19F MRI in orthotopic cancer model via intratracheal administration of ανβ3-targeted perfluorocarbon nanoparticles

Nanomedicine (Lond). 2018 Oct;13(20):2551-2562. doi: 10.2217/nnm-2018-0051. Epub 2018 Oct 19.

Abstract

Aim: To demonstrate the feasibility of intratracheal administration in orthotopic lung cancer model with 19F MRI.

Materials & methods: αvβ3-integrin targeting ability of the perfluorocarbon (PFC) nanoparticles was tested. Orthotopic lung cancer model was established in rabbits under computed tomography guidance. αvβ3-targeted PFC nanoparticles were administrated intratracheally or intravenously, and 19F MRI was performed before and up to 24 h after administration.

Results: The targeted PFC nanoparticles could bind with αvβ3-integrin. PFC concentrations in the tumors of intratracheal group after administration were significantly higher than intravenous group.

Conclusion: Intratracheal administration of PFC nanoparticles was shown to be feasible and efficacious. 19F MRI with αvβ3-targeted PFC nanoparticles provided quantitative assessment of nanoparticles distribution and tumor angiogenesis.

Keywords: 19F MR; intratracheal administration; orthotopic tumor; perfluorocarbon nanoparticles; αvβ3-integrin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Contrast Media
  • Fluorine-19 Magnetic Resonance Imaging
  • Humans
  • Integrin alphaVbeta3 / antagonists & inhibitors
  • Integrin alphaVbeta3 / genetics*
  • Lung Neoplasms / diagnostic imaging
  • Lung Neoplasms / drug therapy*
  • Lung Neoplasms / genetics
  • Molecular Targeted Therapy*
  • Neovascularization, Pathologic / diagnostic imaging
  • Neovascularization, Pathologic / drug therapy*
  • Neovascularization, Pathologic / pathology
  • Orthotic Devices
  • Rabbits

Substances

  • Contrast Media
  • Integrin alphaVbeta3