201
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Silvestri A, Polito L, Bellani G, Zambelli V, Jumde RP, Psaro R, Evangelisti C. Gold nanoparticles obtained by aqueous digestive ripening: Their application as X-ray contrast agents. J Colloid Interface Sci 2015; 439:28-33. [DOI: 10.1016/j.jcis.2014.10.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 12/22/2022]
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202
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Li D, Wen S, Shi X. Dendrimer-entrapped metal colloids as imaging agents. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 7:678-90. [PMID: 25641958 DOI: 10.1002/wnan.1331] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 11/09/2014] [Accepted: 12/05/2014] [Indexed: 01/23/2023]
Abstract
This review reports the recent advances in dendrimer-entrapped metal colloids as contrast agents for biomedical imaging applications. The versatile dendrimer scaffolds with 3-dimensional spherical shape, highly branched internal cavity, tunable surface conjugation chemistry, and excellent biocompatibility and nonimmunogenicity afford their uses as templates to create multifunctional dendrimer-entrapped metal colloids for mono- or multi- mode molecular imaging applications. In particular, multifunctional dendrimer-entrapped gold nanoparticles with different surface modifications have been used for fluorescence imaging, targeted tumor computed tomography (CT) imaging, enhanced blood pool CT imaging, dual mode CT/MR imaging, and tumor theranostics (combined CT imaging and chemotherapy) will be introduced and discussed in detail.
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Affiliation(s)
- Du Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, People's Republic of China
| | - Shihui Wen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, People's Republic of China.,College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
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203
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Du Y, Xing M, Li Z, Guo W. PEGylated Gd(OH)3 nanorods as metabolizable contrast agents for computed tomography imaging. NEW J CHEM 2015. [DOI: 10.1039/c5nj01980j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PEGylated Gd(OH)3 nanorods have been efficiently prepared via a facile and green hydrothermal route and used as a metabolizable computed tomography contrast agent for in vivo imaging.
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Affiliation(s)
- Yingda Du
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- National Engineering Laboratory for AIDS Vaccine
- and School of Life Science
- Jilin University
| | - Ming Xing
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- National Engineering Laboratory for AIDS Vaccine
- and School of Life Science
- Jilin University
| | - Zhiman Li
- Laboratory Animal Center of Jilin University
- Changchun 130021
- P. R. China
| | - Wei Guo
- National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- National Engineering Laboratory for AIDS Vaccine
- and School of Life Science
- Jilin University
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204
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Zhu J, Xiong Z, Shen M, Shi X. Encapsulation of doxorubicin within multifunctional gadolinium-loaded dendrimer nanocomplexes for targeted theranostics of cancer cells. RSC Adv 2015. [DOI: 10.1039/c5ra01215e] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multifunctional gadolinium-loaded dendrimer nanocomplexes can be used to encapsulate doxorubicin for targeted magnetic resonance imaging and chemotherapy of cancer cells.
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Affiliation(s)
- Jingyi Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Zhijuan Xiong
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Mingwu Shen
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- People's Republic of China
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205
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Cao Y, He Y, Liu H, Luo Y, Shen M, Xia J, Shi X. Targeted CT imaging of human hepatocellular carcinoma using low-generation dendrimer-entrapped gold nanoparticles modified with lactobionic acid. J Mater Chem B 2015; 3:286-295. [DOI: 10.1039/c4tb01542h] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Dendrimer-entrapped gold nanoparticles formed using low-generation dendrimers modified with PEGylated lactobionic acid as templates enable targeted CT imaging of human hepatocellular carcinoma.
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Affiliation(s)
- Yiyun Cao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Yao He
- Department of Radiology
- Shanghai Songjiang District Central Hospital
- Shanghai 201600
- People's Republic of China
| | - Hui Liu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Yu Luo
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Mingwu Shen
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Jindong Xia
- Department of Radiology
- Shanghai Songjiang District Central Hospital
- Shanghai 201600
- People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- People's Republic of China
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206
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Liu L, Zhao Y, Chen Q, Shi X, Shen M. The assembly of polyethyleneimine-entrapped gold nanoparticles onto filter paper for catalytic applications. RSC Adv 2015. [DOI: 10.1039/c5ra20192f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polyethyleneimine-entrapped gold nanoparticles can be assembled onto filter paper via electrostatic interaction for high-performance catalytic applications.
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Affiliation(s)
- Lei Liu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Yili Zhao
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Qian Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Xiangyang Shi
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
| | - Mingwu Shen
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- People's Republic of China
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207
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Wu L, Yang C, Lv Z, Cui F, Zhao L, Yang P. Facile one-pot synthesis of different surfactant-functionalized water-soluble Fe3O4 nanoparticles as magnetic resonance imaging contrast agents for melanoma tumors. RSC Adv 2015. [DOI: 10.1039/c4ra05786d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile and efficient one-pot solvothermal strategy is described to synthesize Fe3O4 nanoparticles (NPs) modified with sodium citrate, polyvinylpyrrolidone and l-asparagine for in vivo magnetic resonance (MR) imaging of melanoma cells.
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Affiliation(s)
- Longyun Wu
- Key Laboratory of Automobile Materials (Jilin University)
- Ministry of Education and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
| | - ChunYan Yang
- Department of Cardiology
- Department of Radiology
- China-Japan Union Hospital
- Jilin University
- Changchun
| | - Zhongwen Lv
- Department of Radiology
- China-Japan Union Hospital
- Jilin University
- Changchun 130033
- China
| | - FengWen Cui
- Department of Cardiology
- Department of Radiology
- China-Japan Union Hospital
- Jilin University
- Changchun
| | - Lijun Zhao
- Key Laboratory of Automobile Materials (Jilin University)
- Ministry of Education and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
| | - Ping Yang
- Department of Cardiology
- Department of Radiology
- China-Japan Union Hospital
- Jilin University
- Changchun
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208
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He X, Alves CS, Oliveira N, Rodrigues J, Zhu J, Bányai I, Tomás H, Shi X. RGD peptide-modified multifunctional dendrimer platform for drug encapsulation and targeted inhibition of cancer cells. Colloids Surf B Biointerfaces 2015; 125:82-9. [PMID: 25437067 DOI: 10.1016/j.colsurfb.2014.11.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Revised: 10/26/2014] [Accepted: 11/03/2014] [Indexed: 02/08/2023]
Abstract
Development of multifunctional nanoscale drug-delivery systems for targeted cancer therapy still remains a great challenge. Here, we report the synthesis of cyclic arginine-glycine-aspartic acid (RGD) peptide-conjugated generation 5 (G5) poly(amidoamine) dendrimers for anticancer drug encapsulation and targeted therapy of cancer cells overexpressing αvβ3 integrins. In this study, amine-terminated G5 dendrimers were used as a platform to be sequentially modified with fluorescein isothiocyanate (FI) via a thiourea linkage and RGD peptide via a polyethylene glycol (PEG) spacer, followed by acetylation of the remaining dendrimer terminal amines. The developed multifunctional dendrimer platform (G5.NHAc-FI-PEG-RGD) was then used to encapsulate an anticancer drug doxorubicin (DOX). We show that approximately six DOX molecules are able to be encapsulated within each dendrimer platform. The formed complexes are water-soluble, stable, and able to release DOX in a sustained manner. One- and two-dimensional NMR techniques were applied to investigate the interaction between dendrimers and DOX, and the impact of the environmental pH on the release rate of DOX from the dendrimer/DOX complexes was also explored. Furthermore, cell biological studies demonstrate that the encapsulation of DOX within the G5.NHAc-FI-PEG-RGD dendrimers does not compromise the anticancer activity of DOX and that the therapeutic efficacy of the dendrimer/DOX complexes is solely related to the encapsulated DOX drug. Importantly, thanks to the role played by RGD-mediated targeting, the developed dendrimer/drug complexes are able to specifically target αvβ3 integrin-overexpressing cancer cells and display specific therapeutic efficacy to the target cells. The developed RGD peptide-targeted multifunctional dendrimers may thus be used as a versatile platform for targeted therapy of different types of αvβ3 integrin-overexpressing cancer cells.
