301
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Sousa-Herves A, Novoa-Carballal R, Riguera R, Fernandez-Megia E. GATG dendrimers and PEGylated block copolymers: from synthesis to bioapplications. AAPS JOURNAL 2014; 16:948-61. [PMID: 25004824 DOI: 10.1208/s12248-014-9642-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 06/20/2014] [Indexed: 12/18/2022]
Abstract
Dendrimers are synthetic macromolecules composed of repetitive layers of branching units that emerge from a central core. They are characterized by a tunable size and precise number of peripheral groups which determine their physicochemical properties and function. Their high multivalency, functional surface, and globular architecture with diameters in the nanometer scale makes them ideal candidates for a wide range of applications. Gallic acid-triethylene glycol (GATG) dendrimers have attracted our attention as a promising platform in the biomedical field because of their high tunability and versatility. The presence of terminal azides in GATG dendrimers and poly(ethylene glycol) (PEG)-dendritic block copolymers allows their efficient functionalization with a variety of ligands of biomedical relevance including anionic and cationic groups, carbohydrates, peptides, or imaging agents. The resulting functionalized dendrimers have found application in drug and gene delivery, as antiviral agents and for the treatment of neurodegenerative diseases, in diagnosis and as tools to study multivalent carbohydrate recognition and dendrimer dynamics. Herein, we present an account on the preparation and recent applications of GATG dendrimers in these fields.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain
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302
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Bennett KM, Jo JI, Cabral H, Bakalova R, Aoki I. MR imaging techniques for nano-pathophysiology and theranostics. Adv Drug Deliv Rev 2014; 74:75-94. [PMID: 24787226 DOI: 10.1016/j.addr.2014.04.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 03/02/2014] [Accepted: 04/20/2014] [Indexed: 11/25/2022]
Abstract
The advent of nanoparticle DDSs (drug delivery systems, nano-DDSs) is opening new pathways to understanding physiology and pathophysiology at the nanometer scale. A nano-DDS can be used to deliver higher local concentrations of drugs to a target region and magnify therapeutic effects. However, interstitial cells or fibrosis in intractable tumors, as occurs in pancreatic or scirrhous stomach cancer, tend to impede nanoparticle delivery. Thus, it is critical to optimize the type and size of nanoparticles to reach the target. High-resolution 3D imaging provides a means of "seeing" the nanoparticle distribution and therapeutic effects. We introduce the concept of "nano-pathophysiological imaging" as a strategy for theranostics. The strategy consists of selecting an appropriate nano-DDS and rapidly evaluating drug effects in vivo to guide the next round of therapy. In this article we classify nano-DDSs by component carrier materials and present an overview of the significance of nano-pathophysiological MRI.
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303
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Wu X, Li C, Liao S, Li L, Wang T, Su Z, Wang C, Zhao J, Sui C, Lin J. Silica-Encapsulated Gd3+-Aggregated Gold Nanoclusters for In Vitro and In Vivo Multimodal Cancer Imaging. Chemistry 2014; 20:8876-82. [DOI: 10.1002/chem.201403202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Indexed: 11/12/2022]
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304
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Tirotta I, Mastropietro A, Cordiglieri C, Gazzera L, Baggi F, Baselli G, Bruzzone MG, Zucca I, Cavallo G, Terraneo G, Baldelli Bombelli F, Metrangolo P, Resnati G. A Superfluorinated Molecular Probe for Highly Sensitive in Vivo19F-MRI. J Am Chem Soc 2014; 136:8524-7. [DOI: 10.1021/ja503270n] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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305
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Doan BT, Crauste-Manciet S, Bourgaux C, Dhotel H, Jugé L, Brossard D, Scherman D, Bessodes M, Cuenod CA, Mignet N. Lipidic spherulites as magnetic resonance imaging contrast agents. NEW J CHEM 2014. [DOI: 10.1039/c4nj00571f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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306
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Martinelli J, Thangavel K, Tei L, Botta M. Dendrimeric β-Cyclodextrin/GdIIIChelate Supramolecular Host-Guest Adducts as High-Relaxivity MRI Probes. Chemistry 2014; 20:10944-52. [DOI: 10.1002/chem.201402418] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Indexed: 11/11/2022]
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307
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Hu YH. The first magnetic-nanoparticle-free carbon-based contrast agent of magnetic-resonance imaging-fluorinated graphene oxide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1451-1452. [PMID: 24376224 DOI: 10.1002/smll.201303644] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Indexed: 06/03/2023]
Affiliation(s)
- Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, 49931, USA
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308
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Cao L, Li B, Yi P, Zhang H, Dai J, Tan B, Deng Z. The interplay of T1- and T2-relaxation on T1-weighted MRI of hMSCs induced by Gd-DOTA-peptides. Biomaterials 2014; 35:4168-74. [DOI: 10.1016/j.biomaterials.2014.01.073] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 01/29/2014] [Indexed: 01/11/2023]
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309
