepted: 01/23/2018] [Indexed: 12/26/2022]
Abstract
Human adenovirus (HAdV) infection can result in a severe respiratory disease. The aim of this study was to identify HAdV types detected in patients hospitalized for severe respiratory illness. The study population consisted of 743 patients with severe respiratory disease admitted to four major hospitals in Kuwait between January 2013 and December 2016. Respiratory specimens were retrospectively screened for 20 respiratory viruses by real-time PCR. The HAdV hexon gene was amplified and directly sequenced, and HAdV types were identified by performing Bayesian phylogenetic analysis. HAdV DNA was detected in 27 (3.6%) patients, with peaks in November and March. Most patients were infants and young children suffering from pneumonia or acute bronchiolitis. The detected HAdV types were C1, C2, C5, B3, and B7. Clusters of HAdV C1, C2, and C5 were observed with high posterior probability. All patients infected with HAdV C5 and 50% of patients infected with HAdV C2 or B7 were admitted to the intensive care unit (ICU). Co-infection with other viruses was detected in 44.4% of patients. The most common co-infecting virus was rhinovirus (HRV). HAdV/HRV co-infection was detected in two children who presumably developed disseminated HAdV infection and died. This is the first report describing the circulation of HAdV types associated with severe outcomes in Kuwait. These findings highlight the need for a national surveillance system to monitor changes in predominant HAdV types and increased numbers of severe respiratory infections.
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Affiliation(s)
- Wassim Chehadeh
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
| | - Anfal Al-Adwani
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
| | - Sonia Elezebeth John
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
| | - Shaikhah Al-Dhufairi
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
| | - Hessa Al-Dousari
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
| | - Maha Alkhaledi
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
| | - Widad Al-Nakib
- Faculty of Medicine, Department of Microbiology, Kuwait University, Safat, Kuwait
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70
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Scott MK, Chommanard C, Lu X, Appelgate D, Grenz L, Schneider E, Gerber SI, Erdman DD, Thomas A. Human Adenovirus Associated with Severe Respiratory Infection, Oregon, USA, 2013-2014. Emerg Infect Dis 2018; 22:1044-51. [PMID: 27191834 PMCID: PMC4880082 DOI: 10.3201/eid2206.151898] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Several human adenoviruses (HAdVs) can cause respiratory infections, some severe. HAdV-B7, which can cause severe respiratory disease, has not been recently reported in the United States but is reemerging in Asia. During October 2013-July 2014, Oregon health authorities identified 198 persons with respiratory symptoms and an HAdV-positive respiratory tract specimen. Among 136 (69%) hospitalized persons, 31% were admitted to the intensive care unit and 18% required mechanical ventilation; 5 patients died. Molecular typing of 109 specimens showed that most (59%) were HAdV-B7, followed by HAdVs-C1, -C2, -C5 (26%); HAdVs-B3, -B21 (15%); and HAdV-E4 (1%). Molecular analysis of 7 HAdV-B7 isolates identified the virus as genome type d, a strain previously identified only among strains circulating in Asia. Patients with HAdV-B7 were significantly more likely than those without HAdV-B7 to be adults and to have longer hospital stays. HAdV-B7 might be reemerging in the United States, and clinicians should consider HAdV in persons with severe respiratory infection.
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MESH Headings
- Adenovirus Infections, Human/diagnosis
- Adenovirus Infections, Human/epidemiology
- Adenovirus Infections, Human/history
- Adenovirus Infections, Human/virology
- Adenoviruses, Human/classification
- Adenoviruses, Human/genetics
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Child
- Child, Preschool
- Female
- Genotype
- History, 21st Century
- Hospitalization
- Humans
- Infant
- Infant, Newborn
- Male
- Middle Aged
- Oregon/epidemiology
- Phylogeny
- Population Surveillance
- Respiratory Tract Infections/diagnosis
- Respiratory Tract Infections/epidemiology
- Respiratory Tract Infections/history
- Respiratory Tract Infections/virology
- Severity of Illness Index
- Symptom Assessment
- Young Adult
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71
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Kosulin K, Berkowitsch B, Matthes S, Pichler H, Lawitschka A, Pötschger U, Fritsch G, Lion T. Intestinal Adenovirus Shedding Before Allogeneic Stem Cell Transplantation Is a Risk Factor for Invasive Infection Post-transplant. EBioMedicine 2018; 28:114-119. [PMID: 29339099 PMCID: PMC5835548 DOI: 10.1016/j.ebiom.2017.12.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/27/2017] [Accepted: 12/27/2017] [Indexed: 11/26/2022] Open
Abstract
Human adenoviruses (HAdV) are a major cause of morbidity and mortality in pediatric human stem cell transplant (HSCT) recipients. Our previous studies identified the gastrointestinal tract as a site of HAdV persistence, but the role of intestinal virus shedding pre-transplant for the risk of ensuing invasive infection has not been entirely elucidated. Molecular HAdV monitoring of serial stool samples using RQ-PCR was performed in 304 children undergoing allogeneic HSCT. Analysis of stool and peripheral blood specimens was performed pre-transplant and at short intervals until day 100 post-HSCT. The virus was detected in the stool of 129 patients (42%), and 42 tested positive already before HSCT. The patients displaying HAdV shedding pre-transplant showed a significantly earlier increase of intestinal HAdV levels above the critical threshold associated with high risk of invasive infection (p<0.01). In this subset of patients, the occurrence of invasive infection characterized by viremia was significantly higher than in patients without HAdV shedding before HSCT (33% vs 7%; p<0.0001). The data demonstrate that intestinal HAdV shedding before HSCT confers a greatly increased risk for invasive infection and disseminated disease post-transplant, and highlights the need for timely HAdV monitoring and pre-emptive therapeutic considerations in HSCT recipients.
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Affiliation(s)
- Karin Kosulin
- Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria.
| | - Bettina Berkowitsch
- Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - Susanne Matthes
- St. Anna Children's Hospital, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Herbert Pichler
- St. Anna Children's Hospital, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Anita Lawitschka
- St. Anna Children's Hospital, Kinderspitalgasse 6, 1090 Vienna, Austria
| | - Ulrike Pötschger
- Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - Gerhard Fritsch
- Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - Thomas Lion
- Children's Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria; Department of Pediatrics, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
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72
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Detection and Molecular Characterization of Human Adenovirus Infections among Hospitalized Children with Acute Diarrhea in Shanghai, China, 2006-2011. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2017; 2017:9304830. [PMID: 29445406 PMCID: PMC5763120 DOI: 10.1155/2017/9304830] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/22/2017] [Accepted: 11/29/2017] [Indexed: 12/31/2022]
Abstract
Background: Human adenovirus (HAdV) is considered a significant enteropathogen associated with sporadic diarrhea in children. However, limited data are available regarding the epidemiology of HAdV in hospitalized children with viral diarrhea in Shanghai. The aim of this study was to characterize the epidemiology of HAdVs and describe their association with acute diarrhea in hospitalized children. Methods: A total of 674 fecal samples were subjected to PCR or RT-PCR to detect RVA, HuCV, HAstV, and HAdV. Results: HAdV infections were detected in 4.7% (32/674) of specimens, with detection rates of 13.4% (11/82), 4.6% (8/174), 3.2% (4/124), 4.1% (3/74), 2.0% (2/100), and 3.3% (4/120) from 2006 to 2011, respectively. Comprehensive detection of the four viruses revealed the presence of a high percentage (90.6%) of coinfections among HAdV-positive samples, where HAdV+RVA was the most prevalent coinfection. Of the 32 HAdV-positive samples, 50.0% (16/32) were classified as HAdV-41, and 18.8% (6/32) were classified as HAdV-3. Almost 94.0% of children infected with HAdV were less than 24 months of age. Conclusions: These results clearly indicated diversity across the HAdV genotypes detected in inpatient children with acute diarrhea in Shanghai and suggested that HAdVs play a role in children with acute diarrhea.
