Abstract
Liposomes, that are biodegradable and essentially non-toxic, can encapsulate both hydrophilic and hydrophobic materials, and are utilized as drug carriers for drug delivery systems (DDS). Recent progress in gene technology provides a novel modality of therapy for various diseases with a variety of newlydeveloped cationic liposomes. Delivery of agents to the reticuloendothelial system (RES) is easily achieved since most conventional liposomes are trapped by the RES. For the purpose of delivery of agents to target organs other than RES, long-circulating liposomes have been developed by modifying the liposomal surface. Understanding of the in vivo dynamics of liposome-carried agents is required to evaluate the bioavailability of drugs encapsulated in liposomes. In this review, we focus on the in vivo trafficking of liposomes visualized by positron emission tomography (PET) and discuss the characteristics of liposomes that affect the targeting of drugs in vivo.
Current Pharmaceutical Design
Title: Evaluation of Drug Targeting Strategies and Liposomal Trafficking
Volume: 6 Issue: 16
Author(s): Naoto Oku, Yoshihiro Tokudome, Tomohiro Asai and Hideo Tsukada
Affiliation:
Abstract: Liposomes, that are biodegradable and essentially non-toxic, can encapsulate both hydrophilic and hydrophobic materials, and are utilized as drug carriers for drug delivery systems (DDS). Recent progress in gene technology provides a novel modality of therapy for various diseases with a variety of newlydeveloped cationic liposomes. Delivery of agents to the reticuloendothelial system (RES) is easily achieved since most conventional liposomes are trapped by the RES. For the purpose of delivery of agents to target organs other than RES, long-circulating liposomes have been developed by modifying the liposomal surface. Understanding of the in vivo dynamics of liposome-carried agents is required to evaluate the bioavailability of drugs encapsulated in liposomes. In this review, we focus on the in vivo trafficking of liposomes visualized by positron emission tomography (PET) and discuss the characteristics of liposomes that affect the targeting of drugs in vivo.
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Cite this article as:
Oku Naoto, Tokudome Yoshihiro, Asai Tomohiro and Tsukada Hideo, Evaluation of Drug Targeting Strategies and Liposomal Trafficking, Current Pharmaceutical Design 2000; 6 (16) . https://dx.doi.org/10.2174/1381612003398816
DOI https://dx.doi.org/10.2174/1381612003398816 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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