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Affiliation(s)
- Xuedan He
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal
| | - Carla S Alves
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal
| | - Nilsa Oliveira
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal
| | - João Rodrigues
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal
| | - Jingyi Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - István Bányai
- Department of Colloid and Environmental Chemistry, Faculty of Science, University of Debrecen, H4032 Egyetem t.1, Debrecen, Hungary.
| | - Helena Tomás
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal.
| | - Xiangyang Shi
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China.
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209
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Li J, Hu Y, Yang J, Wei P, Sun W, Shen M, Zhang G, Shi X. Hyaluronic acid-modified Fe3O4@Au core/shell nanostars for multimodal imaging and photothermal therapy of tumors. Biomaterials 2015; 38:10-21. [DOI: 10.1016/j.biomaterials.2014.10.065] [Citation(s) in RCA: 289] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 10/19/2014] [Indexed: 10/24/2022]
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210
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Wu D, Song L, Qi Z, Qu D. One-pot and facile synthesis of anti-biofouling polymer-modified gadolinium-based nanoprobes for dual-modal imaging and long-lasting tracking. NEW J CHEM 2015. [DOI: 10.1039/c5nj00150a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PEGylated gadolinium hydroxycarbonate nanoparticles have been designed and synthesized via a one-pot facile route and successfully applied as high-performance dual-modal contrast agents for X-ray CT and MR imaging.
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Affiliation(s)
- Di Wu
- Color Ultrasonic Room
- Affiliated Hospital of Chifeng University
- Chifeng 024005
- China
| | - Lingling Song
- Coordination Administration Office
- Affiliated Hospital of Chifeng University
- Chifeng 024005
- China
| | - Zhenping Qi
- CT Room
- Affiliated Hospital of Chifeng University
- Chifeng 024005
- China
| | - Dapeng Qu
- Coordination Administration Office
- Affiliated Hospital of Chifeng University
- Chifeng 024005
- China
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211
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Ba Z, Zhang Y, Wei J, Han J, Wang Z, Shao G. Large-scale synthesis of PEGylated lutetium hydroxycarbonates as nanoparticulate contrast agents for X-ray CT imaging. NEW J CHEM 2015. [DOI: 10.1039/c4nj01524j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PEGylated lutetium hydroxycarbonate nanoparticles have been prepared via a large-scale strategy and successfully used as high-performance contrast agents for X-ray computed tomography imaging with neglectable systemic toxicity.
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Affiliation(s)
- Zhaogui Ba
- Department of Radiology
- The Second Hospital of Shandong University
- Shandong University
- Jinan
- P. R. China
| | - Yumin Zhang
- Department of Radiology
- Laigang Hospital Affiliated to Taishan Medical University
- Laiwu
- P. R. China
| | - Junpei Wei
- Department of Radiology
- People's Hospital of Xintai City
- Xintai
- P. R. China
| | - Jiwu Han
- Department of Radiology
- Laigang Hospital Affiliated to Taishan Medical University
- Laiwu
- P. R. China
| | - Zhenqiang Wang
- Department of Radiology
- Laigang Hospital Affiliated to Taishan Medical University
- Laiwu
- P. R. China
| | - Guangrui Shao
- Department of Radiology
- The Second Hospital of Shandong University
- Shandong University
- Jinan
- P. R. China
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212
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Kalhapure RS, Suleman N, Mocktar C, Seedat N, Govender T. Nanoengineered drug delivery systems for enhancing antibiotic therapy. J Pharm Sci 2014; 104:872-905. [PMID: 25546108 DOI: 10.1002/jps.24298] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/07/2014] [Accepted: 11/07/2014] [Indexed: 12/12/2022]
Abstract
Formulation scientists are recognizing nanoengineered drug delivery systems as an effective strategy to overcome limitations associated with antibiotic drug therapy. Antibiotics encapsulated into nanodelivery systems will contribute to improved management of patients with various infectious diseases and to overcoming the serious global burden of antibiotic resistance. An extensive review of several antibiotic-loaded nanocarriers that have been formulated to target drugs to infectious sites, achieve controlled drug release profiles, and address formulation challenges, such as low-drug entrapment efficiencies, poor solubility and stability is presented in this paper. The physicochemical properties and the in vitro/in vivo performances of various antibiotic-loaded delivery systems, such as polymeric nanoparticles, micelles, dendrimers, liposomes, solid lipid nanoparticles, lipid-polymer hybrid nanoparticles, nanohybirds, nanofibers/scaffolds, nanosheets, nanoplexes, and nanotubes/horn/rods and nanoemulsions, are highlighted and evaluated. Future studies that will be essential to optimize formulation and commercialization of these antibiotic-loaded nanosystems are also identified. The review presented emphasizes the significant formulation progress achieved and potential that novel nanoengineered antibiotic drug delivery systems have for enhancing the treatment of patients with a range of infections.
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Affiliation(s)
- Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
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213
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Chen M, Tang S, Guo Z, Wang X, Mo S, Huang X, Liu G, Zheng N. Core-shell Pd@Au nanoplates as theranostic agents for in-vivo photoacoustic imaging, CT imaging, and photothermal therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:8210-8216. [PMID: 25363309 DOI: 10.1002/adma.201404013] [Citation(s) in RCA: 285] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/29/2014] [Indexed: 06/04/2023]
Abstract
Uniform plasmonic Pd@Au core-shell bimetallic nanoplates are synthesized by seeded growth strategy. Surface modified with SH-PEG makes it good biocompatibility, prolonged blood circulation, and relatively high tumor accumulation. Enhanced tumor contrast effects can be obtained for in vivo photoacoustic/CT imaging after intravenous injection of Pd@Au-PEG. Moreover, efficient photothermal tumor ablation is achieved, guided by the imaging techniques. This work promises further exploration of the superiority of 2D nanostructures for in vivo biomedical applications.
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Affiliation(s)
- Mei Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P.R. China
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214
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Qin J, Peng C, Zhao B, Ye K, Yuan F, Peng Z, Yang X, Huang L, Jiang M, Zhao Q, Tang G, Lu X. Noninvasive detection of macrophages in atherosclerotic lesions by computed tomography enhanced with PEGylated gold nanoparticles. Int J Nanomedicine 2014; 9:5575-90. [PMID: 25506213 PMCID: PMC4260660 DOI: 10.2147/ijn.s72819] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Macrophages are becoming increasingly significant in the progression of atherosclerosis (AS). Molecular imaging of macrophages may improve the detection and characterization of AS. In this study, dendrimer-entrapped gold nanoparticles (Au DENPs) with polyethylene glycol (PEG) and fluorescein isothiocyanate (FI) coatings were designed, tested, and applied as contrast agents for the enhanced computed tomography (CT) imaging of macrophages in atherosclerotic lesions. Cell counting kit-8 assay, fluorescence microscopy, silver staining, and transmission electron microscopy revealed that the FI-functionalized Au DENPs are noncytotoxic at high concentrations (3.0 μM) and can be efficiently taken up by murine macrophages in vitro. These nanoparticles were administered to apolipoprotein E knockout mice as AS models, which demonstrated that the macrophage burden in atherosclerotic areas can be tracked noninvasively and dynamically three-dimensionally in live animals using micro-CT. Our findings suggest that the designed PEGylated gold nanoparticles are promising biocompatible nanoprobes for the CT imaging of macrophages in atherosclerotic lesions and will provide new insights into the pathophysiology of AS and other concerned inflammatory diseases.
