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Zhou P, Shen T, Chen W, Sun J, Ling J. Biodegradable Polysarcosine with Inserted Alanine Residues: Synthesis and Enzymolysis. Biomacromolecules 2022; 23:1757-1764. [PMID: 35293717 DOI: 10.1021/acs.biomac.2c00001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Polysarcosine (PSar), a water-soluble polypeptoid, is gifted with biodegradability via the random ring-opening copolymerization of sarcosine- and alanine-N-thiocarboxyanhydrides catalyzed by acetic acid in controlled manners. Kinetic investigation reveals the copolymerization behavior of the two monomers. The random copolymers, named PaS, with high molecular weights between 5.3 and 43.6 kg/mol and tunable Ala molar fractions varying from 6 to 43% can be degraded by porcine pancreatic elastase within 50 days under mild conditions (pH = 8.0 at 37 °C). Both the biodegradation rate and water solubility of PaS depend on the content of Ala residues. PaS with Ala fractions below 43% are soluble in water, while the one with 43% Ala self-assembles in water into nanoparticles. Moreover, PaS are noncytotoxic at the concentration of 5 mg/mL. The biodegradability and biocompatibility endow the Ala-containing PSar with the potential to replace poly(ethylene glycol) as a protective shield in drug-delivery.
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Affiliation(s)
- Peng Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tianlun Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.,Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Wanli Chen
- Center of Analysis & Measurement, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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2
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Moorthy H, Govindaraju T. Dendrimer Architectonics to Treat Cancer and Neurodegenerative Diseases with Implications in Theranostics and Personalized Medicine. ACS APPLIED BIO MATERIALS 2021; 4:1115-1139. [PMID: 35014470 DOI: 10.1021/acsabm.0c01319] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Integration of diagnostic and therapeutic functions in a single platform namely theranostics has become a cornerstone for personalized medicine. Theranostics platform facilitates noninvasive detection and treatment while allowing the monitoring of disease progression and therapeutic efficacy in case of chronic conditions of cancer and Alzheimer's disease (AD). Theranostic tools function by themselves or with the aid of carrier, viz. liposomes, micelles, polymers, or dendrimers. The dendrimer architectures (DA) are well-characterized molecular nanoobjects with a large number of terminal functional groups to enhance solubility and offer multivalency and multifunctional properties. Various noninvasive diagnostic tools like magnetic resonance imaging (MRI), computed tomography (CT), gamma scintigraphy, and optical techniques have been accomplished utilizing DAs for simultaneous imaging and drug delivery. Obstacles in the formulation design, drug loading, payload delivery, biocompatibility, overcoming cellular membrane and blood-brain barrier (BBB), and systemic circulation remain a bottleneck in translational efforts. This review focuses on the diagnostic, therapeutic and theranostic potential of DA-based nanocarriers in treating cancer and neurodegenerative disorders like AD and Parkinson's disease (PD), among others. In view of the inverse relationship between cancer and AD, designing suitable DA-based theranostic nanodrug with high selectivity has tremendous implications in personalized medicine to treat cancer and neurodegenerative disorders.
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Affiliation(s)
- Hariharan Moorthy
- Bioorganic Chemistry Laboratory, New Chemistry Unit and The School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, Karnataka 560064, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit and The School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, Karnataka 560064, India
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3
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Zhang Y, Mesa-Antunez P, Fortuin L, Andrén OCJ, Malkoch M. Degradable High Molecular Weight Monodisperse Dendritic Poly(ethylene glycols). Biomacromolecules 2020; 21:4294-4301. [PMID: 32845125 DOI: 10.1021/acs.biomac.0c01089] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Poly(ethylene glycols) (PEGs) are extensively explored by the pharma industry as foundations for new therapeutic products. PEGs are typically used for their conjugation to active drugs, peptides, and proteins and the likeliness to increase the half-life and enhance the therapeutic outcome. Considering the necessity of batch-to-batch consistency for clinical products, monodisperse PEGs are highly attractive but are generally limited to 5 kDa as an upper molecular weight (Mw) and with an oligomer purity of 95%. By amalgamating short, monodisperse PEGs with dendritic frameworks based on 2,2-bis(methylol)propionic acid polyesters, we showcase a robust synthetic approach to monodisperse PEGs with Mw ranging from 2 to 65 kDa. The latter is, to our knowledge, the highest Mw structure of its kind ever reported. Importantly, the dendritic multifunctional connector facilitated degradability at pH 7.4 at 37 °C, which is an important feature for the delivery of therapeutic agents.
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Affiliation(s)
- Yuning Zhang
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, Stockholm SE-100 44, Sweden
| | - Pablo Mesa-Antunez
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, Stockholm SE-100 44, Sweden
| | - Lisa Fortuin
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, Stockholm SE-100 44, Sweden
| | - Oliver C J Andrén
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, Stockholm SE-100 44, Sweden
| | - Michael Malkoch
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-68, Stockholm SE-100 44, Sweden
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4
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Miele Y, Mingotaud AF, Caruso E, Malacarne MC, Izzo L, Lonetti B, Rossi F. Hybrid giant lipid vesicles incorporating a PMMA-based copolymer. Biochim Biophys Acta Gen Subj 2020; 1865:129611. [PMID: 32272202 DOI: 10.1016/j.bbagen.2020.129611] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/16/2020] [Accepted: 04/02/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND In recent years, there has been a growing interest in the formation of copolymer-lipid hybrid self-assemblies, which allow combining and improving the main features of pure lipid-based and copolymer-based systems known for their potential applications in the biomedical field. As the most common method used to obtain giant vesicles is electroformation, most systems so far used low Tg polymers for their flexibility at room temperature. METHODS Copolymers used in the hybrid vesicles have been synthesized by a modified version of the ATRP, namely the Activators ReGenerated by Electron Transfer ATRP and characterized by NMR and DSC. Giant hybrid vesicles have been obtained using electroformation and droplet transfer method. Confocal fluorescence microscopy was used to image the vesicles. RESULTS Electroformation enabled to obtain hybrid vesicles in a narrow range of compositions (15 mol% was the maximum copolymer content). This range could be extended by the use of a droplet transfer method, which enabled obtaining hybrid vesicles incorporating a methacrylate-based polymer in a wide range of compositions. Proof of the hybrid composition was obtained by fluorescence microscopy using labeled lipids and copolymers. CONCLUSIONS This work describes for the first time, to the best of our knowledge, the formation of giant hybrid polymer/lipid vesicles formed with such a content of a polymethylmethacrylate copolymer, the glass temperature of which is above room temperature. GENERAL SIGNIFICANCE This work shows that polymer structures, more complex than the ones mostly employed, can be possibly included in giant hybrid vesicles by using the droplet transfer method. This will give easier access to functionalized and stimuli-responsive giant vesicles and to systems exhibiting a tunable permeability, these systems being relevant for biological and technological applications.
