1
|
Kim SJ, Moon J. Narrative Review of the Safety of Using Pigs for Xenotransplantation: Characteristics and Diagnostic Methods of Vertical Transmissible Viruses. Biomedicines 2024; 12:1181. [PMID: 38927388 PMCID: PMC11200752 DOI: 10.3390/biomedicines12061181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Amid the deepening imbalance in the supply and demand of allogeneic organs, xenotransplantation can be a practical alternative because it makes an unlimited supply of organs possible. However, to perform xenotransplantation on patients, the source animals to be used must be free from infectious agents. This requires the breeding of animals using assisted reproductive techniques, such as somatic cell nuclear transfer, embryo transfer, and cesarean section, without colostrum derived in designated pathogen-free (DPF) facilities. Most infectious agents can be removed from animals produced via these methods, but several viruses known to pass through the placenta are not easy to remove, even with these methods. Therefore, in this narrative review, we examine the characteristics of several viruses that are important to consider in xenotransplantation due to their ability to cross the placenta, and investigate how these viruses can be detected. This review is intended to help maintain DPF facilities by preventing animals infected with the virus from entering DPF facilities and to help select pigs suitable for xenotransplantation.
Collapse
Affiliation(s)
- Su-Jin Kim
- Apures Co., Ltd., 44, Hansan-gil, Cheongbuk-eup, Pyeongtaek-si 17792, Gyeonggi-do, Republic of Korea;
| | - Joonho Moon
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| |
Collapse
|
2
|
Maloney A, Joseph S. Validating the EMCV IRES Secondary Structure with Structure-Function Analysis. Biochemistry 2024; 63:107-115. [PMID: 38081770 PMCID: PMC10896073 DOI: 10.1021/acs.biochem.3c00579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The encephalomyocarditis virus internal ribosome entry site (EMCV IRES) is a structured RNA sequence found in the 5' UTR of the genomic RNA of the encephalomyocarditis virus. The EMCV IRES structure facilitates efficient translation initiation without needing a 5' m7G cap or the cap-binding protein eIF4E. The secondary structure of IRES has been the subject of several previous studies, and a number of different structural models have been proposed. Though some domains of the IRES are conserved across the different secondary structure models, domain I of the IRES varies greatly across them. A literature comparison led to the identification of three regions of interest that display structural heterogeneity within past secondary structure models. To test the accuracy of the secondary structure models in these regions, we employed mutational analysis and SHAPE probing. Mutational analysis revealed that two helical regions within the identified regions of interest are important for IRES translation. These helical regions are consistent with only one of the structure predictions in the literature and do not form in EMCV IRES structures predicted using modern secondary structure prediction methods. The importance of these regions is further supported by multiple SHAPE protections when probing was performed after in vitro translation, indicating that these regions are involved in the IRES translation complex. This work validates a published structure and demonstrates the importance of domain I during EMCV IRES translation initiation.
Collapse
Affiliation(s)
- Adam Maloney
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0314, United States
| | - Simpson Joseph
- Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093-0314, United States
| |
Collapse
|
3
|
Stockdale SR, Blanchard AM, Nayak A, Husain A, Nashine R, Dudani H, McClure CP, Tarr AW, Nag A, Meena E, Sinha V, Shrivastava SK, Hill C, Singer AC, Gomes RL, Acheampong E, Chidambaram SB, Bhatnagar T, Vetrivel U, Arora S, Kashyap RS, Monaghan TM. RNA-Seq of untreated wastewater to assess COVID-19 and emerging and endemic viruses for public health surveillance. THE LANCET REGIONAL HEALTH. SOUTHEAST ASIA 2023; 14:100205. [PMID: 37193348 PMCID: PMC10150210 DOI: 10.1016/j.lansea.2023.100205] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/10/2023] [Accepted: 04/24/2023] [Indexed: 05/18/2023]
Abstract
Background The COVID-19 pandemic showcased the power of genomic sequencing to tackle the emergence and spread of infectious diseases. However, metagenomic sequencing of total microbial RNAs in wastewater has the potential to assess multiple infectious diseases simultaneously and has yet to be explored. Methods A retrospective RNA-Seq epidemiological survey of 140 untreated composite wastewater samples was performed across urban (n = 112) and rural (n = 28) areas of Nagpur, Central India. Composite wastewater samples were prepared by pooling 422 individual grab samples collected prospectively from sewer lines of urban municipality zones and open drains of rural areas from 3rd February to 3rd April 2021, during the second COVID-19 wave in India. Samples were pre-processed and total RNA was extracted prior to genomic sequencing. Findings This is the first study that has utilised culture and/or probe-independent unbiased RNA-Seq to examine Indian wastewater samples. Our findings reveal the detection of zoonotic viruses including chikungunya, Jingmen tick and rabies viruses, which have not previously been reported in wastewater. SARS-CoV-2 was detectable in 83 locations (59%), with stark abundance variations observed between sampling sites. Hepatitis C virus was the most frequently detected infectious virus, identified in 113 locations and co-occurring 77 times with SARS-CoV-2; and both were more abundantly detected in rural areas than urban zones. Concurrent identification of segmented virus genomic fragments of influenza A virus, norovirus, and rotavirus was observed. Geographical differences were also observed for astrovirus, saffold virus, husavirus, and aichi virus that were more prevalent in urban samples, while the zoonotic viruses chikungunya and rabies, were more abundant in rural environments. Interpretation RNA-Seq can effectively detect multiple infectious diseases simultaneously, facilitating geographical and epidemiological surveys of endemic viruses that could help direct healthcare interventions against emergent and pre-existent infectious diseases as well as cost-effectively and qualitatively characterising the health status of the population over time. Funding UK Research and Innovation (UKRI) Global Challenges Research Fund (GCRF) grant number H54810, as supported by Research England.
Collapse
Affiliation(s)
| | - Adam M. Blanchard
- School of Veterinary Medicine and Science, University of Nottingham, Nottingham, United Kingdom
| | - Amit Nayak
- Research Centre, Dr G.M. Taori Central India Institute of Medical Sciences (CIIMS), Nagpur, Maharashtra, India
| | - Aliabbas Husain
- Research Centre, Dr G.M. Taori Central India Institute of Medical Sciences (CIIMS), Nagpur, Maharashtra, India
| | - Rupam Nashine
- Research Centre, Dr G.M. Taori Central India Institute of Medical Sciences (CIIMS), Nagpur, Maharashtra, India
| | - Hemanshi Dudani
- Research Centre, Dr G.M. Taori Central India Institute of Medical Sciences (CIIMS), Nagpur, Maharashtra, India
| | - C. Patrick McClure
- National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Hospitals National Health Service Trust, Nottingham, United Kingdom
- Wolfson Centre for Global Virus Research, University of Nottingham, Nottingham, United Kingdom
| | - Alexander W. Tarr
- National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Hospitals National Health Service Trust, Nottingham, United Kingdom
- Wolfson Centre for Global Virus Research, University of Nottingham, Nottingham, United Kingdom
- Queen's Medical Centre, School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Aditi Nag
- Dr. B. Lal Institute of Biotechnology, 6-E, Malviya Industrial Area, Malviya Nagar, Jaipur, India
| | - Ekta Meena
- Dr. B. Lal Institute of Biotechnology, 6-E, Malviya Industrial Area, Malviya Nagar, Jaipur, India
| | - Vikky Sinha
- Dr. B. Lal Institute of Biotechnology, 6-E, Malviya Industrial Area, Malviya Nagar, Jaipur, India
| | - Sandeep K. Shrivastava
- Centre for Innovation, Research & Development, Dr. B. Lal Clinical Laboratory Pvt. Ltd., Malviya Industrial Area, Malviya Nagar, Jaipur, India
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - Andrew C. Singer
- UK Centre for Ecology and Hydrology, Wallingford, United Kingdom
| | - Rachel L. Gomes
- Food Water Waste Research Group, Faculty of Engineering, University of Nottingham, United Kingdom
| | - Edward Acheampong
- Food Water Waste Research Group, Faculty of Engineering, University of Nottingham, United Kingdom
- Department of Statistics and Actuarial Science, University of Ghana, P.O. Box, LG 115, Legon, Ghana
| | - Saravana B. Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, 570015, KA, India
| | - Tarun Bhatnagar
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Umashankar Vetrivel
- National Institute of Traditional Medicine, Indian Council of Medical Research, Belagavi, 590010, India
- Virology and Biotechnology Division, ICMR-National Institute for Research in Tuberculosis, Chennai, 600031, India
| | - Sudipti Arora
- Dr. B. Lal Institute of Biotechnology, 6-E, Malviya Industrial Area, Malviya Nagar, Jaipur, India
| | - Rajpal Singh Kashyap
- Research Centre, Dr G.M. Taori Central India Institute of Medical Sciences (CIIMS), Nagpur, Maharashtra, India
| | - Tanya M. Monaghan
- National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Hospitals National Health Service Trust, Nottingham, United Kingdom
- Nottingham Digestive Diseases Centre, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| |
Collapse
|
4
|
Khattab SMR, Okano H, Kimura C, Fujita T, Watanabe T. Efficient integrated production of bioethanol and antiviral glycerolysis lignin from sugarcane trash. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:82. [PMID: 37189175 DOI: 10.1186/s13068-023-02333-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 04/28/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND Sugarcane trash (SCT) represents up to 18% of the aboveground biomass of sugarcane, surpassing 28 million tons globally per year. The majority of SCT is burning in the fields. Hence, efficient use of SCT is necessary to reduce carbon dioxide emissions and global warming and establish agro-industrial biorefineries. Apart from its low costs, conversion of whole biomass with high production efficiency and titer yield is mandatory for effective biorefinery systems. Therefore, in this study, we developed a simple, integrated method involving a single step of glycerolysis pretreatment to produce antiviral glycerolysis lignin (AGL). Subsequently, we co-fermented glycerol with hydrolyzed glucose and xylose to yield high titers of bioethanol. RESULTS SCT was subjected to pretreatment with microwave acidic glycerolysis with 50% aqueous (aq.) glycerol (MAG50); this pretreatment was optimized across different temperature ranges, acid concentrations, and reaction times. The optimized MAG50 (opMAG50) of SCT at 1:15 (w/v) in 1% H2SO4, 360 µM AlK(SO4)2 at 140 °C for 30 min (opMAG50) recovered the highest amount of total sugars and the lowest amount of furfural byproducts. Following opMAG50, the soluble fraction, i.e., glycerol xylose-rich solution (GXRS), was separated by filtration. A residual pulp was then washed with acetone, recovering 7.9% of the dry weight (27% of lignin) as an AGL. AGL strongly inhibited the replication of encephalomyocarditis virus (EMCV) in L929 cells without cytotoxicity. The pulp was then saccharified in yeast peptone medium by cellulase to produce a glucose concentration similar to the theoretical yield. The total xylose and arabinose recoveries were 69% and 93%, respectively. GXRS and saccharified sugars were combined and co-fermented through mixed cultures of two metabolically engineered Saccharomyces cerevisiae strains: glycerol-fermenting yeast (SK-FGG4) and xylose-fermenting yeast (SK-N2). By co-fermenting glycerol and xylose with glucose, the ethanol titer yield increased to 78.7 g/L (10% v/v ethanol), with a 96% conversion efficiency. CONCLUSION The integration of AGL production with the co-fermentation of glycerol, hydrolyzed glucose, and xylose to produce a high titer of bioethanol paves an avenue for the use of surplus glycerol from the biodiesel industry for the efficient utilization of SCT and other lignocellulosic biomasses.
Collapse
Affiliation(s)
- Sadat Mohamed Rezk Khattab
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.
- Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt.
| | - Hiroyuki Okano
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Chihiro Kimura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takashi Fujita
- Institute for Frontier Life and Medical Sciences, Kyoto University, Shogoin, Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Takashi Watanabe
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.
| |
Collapse
|
5
|
Penza V, Maroun JW, Nace RA, Schulze AJ, Russell SJ. Polycytidine tract deletion from microRNA-detargeted oncolytic Mengovirus optimizes the therapeutic index in a murine multiple myeloma model. Mol Ther Oncolytics 2023; 28:15-30. [PMID: 36619293 PMCID: PMC9800256 DOI: 10.1016/j.omto.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Mengovirus is an oncolytic picornavirus whose broad host range allows for testing in immunocompetent cancer models. Two pathogenicity-ablating approaches, polycytidine (polyC) tract truncation and microRNA (miRNA) targets insertion, eliminated the risk of encephalomyocarditis. To investigate whether a polyC truncated, miRNA-detargeted oncolytic Mengovirus might be boosted, we partially or fully rebuilt the polyC tract into the 5' noncoding region (NCR) of polyC-deleted (MC0) oncolytic constructs (NC) carrying miRNA target (miRT) insertions to eliminate cardiac/muscular (miR-133b and miR-208a) and neuronal (miR-124) tropisms. PolyC-reconstituted viruses (MC24-NC and MC37-NC) replicated in vitro and showed the expected tropism restrictions, but reduced cytotoxicity and miRT deletions were frequently observed. In the MPC-11 immune competent mouse plasmacytoma model, both intratumoral and systemic administration of MC0-NC led to faster tumor responses than MC24-NC or MC37-NC, with combined durable complete response rates of 75%, 0.5%, and 30%, respectively. Secondary viremia was higher following MC0-NC versus MC24-NC or MC37-NC therapy. Sequence analysis of virus progeny from treated mice revealed a high prevalence of miRT sequences loss among MC24- and MC37- viral genomes, but not in MC0-NC. Overall, MC0-NC was capable of stably retaining miRT sites and provided a more effective treatment and is therefore our lead Mengovirus candidate for clinical translation.
Collapse
Affiliation(s)
- Velia Penza
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN 55902, USA
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Justin W. Maroun
- Mayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, MN 55902, USA
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Rebecca A. Nace
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Autumn J. Schulze
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Stephen J. Russell
- Mayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, MN 55902, USA
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
6
|
Li M, Yan J, Zhu H, Guo C, Jiang X, Gao Y, Liu X, Jiang P, Bai J. TRIM7 inhibits encephalomyocarditis virus replication by activating interferon-β signaling pathway. Vet Microbiol 2023; 281:109729. [PMID: 37023504 DOI: 10.1016/j.vetmic.2023.109729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 03/30/2023]
Abstract
Tripartite motif-containing protein 7 (TRIM7), the member of tripartite motif (TRIM) family, plays an important role in innate immune responses against viral infection. Among them, the function of TRIM7 in Encephalomyocarditis virus (EMCV) infection has not been reported. Here, we found that TRIM7 inhibited the replication of EMCV through the type I interferon (IFN) signaling pathway. Interestingly, TRIM7 was down-regulated after EMCV infection in HEK293T cells. Further, overexpression of TRIM7 suppressed the replication of EMCV in HEK293T cells and enhanced the activity of IFN-β promoter. On the other hand, knockdown of the endogenous TRIM7 promoted EMCV infection and impaired the activity of IFN-β promoter. TRIM7 could regulate retinoic acid-inducible gene I (RIG-I)/ melanoma differentiation-associated gene 5 (MDA5)/ mitochondrial antiviral-signaling protein (MAVS) mediated IFN-β signaling pathway. Moreover, TRIM7 interacted with MAVS and they were co-located in HEK293T cells. We demonstrate that TRIM7 plays a positive role in IFN-β signaling pathway during EMCV infection and suppresses EMCV replication. Taken together, the presented results suggest that TRIM7 has a pivotal function in anti-EMCV infection, thereby providing a potential target for further development of anti-EMCV inhibitors.
Collapse
|
7
|
A recent view about encephalomyocarditis virus circulating in compartmentalised animal population in Northern Italy. Sci Rep 2023; 13:592. [PMID: 36631510 PMCID: PMC9834260 DOI: 10.1038/s41598-023-27828-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
Encephalomyocarditis virus (Picornaviridae, Cardiovirus A) is the causative agent of the homonymous disease, which may induce myocarditis, encephalitis and reproductive disorders in various mammals, especially in swine. Despite the disease occurred endemically in pig farms since 1997, the recent increase of death experimented in Northern Italy prompted to furtherly investigate the evolution of the virus and the actual spread of the infection. Italian EMC viruses, collected between 2013 and 2019, showed an overall antigenic stability. The in-house ELISA Monoclonal Antibodies based, able to reveal changes in seven different antigenic sites, showed only sporadic and occasional mutations in considered samples and the subsequent phylogenetic analysis confirmed antigenic panel's remarks. All the isolates could be classified within a unique lineage, which comprise other European strains and confirm that the viruses currently circulating in Italy developed from a unique common ancestor. Despite the demonstrated stability of virus, some putative newly emerged variants were detected through antigenic profile analysis and phylogenesis. Finally, the serosurvey proved that spread of EMCV is greater than the diffusion of fatal infections would suggest, due to subclinical circulation of EMCV. It demonstrated an increase in the proportion of seropositive farms, if compared with previous data with no remarkable differences between farms with and without clinical evidence of disease.
Collapse
|
8
|
Jantharadej K, Kongprajug A, Mhuantong W, Limpiyakorn T, Suwannasilp BB, Mongkolsuk S, Sirikanchana K. Comparative genomic analyses of pathogenic bacteria and viruses and antimicrobial resistance genes in an urban transportation canal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157652. [PMID: 35905960 DOI: 10.1016/j.scitotenv.2022.157652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Water commuting is a major urban transportation method in Thailand. However, urban boat commuters risk exposure to microbially contaminated bioaerosols or splash. We aimed to investigate the microbial community structures, identify bacterial and viral pathogens, and assess the abundance of antimicrobial resistance genes (ARGs) using next-generation sequencing (NGS) at 10 sampling sites along an 18 km transportation boat route in the Saen Saep Canal, which traverses cultural, commercial, and suburban land-based zones. The shotgun metagenomic (Illumina HiSeq) and 16S rRNA gene amplicon (V4 region) (Illumina MiSeq) sequencing platforms revealed diverse microbial clusters aligned with the zones, with explicit segregation between the cultural and suburban sites. The shotgun metagenomic sequencing further identified bacterial and viral pathogens, and ARGs. The predominant bacterial pathogens (>0.5 % relative abundance) were the Burkholderia cepacia complex, Arcobacter butzleri, Burkholderia vietnamiensis, Klebsiella pneumoniae, and the Enterobacter cloacae complex. The viruses (0.28 %-0.67 % abundance in all microbial sequences) comprised mainly vertebrate viruses and bacteriophages, with encephalomyocarditis virus (33.3 %-58.2 % abundance in viral sequences), hepatitis C virus genotype 1, human alphaherpesvirus 1, and human betaherpesvirus 6A among the human viral pathogens. The 15 ARG types contained 611 ARG subtypes, including those resistant to beta-lactam, which was the most diverse and abundant group (206 subtypes; 17.0 %-27.5 %), aminoglycoside (94 subtypes; 9.6 %-15.3 %), tetracycline (80 subtypes; 15.6 %-20.2 %), and macrolide (79 subtypes; 14.5 %-32.1 %). Interestingly, the abundance of ARGs associated with resistance to beta-lactam, trimethoprim, and sulphonamide, as well as A. butzleri and crAssphage, at the cultural sites was significantly different from the other sites (p < 0.05). We demonstrated the benefits of using NGS to deliver insights into microbial communities, and antimicrobial resistance, both of which pose a risk to human health. Using NGS may facilitate microbial risk mitigation and management for urban water commuters and proximal residents.
Collapse
Affiliation(s)
- Krittayapong Jantharadej
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Akechai Kongprajug
- Research Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok, Thailand
| | - Wuttichai Mhuantong
- National Center for Genetic Engineering and Biotechnology, Enzyme Technology Research Team, Pathum Thani, Thailand
| | - Tawan Limpiyakorn
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand; Center of Excellence on Hazardous Substance Management, Chulalongkorn University, Bangkok, Thailand; Biotechnology for Wastewater Engineering Research Group, Chulalongkorn University, Bangkok, Thailand
| | - Benjaporn Boonchayaanant Suwannasilp
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand; Center of Excellence on Hazardous Substance Management, Chulalongkorn University, Bangkok, Thailand; Biotechnology for Wastewater Engineering Research Group, Chulalongkorn University, Bangkok, Thailand
| | - Skorn Mongkolsuk
- Research Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Bangkok, Thailand
| | - Kwanrawee Sirikanchana
- Research Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Bangkok, Thailand.
| |
Collapse
|
9
|
Rapid detection of porcine encephalomyocarditis virus (EMCV) by isothermal reverse transcription recombinase polymerase amplification assays. J Virol Methods 2022; 306:114544. [PMID: 35595156 DOI: 10.1016/j.jviromet.2022.114544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/20/2022]
Abstract
In this study, we combined reverse transcription recombinase polymerase amplification assay with the fluorescence detection platform (qRT-RPA) and lateral flow biosensor (LFB RT-RPA) to allow for rapid detection of porcine encephalomyocarditis virus (EMCV). Primers and probes were designed to target the highly conserved region of 3D gene of porcine EMCV. The optimal reaction condition of qRT-RPA and LFB RT-RPA was set as 42 °C for 20 min. The assays were highly specific to EMCV and no cross-reactions were observed with seven other porcine viruses. With a 10-fold serially diluted EMCV genomic RNA as template, the limit of detection was 1.0 × 102 and 1.0 × 101 copies for qRT-RPA assay and LFB RT-RPA assay, respectively. A total of 92 samples from different sources were examined using qRT-RPA, LFB RT-RPA and qRT-PCR. We found 100% diagnostic agreement between qRT-RPA (23/92) and qRT-PCR (23/92), and 97.83% diagnostic agreement between LFB RT-RPA (25/92) and qRT-PCR (23/92). There was no significant difference in performance between the RT-RPA assays developed in this study and a previously described qRT-PCR. However, RT-RPA assays were rapid and easy to perform while LFB RT-RPA exhibited higher sensitivity for EMCV than qRT-PCR. Therefore, the developed EMCV RT-RPA assays provide an attractive and promising tool for effective detection of EMCV in low-resource settings.
Collapse
|
10
|
Potential zoonotic swine enteric viruses: The risk ignored for public health. Virus Res 2022; 315:198767. [PMID: 35421434 DOI: 10.1016/j.virusres.2022.198767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 12/28/2022]
Abstract
Swine could serve as a natural reservoir for a large variety of viruses, including potential zoonotic enteric viruses. The presence of viruses with high genetic similarity between porcine and human strains may result in the emergence of zoonotic or xenozoonotic infections. Furthermore, the globalization and intensification of swine industries exacerbate the transmission and evolution of zoonotic viruses among swine herds and individuals working in swine-related occupations. To effectively prevent the public health risks posed by zoonotic swine enteric viruses, designing, and implementing a comprehensive measure for early diagnosis, prevention, and mitigation, requires interdisciplinary a collaborative ''One Health" approach from veterinarians, environmental and public health professionals, and the swine industry. In this paper, we reviewed the current knowledge of selected potential zoonotic swine enteric viruses and explored swine intensive production and its associated public health risks.
Collapse
|
11
|
Werid GM, Ibrahim YM, Chen H, Fu L, Wang Y. Molecular Detection and Genetic Characterization of Potential Zoonotic Swine Enteric Viruses in Northern China. Pathogens 2022; 11:pathogens11040417. [PMID: 35456092 PMCID: PMC9031704 DOI: 10.3390/pathogens11040417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 12/04/2022] Open
Abstract
Despite significant economic and public health implications, swine enteric viruses that do not manifest clinical symptoms are often overlooked, and data on their epidemiology and pathogenesis are still scarce. Here, an epidemiological study was carried out by using reverse transcription-polymerase chain reaction (RT-PCR) and sequence analysis in order to better understand the distribution and genetic diversity of porcine astrovirus (PAstV), porcine encephalomyocarditis virus (EMCV), porcine kobuvirus (PKV), and porcine sapovirus (PSaV) in healthy pigs reared under specific pathogen-free (SPF) or conventional farms. PKV was the most prevalent virus (51.1%, 247/483), followed by PAstV (35.4%, 171/483), then PSaV (18.4%, 89/483), and EMCV (8.7%, 42/483). Overall, at least one viral agent was detected in 300 out of 483 samples. Out of the 300 samples, 54.0% (162/300), 13.0% (39/300), or 1.0% (3/300) were found coinfected by two, three, or four viruses, respectively. To our knowledge, this is the first report of EMCV detection from porcine fecal samples in China. Phylogenetic analysis revealed genetically diverse strains of PAstV, PKV, and PSaV circulating in conventional and SPF farms. Detection of swine enteric viruses with a high coinfection rate in healthy pigs highlights the importance of continuous viral surveillance to minimize future economic and public health risks.