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Affiliation(s)
- Jinbao Qin
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Chen Peng
- Department of Radiology, Shanghai Tenth People's Hospital Affiliated to Tongji University, School of Medicine, Shanghai, People's Republic of China
| | - Binghui Zhao
- Department of Radiology, Shanghai Tenth People's Hospital Affiliated to Tongji University, School of Medicine, Shanghai, People's Republic of China
| | - Kaichuang Ye
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Fukang Yuan
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Zhiyou Peng
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Xinrui Yang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Lijia Huang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Mier Jiang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China
| | - Qinghua Zhao
- Department of Orthopaedics, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Guangyu Tang
- Department of Radiology, Shanghai Tenth People's Hospital Affiliated to Tongji University, School of Medicine, Shanghai, People's Republic of China
| | - Xinwu Lu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai JiaoTong University, School of Medicine, Shanghai, People's Republic of China ; Vascular Center of Shanghai JiaoTong University, Shanghai, People's Republic of China
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215
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Lim EK, Kim T, Paik S, Haam S, Huh YM, Lee K. Nanomaterials for Theranostics: Recent Advances and Future Challenges. Chem Rev 2014; 115:327-94. [DOI: 10.1021/cr300213b] [Citation(s) in RCA: 916] [Impact Index Per Article: 91.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Eun-Kyung Lim
- Department
of Radiology, Yonsei University, Seoul 120-752, Korea
- BioNanotechnology
Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
| | - Taekhoon Kim
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
- Electronic
Materials Laboratory, Samsung Advanced Institute of Technology, Mt. 14-1,
Nongseo-Ri, Giheung-Eup, Yongin-Si, Gyeonggi-Do 449-712, Korea
| | - Soonmyung Paik
- Severance
Biomedical Research Institute, Yonsei University College of Medicine, Seoul 120-749, Korea
- Division
of Pathology, NSABP Foundation, Pittsburgh, Pennsylvania 15212, United States
| | - Seungjoo Haam
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
| | - Yong-Min Huh
- Department
of Radiology, Yonsei University, Seoul 120-752, Korea
| | - Kwangyeol Lee
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
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216
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Zhou B, Zheng L, Peng C, Li D, Li J, Wen S, Shen M, Zhang G, Shi X. Synthesis and characterization of PEGylated polyethylenimine-entrapped gold nanoparticles for blood pool and tumor CT imaging. ACS APPLIED MATERIALS & INTERFACES 2014; 6:17190-9. [PMID: 25208617 DOI: 10.1021/am505006z] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The synthesis and characterization of gold nanoparticles (AuNPs) entrapped within polyethylene glycol (PEG)-modified polyethylenimine (PEI) for blood pool and tumor computed tomography (CT) imaging are reported. In this approach, partially PEGylated PEI was used as a template for AuNP synthesis, followed by acetylating the PEI remaining surface amines. The synthesized PEGylated PEI-entrapped AuNPs (Au PENPs) were characterized via different methods. Our results reveal that the synthesized Au PENPs can be tuned to have an Au core size in a range of 1.9-4.6 nm and to be water-soluble, stable, and noncytotoxic in a studied concentration range. With a demonstrated better X-ray attenuation property than that of clinically used iodinated small molecular contrast agent (e.g., Omnipaque) and the prolonged half-decay time (11.2 h in rat) confirmed by pharmacokinetics studies, the developed PEGylated Au PENPs enabled efficient and enhanced blood pool CT imaging with imaging time up to 75 min. Likewise, thanks to the enhanced permeability and retention effect, the PEGylated Au PENPs were also able to be used as a contrast agent for effective CT imaging of a tumor model. With the proven organ biocompatibility by histological studies, the designed PEGylated Au PENPs may hold great promise to be used as contrast agents for CT imaging of a variety of biological systems. The significance of this study is that rather than the use of dendrimers as templates, cost-effective branched polymers (e.g., PEI) can be used as templates to generate functionalized AuNPs for CT imaging applications.
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Affiliation(s)
- Benqing Zhou
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, People's Republic of China
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217
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Wen S, Zhao Q, An X, Zhu J, Hou W, Li K, Huang Y, Shen M, Zhu W, Shi X. Multifunctional PEGylated multiwalled carbon nanotubes for enhanced blood pool and tumor MR imaging. Adv Healthc Mater 2014; 3:1568-77, 1525. [PMID: 24665035 DOI: 10.1002/adhm.201300631] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/16/2014] [Indexed: 11/10/2022]
Abstract
Long-circulating multifunctional Gd(III)-loaded multiwalled carbon nanotubes (MWCNTs) modified with polyethylene glycol are designed and synthesized. The formed MWCNTs are water-dispersible, stable, and have good cytocompatibility and antifouling property. With the low r 2 /r 1 relaxivity ratio and relatively long blood circulation time, the multifunctional MWCNTs are able to be used as a platform for enhanced blood pool and tumor MR imaging.
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Affiliation(s)
- Shihui Wen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 China
| | - Qinghua Zhao
- Department of Orthopedics; Shanghai First People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai 200080 China
| | - Xiao An
- Department of Radiology; Shanghai First People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai 200080 China
| | - Jingyi Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
| | - Wenxiu Hou
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 China
| | - Kai Li
- Department of Orthopedics; Shanghai First People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai 200080 China
| | - Yunpeng Huang
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 China
| | - Mingwu Shen
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 China
| | - Wei Zhu
- Department of Orthopedics; Changzheng Hospital; Second Military Medical University; Shanghai 200003 China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 China
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218
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Contrast agents for preclinical targeted X-ray imaging. Adv Drug Deliv Rev 2014; 76:116-133. [PMID: 25086373 DOI: 10.1016/j.addr.2014.07.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 07/08/2014] [Accepted: 07/22/2014] [Indexed: 11/20/2022]
Abstract
Micro-computed tomography (micro-CT) is an X-ray based instrument that it is specifically designed for biomedical research at a preclinical stage for live imaging of small animals. This imaging modality is cost-effective, fast, and produces remarkable high-resolution images of X-ray opaque skeleton. Administration of biocompatible X-ray opaque contrast agent allows delineation of the blood vessels, and internal organs and even detection of tumor metastases as small as 300 μm. However, the main limitation of micro-CT lies in the poor efficacy or toxicity of the contrast agents. Moreover, contrast agents for micro-CT have to be stealth nanoparticulate systems, i.e. preventing their rapid renal clearance. The chemical composition and physicochemical properties will condition their uptake and elimination pathways, and therefore all the biological fluids, organs, and tissues trough this elimination route of the nanoparticles will be contrasted. Furthermore, several technologies playing on the nanoparticle properties, aim to influence these biological pathways in order to induce their accumulation onto given targeted sites, organs of tumors. In function of the methodologies carried out, taking benefit or not of the action of immune system, of the natural response of the organism like hepatocyte uptake or enhanced permeation and retention effect, or even accumulation due to ligand/receptor interactions, the technologies are called passive or active targeted imaging. The present review presents the most recent advances in the development of specific contrast agents for targeted X-ray imaging micro-CT, discussing the recent advance of in vivo targeting of nanoparticulate contrast agents, and the influence of the formulations, nature of the nanocarrier, nature and concentration of the X-ray contrasting materials, effect of the surface properties, functionalization and bioconjugation. The pharmacokinetic and versatility of nanometric systems appear particularly advantageous for addressing the versatile biomedical research needs. State of the art investigations are on going to propose contrast agents with tumor accumulating properties and will contribute for development of safer cancer medicine having detection and therapeutic modalities.
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219
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Ye K, Qin J, Peng Z, Yang X, Huang L, Yuan F, Peng C, Jiang M, Lu X. Polyethylene glycol-modified dendrimer-entrapped gold nanoparticles enhance CT imaging of blood pool in atherosclerotic mice. NANOSCALE RESEARCH LETTERS 2014; 9:529. [PMID: 25288918 PMCID: PMC4184899 DOI: 10.1186/1556-276x-9-529] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/20/2014] [Indexed: 05/25/2023]
Abstract
We report a new use of dendrimer-entrapped gold nanoparticles (Au DENPs) modified by polyethylene glycol (PEG) with good biocompatibility for in vitro and in vivo imaging of atherosclerotic mice by computed tomography (CT). In this study, Au DENPs were synthesized using poly(amidoamine) (PAMAM) dendrimers of generation 5 (G5.NH2) modified by PEG monomethyl ether (G5.NH2-mPEG20) as templates. In vitro cytotoxicity and flow cytometry assays show that the formed PEGylated Au DENPs have good biocompatibility and are non-cytotoxic at the Au concentration up to 300 μM. Silver staining and transmission electron microscopy (TEM) further confirm that the Au DENPs are able to be uptaken by macrophages and are located dominantly in the lysosomes of the cells. Importantly, the formed PEGylated Au DENPs are able to be used for CT imaging of murine macrophages in vitro and macrophages in atherosclerotic mice in vivo using apolipoprotein-E-gene-deficient mice as a model. These findings suggest that the formed PEGylated Au DENPs are a promising contrast agent for CT imaging of atherosclerosis.
