title: Therapeutic potential of ultrasound microbubbles in gastrointestinal oncology: recent advances and future prospects.
abstract: Microbubbles were initially invented as contrast agents for ultrasound imaging. However, lately more and more therapeutic applications of microbubbles are emerging, mostly related to drug and gene delivery. Ultrasound is a safe and noninvasive therapeutic modality which has the unique ability to interact with microbubbles and release their payload in situ in addition to permeabilizing the target tissues. The combination of drug-loaded microbubbles and ultrasound has been used in preclinical studies on blood-brain barrier opening, drug and gene delivery to solid tumors, and ablation of blood vessels. This review covers the basic principles of ultrasound-microbubble interaction, the types of microbubbles and the effect they have on tissue, and the preclinical and clinical experience with this approach to date in the field of gastrointestinal oncology.
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, WA, USA.
authors.forename: Tatiana D
authors.initials: TD
authors.lastname: Khokhlova
authors.affiliation: Department of Urology, University of Washington, Seattle, WA, USA.
authors.forename: Yasser
authors.initials: Y
authors.lastname: Haider
authors.affiliation: Associate Professor of Medicine, Division of Gastroenterology, Department of Medicine, University of Washington, Box 359773, 325 Ninth Avenue, Seattle, WA 98104, USA.
authors.forename: Joo Ha
authors.initials: JH
authors.lastname: Hwang
keywords: liver tumors; microbubbles; oncology; pancreatic cancer; review; ultrasound