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[Drug delivery to the brain with nanoparticles].
R N Aliautdin1, J Kreuter, D A Kharkevich
1Sechenov Medical Academy, ul. Bol'shaya Pirogovskaya 2/6, Moscow, 119881 Russia.
Eksperimental'Naia I Klinicheskaia Farmakologiia
|September 10, 2003
Summary
Poly(butylcyanoacrylate) nanoparticles coated with polysorbate 80 effectively deliver drugs across the blood-brain barrier (BBB). These nanoparticles utilize apolipoprotein interactions to enter brain endothelial cells via endocytosis, enabling targeted drug delivery.
Area of Science:
- Nanomedicine
- Neuroscience
- Biotechnology
Context:
- The blood-brain barrier (BBB) poses a significant challenge for delivering therapeutics to the brain.
- Poly(butylcyanoacrylate) (PBCA) nanoparticles offer a potential solution for drug delivery.
- Polysorbate 80 coating enhances nanoparticle interaction with biological systems.
Purpose:
- To investigate the efficacy of polysorbate 80-coated poly(butylcyanoacrylate) (PBCA) nanoparticles for drug delivery across the BBB.
- To elucidate the mechanism by which these nanoparticles penetrate the BBB and enter brain endothelial cells.
Summary:
- Polysorbate 80-coated PBCA nanoparticles can successfully cross the BBB.
- These nanoparticles can deliver various drug types, including peptides, hydrophilic, and lipophilic compounds.
- The delivery mechanism involves the adsorption of blood apolipoproteins onto the nanoparticle surface, followed by interaction with low-density lipoprotein receptors on brain endothelial cells, triggering endocytosis.
Impact:
- This nanoparticle system provides a promising strategy for targeted drug delivery to the brain.
- It facilitates the transport of a wide range of therapeutic agents, overcoming previous delivery limitations.
- The understanding of the endocytosis mechanism can inform the design of future brain-targeting nanocarriers.