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73
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Whole genomic analysis of two potential recombinant strains within Human mastadenovirus species C previously found in Beijing, China. Sci Rep 2017; 7:15380. [PMID: 29133946 PMCID: PMC5684218 DOI: 10.1038/s41598-017-15336-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/24/2017] [Indexed: 11/16/2022] Open
Abstract
Human mastadenovirus species C (HAdV-C) are the most common etiologic agents of respiratory disease in young children and are frequently detected worldwide including China. Two recombinant HAdV-C strains (BJ04 and BJ09) were isolated from infants with acute respiratory infection (ARI) in Beijing in 2012–2013. The whole genome sequences (WGS) of BJ04 and BJ09 were generated and compared to other 35 HAdV-C WGSs publicly available. Phylogenetic analyses showed that the BJ04 strain might be the result of three homologous recombination events involving the parental strains JX173086 (HAdV-1), NC_001405 (HAdV-2) and LC068718 (HAdV-6), whereas BJ09 viral genome might be made of genetic elements from JX173083 (HAdV-1), KF268199 (HAdV-5), and KR699642 (strain CBJ113). Despite intratypic recombination, amino acid analysis showed that the gene repertoire of BJ04 and BJ09 were similar to type 2 viruses. Finally, this analysis revealed that at least three lineages of HAdV-C have been identified in China, represented by BJ04 related to NC_001405, BJ09 related to CBJ113, and KF951595 (strain DD28) related to virus isolated in Japan. This study showed that the frequent recombination played an important driving force for complexity of the HAdV-C epidemic in Beijing, thereby demonstrating the necessity for epidemiological and virological surveillance for HAdV-C in China.
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74
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Yan X, Wang L, Zhang R, Pu X, Wu S, Yu L, Meraz IM, Zhang X, Wang JF, Gibbons DL, Mehran RJ, Swisher SG, Roth JA, Fang B. Overcoming resistance to anti-PD immunotherapy in a syngeneic mouse lung cancer model using locoregional virotherapy. Oncoimmunology 2017; 7:e1376156. [PMID: 29296537 PMCID: PMC5739569 DOI: 10.1080/2162402x.2017.1376156] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/10/2017] [Accepted: 08/30/2017] [Indexed: 02/03/2023] Open
Abstract
Anti-PD-1 and anti-PD-L1 immunotherapy has provided a new therapeutic opportunity for treatment of advanced-stage non-small cell lung cancer (NSCLC). However, overall objective response rates are approximately 15%-25% in all NSCLC patients who receive anti-PD therapy. Therefore, strategies to overcome primary resistance to anti-PD immunotherapy are urgently needed. We hypothesized that the barrier to the success of anti-PD therapy in most NSCLC patients can be overcome by stimulating the lymphocyte infiltration at cancer sites through locoregional virotherapy. To this end, in this study, we determined combination effects of anti-PD immunotherapy and oncolytic adenoviral vector-mediated tumor necrosis factor-α-related apoptosis-inducing ligand (TRAIL) gene therapy (Ad/E1-TRAIL) or adenoviral-mediated TP53 (Ad/CMV-TP53) gene therapy in syngeneic mice bearing subcutaneous tumors derived from M109 lung cancer cells. Both anti-PD-1 and anti-PD-L1 antibodies failed to elicit obvious therapeutic effects in the M109 tumors. Intratumoral administration of Ad/E1-TRAIL or Ad/CMV-TP53 alone suppressed tumor growth in animals preexposed to an adenovector and bearing subcutaneous tumors derived from M109 cells. However, combining either anti-PD-1 or anti-PD-L1 antibody with these two adenoviral vectors elicited the strongest anticancer activity in mice with existing immunity to adenoviral vectors. Dramatically enhanced intratumoral immune response was detected in this group of combination therapy based on infiltrations of CD4+ and CD8+ lymphocytes and macrophages in tumors. Our results demonstrate that resistance to anti-PD-1 immunotherapy in syngeneic mouse lung cancer can be overcome by locoregional virotherapy.
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Affiliation(s)
- Xiang Yan
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA,Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Li Wang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ran Zhang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xingxiang Pu
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Shuhong Wu
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lili Yu
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ismail M. Meraz
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiaoshan Zhang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jacqueline F. Wang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Don L. Gibbons
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Reza J. Mehran
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Stephen G. Swisher
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jack A. Roth
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bingliang Fang
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA,CONTACT Bingliang Fang Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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75
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Joshi M, Tulloh R. Kawasaki disease and coronary artery aneurysms: from childhood to adulthood. Future Cardiol 2017; 13:491-501. [DOI: 10.2217/fca-2017-0039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Kawasaki disease is an acute, systemic vasculitis of childhood and confers a 25% risk of developing coronary artery aneurysms. Its etiology is unknown, but the incidence is increasing rapidly with linked gene polymorphisms having been identified. A constellation of symptoms, epidemics and seasonality all implicate an unidentified infective or environmental cause. Intravenous immunoglobulin therapy, aspirin and steroids all form the mainstay of acute treatment and reduces the incidence of coronary artery aneurysms if given before 7 days. However, in some, these lesions persist and require ongoing management during follow-up during childhood and into adult life. Evidence for further investigations in order to minimize complications is presented in order to minimize the myofibroblast proliferation and stenosis in the long term.
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Affiliation(s)
- Manjiri Joshi
- Department of Cardiology, University of Bristol & Bristol Royal Hospital for Children, Upper Maudlin Street, Bristol BS2 8BJ, UK
| | - Robert Tulloh
- Department of Cardiology, University of Bristol & Bristol Royal Hospital for Children, Upper Maudlin Street, Bristol BS2 8BJ, UK
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76
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Approach to adenovirus infections in the setting of hematopoietic cell transplantation. Curr Opin Infect Dis 2017; 30:377-387. [DOI: 10.1097/qco.0000000000000379] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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77
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Walker D, Gregory WF, Turnbull D, Rocchi M, Meredith AL, Philbey AW, Sharp CP. Novel adenoviruses detected in British mustelids, including a unique Aviadenovirus in the tissues of pine martens ( Martes martes). J Med Microbiol 2017; 66:1177-1182. [PMID: 28749327 PMCID: PMC5817191 DOI: 10.1099/jmm.0.000546] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Several adenoviruses are known to cause severe disease in veterinary species. Recent evidence suggests that canine adenovirus type 1 (CAV-1) persists in the tissues of healthy red foxes (Vulpes vulpes), which may be a source of infection for susceptible species. It was hypothesized that mustelids native to the UK, including pine martens (Martes martes) and Eurasian otters (Lutra lutra), may also be persistently infected with adenoviruses. Based on high-throughput sequencing and additional Sanger sequencing, a novel Aviadenovirus, tentatively named marten adenovirus type 1 (MAdV-1), was detected in pine marten tissues. The detection of an Aviadenovirus in mammalian tissue has not been reported previously. Two mastadenoviruses, tentatively designated marten adenovirus type 2 (MAdV-2) and lutrine adenovirus type 1 (LAdV-1), were also detected in tissues of pine martens and Eurasian otters, respectively. Apparently healthy free-ranging animals may be infected with uncharacterized adenoviruses with possible implications for translocation of wildlife.