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Ling D, Park W, Park SJ, Lu Y, Kim KS, Hackett MJ, Kim BH, Yim H, Jeon YS, Na K, Hyeon T. Multifunctional Tumor pH-Sensitive Self-Assembled Nanoparticles for Bimodal Imaging and Treatment of Resistant Heterogeneous Tumors. J Am Chem Soc 2014; 136:5647-55. [DOI: 10.1021/ja4108287] [Citation(s) in RCA: 387] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Daishun Ling
- Center
for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Wooram Park
- Department
of Biotechnology, The Catholic University of Korea, Bucheon-si, Gyeonggi-do 420-743, Korea
| | - Sin-jung Park
- Department
of Biotechnology, The Catholic University of Korea, Bucheon-si, Gyeonggi-do 420-743, Korea
| | - Yang Lu
- Center
for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Kyoung Sub Kim
- Department
of Biotechnology, The Catholic University of Korea, Bucheon-si, Gyeonggi-do 420-743, Korea
| | - Michael J. Hackett
- Center
for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Byung Hyo Kim
- Center
for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Hyeona Yim
- Department
of Biotechnology, The Catholic University of Korea, Bucheon-si, Gyeonggi-do 420-743, Korea
| | - Yong Sun Jeon
- Department
of Radiology, Inha University College of Medicine, Incheon 420-751, Korea
| | - Kun Na
- Department
of Biotechnology, The Catholic University of Korea, Bucheon-si, Gyeonggi-do 420-743, Korea
| | - Taeghwan Hyeon
- Center
for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
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310
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Xue S, Qiao J, Jiang J, Hubbard K, White N, Wei L, Li S, Liu ZR, Yang JJ. Design of ProCAs (protein-based Gd(3+) MRI contrast agents) with high dose efficiency and capability for molecular imaging of cancer biomarkers. Med Res Rev 2014; 34:1070-99. [PMID: 24615853 DOI: 10.1002/med.21313] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Magnetic resonance imaging (MRI) is the leading imaging technique for disease diagnostics, providing high resolution, three-dimensional images noninvasively. MRI contrast agents are designed to improve the contrast and sensitivity of MRI. However, current clinically used MRI contrast agents have relaxivities far below the theoretical upper limit, which largely prevent advancing molecular imaging of biomarkers with desired sensitivity and specificity. This review describes current progress in the development of a new class of protein-based MRI contrast agents (ProCAs) with high relaxivity using protein design to optimize the parameters that govern relaxivity. Further, engineering with targeting moiety allows these contrast agents to be applicable for molecular imaging of prostate cancer biomarkers by MRI. The developed protein-based contrast agents also exhibit additional in vitro and in vivo advantages for molecular imaging of disease biomarkers, such as high metal-binding stability and selectivity, reduced toxicity, proper blood circulation time, and higher permeability in tumor tissue in addition to improved relaxivities.
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Affiliation(s)
- Shenghui Xue
- Departments of Chemistry and Biology, Georgia State University, Atlanta, Georgia; Center for Diagnostics & Therapeutics (CDT), Georgia State University, Atlanta, Georgia; Center for Biotechnology and Drug Design, Georgia State University, Atlanta, Georgia
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311
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Ansari C, Tikhomirov GA, Hong SH, Falconer RA, Loadman PM, Gill JH, Castaneda R, Hazard FK, Tong L, Lenkov OD, Felsher DW, Rao J, Daldrup-Link HE. Development of novel tumor-targeted theranostic nanoparticles activated by membrane-type matrix metalloproteinases for combined cancer magnetic resonance imaging and therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:566-75, 417. [PMID: 24038954 PMCID: PMC3946335 DOI: 10.1002/smll.201301456] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/03/2013] [Indexed: 05/05/2023]
Abstract
A major drawback with current cancer therapy is the prevalence of unrequired dose-limiting toxicity to non-cancerous tissues and organs, which is further compounded by a limited ability to rapidly and easily monitor drug delivery, pharmacodynamics and therapeutic response. In this report, the design and characterization of novel multifunctional "theranostic" nanoparticles (TNPs) is described for enzyme-specific drug activation at tumor sites and simultaneous in vivo magnetic resonance imaging (MRI) of drug delivery. TNPs are synthesized by conjugation of FDA-approved iron oxide nanoparticles ferumoxytol to an MMP-activatable peptide conjugate of azademethylcolchicine (ICT), creating CLIO-ICTs (TNPs). Significant cell death is observed in TNP-treated MMP-14 positive MMTV-PyMT breast cancer cells in vitro, but not MMP-14 negative fibroblasts or cells treated with ferumoxytol alone. Intravenous administration of TNPs to MMTV-PyMT tumor-bearing mice and subsequent MRI demonstrates significant tumor selective accumulation of the TNP, an observation confirmed by histopathology. Treatment with CLIO-ICTs induces a significant antitumor effect and tumor necrosis, a response not observed with ferumoxytol. Furthermore, no toxicity or cell death is observed in normal tissues following treatment with CLIO-ICTs, ICT, or ferumoxytol. These findings demonstrate proof of concept for a new nanotemplate that integrates tumor specificity, drug delivery and in vivo imaging into a single TNP entity through attachment of enzyme-activated prodrugs onto magnetic nanoparticles. This novel approach holds the potential to significantly improve targeted cancer therapies, and ultimately enable personalized therapy regimens.