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Affiliation(s)
- Ylenia Miele
- Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Rte de Narbonne, F-31062 Toulouse cedex 9, France
| | - Enrico Caruso
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, via J. H. Dunant, 3, 21100 Varese, Italy
| | - Miryam C Malacarne
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, via J. H. Dunant, 3, 21100 Varese, Italy
| | - Lorella Izzo
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, via J. H. Dunant, 3, 21100 Varese, Italy.
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 Rte de Narbonne, F-31062 Toulouse cedex 9, France.
| | - Federico Rossi
- Department of Earth, Environmental and Physical Sciences - DEEP Sciences - Pian dei Mantellini 44, 53100 Siena, Italy
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Abstract
In this review we summarize several synthetic approaches to the advanced synthesis of star-like polymer-based drug carriers. Moreover, their application as nanomedicines for therapy or the diagnosis of neoplastic diseases and their biodistribution are reviewed in detail. From a broad spectrum of star-like systems, we focus only on fully water-soluble systems, mainly based on poly(ethylene glycol) or N-(2-hydroxypropyl)methacrylamide polymer and copolymer arms and polyamidoamine dendrimers serving as the core of the star-like systems.
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Affiliation(s)
- L Kotrchová
- Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague 6, Czech Republic.
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Maso K, Grigoletto A, Vicent MJ, Pasut G. Molecular platforms for targeted drug delivery. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 346:1-50. [DOI: 10.1016/bs.ircmb.2019.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Lv X, Zheng X, Yang Z, Jiang ZX. One-pot synthesis of monodisperse dual-functionalized polyethylene glycols through macrocyclic sulfates. Org Biomol Chem 2018; 16:8537-8545. [PMID: 30357237 DOI: 10.1039/c8ob02392a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Dual-functionalization of monodisperse oligoethylene glycols, especially hetero-functionalization, provides a series of highly valuable intermediates for life and materials sciences. However, the existing methods for the preparation of these compounds suffer excessive protecting and activating group manipulation as well as tedious purification. Here, a one-pot dual-substitution strategy with macrocyclic sulfates of polyethylene glycols as the key intermediates was developed for the convenient and scalable preparation of a series of homo-functionalized and hetero-functionalized oligoethylene glycols in just 1 step. A high synthetic efficacy was achieved by avoiding the protecting and activating group manipulation and the intermediate purification.
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Affiliation(s)
- Xiaoyan Lv
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
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8
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Peña-González CE, Pedziwiatr-Werbicka E, Shcharbin D, Guerrero-Beltrán C, Abashkin V, Loznikova S, Jiménez JL, Muñoz-Fernández MÁ, Bryszewska M, Gómez R, Sánchez-Nieves J, de la Mata FJ. Gold nanoparticles stabilized by cationic carbosilane dendrons: synthesis and biological properties. Dalton Trans 2018; 46:8736-8745. [PMID: 28091639 DOI: 10.1039/c6dt03791g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Gold nanoparticles (AuNPs) and polycationic macromolecules are used as gene carriers. Their behaviour is dependent on several factors, such as the size and type of the framework, charge, etc. We have combined both types of systems and prepared AuNPs covered with cationic carbosilane dendrons with the aim to evaluate their biocompatibility. Water soluble dendronized cationic AuNPs were prepared following a straightforward procedure from dendrons, a gold precursor and a reducing agent in water and were characterized by 1H NMR, transmission electron microscopy (TEM), dynamic light scattering (DLS), thermogravimetric analysis (TGA), ultraviolet spectroscopy (UV), and zeta potential (ZP). The biological properties of dendrons and AuNPs were determined by hemolysis, platelet aggregation and lymphocyte proliferation. These assays reflect modification of dendron properties when covering nanoparticles. For dendrons, hemolysis and platelet aggregation are generation dependent whilst, for AuNPs these properties are related to the bigger size of NPs. On the other hand, none of the systems induced lymphocyte proliferation. Selected cationic dendrons and AuNPs were chosen for gene delivery experiments employing a small interference RNA (siRNA Nef) against human immunodeficiency virus (HIV).
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Affiliation(s)
- Cornelia E Peña-González
- Dpto. de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Madrid, Spain.
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9
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Huth K, Glaeske M, Achazi K, Gordeev G, Kumar S, Arenal R, Sharma SK, Adeli M, Setaro A, Reich S, Haag R. Fluorescent Polymer-Single-Walled Carbon Nanotube Complexes with Charged and Noncharged Dendronized Perylene Bisimides for Bioimaging Studies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800796. [PMID: 29870583 DOI: 10.1002/smll.201800796] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/20/2018] [Indexed: 05/28/2023]
Abstract
Fluorescent nanomaterials are expected to revolutionize medical diagnostic, imaging, and therapeutic tools due to their superior optical and structural properties. Their inefficient water solubility, cell permeability, biodistribution, and high toxicity, however, limit the full potential of their application. To overcome these obstacles, a water-soluble, fluorescent, cytocompatible polymer-single-walled carbon nanotube (SWNT) complex is introduced for bioimaging applications. The supramolecular complex consists of an alkylated polymer conjugated with neutral hydroxylated or charged sulfated dendronized perylene bisimides (PBIs) and SWNTs as a general immobilization platform. The polymer backbone solubilizes the SWNTs, decorates them with fluorescent PBIs, and strongly improves their cytocompatibility by wrapping around the SWNT scaffold. In photophysical measurements and biological in vitro studies, sulfated complexes exhibit superior optical properties, cellular uptake, and intracellular staining over their hydroxylated analogs. A toxicity assay confirms the highly improved cytocompatibility of the polymer-wrapped SWNTs toward surfactant-solubilized SWNTs. In microscopy studies the complexes allow for the direct imaging of the SWNTs' cellular uptake via the PBI and SWNT emission using the 1st and 2nd optical window for bioimaging. These findings render the polymer-SWNT complexes with nanometer size, dual fluorescence, multiple charges, and high cytocompatibility as valuable systems for a broad range of fluorescence bioimaging studies.
