Enhancing drug delivery for boron neutron capture therapy of brain tumors with focused ultrasound
Author(s) -
Ryan Alkins,
Peter Brodersen,
R. N. S. Sodhi,
Kullervo Hynynen
Publication year - 2013
Publication title -
neuro-oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.005
H-Index - 125
eISSN - 1523-5866
pISSN - 1522-8517
DOI - 10.1093/neuonc/not052
Subject(s) - microbubbles , gliosarcoma , ultrasound , collateral damage , neutron capture , focused ultrasound , drug delivery , brain tumor , medicine , chemistry , nuclear medicine , glioma , boron , cancer research , pathology , radiology , criminology , organic chemistry , sociology
Glioblastoma is a notoriously difficult tumor to treat because of its relative sanctuary in the brain and infiltrative behavior. Therapies need to penetrate the CNS but avoid collateral tissue injury. Boron neutron capture therapy (BNCT) is a treatment whereby a (10)B-containing drug preferentially accumulates in malignant cells and causes highly localized damage when exposed to epithermal neutron irradiation. Studies have suggested that (10)B-enriched L-4-boronophenylalanine-fructose (BPA-f) complex uptake can be improved by enhancing the permeability of the cerebrovasculature with osmotic agents. We investigated the use of MRI-guided focused ultrasound, in combination with injectable microbubbles, to noninvasively and focally augment the uptake of BPA-f.
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