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Affiliation(s)
- Celina Ansari
- Molecular Imaging Program at Stanford and Department of Radiology, Stanford University, 725 Welch Road, Rm 1665, Stanford, CA, 94305-5614, USA
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312
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Shen YC, Zhou X, Xia XT, Yan GP, Dong JP, Lan XL, Guo JF, Zhang YX. Synthesis and properties of neutral gadolinium and technetium-99m-labeled complexes. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.892591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Yan-Chun Shen
- School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Xin Zhou
- School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Xiao-Tian Xia
- Center for PET of Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guo-Ping Yan
- School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Ju-Ping Dong
- School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Xiao-Li Lan
- Center for PET of Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun-Fang Guo
- School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Yong-Xue Zhang
- Center for PET of Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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313
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Laznickova A, Biricova V, Laznicek M, Hermann P. Mono(pyridine-N-oxide) DOTA analog and its G1/G4-PAMAM dendrimer conjugates labeled with 177Lu: Radiolabeling and biodistribution studies. Appl Radiat Isot 2014; 84:70-7. [DOI: 10.1016/j.apradiso.2013.10.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 10/22/2013] [Accepted: 10/26/2013] [Indexed: 02/05/2023]
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314
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Huang G, Hu J, Zhang H, Zhou Z, Chi X, Gao J. Highly magnetic iron carbide nanoparticles as effective T(2) contrast agents. NANOSCALE 2014; 6:726-730. [PMID: 24287667 DOI: 10.1039/c3nr04691e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper reports that iron carbide nanoparticles with high air-stability and strong saturation magnetization can serve as effective T2 contrast agents for magnetic resonance imaging. Fe5C2 nanoparticles (~20 nm in diameter) exhibit strong contrast enhancement with an r2 value of 283.2 mM(-1) S(-1), which is about twice as high as that of spherical Fe3O4 nanoparticles (~140.9 mM(-1) S(-1)). In vivo experiments demonstrate that Fe5C2 nanoparticles are able to produce much more significant MRI contrast enhancement than conventional Fe3O4 nanoparticles in living subjects, which holds great promise in biomedical applications.
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Affiliation(s)
- Guoming Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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315
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Li T, Qian Y, Ye M, Tang J, Hu H, Shen Y. Synthesis and Properties of a Biodegradable Dendritic Magnetic Resonance Imaging Contrast Agent. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201300889] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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316
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Binding of a dimeric manganese porphyrin to serum albumin: towards a gadolinium-free blood-pool T
1 MRI contrast agent. J Biol Inorg Chem 2014; 19:229-35. [DOI: 10.1007/s00775-013-1073-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 12/05/2013] [Indexed: 10/25/2022]
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317
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Li Y, Laurent S, Esser L, Elst LV, Muller RN, Lowe AB, Boyer C, Davis TP. The precise molecular location of gadolinium atoms has a significant influence on the efficacy of nanoparticulate MRI positive contrast agents. Polym Chem 2014. [DOI: 10.1039/c3py01676e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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318
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Debroye E, Eliseeva SV, Laurent S, Vander Elst L, Muller RN, Parac-Vogt TN. Micellar self-assemblies of gadolinium(iii)/europium(iii) amphiphilic complexes as model contrast agents for bimodal imaging. Dalton Trans 2014; 43:3589-600. [DOI: 10.1039/c3dt52842a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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319
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Menelaou M, Georgoula K, Simeonidis K, Dendrinou-Samara C. Evaluation of nickel ferrite nanoparticles coated with oleylamine by NMR relaxation measurements and magnetic hyperthermia. Dalton Trans 2014; 43:3626-36. [DOI: 10.1039/c3dt52860j] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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320
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Fuentes-Paniagua E, Hernández-Ros JM, Sánchez-Milla M, Camero MA, Maly M, Pérez-Serrano J, Copa-Patiño JL, Sánchez-Nieves J, Soliveri J, Gómez R, Javier de la Mata F. Carbosilane cationic dendrimers synthesized by thiol–ene click chemistry and their use as antibacterial agents. RSC Adv 2014. [DOI: 10.1039/c3ra45408h] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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321
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Bastakoti BP, Sukegawa H, Wu KCW, Yamauchi Y. Synthesis of porous iron oxide microspheres by a double hydrophilic block copolymer. RSC Adv 2014. [DOI: 10.1039/c3ra47490a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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322
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Atabaev TS, Lee JH, Han DW, Kim HK, Hwang YH. Ultrafine PEG-capped gadolinia nanoparticles: cytotoxicity and potential biomedical applications for MRI and luminescent imaging. RSC Adv 2014. [DOI: 10.1039/c4ra03560g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ultrafine PEG-capped gadolinium oxide NPs doped with erbium ions, which could serve as a dual-imaging agent for MRI/optical imaging were synthesized using a simple, green, and quick method.