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Affiliation(s)
- Katharina Huth
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Mareen Glaeske
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Katharina Achazi
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Georgy Gordeev
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Shiv Kumar
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Raúl Arenal
- Institute of Nanoscience of Aragon (INA), Advanced Microscopy Laboratory (LMA), University of Zaragoza, 50018, Zaragoza, Spain
- Foundation ARAID, 50018, Zaragoza, Spain
| | - Sunil K Sharma
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Mohsen Adeli
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
- Department of Chemistry, Faculty of Science, Lorestan University, Khorram Abad, 68151-44316, Iran
| | - Antonio Setaro
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Stephanie Reich
- Department of Physics, Freie Universität Berlin, 14195, Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
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10
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Lin W, Yin L, Sun T, Wang T, Xie Z, Gu J, Jing X. The Effect of Molecular Structure on Cytotoxicity and Antitumor Activity of PEGylated Nanomedicines. Biomacromolecules 2018; 19:1625-1634. [PMID: 29608275 DOI: 10.1021/acs.biomac.8b00083] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fundamental studies on the cellular uptake and drug release of PEGylated nanomedicines are beneficial to understand their fate in vivo and construct ideal nanoparticle formulations. In this work, the detailed metabolic process of PEGylated doxorubicin (Dox) nanomedicines were investigated via confocal laser scanning microscopy (CLSM), flow cytometry (FCM), cytotoxicity test, fluorescence imaging in vivo (FLIV) and liquid chromatography tandem mass spectrometry (LC-MS/MS). Among them, only LC-MS/MS could accurately determine the content of PEGylated Dox and Dox in vitro and in vivo. To the best of our knowledge, this was the first time the PEGylated Dox and released Dox were simultaneously quantified. The interplay of molecular structures, cellular uptake, drug release, and antitumor effect was well characterized. PEG with high molecular weight impeded the cellular uptake of nanoparticles, and the acid-labile hydrazone bond between Dox and PEG promoted Dox release significantly. Cellular uptake and drug release play decisive roles in cytotoxicity and antitumor effect, as evidenced by LC-MS/MS. We emphasized that LC-MS/MS would be a practicable method to quantify PEGylated drugs without complex tags, which could be more in-depth to understand the interaction between PEGylated nanomedicines and their antitumor efficacy.
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Affiliation(s)
- Wenhai Lin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , 5625 Renmin Street , Changchun, Jilin 130022 , People's Republic of China.,University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Lei Yin
- Research Center for Drug Metabolism, College of Life Sciences , Jilin University , Changchun 130012 , People's Republic of China.,Clinical Pharmacology Center, Research Institute of Translational Medicine , The First Hospital of Jilin University , Dongminzhu Street , Changchun 130061 , People's Republic of China
| | - Tingting Sun
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , 5625 Renmin Street , Changchun, Jilin 130022 , People's Republic of China.,University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Tingting Wang
- Research Center for Drug Metabolism, College of Life Sciences , Jilin University , Changchun 130012 , People's Republic of China.,Clinical Pharmacology Center, Research Institute of Translational Medicine , The First Hospital of Jilin University , Dongminzhu Street , Changchun 130061 , People's Republic of China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , 5625 Renmin Street , Changchun, Jilin 130022 , People's Republic of China
| | - Jingkai Gu
- Research Center for Drug Metabolism, College of Life Sciences , Jilin University , Changchun 130012 , People's Republic of China.,Clinical Pharmacology Center, Research Institute of Translational Medicine , The First Hospital of Jilin University , Dongminzhu Street , Changchun 130061 , People's Republic of China
| | - Xiabin Jing
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , 5625 Renmin Street , Changchun, Jilin 130022 , People's Republic of China
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11
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Duan S, Guo L, Shi D, Shang M, Meng D, Li J. Development of a novel folate-modified nanobubbles with improved targeting ability to tumor cells. ULTRASONICS SONOCHEMISTRY 2017; 37:235-243. [PMID: 28427629 DOI: 10.1016/j.ultsonch.2017.01.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/09/2017] [Accepted: 01/09/2017] [Indexed: 06/07/2023]
Abstract
Conjugation of folate (FOL) to nanobubbles could enhance the selective targeting to tumors expressing high levels of folate receptor (FR). To further improve the selective targeting ability of FOL-modified nanobubbles, a novel FOL-targeted nanobubble ((FOL)2-NB) with increasing FOL content (accomplished by linking two FOL molecules per DSPE-PEG2000 chain) was synthesized, through the methods of mechanical shaking and low-speed centrifugation based on lipid-stabilized perfluoropropane. The bubble size and distribution range were measured by dynamic light scattering (DLS). Enhanced imaging ability was evaluated using a custom-made agarose mold with a clinical US imaging system at mechanical indices of up to 0.12 at a center frequency of 9.0MHz. Targeted ability was also carried out in human breast cancer MCF-7 cells, which over-express the FR, by fluorescence activated cell sorting (FACS) and fluorescence microscopy, respectively. (FOL)2-NB with a particle size of 286.87±22.96nm were successfully prepared, and they exhibited superior contrast imaging effect. FACS and fluorescence microscopy studies showed greater cellular targeting ability in the group of (FOL)2-NB than in their control group of Non-targeted-NB (no FOL targeted nanobubbles) and FOL-NB (one FOL molecule per DSPE-PEG2000 chain). These results suggest that a new type of stronger targeted nanobubble was successfully prepared by increasing the FOL content per DSPE-PEG2000 chain. This novel (FOL)2-NBs are potentially useful for ultrasound molecular imaging and treatment of FR-positive tumors and are worthy for further investigation.
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Affiliation(s)
- Sujuan Duan
- Department of Ultrasound, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Lu Guo
- Department of Ultrasound, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Dandan Shi
- Department of Ultrasound, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Mengmeng Shang
- Department of Ultrasound, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Dong Meng
- Department of Ultrasound, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Jie Li
- Department of Ultrasound, Qilu Hospital, Shandong University, Jinan 250012, China.
