751
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Zhang M, Cao Y, Chong Y, Ma Y, Zhang H, Deng Z, Hu C, Zhang Z. Graphene oxide based theranostic platform for T1-weighted magnetic resonance imaging and drug delivery. ACS APPLIED MATERIALS & INTERFACES 2013; 5:13325-32. [PMID: 24313343 DOI: 10.1021/am404292e] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Magnetic resonance imaging (MRI) is a powerful and widely used clinical technique in cancer diagnosis. MRI contrast agents (CAs) are often used to improve the quality of MRI-based diagnosis. In this work, we developed a positive T1 MRI CA based on graphene oxide (GO)-gadolinium (Gd) complexes. In our strategy, diethylenetriaminepentaacetic acid (DTPA) is chemically conjugated to GO, followed by Gd(III) complexation, to form a T1 MRI CA (GO-DTPA-Gd). We have demonstrated that the GO-DTPA-Gd system significantly improves MRI T1 relaxivity and leads to a better cellular MRI contrast effect than Magnevist, a commercially used CA. Next, an anticancer drug, doxorubicin (DOX), was loaded on the surface of GO sheets via physisorption. Thus-prepared GO-DTPA-Gd/DOX shows significant cytotoxicity to the cancer cells (HepG2). This work provides a novel strategy to build a GO-based theranostic nanoplatform with T1-weighted MRI, fluorescence imaging, and drug delivery functionalities.
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Affiliation(s)
- Mengxin Zhang
- Suzhou Key Laboratory of Nanobiomedicine, Division of Nanobiomedicine, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences , 398 Ruoshui Road, Suzhou 215123, China
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752
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Liu Y, Chang Z, Yuan H, Fales AM, Vo-Dinh T. Quintuple-modality (SERS-MRI-CT-TPL-PTT) plasmonic nanoprobe for theranostics. NANOSCALE 2013; 5:12126-31. [PMID: 24162005 DOI: 10.1039/c3nr03762b] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A unique quintuple-modality theranostic nanoprobe (QMT) is developed with gold nanostars for surface-enhanced Raman scattering (SERS), magnetic resonance imaging (MRI), computed tomography (CT), two-photon luminescence (TPL) imaging and photothermal therapy (PTT). The synthesized gold nanostars were tagged with a SERS reporter and linked with an MRI contrast agent Gd(3+). In vitro experiments demonstrated the developed QMT nanoprobe to be a potential theranostic agent for future biomedical applications.
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Affiliation(s)
- Yang Liu
- Department of Biomedical Engineering, Duke University, Durham, NC, USA.
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753
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Phototriggerable liposomes: current research and future perspectives. Pharmaceutics 2013; 6:1-25. [PMID: 24662363 PMCID: PMC3978522 DOI: 10.3390/pharmaceutics6010001] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 11/28/2013] [Accepted: 12/05/2013] [Indexed: 11/21/2022] Open
Abstract
The field of cancer nanomedicine is considered a promising area for improved delivery of bioactive molecules including drugs, pharmaceutical agents and nucleic acids. Among these, drug delivery technology has made discernible progress in recent years and the areas that warrant further focus and consideration towards technological developments have also been recognized. Development of viable methods for on-demand spatial and temporal release of entrapped drugs from the nanocarriers is an arena that is likely to enhance the clinical suitability of drug-loaded nanocarriers. One such approach, which utilizes light as the external stimulus to disrupt and/or destabilize drug-loaded nanoparticles, will be the discussion platform of this article. Although several phototriggerable nanocarriers are currently under development, I will limit this review to the phototriggerable liposomes that have demonstrated promise in the cell culture systems at least (but not the last). The topics covered in this review include (i) a brief summary of various phototriggerable nanocarriers; (ii) an overview of the application of liposomes to deliver payload of photosensitizers and associated technologies; (iii) the design considerations of photoactivable lipid molecules and the chemical considerations and mechanisms of phototriggering of liposomal lipids; (iv) limitations and future directions for in vivo, clinically viable triggered drug delivery approaches and potential novel photoactivation strategies will be discussed.
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754
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Crawley N, Thompson M, Romaschin A. Theranostics in the Growing Field of Personalized Medicine: An Analytical Chemistry Perspective. Anal Chem 2013; 86:130-60. [DOI: 10.1021/ac4038812] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Niall Crawley
- Department
of Chemistry and
Institute for Biomaterials and Biomedical Engineering, University of Toronto, 80 St. George Street, Toronto, Ontario M5 S 3H6, Canada
| | - Michael Thompson
- Department
of Chemistry and
Institute for Biomaterials and Biomedical Engineering, University of Toronto, 80 St. George Street, Toronto, Ontario M5 S 3H6, Canada
| | - Alexander Romaschin
- Keenan Research Centre and
Clinical Biochemistry, St. Michael’s Hospital, 30 Bond Street, Toronto, Ontario M5B 1W8, Canada
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755
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Bolognesi ML. Amyloid Chemical Probes and Theranostics: Steps Toward Personalized Medicine in Neurodegenerative Diseases. METHODS AND PRINCIPLES IN MEDICINAL CHEMISTRY 2013. [DOI: 10.1002/9783527677252.ch09] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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756
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Ou J, Wang F, Huang Y, Li D, Jiang Y, Qin QH, Stachurski ZH, Tricoli A, Zhang T. Fabrication and cyto-compatibility of Fe3O4/SiO2/graphene-CdTe QDs/CS nanocomposites for drug delivery. Colloids Surf B Biointerfaces 2013; 117:466-72. [PMID: 24373978 DOI: 10.1016/j.colsurfb.2013.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 02/08/2023]
Abstract
Synthesis of magnetic Fe3O4/SiO2/graphene-CdTe QDs/chitosan nanocomposites (FGQCs) is investigated with respect to their potential of improving the drug loading content above that of magnetic/fluorescent bifunctional nanocomposites. To evaluate the performance of the FGQCs, their surface morphology was thoroughly assessed. The in vitro interaction between the FGQCs and heptoma cell line smmc-7721 cells was observed for the first time by TEM ultrathin section imaging. At an excitation wavelength of 365 nm, the graphene-QDs exhibit a strong luminescence in aqueous environments. The loading content and entrapment efficiency of the FGQCs were 70% and 50%, respectively. The cytotoxicity of this novel drug delivery system was evaluated in vitro using heptoma cell line smmc-7721 and quantified by the 3-(4,5-dimethylthiazol-z-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The results show that FGQCs are a promising new multifunctional material for drug delivery in biological and medical applications.