Collapse
Affiliation(s)
- Gebremeskel Mamu Werid
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China; (G.M.W.); (Y.M.I.); (H.C.)
| | - Yassein M. Ibrahim
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China; (G.M.W.); (Y.M.I.); (H.C.)
| | - Hongyan Chen
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China; (G.M.W.); (Y.M.I.); (H.C.)
| | - Lizhi Fu
- Chongqing Academy of Animal Science, Chongqing 408599, China
- Correspondence: (L.F.); (Y.W.)
| | - Yue Wang
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China; (G.M.W.); (Y.M.I.); (H.C.)
- Chongqing Academy of Animal Science, Chongqing 408599, China
- College of Veterinary Medicine, Southwest University, Chongqing 400715, China
- Correspondence: (L.F.); (Y.W.)
| |
Collapse
|
12
|
Kimura C, Oh SW, Fujita T, Watanabe T. Adsorptive Inhibition of Enveloped Viruses and Nonenveloped Cardioviruses by Antiviral Lignin Produced from Sugarcane Bagasse via Microwave Glycerolysis. Biomacromolecules 2022; 23:789-797. [PMID: 35034439 DOI: 10.1021/acs.biomac.1c01209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Antiviral lignin was produced by acidic microwave glycerolysis of sugarcane bagasse. The lignin exhibited antiviral activity against nonenveloped (encephalomyocarditis virus (EMCV) and Theiler's murine encephalomyelitis virus (TMEV)) and enveloped (vesicular stomatitis virus (VSV), Sindbis virus (SINV), and Newcastle disease virus (NDV)) viruses. A series of lignins with different antiviral activities were prepared by reacting bagasse at 140, 160, 180, and 200 °C to analyze the antiviral mechanism. No difference in ζ-potential was observed among the lignin preparations; however, the lignin prepared at 200 °C (FR200) showed the strongest anti-EMCV activity, smallest hydrodynamic diameter, highest hydrophilicity, and highest affinity for EMCV. FR200 inhibited viral propagation through contact with the virion at the attachment stage to host cells, and the EMCV RNA was intact after treatment. Therefore, the lignin inhibits viral entry to host cells through interactions with the capsid surface. The nonvolatile antiviral substance is potentially useful for preventing the spread of viruses in human living and livestock breeding environments.
Collapse
Affiliation(s)
- Chihiro Kimura
- Laboratory of Biomass Conversion, Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Seong-Wook Oh
- Laboratory of Molecular Genetics, Institute for Frontier Life and Medical Sciences, Kyoto University, Shogoin, Kawahara-Cho, Sakyo-Ku, Kyoto 606-8507, Japan
| | - Takashi Fujita
- Laboratory of Molecular Genetics, Institute for Frontier Life and Medical Sciences, Kyoto University, Shogoin, Kawahara-Cho, Sakyo-Ku, Kyoto 606-8507, Japan
| | - Takashi Watanabe
- Laboratory of Biomass Conversion, Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| |
Collapse
|
13
|
Glud HA, George S, Skovgaard K, Larsen LE. Zoonotic and reverse zoonotic transmission of viruses between humans and pigs. APMIS 2021; 129:675-693. [PMID: 34586648 PMCID: PMC9297979 DOI: 10.1111/apm.13178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 08/28/2021] [Indexed: 12/30/2022]
Abstract
Humans and pigs share a close contact relationship, similar biological traits, and one of the highest estimated number of viruses compared to other mammalian species. The contribution and directionality of viral exchange between humans and pigs remain unclear for some of these viruses, but their transmission routes are important to characterize in order to prevent outbreaks of disease in both host species. This review collects and assesses the evidence to determine the likely transmission route of 27 viruses between humans and pigs.
Collapse
Affiliation(s)
- Helena Aagaard Glud
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Sophie George
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kerstin Skovgaard
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Lars Erik Larsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
14
|
Lu L, Ashworth J, Nguyen D, Li K, Smith DB, Woolhouse M. No Exchange of Picornaviruses in Vietnam between Humans and Animals in a High-Risk Cohort with Close Contact despite High Prevalence and Diversity. Viruses 2021; 13:v13091709. [PMID: 34578290 PMCID: PMC8473303 DOI: 10.3390/v13091709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 02/03/2023] Open
Abstract
Hospital-based and community-based 'high-risk cohort' studies investigating humans at risk of zoonotic infection due to occupational or residential exposure to animals were conducted in Vietnam, with diverse viruses identified from faecal samples collected from humans, domestic and wild animals. In this study, we focus on the positive-sense RNA virus family Picornaviridae, investigating the prevalence, diversity, and potential for cross-species transmission. Through metagenomic sequencing, we found picornavirus contigs in 23% of samples, belonging to 15 picornavirus genera. Prevalence was highest in bats (67%) while diversity was highest in rats (nine genera). In addition, 22% of the contigs were derived from novel viruses: Twelve phylogenetically distinct clusters were observed in rats of which seven belong to novel species or types in the genera Hunnivirus, Parechovirus, Cardiovirus, Mosavirus and Mupivirus; four distinct clusters were found in bats, belonging to one novel parechovirus species and one related to an unclassified picornavirus. There was no evidence for zoonotic transmission in our data. Our study provides an improved knowledge of the diversity and prevalence of picornaviruses, including a variety of novel picornaviruses in rats and bats. We highlight the importance of monitoring the human-animal interface for possible spill-over events.
Collapse
Affiliation(s)
- Lu Lu
- Usher Institute, University of Edinburgh, Edinburgh EH9 3FL, UK; (J.A.); (M.W.)
- Correspondence:
| | - Jordan Ashworth
- Usher Institute, University of Edinburgh, Edinburgh EH9 3FL, UK; (J.A.); (M.W.)
| | - Dung Nguyen
- Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK; (D.N.); (D.B.S.)
| | - Kejin Li
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3FL, UK;
| | - Donald B. Smith
- Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK; (D.N.); (D.B.S.)
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3FL, UK;
| | - Mark Woolhouse
- Usher Institute, University of Edinburgh, Edinburgh EH9 3FL, UK; (J.A.); (M.W.)
| | | |
Collapse
|
15
|
The Intestinal Microbiome Primes Host Innate Immunity against Enteric Virus Systemic Infection through Type I Interferon. mBio 2021; 12:mBio.00366-21. [PMID: 33975932 PMCID: PMC8262959 DOI: 10.1128/mbio.00366-21] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Intestinal microbiomes are of vital importance in antagonizing systemic viral infection. However, very little literature has shown whether commensal bacteria play a crucial role in protecting against enteric virus systemic infection from the aspect of modulating host innate immunity. In the present study, we utilized an enteric virus, encephalomyocarditis virus (EMCV), to inoculate mice treated with phosphate-buffered saline (PBS) or given an antibiotic cocktail (Abx) orally or intraperitoneally to examine the impact of microbiota depletion on virulence and viral replication in vivo. Microbiota depletion exacerbated the mortality, neuropathogenesis, viremia, and viral burden in brains following EMCV infection. Furthermore, Abx-treated mice exhibited severely diminished mononuclear phagocyte activation and impaired type I interferon (IFN) production and expression of IFN-stimulated genes (ISG) in peripheral blood mononuclear cells (PBMC), spleens, and brains. With the help of fecal bacterial 16S rRNA sequencing of PBS- and Abx-treated mice, we identified a single commensal bacterium, Blautia coccoides, that can restore mononuclear phagocyte- and IFNAR (IFN-α/β receptor)-dependent type I IFN responses to restrict systemic enteric virus infection. These findings may provide insight into the development of novel therapeutics for preventing enteric virus infection or possibly alleviating clinical diseases by activating host systemic innate immune responses via respective probiotic treatment using B. coccoides.
Collapse
|
16
|
Kishimoto M, Hang'ombe BM, Hall WW, Orba Y, Sawa H, Sasaki M. Mastomys natalensis is a possible natural rodent reservoir for encephalomyocarditis virus. J Gen Virol 2021; 102. [PMID: 33533710 DOI: 10.1099/jgv.0.001564] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Encephalomyocarditis virus (EMCV) infects a wide range of hosts and can cause encephalitis, myocarditis, reproductive disorders and diabetes mellitus in selected mammalian species. As for humans, EMCV infection seems to occur by the contact with animals and can cause febrile illnesses in some infected patients. Here we isolated EMCV strain ZM12/14 from a natal multimammate mouse (Mastomys natalensis: M. natalensis) in Zambia. Pairwise sequence similarity of the ZM12/14 P1 region consisting of antigenic capsid proteins showed the highest similarity of nucleotide (80.7 %) and amino acid (96.2%) sequence with EMCV serotype 1 (EMCV-1). Phylogenetic analysis revealed that ZM12/14 clustered into EMCV-1 at the P1 and P3 regions but segregated from known EMCV strains at the P2 region, suggesting a unique evolutionary history. Reverse transcription PCR (RT-PCR) screening and neutralizing antibody assays for EMCV were performed using collected tissues and serum from various rodents (n=179) captured in different areas in Zambia. We detected the EMCV genome in 19 M. natalensis (19/179=10.6 %) and neutralizing antibody for EMCV in 33 M. natalensis (33/179=18.4 %). However, we did not detect either the genome or neutralizing antibody in other rodent species. High neutralizing antibody litres (≧320) were observed in both RT-PCR-negative and -positive animals. Inoculation of ZM12/14 caused asymptomatic persistent infection in BALB/c mice with high antibody titres and high viral loads in some organs, consistent with the above epidemiological results. This study is the first report of the isolation of EMCV in Zambia, suggesting that M. natalensis may play a role as a natural reservoir of infection.
Collapse
Affiliation(s)
- Mai Kishimoto
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Bernard M Hang'ombe
- Africa Center of Excellence for Infectious Diseases of Humans and Animals, University of Zambia, Lusaka, Zambia
- Department of Para-clinical Studies, School of Veterinary and Medicine, University of Zambia, Lusaka, Zambia
| | - William W Hall
- Centre for Research in Infectious Diseases, School of Medicine, University College Dublin, Dublin, Ireland
- International Collaboration Unit, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
- National Virus Reference Laboratory, School of Medicine, University College Dublin, Dublin, Ireland
- Global Virus Network, Baltimore, MD, USA
| | - Yasuko Orba
- International Collaboration Unit, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Hirofumi Sawa
- Global Virus Network, Baltimore, MD, USA
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
- International Collaboration Unit, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Michihito Sasaki
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| |
Collapse
|
17
|
The Role of Protein Disorder in Nuclear Transport and in Its Subversion by Viruses. Cells 2020; 9:cells9122654. [PMID: 33321790 PMCID: PMC7764567 DOI: 10.3390/cells9122654] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 12/12/2022] Open
Abstract
The transport of host proteins into and out of the nucleus is key to host function. However, nuclear transport is restricted by nuclear pores that perforate the nuclear envelope. Protein intrinsic disorder is an inherent feature of this selective transport barrier and is also a feature of the nuclear transport receptors that facilitate the active nuclear transport of cargo, and the nuclear transport signals on the cargo itself. Furthermore, intrinsic disorder is an inherent feature of viral proteins and viral strategies to disrupt host nucleocytoplasmic transport to benefit their replication. In this review, we highlight the role that intrinsic disorder plays in the nuclear transport of host and viral proteins. We also describe viral subversion mechanisms of the host nuclear transport machinery in which intrinsic disorder is a feature. Finally, we discuss nuclear import and export as therapeutic targets for viral infectious disease.
