Sound waves open the gate: a new way to smuggle gene medicine into brain tumours

Glioblastoma hides behind one of the body's best locks: the blood-brain barrier, which keeps most medicines out of the brain. A University of Virginia team led by neuro-oncologist Roger Abounader combined three tools to pick it — MRI-guided focused ultrasound, microscopic bubbles that briefly loosen the barrier at one precise spot, and nanoparticles carrying two microRNAs, tiny genetic molecules that can disrupt several cancer-driving pathways at once. In laboratory and animal studies, including tumours grown from patients' own cells, the combination reduced tumour burden and extended survival; without the ultrasound step, it did not. Human testing is still ahead — but a locked door now has a working key design.

SDG 3 · Good health and well-being — Mechanism: tech innovation