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Affiliation(s)
- David Walker
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK
- *Correspondence: David Walker,
| | - William F. Gregory
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK
| | - Dylan Turnbull
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh EH26 0PZ, UK
| | - Mara Rocchi
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh EH26 0PZ, UK
| | - Anna L. Meredith
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK
| | - Adrian W. Philbey
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK
| | - Colin P. Sharp
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK
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78
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Assadian F, Kamel W, Laurell G, Svensson C, Punga T, Akusjärvi G. Expression profile of Epstein-Barr virus and human adenovirus small RNAs in tonsillar B and T lymphocytes. PLoS One 2017; 12:e0177275. [PMID: 28542273 PMCID: PMC5444648 DOI: 10.1371/journal.pone.0177275] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 04/25/2017] [Indexed: 12/24/2022] Open
Abstract
We have used high-throughput small RNA sequencing to characterize viral small RNA expression in purified tonsillar B and T lymphocytes isolated from patients tested positive for Epstein-Barr virus (EBV) or human adenovirus (HAdV) infections, respectively. In the small set of patients analyzed, the expression profile of EBV and HAdV miRNAs could not distinguish between patients diagnosed with tonsillar hypertrophy or chronic/recurrent tonsillitis. The EBV miR-BART expression profile among the patients diagnosed with tonsillar diseases resembles most closely the pattern seen in EBV+ tumors (Latency II/I). The miR-BARTs that appear to be absent in normal EBV infected cells are essentially all detectable in the diseased tonsillar B lymphocytes. In the EBV+ B cells we detected 44 EBV miR-BARTs derived from the proposed BART precursor hairpins whereof five are not annotated in miRBase v21. One previously undetected miRNA, BART16b-5p, originates from the miR-BART16 precursor hairpin as an alternative 5´ miR-BART16 located precisely upstream of the annotated miR-BART16-5p. Further, our analysis revealed an extensive sequence variation among the EBV miRNAs with isomiRs having a constant 5´ end but alternative 3´ ends. A range of small RNAs was also detected from the terminal stem of the EBER RNAs and the 3´ part of v-snoRNA1. During a lytic HAdV infection in established cell lines the terminal stem of the viral non-coding VA RNAs are processed to highly abundant viral miRNAs (mivaRNAs). In contrast, mivaRNA expression in HAdV positive tonsillar T lymphocytes was very low. The small RNA profile further showed that the 5´ mivaRNA from VA RNAI and the 3´ mivaRNA from VA RNAII were as predicted, whereas the 3´ mivaRNA from VA RNAI showed an aberrant processing upstream of the expected Dicer cleavage site.
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Affiliation(s)
- Farzaneh Assadian
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Wael Kamel
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Göran Laurell
- Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden
| | - Catharina Svensson
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Tanel Punga
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Göran Akusjärvi
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala, Sweden
- * E-mail:
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79
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Simultaneous Single-Cell In Situ Analysis of Human Adenovirus Type 5 DNA and mRNA Expression Patterns in Lytic and Persistent Infection. J Virol 2017; 91:JVI.00166-17. [PMID: 28298601 DOI: 10.1128/jvi.00166-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 03/06/2017] [Indexed: 12/14/2022] Open
Abstract
An efficient adenovirus infection results in high-level accumulation of viral DNA and mRNAs in the infected cell population. However, the average viral DNA and mRNA content in a heterogeneous cell population does not necessarily reflect the same abundance in individual cells. Here, we describe a novel padlock probe-based rolling-circle amplification technique that enables simultaneous detection and analysis of human adenovirus type 5 (HAdV-5) genomic DNA and virus-encoded mRNAs in individual infected cells. We demonstrate that the method is applicable for detection and quantification of HAdV-5 DNA and mRNAs in short-term infections in human epithelial cells and in long-term infections in human B lymphocytes. Single-cell evaluation of these infections revealed high heterogeneity and unique cell subpopulations defined by differential viral DNA content and mRNA expression. Further, our single-cell analysis shows that the specific expression pattern of viral E1A 13S and 12S mRNA splice variants is linked to HAdV-5 DNA content in the individual cells. Furthermore, we show that expression of a mature form of the HAdV-5 histone-like protein VII affects virus genome detection in HAdV-5-infected cells. Collectively, padlock probes combined with rolling-circle amplification should be a welcome addition to the method repertoire for the characterization of the molecular details of the HAdV life cycle in individual infected cells.IMPORTANCE Human adenoviruses (HAdVs) have been extensively used as model systems to study various aspects of eukaryotic gene expression and genome organization. The vast majority of the HAdV studies are based on standard experimental procedures carried out using heterogeneous cell populations, where data averaging often masks biological differences. As every cell is unique, characteristics and efficiency of an HAdV infection can vary from cell to cell. Therefore, the analysis of HAdV gene expression and genome organization would benefit from a method that permits analysis of individual infected cells in the heterogeneous cell population. Here, we show that the padlock probe-based rolling-circle amplification method can be used to study concurrent viral DNA accumulation and mRNA expression patterns in individual HAdV-5-infected cells. Hence, this versatile method can be applied to detect the extent of infection and virus gene expression changes in different HAdV-5 infections.
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80
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Molloy CT, Andonian JS, Seltzer HM, Procario MC, Watson ME, Weinberg JB. Contributions of CD8 T cells to the pathogenesis of mouse adenovirus type 1 respiratory infection. Virology 2017; 507:64-74. [PMID: 28410483 DOI: 10.1016/j.virol.2017.04.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/22/2017] [Accepted: 04/05/2017] [Indexed: 01/08/2023]
Abstract
CD8 T cells are key components of the immune response to viruses, but their roles in the pathogenesis of adenovirus respiratory infection have not been characterized. We used mouse adenovirus type 1 (MAV-1) to define CD8 T cell contributions to the pathogenesis of adenovirus respiratory infection. CD8 T cell deficiency in β2m-/- mice had no effect on peak viral replication in lungs, but clearance of virus was delayed in β2m-/- mice. Virus-induced weight loss and increases in bronchoalveolar lavage fluid total protein, IFN-γ, TNF-α, IL-10, CCL2, and CCL5 concentrations were less in β2m-/- mice than in controls. CD8 T cell depletion had similar effects on virus clearance, weight loss, and inflammation. Deficiency of IFN-γ or perforin had no effect on viral replication or inflammation, but perforin-deficient mice were partially protected from weight loss. CD8 T cells promote MAV-1-induced pulmonary inflammation via a mechanism that is independent of direct antiviral effects.
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Affiliation(s)
- Caitlyn T Molloy
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Harrison M Seltzer
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | - Megan C Procario
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Michael E Watson
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | - Jason B Weinberg
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA; Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA.
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81
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Martins RB, Rocha LP, Prates MM, Gagliardi TB, Biasoli B, Leite MJ, Buzatto G, Hyppolito MA, Aragon DC, Tamashiro E, Valera FCP, Arruda E, Anselmo-Lima WT. Respiratory DNA viruses are undetectable in nasopharyngeal secretions from adenotonsillectomized children. PLoS One 2017; 12:e0174188. [PMID: 28306724 PMCID: PMC5357011 DOI: 10.1371/journal.pone.0174188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Accepted: 03/03/2017] [Indexed: 01/12/2023] Open
Abstract
Respiratory viruses are frequently detected in association with chronic tonsillar hypertrophy in the absence of symptoms of acute respiratory infection (ARI). The present analysis was done in follow-up to a previous clinical study done by this same group. Nasopharyngeal washes (NPWs) were obtained from 83 of 120 individuals at variable times post adenotonsillectomy, in the absence of ARI symptoms. A look back at virus detection results in NPWs from the same 83 individuals at the time of tonsillectomy revealed that 73.5% (61/83) were positive for one or more viruses. The overall frequency of respiratory virus detection in post-tonsillectomy NPWs was 58.8%. Rhinovirus (RV) was the agent most frequently detected, in 38 of 83 subjects (45.8%), followed by enterovirus in 7 (8.4%), human metapneumovirus in 6 (7.2%), human respiratory syncytial virus in 3 (3.6%) and human coronavirus in 1 (1.2%). Remarkably, there was no detection of adenovirus (HAdV) or human bocavirus (HBoV) in asymptomatic individuals in follow-up of adenotonsillectomy. In keeping with persistence of respiratory DNA viruses in human tonsils, tonsillectomy significantly reduces asymptomatic shedding of HAdV and HBoV in NPWs.