Collapse
|
18
|
Rodrigues TCS, Nielsen O, Burek-Huntington KA, Popov VL, Raverty S, Lambourn DM, Subramaniam K, Waltzek TB. Genomic Characterization of Picornaviruses Isolated From Ribbon ( Histriophoca fasciata) and Harbor ( Phoca vitulina) Seals. Front Vet Sci 2020; 7:554716. [PMID: 33195526 PMCID: PMC7661754 DOI: 10.3389/fvets.2020.554716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022] Open
Abstract
The seal picornavirus 1, species Aquamavirus A, is currently the only recognized member of the genus Aquamavirus within the family Picornaviridae. The bear picornavirus 1 was recently proposed as the second species in the genus under the name aquamavirus B. Herein, we determined the complete genomes of two novel pinniped picornaviruses, the harbor seal picornavirus (HsPV) and the ribbon seal picornavirus (RsPV). The HsPV and the RsPV were isolated in Vero.DogSLAMtag cells from samples collected from stranded harbor (Phoca vitulina) and ribbon (Histriophoca fasciata) seals. RsPV-infected Vero.DogSLAMtag cells displaying extensive cytopathic effects were processed for transmission electron microscopy and revealed non-enveloped viral particles aggregated into paracrystalline arrays in the cytoplasm. A next-generation sequencing approach was used to recover the complete genomes of the HsPV and the RsPV (6,709 and 6,683 bp, respectively). Phylogenetic and genetic analyses supported the HsPV and the RsPV as members of the Aquamavirus genus. Based on these results, RsPV represents a novel strain of Aquamavirus A, while the HsPV is a novel strain of the proposed species aquamavirus B. These discoveries provide information on the evolutionary relationships and ultrastructure of aquamaviruses and expands the known host range of those viruses. Our results underscore the importance of the application of classical virology and pathology techniques coupled with high-throughput sequencing technologies for the discovery and characterization of pathogens in wild marine mammals.
Collapse
Affiliation(s)
- Thais C S Rodrigues
- Department of Infectious Diseases & Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Ole Nielsen
- Department of Fisheries & Oceans Canada, Winnipeg, MB, Canada
| | | | - Vsevolod L Popov
- Center for Biodefense and Emerging Infectious Diseases, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States
| | - Stephen Raverty
- Animal Health Center, Abbotsford Agriculture Centre, Provincial Government of British Columbia, Abbotsford, BC, Canada
| | - Dyanna M Lambourn
- Marine Mammal Investigations, Washington Department of Fish and Wildlife, Lakewood, WA, United States
| | - Kuttichantran Subramaniam
- Department of Infectious Diseases & Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Thomas B Waltzek
- Department of Infectious Diseases & Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| |
Collapse
|
19
|
Kimura C, Li R, Ouda R, Nishimura H, Fujita T, Watanabe T. Production of Antiviral Substance from Sugarcane Bagasse by Chemical Alteration of its Native Lignin Structure through Microwave Solvolysis. CHEMSUSCHEM 2020; 13:4519-4527. [PMID: 32291945 DOI: 10.1002/cssc.202000490] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Indexed: 05/27/2023]
Abstract
The production of bioactive agents from lignocelluloses has received limited attention because plant cell walls are essentially non-bioactive. In this study, a chemical reaction is reported, which produces a lignin-derived antiviral substance from sugarcane bagasse by microwave heating at 200 °C in aqueous glycerol containing 0.5 % H2 SO4 . The purified fraction, designated as FR200 , strongly inhibited the replication of encephalomyocarditis virus (EMCV) in L929 cells without cytotoxicity. HSQC NMR spectra demonstrated that the principal interunit linkages in the native lignin were cleaved by the reaction. Gel permeation chromatography (GPC) and pyrolysis-GCMS revealed that FR200 is composed of oligomeric lignin with a weight average molecular weight of approximately 2000. When the bagasse was reacted at lower temperatures, 140 °C and 160 °C, the native lignin substructures were partially retained and the antiviral activity significantly decreased. The results thus indicate that the antiviral activity emerged through severe alteration of the native lignin structure. Furthermore, it was revealed that the antiviral lignin inactivated the EMCV virions through direct contact, as the innate immune system of L929 was not activated by FR200 treatment, and no antiviral activity was found when L929 was pre-treated with the lignin before viral infection.
Collapse
Affiliation(s)
- Chihiro Kimura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
| | - Ruibo Li
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
| | - Ryota Ouda
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
- Institute for Frontier Life and Medical Sciences, Kyoto University, Shogoin, Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
- Current address: Graduate School of Medicine, Hokkaido University, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Hiroshi Nishimura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
| | - Takashi Fujita
- Institute for Frontier Life and Medical Sciences, Kyoto University, Shogoin, Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Takashi Watanabe
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasyo, Uji, Kyoto, 611-0011, Japan
| |
Collapse
|
20
|
A feasibility study of conducting surveillance for swine pathogens in slurry from North Carolina swine farms. Sci Rep 2020; 10:10059. [PMID: 32572119 PMCID: PMC7308328 DOI: 10.1038/s41598-020-67313-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/21/2020] [Indexed: 12/02/2022] Open
Abstract
Despite close contact between humans and animals on large scale farms, little to no infectious disease research is conducted at this interface. Our goal in this preliminary study was to explore if we could detect swine pathogens using a non-invasive, indirect approach through the study of swine slurry. From April to November 2018, 105 swine slurry samples were collected by farm personnel from waste pits at two sites on a swine farm in North Carolina. These samples were tested for DNA and RNA viruses using a real-time PCR and RT-PCR. Statistical analyses were performed to measure association between virus positive outcomes and potential predictors such as date of sample collection, weight of pigs, number of pigs in barn, temperature, and weather conditions. Overall, 86% of the samples had evidence of at least one of the targeted viruses. Ultimately, this study demonstrated the utility of conducting noninvasive surveillance for swine pathogens through the study of swine slurry. Such swine slurry surveillance may supplant the need to handle, restrain, and collect specimens directly from pigs thus providing an approach to emerging pathogen detection that appeals to the swine industry.
Collapse
|
21
|
Zheng J, Xu Y, Khan A, Wang S, Li H, Sun N. In vitro Screening of Traditional Chinese Medicines Compounds Derived with Anti-encephalomyocarditis Virus Activities. BIOTECHNOL BIOPROC E 2020. [DOI: 10.1007/s12257-019-0354-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
22
|
Li X, Ma R, Li Q, Li S, Zhang H, Xie J, Bai J, Idris A, Feng R. Transmembrane Protein 39A Promotes the Replication of Encephalomyocarditis Virus via Autophagy Pathway. Front Microbiol 2019; 10:2680. [PMID: 31849860 PMCID: PMC6901969 DOI: 10.3389/fmicb.2019.02680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 11/05/2019] [Indexed: 12/31/2022] Open
Abstract
Encephalomyocarditis virus (EMCV) causes encephalitis, myocarditis, neuropathy, reproductive disorders, and diabetes in animals. EMCV is known to induce cell autophagy; however, the molecular mechanisms underlying this remain unclear. Here, we show that the type III-transmembrane protein, transmembrane protein 39A (TMEM39A), plays a critical role in EMCV replication. We showed that EMCV GS01 strain infection upregulated TMEM39A expression. Importantly, EMCV induced autophagy in a range of host cells. The autophagy chemical inhibitor, 3-MA, inhibited EMCV replication and reduced TMEM39A expression. This is the first study demonstrating TMEM39A promoting the replication of EMCV via autophagy. Overall, we show that TMEM39A plays a positive regulatory role in EMCV proliferation and that TMEM39A expression is dependent on the autophagy pathway.
Collapse
Affiliation(s)
- Xiangrong Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Lanzhou, China
| | - Ruixian Ma
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Life Science and Engineering College, Northwest Minzu University, Lanzhou, China
| | - Qian Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Life Science and Engineering College, Northwest Minzu University, Lanzhou, China
| | - Shengjun Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Life Science and Engineering College, Northwest Minzu University, Lanzhou, China
| | - Haixia Zhang
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Lanzhou, China
| | - Jingying Xie
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Jialin Bai
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Lanzhou, China
| | - Adi Idris
- School of Medical Science, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - Ruofei Feng
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China.,Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Lanzhou, China
| |
Collapse
|
23
|
Devaux CA, Mediannikov O, Medkour H, Raoult D. Infectious Disease Risk Across the Growing Human-Non Human Primate Interface: A Review of the Evidence. Front Public Health 2019; 7:305. [PMID: 31828053 PMCID: PMC6849485 DOI: 10.3389/fpubh.2019.00305] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/07/2019] [Indexed: 12/22/2022] Open
Abstract
Most of the human pandemics reported to date can be classified as zoonoses. Among these, there is a long history of infectious diseases that have spread from non-human primates (NHP) to humans. For millennia, indigenous groups that depend on wildlife for their survival were exposed to the risk of NHP pathogens' transmission through animal hunting and wild meat consumption. Usually, exposure is of no consequence or is limited to mild infections. In rare situations, it can be more severe or even become a real public health concern. Since the emergence of acquired immune deficiency syndrome (AIDS), nobody can ignore that an emerging infectious diseases (EID) might spread from NHP into the human population. In large parts of Central Africa and Asia, wildlife remains the primary source of meat and income for millions of people living in rural areas. However, in the past few decades the risk of exposure to an NHP pathogen has taken on a new dimension. Unprecedented breaking down of natural barriers between NHP and humans has increased exposure to health risks for a much larger population, including people living in urban areas. There are several reasons for this: (i) due to road development and massive destruction of ecosystems for agricultural needs, wildlife and humans come into contact more frequently; (ii) due to ecological awareness, many long distance travelers are in search of wildlife discovery, with a particular fascination for African great apes; (iii) due to the attraction for ancient temples and mystical practices, others travelers visit Asian places colonized by NHP. In each case, there is a risk of pathogen transmission through a bite or another route of infection. Beside the individual risk of contracting a pathogen, there is also the possibility of starting a new pandemic. This article reviews the known cases of NHP pathogens' transmission to humans whether they are hunters, travelers, ecotourists, veterinarians, or scientists working on NHP. Although pathogen transmission is supposed to be a rare outcome, Rabies virus, Herpes B virus, Monkeypox virus, Ebola virus, or Yellow fever virus infections are of greater concern and require quick countermeasures from public health professionals.
Collapse
Affiliation(s)
- Christian A. Devaux
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
- CNRS, Marseille, France
| | - Oleg Mediannikov
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Hacene Medkour
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Didier Raoult
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| |
Collapse
|
24
|
de Marcken M, Dhaliwal K, Danielsen AC, Gautron AS, Dominguez-Villar M. TLR7 and TLR8 activate distinct pathways in monocytes during RNA virus infection. Sci Signal 2019; 12:12/605/eaaw1347. [DOI: 10.1126/scisignal.aaw1347] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Human blood CD14+monocytes are bone marrow–derived white blood cells that sense and respond to pathogens. Although innate immune activation by RNA viruses preferentially occurs through intracellular RIG-I–like receptors, other nucleic acid recognition receptors, such as Toll-like receptors (TLRs), play a role in finely programming the final outcome of virus infection. Here, we dissected how human monocytes respond to infection with either Coxsackie (CV), encephalomyocarditis (EMCV), influenza A (IAV), measles (MV), Sendai (SV), or vesicular stomatitis (VSV) virus. We found that in monocytes, type I interferon (IFN) and cytokine responses to infection were RNA virus specific and differentially involved TLR7 and TLR8, which sense single-stranded RNA. These TLRs activated distinct signaling cascades in monocytes, which correlated with differences in the production of cytokines involved in the polarization of CD4+T helper cells. Furthermore, we found that TLR7 signaling specifically increased expression of the transcription factor FOSL1, which reduced IL-27 and TNFα production by monocytes. TLR7, but not TLR8, activation of monocytes also stimulated Ca2+flux that prevented type I IFN responses. Our work demonstrates that in human monocytes, TLR7 and TLR8 triggered different signaling pathways that contribute to distinct phenotypes during RNA virus infection. In addition, we defined individual targets within these pathways that promoted specific T helper and antiviral responses.