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Affiliation(s)
- Jun Ou
- Materials Science and Engineering College, Guilin University of Technology, Guilin 541004, China; Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi Zhuang Autonomous Region, Guilin, China.
| | - Fang Wang
- Materials Science and Engineering College, Guilin University of Technology, Guilin 541004, China
| | - Yuanjie Huang
- Guangxi Medical University, Experimental Center of Medical Sciences, Nanning 530021, China
| | - Duosheng Li
- Materials Science and Engineering College, Nanchang Hangkong University, Nanchang 330063, China
| | - Yuming Jiang
- Materials Science and Engineering College, Guilin University of Technology, Guilin 541004, China
| | - Qing-Hua Qin
- Research School of Engineering, Australian National University, Canberra 0200, ACT, Australia
| | - Z H Stachurski
- Research School of Engineering, Australian National University, Canberra 0200, ACT, Australia
| | - Antonio Tricoli
- Research School of Engineering, Australian National University, Canberra 0200, ACT, Australia
| | - Tina Zhang
- Research School of Engineering, Australian National University, Canberra 0200, ACT, Australia
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757
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Leung KCF, Wong CH, Zhu XM, Lee SF, Sham KWY, Lai JMY, Chak CP, Wang YXJ, Cheng CHK. Ternary hybrid nanocomposites for gene delivery and magnetic resonance imaging of hepatocellular carcinoma cells. Quant Imaging Med Surg 2013; 3:302-7. [PMID: 24404444 PMCID: PMC3882806 DOI: 10.3978/j.issn.2223-4292.2013.12.05] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 12/13/2013] [Indexed: 01/28/2023]
Abstract
This paper describes comparative studies in magnetic resonance imaging (MRI) and gene deliveries toward hepatocellular carcinoma (HCC) HepG2 cells with ternary composites that consist of superparamagnetic iron oxide (SPIO) nanoparticles (NPs) (8-10 nm) with deferoxamine coating, circular plasmid DNA (~4 kb) equipped with green fluorescent probe, and branched polyethylenimine (PEI) (25 kDa, PDI 2.5). The packaging of the ternary complexes has been characterized by agarose gel retardation assay. By tuning the PEI/NP ratios and with a fixed DNA amount, different ternary composites have been employed for NP/gene transfection towards HepG2 cells, which have been characterized by in vitro MRI and green fluorescence protein (GFP) fluorescence.
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Affiliation(s)
- Ken Cham-Fai Leung
- Department of Chemistry and Institute of Creativity, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, P. R. China
| | - Chi-Hin Wong
- Department of Chemistry and Institute of Creativity, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, P. R. China
| | - Xiao-Ming Zhu
- Department of Chemistry and Institute of Creativity, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, P. R. China
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
| | - Siu-Fung Lee
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
| | - Kathy W. Y. Sham
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
| | - Josie M. Y. Lai
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
| | - Chun-Pong Chak
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
| | - Yi-Xiang J. Wang
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
| | - Christopher H. K. Cheng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P. R. China
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758
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de la Iglesia D, Cachau RE, García-Remesal M, Maojo V. Nanoinformatics knowledge infrastructures: bringing efficient information management to nanomedical research. COMPUTATIONAL SCIENCE & DISCOVERY 2013; 6:014011. [PMID: 24932210 PMCID: PMC4053539 DOI: 10.1088/1749-4699/6/1/014011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanotechnology represents an area of particular promise and significant opportunity across multiple scientific disciplines. Ongoing nanotechnology research ranges from the characterization of nanoparticles and nanomaterials to the analysis and processing of experimental data seeking correlations between nanoparticles and their functionalities and side effects. Due to their special properties, nanoparticles are suitable for cellular-level diagnostics and therapy, offering numerous applications in medicine, e.g. development of biomedical devices, tissue repair, drug delivery systems and biosensors. In nanomedicine, recent studies are producing large amounts of structural and property data, highlighting the role for computational approaches in information management. While in vitro and in vivo assays are expensive, the cost of computing is falling. Furthermore, improvements in the accuracy of computational methods (e.g. data mining, knowledge discovery, modeling and simulation) have enabled effective tools to automate the extraction, management and storage of these vast data volumes. Since this information is widely distributed, one major issue is how to locate and access data where it resides (which also poses data-sharing limitations). The novel discipline of nanoinformatics addresses the information challenges related to nanotechnology research. In this paper, we summarize the needs and challenges in the field and present an overview of extant initiatives and efforts.
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Affiliation(s)
- D de la Iglesia
- Biomedical Informatics Group, Dept. Inteligencia Artificial, Facultad de Informatica, Universidad Politecnica de Madrid, 28660, Boadilla del Monte, Madrid, Spain
| | - R E Cachau
- Advanced Biomedical Computing Center, National Cancer Institute, SAIC-Frederick Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - M García-Remesal
- Biomedical Informatics Group, Dept. Inteligencia Artificial, Facultad de Informatica, Universidad Politecnica de Madrid, 28660, Boadilla del Monte, Madrid, Spain
| | - V Maojo
- Biomedical Informatics Group, Dept. Inteligencia Artificial, Facultad de Informatica, Universidad Politecnica de Madrid, 28660, Boadilla del Monte, Madrid, Spain
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759
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Dykman LA, Khlebtsov NG. Uptake of engineered gold nanoparticles into mammalian cells. Chem Rev 2013; 114:1258-88. [PMID: 24279480 DOI: 10.1021/cr300441a] [Citation(s) in RCA: 232] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lev A Dykman
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences (IBPPM RAS), 13 Prospekt Entuziastov, Saratov 410049, Russia
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760
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Dai X, Fan Z, Lu Y, Ray PC. Multifunctional nanoplatforms for targeted multidrug-resistant-bacteria theranostic applications. ACS APPLIED MATERIALS & INTERFACES 2013; 5:11348-54. [PMID: 24138085 DOI: 10.1021/am403567k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The emergence of multidrug-resistant-bacteria (MDRB) infection poses a major burden to modern healthcare. Early detection in the bloodstream and a new strategy development for MDRB infection treatment without antibiotics are clinically significant to save millions of lives every year. To tackle the MDRB challenge, the current manuscript reports the design of "multifunctional nanoplatforms" consisting of a magnetic core-plasmonic shell nanoparticle, a methylene blue-bound aptamer, and an MDRB Salmonella DT104 specific antibody. The reported "multifunctional nanoplatform" is capable of targeted separation from a blood sample and sensing and multimodal therapeutic killing of MDRB. Experimental data using an MDRB-infected whole-blood sample show that nanoplatforms can be used for selective magnetic separation and fluorescence imaging. In vitro light-triggered photodestruction of MDRB, using combined photodynamic and photothermal treatment, shows that the multimodal treatment regime can enhance MDRB killing significantly. We discussed the possible mechanisms on combined synergistic therapy for killing MDRB. The "multifunctional nanoplatform" reported in this manuscript has great potential for the imaging and combined therapy of MDRB in clinical settings.
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Affiliation(s)
- Xuemei Dai
- Department of Chemistry, Jackson State University , Jackson, Mississippi 39217, United States
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761
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Kang X, Li C, Cheng Z, Ma P, Hou Z, Lin J. Lanthanide-doped hollow nanomaterials as theranostic agents. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2013; 6:80-101. [PMID: 24227795 DOI: 10.1002/wnan.1251] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/17/2013] [Accepted: 09/26/2013] [Indexed: 12/20/2022]
Abstract
The field of theranostics has sprung up to achieve personalized medicine. The theranostics fuses diagnostic and therapeutic functions, empowering early diagnosis, targeted drug delivery, and real-time monitoring of treatment effect into one step. One particularly attractive class of nanomaterials for theranostic application is lanthanide-doped hollow nanomaterials (LDHNs). Because of the existence of lanthanide ions, LDHNs show outstanding fluorescent and paramagnetic properties, enabling them to be used as multimodal bioimaging agents. Synchronously, the huge interior cavities of LDHNs are able to be applied as efficacious tools for storage and delivery of therapeutic agents. The LDHNs can be divided into two types based on difference of component: single-phase lanthanide-doped hollow nanomaterials and lanthanide-doped hollow nanocomposites. We describe the synthesis of first kind of nanomaterials by use of hard template, soft template, template-free, and self-sacrificing template method. For lanthanide-doped hollow nanocomposites, we divide the preparation strategies into three kinds (one-step, two-step, and multistep method) according to the synthetic procedures. Furthermore, we also illustrate the potential bioapplications of these LDHNs, including biodetection, imaging (fluorescent imaging and magnetic resonance imaging), drug/gene delivery, and other therapeutic applications.