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Affiliation(s)
- Ronaldo Bragança Martins
- Departments of Cell Biology, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
- * E-mail:
| | - Lucas Penna Rocha
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Mirela Moreira Prates
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Talita Bianca Gagliardi
- Departments of Cell Biology, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Balduino Biasoli
- Departments of Cell Biology, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Marcelo Junqueira Leite
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Guilherme Buzatto
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Miguel Angelo Hyppolito
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Davi Casale Aragon
- Department of Pediatrics, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Edwin Tamashiro
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Fabiana Cardoso Pereira Valera
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Eurico Arruda
- Departments of Cell Biology, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
| | - Wilma Terezinha Anselmo-Lima
- Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, Brazil
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82
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83
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Dolle DD, Liu Z, Cotten M, Simpson JT, Iqbal Z, Durbin R, McCarthy SA, Keane TM. Using reference-free compressed data structures to analyze sequencing reads from thousands of human genomes. Genome Res 2016; 27:300-309. [PMID: 27986821 PMCID: PMC5287235 DOI: 10.1101/gr.211748.116] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 12/14/2016] [Indexed: 01/04/2023]
Abstract
We are rapidly approaching the point where we have sequenced millions of human genomes. There is a pressing need for new data structures to store raw sequencing data and efficient algorithms for population scale analysis. Current reference-based data formats do not fully exploit the redundancy in population sequencing nor take advantage of shared genetic variation. In recent years, the Burrows–Wheeler transform (BWT) and FM-index have been widely employed as a full-text searchable index for read alignment and de novo assembly. We introduce the concept of a population BWT and use it to store and index the sequencing reads of 2705 samples from the 1000 Genomes Project. A key feature is that, as more genomes are added, identical read sequences are increasingly observed, and compression becomes more efficient. We assess the support in the 1000 Genomes read data for every base position of two human reference assembly versions, identifying that 3.2 Mbp with population support was lost in the transition from GRCh37 with 13.7 Mbp added to GRCh38. We show that the vast majority of variant alleles can be uniquely described by overlapping 31-mers and show how rapid and accurate SNP and indel genotyping can be carried out across the genomes in the population BWT. We use the population BWT to carry out nonreference queries to search for the presence of all known viral genomes and discover human T-lymphotropic virus 1 integrations in six samples in a recognized epidemiological distribution.
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Affiliation(s)
- Dirk D Dolle
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, United Kingdom
| | - Zhicheng Liu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, United Kingdom.,European Bioinformatics Institute, Hinxton, Cambridge CB10 1SD, United Kingdom
| | - Matthew Cotten
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, United Kingdom
| | - Jared T Simpson
- Ontario Institute for Cancer Research, Toronto, Ontario M5G 0A3, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario M5S 3G4, Canada
| | - Zamin Iqbal
- Wellcome Trust Centre for Human Genetics, Oxford OX3 7BN, United Kingdom
| | - Richard Durbin
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, United Kingdom
| | - Shane A McCarthy
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, United Kingdom
| | - Thomas M Keane
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, United Kingdom.,European Bioinformatics Institute, Hinxton, Cambridge CB10 1SD, United Kingdom
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84
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The ubiquity of asymptomatic respiratory viral infections in the tonsils and adenoids of children and their impact on airway obstruction. Int J Pediatr Otorhinolaryngol 2016; 90:128-132. [PMID: 27729119 PMCID: PMC7132388 DOI: 10.1016/j.ijporl.2016.09.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 09/08/2016] [Accepted: 09/09/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND Airway obstruction due to enlargement of tonsils and adenoids is a common pediatric problem resulting in sleep disordered breathing. The cause for the relatively abnormal growth of tonsils and adenoids is poorly understood. METHODS Non-acutely ill children undergoing tonsillectomy and adenoidectomy (T&A) for various reasons were enrolled prospectively in a study to determine the frequency of asymptomatic respiratory viral infections in each lymphoid tissue and to relate the number and types of virus to the degree of airway obstruction. Molecular techniques were used to detect 9 respiratory viruses while Brodsky scores and measurements of percentages airway obstruction were used to estimate the degree of airway compromise due to the tonsil and adenoid, respectively. RESULTS Viruses were detected in 70.9% of tonsils and 94.7% of adenoids, p < 0.001. Adenovirus was the most common virus detected at 71.1%. Adenoids had an average of 2.4 viruses compared to 0.92 for tonsils, p < 0.001. Higher Brodsky scores were only associated with EBV in tonsils, p = 0.03, while greater percentages of airway obstruction in the adenoids were associated with adenovirus, EBV, corona virus, parainfluenza virus and rhinovirus, p ≤ 0.005. CONCLUSIONS Asymptomatic viral infections are common and directly related to the degree of airway obstruction significantly more often in adenoids than tonsils.
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85
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Serological and molecular epidemiology of canine adenovirus type 1 in red foxes (Vulpes vulpes) in the United Kingdom. Sci Rep 2016; 6:36051. [PMID: 27796367 PMCID: PMC5086850 DOI: 10.1038/srep36051] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/11/2016] [Indexed: 11/09/2022] Open
Abstract
Canine adenovirus type 1 (CAV-1) causes infectious canine hepatitis (ICH), a frequently fatal disease which primarily affects canids. In this study, serology (ELISA) and molecular techniques (PCR/qPCR) were utilised to investigate the exposure of free-ranging red foxes (Vulpes vulpes) to CAV-1 in the United Kingdom (UK) and to examine their role as a wildlife reservoir of infection for susceptible species. The role of canine adenovirus type 2 (CAV-2), primarily a respiratory pathogen, was also explored. In foxes with no evidence of ICH on post-mortem examination, 29 of 154 (18.8%) red foxes had inapparent infections with CAV-1, as detected by a nested PCR, in a range of samples, including liver, kidney, spleen, brain, and lung. CAV-1 was detected in the urine of three red foxes with inapparent infections. It was estimated that 302 of 469 (64.4%) red foxes were seropositive for canine adenovirus (CAV) by ELISA. CAV-2 was not detected by PCR in any red foxes examined. Additional sequence data were obtained from CAV-1 positive samples, revealing regional variations in CAV-1 sequences. It is concluded that CAV-1 is endemic in free-ranging red foxes in the UK and that many foxes have inapparent infections in a range of tissues.
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86
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Rodríguez E, Ip WH, Kolbe V, Hartmann K, Pilnitz-Stolze G, Tekin N, Gómez-Medina S, Muñoz-Fontela C, Krasemann S, Dobner T. Humanized Mice Reproduce Acute and Persistent Human Adenovirus Infection. J Infect Dis 2016; 215:70-79. [PMID: 28077585 DOI: 10.1093/infdis/jiw499] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 10/13/2016] [Indexed: 11/12/2022] Open
Abstract
Severe human adenovirus (HAdV) infections are an increasing threat for immunosuppressed individuals, particularly those who have received stem cell transplants. It has been previously hypothesized that severe infections might be due to reactivation of a persistent infection, but this hypothesis has been difficult to test owing to the lack of a permissive in vivo model of HAdV infection. Here we established a humanized mouse model that reproduces features of acute and persistent HAdV infection. In this model, acute infection correlated with high mortality, weight loss, liver pathology, and expression of viral proteins in several organs. In contrast, persistent infection was asymptomatic and led to establishment of HAdV-specific adaptive immunity and expression of early viral genes exclusively in the bone marrow. These findings validate the use of humanized mice to study acute and persistent HAdV infection and strongly suggest the presence of cellular reservoirs in the bone marrow.