Collapse
Affiliation(s)
- Marine de Marcken
- Department of Neurology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Khushwant Dhaliwal
- Department of Neurology, Yale School of Medicine, New Haven, CT 06520, USA
| | | | | | | |
Collapse
|
25
|
Abstract
EMCV is an animal pathogen that causes acute viral infections, usually myocarditis or encephalitis. It is thought to circulate mainly among rodents, from which it is occasionally transmitted to other animal species, including humans. EMCV causes fatal outbreaks of myocarditis and encephalitis in pig farms and zoos, making it an important veterinary pathogen. Although EMCV has been widely used as a model to study mechanisms of viral disease in mice, little is known about its entry mechanism. Here, we employ a haploid genetic screen for EMCV host factors and identify an essential role for ADAM9 in EMCV entry. Encephalomyocarditis virus (EMCV) is an animal pathogen and an important model organism, whose receptor requirements are poorly understood. Here, we employed a genome-wide haploid genetic screen to identify novel EMCV host factors. In addition to the previously described picornavirus receptors sialic acid and glycosaminoglycans, this screen unveiled important new host factors for EMCV. These factors include components of the fibroblast growth factor (FGF) signaling pathway, such as the potential receptors FGFR1 and ADAM9, a cell-surface metalloproteinase. By employing various knockout cells, we confirmed the importance of the identified host factors for EMCV infection. The largest reduction in infection efficiency was observed in cells lacking ADAM9. Pharmacological inhibition of the metalloproteinase activity of ADAM9 did not affect virus infection. Moreover, reconstitution of inactive ADAM9 in knockout cells restored susceptibility to EMCV, pointing to a proteinase-independent role of ADAM9 in mediating EMCV infection. Using neutralization assays with ADAM9-specific antiserum and soluble receptor proteins, we provided evidence for a role of ADAM9 in EMCV entry. Finally, binding assays showed that ADAM9 facilitates attachment of EMCV to the cell surface. Together, our findings reveal a role for ADAM9 as a novel receptor or cofactor for EMCV.
Collapse
|
26
|
A Disintegrin and Metalloproteinase 9 Domain (ADAM9) Is a Major Susceptibility Factor in the Early Stages of Encephalomyocarditis Virus Infection. mBio 2019; 10:mBio.02734-18. [PMID: 30723129 PMCID: PMC6428755 DOI: 10.1128/mbio.02734-18] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Encephalomyocarditis virus (EMCV) is a picornavirus that produces lytic infections in murine and human cells. Employing a genome-wide CRISPR-Cas9 knockout screen to find host factors required for EMCV infection, we identified a role for ADAM9 in EMCV infection. CRISPR-mediated deletion of ADAM9 in multiple human cell lines rendered the cells highly resistant to EMCV infection and cell death. Primary fibroblasts from ADAM9 KO mice were also strongly resistant to EMCV infection and cell death. In contrast, ADAM9 KO and WT cells were equally susceptible to infection with other viruses, including the picornavirus Coxsackie virus B. ADAM9 KO cells failed to produce viral progeny when incubated with EMCV. However, bypassing EMCV entry into cells through delivery of viral RNA directly to the cytosol yielded infectious EMCV virions from ADAM9 KO cells, suggesting that ADAM9 is not required for EMCV replication post-entry. These findings establish that ADAM9 is required for the early stage of EMCV infection, likely for virus entry or viral genome delivery to the cytosol.IMPORTANCE Viral myocarditis is a leading cause of death in the United States, contributing to numerous unexplained deaths in people ≤35 years old. Enteroviruses contribute to many cases of human myocarditis. Encephalomyocarditis virus (EMCV) infection causes viral myocarditis in rodent models, but its receptor requirements have not been fully identified. CRISPR-Cas9 screens can identify host dependency factors essential for EMCV infection and enhance our understanding of key events that follow viral infection, potentially leading to new strategies for preventing viral myocarditis. Using a CRISPR-Cas9 screen, we identified a disintegrin and metalloproteinase 9 domain (ADAM9) as a major factor required for the early stages of EMCV infection in both human and murine infection.
Collapse
|
27
|
Walker JW, Han BA, Ott IM, Drake JM. Transmissibility of emerging viral zoonoses. PLoS One 2018; 13:e0206926. [PMID: 30403733 PMCID: PMC6221319 DOI: 10.1371/journal.pone.0206926] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 10/17/2018] [Indexed: 01/23/2023] Open
Abstract
Effective public health research and preparedness requires an accurate understanding of which virus species possess or are at risk of developing human transmissibility. Unfortunately, our ability to identify these viruses is limited by gaps in disease surveillance and an incomplete understanding of the process of viral adaptation. By fitting boosted regression trees to data on 224 human viruses and their associated traits, we developed a model that predicts the human transmission ability of zoonotic viruses with over 84% accuracy. This model identifies several viruses that may have an undocumented capacity for transmission between humans. Viral traits that predicted human transmissibility included infection of nonhuman primates, the absence of a lipid envelope, and detection in the human nervous system and respiratory tract. This predictive model can be used to prioritize high-risk viruses for future research and surveillance, and could inform an integrated early warning system for emerging infectious diseases.
Collapse
Affiliation(s)
- Joseph W. Walker
- Odum School of Ecology, University of Georgia, Athens, Georgia, United States of America
- Center for the Ecology of Infectious Diseases, University of Georgia, Athens, Georgia, United States of America
| | - Barbara A. Han
- Cary Institute for Ecosystem Studies, Millbrook, New York, United States of America
| | - Isabel M. Ott
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States of America
| | - John M. Drake
- Odum School of Ecology, University of Georgia, Athens, Georgia, United States of America
- Center for the Ecology of Infectious Diseases, University of Georgia, Athens, Georgia, United States of America
| |
Collapse
|
28
|
Carmody M, Zimmer JT, Cushman CH, Nguyen T, Lawson TG. The ubiquitin-protein ligase E6AP/UBE3A supports early encephalomyocarditis virus replication. Virus Res 2018; 252:48-57. [PMID: 29782878 DOI: 10.1016/j.virusres.2018.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/03/2018] [Accepted: 05/15/2018] [Indexed: 12/28/2022]
Abstract
Many viruses make use of, and even direct, the ubiquitin-proteasome system to facilitate the generation of a cellular environment favorable for virus replication, while host cells use selected protein ubiquitylation pathways for antiviral defense. Relatively little information has been acquired, however, regarding the extent to which protein ubiquitylation determines the replication success of picornaviruses. Here we report that the ubiquitin-protein ligase E6AP/UBE3A, recently shown to be a participant in encephalomyocarditis virus (EMCV) 3C protease concentration regulation, also facilitates the early stages of EMCV replication, probably by a mechanism that does not involve 3C protease ubiquitylation. Using stably transfected E6AP knockdown cells, we found that reduced E6AP concentration extends the time required for infected cells to undergo the morphological changes caused by virally induced pathogenesis and to begin the production of infectious virions. This lag in virion production is accompanied by a corresponding delay in the appearance of detectable levels of viral proteins and RNA. We also found, by using both immunofluorescence microscopy and cell fractionation, that E6AP is partially redistributed from the nucleus to the cytoplasm in EMCV-infected cells, thereby increasing its availability to participate in cytoplasmic virus replication processes.
Collapse
Affiliation(s)
- Marybeth Carmody
- Department of Chemistry and Biochemistry, Bates College, Lewiston, ME, 04240, USA
| | - Joshua T Zimmer
- Department of Chemistry and Biochemistry, Bates College, Lewiston, ME, 04240, USA
| | - Camille H Cushman
- Department of Chemistry and Biochemistry, Bates College, Lewiston, ME, 04240, USA
| | - Thao Nguyen
- Department of Chemistry and Biochemistry, Bates College, Lewiston, ME, 04240, USA
| | - T Glen Lawson
- Department of Chemistry and Biochemistry, Bates College, Lewiston, ME, 04240, USA.
| |
Collapse
|
29
|
Qin S, Underwood D, Driver L, Kistler C, Diallo I, Kirkland PD. Evaluation of a duplex reverse-transcription real-time PCR assay for the detection of encephalomyocarditis virus. J Vet Diagn Invest 2018; 30:554-559. [PMID: 29860932 DOI: 10.1177/1040638718779112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We evaluated a fluorogenic probe-based assay for the detection of encephalomyocarditis virus (EMCV) by comparing a set of published primers and probe to a new set of primers and probe. The published reagents failed to amplify a range of Australian isolates and an Italian reference strain of EMCV. In contrast, an assay based on 2 new sets of primers and probes that were run in a duplex reverse-transcription real-time PCR (RT-rtPCR) worked well, with high amplification efficiency. The analytical sensitivity was ~100-fold higher than virus isolation in cell culture. The intra-assay variation was 0.21-4.90%. No cross-reactivity was observed with a range of other porcine viruses. One hundred and twenty-two clinical specimens were tested simultaneously by RT-rtPCR and virus isolation in cell culture; 72 specimens gave positive results by RT-rtPCR, and 63 of these were also positive by virus isolation. Of 245 archived cell culture isolates of EMCV that were tested in the RT-rtPCR, 242 samples were positive. The new duplex RT-rtPCR assay is a reliable tool for the detection of EMCV in clinical specimens and for use in epidemiologic investigations.
Collapse
Affiliation(s)
- Shaomin Qin
- Virology Laboratory, Elizabeth Macarthur Agriculture Institute, NSW Department of Primary Industries, Menangle, New South Wales, Australia (Qin, Kirkland).,Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, PR China (Qin).,Biosecurity Sciences Laboratory, Queensland Department of Agriculture and Fisheries, Coopers Plains, Queensland, Australia (Underwood, Driver, Kistler, Diallo)
| | - Darren Underwood
- Virology Laboratory, Elizabeth Macarthur Agriculture Institute, NSW Department of Primary Industries, Menangle, New South Wales, Australia (Qin, Kirkland).,Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, PR China (Qin).,Biosecurity Sciences Laboratory, Queensland Department of Agriculture and Fisheries, Coopers Plains, Queensland, Australia (Underwood, Driver, Kistler, Diallo)
| | - Luke Driver
- Virology Laboratory, Elizabeth Macarthur Agriculture Institute, NSW Department of Primary Industries, Menangle, New South Wales, Australia (Qin, Kirkland).,Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, PR China (Qin).,Biosecurity Sciences Laboratory, Queensland Department of Agriculture and Fisheries, Coopers Plains, Queensland, Australia (Underwood, Driver, Kistler, Diallo)
| | - Carol Kistler
- Virology Laboratory, Elizabeth Macarthur Agriculture Institute, NSW Department of Primary Industries, Menangle, New South Wales, Australia (Qin, Kirkland).,Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, PR China (Qin).,Biosecurity Sciences Laboratory, Queensland Department of Agriculture and Fisheries, Coopers Plains, Queensland, Australia (Underwood, Driver, Kistler, Diallo)
| | - Ibrahim Diallo
- Virology Laboratory, Elizabeth Macarthur Agriculture Institute, NSW Department of Primary Industries, Menangle, New South Wales, Australia (Qin, Kirkland).,Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, PR China (Qin).,Biosecurity Sciences Laboratory, Queensland Department of Agriculture and Fisheries, Coopers Plains, Queensland, Australia (Underwood, Driver, Kistler, Diallo)
| | - Peter D Kirkland
- Virology Laboratory, Elizabeth Macarthur Agriculture Institute, NSW Department of Primary Industries, Menangle, New South Wales, Australia (Qin, Kirkland).,Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, PR China (Qin).,Biosecurity Sciences Laboratory, Queensland Department of Agriculture and Fisheries, Coopers Plains, Queensland, Australia (Underwood, Driver, Kistler, Diallo)
| |
Collapse
|
30
|
Zhang H, Wang X, Li X, Ma Z, Feng R. Construction, expression, and characterization of a single-chain variable fragment (ScFv) antibody targeting to the encephalomyocarditis virus. J Med Virol 2018; 90:1184-1191. [PMID: 29476627 DOI: 10.1002/jmv.25065] [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: 07/29/2017] [Accepted: 02/13/2018] [Indexed: 11/10/2022]
Abstract
Encephalomyocarditis virus (EMCV) is as a potential zoonotic agent with a wide host range. Here, applying gene splicing by overlap extension PCR (SOE-PCR), we describe a simple method for producing single-chain variable fragment (scFv) antibody against EMCV that configurates in the orientation of VH-(GGGGS)4 -VL. DNA template was resverse transcribed by total RNA that derived from hyperimmunized antibody positive mice spleen after inoculation inactivated EMCV-PV21 as antigen. Using the degenerate primers designed for the variable regions of IgG of murine antibody, the 417 bp of gene encoding VH-linker (VHL) and 360 bp of gene encoding linker-VL (LVL) of the anti-EMCV was individually amplified from DNA template by PCR, repectively. The 762 bp gene encoding anti-EMCV scFv was constructed by SOE-PCR when the mixed VHL and LVL genes were used as the template. The amplified gene subcloned into pGEX-6P1 to yield pGEX-6P1/EMCV-scFv. Recombinant vector transformed into the Escherichia coli BL21 (DE3) and a 53 KDa GST-scFv fusion protein was obtained by SDS-PAGE electrophoresis. Animal experiment results showed that the pretective rate of mice in group A which challenged 500 μL 104 TCID50 EMCV per mouse for 7 d post-inoculation scFv 3 d (0.5 mg purified recombinant scFv per mouse) was 91.67% (11/12). The serum anti-EMCV antibody titer in group A mice was most significantly higher than that in positive control mouse (P < 0.01), coversely the serum relative mRNA copies were significantly lower than that in positive control mouse (P < 0.05). These findings indicated that recombinant anti-EMCV scFv has remarkable anti-EMCV effect in mice.
