Actualité

[ARTICLE] Ultrasound-Responsive Cavitation Nuclei for Therapy and Drug Delivery

  • Recherche,
  • Santé-Sciences-Technologie,
Date(s)

le 3 avril 2020

Published in Ultrasound Med Biol

Collaborative research project led by Prof. C. Holland (Department of Biomedical Engineering, College of Engineering and Applied Sciences, University of Cincinnati, Cincinnati, OH, USA) in which Drs. Escoffre and Bouakaz participated

Ultrasound-Responsive Cavitation Nuclei for Therapy and Drug Delivery

Abstract

Therapeutic ultrasound strategies that harness the mechanical activity of cavitation nuclei for beneficial tissue bio-effects are actively under development. The mechanical oscillations of circulating microbubbles, the most widely investigated cavitation nuclei, which may also encapsulate or shield a therapeutic agent in the bloodstream, trigger and promote localized uptake. Oscillating microbubbles can create stresses either on nearby tissue or in surrounding fluid to enhance drug penetration and efficacy in the brain, spinal cord, vasculature, immune system, biofilm or tumors. This review summarizes recent investigations that have elucidated interactions of ultrasound and cavitation nuclei with cells, the treatment of tumors, immunotherapy, the blood-brain and blood-spinal cord barriers, sonothrombolysis, cardiovascular drug delivery and sonobactericide. In particular, an overview of salient ultrasound features, drug delivery vehicles, therapeutic transport routes and pre-clinical and clinical studies is provided. Successful implementation of ultrasound and cavitation nuclei-mediated drug delivery has the potential to change the way drugs are administered systemically, resulting in more effective therapeutics and less-invasive treatments.

Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.

Keywords

#Blood–brain barrier opening; Bubble–cell interaction; #Cavitation nuclei; #Drug delivery; #Sonobactericide; #Sonoporation; #Sonothrombolysis; #Therapy; #Tumor; #Ultrasound

Contact :
Dr. Ayache Bouakaz :