Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.

Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract illness in infants, young children and the elderly. However, there is no licensed vaccine available against RSV infection. In this study, we generated virus-like particle (VLP) vaccine and investigated the vaccine effi...

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Main Authors: Ah-Ra Kim, Dong-Hun Lee, Su-Hwa Lee, Ilaria Rubino, Hyo-Jick Choi, Fu-Shi Quan
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5770062?pdf=render
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author Ah-Ra Kim
Dong-Hun Lee
Su-Hwa Lee
Ilaria Rubino
Hyo-Jick Choi
Fu-Shi Quan
author_facet Ah-Ra Kim
Dong-Hun Lee
Su-Hwa Lee
Ilaria Rubino
Hyo-Jick Choi
Fu-Shi Quan
author_sort Ah-Ra Kim
collection DOAJ
description Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract illness in infants, young children and the elderly. However, there is no licensed vaccine available against RSV infection. In this study, we generated virus-like particle (VLP) vaccine and investigated the vaccine efficacy in a mouse model. For VLP vaccines, tandem gene (1-780 bp) for V1 VLPs and tandem repeat gene (repeated 450-780 bp) for V5 VLPs were constructed in pFastBacTM vectors, respectively. Influenza matrix protein 1 (M1) was used as a core protein in the VLPs. Notably, upon challenge infection, significantly lower virus loads were measured in the lung of mice immunized with V1 or V5 VLPs compared to those of naïve mice and formalin-inactivated RSV immunized control mice. In particular, V5 VLPs immunization showed significantly lower virus titers than V1 VLPs immunization. Furthermore, V5 VLPs immunization elicited increased memory B cells responses in the spleen. These results indicated that V5 VLP vaccine containing tandem repeat gene protein provided better protection than V1 VLPs with significantly decreased inflammation in the lungs. Thus, V5 VLPs could be a potential vaccine candidate against RSV.
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spelling doaj.art-3141d2170857443eb36d8960787908792022-12-21T19:47:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01131e019127710.1371/journal.pone.0191277Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.Ah-Ra KimDong-Hun LeeSu-Hwa LeeIlaria RubinoHyo-Jick ChoiFu-Shi QuanRespiratory syncytial virus (RSV) is the leading cause of lower respiratory tract illness in infants, young children and the elderly. However, there is no licensed vaccine available against RSV infection. In this study, we generated virus-like particle (VLP) vaccine and investigated the vaccine efficacy in a mouse model. For VLP vaccines, tandem gene (1-780 bp) for V1 VLPs and tandem repeat gene (repeated 450-780 bp) for V5 VLPs were constructed in pFastBacTM vectors, respectively. Influenza matrix protein 1 (M1) was used as a core protein in the VLPs. Notably, upon challenge infection, significantly lower virus loads were measured in the lung of mice immunized with V1 or V5 VLPs compared to those of naïve mice and formalin-inactivated RSV immunized control mice. In particular, V5 VLPs immunization showed significantly lower virus titers than V1 VLPs immunization. Furthermore, V5 VLPs immunization elicited increased memory B cells responses in the spleen. These results indicated that V5 VLP vaccine containing tandem repeat gene protein provided better protection than V1 VLPs with significantly decreased inflammation in the lungs. Thus, V5 VLPs could be a potential vaccine candidate against RSV.http://europepmc.org/articles/PMC5770062?pdf=render
spellingShingle Ah-Ra Kim
Dong-Hun Lee
Su-Hwa Lee
Ilaria Rubino
Hyo-Jick Choi
Fu-Shi Quan
Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.
PLoS ONE
title Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.
title_full Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.
title_fullStr Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.
title_full_unstemmed Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.
title_short Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein.
title_sort protection induced by virus like particle vaccine containing tandem repeat gene of respiratory syncytial virus g protein
url http://europepmc.org/articles/PMC5770062?pdf=render
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