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Affiliation(s)
- Timur Sh. Atabaev
- Department of Nanomaterials Engineering
- College of Nanoscience and Nanotechnology Pusan National University
- Miryang 627-706, Republic of Korea
| | - Jong Ho Lee
- Department of Cogno-Mechatronics Engineering
- Pusan National University
- Busan 609-735, Republic of Korea
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering
- Pusan National University
- Busan 609-735, Republic of Korea
| | - Hyung-Kook Kim
- Department of Nanomaterials Engineering
- College of Nanoscience and Nanotechnology Pusan National University
- Miryang 627-706, Republic of Korea
| | - Yoon-Hwae Hwang
- Department of Nanomaterials Engineering
- College of Nanoscience and Nanotechnology Pusan National University
- Miryang 627-706, Republic of Korea
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323
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Debroye E, Parac-Vogt TN. Towards polymetallic lanthanide complexes as dual contrast agents for magnetic resonance and optical imaging. Chem Soc Rev 2014; 43:8178-92. [DOI: 10.1039/c4cs00201f] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In the spotlight: polymetallic complexes permitting efficient sensitization of lanthanide luminescence and exhibiting favorable relaxometric properties.
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Affiliation(s)
- Elke Debroye
- Department of Chemistry
- KU Leuven
- 3001 Leuven, Belgium
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324
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Cheng W, Rajendran R, Ren W, Gu L, Zhang Y, Chuang KH, Liu Y. A facile synthetic approach to a biodegradable polydisulfide MRI contrast agent. J Mater Chem B 2014; 2:5295-5301. [DOI: 10.1039/c4tb00413b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A biodegradable novel polydisulfide MRI contrast agent forming self-assembly in aqueous solution with a low cytotoxicity and a higherr1is promising for producing better MRI imaging with fewer side effects.
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Affiliation(s)
- Weiren Cheng
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- , Singapore
- Department of Biomedical Engineering
- National University of Singapore
| | - Reshmi Rajendran
- Singapore Bioimaging Consortium
- A*STAR (Agency for Science, Technology and Research)
- , Singapore
| | - Wei Ren
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- , Singapore
| | - Liuqun Gu
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- , Singapore
| | - Yong Zhang
- Department of Biomedical Engineering
- National University of Singapore
- , Singapore
| | - Kai-Hsiang Chuang
- Singapore Bioimaging Consortium
- A*STAR (Agency for Science, Technology and Research)
- , Singapore
| | - Ye Liu
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- , Singapore
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325
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Thirunarayanan A, Raja S, Mohanraj G, Rajakumar P. Synthesis of chiral core based triazole dendrimers with m-terphenyl surface unit and their antibacterial studies. RSC Adv 2014. [DOI: 10.1039/c4ra04967e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Antibacterial activity against Shigella dysenteriae, Staphylococcus aureus and Serratia marcescen was studied with S-BINOL based triazole dendrimers 1, 2 and 3 with m-terphenyl surface units. Supported by molecular docking studies, the activity dendrimer 2 was comparable to that of streptomycin.
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Affiliation(s)
- Ayyavu Thirunarayanan
- Department of Organic Chemistry
- University of Madras
- Maraimalai Campus (Guindy)
- Chennai – 600 025, India
| | - Sebastian Raja
- Department of Organic Chemistry
- University of Madras
- Maraimalai Campus (Guindy)
- Chennai – 600 025, India
| | - Gunasekaran Mohanraj
- Centre for Advanced Studies in Botany
- University of Madras
- Maraimalai Campus (Guindy)
- Chennai-600 025, India
| | - Perumal Rajakumar
- Department of Organic Chemistry
- University of Madras
- Maraimalai Campus (Guindy)
- Chennai – 600 025, India
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326
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Liu D, He C, Poon C, Lin W. Theranostic nanoscale coordination polymers for magnetic resonance imaging and bisphosphonate delivery. J Mater Chem B 2014; 2:8249-8255. [DOI: 10.1039/c4tb00751d] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mn-zoledronate NCP carries 63 wt% of zoledronate for cancer therapy and 13 wt% of Mn2+ for T1-weighted magnetic resonance imaging.
