Ετικέτες

Δευτέρα 27 Φεβρουαρίου 2017

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

1-s2.0-S0264410X17X0008X-cov150h.gif

Publication date: 13 March 2017
Source:Vaccine, Volume 35, Issue 11
Author(s): Dina Weilhammer, Alexis D. Dunkle, Craig D. Blanchette, Nicholas O. Fischer, Michele Corzett, Doerte Lehmann, Tyler Boone, Paul Hoeprich, Adam Driks, Amy Rasley
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. 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.



http://ift.tt/2mw7BGX

Δεν υπάρχουν σχόλια:

Δημοσίευση σχολίου

Αναζήτηση αυτού του ιστολογίου