Collapse
Affiliation(s)
- Haixia Zhang
- The Key Bio-Engineering and Technology Laboratory of SEAC, Northwest Minzu University, Lanzhou, PR China.,Animal Cell Engineering and Technology Research Center of Gansu, Northwest Minzu University, Lanzhou, PR China
| | - Xinglong Wang
- School of Life Science and Bioengineering, Northwest Minzu University, Lanzhou, PR China
| | - Xiangrong Li
- The Key Bio-Engineering and Technology Laboratory of SEAC, Northwest Minzu University, Lanzhou, PR China
| | - Zhongren Ma
- Animal Cell Engineering and Technology Research Center of Gansu, Northwest Minzu University, Lanzhou, PR China
| | - Ruofei Feng
- The Key Bio-Engineering and Technology Laboratory of SEAC, Northwest Minzu University, Lanzhou, PR China.,Animal Cell Engineering and Technology Research Center of Gansu, Northwest Minzu University, Lanzhou, PR China
| |
Collapse
|
31
|
Vyshemirskii OI, Agumava AA, Kalaydzyan AA, Leontyuk AV, Kuhn JH, Shchetinin AM, Vishnevskaya TV, Eremyan AA, Alkhovsky SV. Isolation and genetic characterization of encephalomyocarditis virus 1 from a deceased captive hamadryas baboon. Virus Res 2017; 244:164-172. [PMID: 29113825 DOI: 10.1016/j.virusres.2017.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/24/2017] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
Abstract
In 2007, numerous hamadryas baboons (Papio hamadryas) died suddenly in an aviary of a primate institute in Sochi, Russia, in the absence of prior clinical signs. Necropsies were suggestive of encephalomyocarditis virus infection, but RT-PCR assays with commonly used primers were negative. Here we report the histopathological results obtained during necropsies and the isolation and genomic characterization of a divergent strain of encephalomyocarditis virus 1 (EMCV-1) from heart tissue of one of the succumbed hamadryas baboons. Phylogenetic analysis indicates that the isolated virus belongs to the newly proposed EMCV-1 lineage G, which clusters alongside lineage C ("Mengo virus"). This study is the first report describing a lineage G strain of EMCV-1 as the etiological agent of a lethal disease outbreak among captive nonhuman primates in Europe.
Collapse
Affiliation(s)
| | - Aslan A Agumava
- Scientific Research Institute of Medical Primatology, Sochi-Adler, Russia
| | - Akop A Kalaydzyan
- Scientific Research Institute of Medical Primatology, Sochi-Adler, Russia
| | - Andrey V Leontyuk
- Scientific Research Institute of Medical Primatology, Sochi-Adler, Russia
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD, USA
| | - Alexey M Shchetinin
- D. I. Ivanovsky Institute of Virology, N. F. Gamaleya Federal Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Tatyana V Vishnevskaya
- D. I. Ivanovsky Institute of Virology, N. F. Gamaleya Federal Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Aykaz A Eremyan
- D. I. Ivanovsky Institute of Virology, N. F. Gamaleya Federal Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Sergey V Alkhovsky
- D. I. Ivanovsky Institute of Virology, N. F. Gamaleya Federal Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia.
| |
Collapse
|
32
|
Liu H, Li Y, Zhang G, Sang S, Wang C, Chang H. Complete genome sequences and phylogenetic analysis of encephalomyocarditis virus strains isolated from pigs and rats origin. INFECTION GENETICS AND EVOLUTION 2017; 55:277-280. [DOI: 10.1016/j.meegid.2017.09.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/07/2017] [Accepted: 09/27/2017] [Indexed: 11/15/2022]
|
33
|
Brandão GC, Kroon EG, Souza Filho JD, Oliveira AB. Antiviral Activity of Fridericia formosa (Bureau) L. G. Lohmann (Bignoniaceae) Extracts and Constituents. J Trop Med 2017; 2017:6106959. [PMID: 28634494 PMCID: PMC5467316 DOI: 10.1155/2017/6106959] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/23/2016] [Accepted: 02/15/2017] [Indexed: 12/19/2022] Open
Abstract
A phytochemical study of Fridericia formosa (Bignoniaceae) ethanol extracts of leaves, stems, and fruits was guided by in vitro assays against vaccinia virus Western Reserve (VACV-WR), human herpes virus 1 (HSV-1), murine encephalomyocarditis virus (EMCV), and dengue virus type 2 (DENV-2) by the MTT method. All the ethanol extracts were active against DENV-2, HSV-1, and VACV-WR with best results for the fruits extract against DENV-2 (SI > 38.2). For VACV-WR and HSV-1, EC50 values > 200 μg mL-1 were determined, while no inhibition of the cytopathic effect was observed with EMCV. Five compounds were isolated and identified as the C-glucosylxanthones mangiferin (1), 2'-O-trans-caffeoylmangiferin (2), 2'-O-trans-coumaroylmangiferin (3), 2'-O-trans-cinnamoylmangiferin (5), and the flavonoid chrysin (4). The most active compound was 2'-O-trans-coumaroylmangiferin (3) with SI > 121.9 against DENV-2 and 108.7 for HSV-1. These results indicate that mangiferin cinnamoyl esters might be potential antiviral drugs.
Collapse
Affiliation(s)
- Geraldo Célio Brandão
- Departamento de Farmácia, Escola de Farmácia, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, 35.400-000 Ouro Preto, MG, Brazil
| | - Erna G. Kroon
- Departamento de Microbiologia, ICB, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31.270-901 Belo Horizonte, MG, Brazil
| | - José D. Souza Filho
- Departamento de Química, ICEX, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31.270-901 Belo Horizonte, MG, Brazil
| | - Alaíde Braga Oliveira
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31.270-901 Belo Horizonte, MG, Brazil
| |
Collapse
|
34
|
Isolation and Characterization of Encephalomyocarditis Virus from Dogs in China. Sci Rep 2017; 7:438. [PMID: 28348405 PMCID: PMC5428449 DOI: 10.1038/s41598-017-00435-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 02/27/2017] [Indexed: 11/18/2022] Open
Abstract
Encephalomyocarditis virus (EMCV) is as a potential zoonotic agent with a wide host range. Here, we describe an EMC virus isolate, identified as EMCV C15, which was successfully obtained from the serum of dogs from animal hospitals. Virus production in cell culture was confirmed by EMCV-specific real-time RT-PCR, indirect immunofluorescence assays and electron microscopy. In addition, the open reading frame sequence (ORF) of the EMCV C15 virus was determined. From sequence comparison and phylogenetic analysis among 24 reference EMCV strains, it appears that the EMCV C15 strain is closely genetically related to strain BEL2887A/91 (>99.0% nucleotide identity). In artificially challenged dogs, the heart and brain were important targets of EMCV C15. This study provides genetic and pathogenic characterization of the EMCV C15 strain isolated in Beijing and calls for sustained surveillance of EMCV infection in China to support better prevention and control of the disease.
Collapse
|
35
|
Encephalomyocarditis virus infection in Macaca sylvanus and Hystrix cristata from an Italian rescue centre for wild and exotic animals. Virol J 2016; 13:193. [PMID: 27894321 PMCID: PMC5127039 DOI: 10.1186/s12985-016-0653-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/17/2016] [Indexed: 11/29/2022] Open
Abstract
Background The Encephalomyocarditis virus (EMCV) is a small, non enveloped, positive sense single-stranded RNA virus in the genus Cardiovirus, family Picornaviridae, with two known serotypes. It is spread worldwide and infects a huge range of vertebrate hosts with zoonotic potential for humans. The pig is the mammal most likely to be impacted on with the disease, but EMCV occurrence has also been reported in non-human primates and in a variety of domestic, captive and wild animals. Until now, human cases have been very rare and the risk appears to be almost negligible in spite of human susceptibility to the infection. Case presentation Between September and November 2012 a fatal Encephalomyocarditis virus outbreak involving four Barbary macaques and 24 crested porcupines occurred at a rescue centre for wild and exotic animals in Central Italy. In this open-field zoo park located near Grosseto, Tuscany about 1000 animals belonging to different species, including various non-human primates were hosted at that time. Sudden deaths were generally observed without any evident symptoms or only with mild nonspecific clinical signs. The major gross change was characterised by grey-white necrotic foci in the myocardium and the same EMCV strain was isolated both in macaques and crested porcupines. Phylogenetic analysis has confirmed that only one EMCV strain is circulating in Italy, capable of infecting different animal species. Conclusions This report confirms the susceptibility of non-human primates to the EMCV infection and describes the disease in porcupine, a common wild Italian and African species. No human cases were observed, but given the zoonotic potential of EMCV these findings are of importance in the context of animal-human interface.
Collapse
|
36
|
Liu H, He X, Song X, Xu L, Zhang Y, Zhou G, Zhu W, Chang C, Yin Z, Shi Y, Wang C, Chang H. Isolation and molecular and phylogenetic analyses of encephalomyocarditis virus from wild boar in central China. INFECTION GENETICS AND EVOLUTION 2016; 40:67-72. [PMID: 26917364 DOI: 10.1016/j.meegid.2016.02.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/02/2016] [Accepted: 02/20/2016] [Indexed: 11/26/2022]
Abstract
Encephalomyocarditis virus (EMCV) can infect many host species and cause acute myocarditis and respiratory failure in piglets, reproductive failure in pregnant sows. In this study, an EMCV strain, designated JZ1202, was isolated from semi-captive wild boars that presented with acute myocarditis and sudden death in central China. It was identified by hemagglutination inhibition (HI) assay, reverse transcription polymerase chain reaction (RT-PCR) and genome sequencing. The subsequent results showed that the virus could produce a specific cytopathic effect on BHK cells and could cause clinical symptoms and pathological changes in mice. Complete genome sequencing and multiple sequence alignment indicated that JZ1202 strain was 81.3%-99.9% identical with other isolates worldwide. Phylogenetic analysis of the whole genome, ORF, VP3/VP1 and 3D genes using neighbor-joining method revealed that JZ1202 isolate was grouped into lineage 1. The results of this study confirmed that an EMCV strain JZ 1202 isolated from wild boar in central China was fatal to mice and provided new epidemiologic data on EMCV in China.