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12
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Kaufman EA, Tarallo R, Falanga A, Galdiero S, Weck M. Generation effect of Newkome dendrimers on cellular uptake. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Ulbrich K, Holá K, Šubr V, Bakandritsos A, Tuček J, Zbořil R. Targeted Drug Delivery with Polymers and Magnetic Nanoparticles: Covalent and Noncovalent Approaches, Release Control, and Clinical Studies. Chem Rev 2016; 116:5338-431. [DOI: 10.1021/acs.chemrev.5b00589] [Citation(s) in RCA: 1120] [Impact Index Per Article: 140.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Karel Ulbrich
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Kateřina Holá
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Vladimir Šubr
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Aristides Bakandritsos
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Jiří Tuček
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
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15
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Peña-González CE, García-Broncano P, Ottaviani MF, Cangiotti M, Fattori A, Hierro-Oliva M, González-Martín ML, Pérez-Serrano J, Gómez R, Muñoz-Fernández MÁ, Sánchez-Nieves J, de la Mata FJ. Dendronized Anionic Gold Nanoparticles: Synthesis, Characterization, and Antiviral Activity. Chemistry 2016; 22:2987-99. [PMID: 26875938 DOI: 10.1002/chem.201504262] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Indexed: 12/23/2022]
Abstract
Anionic carbosilane dendrons decorated with sulfonate functions and one thiol moiety at the focal point have been used to synthesize water-soluble gold nanoparticles (AuNPs) through the direct reaction of dendrons, gold precursor, and reducing agent in water, and also through a place-exchange reaction. These nanoparticles have been characterized by NMR spectroscopy, TEM, thermogravimetric analysis, X-ray photoelectron spectroscopy (XPS), UV/Vis spectroscopy, elemental analysis, and zeta-potential measurements. The interacting ability of the anionic sulfonate functions was investigated by EPR spectroscopy with copper(II) as a probe. Different structures and conformations of the AuNPs modulate the availability of sulfonate and thiol groups for complexation by copper(II). Toxicity assays of AuNPs showed that those produced through direct reaction were less toxic than those obtained by ligand exchange. Inhibition of HIV-1 infection was higher in the case of dendronized AuNPs than in dendrons.
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Affiliation(s)
- Cornelia E Peña-González
- Dpto. de Química Orgánica y Química Inorgánica, Edificio de Farmacia, Universidad de Alcalá, Campus Universitario, Alcalá de Henares (Madrid), Spain
| | - Pilar García-Broncano
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Campus Majadahonda, Madrid, Spain.,Laboratorio de InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Spanish HIV HGM BioBank, Madrid, Spain
| | - M Francesca Ottaviani
- Department of Earth, Life and Environment Sciences, University of Urbino, Urbino, 61029, Italy
| | - Michela Cangiotti
- Department of Earth, Life and Environment Sciences, University of Urbino, Urbino, 61029, Italy
| | - Alberto Fattori
- Department of Earth, Life and Environment Sciences, University of Urbino, Urbino, 61029, Italy
| | - Margarita Hierro-Oliva
- Departamento de Física Aplicada, Facultad de Ciencias, Campus Universitario, Universidad de Extremadura, Badajoz, Spain.,Networking Research Center for Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - M Luisa González-Martín
- Departamento de Física Aplicada, Facultad de Ciencias, Campus Universitario, Universidad de Extremadura, Badajoz, Spain.,Networking Research Center for Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Jorge Pérez-Serrano
- Departamento de Biomedicina y Biotecnología, Edificio de Farmacia, Campus Universitario, Universidad de Alcalá, 28871, Alcalá de Henares, Spain
| | - Rafael Gómez
- Dpto. de Química Orgánica y Química Inorgánica, Edificio de Farmacia, Universidad de Alcalá, Campus Universitario, Alcalá de Henares (Madrid), Spain.,Networking Research Center for Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - M Ángeles Muñoz-Fernández
- Laboratorio de InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Spanish HIV HGM BioBank, Madrid, Spain.,Networking Research Center for Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Sánchez-Nieves
- Dpto. de Química Orgánica y Química Inorgánica, Edificio de Farmacia, Universidad de Alcalá, Campus Universitario, Alcalá de Henares (Madrid), Spain. .,Networking Research Center for Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - F Javier de la Mata
- Dpto. de Química Orgánica y Química Inorgánica, Edificio de Farmacia, Universidad de Alcalá, Campus Universitario, Alcalá de Henares (Madrid), Spain. .,Networking Research Center for Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain.
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16
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Grillaud M, Ruiz de Garibay AP, Bianco A. Polycationic adamantane-based dendrons form nanorods in complex with plasmid DNA. RSC Adv 2016. [DOI: 10.1039/c6ra01281g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Different HYDRAmers are synthesized and complexed to a model plasmid DNA. Appropriate chemical modifications can improve efficiently the complexation to get HYDRAplexes, in form of long nanorods, with very good DNA binding and protecting properties.
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Affiliation(s)
- Maxime Grillaud
- CNRS
- Institut de Biologie Moléculaire et Cellulaire
- Immunopathologie et Chimie Thérapeutique
- 67000 Strasbourg
- France
| | - Aritz Perez Ruiz de Garibay
- CNRS
- Institut de Biologie Moléculaire et Cellulaire
- Immunopathologie et Chimie Thérapeutique
- 67000 Strasbourg
- France
| | - Alberto Bianco
- CNRS
- Institut de Biologie Moléculaire et Cellulaire
- Immunopathologie et Chimie Thérapeutique
- 67000 Strasbourg
- France
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17
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Wan Z, Li Y, Bo S, Gao M, Wang X, Zeng K, Tao X, Li X, Yang Z, Jiang ZX. Amide bond-containing monodisperse polyethylene glycols beyond 10 000 Da. Org Biomol Chem 2016; 14:7912-9. [DOI: 10.1039/c6ob01286h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Monodisperse polyethylene glycols above 4000 Da, including the longest one to date (10 262 Da), can be prepared from oligoethylene glycol-containing ω-amino acids through solid phase synthesis.
