Enhancement of antigen-specific CD4+ and CD8+ T cell responses using a self-assembled biologic nanolipoprotein particle vaccine
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Biosciences and Biotechnology Division
- 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 (OE), Advanced Grid Research & Development. Power Systems Engineering Research
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1409999
- Alternate ID(s):
- OSTI ID: 1397843
- Report Number(s):
- LLNL-JRNL-724260
- Journal Information:
- Vaccine, Vol. 35, Issue 11; ISSN 0264-410X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Lipid composition dictates serum stability of reconstituted high-density lipoproteins: implications for in vivo applications
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journal | January 2018 |
Extent of MHC Clustering Regulates Selectivity and Effectiveness of T Cell Responses
|
journal | December 2018 |
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