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Zhang M, Guo W, Xu D, Feng C, Bao G, Sun H, Yang Z, Ma S. Molecular characterization of echovirus 9 strains isolated from hand-foot-and-mouth disease in Kunming, Yunnan Province, China. Sci Rep 2022; 12:2293. [PMID: 35145190 PMCID: PMC8831506 DOI: 10.1038/s41598-022-06309-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/24/2022] [Indexed: 11/09/2022] Open
Abstract
Echovirus 9 (E9) belongs to the species Enterovirus B. So far, 12 whole genome sequences of E9 are available in GenBank. In this study, we determined the whole genomic sequences of five E9 strains isolated from the stools of patients with hand-foot-and-mouth disease in Kunming, Yunnan Province, China, in 2019. Their nucleotide and amino acid sequences shared 80.8–80.9% and 96.4–96.8% identity with the prototype Hill strain, respectively, and shared 99.3–99.9% and 99.1–99.8% mutual identity, respectively. Recombination analyses revealed that intertype recombination had occurred in the 2C and 3D regions of the five Yunnan E9 strains with coxsackieviruses B5 and B4, respectively. This study augmented the whole genome sequences of E9 in the GenBank database and extended the molecular characterization of this virus in China.
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Affiliation(s)
- Ming Zhang
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China
| | - Wei Guo
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China
| | - Danhan Xu
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China
| | - Changzeng Feng
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China
| | - Guohong Bao
- First People's Hospital of Yunnan Province, Kunming, People's Republic of China
| | - Hao Sun
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China
| | - Zhaoqing Yang
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China
| | - Shaohui Ma
- Institute of Medical Biology, Peking Union Medical College, Chinese Academy of Medical Sciences, Kunming, 650118, People's Republic of China. .,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, People's Republic of China.
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Arévalo MT, Huang Y, Jones CA, Ross TM. Vaccination with a chikungunya virus-like particle vaccine exacerbates disease in aged mice. PLoS Negl Trop Dis 2019; 13:e0007316. [PMID: 31026260 PMCID: PMC6485612 DOI: 10.1371/journal.pntd.0007316] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 03/19/2019] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION Chikungunya virus (CHIKV) is a re-emerging pathogen responsible for causing outbreaks of febrile disease accompanied with debilitating joint pain. Symptoms typically persist for two weeks, but more severe and chronic chikungunya illnesses have been reported, especially in the elderly. Currently, there are no licensed vaccines or antivirals against CHIKV available. In this study, we combined a CHIK virus-like particle (VLP) vaccine with different adjuvants to enhance immunogenicity and protection in both, adult and aged mice. METHODS CHIK VLP-based vaccines were tested in 6-8-week-old (adult) and 18-24-month-old (aged) female C57BL/6J mice. Formulations contained CHIK VLP alone or adjuvants: QuilA, R848, or Imject Alum. Mice were vaccinated three times via intramuscular injections. CHIKV-specific antibody responses were characterized by IgG subclass using ELISA, and by microneutralization assays. In addition, CHIKV infections were characterized in vaccinated and non-vaccinated adult mice and compared to aged mice. RESULTS In adult mice, CHIKV infection of the right hind foot induced significant swelling, which peaked by day 7 post-infection at approximately 170% of initial size. Viral titers peaked at 2.53 × 1010 CCID50/ml on day 2 post-infection. Mice vaccinated with CHIK VLP-based vaccines developed robust anti-CHIKV-specific IgG antibody responses that were capable of neutralizing CHIKV in vitro. CHIK VLP alone or CHIK plus QuilA administered by IM injections protected 100% of mice against CHIKV. In contrast, the antibody responses elicited by the VLP-based vaccines were attenuated in aged mice, with negligible neutralizing antibody titers detected. Unvaccinated, aged mice were resistant to CHIKV infection, while vaccination with CHIKV VLPs exacerbated disease. CONCLUSIONS Unadjuvanted CHIK VLP vaccination elicits immune responses that protect 100% of adult mice against CHIKV infection. However, an improved vaccine/adjuvant combination is still necessary to enhance the protective immunity against CHIKV in the aged.
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Affiliation(s)
- Maria T. Arévalo
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, United States of America
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States of America
| | - Ying Huang
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, United States of America
| | - Cheryl A. Jones
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, United States of America
| | - Ted M. Ross
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, United States of America
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States of America
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Ahlbrecht J, Hillebrand LK, Schwenkenbecher P, Ganzenmueller T, Heim A, Wurster U, Stangel M, Sühs KW, Skripuletz T. Cerebrospinal fluid features in adults with enteroviral nervous system infection. Int J Infect Dis 2018; 68:94-101. [DOI: 10.1016/j.ijid.2018.01.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/16/2018] [Accepted: 01/19/2018] [Indexed: 12/16/2022] Open
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Wei L, Qiong Z, Xiao-ting S, Yu-jie L, Jian-hua M, Qiang S, Shi-qiang S. Molecular epidemiological study of enteroviruses associated with encephalitis in children from Hangzhou, China. Medicine (Baltimore) 2016; 95:e4870. [PMID: 27749541 PMCID: PMC5059043 DOI: 10.1097/md.0000000000004870] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 08/19/2016] [Accepted: 08/23/2016] [Indexed: 01/02/2023] Open
Abstract
Enterovirus (EV) has over 100 serotypes of species A-D, which can cause various symptoms in infants. Enterovirus encephalitis (EVE) is serve disease with high morbidity and mortality in children. To well define the epidemiology of EVE, we wanted to know more about EV and EV molecular typing by conducting this study in Hangzhou.Cerebrospinal fluid samples were collected from children with diagnosis of encephalitis. Meanwhile, one-step real-time RT-PCR was used for the detection of EV, and we also identified the serotypes of EV by using gene sequencing of VP1 or 5'UTR region.A total of 126 CSF specimens were tested and EV was detected in 26 specimens (20.6%). The molecular typing results showed different types of EV strains including Coxsackievirus B2, Coxsackievirus B3, Echovirus 5, Echovirus 16, Echovirus 18, Echovirus 30, and all EV isolates belonging to the human EV species B.According to the sequence of VP1 and 5'UTR region, E30 may be major cause of children's EVE in Hangzhou, China.