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Affiliation(s)
- Kaichuang Ye
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Jinbao Qin
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Zhiyou Peng
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Xinrui Yang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Lijia Huang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Fukang Yuan
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Chen Peng
- Department of Radiology, Shanghai Tenth People's Hospital Affiliated to Tongji University, School of Medicine, Shanghai 200072, People's Republic of China
| | - Mier Jiang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
- Vascular Center of Shanghai Jiao Tong University, Shanghai 200011, People's Republic of China
| | - Xinwu Lu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
- Vascular Center of Shanghai Jiao Tong University, Shanghai 200011, People's Republic of China
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220
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Fu F, Wu Y, Zhu J, Wen S, Shen M, Shi X. Multifunctional lactobionic acid-modified dendrimers for targeted drug delivery to liver cancer cells: investigating the role played by PEG spacer. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16416-16425. [PMID: 25185074 DOI: 10.1021/am504849x] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report the development of a lactobionic acid (LA)-modified multifunctional dendrimer-based carrier system for targeted therapy of liver cancer cells overexpressing asialoglycoprotein receptors. In this study, generation 5 (G5) poly(amidoamine) (PAMAM) dendrimers were sequentially modified with fluorescein isothiocyanate (FI) and LA (or polyethylene glycol (PEG)-linked LA, PEG-LA), followed by acetylation of the remaining dendrimer terminal amines. The synthesized G5.NHAc-FI-LA or G5.NHAc-FI-PEG-LA conjugates (NHAc denotes acetamide groups) were used to encapsulate a model anticancer drug doxorubicin (DOX). We show that both conjugates are able to encapsulate approximately 5.0 DOX molecules within each dendrimer and the formed dendrimer/DOX complexes are stable under different pH conditions and different aqueous media. The G5.NHAc-FI-PEG-LA conjugate appears to have a better cytocompatibility, enables a slightly faster DOX release rate, and displays better liver cancer cell targeting ability than the G5.NHAc-FI-LA conjugate without PEG under similar experimental conditions. Importantly, the developed G5.NHAc-FI-PEG-LA/DOX complexes are able to specifically inhibit the growth of the target cells with a better efficiency than the G5.NHAc-FI-LA/DOX complexes at a relatively high DOX concentration. Our results suggest a key role played by the PEG spacer that affords the dendrimer platform with enhanced targeting and therapeutic efficacy of cancer cells. The developed LA-modified multifunctional dendrimer conjugate with a PEG spacer may be used as a delivery system for targeted liver cancer therapy and offers new opportunities in the design of multifunctional drug carriers for targeted cancer therapy applications.
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Affiliation(s)
- Fanfan Fu
- College of Chemistry, Chemical Engineering and Biotechnology, and ‡State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China
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221
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Cormode DP, Naha PC, Fayad ZA. Nanoparticle contrast agents for computed tomography: a focus on micelles. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 9:37-52. [PMID: 24470293 DOI: 10.1002/cmmi.1551] [Citation(s) in RCA: 198] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 05/15/2013] [Accepted: 05/28/2013] [Indexed: 12/23/2022]
Abstract
Computed tomography (CT) is an X-ray-based whole-body imaging technique that is widely used in medicine. Clinically approved contrast agents for CT are iodinated small molecules or barium suspensions. Over the past seven years there has been a great increase in the development of nanoparticles as CT contrast agents. Nanoparticles have several advantages over small molecule CT contrast agents, such as long blood-pool residence times and the potential for cell tracking and targeted imaging applications. Furthermore, there is a need for novel CT contrast agents, owing to the growing population of renally impaired patients and patients hypersensitive to iodinated contrast. Micelles and lipoproteins, a micelle-related class of nanoparticle, have notably been adapted as CT contrast agents. In this review we discuss the principles of CT image formation and the generation of CT contrast. We discuss the progress in developing nontargeted, targeted and cell tracking nanoparticle CT contrast agents. We feature agents based on micelles and used in conjunction with spectral CT. The large contrast agent doses needed will necessitate careful toxicology studies prior to clinical translation. However, the field has seen tremendous advances in the past decade and we expect many more advances to come in the next decade.
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Affiliation(s)
- David P Cormode
- Departments of Radiology, University of Pennsylvania, 3400 Spruce St, 1 Silverstein, Philadelphia, PA, 19104, USA
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222
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A facile strategy to functionalize gold nanorods with polycation brushes for biomedical applications. Acta Biomater 2014; 10:3786-94. [PMID: 24814878 DOI: 10.1016/j.actbio.2014.05.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/16/2014] [Accepted: 05/01/2014] [Indexed: 11/22/2022]
Abstract
The fabrication of highly efficient nonviral gene carriers with low cytotoxicity remains a challenge in gene therapy. This paper reports a facile strategy to combine the advantages of gold nanorods (Au NRs) and polycations through surface functionalization. Different Au NR carriers with a controlled amount of poly(2-(N,N-dimethyl amino)ethyl methacrylate) (PDAEMA) brushes could be readily synthesized via surface-initiated atom transfer radical polymerization to achieve optimized nanohybrids for gene transfection. The obtained gene carriers demonstrate much higher gene transfection efficiency and lower cytotoxicity compared with polyethylenimine (∼25kDa, gold standard of nonviral gene vector) in both COS7 and HepG2 cell lines. In addition, the potential of the PDMAEMA-grafted Au NR carriers to be utilized as a computed tomography contrast agent for the imaging of cancer cells has also been investigated. This strategy may realize the gene therapy and real-time imaging within one nanostructure and facilitate biomedical applications.
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223
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Karunamuni R, Maidment ADA. Search for novel contrast materials in dual-energy x-ray breast imaging using theoretical modeling of contrast-to-noise ratio. Phys Med Biol 2014; 59:4311-24. [DOI: 10.1088/0031-9155/59/15/4311] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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224
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De La Vega JC, Häfeli UO. Utilization of nanoparticles as X-ray contrast agents for diagnostic imaging applications. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 10:81-95. [PMID: 25044541 DOI: 10.1002/cmmi.1613] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 06/02/2014] [Accepted: 06/04/2014] [Indexed: 12/25/2022]
Abstract
Among all the diagnostic imaging modalities, X-ray imaging techniques are the most commonly used owing to their high resolution and low cost. The improvement of these techniques relies heavily on the development of novel X-ray contrast agents, which are molecules that enhance the visibility of internal structures within the body in X-ray imaging. To date, clinically used X-ray contrast agents consist mainly of small iodinated molecules that might cause severe adverse effects (e.g. allergies, cardiovascular diseases and nephrotoxicity) in some patients owing to the large and repeated doses that are required to achieve good contrast. For this reason, there is an increasing interest in the development of alternative X-ray contrast agents utilizing elements with high atomic numbers (e.g. gold, bismuth, ytterbium and tantalum), which are well known for exhibiting high absorption of X-rays. Nanoparticles (NPs) made from these elements have been reported to have better imaging properties, longer blood circulation times and lower toxicity than conventional iodinated X-ray contrast agents. Additionally, the combination of two or more of these elements into a single carrier allows for the development of multimodal and hybrid contrast agents. Herein, the limitations of iodinated X-ray contrast agents are discussed and the parameters that influence the efficacy of X-ray contrast agents are summarized. Several examples of the design and production of both iodinated and iodine-free NP-based X-ray contrast agents are then provided, emphasizing the studies performed to evaluate their X-ray attenuation capabilities and their toxicity in vitro and in vivo.
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Affiliation(s)
- José Carlos De La Vega
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
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225
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Shirshahi V, Soltani M. Solid silica nanoparticles: applications in molecular imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 10:1-17. [PMID: 24996058 DOI: 10.1002/cmmi.1611] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 05/10/2014] [Accepted: 05/25/2014] [Indexed: 12/15/2022]
Abstract
Silica and silica-based nanoparticles have been widely used for therapeutic and diagnostic applications in cancer mainly through delivery of drugs, genes and contrast agents. Development of synthesis methods has provided the possibility of fabricating silica nanoparticles with different sizes in nanometer ranges as well as silica-based multimodal nanoparticles with many innovative properties and intriguing applications in biomedicine. The surface of silica particles facilitates different methods of surface modifications and allows conjugation of various biomolecules such as proteins and nucleic acids. In this review, different methods of fabrication of silica and silica-based nanoparticles, their surface modification and the application of these nanoparticles in molecular imaging are discussed. Overall, the aim of this review is to address the development of silica and silica-based multifunctional nanoparticles that are introduced mainly for molecular imaging applications using optical, magnetic (MRI), X-ray (computed tomography) and multimodal imaging techniques.
