Nanoparticles Bind to Endothelial Cells in Injured Blood Vessels via a Transient Protein Corona

Zachary P. Lin, Wayne Ngo, Stefan M. Mladjenovic, Jamie L.Y. Wu, Warren C.W. Chan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Nanoparticles travel through blood vessels to reach disease sites, but the local environment they encounter may affect their surface chemistry and cellular interactions. Here, we found that as nanoparticles transit through injured blood vessels they may interact with a highly localized concentration of platelet factor 4 proteins released from activated platelets. The platelet factor 4 binds to the nanoparticle surface and interacts with heparan sulfate proteoglycans on endothelial cells, and induces uptake. Understanding nanoparticle interactions with blood proteins and endothelial cells during circulation is critical to optimizing their design for diseased tissue targeting and delivery.

Original languageEnglish
Pages (from-to)1003-1009
Number of pages7
JournalNano Letters
Volume23
Issue number3
DOIs
Publication statusPublished - Feb 8 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus Subject Areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

Keywords

  • Delivery
  • Endothelial cells
  • Nanoparticles
  • Platelet factor 4
  • Protein Corona
  • Vessels

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