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Affiliation(s)
- Estefanía Rodríguez
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - Wing Hang Ip
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - Viktoria Kolbe
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - Kristin Hartmann
- Institute for Neuropathology, University Medical Center Hamburg-Eppendorf
| | - Gundula Pilnitz-Stolze
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - Nilgün Tekin
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - Sergio Gómez-Medina
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - César Muñoz-Fontela
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
| | - Susanne Krasemann
- Institute for Neuropathology, University Medical Center Hamburg-Eppendorf
| | - Thomas Dobner
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg.,German Center for Infection Research, Braunschweig, (DZIF), Partner Site Hamburg, Germany
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87
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A generalized dose-response relationship for adenovirus infection and illness by exposure pathway. Epidemiol Infect 2016; 144:3461-3473. [DOI: 10.1017/s0950268816001862] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
SUMMARYAdenoviruses are found everywhere in the environment, and cause various health problems including symptoms of enteric illness, and respiratory illness. Despite their significance to public health, few studies have addressed the health risks associated with exposure to adenovirus. Human challenge studies have been published for a few adenoviruses, which involved exposure through oral ingestion, inhalation, intranasal and intraocular droplet inoculation. Nothwithstanding the different symptoms resulting from such exposures, infection can be defined as colonization of a corresponding mucosa. A two-level dose-response model was developed to describe the distributions of infectivity and pathogenicity in various challenge studies of adenovirus, incorporating differences in inoculation route as shift in average infectivity and pathogenicity. This dose-response model can be used to make predictions for the infectivity of adenovirus, specific to any of the four studied inoculation methods. The generalized adenovirus dose-response relationship for infection and acute illness takes into account variation in infectivity and/or pathogenicity across adenovirus types, as well as uncertainty due to limited data.
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88
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Lynch JP, Kajon AE. Adenovirus: Epidemiology, Global Spread of Novel Serotypes, and Advances in Treatment and Prevention. Semin Respir Crit Care Med 2016; 37:586-602. [PMID: 27486739 PMCID: PMC7171713 DOI: 10.1055/s-0036-1584923] [Citation(s) in RCA: 321] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Adenoviruses (AdVs) are DNA viruses that typically cause mild infections involving the upper or lower respiratory tract, gastrointestinal tract, or conjunctiva. Rare manifestations of AdV infections include hemorrhagic cystitis, hepatitis, hemorrhagic colitis, pancreatitis, nephritis, or meningoencephalitis. AdV infections are more common in young children, due to lack of humoral immunity. Epidemics of AdV infection may occur in healthy children or adults in closed or crowded settings (particularly military recruits). The disease is more severe and dissemination is more likely in patients with impaired immunity (e.g., organ transplant recipients, human immunodeficiency virus infection). Fatality rates for untreated severe AdV pneumonia or disseminated disease may exceed 50%. More than 50 serotypes of AdV have been identified. Different serotypes display different tissue tropisms that correlate with clinical manifestations of infection. The predominant serotypes circulating at a given time differ among countries or regions, and change over time. Transmission of novel strains between countries or across continents and replacement of dominant viruses by new strains may occur. Treatment of AdV infections is controversial, as prospective, randomized therapeutic trials have not been conducted. Cidofovir is the drug of choice for severe AdV infections, but not all patients require treatment. Live oral vaccines are highly efficacious in reducing the risk of respiratory AdV infection and are in routine use in the military in the United States, but currently are not available to civilians.
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Affiliation(s)
- Joseph P Lynch
- Division of Pulmonary, Critical Care Medicine, Allergy, and Clinical Immunology, Department of Internal Medicine, The David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California
| | - Adriana E Kajon
- Department of Infectious Disease, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
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89
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Abstract
BACKGROUND Human adenovirus (HAdV), especially species C (HAdV-C), can be detected incidentally by polymerase chain reaction in nasopharyngeal (NP) samples, making it difficult to interpret clinical significance of a positive result. We classified patients into groups based on HAdV culture positivity from respiratory specimens and the presence of an identified co-pathogen. We hypothesized that HAdV-C would be over-represented and viral burden would be lower in patients most likely to have incidental detection (ie, with a negative viral culture and documented co-pathogen). METHODS Immunocompetent children with HAdV + nasopharyngeal specimens were classified into 4 groups: group I (HAdV culture (+) and no co-infection), group II (culture (+) and co-infection), group III (culture (-) and no co-infection) and group IV (culture (-) and co-infection). Viral burden (cycle threshold) and species were compared among groups. RESULTS Of 483 nasopharyngeal specimens, HAdV was isolated in culture in 252 (52%); co-infection was found in 265 (55%) patients. Group I (most consistent with acute disease) had significantly lower cycle thresholds (median 23.9; interquarile range 22.2-28.1) compared with group IV (most consistent with incidental detection; median 37.3; interquarile range 35.3-38.9; P < 0.0001). HAdV-C accounted for 41% samples of group I and 83% of group IV (P < 0.0001). We identified a subset of 22 patients with bacterial or fungal co-pathogens, 18 of whom had no growth on viral culture (group IV) with a median cycle threshold of 37.4 (interquarile range 33.9-39.2). CONCLUSIONS Species identification and viral burden may assist in interpretation of a positive HAdV result. Low viral burden with HAdV-C may be consistent with incidental detection.
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90
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Lu X, Erdman DD. Quantitative real-time PCR assays for detection and type-specific identification of the endemic species C human adenoviruses. J Virol Methods 2016; 237:174-178. [PMID: 27363737 PMCID: PMC7173114 DOI: 10.1016/j.jviromet.2016.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/02/2016] [Accepted: 05/02/2016] [Indexed: 11/25/2022]
Abstract
Human adenoviruses (HAdVs) are medically important respiratory pathogens. Among the 7 recognized species (A-G), species C HAdVs (serotypes 1, 2, 5 and 6) are globally endemic and infect most people early in life. Species C HAdV infections are most often subclinical or mild and can lead to persistent shedding from the gastrointestinal and upper respiratory tracts. They can also cause severe disseminated disease in newborn and immunocompromised persons, where rapid and quantitative detection and identification of the virus would help guide therapeutic intervention. To this end, we developed quantitative type-specific real-time PCR (qPCR) assays for HAdV-1, -2, -5 and -6 targeting the HAdV hexon gene. All type-specific qPCR assays reproducibly detected as few as 5 copies/reaction of quantified hexon recombinant plasmids with a linear dynamic range of 8 log units (5-5×107 copies). No non-specific amplifications were observed with concentrated nucleic acid from other HAdV types or other common respiratory pathogens. Of 199 previously typed HAdV field isolates and positive clinical specimens, all were detected and correctly identified to type by the qPCR assays; 10 samples had 2 HAdV types and 1 sample had 3 types identified which were confirmed by amplicon sequencing. The species C HAdV qPCR assays permit rapid, sensitive, specific and quantitative detection and identification of four recognized endemic HAdVs. Together with our previously developed qPCR assays for the epidemic respiratory HAdVs, these assays provide a convenient alternative to classical typing methods.