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Affiliation(s)
- Xiaojiao Kang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China
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762
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Karamchand L, Kim G, Wang S, Hah HJ, Ray A, Jiddou R, Koo Lee YE, Philbert MA, Kopelman R. Modulation of hydrogel nanoparticle intracellular trafficking by multivalent surface engineering with tumor targeting peptide. NANOSCALE 2013; 5:10327-44. [PMID: 24056573 PMCID: PMC3823366 DOI: 10.1039/c3nr00908d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Surface engineering of a hydrogel nanoparticle (NP) with the tumor-targeting ligand, F3 peptide, enhances both the NP's binding affinity for, and internalization by, nucleolin overexpressing tumor cells. Remarkably, the F3-functionalized NPs consistently exhibited significantly lower trafficking to the degradative lysosomes than the non-functionalized NPs, in the tumor cells, after internalization. This is attributed to the non-functionalized NPs, but not the F3-functionalized NPs, being co-internalized with Lysosome-associated Membrane Protein-1 (LAMP1) from the surface of the tumor cells. Furthermore, it is shown that the intracellular trafficking of the F3-functionalized NPs differs significantly from that of the molecular F3 peptides (untethered to NPs). This has important implications for designing effective, chemically-responsive, controlled-release and multifunctional nanodrugs for multi-drug-resistant cancers.
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Affiliation(s)
- Leshern Karamchand
- Department of Chemistry, University of Michigan, 930 North University Ave, Ann Arbor, Michigan 48109, USA.
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763
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Fatouros PP, Shultz MD. Metallofullerenes: a new class of MRI agents and more? Nanomedicine (Lond) 2013; 8:1853-64. [PMID: 24156489 DOI: 10.2217/nnm.13.160] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Metallofullerenes have incited research endeavors across many disciplines owing to their wide range of properties obtainable by altering the metal component inside the fullerene cage or by a variety of surface functionalities. With a metal component of gadolinium, gadofullerenes have particularly shown promise in MRI applications owing to their high proton relaxivity and isolation of the metal from the biological environment. This article aims to give a perspective on the development of metallofullerenes as MRI contrast agents and further applications that distinguish them as a new class of imaging agent.
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Affiliation(s)
- Panos P Fatouros
- Department of Radiology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Michael D Shultz
- Hunter Holmes McGuire Veterans Affairs Medical Center, Research & Development, Richmond, VA 23249, USA
- Department of Biochemistry & Molecular Biology Virginia Commonwealth University, Richmond, VA 23298, USA
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764
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Abstract
Radiometals comprise many useful radioactive isotopes of various metallic elements. When properly harnessed, these have valuable emission properties that can be used for diagnostic imaging techniques, such as single photon emission computed tomography (SPECT, e.g.(67)Ga, (99m)Tc, (111)In, (177)Lu) and positron emission tomography (PET, e.g.(68)Ga, (64)Cu, (44)Sc, (86)Y, (89)Zr), as well as therapeutic applications (e.g.(47)Sc, (114m)In, (177)Lu, (90)Y, (212/213)Bi, (212)Pb, (225)Ac, (186/188)Re). A fundamental critical component of a radiometal-based radiopharmaceutical is the chelator, the ligand system that binds the radiometal ion in a tight stable coordination complex so that it can be properly directed to a desirable molecular target in vivo. This article is a guide for selecting the optimal match between chelator and radiometal for use in these systems. The article briefly introduces a selection of relevant and high impact radiometals, and their potential utility to the fields of radiochemistry, nuclear medicine, and molecular imaging. A description of radiometal-based radiopharmaceuticals is provided, and several key design considerations are discussed. The experimental methods by which chelators are assessed for their suitability with a variety of radiometal ions is explained, and a large selection of the most common and most promising chelators are evaluated and discussed for their potential use with a variety of radiometals. Comprehensive tables have been assembled to provide a convenient and accessible overview of the field of radiometal chelating agents.
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Affiliation(s)
- Eric W Price
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, CanadaV6T 1Z1.
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765
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Marydasan B, Nair AK, Ramaiah D. Optimization of triplet excited state and singlet oxygen quantum yields of picolylamine-porphyrin conjugates through zinc insertion. J Phys Chem B 2013; 117:13515-22. [PMID: 24063545 DOI: 10.1021/jp407524w] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We synthesized a new class of picolylamine-porphyrin conjugates 1-3 and have investigated the effect of heavy atom insertion on their intersystem crossing efficiency through spin-orbit perturbations. By incorporating zinc ions in the core as well as periphery positions of the porphyrin ring, we have successfully optimized their triplet excited state quantum yields and their efficiency to generate singlet oxygen. Uniquely, the picolylamine-porphyrin conjugate 3 having five zinc ions exhibited a triplet excited state quantum yield of ca. 0.97 and a sensitized singlet oxygen generation yield of ca. 0.92. In contrast, the free base porphyrin derivative 1 exhibited ca. 0.64 and 0.5 of the triplet excited state and singlet oxygen quantum yields, respectively. Our results demonstrate that the insertion of zinc metal ions in the picolylamine-porphyrin conjugates not only quantitatively enhances the triplet excited state and singlet oxygen yields but also imparts hydrophilicity, thereby their potential use as sensitizers in photodynamic therapy and green photooxygenation reactions.
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Affiliation(s)
- Betsy Marydasan
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum 695019, India
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766
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Rodrigues AS, Ribeiro T, Fernandes F, Farinha JPS, Baleizão C. Intrinsically fluorescent silica nanocontainers: a promising theranostic platform. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2013; 19:1216-1221. [PMID: 23800692 DOI: 10.1017/s1431927613001517] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper we describe the preparation of fluorescent mesoporous silica nanoparticles (MSNs) for traceable drug delivery systems. The nanoparticles were prepared following a sol-gel procedure, incorporating a modified perylenediimide dye in the silica structure. Transmission electron microscopy and scanning electron microscopy show that the nanoparticles are monodispersed, with a spheroid shape and a raspberry-type surface morphology. The hybrid MSNs are robust, maintaining the mesoporous structure after template removal, with a pore diameter above 2 nm. A polymer shell was synthesized from the external surface of the hybrid nanoparticles by atom transfer radical polymerization, showing temperature-switchable collapsed/expanded conformation control. The fluorescent properties of the perylenediimide dye incorporated in the MSN pore walls are intact, and internalization in HEK293 cells shows that the nanoparticles are efficiently dispersed in the cytosol. These results show that the mesoporous fluorescent hybrid nanoparticles are an excellent platform for development of a traceable drug delivery system.