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Affiliation(s)
- Vahid Shirshahi
- Department of Medical Nanotechnology, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran
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226
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Antibacterial activity of Ag–Au alloy NPs and chemical sensor property of Au NPs synthesized by dextran. Carbohydr Polym 2014; 107:151-7. [DOI: 10.1016/j.carbpol.2014.02.047] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 02/06/2014] [Accepted: 02/14/2014] [Indexed: 12/17/2022]
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227
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Zhu J, Zheng L, Wen S, Tang Y, Shen M, Zhang G, Shi X. Targeted cancer theranostics using alpha-tocopheryl succinate-conjugated multifunctional dendrimer-entrapped gold nanoparticles. Biomaterials 2014; 35:7635-46. [PMID: 24927683 DOI: 10.1016/j.biomaterials.2014.05.046] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 05/19/2014] [Indexed: 02/03/2023]
Abstract
Development of multifunctional theranostic nanoplatforms for targeted cancer imaging and therapy still remains a great challenge. Herein, we report the use of multifunctional dendrimer-entrapped gold nanoparticles (Au DENPs) covalently linked with α-tocopheryl succinate (α-TOS) as a platform for targeted cancer computed tomography (CT) imaging and therapy. In this study, amine-terminated poly(amidoamine) dendrimers of generation 5 (G5.NH2) conjugated with fluorescein isothiocyanate (FI), polyethylene glycol (PEG)-modified α-TOS, and PEGylated folic acid (FA) were used as templates to synthesize Au DENPs, followed by acetylation of the remaining dendrimer terminal amines. The formed multifunctional Au DENPs were characterized via different techniques. We show that the Au DENPs conjugated with approximately 9.8 α-TOS molecules per dendrimer and with an Au core size of 3.3 nm are water-dispersible, and stable under different pH and temperature conditions and in different aqueous media. The FA modification onto the Au DENPs enables efficient targeting of the particles to cancer cells overexpressing FA receptors (FAR), and effective targeted CT imaging of the cancer cells in vitro and the xenografted tumor model in vivo. Likewise, the covalent conjugation of α-TOS does not compromise its therapeutic activity, instead significantly improves its water solubility. Importantly, thanks to the role of FA-directed targeting, the formed multifunctional Au DENPs are able to exert the specific therapeutic efficacy of α-TOS to the FAR-overexpressing cancer cells in vitro and the xenografted tumor model in vivo. The developed multifunctional Au DENPs may hold a great promise to be used as a unique theranostic nanoplatform for targeted CT imaging and therapy of different types of cancer.
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Affiliation(s)
- Jingyi Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Linfeng Zheng
- Department of Radiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200080, People's Republic of China
| | - Shihui Wen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yueqin Tang
- Experiment Center, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, People's Republic of China
| | - Mingwu Shen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Guixiang Zhang
- Department of Radiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200080, People's Republic of China.
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China.
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228
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Li N, Echeverría M, Moya S, Ruiz J, Astruc D. “Click” Synthesis of Nona-PEG-branched Triazole Dendrimers and Stabilization of Gold Nanoparticles That Efficiently Catalyze p-Nitrophenol Reduction. Inorg Chem 2014; 53:6954-61. [DOI: 10.1021/ic500861f] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Na Li
- ISM, UMR CNRS 5255, University of Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - María Echeverría
- CIC biomaGUNE, Unidad Biosuperficies, Paseo Miramón no. 182, Edif. “C”, 20009 Donostia-San Sebastián, Spain
| | - Sergio Moya
- CIC biomaGUNE, Unidad Biosuperficies, Paseo Miramón no. 182, Edif. “C”, 20009 Donostia-San Sebastián, Spain
| | - Jaime Ruiz
- ISM, UMR CNRS 5255, University of Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, UMR CNRS 5255, University of Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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229
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Liu H, Wang H, Xu Y, Guo R, Wen S, Huang Y, Liu W, Shen M, Zhao J, Zhang G, Shi X. Lactobionic acid-modified dendrimer-entrapped gold nanoparticles for targeted computed tomography imaging of human hepatocellular carcinoma. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6944-6953. [PMID: 24712914 DOI: 10.1021/am500761x] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Development of novel nanomaterial-based contrast agents for targeted computed tomography (CT) imaging of tumors still remains a great challenge. Here we describe a novel approach to fabricating lactobionic acid (LA)-modified dendrimer-entrapped gold nanoparticles (LA-Au DENPs) for in vitro and in vivo targeted CT imaging of human hepatocellular carcinoma. In this study, amine-terminated poly(amidoamine) dendrimers of generation 5 pre-modified with fluorescein isothiocyanate and poly(ethylene glycol)-linked LA were employed as templates to form Au nanoparticles. The remaining dendrimer terminal amines were subjected to an acetylation reaction to form LA-Au DENPs. The prepared LA-Au DENPs were characterized via different methods. Our results reveal that the multifunctional Au DENPs with a Au core size of 2.7 nm have good stability under different pH (5-8) and temperature (4-50 °C) conditions and in different aqueous media, and are noncytotoxic to normal cells but cytotoxic to the targeted hepatocarcinoma cells in the given concentration range. In vitro flow cytometry data show that the LA-Au DENPs can be specifically uptaken by a model hepatocarcinoma cell line overexpressing asialoglycoprotein receptors through an active receptor-mediated targeting pathway. Importantly, the LA-Au DENPs can be used as a highly effective nanoprobe for specific CT imaging of hepatocarcinoma cells in vitro and the xenoplanted tumor model in vivo. The developed LA-Au DENPs with X-ray attenuation property greater than clinically employed iodine-based CT contrast agents hold a great promise to be used as a nanoprobe for targeted CT imaging of human hepatocellular carcinoma.
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Affiliation(s)
- Hui Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , 2999 North Renmin Road, Shanghai 201620, P. R. China
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230
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Liu H, Wang H, Xu Y, Shen M, Zhao J, Zhang G, Shi X. Synthesis of PEGylated low generation dendrimer-entrapped gold nanoparticles for CT imaging applications. NANOSCALE 2014; 6:4521-6. [PMID: 24647803 DOI: 10.1039/c3nr06694k] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Dendrimer-entrapped gold nanoparticles (Au DENPs) can be formed using low-generation dendrimers pre-modified by polyethylene glycol (PEG). The formed PEGylated Au DENPs with desirable stability, cytocompatibility, and X-ray attenuation properties enable efficient computed tomography imaging of the heart and tumor model of mice.
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Affiliation(s)
- Hui Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China
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231
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Huo D, He J, Li H, Yu H, Shi T, Feng Y, Zhou Z, Hu Y. Fabrication of Au@Ag core–shell NPs as enhanced CT contrast agents with broad antibacterial properties. Colloids Surf B Biointerfaces 2014; 117:29-35. [DOI: 10.1016/j.colsurfb.2014.02.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 02/05/2014] [Accepted: 02/07/2014] [Indexed: 01/03/2023]
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232
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Jin E, Lu ZR. Biodegradable iodinated polydisulfides as contrast agents for CT angiography. Biomaterials 2014; 35:5822-9. [PMID: 24768156 DOI: 10.1016/j.biomaterials.2014.03.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Accepted: 03/21/2014] [Indexed: 10/25/2022]
Abstract
Current clinical CT contrast agents are mainly small molecular iodinated compounds, which often suffer from short blood pool retention for more comprehensive cardiovascular CT imaging and may cause contrast-induced nephropathy. In this work, we prepared polydisulfides containing a traditional iodinated CT contrast agent in order to optimize the pharmacokinetics of the agent and improve its safety. Initially acting as a macromolecular agent and achieving sharp blood vessel delineation, the polydisulfides can be reduced by endogenous thiols via disulfide-thiol exchange reaction to oligomers that can be readily excreted via renal filtration. Short polyethylene glycol (PEG) chain was also introduced to the polymers to further modify the in vivo properties of the agents. Strong and prolonged vascular enhancement has been generated with two new agents in mice (5-10 times higher blood pool enhancement than iodixanol). The polydisulfide agents gradually degraded and excreted via renal filtration. The gradual excretion process could prevent contrast-induced nephropathy. These results suggest that the biodegradable macromolecular CT contrast agents are promising safe and effective blood contrast agents for CT angiography and image-guided interventions.
