Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model
An enterovirus 71 (EV71) vaccine for the prevention of hand, foot, and mouth disease (HMFD) is available, but it is not known whether the EV71 vaccine cross-protects against Coxsackievirus (CV) infection. Furthermore, although an inactivated circulating CVA16 Changchun 024 (CC024) strain vaccine can...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Divulgação Científica
2015-03-01
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| Series: | Brazilian Journal of Medical and Biological Research |
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| Online Access: | http://www.scielo.br/pdf/bjmbr/v48n5/1414-431X-bjmbr-1414-431X20144298.pdf |
| _version_ | 1798013828847370240 |
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| author | L. Huang X. Liu J.L. Li J.L. Chang G.C. Liu X.F. Yu W.Y. Zhang |
| author_facet | L. Huang X. Liu J.L. Li J.L. Chang G.C. Liu X.F. Yu W.Y. Zhang |
| author_sort | L. Huang |
| collection | DOAJ |
| description | An enterovirus 71 (EV71) vaccine for the prevention of hand, foot, and mouth disease (HMFD) is available, but it is not known whether the EV71 vaccine cross-protects against Coxsackievirus (CV) infection. Furthermore, although an inactivated circulating CVA16 Changchun 024 (CC024) strain vaccine candidate is effective in newborn mice, the CC024 strain causes severe lesions in muscle and lung tissues. Therefore, an effective CV vaccine with improved pathogenic safety is needed. The aim of this study was to evaluate the in vivo safety and in vitro replication capability of a noncirculating CVA16 SHZH05 strain. The replication capacity of circulating CVA16 strains CC024, CC045, CC090 and CC163 and the noncirculating SHZH05 strain was evaluated by cytopathic effect in different cell lines. The replication capacity and pathogenicity of the CC024 and SHZH05 strains were also evaluated in a neonatal mouse model. Histopathological and viral load analyses demonstrated that the SHZH05 strain had an in vitro replication capacity comparable to the four CC strains. The CC024, but not the SHZH05 strain, became distributed in a variety of tissues and caused severe lesions and mortality in neonatal mice. The differences in replication capacity and in vivo pathogenicity of the CC024 and SHZH05 strains may result from differences in the nucleotide and amino acid sequences of viral functional polyproteins P1, P2 and P3. Our findings suggest that the noncirculating SHZH05 strain may be a safer CV vaccine candidate than the CC024 strain. |
| first_indexed | 2024-04-11T15:08:55Z |
| format | Article |
| id | doaj.art-efb991efe11545d7904ea12b904ac7a3 |
| institution | Directory Open Access Journal |
| issn | 1414-431X |
| language | English |
| last_indexed | 2024-04-11T15:08:55Z |
| publishDate | 2015-03-01 |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-efb991efe11545d7904ea12b904ac7a32022-12-22T04:16:43ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X2015-03-0148542042610.1590/1414-431x20144298Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse modelL. HuangX. LiuJ.L. LiJ.L. ChangG.C. LiuX.F. YuW.Y. ZhangAn enterovirus 71 (EV71) vaccine for the prevention of hand, foot, and mouth disease (HMFD) is available, but it is not known whether the EV71 vaccine cross-protects against Coxsackievirus (CV) infection. Furthermore, although an inactivated circulating CVA16 Changchun 024 (CC024) strain vaccine candidate is effective in newborn mice, the CC024 strain causes severe lesions in muscle and lung tissues. Therefore, an effective CV vaccine with improved pathogenic safety is needed. The aim of this study was to evaluate the in vivo safety and in vitro replication capability of a noncirculating CVA16 SHZH05 strain. The replication capacity of circulating CVA16 strains CC024, CC045, CC090 and CC163 and the noncirculating SHZH05 strain was evaluated by cytopathic effect in different cell lines. The replication capacity and pathogenicity of the CC024 and SHZH05 strains were also evaluated in a neonatal mouse model. Histopathological and viral load analyses demonstrated that the SHZH05 strain had an in vitro replication capacity comparable to the four CC strains. The CC024, but not the SHZH05 strain, became distributed in a variety of tissues and caused severe lesions and mortality in neonatal mice. The differences in replication capacity and in vivo pathogenicity of the CC024 and SHZH05 strains may result from differences in the nucleotide and amino acid sequences of viral functional polyproteins P1, P2 and P3. Our findings suggest that the noncirculating SHZH05 strain may be a safer CV vaccine candidate than the CC024 strain.http://www.scielo.br/pdf/bjmbr/v48n5/1414-431X-bjmbr-1414-431X20144298.pdfCoxsackievirus A16PathogenicityCirculating strainNon-circulating strain |
| spellingShingle | L. Huang X. Liu J.L. Li J.L. Chang G.C. Liu X.F. Yu W.Y. Zhang Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model Brazilian Journal of Medical and Biological Research Coxsackievirus A16 Pathogenicity Circulating strain Non-circulating strain |
| title | Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model |
| title_full | Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model |
| title_fullStr | Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model |
| title_full_unstemmed | Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model |
| title_short | Comparative pathogenicity of Coxsackievirus A16 circulating and noncirculating strains in vitro and in a neonatal mouse model |
| title_sort | comparative pathogenicity of coxsackievirus a16 circulating and noncirculating strains in vitro and in a neonatal mouse model |
| topic | Coxsackievirus A16 Pathogenicity Circulating strain Non-circulating strain |
| url | http://www.scielo.br/pdf/bjmbr/v48n5/1414-431X-bjmbr-1414-431X20144298.pdf |
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