Abstract:
:Human respiratory syncytial virus (RSV) is a serious respiratory pathogen in infants and young children as well as elderly and immunocompromised populations. However, no RSV vaccines are available. We have explored the potential of virus-like particles (VLPs) as an RSV vaccine candidate. VLPs composed entirely of RSV proteins were produced at levels inadequate for their preparation as immunogens. However, VLPs composed of the Newcastle disease virus (NDV) nucleocapsid and membrane proteins and chimera proteins containing the ectodomains of RSV F and G proteins fused to the transmembrane and cytoplasmic domains of NDV F and HN proteins, respectively, were quantitatively prepared from avian cells. Immunization of mice with these VLPs, without adjuvant, stimulated robust, anti-RSV F and G protein antibody responses. IgG2a/IgG1 ratios were very high, suggesting predominantly T(H)1 responses. In contrast to infectious RSV immunization, neutralization antibody titers were robust and stable for 4 months. Immunization with a single dose of VLPs resulted in the complete protection of mice from RSV replication in lungs. Upon RSV intranasal challenge of VLP-immunized mice, no enhanced lung pathology was observed, in contrast to the pathology observed in mice immunized with formalin-inactivated RSV. These results suggest that these VLPs are effective RSV vaccines in mice, in contrast to other nonreplicating RSV vaccine candidates.
journal_name
J Viroljournal_title
Journal of virologyauthors
McGinnes LW,Gravel KA,Finberg RW,Kurt-Jones EA,Massare MJ,Smith G,Schmidt MR,Morrison TGdoi
10.1128/JVI.01861-10subject
Has Abstractpub_date
2011-01-01 00:00:00pages
366-77issue
1eissn
0022-538Xissn
1098-5514pii
JVI.01861-10journal_volume
85pub_type
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/JVI.68.1.111-122.1994
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.13.5.1046-1054.1974
更新日期:1974-05-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.62.7.2512-2515.1988
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pub_type: 杂志文章
doi:10.1128/jvi.74.21.10112-10121.2000
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.7.3804-3812.1991
更新日期:1991-07-01 00:00:00
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doi:10.1128/JVI.69.9.5278-5286.1995
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pub_type: 杂志文章
doi:10.1128/jvi.78.1.285-293.2004
更新日期:2004-01-01 00:00:00
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journal_title:Journal of virology
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pub_type: 杂志文章
doi:10.1128/JVI.55.3.890-891.1985
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02506-05
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/jvi.78.6.3110-3122.2004
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journal_title:Journal of virology
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.12.6.1466-1472.1973
更新日期:1973-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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pub_type: 杂志文章
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