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Affiliation(s)
- Ana S Rodrigues
- Centro de Química-Física Molecular (CQFM) and Institute of Nanoscience and Nanotechnology (IN), Instituto Superior Técnico, 1049-001 Lisboa, Portugal
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767
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Kumar A, Chen F, Mozhi A, Zhang X, Zhao Y, Xue X, Hao Y, Zhang X, Wang PC, Liang XJ. Innovative pharmaceutical development based on unique properties of nanoscale delivery formulation. NANOSCALE 2013; 5:8307-8325. [PMID: 23860639 PMCID: PMC3934102 DOI: 10.1039/c3nr01525d] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The advent of nanotechnology has reignited interest in the field of pharmaceutical science for the development of nanomedicine. Nanomedicinal formulations are nanometer-sized carrier materials designed for increasing the drug tissue bioavailability, thereby improving the treatment of systemically applied chemotherapeutic drugs. Nanomedicine is a new approach to deliver the pharmaceuticals through different routes of administration with safer and more effective therapies compared to conventional methods. To date, various kinds of nanomaterials have been developed over the years to make delivery systems more effective for the treatment of various diseases. Even though nanomaterials have significant advantages due to their unique nanoscale properties, there are still significant challenges in the improvement and development of nanoformulations with composites and other materials. Here in this review, we highlight the nanomedicinal formulations aiming to improve the balance between the efficacy and the toxicity of therapeutic interventions through different routes of administration and how to design nanomedicine for safer and more effective ways to improve the treatment quality. We also emphasize the environmental and health prospects of nanomaterials for human health care.
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Affiliation(s)
- Anil Kumar
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
- University of Chinese Academy of Science, Beijing, P. R. China
| | - Fei Chen
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
- University of Chinese Academy of Science, Beijing, P. R. China
| | - Anbu Mozhi
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
- University of Chinese Academy of Science, Beijing, P. R. China
| | - Xu Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
| | - Yuanyuan Zhao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
| | - Xiangdong Xue
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
- University of Chinese Academy of Science, Beijing, P. R. China
| | - Yanli Hao
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Beijing, China
| | - Xiaoning Zhang
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University, Beijing, China
| | - Paul C. Wang
- Laboratory of Molecular Imaging, Department of Radiology, Howard University, Washington DC 20060, USA
| | - Xing-Jie Liang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, No. 11, First North Road, Beijing100190, P. R. China
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768
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Gated hybrid delivery systems: En route to sensory materials with inherent signal amplification. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.03.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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769
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Nurunnabi M, Khatun Z, Huh KM, Park SY, Lee DY, Cho KJ, Lee YK. In vivo biodistribution and toxicology of carboxylated graphene quantum dots. ACS NANO 2013; 7:6858-67. [PMID: 23829293 DOI: 10.1021/nn402043c] [Citation(s) in RCA: 241] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Photoluminescent graphene quantum dots (GQDs) have fascinating optical and electronic properties with numerous promising applications in biomedical engineering. In this work, we first studied the in vivo biodistribution and the potential toxicity of carboxylated photoluminescent GQDs. KB, MDA-MB231, A549 cancer cells, and MDCK normal cell line were chosen as in vitro cell culture models to examine the possible adverse effects of the carboxylated photoluminescent GQDs. The carboxylated GQDs are desirable for increased aqueous solubility. All cancer cells efficiently took up the carboxylated GQDs. No acute toxicity or morphological changes were noted in either system at the tested exposure levels. A long-term in vivo study revealed that the GQDs mainly accumulated in liver, spleen, lung, kidney, and tumor sites after intravenous injection. To reveal any potential toxic effect of the GQDs on treated mice, serum biochemical analysis and histological evaluation were performed. The toxicity results from serum biochemistry and complete blood count study revealed that the GQDs do not cause appreciable toxicity to the treated animals. Finally, we observed no obvious organ damage or lesions for the GQDs treated mice after 21 days of administration at 5 mg/kg or 10 mg/kg dosages. With adequate studies of toxicity, both in vitro and in vivo, photoluminescent GQDs may be considered for biological application.
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Affiliation(s)
- Md Nurunnabi
- Department of Polymer Science and Engineering, Korea National University of Transportation, Chungbuk 380-702, Republic of Korea
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770
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Basuki JS, Duong HTT, Macmillan A, Whan R, Boyer C, Davis TP. Polymer-Grafted, Nonfouling, Magnetic Nanoparticles Designed to Selectively Store and Release Molecules via Ionic Interactions. Macromolecules 2013. [DOI: 10.1021/ma401171d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | | | | | | | - Thomas P. Davis
- Monash Institute of Pharmaceutical
Sciences, Monash University, Parkville,
VIC 3052, Australia
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771
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Li Y, Ma J, Zhu H, Gao X, Dong H, Shi D. Green synthetic, multifunctional hybrid micelles with shell embedded magnetic nanoparticles for theranostic applications. ACS APPLIED MATERIALS & INTERFACES 2013; 5:7227-7235. [PMID: 23815498 DOI: 10.1021/am401573b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The objective of this study is to design and develop a green-synthetic, multifunctional hybrid micelles with shell embedded magnetic nanoparticles for theranostic applications. The hybrid micelles were engineered based on complex micelles self-assembled from amphiphilic block copolymers Pluronic F127 and peptide-amphiphile (PA) pal-AAAAHHHD. The reason to choose PA is due to its amphiphilic character and the coordination capability for Fe(3+) and Fe(2+). The PA incorporation allows the in situ growth of the magnetic iron oxide nanoparticles onto the complex micelles, to yield the nanostructures with shell embedded magnetic nanoparticles at an ambient condition without any organic solvents. The anticancer drug doxorubicin (DOX) can be efficiently loaded into the hybrid micelles. Interestingly, the magnetic nanoparticles anchored on the shell were found to significantly retard the DOX release behavior of the drug loaded hybrid micelles. It was proposed that a cross-linking effect of the shell by magnetic nanoparticles is a key to underlie the above intriguing phenomenon, which could enhance the stability and control the drug diffusion of the hybrid micelles. Importantly, in vitro and in vivo magnetic resonance imaging (MRI) revealed the potential of these hybrid micelles to be served as a T2-weighted MR imaging contrast enhancer for clinical diagnosis.
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Affiliation(s)
- Yongyong Li
- The Institute for Biomedical Engineering and Nano Science, Tongji University, Shanghai 200092, P.R. China.
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772
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Idée JM, Guiu B. Use of Lipiodol as a drug-delivery system for transcatheter arterial chemoembolization of hepatocellular carcinoma: a review. Crit Rev Oncol Hematol 2013; 88:530-49. [PMID: 23921081 DOI: 10.1016/j.critrevonc.2013.07.003] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 06/05/2013] [Accepted: 07/09/2013] [Indexed: 12/12/2022] Open
Abstract
Hepatocellular carcinoma (HCC) remains a major public health problem. Transarterial chemoembolization (TACE) is recognized as the standard of care for patients with unresectable, asymptomatic, noninvasive and multinodular HCC. This procedure is based on percutaneous administration of a cytotoxic drug emulsified with Lipiodol followed by embolization of the tumour-feeding arteries. The standard procedure involves Lipiodol, an oily contrast medium which consists of a mixture of long-chain di-iodinated ethyl esters of poppy seed fatty acids. The aim of this review is to discuss the physical properties, tumour uptake behaviour and drug delivery effects of Lipiodol, the parameters influencing tumour uptake and future prospects. Lipiodol has a unique place in TACE as it combines three specific characteristics: drug delivery, transient and plastic embolization and radiopacity properties. Substantial heterogeneity in the physicochemical characteristics of Lipiodol/cytotoxic agent emulsions might reduce the efficacy of this procedure and justifies the current interest in Lipiodol for drug delivery.
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Affiliation(s)
- Jean-Marc Idée
- Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France.
