Investigation of parameters that determine Nano-DC vaccine transport

Jingxin Zhang, Junhua Mai, Feng Li, Jianliang Shen, Guodong Zhang, Jun Li, Louis E. Hinkle, Daniel Lin, Xuewu Liu, Zheng Li, Rong fu Wang, Elizabeth A. Mittendorf, Mauro Ferrari, Haifa Shen

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Effective migration of dendritic cells into the lymphatic system organs is the prerequisite for a functional dendritic cell vaccine. We have previously developed a porous silicon microparticle (PSM)-based therapeutic dendritic cell vaccine (Nano-DC vaccine) where PSM serves both as the vehicle for antigen peptides and an adjuvant. Here, we analyzed parameters that determined dendritic cell uptake of PSM particles and Nano-DC vaccine accumulation in lymphatic tissues in a murine model of HER2-positive breast cancer. Our study revealed a positive correlation between sphericity of the PSM particles and their cellular uptake by circulating dendritic cells. In addition, the intravenously administered vaccines accumulated more in the spleens and inguinal lymph nodes, while the intradermally inoculated vaccines got enriched in the popliteal lymph nodes. Furthermore, mice with large tumors received more vaccines in the lymph nodes than those with small to medium size tumors. Information from this study will provide guidance on design and optimization of future therapeutic cancer vaccines.

Original languageEnglish (US)
Article number39
JournalBiomedical Microdevices
Volume21
Issue number2
DOIs
StatePublished - Jun 1 2019

Keywords

  • Biodistribution
  • Microparticle
  • Nano-DC vaccine
  • Silicon
  • Transport

ASJC Scopus subject areas

  • Biomedical Engineering
  • Molecular Biology

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