Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity

Chandravilas Keshvan Prashant,1 Madhusudan Bhat,1 Sandeep Kumar Srivastava,1 Ankit Saxena,2 Manoj Kumar,3 Amar Singh,2 Mohammed Samim,4 Farhan Jalees Ahmad,5 Amit Kumar Dinda1 1Department of Pathology, 2Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences,...

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Autores principales:	Prashant CK, Bhat M, Srivastava SK, Saxena A, Kumar M, Singh A, Samim M, Ahmad FJ, Dinda AK
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2014
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/e102a3263f4243748e5aef07f7f33dcb
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spelling	oai:doaj.org-article:e102a3263f4243748e5aef07f7f33dcb2021-12-02T05:14:39ZFabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity1178-2013https://doaj.org/article/e102a3263f4243748e5aef07f7f33dcb2014-02-01T00:00:00Zhttp://www.dovepress.com/fabrication-of-nanoadjuvant-with-poly-e-caprolactone-pcl-for-developin-a15789https://doaj.org/toc/1178-2013 Chandravilas Keshvan Prashant,1 Madhusudan Bhat,1 Sandeep Kumar Srivastava,1 Ankit Saxena,2 Manoj Kumar,3 Amar Singh,2 Mohammed Samim,4 Farhan Jalees Ahmad,5 Amit Kumar Dinda1 1Department of Pathology, 2Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, 3Centre for Biomedical Engineering, Indian Institute of Technology, 4Department of Chemistry, Faculty of Sciences, 5Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India Purpose: The aim of the study was to load a model antigen, tetanus toxoid (TT), in poly-ε-caprolactone nanoparticles (PCL NPs) of two size ranges, ie, mean 61.2 nm (small) and 467.6 nm (large), and study its effect on macrophage polarization as well as antigen presentation in human monocyte-derived macrophages in vitro, along with humoral and cell-mediated immune (CMI) response generated in Swiss albino mice following immunization with the TT-loaded NPs. Materials and methods: PCL NPs were synthesized by solvent evaporation. The antigen-loaded PCL NPs were characterized for size, zeta potential, and protein-release kinetics. Swiss albino mice were immunized with the antigen-loaded PCL NPs. Flow cytometry was used to quantify interferon-γ- and interleukin-4-secreting cluster of differentiation (CD)4+ and CD8+ T cells in the spleen, and enzyme-linked immunosorbent assay was used to quantify anti-TT antibody levels in the serum of immunized mice. Results: Small PCL NPs generated an M1/M2 type polarization of human blood monocyte-derived macrophages and T helper (Th)1/Th2 polarization of autologous CD4+ T cells. Efficient CD8+ T-cell responses were also elicited. Large PCL NPs failed to cause any type of macrophage polarization. They did not elicit efficient CD8+ T-cell responses. Conclusion: TT-loaded small PCL NPs were able to generate persistent and strong CMI and humoral responses against TT 2 months after single injection in mice without booster dose. This biodegradable nanoadjuvant system may help to develop single-shot immunization for prolonged immunity without booster doses. The capability of enhanced CMI response may have high translational potential for immunization against intracellular infection. Keywords: tetanus toxoid, antigen cross-presentation, poly-ε-caprolactone nanoparticles, vaccine, adjuvantPrashant CKBhat MSrivastava SKSaxena AKumar MSingh ASamim MAhmad FJDinda AKDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2014, Iss Issue 1, Pp 937-950 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Prashant CK Bhat M Srivastava SK Saxena A Kumar M Singh A Samim M Ahmad FJ Dinda AK Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity
description	Chandravilas Keshvan Prashant,1 Madhusudan Bhat,1 Sandeep Kumar Srivastava,1 Ankit Saxena,2 Manoj Kumar,3 Amar Singh,2 Mohammed Samim,4 Farhan Jalees Ahmad,5 Amit Kumar Dinda1 1Department of Pathology, 2Department of Transplant Immunology and Immunogenetics, All India Institute of Medical Sciences, 3Centre for Biomedical Engineering, Indian Institute of Technology, 4Department of Chemistry, Faculty of Sciences, 5Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India Purpose: The aim of the study was to load a model antigen, tetanus toxoid (TT), in poly-ε-caprolactone nanoparticles (PCL NPs) of two size ranges, ie, mean 61.2 nm (small) and 467.6 nm (large), and study its effect on macrophage polarization as well as antigen presentation in human monocyte-derived macrophages in vitro, along with humoral and cell-mediated immune (CMI) response generated in Swiss albino mice following immunization with the TT-loaded NPs. Materials and methods: PCL NPs were synthesized by solvent evaporation. The antigen-loaded PCL NPs were characterized for size, zeta potential, and protein-release kinetics. Swiss albino mice were immunized with the antigen-loaded PCL NPs. Flow cytometry was used to quantify interferon-γ- and interleukin-4-secreting cluster of differentiation (CD)4+ and CD8+ T cells in the spleen, and enzyme-linked immunosorbent assay was used to quantify anti-TT antibody levels in the serum of immunized mice. Results: Small PCL NPs generated an M1/M2 type polarization of human blood monocyte-derived macrophages and T helper (Th)1/Th2 polarization of autologous CD4+ T cells. Efficient CD8+ T-cell responses were also elicited. Large PCL NPs failed to cause any type of macrophage polarization. They did not elicit efficient CD8+ T-cell responses. Conclusion: TT-loaded small PCL NPs were able to generate persistent and strong CMI and humoral responses against TT 2 months after single injection in mice without booster dose. This biodegradable nanoadjuvant system may help to develop single-shot immunization for prolonged immunity without booster doses. The capability of enhanced CMI response may have high translational potential for immunization against intracellular infection. Keywords: tetanus toxoid, antigen cross-presentation, poly-ε-caprolactone nanoparticles, vaccine, adjuvant
format	article
author	Prashant CK Bhat M Srivastava SK Saxena A Kumar M Singh A Samim M Ahmad FJ Dinda AK
author_facet	Prashant CK Bhat M Srivastava SK Saxena A Kumar M Singh A Samim M Ahmad FJ Dinda AK
author_sort	Prashant CK
title	Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity
title_short	Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity
title_full	Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity
title_fullStr	Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity
title_full_unstemmed	Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity
title_sort	fabrication of nanoadjuvant with poly-e-caprolactone (pcl) for developing a single-shot vaccine providing prolonged immunity
publisher	Dove Medical Press
publishDate	2014
url	https://doaj.org/article/e102a3263f4243748e5aef07f7f33dcb
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Fabrication of nanoadjuvant with poly-e-caprolactone (PCL) for developing a single-shot vaccine providing prolonged immunity

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