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Affiliation(s)
- Xiaoyan Lu
- Gastroenteritis and Respiratory Viruses Laboratory Branch, Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Dean D Erdman
- Gastroenteritis and Respiratory Viruses Laboratory Branch, Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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91
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Mitchell SL, Kajon AE, Kaplan SL, Kim J, Cárdenas AM. An unusual case of disseminated adenovirus infection in a cystic fibrosis, liver transplant patient. J Clin Virol 2016; 81:64-7. [PMID: 27331823 DOI: 10.1016/j.jcv.2016.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/20/2016] [Accepted: 05/26/2016] [Indexed: 11/25/2022]
Affiliation(s)
- Stephanie L Mitchell
- Department of Pathology and Laboratory Medicine, The Perelman School of Medicine, Philadelphia, PA, United States
| | - Adriana E Kajon
- Lovelace Respiratory Research Institute, Albuquerque, NM, United States
| | - Summer L Kaplan
- Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Jason Kim
- Department of Pediatrics, The Perelman School of Medicine, Philadelphia, PA, United States; Division of Infectious Diseases, The Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Ana María Cárdenas
- Department of Pathology and Laboratory Medicine, The Perelman School of Medicine, Philadelphia, PA, United States; Infectious Diseases Diagnostics Laboratory, The Children's Hospital of Philadelphia, Philadelphia, PA, United States.
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92
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Distribution and Molecular Characterization of Human Adenovirus and Epstein-Barr Virus Infections in Tonsillar Lymphocytes Isolated from Patients Diagnosed with Tonsillar Diseases. PLoS One 2016; 11:e0154814. [PMID: 27136093 PMCID: PMC4852932 DOI: 10.1371/journal.pone.0154814] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 04/19/2016] [Indexed: 11/19/2022] Open
Abstract
Surgically removed palatine tonsils provide a conveniently accessible source of T and B lymphocytes to study the interplay between foreign pathogens and the host immune system. In this study we have characterised the distribution of human adenovirus (HAdV), Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) in purified tonsillar T and B cell-enriched fractions isolated from three patient age groups diagnosed with tonsillar hypertrophy and chronic/recurrent tonsillitis. HAdV DNA was detected in 93 out of 111 patients (84%), while EBV DNA was detected in 58 patients (52%). The most abundant adenovirus type was HAdV-5 (68%). None of the patients were positive for HCMV. Furthermore, 43 patients (39%) showed a co-infection of HAdV and EBV. The majority of young patients diagnosed with tonsillar hypertrophy were positive for HAdV, whereas all adult patients diagnosed with chronic/recurrent tonsillitis were positive for either HAdV or EBV. Most of the tonsils from patients diagnosed with either tonsillar hypertrophy or chronic/recurrent tonsillitis showed a higher HAdV DNA copy number in T compared to B cell-enriched fraction. Interestingly, in the majority of the tonsils from patients with chronic/recurrent tonsillitis HAdV DNA was detected in T cells only, whereas hypertrophic tonsils demonstrated HAdV DNA in both T and B cell-enriched fractions. In contrast, the majority of EBV positive tonsils revealed a preference for EBV DNA accumulation in the B cell-enriched fraction compared to T cell fraction irrespective of the patients' age.
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93
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Ornelles DA, Gooding LR, Dickherber ML, Policard M, Garnett-Benson C. Limited but durable changes to cellular gene expression in a model of latent adenovirus infection are reflected in childhood leukemic cell lines. Virology 2016; 494:67-77. [PMID: 27085068 PMCID: PMC4946252 DOI: 10.1016/j.virol.2016.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 12/12/2022]
Abstract
Mucosal lymphocytes support latent infections of species C adenoviruses. Because infected lymphocytes resist re-infection with adenovirus, we sought to identify changes in cellular gene expression that could inhibit the infectious process. The expression of over 30,000 genes was evaluated by microarray in persistently infected B-and T-lymphocytic cells. BBS9, BNIP3, BTG3, CXADR, SLFN11 and SPARCL1 were the only genes differentially expressed between mock and infected B cells. Most of these genes are associated with oncogenesis or cancer progression. Histone deacetylase and DNA methyltransferase inhibitors released the repression of some of these genes. Cellular and viral gene expression was compared among leukemic cell lines following adenovirus infection. Childhood leukemic B-cell lines resist adenovirus infection and also show reduced expression of CXADR and SPARCL. Thus adenovirus induces limited changes to infected B-cell lines that are similar to changes observed in childhood leukemic cell lines.
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Affiliation(s)
- D A Ornelles
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - L R Gooding
- Emory University School of Medicine, Department of Microbiology and Immunology, Atlanta, GA 30322, United States
| | - M L Dickherber
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States
| | - M Policard
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States
| | - C Garnett-Benson
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States.
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94
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Performance Characteristics of FilmArray Respiratory Panel v1.7 for Detection of Adenovirus in a Large Cohort of Pediatric Nasopharyngeal Samples: One Test May Not Fit All. J Clin Microbiol 2016; 54:1479-1486. [PMID: 27008875 DOI: 10.1128/jcm.00143-16] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 03/14/2016] [Indexed: 12/27/2022] Open
Abstract
The FilmArray Respiratory Panel (RP) v1.7 assay has improved sensitivity for detection of human adenovirus (HAdV), compared to an earlier version (RP v1.6). RP v1.7 was designed for detection of species B, C, and E but may show variable detection of species A, D, and F. We sought to evaluate the clinical and analytical performance of RP v1.7 for detection of HAdV in a large pediatric cohort. Respiratory specimens obtained from a tertiary care children's hospital between February 2014 and February 2015 were tested for HAdV by RP v1.7. If the RP v1.7 results were negative for HAdV, then the specimens were reflexed to a HAdV-specific laboratory-developed PCR (LD-PCR) assay for confirmation. A subset of specimens underwent secondary confirmatory testing using another commercially available HAdV PCR assay and a molecular typing assay for species identification. Among 4,750 specimens, a total of 146 specimens (3.1%) were HAdV positive by RP v1.7. HAdV was detected by LD-PCR in an additional 220 specimens that were negative by RP v1.7. Overall, a nearly 5% increase in HAdV detection was observed when RP v1.7-negative specimens were reflexed to LD-PCR testing. RP v1.7 did not detect HAdV with either low viral burden (threshold cycle values of >30) or nonrespiratory species (species A, D, and F), as shown in both clinical and analytic data. While the level of sensitivity of RP v1.7 may be adequate for testing among otherwise healthy children, the decreased sensitivity may be problematic for immunocompromised patients, in whom low levels of HAdV in the respiratory tract may precede systemic infection and require early intervention.
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95
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Hu H, Liu F, Kim J, Ratto-Kim S. HIV Susceptibility of human antigen-specific CD4 T cells in AIDS pathogenesis and vaccine response. Expert Rev Vaccines 2016; 15:709-17. [PMID: 26814372 DOI: 10.1586/14760584.2016.1147354] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
HIV causes infection and progressive depletion of human CD4 T cells. Emerging data have shown that antigen-specific CD4 T-cell subsets manifest differential susceptibility to HIV, potentially leading to pathogen-specific immune failure and opportunistic infections. This concept was recently explored in context of vectors utilized in HIV vaccine trials, and the data suggest that adenovirus type 5(Ad5)-specific CD4 T cells elicited by Ad5-HIV vaccine may be particularly susceptible to HIV, potentially rendering Ad5 vaccine recipients susceptible to HIV acquisition. We here examined recent data regarding the HIV susceptibility of antigen-specific CD4 T cells induced during infection or HIV vaccination and discussed its potential impact on HIV acquisition risk posed by HIV vaccination.