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Affiliation(s)
- Demin Liu
- Department of Chemistry
- University of Chicago
- Chicago, USA
| | - Chunbai He
- Department of Chemistry
- University of Chicago
- Chicago, USA
| | | | - Wenbin Lin
- Department of Chemistry
- University of Chicago
- Chicago, USA
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327
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Garofalo A, Parat A, Bordeianu C, Ghobril C, Kueny-Stotz M, Walter A, Jouhannaud J, Begin-Colin S, Felder-Flesch D. Efficient synthesis of small-sized phosphonated dendrons: potential organic coatings of iron oxide nanoparticles. NEW J CHEM 2014. [DOI: 10.1039/c4nj00654b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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328
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Molecular imaging of EGFR/HER2 cancer biomarkers by protein MRI contrast agents. J Biol Inorg Chem 2013; 19:259-70. [PMID: 24366655 DOI: 10.1007/s00775-013-1076-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/06/2013] [Indexed: 12/22/2022]
Abstract
Epidermal growth factor receptor (EGFR) and HER2 are major prognosis biomarkers and drug targets overexpressed in various types of cancer cells. There is a pressing need to develop MRI contrast agents capable of enhancing the contrast between normal tissues and tumors with high relaxivity, capable of targeting tumors, and with high intratumoral distribution and minimal toxicity. In this review, we first discuss EGFR signaling and its role in tumor progression as a major drug target. We then report our progress in the development of protein contrast agents with significant improvement of both r1 and r2 relaxivities, pharmacokinetics, in vivo retention time, and in vivo dose efficiency. Finally, we report our effort in the development of EGFR-targeted protein contrast agents with the capability to cross the endothelial boundary and with good tissue distribution across the entire tumor mass. The noninvasive capability of MRI to visualize spatially and temporally the intratumoral distribution as well as quantify the levels of EGFR and HER2 would greatly improve our ability to track changes of the biomarkers during tumor progression, monitor treatment efficacy, aid in patient selection, and further develop novel targeted therapies for clinical application.
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329
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Wang F, Liu J. Nanodiamond decorated liposomes as highly biocompatible delivery vehicles and a comparison with carbon nanotubes and graphene oxide. NANOSCALE 2013; 5:12375-82. [PMID: 24162019 DOI: 10.1039/c3nr04143c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Studying interactions between nano-carbons and lipid membranes is important for multiplexed drug delivery, device fabrication and for understanding toxicity. Herein, we report that nanodiamond (ND, sp(3) carbon) forms a complex with highly biocompatible zwitterionic liposomes based on hydrogen bonding, which is confirmed by pH-dependent and urea-dependent assays. Despite such weak interaction, the complex is highly stable. Comparisons were made with two sp(2) carbons: nanoscale graphene oxide (NGO) and carbon nanotubes (CNTs), where CNT adsorption is the weakest. Adsorption of the nano-carbons does not induce liposome leakage or affect lipid phase transition temperature. Therefore, the potential toxicity of nano-carbons is unlikely to be related to direct membrane damage. ND facilitates cellular uptake of liposomes and co-delivery of negatively charged calcein and positively charged doxorubicin has been demonstrated. ND has the lowest toxicity, while CNTs and NGO are slightly more toxic. The effect of introducing fusogenic lipids and cholesterol was further studied to understand the effect of lipid formulation.
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Affiliation(s)
- Feng Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.
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330
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Synthesis and Characterisation of First Generation Luminescent Lanthanide Complexes Suitable for Being Adapted for Uptake via the Mannose Receptor. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/498598] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
With the aim of directing lanthanide complex uptake via the mannose receptor, a first generation of luminescent lanthanide complexes has been developed with an α-D-mannose targeting motif. Four complexes were produced to investigate photophysical properties and determine the effect of the coordinated mannose residue on emission intensity. The free hydroxyls of the α-D-mannose residue quenched lanthanide phosphorescence due to their close proximity, though they did not bind the lanthanide centre as observed by q-values ≈1.0 for all complexes between pH 3 and 10. Fluorescent emission was found to vary significantly with pH, though phosphorescent emission was relatively insensitive to pH. This lack of pH sensitivity has the potential to provide stable emission for the visualisation of the endosome-lysosome system where acidic pH is often encountered.
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331
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Valetti S, Mura S, Stella B, Couvreur P. Rational design for multifunctional non-liposomal lipid-based nanocarriers for cancer management: theory to practice. J Nanobiotechnology 2013; 11 Suppl 1:S6. [PMID: 24564841 PMCID: PMC4029540 DOI: 10.1186/1477-3155-11-s1-s6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Nanomedicines have gained more and more attention in cancer therapy thanks to their ability to enhance the tumour accumulation and the intracellular uptake of drugs while reducing their inactivation and toxicity. In parallel, nanocarriers have been successfully employed as diagnostic tools increasing imaging resolution holding great promises both in preclinical research and in clinical settings. Lipid-based nanocarriers are a class of biocompatible and biodegradable vehicles that provide advanced delivery of therapeutic and imaging agents, improving pharmacokinetic profile and safety. One of most promising engineering challenges is the design of innovative and versatile multifunctional targeted nanotechnologies for cancer treatment and diagnosis. This review aims to highlight rational approaches to design multifunctional non liposomal lipid-based nanocarriers providing an update of literature in this field.