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Affiliation(s)
- Erlei Jin
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Zheng-Rong Lu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
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233
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Yang L, da Rocha SRP. PEGylated, NH2-Terminated PAMAM Dendrimers: A Microscopic View from Atomistic Computer Simulations. Mol Pharm 2014; 11:1459-70. [DOI: 10.1021/mp400630z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lin Yang
- Department of Chemical Engineering
and Materials Science, College of Engineering, Wayne State University, 5050 Anthony Wayne Drive, 1133ENG, Detroit, Michigan 48202, United States
| | - Sandro R. P. da Rocha
- Department of Chemical Engineering
and Materials Science, College of Engineering, Wayne State University, 5050 Anthony Wayne Drive, 1133ENG, Detroit, Michigan 48202, United States
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234
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Yu J, Diao X, Zhang X, Chen X, Hao X, Li W, Zhang X, Lee CS. Water-dispersible, pH-stable and highly-luminescent organic dye nanoparticles with amplified emissions for in vitro and in vivo bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1125-1132. [PMID: 24318966 DOI: 10.1002/smll.201302230] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/18/2013] [Indexed: 06/02/2023]
Abstract
A new strategy is presented for using doped small-molecule organic nanoparticles (NPs) to achieve high-performance fluorescent probes with strong brightness, large Stokes shifts and tunable emissions for in vitro and in vivo imaging. The host organic NPs are used not only as carriers to encapsulate different doped dyes, but also as fluorescence resonance energy transfer donors to couple with the doped dyes (as acceptors) to achieve multicolor luminescence with amplified emissions (AE). The resulting optimum green emitting NPs show high brightness with quantum yield (QY) of up to 45% and AE of 12 times; and the red emitting NPs show QY of 14% and AE of 10 times. These highly-luminescent doped NPs can be further surface modified with poly(maleic anhydride-alt-1-octadecene)-polyethylene glycol (C18PMH-PEG), endowing them with excellent water dispersibility and robust stability in various bio-environments covering wide pH values from 2 to 10. In this study, cytotoxicity studies and folic acid targeted cellular imaging of these multicolor probes are carried out to demonstrate their potential for in vitro imaging. On this basis, applications of the NP probes in in vivo and ex vivo imaging are also investigated. Intense fluorescent signals of the doped NPs are distinctly, selectively and spatially resolved in tumor sites with high sensitivity, due to the preferential accumulation of the NPs in tumor sites through the passive enhanced permeability and retention effect. The results clearly indicate that these doped NPs are promising fluorescent probes for biomedical applications.
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Affiliation(s)
- Jia Yu
- Institute of Functional Nano & Soft Materials, Laboratory (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, PR China
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235
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Venault A, Yang HS, Chiang YC, Lee BS, Ruaan RC, Chang Y. Bacterial resistance control on mineral surfaces of hydroxyapatite and human teeth via surface charge-driven antifouling coatings. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3201-3210. [PMID: 24513459 DOI: 10.1021/am404780w] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This works reports a set of new functionalized polyethyleneimine (PEI) polymers, including a neutral PEGylated polymer PEI-g-PEGMA, a negatively charged polymer PEI-g-SA, and a zwitterionic polymer PEI-g-SBMA, and their use as antibiofouling coating agent for human teeth protection. Polymers were synthesized by Michael addition, XPS analysis revealed that each polymer could be efficiently coated onto hydroxyapatite, ceramic material used as a model tooth. Polymers carrying a negative net charge were more efficiently adsorbed, because of the establishment of electrostatic interactions with calcium ions. Protein adsorption tests revealed that two factors were important in the reduction of protein adsorption. Both the surface charge and the surface ability to bind and entrap water molecules had to be considered. PEI-g-SBMA, which zeta potential in PBS solution was negative, was efficient to inhibit the adsorption of BSA, a negative protein. On the other hand, it also resisted the adsorption of lysozyme, a positive protein, because zwitterionic molecules can easily entrap water and provide a very hydrophilic environment. Streptococcus mutans attachment tests performed unveiled that all modified polymers were efficient to resist this type of bacteria responsible for dental carries. Best results were also obtained with PEI-g-SBMA coating. This polymer was also shown to efficiently resist the adsorption of positively charged bacteria (Stenotrophomonas maltophilia). Tests performed on real human tooth showed that PEI-g-SBMA could inhibit up to 70% of bacteria adhesion, which constitutes a major result considering that surface of teeth is very rough, therefore physically promoting the attachment of proteins and bacteria.
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Affiliation(s)
- Antoine Venault
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
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236
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Dong K, Liu Z, Liu J, Huang S, Li Z, Yuan Q, Ren J, Qu X. Biocompatible and high-performance amino acids-capped MnWO4 nanocasting as a novel non-lanthanide contrast agent for X-ray computed tomography and T(1)-weighted magnetic resonance imaging. NANOSCALE 2014; 6:2211-2217. [PMID: 24382605 DOI: 10.1039/c3nr05455a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the present work, a novel non-lanthanide dual-modality contrast agent, manganese tungstate (MnWO4), has been successfully constructed by a facile and versatile hydrothermal route. With the merits of a high atomic number and a well-positioned K-edge energy of tungsten, our well-prepared non-lanthanide nanoprobes provide a higher contrast efficacy than routine iodine-based agents in clinics. Additionally, the presence of Mn in these nanoparticles endow them with excellent T1-weighted MR imaging capabilities. As an alternative to T2-weighted MRI and CT dual-modality contrast agents, the nanoprobes can provide a positive contrast signal, which prevents confusion with the dark signals from hemorrhage and blood clots. To the best of our knowledge, this is the first report that a non-lanthanide imaging nanoprobe is applied for CT and T1-weighted MRI simultaneously. Moreover, comparing with gadolinium-based T1-weighted MRI and CT dual-modality contrast agents that were associated with nephrogenic systemic fibrosis (NSF), our contrast agents have superior biocompatibility, which is proved by a detailed study of the pharmacokinetics, biodistribution, and in vivo toxicology. Together with excellent dispersibility, high biocompatibility and superior contrast efficacy, these nanoprobes provide detailed and complementary information from dual-modality imaging over traditional single-mode imaging and bring more opportunities to the new generation of non-lanthanide nanoparticulate-based contrast agents.
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Affiliation(s)
- Kai Dong
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Changchun, 130022, China.
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237
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Liang Z, Li X, Xie Y, Liu S. ‘Smart’ gold nanoshells for combined cancer chemotherapy and hyperthermia. Biomed Mater 2014; 9:025012. [DOI: 10.1088/1748-6041/9/2/025012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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238
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Zhang M, Guo R, Kéri M, Bányai I, Zheng Y, Cao M, Cao X, Shi X. Impact of Dendrimer Surface Functional Groups on the Release of Doxorubicin from Dendrimer Carriers. J Phys Chem B 2014; 118:1696-706. [DOI: 10.1021/jp411669k] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mengen Zhang
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Rui Guo
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Mónika Kéri
- Department
of Colloid and Environmental Chemistry, Faculty of Science, University of Debrecen, H4032 Egyetem t.1, Debrecen, Hungary
| | - István Bányai
- Department
of Colloid and Environmental Chemistry, Faculty of Science, University of Debrecen, H4032 Egyetem t.1, Debrecen, Hungary
| | - Yun Zheng
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Mian Cao
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Xueyan Cao
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Xiangyang Shi
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
- CQM-Centro
de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal
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239
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Direct synthesis and morphological characterization of gold-dendrimer nanocomposites prepared using PAMAM succinamic acid dendrimers: preliminary study of the calcification potential. ScientificWorldJournal 2014; 2014:103462. [PMID: 24600316 PMCID: PMC3926284 DOI: 10.1155/2014/103462] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 11/12/2013] [Indexed: 11/18/2022] Open
Abstract
Gold-dendrimer nanocomposites were obtained for the first time by a simple colloidal approach based on the use of polyamidoamine dendrimers with succinamic acid terminal groups and dodecanediamine core. Spherical and highly crystalline nanoparticles with dimensions between 3 nm and 60 nm, and size-polydispersity depending on the synthesis conditions, have been generated. The influence of the stoichiometric ratio and the structural and architectural features of the dendrimers on the properties of the nanocomposites has been described. The self-assembling behaviour of these materials produces gold-dendrimer nanostructured porous networks with variable density, porosity, and composition. The investigations of the reaction systems, by TEM, at two postsynthesis moments, allowed to preliminary establish the control over the properties of the nanocomposite products. Furthermore, this study allowed better understanding of the mechanism of nanocomposite generation. Impressively, in the early stages of the synthesis, the organization of gold inside the dendrimer molecules has been evidenced by micrographs. Growth and ripening mechanisms further lead to nanoparticles with typical characteristics. The potential of such nanocomposite particles to induce calcification when coating a polymer substrate was also investigated.
