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Preparation and Evaluation of Folate Receptor Mediated Targeting Liposomes

  • Wei Gao
Living reference work entry
First Online:
Part of the Biomaterial Engineering book series (BIOENG)

Abstract

Liposomes have been well used as an efficient delivery system for cancer therapy. Overexpressed folate receptor is a confirmed tumor-associated antigen that binds folate and folate-targeted liposomes with very high affinity. Folate receptor shuttles these bound molecules inside cells via an endocytic mechanism. It is described as an efficient folate-modified liposome preparation method in this chapter based on a post-insertion technique. Conjugate of 1,2-dipalmitoyl-sn-glycerophosphoethanolamine-polyethylene glycol-folate (DPPE-PEG-folate), derived from PEG with molecular masses of 2000 Da, is synthesized and characterized by 1H NMR and mass spectrometer. By micellization of folate conjugates and their controlled insertion into preformed liposomes, DOX-loaded folate-targeted liposome is prepared. The selectivity and specificity of folate target liposome is evaluated in KB, C6, and cortical cells. It was found that KB cells took up significant amounts of DOX relative to the C6 cells or relative to normal cortical tissue.

Keywords

Folate Ligand-modified targeting liposome Cancer Drug delivery Post-insertion 
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Copyright information

© Springer-Verlag GmbH Germany 2018

Authors and Affiliations

  1. 1.Department of Industrial and Physical Pharmacy, College of PharmacyPurdue UniversityWest LafayetteUSA

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