Abstract
This review describes the strategy for the development of multifunctional dendrimeric and hyperbranched polymers, collectively named dendritic polymers, aiming at their application as drug and gene delivery systems. Employing well-characterized and mainly commercially available dendritic polymers, the functionalization of these polymers is aimed at providing drug carriers of low toxicity, high encapsulating capacity, specificity to certain type of cells and transport ability through their membranes. Following a step-wise functionalization strategy of the starting dendritic polymers one has the option to prepare products that fulfill one or more of these requirements. In particular, in addition to polyvalency which is a common feature of the dendritic polymers, these carriers bearing a number of targeting ligands exhibit specificity to certain cells, another type of groups secures stability in biological milieu and prolonged circulation, while other moieties facilitate their transport through cell membranes. Furthermore, dendritic polymers applied for gene delivery should be or become cationic in the biological environment for the formation of complexes with the negatively charged genetic material.
Keywords: Dendrimers, hyperbranched polymers, dendritic polymers, nanocarriers, drug delivery system, gene delivery
Current Topics in Medicinal Chemistry
Title: Multifunctional Dendritic Drug Delivery Systems: Design, Synthesis, Controlled and Triggered Release
Volume: 8 Issue: 14
Author(s): Constantinos M. Paleos, Dimitris Tsiourvas, Zili Sideratou and Leto Tziveleka
Affiliation:
Keywords: Dendrimers, hyperbranched polymers, dendritic polymers, nanocarriers, drug delivery system, gene delivery
Abstract: This review describes the strategy for the development of multifunctional dendrimeric and hyperbranched polymers, collectively named dendritic polymers, aiming at their application as drug and gene delivery systems. Employing well-characterized and mainly commercially available dendritic polymers, the functionalization of these polymers is aimed at providing drug carriers of low toxicity, high encapsulating capacity, specificity to certain type of cells and transport ability through their membranes. Following a step-wise functionalization strategy of the starting dendritic polymers one has the option to prepare products that fulfill one or more of these requirements. In particular, in addition to polyvalency which is a common feature of the dendritic polymers, these carriers bearing a number of targeting ligands exhibit specificity to certain cells, another type of groups secures stability in biological milieu and prolonged circulation, while other moieties facilitate their transport through cell membranes. Furthermore, dendritic polymers applied for gene delivery should be or become cationic in the biological environment for the formation of complexes with the negatively charged genetic material.
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Paleos M. Constantinos, Tsiourvas Dimitris, Sideratou Zili and Tziveleka Leto, Multifunctional Dendritic Drug Delivery Systems: Design, Synthesis, Controlled and Triggered Release, Current Topics in Medicinal Chemistry 2008; 8 (14) . https://dx.doi.org/10.2174/156802608785848996
DOI https://dx.doi.org/10.2174/156802608785848996 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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