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Affiliation(s)
- Zihong Wan
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Yu Li
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Shaowei Bo
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Ming Gao
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Xuemeng Wang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Kai Zeng
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Xin Tao
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Xuefei Li
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Zhigang Yang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
| | - Zhong-Xing Jiang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals and School of Pharmaceutical Sciences
- Wuhan University
- Wuhan 430071
- China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
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18
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Herzberger J, Niederer K, Pohlit H, Seiwert J, Worm M, Wurm FR, Frey H. Polymerization of Ethylene Oxide, Propylene Oxide, and Other Alkylene Oxides: Synthesis, Novel Polymer Architectures, and Bioconjugation. Chem Rev 2015; 116:2170-243. [PMID: 26713458 DOI: 10.1021/acs.chemrev.5b00441] [Citation(s) in RCA: 442] [Impact Index Per Article: 49.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The review summarizes current trends and developments in the polymerization of alkylene oxides in the last two decades since 1995, with a particular focus on the most important epoxide monomers ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO). Classical synthetic pathways, i.e., anionic polymerization, coordination polymerization, and cationic polymerization of epoxides (oxiranes), are briefly reviewed. The main focus of the review lies on more recent and in some cases metal-free methods for epoxide polymerization, i.e., the activated monomer strategy, the use of organocatalysts, such as N-heterocyclic carbenes (NHCs) and N-heterocyclic olefins (NHOs) as well as phosphazene bases. In addition, the commercially relevant double-metal cyanide (DMC) catalyst systems are discussed. Besides the synthetic progress, new types of multifunctional linear PEG (mf-PEG) and PPO structures accessible by copolymerization of EO or PO with functional epoxide comonomers are presented as well as complex branched, hyperbranched, and dendrimer like polyethers. Amphiphilic block copolymers based on PEO and PPO (Poloxamers and Pluronics) and advances in the area of PEGylation as the most important bioconjugation strategy are also summarized. With the ever growing toolbox for epoxide polymerization, a "polyether universe" may be envisaged that in its structural diversity parallels the immense variety of structural options available for polymers based on vinyl monomers with a purely carbon-based backbone.
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Affiliation(s)
- Jana Herzberger
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany
| | - Kerstin Niederer
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Hannah Pohlit
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany.,Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany.,Department of Dermatology, University Medical Center , Langenbeckstraße 1, D-55131 Mainz, Germany
| | - Jan Seiwert
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Matthias Worm
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany
| | - Frederik R Wurm
- Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany.,Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany
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19
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Russier J, Grillaud M, Bianco A. Elucidation of the Cellular Uptake Mechanisms of Polycationic HYDRAmers. Bioconjug Chem 2015; 26:1484-93. [DOI: 10.1021/acs.bioconjchem.5b00270] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Julie Russier
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France
| | - Maxime Grillaud
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 67000 Strasbourg, France
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20
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Zhang H, Li X, Shi Q, Li Y, Xia G, Chen L, Yang Z, Jiang ZX. Highly Efficient Synthesis of Monodisperse Poly(ethylene glycols) and Derivatives through Macrocyclization of Oligo(ethylene glycols). Angew Chem Int Ed Engl 2015; 54:3763-7. [DOI: 10.1002/anie.201410309] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/08/2014] [Indexed: 12/21/2022]
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21
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Thakur S, Kesharwani P, Tekade RK, Jain NK. Impact of pegylation on biopharmaceutical properties of dendrimers. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.051] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Zhang H, Li X, Shi Q, Li Y, Xia G, Chen L, Yang Z, Jiang ZX. Highly Efficient Synthesis of Monodisperse Poly(ethylene glycols) and Derivatives through Macrocyclization of Oligo(ethylene glycols). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Zheng Y, Li S, Weng Z, Gao C. Hyperbranched polymers: advances from synthesis to applications. Chem Soc Rev 2015; 44:4091-130. [DOI: 10.1039/c4cs00528g] [Citation(s) in RCA: 498] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the advances in hyperbranched polymers from the viewpoint of structure, click synthesis and functionalization towards their applications in the last decade.
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Affiliation(s)
- Yaochen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Sipei Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhulin Weng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
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24
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Synthesis and characterization of monodisperse poly(ethylene glycol)-conjugated collagen pentapeptides with collagen biosynthesis-stimulating activity. Bioorg Med Chem Lett 2015; 25:38-42. [DOI: 10.1016/j.bmcl.2014.11.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Revised: 09/23/2014] [Accepted: 11/07/2014] [Indexed: 11/22/2022]
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25
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Gao J, Chen P, Singh Y, Zhang X, Szekely Z, Stein S, Sinko PJ. Novel monodisperse PEGtide dendrons: design, fabrication, and evaluation of mannose receptor-mediated macrophage targeting. Bioconjug Chem 2014; 24:1332-44. [PMID: 23808323 DOI: 10.1021/bc400011v] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Novel PEGtide dendrons of generations 1 through 5 (G1.0–5.0) containing alternating discrete poly(ethylene glycol) (dPEG) and amino acid/peptide moieties were designed and developed. To demonstrate their targeting utility as nanocarriers, PEGtide dendrons functionalized with mannose residues were developed and evaluated for macrophage targeting. PEGtide dendrons were synthesized using 9-fluorenylmethyloxycarbonyl (Fmoc) solid-phase peptide synthesis (SPPS) protocols. The N-α-Fmoc-N-ε-(5-carboxyfluorescein)-l-lysine (Fmoc-Lys(5-FAM)-OH) and monodisperse Fmoc-dPEG6-OH were sequentially coupled to Fmoc-β-Ala-resin to obtain the resin-bound intermediate Fmoc-dPEG6-Lys(5-FAM)-β-Ala (1). G1.0 dendrons were obtained by sequentially coupling Fmoc-Lys(Fmoc)-OH, Fmoc-β-Ala-OH, and Fmoc-dPEG6-OH to 1. Dendrons of higher generation, G2.0–5.0, were obtained by repeating the coupling cycles used for the synthesis of G1.0. Dendrons containing eight mannose residues (G3.0-mannose8) were developed for mannose receptor (MR) mediated macrophage targeting by conjugating α-d-mannopyranosylphenyl isothiocyanate to G3.0 dendrons. In the present study PEGtide dendrons up to G5.0 were synthesized. The molecular weights of the dendrons determined by MALDI-TOF were in agreement with calculated values. The hydrodynamic diameters measured using dynamic light scattering (DLS) ranged from 1 to 8 nm. Cell viability in the presence of G3.0 and G3.0-mannose8 was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and was found to be statistically indistinguishable from that of untreated cells. G3.0-mannose8 exhibited 12-fold higher uptake than unmodified G3.0 control dendrons in MR-expressing J774.E murine macrophage-like cells. Uptake was nearly completely inhibited in the presence of 10 mg/mL mannan, a mannose analogue and known MR substrate. Confocal microscopy studies demonstrated the presence of significant intracellular punctate fluorescence colocalized with a fluid endocytosis marker with little surface fluorescence in cells incubated with G3.0-mannose8. No significant cell-associated fluorescence was observed in cells incubated with G3.0 dendrons that did not contain the targeting ligand mannose. The current studies suggest that PEGtide dendrons could be useful as nanocarriers in drug delivery and imaging applications.
