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Title: Immunogenic Properties of a BCG Adjuvanted Chitosan Nanoparticle-Based Dengue Vaccine in Human Dendritic Cells
Authors: Taweewun Hunsawong
Panya Sunintaboon
Saradee Warit
Butsaya Thaisomboonsuk
Richard G. Jarman
In Kyu Yoon
Sukathida Ubol
Stefan Fernandez
Armed Forces Research Institute of Medical Sciences, Thailand
Mahidol University
Thailand National Center for Genetic Engineering and Biotechnology
Walter Reed Army Institute of Research
United States Army
Keywords: Medicine
Issue Date: 22-Sep-2015
Citation: PLoS Neglected Tropical Diseases. Vol.9, No.9 (2015)
Abstract: © 2015, Public Library of Science. All Rights Reserved. Dengue viruses (DENVs) are among the most rapidly and efficiently spreading arboviruses. WHO recently estimated that about half of the world’s population is now at risk for DENV infection. There is no specific treatment or vaccine available to treat or prevent DENV infections. Here, we report the development of a novel dengue nanovaccine (DNV) composed of UV-inactivated DENV-2 (UVI-DENV) and Mycobacterium bovis Bacillus Calmette-Guerin cell wall components (BCG-CWCs) loaded into chitosan nanoparticles (CS-NPs). CS-NPs were prepared by an emulsion polymerization method prior to loading of the BCG-CWCs and UVI-DENV components. Using a scanning electron microscope and a zetasizer, DNV was determined to be of spherical shape with a diameter of 372.0 ± 11.2 nm in average and cationic surface properties. The loading efficacies of BCG-CWCs and UVI-DENV into the CS-NPs and BCG-CS-NPs were up to 97.2 and 98.4%, respectively. THP-1 cellular uptake of UVI-DENV present in the DNV was higher than soluble UVI-DENV alone. DNV stimulation of immature dendritic cells (iDCs) resulted in a significantly higher expression of DCs maturation markers (CD80, CD86 and HLA-DR) and induction of various cytokine and chemokine productions than in UVI-DENV-treated iDCs, suggesting a potential use of BCG- CS-NPs as adjuvant and delivery system for dengue vaccines.
ISSN: 19352735
Appears in Collections:Scopus 2011-2015

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