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332
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Ultrahigh relaxivity and safe probes of manganese oxide nanoparticles for in vivo imaging. Sci Rep 2013; 3:3424. [PMID: 24305731 PMCID: PMC4070373 DOI: 10.1038/srep03424] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 11/18/2013] [Indexed: 12/31/2022] Open
Abstract
Mn-based nanoparticles (NPs) have emerged as new class of probes for magnetic resonance imaging due to the impressive contrast ability. However, the reported Mn-based NPs possess low relaxivity and there are no immunotoxicity data regarding Mn-based NPs as contrast agents. Here, we demonstrate the ultrahigh relaxivity of water protons of 8.26 mM(-1) s(-1) from the Mn3O4 NPs synthesized by a simple and green technique, which is twice higher than that of commercial gadolinium (Gd)-based contrast agents (4.11 mM(-1) s(-1)) and the highest value reported to date for Mn-based NPs. We for the first time demonstrate these Mn3O4 NPs biocompatibilities both in vitro and in vivo are satisfactory based on systematical studies of the intrinsic toxicity including cell viability of human nasopharyngeal carcinoma cells, normal nasopharyngeal epithelium, apoptosis in cells and in vivo immunotoxicity. These findings pave the way for the practical clinical diagnosis of Mn based NPs as safe probes for in vivo imaging.
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333
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Vinš P, Vermachová M, Drašar P, del Barrio M, Jarne C, Cebolla VL, de Cózar A, Zangi R, Cossío FP. Size and branching effects on the fluorescence of benzylic dendrimers possessing one apigenin fluorophore at the core. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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334
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Basuki JS, Duong HTT, Macmillan A, Erlich RB, Esser L, Akerfeldt MC, Whan RM, Kavallaris M, Boyer C, Davis TP. Using fluorescence lifetime imaging microscopy to monitor theranostic nanoparticle uptake and intracellular doxorubicin release. ACS NANO 2013; 7:10175-10189. [PMID: 24131276 DOI: 10.1021/nn404407g] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We describe the synthesis of iron oxide nanoparticles (IONPs) with excellent colloidal stability in both water and serum, imparted by carefully designed grafted polymer shells. The polymer shells were built with attached aldehyde functionality to enable the reversible attachment of doxorubicin (DOX) via imine bonds, providing a controlled release mechanism for DOX in acidic environments. The IONPs were shown to be readily taken up by cell lines (MCF-7 breast cancer cells and H1299 lung cancer cells), and intracellular release of DOX was proven using in vitro fluorescence lifetime imaging microscopy (FLIM) measurements. Using the fluorescence lifetime difference exhibited by native DOX (~1 ns) compared to conjugated DOX (~4.6 ns), the intracellular release of conjugated DOX was in situ monitored in H1299 and was estimated using phasor plot representation, showing a clear increase of native DOX with time. The results obtained from FLIM were corroborated using confocal microscopy, clearly showing DOX accumulation in the nuclei. The IONPs were also assessed as MRI negative contrast agents. We observed a significant change in the transverse relaxivity properties of the IONPs, going from 220 to 390 mM(-1) s(-1), in the presence or absence of conjugated DOX. This dependence of MRI signal on IONP-DOX/water interactions may be exploited in future theranostic applications. The in vitro studies were then extended to monitor cell uptake of the DOX loaded IONPs (IONP@P(HBA)-b-P(OEGA) + DOX) into two 3D multicellular tumor spheroids (MCS) grown from two independent cell lines (MCF-7 and H1299) using multiphoton excitation microscopy.
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Affiliation(s)
- Johan S Basuki
- Australian Centre for Nanomedicine, University of New South Wales , Sydney, New South Wales 2052, Australia
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335
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Bruckman MA, Yu X, Steinmetz NF. Engineering Gd-loaded nanoparticles to enhance MRI sensitivity via T(1) shortening. NANOTECHNOLOGY 2013; 24:462001. [PMID: 24158750 PMCID: PMC3895399 DOI: 10.1088/0957-4484/24/46/462001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Magnetic resonance imaging (MRI) is a noninvasive imaging technique capable of obtaining high-resolution anatomical images of the body. Major drawbacks of MRI are the low contrast agent sensitivity and inability to distinguish healthy tissue from diseased tissue, making early detection challenging. To address this technological hurdle, paramagnetic contrast agents have been developed to increase the longitudinal relaxivity, leading to an increased signal-to-noise ratio. This review focuses on methods and principles that enabled the design and engineering of nanoparticles to deliver contrast agents with enhanced ionic relaxivities. Different engineering strategies and nanoparticle platforms will be compared in terms of their manufacturability, biocompatibility properties, and their overall potential to make an impact in clinical MR imaging.