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773
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Nathani RI, Moody P, Chudasama V, Smith MEB, Fitzmaurice RJ, Caddick S. A novel approach to the site-selective dual labelling of a protein via chemoselective cysteine modification. Chem Sci 2013; 4:3455-3458. [PMID: 24741436 PMCID: PMC3985185 DOI: 10.1039/c3sc51333e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 06/17/2013] [Indexed: 11/21/2022] Open
Abstract
Local protein microenvironment is used to control the outcome of reaction between cysteine residues and 2,5-dibromohexanediamide. The differential reactivity is exploited to introduce two orthogonal reactive handles onto the surface of a double cysteine mutant of superfolder green fluorescent protein in a regioselective manner. Subsequent elaboration with commonly used thiol and alkyne containing reagents affects site-selective protein dual labelling.
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Affiliation(s)
- Ramiz I Nathani
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; ; Tel: +44 (0)20 3108 5071
| | - Paul Moody
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; ; Tel: +44 (0)20 3108 5071
| | - Vijay Chudasama
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; ; Tel: +44 (0)20 3108 5071
| | - Mark E B Smith
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; ; Tel: +44 (0)20 3108 5071
| | - Richard J Fitzmaurice
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; ; Tel: +44 (0)20 3108 5071
| | - Stephen Caddick
- Department of Chemistry , University College London , 20 Gordon Street , London , WC1H OAJ , UK . ; ; Tel: +44 (0)20 3108 5071
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774
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Chauvin AS, Thomas F, Song B, Vandevyver CDB, Bünzli JCG. Synthesis and cell localization of self-assembled dinuclear lanthanide bioprobes. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2013; 371:20120295. [PMID: 23776298 DOI: 10.1098/rsta.2012.0295] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Lanthanide bioprobes and bioconjugates are ideal luminescent stains in view of their low propensity to photobleaching, sharp emission lines and long excited state lifetimes permitting time-resolved detection for enhanced sensitivity. In this paper, we expand our previous work which demonstrated that self-assembled dinuclear triple-stranded helicates [Ln2(L(C2X))3] behave as excellent cell and tissue labels in immunocytochemical and immunohistochemical assays. The synthetic strategy of the hexadentate ditopic ligands incorporating dipicolinic acid, benzimidazole units and polyoxyethylene pendants is revisited in order to provide a more straightforward route and to give access to further functionalization of the polyoxyethylene arms by incorporating a terminal function X. Formation of the helicates [Ln2(L(C2X))3] (X=COOH, CH2OH, COEt, NH2, phthalimide) is ascertained by several experimental techniques and their stability tested against diethylenetriaminepentaacetate. Their photophysical properties (quantum yield, lifetime, radiative lifetime and sensitization efficiency) are presented and compared with those of the parent helicates [Ln2(L(C2))3]. Finally, the cellular uptake of five Eu(III) helicates is monitored by time-resolved luminescence microscopy and their localization in HeLa cells established by co-staining experiments.
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Affiliation(s)
- Anne-Sophie Chauvin
- Laboratory of Lanthanide Supramolecular Chemistry, École Polytechnique Fédérale de Lausanne, BCH 1404, 1015 Lausanne, Switzerland
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775
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Peng E, Choo ESG, Tan CSH, Tang X, Sheng Y, Xue J. Multifunctional PEGylated nanoclusters for biomedical applications. NANOSCALE 2013; 5:5994-6005. [PMID: 23712590 DOI: 10.1039/c3nr00774j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A simple and versatile synthesis method to form water soluble multifunctional nanoclusters using polyethylene glycol (PEG) functionalized poly(maleic anhydride-alt-1-octadecene) amphiphilic brush copolymers (PMAO-g-PEG) was presented. Simply by tuning the core size and the initial nanocrystal concentration, manganese ferrite nanoparticles (MFNPs) were used to demonstrate the versatility of tuning the loading amount of the nanoclusters. The resultant nanoclusters were found to have a well-controlled spherical shape. When Zn-doped AgInS2 quantum dots (AIZS QDs) were loaded together with the MFNP nanocrystals, bi-functional nanoclusters with fluorescent and magnetic behaviors were obtained. Such bi-functional nanoclusters were also successfully demonstrated for cellular bio-imaging. Moreover, the presence of another type of nanocrystals together with MFNPs was found to have a negligible effect on the overall properties of the nanoclusters as demonstrated by the MR relaxivity test. From the time-dependent colloidal stability test, it was found that the presence of the PEG chain grafted onto PMAO was able to reduce protein adsorption onto the nanocluster surface. An in vitro study on NIH/3T3 demonstrated the biocompatibility of the nanoclusters. Such biocompatible and colloidally stable nanoclusters with an approximate size of 80-120 nm were suitable for both MRI and cell labeling applications.
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Affiliation(s)
- Erwin Peng
- Department of Materials Science & Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576
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776
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Maeda H. The link between infection and cancer: tumor vasculature, free radicals, and drug delivery to tumors via the EPR effect. Cancer Sci 2013; 104:779-89. [PMID: 23495730 PMCID: PMC7657157 DOI: 10.1111/cas.12152] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 03/10/2013] [Indexed: 12/16/2022] Open
Abstract
This review focuses primarily on my own research, including pathogenic mechanisms of microbial infection, vascular permeability in infection and tumors, and effects of nitric oxide (NO), superoxide anion radical (O₂⁻), and 8-nitroguanosine in the enhanced permeability and retention (EPR) effect for the tumor-selective delivery of macromolecular agents (nanomedicines). Infection-induced vascular permeability is mediated by activation of the kinin-generating protease cascade (kallikrein-kinin) triggered by exogenous microbial proteases. A similar mechanism operates in cancer tissues and in carcinomatosis of the pleural and peritoneal cavities. Infection also stimulates O₂⁻ generation via activation of xanthine oxidase while generating NO by inducing NO synthase. These chemicals function in mutation and carcinogenesis and promote inflammation, in which peroxynitrite (a product of O₂⁻ and NO) activates MMP, damages DNA and RNA, and regenerates 8-nitroguanosine and 8-oxoguanosine. We showed vascular permeability by using macromolecular drugs, which are not simply extravasated through the vascular wall into the tumor interstitium but remain there for prolonged periods. We thus discovered the EPR effect, which led to the rational development of tumor-selective delivery of polymer conjugates, micellar and liposomal drugs, and genes. Our styrene-maleic acid copolymer conjugated with neocarzinostatin was the first agent of its kind used to treat hepatoma. The EPR effect occurs not only because of defective vascular architecture but also through the generation of various vascular mediators such as kinin, NO, and vascular endothelial growth factor. Although most solid tumors, including human tumors, show the EPR effect, heterogeneity of tumor tissue may impede drug delivery. This review describes the barriers and countermeasures for improved drug delivery to tumors by using nanomedicines.
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Affiliation(s)
- Hiroshi Maeda
- Institute of Drug Delivery System Research, Sojo University, Kumamoto, Japan.
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777
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Langereis S, Geelen T, Grüll H, Strijkers GJ, Nicolay K. Paramagnetic liposomes for molecular MRI and MRI-guided drug delivery. NMR IN BIOMEDICINE 2013; 26:728-44. [PMID: 23703874 DOI: 10.1002/nbm.2971] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 04/04/2013] [Accepted: 04/05/2013] [Indexed: 05/07/2023]
Abstract
Liposomes are a versatile class of nanoparticles with tunable properties, and multiple liposomal drug formulations have been clinically approved for cancer treatment. In recent years, an extensive library of gadolinium (Gd)-containing liposomal MRI contrast agents has been developed for molecular and cellular imaging of disease-specific markers and for image-guided drug delivery. This review discusses the advances in the development and novel applications of paramagnetic liposomes in molecular and cellular imaging, and in image-guided drug delivery. A high targeting specificity has been achieved in vitro using ligand-conjugated paramagnetic liposomes. On targeting of internalizing cell receptors, the effective longitudinal relaxivity r1 of paramagnetic liposomes is modulated by compartmentalization effects. This provides unique opportunities to monitor the biological fate of liposomes. In vivo contrast-enhanced MRI studies with nontargeted liposomes have shown the extravasation of liposomes in diseases associated with endothelial dysfunction, such as tumors and myocardial infarction. The in vivo use of targeted paramagnetic liposomes has facilitated the specific imaging of pathophysiological processes, such as angiogenesis and inflammation. Paramagnetic liposomes loaded with drugs have been utilized for therapeutic interventions. MR image-guided drug delivery using such liposomes allows the visualization and quantification of local drug delivery.
