The effect of functionalizing lipid nanocapsules with NFL-TBS.40-63 peptide on their uptake by glioblastoma cells.

Abstract

We previously described a neurofilament derived cell-penetrating peptide, NFL-TBS.40-63, that specifically enters in glioblastoma cells where it disturbs the microtubule network both in vitro and in vivo. The aim of this study is to test whether this peptide can increase the targeted uptake by glioblastoma cells of lipid nanocapsules filled with Paclitaxel, and thus can increase their anti-proliferation in vitro and in vivo. Here, using the drop tensiometry we show that approximately 60 NFL-TBS.40-63 peptides can bind to one 50 nm lipid nanocapsule. When nanocapsules are filled with a far-red fluorochrome (DiD) and Paclitaxel, the presence of the NFL-TBS.40-63 peptide increases their uptake by glioblastoma cells in culture as evaluated by FACS analysis, and thus reduces their proliferation. Finally, when such nanocapsules were injected in mice bearing a glioma tumour, they are preferentially targeted to the tumour and reduce its progression. These results show that nanocapsules functionalized with the NFL-TBS.40-63 peptide represent a powerful drug-carrier system for glioma targeted treatment.

• Authors: Julien Balzeau, Maud Pinier, Raphael Berges, Patrick Saulnier, Jean-Pierre Benoit, Joel Eyer
• Journal: Biomaterials (Biomaterials) Vol. 34 Issue 13 Pg. 3381-9 (Apr 2013) ISSN: 1878-5905 [Electronic] Netherlands
• PMID: 23391494 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2013 Elsevier Ltd. All rights reserved.

Chemical References

• Lipids
• NFL-TBS.40-63 peptide
• Nanocapsules
• Neurofilament Proteins
• Peptide Fragments
• Paclitaxel

Topics

• Animals
• Astrocytes (drug effects, metabolism, pathology)
• Brain (drug effects, pathology)
• Brain Neoplasms (metabolism, pathology)
• Cell Death (drug effects)
• Cell Line, Tumor
• Cell Survival (drug effects)
• Female
• Glioblastoma (metabolism, pathology)
• Lipids (chemistry)
• Mice
• Mice, Inbred C57BL
• Nanocapsules (chemistry)
• Neurofilament Proteins (pharmacology)
• Paclitaxel (pharmacology)
• Peptide Fragments (pharmacology)
• Protein Binding (drug effects)