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Affiliation(s)
- Michael A. Bruckman
- Department of Biomedical Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Xin Yu
- Department of Biomedical Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Radiology, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Radiology, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
- Department of Materials Science and Engineering, Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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336
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Lv R, Gai S, Dai Y, Niu N, He F, Yang P. Highly uniform hollow GdF3 spheres: controllable synthesis, tuned luminescence, and drug-release properties. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10806-10818. [PMID: 24106741 DOI: 10.1021/am4041652] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper, uniform hollow mesoporous GdF3 micro/nanospheres were successfully prepared by a facile two-step synthesis route without using any surfactant, catalyst, and further calcination process. The precursor Gd(OH)CO3 spheres are prepared by a coprecipitation process. After that, uniform and size-tunable GdF3 hollow spheres were easily coprecipitated with NaBF4 at the sacrifice of the precursor with low temperature and short reaction time. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution TEM, N2 adsorption/desorption, and up-conversion (UC) photoluminescence spectra were used to characterize the as-obtained products. It is found that the initial pH value and NaBF4/Gd(3+) molar ratios play important roles in the structures, sizes, and phases of the hollow products. The growth mechanism of the hollow spheres has been systematically investigated based on the Kirkendall effect. Under 980 nm IR laser excitation, UC luminescence of the as-prepared Yb(3+)/Er(3+)-codoped GdF3 hollow spheres can be changed by a simple adjustment of the concentration of the Yb(3+) ion. Enhanced red emission is obtained by introducing Li(+) ions in GdF3:Yb(3+)/Er(3+). Furthermore, a doxorubicin release experiment and a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide cytotoxicity assay reveal that the product has potential application in drug delivery and targeted cancer therapy.
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Affiliation(s)
- Ruichan Lv
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University , Harbin 150001, People's Republic of China
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337
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Kong DL, Wei B, Zhou SY, Yang HS, Jiang Y. Volume-related efficiency of gadolinium polyoxometalates as MRI contrast agents. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-3061-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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338
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Abstract
Biomedical imaging techniques can provide a vast amount of anatomical information, enabling diagnosis and the monitoring of disease and treatment profile. MRI uniquely offers convenient, non-invasive, high resolution tomographic imaging. A considerable amount of effort has been invested, across several decades, in the design of non toxic paramagnetic contrast agents capable of enhancing positive MRI signal contrast. Recently, focus has shifted towards the development of agents capable of specifically reporting on their local biochemical environment, where a switch in image contrast is triggered by a specific stimulus/biochemical variable. Such an ability would not only strengthen diagnosis but also provide unique disease-specific biochemical insight. This feature article focuses on recent progress in the development of MRI contrast switching with molecular, macromolecular and nanoparticle-based agents.
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Affiliation(s)
- Gemma-Louise Davies
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
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339
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Vivero-Escoto JL, Rieter WJ, Lau H, Huxford-Phillips RC, Lin W. Biodegradable polysilsesquioxane nanoparticles as efficient contrast agents for magnetic resonance imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3523-31. [PMID: 23613450 PMCID: PMC3804422 DOI: 10.1002/smll.201300198] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 03/11/2013] [Indexed: 05/20/2023]
Abstract
Polysilsesquioxane (PSQ) nanoparticles are crosslinked homopolymers formed by condensation of functionalized trialkoxysilanes, and provide an interesting platform for developing biologically and biomedically relevant nanomaterials. In this work, the design and synthesis of biodegradable PSQ particles with extremely high payloads of paramagnetic Gd(III) centers is explored, for use as efficient contrast agents for magnetic resonance imaging (MRI). Two new bis(trialkoxysilyl) derivatives of Gd(III) diethylenetriamine pentaacetate (Gd-DTPA) containing disulfide linkages are synthesized and used to form biodegradable Gd-PSQ particles by base-catalyzed condensation reactions in reverse microemulsions. The Gd-PSQ particles, PSQ-1 and PSQ-2, carry 53.8 wt% and 49.3 wt% of Gd-DTPA derivatives, respectively. In addition, the surface carboxy groups on the PSQ-2 particles can be modified with polyethylene glycol (PEG) and the anisamide (AA) ligand to enhance biocompatibility and cell uptake, respectively. The Gd-PSQ particles are readily degradable to release the constituent Gd(III) chelates in the presence of endogenous reducing agents such as cysteine and glutathione. The MR relaxivities of the Gd-PSQ particles are determined using a 3T MR scanner, with r1 values ranging from 5.9 to 17.8 mMs(-1) on a per-Gd basis. Finally, the high sensitivity of the Gd-PSQ particles as T1 -weighted MR contrast agents is demonstrated with in vitro MR imaging of human lung and pancreatic cancer cells. The enhanced efficiency of the anisamide-functionalized PSQ-2 particles as a contrast agent is corroborated by both confocal laser scanning microscopy imaging and ICP-MS analysis of Gd content in vitro.
