Drug research targets brain ‘barrier’

Scientists at the University of Portsmouth have won nearly half a million pounds to develop a way of allowing drugs to be delivered straight to the brain. The grant allows a team to spend the next three years trying to unlock the blood brain barrier to allow drugs to be targeted at diseases including cancer. The £451,000 grant was given by the Biotechnology and Biological Sciences Research Council.

Dr Eugen Barbu, a chemist, will lead a team of four scientists from the School of Pharmacy aiming to modify a natural polymer so it can temporarily create an opening in the blood brain barrier in order to deliver medicines. They will use polymer-based nanoparticles that are approximately 1/1000 of the diameter of a single human hair.

The modified polymer would be small enough to breach the blood brain barrier and would act like a delivery container carrying the drug. The research team chose to study natural polymers because they make excellent drug-carriers, are non-toxic and are biodegradable and biocompatible.
 
If successful, the temporary unlocking of the filter would allow a range of brain diseases to be treated more efficiently. It is hoped that in the long-term these formulations will be useful for the treatment of a range of brain diseases including brain tumours, stroke and neurodegenerative disorders.

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