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Affiliation(s)
- Sander Langereis
- Department of Minimally Invasive Healthcare, Philips Research Eindhoven, Eindhoven, the Netherlands
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778
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Leung KCF, Lee SF, Wong CH, Chak CP, Lai JMY, Zhu XM, Wang YXJ, Sham KWY, Cheng CHK. Nanoparticle-DNA-polymer composites for hepatocellular carcinoma cell labeling, sensing, and magnetic resonance imaging. Methods 2013; 64:315-21. [PMID: 23811300 DOI: 10.1016/j.ymeth.2013.06.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 06/11/2013] [Indexed: 11/26/2022] Open
Abstract
This paper describes comparative studies and protocols in (1) self-assembling of ultrasmall superparamagnetic iron oxide nanoparticle (NP), circular plasmid DNA, and branched polyethylenimine (PEI) composites; (2) magnetofection; (3) gene delivery, (4) magnetic resonance imaging (MRI), and (5) cytotoxicity of the composites toward hepatocellular carcinoma HepG2 cells.
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Affiliation(s)
- Ken Cham-Fai Leung
- Department of Chemistry, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong Special Administrative Region; Institute of Creativity, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong Special Administrative Region; Institute of Molecular Functional Materials, Areas of Excellence, University Grants Committee, Hong Kong Special Administrative Region.
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779
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Lin J, Wang S, Huang P, Wang Z, Chen S, Niu G, Li W, He J, Cui D, Lu G, Chen X, Nie Z. Photosensitizer-loaded gold vesicles with strong plasmonic coupling effect for imaging-guided photothermal/photodynamic therapy. ACS NANO 2013; 7:5320-9. [PMID: 23721576 PMCID: PMC3709863 DOI: 10.1021/nn4011686] [Citation(s) in RCA: 473] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A multifunctional theranostic platform based on photosensitizer-loaded plasmonic vesicular assemblies of gold nanoparticles (GNPs) is developed for effective cancer imaging and treatment. The gold vesicles (GVs) composed of a monolayer of assembled GNPs show strong absorbance in the near-infrared (NIR) range of 650-800 nm, as a result of the plasmonic coupling effect between neighboring GNPs in the vesicular membranes. The strong NIR absorption and the capability of encapsulating photosensitizer Ce6 in GVs enable trimodality NIR fluorescence/thermal/photoacoustic imaging-guided synergistic photothermal/photodynamic therapy (PTT/PDT) with improved efficacy. The Ce6-loaded GVs (GV-Ce6) have the following characteristics: (i) high Ce6 loading efficiency (up to ~18.4 wt %; (ii) enhanced cellular uptake efficiency of Ce6; (iii) simultaneous trimodality NIR fluorescence/thermal/photoacoustic imaging; (iv) synergistic PTT/PDT treatment with improved efficacy using single wavelength continuous wave laser irradiation.
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Affiliation(s)
- Jing Lin
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
- Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shouju Wang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
- Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, 210000, China
| | - Peng Huang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
- Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhe Wang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
- Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361005, China
| | - Shouhui Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
- Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Wanwan Li
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Jie He
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Daxiang Cui
- Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guangming Lu
- Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, 210000, China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Zhihong Nie
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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780
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Murgia S, Bonacchi S, Falchi AM, Lampis S, Lippolis V, Meli V, Monduzzi M, Prodi L, Schmidt J, Talmon Y, Caltagirone C. Drug-loaded fluorescent cubosomes: versatile nanoparticles for potential theranostic applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6673-6679. [PMID: 23642193 DOI: 10.1021/la401047a] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work, monoolein-based cubosomes were doped with two fluorescent probes, namely, fluorescein and dansyl, properly modified with a hydrocarbon chain to increase their encapsulation efficiency within the monoolein palisade. The same nanocarriers were also loaded with quercetin, a hydrophobic molecule with potential anticancer activity. Particularly, the cubosomes doped with the modified fluorescein probe were successfully exploited for single living cell imaging. The physicochemical and photophysical characterizations reported here, along with the well-known ability of cubosomes in hosting molecules with pharmaceutical interest, strongly encourage the use of these innovative fluorescent nanocarriers for theranostic purposes.
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Affiliation(s)
- Sergio Murgia
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, Monserrato (CA), Italy.
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781
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Tian Q, Hu J, Zhu Y, Zou R, Chen Z, Yang S, Li R, Su Q, Han Y, Liu X. Sub-10 nm Fe3O4@Cu(2-x)S core-shell nanoparticles for dual-modal imaging and photothermal therapy. J Am Chem Soc 2013; 135:8571-7. [PMID: 23687972 DOI: 10.1021/ja4013497] [Citation(s) in RCA: 433] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Photothermal nanomaterials have recently attracted significant research interest due to their potential applications in biological imaging and therapeutics. However, the development of small-sized photothermal nanomaterials with high thermal stability remains a formidable challenge. Here, we report the rational design and synthesis of ultrasmall (<10 nm) Fe3O4@Cu2-xS core-shell nanoparticles, which offer both high photothermal stability and superparamagnetic properties. Specifically, these core-shell nanoparticles have proven effective as probes for T2-weighted magnetic resonance imaging and infrared thermal imaging because of their strong absorption at the near-infrared region centered around 960 nm. Importantly, the photothermal effect of the nanoparticles can be precisely controlled by varying the Cu content in the core-shell structure. Furthermore, we demonstrate in vitro and in vivo photothermal ablation of cancer cells using these multifunctional nanoparticles. The results should provide improved understanding of synergistic effect resulting from the integration of magnetism with photothermal phenomenon, important for developing multimode nanoparticle probes for biomedical applications.
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Affiliation(s)
- Qiwei Tian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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782
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Krasia-Christoforou T, Georgiou TK. Polymeric theranostics: using polymer-based systems for simultaneous imaging and therapy. J Mater Chem B 2013; 1:3002-3025. [PMID: 32261003 DOI: 10.1039/c3tb20191k] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Polymer-based nanomedicine is a large and fast growing field. Polymer-based systems have been extensively used as therapeutic carriers as well as bioimaging agents for example in tumour diagnosis. However, fewer polymeric systems have been able to combine both therapy and imaging in a new field that is called theranostics (theragnostics). This review aims to summarise the recent developments and trends on polymeric theranostics. Four different types of therapies/treatments are examined namely drug delivery, gene delivery, photodynamic therapy and hyperthermia treatment combined with different imaging moieties like magnetic resonance imaging agents, fluorescent agents and microbubbles for ultrasound imaging.
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Affiliation(s)
- Theodora Krasia-Christoforou
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus.
