Journal article
Antigen sparing and enhanced protection using a novel rOv-ASP-1 adjuvant in aqueous formulation with influenza vaccines
Vaccine, v 32(23), pp 2696-2702
13 May 2014
PMID: 24681229
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
•rOv-ASP-1 enhances a stronger antibody response to influenza vaccine.•rOv-ASP-1 enhances cross-reactive antibody responses to influenza vaccine.•rOv-ASP-1 enhances the protection afforded by an inactivated influenza vaccine after challenge with a heterologous influenza virus.
Influenza is one of the most common infectious diseases endangering the health of humans, especially young children and the elderly. Although vaccination is the most effective means of protection against influenza, frequent mutations in viral surface antigens, low protective efficacy of the influenza vaccine in the elderly, slow production process and the potential of vaccine supply shortage during a pandemic are significant limitations of current vaccines. Adjuvants have been used to enhance the efficacy of a variety of vaccines; however, no adjuvant is included in current influenza vaccines approved in the United States. In this study, we found that a novel adjuvant, rOv-ASP-1, co-administrated with inactivated influenza vaccine using an aqueous formulation, substantially improved the influenza-specific antibody response and protection against lethal infection in a mouse model. rOv-ASP-1 enhanced the magnitude of the specific antibody response after immunization with low doses of influenza vaccine, allowing antigen-sparring by 10-fold. The rOv-ASP-1 formulated vaccine induced a more rapid response and a stronger Th1-associated antibody response compared to vaccine alone and to the vaccine formulated with the adjuvant alum. Importantly, rOv-ASP-1 significantly enhanced cross-reactive antibody responses and protection against challenge with an antigenically distinct strain. These results demonstrate that rOv-ASP-1 is an effective adjuvant that: (1) accelerates and enhances the specific antibody response induced by influenza vaccine; (2) allows for antigen sparing; and (3) augments a Th1-biased and cross-reactive antibody response that confers protection against an antigenically distinct strain.
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Details
- Title
- Antigen sparing and enhanced protection using a novel rOv-ASP-1 adjuvant in aqueous formulation with influenza vaccines
- Creators
- Jiu Jiang - Department of Biology, Drexel University, 3245 Chestnut Street, Philadelphia, PA 19104, USAErin M Fisher - Department of Biology, Drexel University, 3245 Chestnut Street, Philadelphia, PA 19104, USAScott E Hensley - The Wistar Institute, Philadelphia, PA 19104, USASara Lustigman - Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY 10065, USADonna M Murasko - Department of Biology, Drexel University, 3245 Chestnut Street, Philadelphia, PA 19104, USAHao Shen - Department of Microbiology, University of Pennsylvania Perelman School of Medicine, 3610 Hamilton Walk, Philadelphia, PA 19104, USA
- Publication Details
- Vaccine, v 32(23), pp 2696-2702
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Microbiology and Immunology; Biology
- Web of Science ID
- WOS:000336776400007
- Scopus ID
- 2-s2.0-84899971883
- Other Identifier
- 991014877839004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Immunology
- Medicine, Research & Experimental