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240
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Al Zaki A, Joh D, Cheng Z, De Barros ALB, Kao G, Dorsey J, Tsourkas A. Gold-loaded polymeric micelles for computed tomography-guided radiation therapy treatment and radiosensitization. ACS NANO 2014; 8:104-12. [PMID: 24377302 PMCID: PMC3906892 DOI: 10.1021/nn405701q] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 12/30/2013] [Indexed: 05/21/2023]
Abstract
Gold nanoparticles (AuNPs) have generated interest as both imaging and therapeutic agents. AuNPs are attractive for imaging applications since they are nontoxic and provide nearly three times greater X-ray attenuation per unit weight than iodine. As therapeutic agents, AuNPs can sensitize tumor cells to ionizing radiation. To create a nanoplatform that could simultaneously exhibit long circulation times, achieve appreciable tumor accumulation, generate computed tomography (CT) image contrast, and serve as a radiosensitizer, gold-loaded polymeric micelles (GPMs) were prepared. Specifically, 1.9 nm AuNPs were encapsulated within the hydrophobic core of micelles formed with the amphiphilic diblock copolymer poly(ethylene glycol)-b-poly(ε-capralactone). GPMs were produced with low polydispersity and mean hydrodynamic diameters ranging from 25 to 150 nm. Following intravenous injection, GPMs provided blood pool contrast for up to 24 h and improved the delineation of tumor margins via CT. Thus, GPM-enhanced CT imaging was used to guide radiation therapy delivered via a small animal radiation research platform. In combination with the radiosensitizing capabilities of gold, tumor-bearing mice exhibited a 1.7-fold improvement in the median survival time, compared with mice receiving radiation alone. It is envisioned that translation of these capabilities to human cancer patients could guide and enhance the efficacy of radiation therapy.
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Affiliation(s)
- Ajlan Al Zaki
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Daniel Joh
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Zhiliang Cheng
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - André Luís Branco De Barros
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Gary Kao
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jay Dorsey
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Andrew Tsourkas
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Address correspondence to
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241
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Liao H, Liu H, Li Y, Zhang M, Tomás H, Shen M, Shi X. Antitumor efficacy of doxorubicin encapsulated within PEGylated poly(amidoamine) dendrimers. J Appl Polym Sci 2014. [DOI: 10.1002/app.40358] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Huihui Liao
- CQM-Centro de Química da Madeira, Universidade da Madeira; Campus da Penteada 9000-390 Funchal Portugal
| | - Hui Liu
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
| | - Yulin Li
- CQM-Centro de Química da Madeira, Universidade da Madeira; Campus da Penteada 9000-390 Funchal Portugal
| | - Mengen Zhang
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
| | - Helena Tomás
- CQM-Centro de Química da Madeira, Universidade da Madeira; Campus da Penteada 9000-390 Funchal Portugal
| | - Mingwu Shen
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
| | - Xiangyang Shi
- CQM-Centro de Química da Madeira, Universidade da Madeira; Campus da Penteada 9000-390 Funchal Portugal
- College of Chemistry; Chemical Engineering and Biotechnology; Donghua University; Shanghai 201620 People's Republic of China
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242
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Zhou Z, Kong B, Yu C, Shi X, Wang M, Liu W, Sun Y, Zhang Y, Yang H, Yang S. Tungsten oxide nanorods: an efficient nanoplatform for tumor CT imaging and photothermal therapy. Sci Rep 2014; 4:3653. [PMID: 24413483 PMCID: PMC3888983 DOI: 10.1038/srep03653] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/13/2013] [Indexed: 12/23/2022] Open
Abstract
We report here a facile thermal decomposition approach to creating tungsten oxide nanorods (WO2.9 NRs) with a length of 13.1 ± 3.6 nm and a diameter of 4.4 ± 1.5 nm for tumor theranostic applications. The formed WO2.9 NRs were modified with methoxypoly(ethylene glycol) (PEG) carboxyl acid via ligand exchange to have good water dispersability and biocompatibility. With the high photothermal conversion efficiency irradiated by a 980 nm laser and the better X-ray attenuation property than clinically used computed tomography (CT) contrast agent Iohexol, the formed PEGylated WO2.9 NRs are able to inhibit the growth of the model cancer cells in vitro and the corresponding tumor model in vivo, and enable effective CT imaging of the tumor model in vivo. Our “killing two birds with one stone” strategy could be extended for fabricating other nanoplatforms for efficient tumor theranostic applications.
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Affiliation(s)
- Zhiguo Zhou
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Bin Kong
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Chao Yu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Xiangyang Shi
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 210620, People's Republic of China
| | - Mingwei Wang
- Department of Nuclear Medicine, Shanghai Cancer Center & Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Wei Liu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Yanan Sun
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Yingjian Zhang
- Department of Nuclear Medicine, Shanghai Cancer Center & Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Hong Yang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Shiping Yang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, People's Republic of China
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243
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Zhao Y, Zhu X, Liu H, Luo Y, Wang S, Shen M, Zhu M, Shi X. Dendrimer-functionalized electrospun cellulose acetate nanofibers for targeted cancer cell capture applications. J Mater Chem B 2014; 2:7384-7393. [DOI: 10.1039/c4tb01278j] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Multifunctional folic acid-functionalized dendrimers can be modified on the surface of electrospun cellulose acetate nanofibers for the specific capture of FAR-overexpressing cancer cells.
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Affiliation(s)
- Yili Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620, People's Republic of China
- College of Textiles
| | - Xiaoyue Zhu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620, People's Republic of China
| | - Hui Liu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620, People's Republic of China
| | - Yu Luo
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620, People's Republic of China
| | - Shige Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620, People's Republic of China
| | - Mingwu Shen
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620, People's Republic of China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620, People's Republic of China
- College of Chemistry
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244
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Kobayashi Y, Inose H, Nagasu R, Nakagawa T, Kubota Y, Gonda K, Ohuchi N. X-ray imaging technique using colloid solution of Au/silica/poly(ethylene glycol) nanoparticles. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/1433075x13y.0000000100] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Y. Kobayashi
- Department of Biomolecular Functional EngineeringCollege of Engineering, Ibaraki University, 4-12-1 Naka-narusawa-cho, Hitachi, Ibaraki 316-8511, Japan
| | - H. Inose
- Department of Biomolecular Functional EngineeringCollege of Engineering, Ibaraki University, 4-12-1 Naka-narusawa-cho, Hitachi, Ibaraki 316-8511, Japan
| | - R. Nagasu
- Department of Biomolecular Functional EngineeringCollege of Engineering, Ibaraki University, 4-12-1 Naka-narusawa-cho, Hitachi, Ibaraki 316-8511, Japan
| | - T. Nakagawa
- Division of Surgical OncologyGraduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Y. Kubota
- Division of Surgical OncologyGraduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - K. Gonda
- Division of Surgical OncologyGraduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - N. Ohuchi
- Division of Surgical OncologyGraduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
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245
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Kalhapure RS, Kathiravan MK, Akamanchi KG, Govender T. Dendrimers - from organic synthesis to pharmaceutical applications: an update. Pharm Dev Technol 2013; 20:22-40. [PMID: 24299011 DOI: 10.3109/10837450.2013.862264] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Dendrimers are a relatively new class of monodisperse polymers, which have tree-like spherical structures with well-defined sizes and shapes. Their unique structure has a significant impact on their physical and chemical properties. Research on dendrimers is of significant interest to scientists from all areas and their utility in various scientific fields, including pharmaceuticals, is expanding. The present review is comprehensive and covers different aspects of dendrimers viz. (1) synthesis, (2) properties and (3) pharmaceutical applications. The emphasis is on their applications as well as the current ongoing research status for drug targeting.