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26
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Grillaud M, Russier J, Bianco A. Polycationic Adamantane-Based Dendrons of Different Generations Display High Cellular Uptake without Triggering Cytotoxicity. J Am Chem Soc 2014; 136:810-9. [DOI: 10.1021/ja411987g] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Maxime Grillaud
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, Strasbourg, France
| | - Julie Russier
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, Strasbourg, France
| | - Alberto Bianco
- CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, Strasbourg, France
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27
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Sokolovskaya E, Yoon J, Misra AC, Bräse S, Lahann J. Controlled Microstructuring of Janus Particles Based on a Multifunctional Poly(ethylene glycol). Macromol Rapid Commun 2013; 34:1554-9. [DOI: 10.1002/marc.201300427] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 07/14/2013] [Indexed: 12/13/2022]
Affiliation(s)
- Ekaterina Sokolovskaya
- Institute of Functional Interfaces (IFG); Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1; 76344; Eggenstein-Leopoldshafen; Germany
| | - Jaewon Yoon
- Biointerfaces Institute, Chemical Engineering, Biomedical Engineering and Macromolecular Science and Engineering; University of Michigan; 2800 Plymouth Rd.; Ann Arbor; MI; USA
| | - Asish C. Misra
- Biointerfaces Institute, Chemical Engineering, Biomedical Engineering and Macromolecular Science and Engineering; University of Michigan; 2800 Plymouth Rd.; Ann Arbor; MI; USA
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28
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Polypeptoids by Living Ring-Opening Polymerization of N-Substituted N-Carboxyanhydrides from Solid Supports. Macromol Rapid Commun 2013; 34:997-1001. [DOI: 10.1002/marc.201300269] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 04/03/2013] [Indexed: 12/21/2022]
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29
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Kim AJ, Boylan NJ, Suk JS, Hwangbo M, Yu T, Schuster BS, Cebotaru L, Lesniak WG, Oh JS, Adstamongkonkul P, Choi AY, Kannan RM, Hanes J. Use of single-site-functionalized PEG dendrons to prepare gene vectors that penetrate human mucus barriers. Angew Chem Int Ed Engl 2013; 52:3985-8. [PMID: 23460577 PMCID: PMC3782282 DOI: 10.1002/anie.201208556] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Anthony J. Kim
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
- Department of Chemical & Biomolecular Engineering Johns Hopkins University, Baltimore (USA)
| | - Nicholas J. Boylan
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
- Department of Chemical & Biomolecular Engineering Johns Hopkins University, Baltimore (USA)
| | - Jung Soo Suk
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore (USA)
| | - Minyoung Hwangbo
- Department of Chemical & Biomolecular Engineering Johns Hopkins University, Baltimore (USA)
| | - Tao Yu
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore (USA)
| | - Benjamin S. Schuster
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore (USA)
| | - Liudimila Cebotaru
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
| | - Wojciech G. Lesniak
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
| | - Joon Seok Oh
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore (USA)
| | | | - Ashley Y. Choi
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
| | - Rangaramanujam M. Kannan
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
| | - Justin Hanes
- Departments of Ophthalmology, Biomedical Engineering, Chemical & Biomolecular Engineering and Oncology, Center for Cancer Nanotechnology Excellence, and Center for Nanomedicine, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231 (USA)
- The Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University, Baltimore (USA)
- Department of Chemical & Biomolecular Engineering Johns Hopkins University, Baltimore (USA)
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore (USA)
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30
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Fuentes-Paniagua E, Peña-González CE, Galán M, Gómez R, de la Mata FJ, Sánchez-Nieves J. Thiol-Ene Synthesis of Cationic Carbosilane Dendrons: a New Family of Synthons. Organometallics 2013. [DOI: 10.1021/om301217g] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Elena Fuentes-Paniagua
- Departamento de Quı́mica Orgánica
y Quı́mica
Inorgánica and ‡Networking Research Center for Bioengineering,
Biomaterials and Nanomedicine (CIBER-BBN), Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Cornelia E. Peña-González
- Departamento de Quı́mica Orgánica
y Quı́mica
Inorgánica and ‡Networking Research Center for Bioengineering,
Biomaterials and Nanomedicine (CIBER-BBN), Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Marta Galán
- Departamento de Quı́mica Orgánica
y Quı́mica
Inorgánica and ‡Networking Research Center for Bioengineering,
Biomaterials and Nanomedicine (CIBER-BBN), Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Rafael Gómez
- Departamento de Quı́mica Orgánica
y Quı́mica
Inorgánica and ‡Networking Research Center for Bioengineering,
Biomaterials and Nanomedicine (CIBER-BBN), Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - F. Javier de la Mata
- Departamento de Quı́mica Orgánica
y Quı́mica
Inorgánica and ‡Networking Research Center for Bioengineering,
Biomaterials and Nanomedicine (CIBER-BBN), Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
| | - Javier Sánchez-Nieves
- Departamento de Quı́mica Orgánica
y Quı́mica
Inorgánica and ‡Networking Research Center for Bioengineering,
Biomaterials and Nanomedicine (CIBER-BBN), Universidad de Alcalá, Campus Universitario,
E-28871 Alcalá de Henares (Madrid), Spain
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31
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Kim AJ, Boylan NJ, Suk JS, Hwangbo M, Yu T, Schuster BS, Cebotaru L, Lesniak WG, Oh JS, Adstamongkonkul P, Choi AY, Kannan RM, Hanes J. Use of Single-Site-Functionalized PEG Dendrons To Prepare Gene Vectors that Penetrate Human Mucus Barriers. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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32
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Lo ST, Kumar A, Hsieh JT, Sun X. Dendrimer nanoscaffolds for potential theranostics of prostate cancer with a focus on radiochemistry. Mol Pharm 2013; 10:793-812. [PMID: 23294202 DOI: 10.1021/mp3005325] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Dendrimers are a class of structurally defined macromolecules featured with a central core, a low-density interior formed by repetitive branching units, and a high-density exterior terminated with surface functional groups. In contrast to their polymeric counterparts, dendrimers are nanosized and symmetrically shaped, which can be reproducibly synthesized on a large scale with monodispersity. These unique features have made dendrimers of increasing interest for drug delivery and other biomedical applications as nanoscaffold systems. Intended to address the potential use of dendrimers for the development of theranostic agents, which combines therapeutics and diagnostics in a single entity for personalized medicine, this review focuses on the reported methodologies of using dendrimer nanoscaffolds for targeted imaging and therapy of prostate cancer. Of particular interest, relevant chemistry strategies are discussed due to their important roles in the design and synthesis of diagnostic and therapeutic dendrimer-based nanoconjugates and potential theranostic agents, targeted or nontargeted. Given the developing status of nanoscaffolded theranostics, major challenges and potential hurdles are discussed along with the examples representing current advances.
