Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/111725
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Type: Journal article
Title: Antibody responses to a quadrivalent Hepatitis C viral-like particle vaccine adjuvanted with Toll-like receptor 2 agonists
Author: Christiansen, D.
Earnest-Silveira, L.
Chua, B.
Boo, I.
Drummer, H.
Grubor-Bauk, B.
Gowans, E.
Jackson, D.
Torresi, J.
Citation: Viral Immunology, 2018; 31(4):1-6
Publisher: Mary Ann Liebert Inc.
Issue Date: 2018
ISSN: 1557-8976
1557-8976
Statement of
Responsibility: 
Dale Christiansen, Linda Earnest-Silveira, Brendon Chua, Irene Boo, Heidi E. Drummer, Branka Grubor-Bauk, Eric J. Gowans, David C. Jackson, and Joseph Torresi
Abstract: The development of an effective preventative hepatitis C virus (HCV) vaccine will reside, in part, in its ability to elicit neutralizing antibodies (NAbs). We previously reported a genotype 1a HCV virus like particle (VLP) vaccine that produced HCV specific NAb and T cell responses that were substantially enhanced by Toll-like receptor 2 (TLR2) agonists. We have now produced a quadrivalent genotype 1a/1b/2a/3a HCV VLP vaccine and tested the ability of two TLR2 agonists, R₄Pam₂Cys and E₈Pam₂Cys, to stimulate the production of NAb. We now show that our vaccine with R₄Pam₂Cys or E₈Pam₂Cys produces strong antibody and NAb responses in vaccinated mice after just two doses. Total antibody titers were higher in mice inoculated with vaccine plus E₈Pam₂Cys compared to HCV VLPs alone. However, the TLR2 agonists did not result in stronger NAb responses compared to vaccine without adjuvant. Such a vaccine could provide a substantial addition to the overall goal to eliminate HCV.
Keywords: Hepatitis C; neutralizing antibody; virus like particles; quadrivalent vaccine
Rights: © Mary Ann Liebert, Inc.
RMID: 0030083475
DOI: 10.1089/vim.2017.0182
Grant ID: http://purl.org/au-research/grants/nhmrc/1060436
http://purl.org/au-research/grants/nhmrc/1126379
http://purl.org/au-research/grants/nhmrc/1060433
Appears in Collections:Medicine publications

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