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783
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Ma Z, Xia H, Liu Y, Liu B, Chen W, Zhao Y. Applications of gold nanorods in biomedical imaging and related fields. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5720-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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784
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Shen J, Zhao L, Han G. Lanthanide-doped upconverting luminescent nanoparticle platforms for optical imaging-guided drug delivery and therapy. Adv Drug Deliv Rev 2013; 65:744-55. [PMID: 22626980 DOI: 10.1016/j.addr.2012.05.007] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 05/14/2012] [Accepted: 05/14/2012] [Indexed: 12/11/2022]
Abstract
Lanthanide-doped upconverting luminescent nanoparticles (UCNPs) are promising materials for optical imaging-guided drug delivery and therapy due to their unique optical and chemical properties. UCNPs absorb low energy near-infrared (NIR) light and emit high-energy shorter wavelength photons. Their special features allow them to overcome various problems associated with conventional imaging probes and to provide versatility for creating nanoplatforms with both imaging and therapeutic modalities. Here, we discuss several approaches to fabricate and utilize UCNPs for traceable drug delivery and therapy.
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Affiliation(s)
- Jie Shen
- Biochemistry and Molecular Pharmacology Department, University of Massachusetts-Medical School, 364 Plantation Street, LRB 806, Worcester, MA 01605, USA
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785
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Doane T, Burda C. Nanoparticle mediated non-covalent drug delivery. Adv Drug Deliv Rev 2013; 65:607-21. [PMID: 22664231 DOI: 10.1016/j.addr.2012.05.012] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 05/19/2012] [Accepted: 05/21/2012] [Indexed: 12/18/2022]
Abstract
The use of nanoparticles (NPs) for enhanced drug delivery has been heavily explored during the last decade. Within the field, it is has become increasingly apparent that the physical properties of the particles themselves dictate their efficacy, and the relevant non-covalent chemistry at the NP interface also influences how drugs are immobilized and delivered. In this review, we reflect on the physical chemistry of NP mediated drug delivery (and more specifically, non-covalent drug delivery) at the three main experimental stages of drug loading, NP-drug conjugate transport, and the resulting cellular drug delivery. Through a critical evaluation of advances in drug delivery within the last decade, an outlook for biomedical applications of nanoscale transport vectors will be presented.
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786
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787
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Hayashi K, Nakamura M, Sakamoto W, Yogo T, Miki H, Ozaki S, Abe M, Matsumoto T, Ishimura K. Superparamagnetic nanoparticle clusters for cancer theranostics combining magnetic resonance imaging and hyperthermia treatment. Theranostics 2013; 3:366-76. [PMID: 23781284 PMCID: PMC3677408 DOI: 10.7150/thno.5860] [Citation(s) in RCA: 193] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 02/27/2013] [Indexed: 12/22/2022] Open
Abstract
Superparamagnetic nanoparticles (SPIONs) could enable cancer theranostics if magnetic resonance imaging (MRI) and magnetic hyperthermia treatment (MHT) were combined. However, the particle size of SPIONs is smaller than the pores of fenestrated capillaries in normal tissues because superparamagnetism is expressed only at a particle size <10 nm. Therefore, SPIONs leak from the capillaries of normal tissues, resulting in low accumulation in tumors. Furthermore, MHT studies have been conducted in an impractical way: direct injection of magnetic materials into tumor and application of hazardous alternating current (AC) magnetic fields. To accomplish effective enhancement of MRI contrast agents in tumors and inhibition of tumor growth by MHT with intravenous injection and a safe AC magnetic field, we clustered SPIONs not only to prevent their leakage from fenestrated capillaries in normal tissues, but also for increasing their relaxivity and the specific absorption rate. We modified the clusters with folic acid (FA) and polyethylene glycol (PEG) to promote their accumulation in tumors. SPION clustering and cluster modification with FA and PEG were achieved simultaneously via the thiol-ene click reaction. Twenty-four hours after intravenous injection of FA- and PEG-modified SPION nanoclusters (FA-PEG-SPION NCs), they accumulated locally in cancer (not necrotic) tissues within the tumor and enhanced the MRI contrast. Furthermore, 24 h after intravenous injection of the NCs, the mice were placed in an AC magnetic field with H = 8 kA/m and f = 230 kHz (Hf = 1.8×109 A/m∙s) for 20 min. The tumors of the mice underwent local heating by application of an AC magnetic field. The temperature of the tumor was higher than the surrounding tissues by ≈6°C at 20 min after treatment. Thirty-five days after treatment, the tumor volume of treated mice was one-tenth that of the control mice. Furthermore, the treated mice were alive after 12 weeks; control mice died up to 8 weeks after treatment.
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788
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Maldonado CR, Gómez-Blanco N, Jauregui-Osoro M, Brunton VG, Yate L, Mareque-Rivas JC. QD-filled micelles which combine SPECT and optical imaging with light-induced activation of a platinum(IV) prodrug for anticancer applications. Chem Commun (Camb) 2013; 49:3985-7. [PMID: 23552819 DOI: 10.1039/c3cc39104c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fac-[(99m)Tc(OH2)3(CO)3](+) complex reacts with QD-filled micelles to create a bimodal SPECT-optical imaging probe which upon visible light irradiation generates cisplatin from an inert Pt(IV) prodrug.
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789
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Bünzli JCG. Grand challenges in inorganic chemistry: toward better life quality and a more sustainable world. Front Chem 2013; 1:2. [PMID: 24790932 PMCID: PMC3982575 DOI: 10.3389/fchem.2013.00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 02/21/2013] [Indexed: 11/16/2022] Open
Affiliation(s)
- Jean-Claude G Bünzli
- Laboratory of Lanthanides Supramolecular Chemistry, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne Lausanne, Switzerland
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790
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Schütz CA, Juillerat-Jeanneret L, Mueller H, Lynch I, Riediker M. Therapeutic nanoparticles in clinics and under clinical evaluation. Nanomedicine (Lond) 2013; 8:449-67. [DOI: 10.2217/nnm.13.8] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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791
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A multifunctional heptamethine near-infrared dye for cancer theranosis. Biomaterials 2013; 34:2244-51. [DOI: 10.1016/j.biomaterials.2012.11.057] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 11/29/2012] [Indexed: 11/21/2022]
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792
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Abstract
A novel remotely triggered drug vehicle having multimodal imaging functionality was developed. It exhibits magnetic resonance (MR) imaging, ultrasound (US) imaging, encapsulation of a hydrophobic agent and US-triggered release behavior. Lipophilic superparamagnetic iron oxide (SPIO) nanoparticles were self-assembled with an amphiphilic chitosan derivative, carboxymethyl hexanoyl chitosan (CHC), to form superparamagnetic CHC/SPIO micelles and then loaded with camptothecin (a hydrophobic anticancer agent). The superparamagnetic micelles were then conjugated with albumin-based microbubbles (MBs) to form superparamagnetic micelle-decorated MBs (CHC/SPIO-decorated MBs). The albumin MBs and CHC/SPIO-decorated MBs both demonstrated in vitro concentration-dependent US imaging contrast. Interestingly, the in vitro US contrast was enhanced by decoration. In vivo US images showed that the B-mode contrast of the proposed vehicles could be clearly observed in the veins and arteries of Sprague-Dawley rats. Moreover, the proposed vehicle exhibited significant US-triggered release behavior under therapeutic US sonication at a frequency of 1MHz and power density of 2.4Wcm(-2) for 30min. However, similar behavior was not observed under diagnostic US bombardment at a frequency of 12MHz and mechanical index of 0.5. On the other hand, in vitro MR images of the CHC/SPIO-micelle-decorated MBs also revealed a significant concentration-dependent T(2) (spin-spin relaxation time) contrast due to their decoration with superparamagnetic micelles. Most importantly, the r(2)(∗)-r(2) value of the CHC/SPIO-decorated MBs decreased after therapeutic US bombardment for 30min. This might be considered as an index to probe destruction of the drug-loaded CHC/SPIO micelles.