Collapse
Affiliation(s)
- Huimin Liu
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China.
| | - Xiuyuan He
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Xiaofeng Song
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Liang Xu
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Yun Zhang
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Guoli Zhou
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Wenjiao Zhu
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Chen Chang
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Zhian Yin
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Yuhang Shi
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Chuanqing Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Hongtao Chang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, China.
| |
Collapse
|
37
|
Kotani O, Naeem A, Suzuki T, Iwata-Yoshikawa N, Sato Y, Nakajima N, Hosomi T, Tsukagoshi H, Kozawa K, Hasegawa H, Taguchi F, Shimizu H, Nagata N. Neuropathogenicity of Two Saffold Virus Type 3 Isolates in Mouse Models. PLoS One 2016; 11:e0148184. [PMID: 26828718 PMCID: PMC4734772 DOI: 10.1371/journal.pone.0148184] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 01/14/2016] [Indexed: 12/11/2022] Open
Abstract
Objective Saffold virus (SAFV), a picornavirus, is occasionally detected in children with acute flaccid paralysis, meningitis, and cerebellitis; however, the neuropathogenicity of SAFV remains undetermined. Methods The virulence of two clinical isolates of SAFV type 3 (SAFV-3) obtained from a patient with aseptic meningitis (AM strain) and acute upper respiratory inflammation (UR strain) was analyzed in neonatal and young mice utilizing virological, pathological, and immunological methods. Results The polyproteins of the strains differed in eight amino acids. Both clinical isolates were infective, exhibited neurotropism, and were mildly neurovirulent in neonatal ddY mice. Both strains pathologically infected neural progenitor cells and glial cells, but not large neurons, with the UR strain also infecting epithelial cells. UR infection resulted in longer inflammation in the brain and spinal cord because of demyelination, while the AM strain showed more infectivity in the cerebellum in neonatal ddY mice. Additionally, young BALB/c mice seroconverted following mucosal inoculation with the UR, but not the AM, strain. Conclusions Both SAFV-3 isolates had neurotropism and mild neurovirulence but showed different cell tropisms in both neonatal and young mouse models. This animal model has the potential to recapitulate the potential neuropathogenicity of SAFV-3.
Collapse
Affiliation(s)
- Osamu Kotani
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Virology and Viral Infections, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Asif Naeem
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Yuko Sato
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Noriko Nakajima
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takushi Hosomi
- The Public Health Institute of Kochi Prefecture, Kochi, Japan
| | - Hiroyuki Tsukagoshi
- Gunma Prefectural Institute of Public Health and Environmental Sciences, Gunma, Japan
| | - Kunihisa Kozawa
- Gunma Prefectural Institute of Public Health and Environmental Sciences, Gunma, Japan
| | - Hideki Hasegawa
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Fumihiro Taguchi
- Department of Virology and Viral Infections, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hiroyuki Shimizu
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Noriyo Nagata
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
- * E-mail:
| |
Collapse
|
38
|
Saffold virus infection associated with human myocarditis. J Clin Virol 2015; 74:78-81. [PMID: 26687438 PMCID: PMC7106523 DOI: 10.1016/j.jcv.2015.11.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 11/09/2015] [Accepted: 11/25/2015] [Indexed: 12/18/2022]
Abstract
We analyzed for saffold virus in myocardial specimens from humans with myocarditis. One of 150 examined specimens was detected positive for saffold virus type 2. Saffold virus was detected in three anatomical compartments. Histological evidence of inflammation was found in two related organs. Saffold virus is a possible cause of human myocarditis.
Background Saffold virus was described in 2007 as one of the first human viruses within the genus cardioviruses. Cardioviruses may cause severe infections of the myocardium in animals, and several studies have associated saffold virus with human disease. As a result, saffold virus has been isolated from different anatomical compartments, including the myocardium, but, until now, it has not been possible to demonstrate the accompanying histopathological signs of inflammation. Objectives The aim of the study was to examine if saffold virus is capable of causing invasive infection in the human myocardium. Study design Using real-time PCR, we retrospectively examined formalin-fixed paraffin embedded cardiac tissue specimens from 150 deceased individuals diagnosed with myocarditis at autopsy. The results were compared with histological findings. Results and conclusions Saffold virus was detected in the myocardium, lung tissue and blood of one child and was accompanied by histopathological inflammation in the heart and lungs, which was supportive of a viral infection. These findings suggest that cardioviruses may be associated with myocarditis in humans.
Collapse
|
39
|
Leguia M, Loyola S, Rios J, Juarez D, Guevara C, Silva M, Prieto K, Wiley M, Kasper MR, Palacios G, Bausch DG. Full Genomic Characterization of a Saffold Virus Isolated in Peru. Pathogens 2015; 4:816-25. [PMID: 26610576 PMCID: PMC4693166 DOI: 10.3390/pathogens4040816] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 11/17/2015] [Indexed: 11/16/2022] Open
Abstract
While studying respiratory infections of unknown etiology we detected Saffold virus in an oropharyngeal swab collected from a two-year-old female suffering from diarrhea and respiratory illness. The full viral genome recovered by deep sequencing showed 98% identity to a previously described Saffold strain isolated in Japan. Phylogenetic analysis confirmed the Peruvian Saffold strain belongs to genotype 3 and is most closely related to strains that have circulated in Asia. This is the first documented case report of Saffold virus in Peru and the only complete genomic characterization of a Saffold-3 isolate from the Americas.
Collapse
Affiliation(s)
- Mariana Leguia
- Naval Medical Research Unit No. 6 (NAMRU-6), Callao 2, Peru.
| | - Steev Loyola
- Naval Medical Research Unit No. 6 (NAMRU-6), Callao 2, Peru.
| | - Jane Rios
- Naval Medical Research Unit No. 6 (NAMRU-6), Callao 2, Peru.
| | - Diana Juarez
- Naval Medical Research Unit No. 6 (NAMRU-6), Callao 2, Peru.
| | | | - Maria Silva
- Naval Medical Research Unit No. 6 (NAMRU-6), Callao 2, Peru.
| | - Karla Prieto
- Center for Genome Sciences, United States Army Medical Research Institute for Infectious Diseases (USAMRIID), Frederick, MD 21702, USA.
| | - Michael Wiley
- Center for Genome Sciences, United States Army Medical Research Institute for Infectious Diseases (USAMRIID), Frederick, MD 21702, USA.
| | | | - Gustavo Palacios
- Center for Genome Sciences, United States Army Medical Research Institute for Infectious Diseases (USAMRIID), Frederick, MD 21702, USA.
| | - Daniel G Bausch
- Naval Medical Research Unit No. 6 (NAMRU-6), Callao 2, Peru.
| |
Collapse
|
40
|
National serosurvey of encephalomyocarditis virus in healthy people and pigs in China. Arch Virol 2015; 160:2957-64. [PMID: 26347283 DOI: 10.1007/s00705-015-2591-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 08/27/2015] [Indexed: 10/23/2022]
Abstract
Encephalomyocarditis virus (EMCV) is a zoonotic pathogen that has a wide spectrum of host range. The virus has been discovered on swine farms worldwide and can cause acute fatal myocarditis in piglets and reproductive disorders in sows. Although EMCV infection has been documented in farmed pigs in China, seroprevalence in humans has not been reported. In this study, we conducted nationwide serological surveys for EMCV in humans and farmed pigs in China in 2013, by the use of a double antigen sandwich ELISA method. A total of 3305 serum samples from healthy people were obtained from seven geographical regions in China, of which 1010 samples (30.56%) were positive for EMCV antibodies. The overall seroprevalence for EMCV in the age groups of 0-20, 21-40, 41-60 and >60 years were 13.5%, 30.25%, 36.83% and 38.71% respectively, showing a tendency of increasing with age (P = 0.000). A total of 3470 serum samples from farmed pigs were collected and tested for antibodies to EMCV. A high seroprevalence of 77% was recorded, and significant regional differences were observed. It was concluded that people and pigs in China were commonly infected by EMCV. In addition, in order to characterize changes of seroprevalence during natural EMCV infection in pigs, 240 serial serum samples were collected from 30 pigs (at 0, 15, 30, 60, 75, 90, 120, and 150 days of age) in a farrow-to-finish farm in China. The data showed that there were two EMCV antibody peaks: the first peak appeared at day 30, followed by a decrease in EMCV antibody titer, and the second occurred after day 75. Thus, the most susceptible period of pigs for EMCV infection was between day 30 and day 75 of age.
Collapse
|
41
|
Isolation, molecular and phylogenetic analysis of encephalomyocarditis virus strain GS01 in China. INFECTION GENETICS AND EVOLUTION 2015; 30:19-26. [DOI: 10.1016/j.meegid.2014.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 11/19/2014] [Accepted: 12/02/2014] [Indexed: 11/17/2022]
|
42
|
Precechtelova J, Borsanyiova M, Sarmirova S, Bopegamage S. Type I diabetes mellitus: genetic factors and presumptive enteroviral etiology or protection. J Pathog 2014; 2014:738512. [PMID: 25574400 PMCID: PMC4276674 DOI: 10.1155/2014/738512] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 07/14/2014] [Accepted: 11/09/2014] [Indexed: 02/06/2023] Open
Abstract
We review type 1 diabetes and host genetic components, as well as epigenetics and viruses associated with type 1 diabetes, with added emphasis on the enteroviruses, which are often associated with triggering the disease. Genus Enterovirus is classified into twelve species of which seven (Enterovirus A, Enterovirus B, Enterovirus C, and Enterovirus D and Rhinovirus A, Rhinovirus B, and Rhinovirus C) are human pathogens. These viruses are transmitted mainly by the fecal-oral route; they may also spread via the nasopharyngeal route. Enterovirus infections are highly prevalent, but these infections are usually subclinical or cause a mild flu-like illness. However, infections caused by enteroviruses can sometimes be serious, with manifestations of meningoencephalitis, paralysis, myocarditis, and in neonates a fulminant sepsis-like syndrome. These viruses are often implicated in chronic (inflammatory) diseases as chronic myocarditis, chronic pancreatitis, and type 1 diabetes. In this review we discuss the currently suggested mechanisms involved in the viral induction of type 1 diabetes. We recapitulate current basic knowledge and definitions.
Collapse
Affiliation(s)
- Jana Precechtelova
- Enterovirus Laboratory, Faculty of Medicine, Slovak Medical University, Limbova 12, 83303 Bratislava, Slovakia
| | - Maria Borsanyiova
- Enterovirus Laboratory, Faculty of Medicine, Slovak Medical University, Limbova 12, 83303 Bratislava, Slovakia
| | - Sona Sarmirova
- Enterovirus Laboratory, Faculty of Medicine, Slovak Medical University, Limbova 12, 83303 Bratislava, Slovakia
| | - Shubhada Bopegamage
- Enterovirus Laboratory, Faculty of Medicine, Slovak Medical University, Limbova 12, 83303 Bratislava, Slovakia
| |
Collapse
|
43
|
Hou L, Ge X, Xin L, Zhou L, Guo X, Yang H. Nonstructural proteins 2C and 3D are involved in autophagy as induced by the encephalomyocarditis virus. Virol J 2014; 11:156. [PMID: 25178311 PMCID: PMC4161894 DOI: 10.1186/1743-422x-11-156] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 08/26/2014] [Indexed: 03/14/2023] Open
Abstract
Background Encephalomyocarditis virus (EMCV) can infect a variety of animal species and humans. Although the EMCV infection is known to induce autophagy to promote its replication in host cells, the viral proteins that are responsible for inducing autophagy are unknown. Methods The recombinant plasmids that were expressing the EMCV proteins were constructed to analyze the role of each protein in the induction of autophagy. Autophagy inductions by the EMCV proteins in BHK-21 cells were investigated by confocal microscopy, Western blotting and transmission electron microscopy. ER stress in BHK-21 cells was examined by detecting the marker molecules using western blotting and luciferase assays. Results This study presents the first demonstration that the nonstructural proteins 2C or 3D of EMCV were involved in inducing autophagy in BHK-21 cells that were expressing 2C or 3D, and we found that inhibiting Beclin1 expression influenced this autophagy induction process. Next, 2C and 3D were shown to be involved in inducing autophagy by activating the ER stress pathway. Finally, EMCV 2C or 3D were demonstrated to regulate the proteins associated with PERK and ATF6alpha pathway. Conclusions Our findings indicate that 2C and 3D are involved in EMCV-induced autophagy by activating ER stress molecules and regulating the proteins expression associated with UPR pathway, helping to better understand the EMCV-induced autophagy process. Electronic supplementary material The online version of this article (doi:10.1186/1743-422X-11-156) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | | | | | | | - Xin Guo
- Key Laboratory of Animal Epidemiology and Zoonosis of the Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology, China Agricultural University, No, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, People's Republic of China.
