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KU Leuven lab coordinates €9m effort to find new deep-sea drugs
Date:3/11/2013

The large-scale, four-year 'PharmaSea' project, which began in October 2012, brings together 24 partners from 13 countries and involves the collection of mud and sediment samples from extreme oceanic trenches up to nine kilometres deep; the creation of small-molecule extract libraries from marine bacteria isolated from these samples; and biological screening of these extracts to identify chemical compounds with drug-like properties. These molecules will be developed further as drug leads in three indication areas inflammation, infectious diseases, and CNS disorders.

Only a handful of samples from deep-sea trenches have ever been collected and studied, so the project is breaking new ground. One PharmaSea partner, Deeptek an SME based in Scotland has developed new instrumentation for sampling from the ocean bottoms using engineering technology based on salvaging operations that can considerably cut down costs. PharmaSea will also search for new microbes in other unique environments (e.g. thermal vents and whale falls) in collaboration with partners from New Zealand and Norway. "PharmaSea will not only be exploring new territory at the bottom of the oceans, but also new areas in 'chemical space'," says Esguerra.

Behavioural footprint

KU Leuven's lab is contributing to the third work package, which focuses on bioassays and screening. Senior scientist Alex Crawford explains: "Our lab will help isolate novel neuroactive compounds using zebrafish assays. In a first phase of screening, we will observe what zebrafish larvae do in the presence of the various deep sea extracts. By flashing a burst of light to trigger a startle response, we are able determine whether a given deep sea extract is associated with an atypical photo-motor response. If so, that extract is identified as having a neuroactive behavioural footprint and is set aside for further testing."

Determining a sample's behavioural footprint is the first step in
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Contact: Camila Esguerra
camila.esguerra@pharm.kuleuven.be
32-163-23439
KU Leuven
Source:Eurekalert  

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