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Affiliation(s)
- Su-Tang Lo
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
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33
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Zhang L, Klein BD, Metcalf CS, Smith MD, McDougle DR, Lee HK, White HS, Bulaj G. Incorporation of monodisperse oligoethyleneglycol amino acids into anticonvulsant analogues of galanin and neuropeptide y provides peripherally acting analgesics. Mol Pharm 2013; 10:574-85. [PMID: 23259957 DOI: 10.1021/mp300236v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Delivery of neuropeptides into the central and/or peripheral nervous systems supports development of novel neurotherapeutics for the treatment of pain, epilepsy and other neurological diseases. Our previous work showed that the combination of lipidization and cationization applied to anticonvulsant neuropeptides galanin (GAL) and neuropeptide Y (NPY) improved their penetration across the blood-brain barrier yielding potent antiepileptic lead compounds, such as Gal-B2 (NAX 5055) or NPY-B2. To dissect peripheral and central actions of anticonvulsant neuropeptides, we rationally designed, synthesized and characterized GAL and NPY analogues containing monodisperse (discrete) oligoethyleneglycol-lysine (dPEG-Lys). The dPEGylated analogues Gal-B2-dPEG(24), Gal-R2-dPEG(24) and NPY-dPEG(24) displayed analgesic activities following systemic administration, while avoiding penetration into the brain. Gal-B2-dPEG(24) was synthesized by a stepwise deprotection of orthogonal 4-methoxytrityl and allyloxycarbonyl groups, and subsequent on-resin conjugations of dPEG(24) and palmitic acids, respectively. All the dPEGylated analogues exhibited substantially decreased hydrophobicity (expressed as logD values), increased in vitro serum stabilities and pronounced analgesia in the formalin and carrageenan inflammatory pain assays following systemic administration, while lacking apparent antiseizure activities. These results suggest that discrete PEGylation of neuropeptides offers an attractive strategy for developing neurotherapeutics with restricted penetration into the central nervous system.
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Affiliation(s)
- Liuyin Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah , Salt Lake City, Utah 84108, United States
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Greco F, Arif I, Botting R, Fante C, Quintieri L, Clementi C, Schiavon O, Pasut G. Polysialic acid as a drug carrier: evaluation of a new polysialic acid–epirubicin conjugate and its comparison against established drug carriers. Polym Chem 2013. [DOI: 10.1039/c2py20876h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dingels C, Frey H. From Biocompatible to Biodegradable: Poly(Ethylene Glycol)s with Predetermined Breaking Points. HIERARCHICAL MACROMOLECULAR STRUCTURES: 60 YEARS AFTER THE STAUDINGER NOBEL PRIZE II 2013. [DOI: 10.1007/12_2013_235] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Quadir MA, Haag R. Biofunctional nanosystems based on dendritic polymers. J Control Release 2012; 161:484-95. [DOI: 10.1016/j.jconrel.2011.12.040] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/28/2011] [Accepted: 12/29/2011] [Indexed: 11/30/2022]
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Arseneault M, Levesque I, Morin JF. Efficient and Rapid Divergent Synthesis of Ethylene Oxide-Containing Dendrimers through Catalyst-Free Click Chemistry. Macromolecules 2012. [DOI: 10.1021/ma300648r] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mathieu Arseneault
- Département de chimie
and Centre de Recherche
sur les Matériaux Avancés (CERMA), 1045 Ave de la Médecine, Université Laval, Québec, Canada G1V
0A6
| | - Isabelle Levesque
- Département de chimie
and Centre de Recherche
sur les Matériaux Avancés (CERMA), 1045 Ave de la Médecine, Université Laval, Québec, Canada G1V
0A6
| | - Jean-François Morin
- Département de chimie
and Centre de Recherche
sur les Matériaux Avancés (CERMA), 1045 Ave de la Médecine, Université Laval, Québec, Canada G1V
0A6
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Harada A, Kato T, Kawamura A, Kojima C, Kono K. Effect of Enzyme Modification by Well-Defined Multi-Armed Poly(Ethylene Glycol) Synthesized Using Polyamidoamine Dendron. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1551-61. [DOI: 10.1163/092050610x514557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Atsushi Harada
- a Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.