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Affiliation(s)
- Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal , Durban , South Africa and
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246
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Liu H, Cao X, Yang J, Gong XQ, Shi X. Dendrimer-mediated hydrothermal synthesis of ultrathin gold nanowires. Sci Rep 2013; 3:3181. [PMID: 24212329 PMCID: PMC3822382 DOI: 10.1038/srep03181] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 10/24/2013] [Indexed: 11/17/2022] Open
Abstract
We report the use of poly(amidoamine) dendrimers as stabilizers to synthesize ultrathin Au nanowires (NWs) with a diameter of 1.3 nm via a hydrothermal approach. The formation of uniform Au NWs was optimized by varying the Au/Ag salt molar ratio, dendrimer stabilizers, and reaction solvent, temperature, and time. A novel growth mechanism involving a synergic facet-dependent deposition/reduction of Ag(I) and oriented migration of Au atoms is proposed based on density functional theory calculations and the experimental results. This work can significantly expand the scope of dendrimers as stabilizers to generate metal NWs in aqueous solution that may be further functionalized for different applications.
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Affiliation(s)
- Hui Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiaoming Cao
- State Key Laboratory of Chemical Engineering, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Jianmao Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China
- Research Center for Analysis & Measurement, Donghua University, Shanghai 201620, People's Republic of China
| | - Xue-Qing Gong
- State Key Laboratory of Chemical Engineering, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal
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247
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Peng C, Qin J, Lu X, Shi X. Folic acid-modified PEGylated dendrimer-entrapped gold nanoparticles for in vitro and in vivo specific computed tomography imaging of tumors. J Control Release 2013. [DOI: 10.1016/j.jconrel.2013.08.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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248
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Li J, Zheng L, Cai H, Sun W, Shen M, Zhang G, Shi X. Facile one-pot synthesis of Fe3O4@Au composite nanoparticles for dual-mode MR/CT imaging applications. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10357-66. [PMID: 24063810 DOI: 10.1021/am4034526] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A facile one-pot hydrothermal approach to synthesizing Fe3O4@Au composite nanoparticles (CNPs) for dual-mode magnetic resonance (MR) and computed tomography (CT) imaging applications is reported. In this work, polyethyleneimine (PEI) partially modified with poly(ethylene glycol) monomethyl ether (mPEG) was used as a stabilizer to form gold NPs (mPEG-PEI.NH2-Au NPs) with the assistance of sodium borohydride reduction. The mPEG-PEI.NH2-Au NPs were then mixed with iron(II) salt in a basic aqueous solution followed by treatment under an elevated temperature and pressure. This hydrothermal process led to the formation of Fe3O4@Au-mPEG-PEI.NH2 CNPs. The remaining PEI amine groups were finally acetylated to reduce the surface positive charge of the CNPs. The formed Fe3O4@Au-mPEG-PEI.NHAc (Fe3O4@Au) CNPs were characterized via different techniques. The combined in vitro cell viability assay, cell morphology observation, flow cytometry, and hemolysis assay data show that the formed Fe3O4@Au CNPs are noncytotoxic and hemocompatible in the given concentration range. MR and CT imaging data reveal that the formed Fe3O4@Au CNPs have a relatively high r2 relaxivity (146.07 mM(-1) s(-1)) and good X-ray attenuation property, which enables their uses as contrast agents for MR imaging of mouse liver and CT imaging of rat liver and aorta. The Fe3O4@Au CNPs developed via the facile one-pot approach may have promising potential for the dual-mode MR/CT imaging of different biological systems.
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Affiliation(s)
- Jingchao Li
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, P. R. China
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249
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Medina SH, Tiruchinapally G, Chevliakov MV, Durmaz YY, Stender RN, Ensminger WD, Shewach DS, Elsayed MEH. Targeting hepatic cancer cells with pegylated dendrimers displaying N-acetylgalactosamine and SP94 peptide ligands. Adv Healthc Mater 2013; 2:1337-50. [PMID: 23554387 DOI: 10.1002/adhm.201200406] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 01/25/2013] [Indexed: 12/13/2022]
Abstract
Poly(amidoamine) (PAMAM) dendrimers are branched water-soluble polymers defined by consecutive generation numbers (Gn) indicating a parallel increase in size, molecular weight, and number of surface groups available for conjugation of bioactive agents. In this article, we compare the biodistribution of N-acetylgalactosamine (NAcGal)-targeted [(14) C]1 -G5-(NH2 )5 -(Ac)108 -(NAcGal)14 particles to non-targeted [(14) C]1 -G5-(NH2 )127 and PEGylated [(14) C]1 -G5-(NH2 )44 -(Ac)73 -(PEG)10 particles in a mouse hepatic cancer model. Results show that both NAcGal-targeted and non-targeted particles are rapidly cleared from the systemic circulation with high distribution to the liver. However, NAcGal-targeted particles exhibited 2.5-fold higher accumulation in tumor tissue compared to non-targeted ones. In comparison, PEGylated particles showed a 16-fold increase in plasma residence time and a 5-fold reduction in liver accumulation. These results motivated us to engineer new PEGylated G5 particles with PEG chains anchored to the G5 surface via acid-labile cis-aconityl linkages where the free PEG tips are functionalized with NAcGal or SP94 peptide to investigate their potential as targeting ligands for hepatic cancer cells as a function of sugar conformation (α versus β), ligand concentration (100-4000 nM), and incubation time (2 and 24 hours) compared to fluorescently (Fl)-labeled and non-targeted G5-(Fl)6 -(NH2 )122 and G5-(Fl)6 -(Ac)107 -(cPEG)15 particles. Results show G5-(Fl)6 -(Ac)107 -(cPEG[NAcGalβ ])14 particles achieve faster uptake and higher intracellular concentrations in HepG2 cancer cells compared to other G5 particles while escaping the non-specific adsorption of serum protein and phagocytosis by Kupffer cells, which make these particles the ideal carrier for selective drug delivery into hepatic cancer cells.
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Affiliation(s)
- Scott H Medina
- University of Michigan, Department of Biomedical Engineering, 1101 Beal Avenue, Lurie Biomedical Engineering Building, Room 2150, Ann Arbor, MI 48109, USA, Web: www.bme.umich.edu/centlab.php
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250
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Wen S, Liu H, Cai H, Shen M, Shi X. Targeted and pH-responsive delivery of doxorubicin to cancer cells using multifunctional dendrimer-modified multi-walled carbon nanotubes. Adv Healthc Mater 2013; 2:1267-76. [PMID: 23447549 DOI: 10.1002/adhm.201200389] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 12/18/2012] [Indexed: 12/20/2022]
Abstract
We report the use of multifunctional dendrimer-modified multi-walled carbon nanotubes (MWCNTs) for targeted and pH-responsive delivery of doxorubicin (DOX) into cancer cells. In this study, amine-terminated generation 5 poly(amidoamine) (PAMAM) dendrimers modified with fluorescein isothiocyanate (FI) and folic acid (FA) were covalently linked to acid-treated MWCNTs, followed by acetylation of the remaining dendrimer terminal amines to neutralize the positive surface potential. The formed multifunctional MWCNTs (MWCNT/G5.NHAc-FI-FA) were characterized via different techniques. Then, the MWCNT/G5.NHAc-FI-FA was used to load DOX for targeted and pH-responsive delivery to cancer cells overexpressing high-affinity folic acid receptors (FAR). We showed that the MWCNT/G5.NHAc-FI-FA enabled a high drug payload and encapsulation efficiency both up to 97.8% and the formed DOX/MWCNT/G5.NHAc-FI-FA complexes displayed a pH-responsive release property with fast DOX release under acidic environment and slow release at physiological pH conditions. Importantly, the DOX/MWCNT/G5.NHAc-FI-FA complexes displayed effective therapeutic efficacy, similar to that of free DOX, and were able to target to cancer cells overexpressing high-affinity FAR and effectively inhibit the growth of the cancer cells. The synthesized multifunctional dendrimer-modified MWCNTs may be used as a targeted and pH-responsive delivery system for targeting therapy of different types of cancer cells.
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Affiliation(s)
- Shihui Wen
- State Key Laboratory for Modification of Chemical, Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
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