| | | |
Collapse
|
44
|
Yuan W, Zheng Y, Sun M, Zhang X, Qi Y, Sun J. Development of a TaqMan-based real-time reverse transcription polymerase chain reaction assay for the detection of encephalomyocarditis virus. J Virol Methods 2014; 207:60-5. [PMID: 24996131 DOI: 10.1016/j.jviromet.2014.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 06/01/2014] [Accepted: 06/03/2014] [Indexed: 11/19/2022]
Abstract
Encephalomyocarditis virus (EMCV) is one of the major zoonosis pathogens and can cause acute myocarditis in young pigs or reproductive failure in sows. In this study, a TaqMan-based real-time reverse transcription polymerase chain reaction (RT-PCR) assay targeting 3D gene of EMCV was developed and their sensitivities and specificities were investigated. The results indicated that the standard curve had a wide dynamic range (10(1)-10(6) copies/μL) with a linear correlation (R(2)) of 0.996 between the cycle threshold (Ct) value and template concentration. The real-time RT-PCR assay is highly sensitive and able to detect 1.4×10(2) copies/μL of EMCV RNA, as no cross-reaction was observed with other viruses. These data suggested that the real-time RT-PCR assay developed in this study will be suitable for future surveillance and specific diagnosis of EMCV-infection.
Collapse
Affiliation(s)
- Wanzhe Yuan
- College of Animal Medicine, Agricultural University of Hebei, Baoding 071001, Hebei, China; Hebei Engineering and Technology Research Center of Veterinary Biotechnology, Baoding 071001, Hebei, China; North China Research Center of Animal Epidemic Pathogen Biology, China, Agriculture Ministry, Baoding 071001, Hebei, China
| | - Yingshuai Zheng
- College of Animal Medicine, Agricultural University of Hebei, Baoding 071001, Hebei, China; Hebei Engineering and Technology Research Center of Veterinary Biotechnology, Baoding 071001, Hebei, China; North China Research Center of Animal Epidemic Pathogen Biology, China, Agriculture Ministry, Baoding 071001, Hebei, China
| | - Mingtan Sun
- College of Animal Medicine, Agricultural University of Hebei, Baoding 071001, Hebei, China; Hebei Engineering and Technology Research Center of Veterinary Biotechnology, Baoding 071001, Hebei, China; North China Research Center of Animal Epidemic Pathogen Biology, China, Agriculture Ministry, Baoding 071001, Hebei, China
| | - Xiuyuan Zhang
- College of Animal Medicine, Agricultural University of Hebei, Baoding 071001, Hebei, China; Hebei Engineering and Technology Research Center of Veterinary Biotechnology, Baoding 071001, Hebei, China; North China Research Center of Animal Epidemic Pathogen Biology, China, Agriculture Ministry, Baoding 071001, Hebei, China
| | - Yan Qi
- College of Animal Medicine, Agricultural University of Hebei, Baoding 071001, Hebei, China; Hebei Engineering and Technology Research Center of Veterinary Biotechnology, Baoding 071001, Hebei, China; North China Research Center of Animal Epidemic Pathogen Biology, China, Agriculture Ministry, Baoding 071001, Hebei, China
| | - Jiguo Sun
- College of Animal Medicine, Agricultural University of Hebei, Baoding 071001, Hebei, China; Hebei Engineering and Technology Research Center of Veterinary Biotechnology, Baoding 071001, Hebei, China; North China Research Center of Animal Epidemic Pathogen Biology, China, Agriculture Ministry, Baoding 071001, Hebei, China.
| |
Collapse
|
45
|
|
46
|
Yuan W, Song Q, Zhang X, Zhang L, Sun J. Isolation and molecular analysis of porcine encephalomyocarditis virus strain BD2 from northern China. INFECTION GENETICS AND EVOLUTION 2014; 21:303-7. [DOI: 10.1016/j.meegid.2013.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 11/07/2013] [Accepted: 11/13/2013] [Indexed: 11/28/2022]
|
47
|
Machnowska P, Ellerbroek L, Johne R. Detection and characterization of potentially zoonotic viruses in faeces of pigs at slaughter in Germany. Vet Microbiol 2013; 168:60-8. [PMID: 24247020 DOI: 10.1016/j.vetmic.2013.10.018] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 10/07/2013] [Accepted: 10/17/2013] [Indexed: 11/19/2022]
Abstract
Pigs can harbour a variety of viruses in their gastrointestinal tract. Some of them are closely related to human viruses and are therefore suspected to have a zoonotic potential. Only little is known about the presence of those viruses in pigs at slaughter. However, by contamination of meat with zoonotic viruses during the slaughtering process, food-borne transmission to humans may be possible. Here we analyzed 120 faecal samples of pigs at slaughter from 3 different geographical regions of Germany for the presence of astrovirus (AstV), encephalomyocarditis virus (EMCV), hepatitis E virus (HEV), norovirus genogroup II (NoV GII) and group A rotavirus (GARV). Using real-time RT-PCR, the most frequently detected virus was AstV, which was present in 20.8% of the samples, followed by NoV GII with a detection rate of 14.2%. EMCV, HEV and GARV were found only occasionally with detection rates of 4.2%, 2.5% and 0.8%, respectively. Analyses of partial genome sequences of the viruses indicated that the detected AstV and NoV GII mainly represented typical pig virus strains, which have not been detected in humans so far. However, the GARV and HEV strains were more closely related to human strains. The results indicate that enteric viruses, some of them with zoonotic potential, are present in pig faeces at slaughter. Application of good hygiene practice is necessary to minimize the risk of introducing these viruses into the food and to prevent virus transmission to highly exposed persons such as slaughterers and veterinarians.
Collapse
Affiliation(s)
- Patrycja Machnowska
- Federal Institute for Risk Assessment, Department of Biological Safety, 12277 Berlin, Germany
| | - Lüppo Ellerbroek
- Federal Institute for Risk Assessment, Department of Biological Safety, 12277 Berlin, Germany
| | - Reimar Johne
- Federal Institute for Risk Assessment, Department of Biological Safety, 12277 Berlin, Germany.
| |
Collapse
|
48
|
Liu H, Yan Q, Zhao B, Luo J, Wang C, Du Y, Yan J, He H. Isolation, molecular characterization, and phylogenetic analysis of encephalomyocarditis virus from South China tigers in China. INFECTION GENETICS AND EVOLUTION 2013; 19:240-3. [DOI: 10.1016/j.meegid.2013.07.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 07/18/2013] [Accepted: 07/24/2013] [Indexed: 11/28/2022]
|
49
|
Yeo DSY, Lian JE, Fernandez CJ, Lin YN, Liaw JCW, Soh ML, Lim EAS, Chan KP, Ng ML, Tan HC, Oh S, Ooi EE, Tan BH. A highly divergent Encephalomyocarditis virus isolated from nonhuman primates in Singapore. Virol J 2013; 10:248. [PMID: 23914943 PMCID: PMC3750836 DOI: 10.1186/1743-422x-10-248] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 07/24/2013] [Indexed: 02/05/2023] Open
Abstract
Background In 2001 and 2002, fatal myocarditis resulted in the sudden deaths of four, two adult and two juvenile, orang utans out of a cohort of 26 in the Singapore Zoological Gardens. Methods Of the four orang utans that underwent post-mortem examination, virus isolation was performed from the tissue homogenates of the heart and lung obtained from the two juvenile orang utans in Vero cell cultures. The tissue culture fluid was examined using electron microscopy. Reverse transcription and polymerase chain reaction with Encephalomyocarditis virus (EMCV)-specific primers targeting the gene regions of VP3/VP1 and 3D polymerase (3Dpol) confirmed the virus genus and species. The two EMCV isolates were sequenced and phylogenetic analyses of the virus genes performed. Serological testing on other animal species in the Singapore Zoological Gardens was also conducted. Results Electron microscopy of the two EMCV isolates, designated Sing-M100-02 and Sing-M105-02, revealed spherical viral particles of about 20 to 30 nm, consistent with the size and morphology of members belonging to the family Picornaviridae. In addition, infected-Vero cells showed positive immunoflorescence staining with antiserum to EMCV. Sequencing of the viral genome showed that the two EMCV isolates were 99.9% identical at the nucleotide level, indicating a similar source of origin. When compared with existing EMCV sequences in the VP1 and 3Dpol gene regions, the nucleotide divergence were at a maximum of 38.8% and 23.6% respectively, while the amino acid divergence were at a maximum of 33.9% and 11.3% respectively. Phylogenetic analyses of VP1 and 3Dpol genes further grouped the Sing-M100-02 and Sing-M105-02 isolates to themselves, away from existing EMCV lineages. This strongly suggested that Sing-M100-02 and Sing-M105-02 isolates are highly divergent variants of EMCV. Apart from the two deceased orang utans, a serological survey conducted among other zoo animals showed that a number of other animal species had neutralizing antibodies to Sing-M105-02 isolate, indicating that the EMCV variant has a relatively wide host range. Conclusions The etiological agent responsible for the fatal myocarditis cases among two of the four orang utans in the Singapore Zoological Gardens was a highly divergent variant of EMCV. This is the first report of an EMCV infection in Singapore and South East Asia.
Collapse
|
50
|
Nix WA, Khetsuriani N, Peñaranda S, Maher K, Venczel L, Cselkó Z, Freire MC, Cisterna D, Lema CL, Rosales P, Rodriguez JR, Rodriguez W, Halkyer P, Ronveaux O, Pallansch MA, Oberste MS. Diversity of picornaviruses in rural Bolivia. J Gen Virol 2013; 94:2017-2028. [PMID: 23804569 DOI: 10.1099/vir.0.053827-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The family Picornaviridae is a large and diverse group of viruses that infect humans and animals. Picornaviruses are among the most common infections of humans and cause a wide spectrum of acute human disease. This study began as an investigation of acute flaccid paralysis (AFP) in a small area of eastern Bolivia, where surveillance had identified a persistently high AFP rate in children. Stools were collected and diagnostic studies ruled out poliovirus. We tested stool specimens from 51 AFP cases and 34 healthy household or community contacts collected during 2002-2003 using real-time and semi-nested reverse transcription polymerase chain reaction assays for enterovirus, parechovirus, cardiovirus, kobuvirus, salivirus and cosavirus. Anecdotal reports suggested a temporal association with neurological disease in domestic pigs, so six porcine stools were also collected and tested with the same set of assays, with the addition of an assay for porcine teschovirus. A total of 126 picornaviruses were detected in 73 of 85 human individuals, consisting of 53 different picornavirus types encompassing five genera (all except Kobuvirus). All six porcine stools contained porcine and/or human picornaviruses. No single virus, or combination of viruses, specifically correlated with AFP; however, the study revealed a surprising complexity of enteric picornaviruses in a single community.
Collapse
Affiliation(s)
- W Allan Nix
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | | | - Kaija Maher
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Linda Venczel
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Zsuzsa Cselkó
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Maria Cecilia Freire
- Instituto Nacional de Enfemedades Infecciosos C. Malbrán, Buenos Aires, Argentina
| | - Daniel Cisterna
- Instituto Nacional de Enfemedades Infecciosos C. Malbrán, Buenos Aires, Argentina
| | - Cristina L Lema
- Instituto Nacional de Enfemedades Infecciosos C. Malbrán, Buenos Aires, Argentina
| | | | | | | | | | | | | | | |
Collapse
|