| | - Takeshi Kato
- b Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Akifumi Kawamura
- c Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Chie Kojima
- d Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kenji Kono
- e Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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Jiang G, Xia W, Chen W. A Hyperbranched Polymer for Encapsulation and Release of Guest Molecules. Des Monomers Polym 2012. [DOI: 10.1163/138577209x12486896623616] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Guohua Jiang
- a Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Zhejiang Sci-Tech University, Ministry of Education, Hangzhou 310018, P. R. China; Department of Materials Engineering, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Wei Xia
- b Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Zhejiang Sci-Tech University, Ministry of Education, Hangzhou 310018, P. R. China; Department of Materials Engineering, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Wenxing Chen
- c Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Zhejiang Sci-Tech University, Ministry of Education, Hangzhou 310018, P. R. China; Department of Materials Engineering, College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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Seo K, Chung SW, Byun Y, Kim D. Paclitaxel loaded nano-aggregates based on pH sensitive polyaspartamide amphiphilic graft copolymers. Int J Pharm 2012; 424:26-32. [DOI: 10.1016/j.ijpharm.2011.12.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 11/30/2011] [Accepted: 12/25/2011] [Indexed: 10/14/2022]
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Sulistio A, Lowenthal J, Blencowe A, Bongiovanni MN, Ong L, Gras SL, Zhang X, Qiao GG. Folic acid conjugated amino acid-based star polymers for active targeting of cancer cells. Biomacromolecules 2011; 12:3469-77. [PMID: 21854075 DOI: 10.1021/bm200604h] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Amino acid-based core cross-linked star (CCS) polymers (poly(L-lysine)(arm)poly(L-cystine)(core)) with peripheral allyl functionalities were synthesized by sequential ring-opening polymerization (ROP) of amino acid N-carboxyanhydrides (NCAs) via the arm-first approach, using N-(trimethylsilyl)allylamine as the initiator. Subsequent functionalization with a poly(ethylene glycol) (PEG)-folic acid conjugate via thiol-ene click chemistry afforded poly(PEG-b-L-lysine)(arm)poly(L-cystine)(core) stars with outer PEG coronas decorated with folic acid targeting moieties. Similarly, a control was prepared without folic acid, using just PEG. A fluorophore was used to track both star polymers incubated with breast cancer cells (MDA-MB-231) in vitro. Confocal microscopy and flow cytometry revealed that the stars could be internalized into the cells, and higher cell internalization was observed when folic acid moieties were present. Cytotoxicity studies indicate that both stars are nontoxic to MDA-MB-231 cells at concentrations of up to 50 μg/mL. These results make this amino acid-based star polymer an attractive candidate in targeted drug delivery applications including chemotherapy.
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Affiliation(s)
- Adrian Sulistio
- Department of Chemical and Biomolecular Engineering, University of Melbourne, Parkville, Melbourne, VIC 3010, Australia
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Obermeier B, Wurm F, Mangold C, Frey H. Multifunctional Poly(ethylene glycol)s. Angew Chem Int Ed Engl 2011; 50:7988-97. [DOI: 10.1002/anie.201100027] [Citation(s) in RCA: 158] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Indexed: 11/10/2022]
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Obermeier B, Wurm F, Mangold C, Frey H. Multifunktionelle Poly(ethylenglycole). Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Obermeier B, Frey H. Poly(ethylene glycol-co-allyl glycidyl ether)s: A PEG-Based Modular Synthetic Platform for Multiple Bioconjugation. Bioconjug Chem 2011; 22:436-44. [DOI: 10.1021/bc1004747] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Boris Obermeier
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
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PAMAM dendrimer with a 1,2-diaminoethane surface facilitates endosomal escape for enhanced pDNA delivery. POLYMER 2011. [DOI: 10.1016/j.polymer.2010.10.066] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Zhou Y, Huang W, Liu J, Zhu X, Yan D. Self-assembly of hyperbranched polymers and its biomedical applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:4567-4590. [PMID: 20853374 DOI: 10.1002/adma.201000369] [Citation(s) in RCA: 428] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Hyperbranched polymers (HBPs) are highly branched macromolecules with a three-dimensional dendritic architecture. Due to their unique topological structure and interesting physical/chemical properties, HBPs have attracted wide attention from both academia and industry. In this paper, the recent developments in HBP self-assembly and their biomedical applications have been comprehensively reviewed. Many delicate supramolecular structures from zero-dimension (0D) to three-dimension (3D), such as micelles, fibers, tubes, vesicles, membranes, large compound vesicles and physical gels, have been prepared through the solution or interfacial self-assembly of amphiphilic HBPs. In addition, these supramolecular structures have shown promising applications in the biomedical areas including drug delivery, protein purification/detection/delivery, gene transfection, antibacterial/antifouling materials and cytomimetic chemistry. Such developments promote the interdiscipline researches among surpramolecular chemistry, biomedical chemistry, nano-technology and functional materials.
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Affiliation(s)
- Yongfeng Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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Affiliation(s)
- George R. Newkome
- Departments of Polymer Science and Chemistry, University of Akron, Akron, Ohio 44325-4717, and Department of Chemistry, Hiram College, Hiram, Ohio 44234
| | - Carol Shreiner
- Departments of Polymer Science and Chemistry, University of Akron, Akron, Ohio 44325-4717, and Department of Chemistry, Hiram College, Hiram, Ohio 44234
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Wang P, Zhao XH, Wang ZY, Meng M, Li X, Ning Q. Generation 4 polyamidoamine dendrimers is a novel candidate of nano-carrier for gene delivery agents in breast cancer treatment. Cancer Lett 2010; 298:34-49. [PMID: 20594639 DOI: 10.1016/j.canlet.2010.06.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 06/01/2010] [Accepted: 06/02/2010] [Indexed: 10/19/2022]
Abstract
Polyamidoamine dendrimer (PAMAM-D) is a new gene vector developed in recent years. In this study, we successfully prepared G4PAMAM and detected its unique structure by NMR, FITR and TEM. We revealed that G4PAMAM could bind to human erythrocytes and BSA through electrostatic interaction respectively, and caused haemolysis and reduced bioavailability. However, G4PAMAM-VEGF-ASODN (antisense oligodeoxynucleotides) complex could prevent G4PAMAM from binding to the erythrocytes and BSA and remained stable as a conjugate, therefore the toxicity of the complex was reduced. Meanwhile, we showed that G4PAMAM could be used as a gene vector to deliver AODNs into breast cancer MDA-MB-231 cells without significant cell toxicity, and it enhanced cellular uptake of ODNs. In vivo experiment of human breast tumor xenograft mice model, G4PAMAM also showed more efficiency of accumulating VEGF-ASODN to inhibit the tumor vascularization of breast tumor tissue than naked AODN. Furthermore, G4PAMAM could protect DNA in cytoplasm from digestion of restriction enzymes, which was important to become an effective tool in gene research and therapy.
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Affiliation(s)
- Pei Wang
- Department of Oncology, The First Hospital Affiliated to School of Medicine of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
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