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Enhancement of antigen-specific CD4+ and CD8+ T cell responses using a self-assembled biologic nanolipoprotein particle vaccine

Journal Article · · Vaccine
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  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Biosciences and Biotechnology Division
  2. Loyola Univ. Medical Center, Maywood, IL (United States). Dept. of Microbiology & Immunology

To address the need for vaccine platforms that induce robust cell-mediated immunity, we investigated the potential of utilizing self-assembling biologic nanolipoprotein particles (NLPs) as an antigen and adjuvant delivery system to induce antigen-specific murine T cell responses. Here, we utilized OT-I and OT-II TCR-transgenic mice to investigate the effects of NLP-mediated delivery of the model antigen ovalbumin (OVA) on T cell activation. Delivery of OVA with the TLR4 agonist monophosphoryl lipid A (MPLA) in the context of NLPs significantly enhanced the activation of both CD4+ and CD8+ T cells in vitro compared to co-administration of free OVA and MPLA. Upon intranasal immunization of mice harboring TCR-transgenic cells, NLPs enhanced the adjuvant effects of MPLA and the in vivo delivery of OVA, leading to significantly increased expansion of CD4+ and CD8+ T cells in lung-draining lymph nodes. Therefore, NLPs are a promising vaccine platform for inducing T cell responses following intranasal administration.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Electricity Delivery and Energy Reliability (OE), Power Systems Engineering Research and Development (R&D) (OE-10)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1409999
Alternate ID(s):
OSTI ID: 1397843
Report Number(s):
LLNL-JRNL--724260
Journal Information:
Vaccine, Journal Name: Vaccine Journal Issue: 11 Vol. 35; ISSN 0264-410X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Lipid composition dictates serum stability of reconstituted high-density lipoproteins: implications for in vivo applications journal January 2018
Extent of MHC Clustering Regulates Selectivity and Effectiveness of T Cell Responses journal December 2018

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