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Affiliation(s)
- Haitao Hu
- a Department of Microbiology & Immunology and Sealy Center for Vaccine Development , University of Texas Medical Branch , Galveston , TX , USA
| | - Fengliang Liu
- a Department of Microbiology & Immunology and Sealy Center for Vaccine Development , University of Texas Medical Branch , Galveston , TX , USA
| | - Jerome Kim
- b International Vaccine Institute , Seoul , Republic of Korea
| | - Silvia Ratto-Kim
- c U.S. Military HIV Research Program, Henry M. Jackson Foundation , Walter Reed Army Institute of Research , Silver Spring , MD , USA
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96
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Zheng Y, Stamminger T, Hearing P. E2F/Rb Family Proteins Mediate Interferon Induced Repression of Adenovirus Immediate Early Transcription to Promote Persistent Viral Infection. PLoS Pathog 2016; 12:e1005415. [PMID: 26809031 PMCID: PMC4726734 DOI: 10.1371/journal.ppat.1005415] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/04/2016] [Indexed: 01/06/2023] Open
Abstract
Interferons (IFNs) are cytokines that have pleiotropic effects and play important roles in innate and adaptive immunity. IFNs have broad antiviral properties and function by different mechanisms. IFNs fail to inhibit wild-type Adenovirus (Ad) replication in established cancer cell lines. In this study, we analyzed the effects of IFNs on Ad replication in normal human cells. Our data demonstrate that both IFNα and IFNγ blocked wild-type Ad5 replication in primary human bronchial epithelial cells (NHBEC) and TERT-immortalized normal human diploid fibroblasts (HDF-TERT). IFNs inhibited the replication of divergent adenoviruses. The inhibition of Ad5 replication by IFNα and IFNγ is the consequence of repression of transcription of the E1A immediate early gene product. Both IFNα and IFNγ impede the association of the transactivator GABP with the E1A enhancer region during the early phase of infection. The repression of E1A expression by IFNs requires a conserved E2F binding site in the E1A enhancer, and IFNs increased the enrichment of the E2F-associated pocket proteins, Rb and p107, at the E1A enhancer in vivo. PD0332991 (Pabociclib), a specific CDK4/6 inhibitor, dephosphoryles pocket proteins to promote their interaction with E2Fs and inhibited wild-type Ad5 replication dependent on the conserved E2F binding site. Consistent with this result, expression of the small E1A oncoprotein, which abrogates E2F/pocket protein interactions, rescued Ad replication in the presence of IFNα or IFNγ. Finally, we established a persistent Ad infection model in vitro and demonstrated that IFNγ suppresses productive Ad replication in a manner dependent on the E2F binding site in the E1A enhancer. This is the first study that probes the molecular basis of persistent adenovirus infection and reveals a novel mechanism by which adenoviruses utilize IFN signaling to suppress lytic virus replication and to promote persistent infection. Interferons play important roles in both innate and adaptive immunity, and have broad antiviral properties. We demonstrate that type I (IFNα) and type II (IFNγ) IFNs inhibit the replication of divergent adenoviruses via an evolutionally conserved E2F binding site. IFNs augment the association of the tumor suppressors Rb and p107 with the E1A enhancer region in vivo to repress viral immediate early transcription. By comparing the properties of wild type and E2F site mutant viruses, we show that the IFN–E2F/Rb axis is critical for restriction of adenovirus replication to promote persistent viral infection. Relief of E2F/Rb repression counteracts IFN signaling whereas enforcement of E2F/Rb interaction mimics IFN signaling. These results reveal a novel mechanism by which adenoviruses utilize IFN signaling to suppress lytic virus replication and promote persistent infection.
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Affiliation(s)
- Yueting Zheng
- Department of Molecular Genetics and Microbiology, School of Medicine, Stony Brook University, Stony Brook, New York, United States of America
| | - Thomas Stamminger
- Institute for Clinical and Molecular Virology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Patrick Hearing
- Department of Molecular Genetics and Microbiology, School of Medicine, Stony Brook University, Stony Brook, New York, United States of America
- * E-mail:
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97
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Kosulin K, Geiger E, Vécsei A, Huber WD, Rauch M, Brenner E, Wrba F, Hammer K, Innerhofer A, Pötschger U, Lawitschka A, Matthes-Leodolter S, Fritsch G, Lion T. Persistence and reactivation of human adenoviruses in the gastrointestinal tract. Clin Microbiol Infect 2015; 22:381.e1-381.e8. [PMID: 26711435 DOI: 10.1016/j.cmi.2015.12.013] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/25/2015] [Accepted: 12/08/2015] [Indexed: 11/25/2022]
Abstract
Reactivation of persistent human adenoviruses (HAdVs) is associated with high morbidity and mortality in paediatric haematopoietic stem cell transplant (HSCT) recipients. Although invasive HAdV infections mainly arise from the gastrointestinal (GI) tract, the specific sites of HAdV persistence are not well characterised. We prospectively screened biopsies from 143 non-HSCT paediatric patients undergoing GI endoscopy and monitored serial stool specimens from 148 paediatric HSCT recipients for the presence of HAdV by real-time PCR. Persistence of HAdV in the GI tract was identified in 31% of children, with the highest prevalence in the terminal ileum. In situ hybridisation and immunohistochemistry identified HAdV persistence in lymphoid cells of the lamina propria, whereas biopsies from five transplant recipients revealed high numbers of replicating HAdV in intestinal epithelial cells. The prevalence of HAdV species, the frequencies of persistence in the GI tract and reactivations post transplant indicated a correlation of intestinal HAdV shedding pre-transplant with high risk of invasive infection. HAdV persistence in the GI tract is a likely origin of infectious complications in immunocompromised children. Intestinal lymphocytes represent a reservoir for HAdV persistence and reactivation, whereas the intestinal epithelium is the main site of viral proliferation preceding dissemination. The findings have important implications for assessing the risk of life-threatening invasive HAdV infections.
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Affiliation(s)
- K Kosulin
- Children's Cancer Research Institute, Vienna, Austria
| | - E Geiger
- Children's Cancer Research Institute, Vienna, Austria
| | - A Vécsei
- St Anna Children's Hospital, Vienna, Austria
| | - W-D Huber
- Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria
| | - M Rauch
- Children's Cancer Research Institute, Vienna, Austria
| | - E Brenner
- Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria
| | - F Wrba
- Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria
| | - K Hammer
- St Anna Children's Hospital, Vienna, Austria
| | | | - U Pötschger
- Children's Cancer Research Institute, Vienna, Austria
| | | | | | - G Fritsch
- Children's Cancer Research Institute, Vienna, Austria
| | - T Lion
- Children's Cancer Research Institute, Vienna, Austria; Department of Paediatrics, Medical University of Vienna, Vienna, Austria.
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98
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Assadian F, Sandström K, Laurell G, Svensson C, Akusjärvi G, Punga T. Efficient Isolation Protocol for B and T Lymphocytes from Human Palatine Tonsils. J Vis Exp 2015. [PMID: 26650582 DOI: 10.3791/53374] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Tonsils form a part of the immune system providing the first line of defense against inhaled pathogens. Usually the term "tonsils" refers to the palatine tonsils situated at the lateral walls of the oral part of the pharynx. Surgically removed palatine tonsils provide a convenient accessible source of B and T lymphocytes to study the interplay between foreign pathogens and the host immune system. This video protocol describes the dissection and processing of surgically removed human palatine tonsils, followed by the isolation of the individual B and T cell populations from the same tissue sample. We present a method, which efficiently separates tonsillar B and T lymphocytes using an antibody-dependent affinity protocol. Further, we use the method to demonstrate that human adenovirus infects specifically the tonsillar T cell fraction. The established protocol is generally applicable to efficiently and rapidly isolate tonsillar B and T cell populations to study the role of different types of pathogens in tonsillar immune responses.
