Nanoparticles deliver `suicide gene` therapy to pediatric brain tumors growing in mice
(PHYSorg.com Nanotechnology)

Johns Hopkins researchers report that a type of biodegradable, lab-engineered nanoparticle they fashioned can successfully deliver a `suicide gene` to pediatric brain tumor cells implanted in the brains of mice. The poly(beta-amino ester) nanoparticles, known as PBAEs, were part of a treatment that also used a drug to kill the cells and prolong the test animals` survival.