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Affiliation(s)
| | | | | | | | | | | | - Shang Shi-qiang
- Department of Clinical Laboratory, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
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Othman I, Mirand A, Slama I, Mastouri M, Peigue-Lafeuille H, Aouni M, Bailly JL. Enterovirus Migration Patterns between France and Tunisia. PLoS One 2015; 10:e0145674. [PMID: 26709514 PMCID: PMC4692522 DOI: 10.1371/journal.pone.0145674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Accepted: 12/06/2015] [Indexed: 02/03/2023] Open
Abstract
The enterovirus (EV) types echovirus (E-) 5, E-9, and E-18, and coxsackievirus (CV-) A9 are infrequently reported in human diseases and their epidemiologic features are poorly defined. Virus transmission patterns between countries have been estimated with phylogenetic data derived from the 1D/VP1 and 3CD gene sequences of a sample of 74 strains obtained in France (2000–2012) and Tunisia (2011–2013) and from the publicly available sequences. The EV types (E-5, E-9, and E-18) exhibited a lower worldwide genetic diversity (respective number of genogroups: 4, 5, and 3) in comparison to CV-A9 (n = 10). The phylogenetic trees estimated with both 1D/VP1 and 3CD sequence data showed variations in the number of co-circulating lineages over the last 20 years among the four EV types. Despite the low number of genogroups in E-18, the virus exhibited the highest number of recombinant 3CD lineages (n = 10) versus 4 (E-5) to 8 (E-9). The phylogenies provided evidence of multiple transportation events between France and Tunisia involving E-5, E-9, E-18, and CV-A9 strains. Virus spread events between France and 17 other countries in five continents had high probabilities of occurrence as those between Tunisia and two European countries other than France. All transportation events were supported by BF values > 10. Inferring the source of virus transmission from phylogenetic data may provide insights into the patterns of sporadic and epidemic diseases caused by EVs.
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Affiliation(s)
- Ines Othman
- University of Monastir, Faculty of Pharmacy, LR99-ES27, Monastir, Tunisia
- University of Carthage, Faculty of Sciences of Bizerte, Tunisia
| | - Audrey Mirand
- Université d’Auvergne, EPIE, EA 4843, Clermont-Ferrand, France
- CHU Clermont-Ferrand, Service de Virologie, Centre National de Référence des Enterovirus–Parechovirus, Clermont-Ferrand, France
| | - Ichrak Slama
- University of Monastir, Faculty of Pharmacy, LR99-ES27, Monastir, Tunisia
- University of Carthage, Faculty of Sciences of Bizerte, Tunisia
| | - Maha Mastouri
- University of Monastir, Faculty of Pharmacy, LR99-ES27, Monastir, Tunisia
- Fattouma Bourguiba University Hospital, Laboratory of Microbiology, Monastir, Tunisia
| | - Hélène Peigue-Lafeuille
- Université d’Auvergne, EPIE, EA 4843, Clermont-Ferrand, France
- CHU Clermont-Ferrand, Service de Virologie, Centre National de Référence des Enterovirus–Parechovirus, Clermont-Ferrand, France
| | - Mahjoub Aouni
- University of Monastir, Faculty of Pharmacy, LR99-ES27, Monastir, Tunisia
| | - Jean-Luc Bailly
- Université d’Auvergne, EPIE, EA 4843, Clermont-Ferrand, France
- * E-mail:
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Neurotropic Enterovirus Infections in the Central Nervous System. Viruses 2015; 7:6051-66. [PMID: 26610549 PMCID: PMC4664993 DOI: 10.3390/v7112920] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/06/2015] [Accepted: 11/13/2015] [Indexed: 02/03/2023] Open
Abstract
Enteroviruses are a group of positive-sense single stranded viruses that belong to the Picornaviridae family. Most enteroviruses infect humans from the gastrointestinal tract and cause mild symptoms. However, several enteroviruses can invade the central nervous system (CNS) and result in various neurological symptoms that are correlated to mortality associated with enteroviral infections. In recent years, large outbreaks of enteroviruses occurred worldwide. Therefore, these neurotropic enteroviruses have been deemed as re-emerging pathogens. Although these viruses are becoming large threats to public health, our understanding of these viruses, especially for non-polio enteroviruses, is limited. In this article, we review recent advances in the trafficking of these pathogens from the peripheral to the central nervous system, compare their cell tropism, and discuss the effects of viral infections in their host neuronal cells.
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