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Affiliation(s)
- Farzaneh Assadian
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University
| | - Karl Sandström
- Department of Surgical Sciences, Otolaryngology and Head & Neck Surgery, Akademiska sjukhuset
| | - Göran Laurell
- Department of Surgical Sciences, Otolaryngology and Head & Neck Surgery, Akademiska sjukhuset
| | - Catharina Svensson
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University
| | - Göran Akusjärvi
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University
| | - Tanel Punga
- Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University;
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99
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Parker J, Fowler N, Walmsley ML, Schmidt T, Scharrer J, Kowaleski J, Grimes T, Hoyos S, Chen J. Analytical Sensitivity Comparison between Singleplex Real-Time PCR and a Multiplex PCR Platform for Detecting Respiratory Viruses. PLoS One 2015; 10:e0143164. [PMID: 26569120 PMCID: PMC4646456 DOI: 10.1371/journal.pone.0143164] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 11/02/2015] [Indexed: 01/12/2023] Open
Abstract
Multiplex PCR methods are attractive to clinical laboratories wanting to broaden their detection of respiratory viral pathogens in clinical specimens. However, multiplexed assays must be well optimized to retain or improve upon the analytic sensitivity of their singleplex counterparts. In this experiment, the lower limit of detection (LOD) of singleplex real-time PCR assays targeting respiratory viruses is compared to an equivalent panel on a multiplex PCR platform, the GenMark eSensor RVP. LODs were measured for each singleplex real-time PCR assay and expressed as the lowest copy number detected 95-100% of the time, depending on the assay. The GenMark eSensor RVP LODs were obtained by converting the TCID50/mL concentrations reported in the package insert to copies/μL using qPCR. Analytical sensitivity between the two methods varied from 1.2-1280.8 copies/μL (0.08-3.11 log differences) for all 12 assays compared. Assays targeting influenza A/H3N2, influenza A/H1N1pdm09, influenza B, and human parainfluenza 1 and 2 were most comparable (1.2-8.4 copies/μL, <1 log difference). Largest differences in LOD were demonstrated for assays targeting adenovirus group E, respiratory syncytial virus subtype A, and a generic assay for all influenza A viruses regardless of subtype (319.4-1280.8 copies/μL, 2.50-3.11 log difference). The multiplex PCR platform, the GenMark eSensor RVP, demonstrated improved analytical sensitivity for detecting influenza A/H3 viruses, influenza B virus, human parainfluenza virus 2, and human rhinovirus (1.6-94.8 copies/μL, 0.20-1.98 logs). Broader detection of influenza A/H3 viruses was demonstrated by the GenMark eSensor RVP. The relationship between TCID50/mL concentrations and the corresponding copy number related to various ATCC cultures is also reported.
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Affiliation(s)
- Jayme Parker
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
- Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America
| | - Nisha Fowler
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
| | - Mary Louise Walmsley
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
| | - Terri Schmidt
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
| | - Jason Scharrer
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
| | - James Kowaleski
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
| | - Teresa Grimes
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
| | - Shanann Hoyos
- Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America
| | - Jack Chen
- Department of Health and Social Services, Division of Public Health, Alaska State Public Health Virology Laboratory, Fairbanks, Alaska, United States of America
- Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America
- * E-mail:
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100
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Tórtora RP, Guimarães MAAM, de Souza LM, Santos IA, Varella RB, de Fátima Pombo March M, da Cunha AJLA, Sant' Anna CC. Adenovirus species C detection in children under four years of age with acute bronchiolitis or recurrent wheezing. J Clin Virol 2015; 73:77-80. [PMID: 26580407 DOI: 10.1016/j.jcv.2015.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 09/25/2015] [Accepted: 11/01/2015] [Indexed: 10/24/2022]
Abstract
BACKGROUND Lower respiratory tract viral infection is an important cause of morbidity and mortality in children worldwide. Among viral etiological agents the human Adenovirus (AdV) has been associated to mild or severe respiratory tract infection. OBJECTIVE To detect the presence of human Adenovirus (AdV) in children with acute bronchiolitis or recurrent wheezing, describing their clinical features and determining Adenovirus species and AdV association to Respiratory Syncytial Virus (RSV), Human Metapneumovirus (MPV) and Parainfluenza virus (PIV). STUDY DESIGN A total of 155 children bellow 48 months of age with acute bronchiolitis or recurrent wheezing were investigated for the presence of AdV, RSV, MPV and PIV in nasopharyngeal aspirate, by real-time PCR method. RESULTS AdV, predominantly of species C, has been detected as the unique pathogen (AdVi) or in association to other pathogens (AdVa.), in 39/155 samples. Crackles were more frequent in children with AdV. RSVi was detected predominantly in children with acute bronchiolitis while AdVi and AdVa were detected more frequently in patients with recurrent wheezing. CONCLUSION A small outbreak of AdV species C was observed in 2012 and 2013. AdV was detected more frequently in children with recurrent wheezing while RSVi was more frequent in infants with acute bronchiolitis.
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Affiliation(s)
- Rosângela Prendin Tórtora
- Laboratório do Nucleo de Apoio a Criança e ao Adolescente do Instituto de Puericultura e Pediatria Martagão Gesteira, UFRJ, Brazil; Laboratório de Virologia, Hospital Universitário Clementino Fraga Filho, UFRJ, Brazil
| | - Maria Angélica Arpon Marandino Guimarães
- Laboratório do Nucleo de Apoio a Criança e ao Adolescente do Instituto de Puericultura e Pediatria Martagão Gesteira, UFRJ, Brazil; Laboratório de Virologia, Hospital Universitário Clementino Fraga Filho, UFRJ, Brazil; Depto de Medicina Preventiva, Faculdade de Medicina, UFRJ, Brazil; Programa de Pós graduação em Doenças Infecciosas, Faculdade de Medicina, UFRJ, Brazil.
| | - Leandro Magalhães de Souza
- Laboratório do Nucleo de Apoio a Criança e ao Adolescente do Instituto de Puericultura e Pediatria Martagão Gesteira, UFRJ, Brazil; Laboratório de Virologia, Hospital Universitário Clementino Fraga Filho, UFRJ, Brazil
| | - Isabela Arruda Santos
- Laboratório do Nucleo de Apoio a Criança e ao Adolescente do Instituto de Puericultura e Pediatria Martagão Gesteira, UFRJ, Brazil; Depto de Pediatria, Faculdade de Medicina, UFRJ, Brazil
| | - Rafael Brandão Varella
- Programa de Pós graduação em Doenças Infecciosas, Faculdade de Medicina, UFRJ, Brazil; Depto de Microbiologia, Instituto Biomédico, UFF, Brazil
| | | | - Antonio Jose Ledo Alves da Cunha
- Laboratório do Nucleo de Apoio a Criança e ao Adolescente do Instituto de Puericultura e Pediatria Martagão Gesteira, UFRJ, Brazil; Depto de Pediatria, Faculdade de Medicina, UFRJ, Brazil
| | - Clemax Couto Sant' Anna
- Laboratório do Nucleo de Apoio a Criança e ao Adolescente do Instituto de Puericultura e Pediatria Martagão Gesteira, UFRJ, Brazil; Depto de Pediatria, Faculdade de Medicina, UFRJ, Brazil; Programa de Pós graduação em Doenças Infecciosas, Faculdade de Medicina, UFRJ, Brazil
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