Impact of Tumor Barriers on Nanoparticle Delivery to Macrophages

Ben Ouyang, Benjamin R. Kingston, Wilson Poon, Yi Nan Zhang, Zachary P. Lin, Abdullah M. Syed, Julien Couture-Senécal, Warren C.W. Chan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The delivery of therapeutic nanoparticles to target cells is critical to their effectiveness. Here we quantified the impact of biological barriers on the delivery of nanoparticles to macrophages in two different tissues. We compared the delivery of gold nanoparticles to macrophages in the liver versus those in the tumor. We found that nanoparticle delivery to macrophages in the tumor was 75% less than to macrophages in the liver due to structural barriers. The tumor-associated macrophages took up more nanoparticles than Kupffer cells in the absence of barriers. Our results highlight the impact of biological barriers on nanoparticle delivery to cellular targets.

Original languageEnglish
Pages (from-to)1917-1925
Number of pages9
JournalMolecular Pharmaceutics
Volume19
Issue number6
DOIs
Publication statusPublished - Jun 6 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

ASJC Scopus Subject Areas

  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery

Keywords

  • cancer
  • delivery
  • gold
  • macrophage
  • nanoparticle
  • tumor

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