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793
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Khlebtsov N, Bogatyrev V, Dykman L, Khlebtsov B, Staroverov S, Shirokov A, Matora L, Khanadeev V, Pylaev T, Tsyganova N, Terentyuk G. Analytical and theranostic applications of gold nanoparticles and multifunctional nanocomposites. Theranostics 2013; 3:167-80. [PMID: 23471188 PMCID: PMC3590586 DOI: 10.7150/thno.5716] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 01/22/2013] [Indexed: 01/10/2023] Open
Abstract
Gold nanoparticles (GNPs) and GNP-based multifunctional nanocomposites are the subject of intensive studies and biomedical applications. This minireview summarizes our recent efforts in analytical and theranostic applications of engineered GNPs and nanocomposites by using plasmonic properties of GNPs and various optical techniques. Specifically, we consider analytical biosensing; visualization and bioimaging of bacterial, mammalian, and plant cells; photodynamic treatment of pathogenic bacteria; and photothermal therapy of xenografted tumors. In addition to recently published reports, we discuss new data on dot immunoassay diagnostics of mycobacteria, multiplexed immunoelectron microscopy analysis of Azospirillum brasilense, materno-embryonic transfer of GNPs in pregnant rats, and combined photodynamic and photothermal treatment of rat xenografted tumors with gold nanorods covered by a mesoporous silica shell doped with hematoporphyrin.
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794
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Ragheb RRT, Kim D, Bandyopadhyay A, Chahboune H, Bulutoglu B, Ezaldein H, Criscione JM, Fahmy TM. Induced clustered nanoconfinement of superparamagnetic iron oxide in biodegradable nanoparticles enhances transverse relaxivity for targeted theranostics. Magn Reson Med 2013; 70:1748-60. [PMID: 23401099 DOI: 10.1002/mrm.24622] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 11/12/2012] [Accepted: 12/11/2012] [Indexed: 01/03/2023]
Abstract
PURPOSE Combined therapeutic and diagnostic agents, "theranostics" are emerging valuable tools for noninvasive imaging and drug delivery. Here, we report on a solid biodegradable multifunctional nanoparticle that combines both features. METHODS Poly(lactide-co-glycolide) nanoparticles were engineered to confine superparamagnetic iron oxide contrast for magnetic resonance imaging while enabling controlled drug delivery and targeting to specific cells. To achieve this dual modality, fatty acids were used as anchors for surface ligands and for encapsulated iron oxide in the polymer matrix. RESULTS We demonstrate that fatty acid modified iron oxide prolonged retention of the contrast agent in the polymer matrix during degradative release of drug. Antibody-fatty acid surface modification facilitated cellular targeting and subsequent internalization in cells while inducing clustering of encapsulated fatty-acid modified superparamagnetic iron oxide during particle formulation. This induced clustered confinement led to an aggregation within the nanoparticle and, hence, higher transverse relaxivity, r2 , (294 mM(-1) s(-1) ) compared with nanoparticles without fatty-acid ligands (160 mM(-1) s(-1) ) and higher than commercially available superparamagnetic iron oxide nanoparticles (89 mM(-1) s(-1) ). CONCLUSION Clustering of superparamagnetic iron oxide in poly(lactide-co-glycolide) did not affect the controlled release of encapsulated drugs such as methotrexate or clodronate and their subsequent pharmacological activity, thus highlighting the full theranostic capability of our system.
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Affiliation(s)
- Ragy R T Ragheb
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA
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795
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Affiliation(s)
- Sonke Svenson
- Drug Delivery Solutions
LLC, 16 Temple Street, Arlington,
Massachusetts 02476, United States
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796
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Raschzok N, Langer CM, Schmidt C, Lerche KH, Billecke N, Nehls K, Schlüter NB, Leder A, Rohn S, Mogl MT, Lüdemann L, Stelter L, Teichgräber UK, Neuhaus P, Sauer IM. Functionalizable silica-based micron-sized iron oxide particles for cellular magnetic resonance imaging. Cell Transplant 2013; 22:1959-70. [PMID: 23294541 DOI: 10.3727/096368912x661382] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Cellular therapies require methods for noninvasive visualization of transplanted cells. Micron-sized iron oxide particles (MPIOs) generate a strong contrast in magnetic resonance imaging (MRI) and are therefore ideally suited as an intracellular contrast agent to image cells under clinical conditions. However, MPIOs were previously not applicable for clinical use. Here, we present the development and evaluation of silica-based micron-sized iron oxide particles (sMPIOs) with a functionalizable particle surface. Particles with magnetite content of >40% were composed using the sol-gel process. The particle surfaces were covered with COOH groups. Fluorescein, poly-L-lysine (PLL), and streptavidin (SA) were covalently attached. Monodisperse sMPIOs had an average size of 1.18 µm and an iron content of about 1.0 pg Fe/particle. Particle uptake, toxicity, and imaging studies were performed using HuH7 cells and human and rat hepatocytes. sMPIOs enabled rapid cellular labeling within 4 h of incubation; PLL-modified particles had the highest uptake. In T2*-weighted 3.0 T MRI, the detection threshold in agarose was 1,000 labeled cells, whereas in T1-weighted LAVA sequences, at least 10,000 cells were necessary to induce sufficient contrast. Labeling was stable and had no adverse effects on labeled cells. Silica is a biocompatible material that has been approved for clinical use. sMPIOs could therefore be suitable for future clinical applications in cellular MRI, especially in settings that require strong cellular contrast. Moreover, the particle surface provides the opportunity to create multifunctional particles for targeted delivery and diagnostics.
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Affiliation(s)
- Nathanael Raschzok
- General, Visceral, and Transplantation Surgery, Experimental Surgery and Regenerative Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
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797
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Kadir MA, Lee C, Han HS, Kim BS, Ha EJ, Jeong J, Song JK, Lee SG, An SSA, Paik HJ. In situ formation of polymer–protein hybrid spherical aggregates from (nitrilotriacetic acid)-end-functionalized polystyrenes and His-tagged proteins. Polym Chem 2013. [DOI: 10.1039/c2py21077k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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798
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Trapani M, Romeo A, Parisi T, Sciortino MT, Patanè S, Villari V, Mazzaglia A. Supramolecular hybrid assemblies based on gold nanoparticles, amphiphilic cyclodextrin and porphyrins with combined phototherapeutic action. RSC Adv 2013. [DOI: 10.1039/c3ra40204e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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799
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Wang J, Velders AH, Gianolio E, Aime S, Vergeldt FJ, Van As H, Yan Y, Drechsler M, de Keizer A, Cohen Stuart MA, van der Gucht J. Controlled mixing of lanthanide(iii) ions in coacervate core micelles. Chem Commun (Camb) 2013; 49:3736-8. [DOI: 10.1039/c3cc39148e] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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800
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Gallo J, Long NJ, Aboagye EO. Magnetic nanoparticles as contrast agents in the diagnosis and treatment of cancer. Chem Soc Rev 2013; 42:7816-33. [DOI: 10.1039/c3cs60149h] [Citation(s) in RCA: 175] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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