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Researchers show that lipid nanoparticles are ideal for delivering genes and drugs
Date:2/28/2013

y, and they have in fact managed to develop a vector capable of making a protein express itself in the eyes of rats after ocular delivery.The work has produced two patents and various papers published in top scientific journals, like Human Gene Therapy.

Aim:to improve drug absorption

Another application of lipid nanoparticles is to develop new formulations to deliver drugs that are not particularly soluble or which are difficult to absorb.Dr Rodriguez explained the problem with these drugs:"40% of the new pharmacologically active molecules are reckoned to be insoluble or not very soluble in water; that prevents many of these potentially active molecules from ever reaching the clinic because of the problems involved in developing a safe, effective formulation."

The Faculty of Pharmacy's research team has shown that the strategy of encapsulating drugs of this type in lipid nanoparticles is effective:"They are spheres made of lipids and they have very small particleswhich encase the drug.That way, the absorption of the drug given orally can be increased," points out Dr Rodriguez.

Part of the research was done in collaboration with the research team led by DrVroniquePrat, of the Catholic University of Louvain in Belgium.There they studied the capacity of the nanoparticles to pass through the intestinal barrier and therefore increase the permeability of the drug.The results of this work have been published in the Journal of Controlled Release, a leading journal within the specialty.

Furthermore, while considerable advances have been made in both areas (vectors for gene therapy and improvement in insoluble drug absorption), the researchers in the Pharmacokinetics, Nanotechnology and Gene Therapy team are working in a third area linked to hepatitis C in which they also hope to achieve positive results.
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Contact: Aitziber Lasa
a.lasa@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert  

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