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340
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Debroye E, Laurent S, Vander Elst L, Muller RN, Parac-Vogt TN. Dysprosium Complexes and Their Micelles as Potential Bimodal Agents for Magnetic Resonance and Optical Imaging. Chemistry 2013; 19:16019-28. [DOI: 10.1002/chem.201302418] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Indexed: 12/30/2022]
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341
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Gambino G, De Pinto S, Tei L, Cassino C, Arena F, Gianolio E, Botta M. A new ditopic Gd(III) complex functionalized with an adamantyl moiety as a versatile building block for the preparation of supramolecular assemblies. J Biol Inorg Chem 2013; 19:133-43. [PMID: 24100595 DOI: 10.1007/s00775-013-1050-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 09/24/2013] [Indexed: 10/26/2022]
Abstract
A dimeric GdAAZTA-like complex (AAZTA is 6-amino-6-methylperhydro-1,4-diazepinetetraacetic acid) bearing an adamantyl group (Gd2L1) able to form strong supramolecular adducts with specific hosts such as β-cyclodextrin (β-CD), poly-β-CD, and human serum albumin (HSA) is reported. The relaxometric properties of Gd2L1 were investigated in aqueous solution by measuring the (1)H relaxivity as a function of pH, temperature, and magnetic field strength. The relaxivity of Gd2L1 (per Gd atom) at 40 MHz and 298 K is 17.6 mM(-1) s(-1), a value that remains almost constant at higher fields owing to the great compactness and rigidity of the bimetallic chelate, resulting in an ideal value for the rotational correlation time for high-field MRI applications (1.5-3.0 T). The noncovalent interaction of Gd2L1 with β-CD, poly-β-CD, and HSA and the relaxometric properties of the resulting host-guest adducts were investigated using (1)H relaxometric methods. Relaxivity enhancements of 29 and 108 % were found for Gd2L1-β-CD and Gd2L1-poly-β-CD, respectively. Binding of Gd2L1 to HSA (KA = 1.2 × 10(4) M(-1)) results in a remarkable relaxivity of 41.4 mM(-1) s(-1) for the bound form (+248 %). The relaxivity is only limited by the local rotation of the complex within the binding site, which decreases on passing from Gd2L1-β-CD to Gd2L1-HSA. Finally, the applicability of Gd2L1 as tumor-targeting agent through passive accumulation of the HSA-bound adduct was evaluated via acquisition of magnetic resonance images at 1 T of B16-tumor-bearing mice. These experiments indicate a considerable signal enhancement (+160 %) in tumor after 60 min from the injection and a very low hepatic accumulation.
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Affiliation(s)
- Giuseppe Gambino
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "Amedeo Avogadro", Viale T. Michel 11, 15121, Alessandria, Italy
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342
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Gale EM, Kenton N, Caravan P. [Gd(CyPic3A)(H2O)2]-: a stable, bis(aquated) and high-relaxivity Gd(III) complex. Chem Commun (Camb) 2013; 49:8060-2. [PMID: 23903523 PMCID: PMC3791611 DOI: 10.1039/c3cc44116d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We report the synthesis and MR relevant properties of CyPic3A, a heptadentate chelator that forms ternary Gd(III) complexes of hydration state q = 2. [Gd(CyPic3A)(H2O)2](-) affords an r1 value of 5.70 mM(-1) s(-1) at 1.41 T and 310 K and displays thermodynamic stability and kinetic inertness comparable to FDA approved MR imaging probes.
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Affiliation(s)
- Eric M Gale
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
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343
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El Habnouni S, Nottelet B, Darcos V, Porsio B, Lemaire L, Franconi F, Garric X, Coudane J. MRI-Visible Poly(ε-caprolactone) with Controlled Contrast Agent Ratios for Enhanced Visualization in Temporary Imaging Applications. Biomacromolecules 2013; 14:3626-34. [DOI: 10.1021/bm400978a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | | | | | - Laurent Lemaire
- Micro
et Nanomédecines Biomimétiques (MINT), UMR-S 1066, Université d’Angers, 4 rue Larrey, 49933 Angers Cedex9, France
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344
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Chai W, Wang S, Zhao H, Liu G, Fischer K, Li H, Wu L, Schmidt M. Hybrid Assemblies Based on a Gadolinium-Containing Polyoxometalate and a Cationic Polymer with Spermine Side Chains for Enhanced MRI Contrast Agents. Chemistry 2013; 19:13317-21. [DOI: 10.1002/chem.201302618] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Indexed: 11/09/2022]
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345
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Zhen M, Zheng J, Wang Y, Shu C, Gao F, Zou J, Pyykkö I, Wang C. Multifunctional nanoprobe for MRI/optical dual-modality imaging and radical scavenging. Chemistry 2013; 19:14675-81. [PMID: 24027072 DOI: 10.1002/chem.201301601] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Indexed: 01/04/2023]
Abstract
The development of novel nanomaterials for the diagnosis and/or treatment of human diseases has become an important issue. In this work, a multifunctional theranostic agent was designed by covalently binding hydroxyl- and amino-bearing C60 derivatives (C60 O∼10 (OH)∼16 (NH2 )∼6 (NO2 )∼6 ⋅24 H2 O) with gadolinium diethylenetriaminepentaacetic acid (Gd-DTPA) to yield C60 O∼10 (OH)∼16 (NH2 )∼6 (NO2 )∼6 ⋅24 H2 O/(Gd-DTPA)3 (DF1 Gd3 ). The obtained DF1 Gd3 shows more than fourfold contrast improvement over commercial Gd-DTPA along with multiwavelength fluorescent emission for dual-modality diagnosis. An inner-ear magnetic resonance imaging (MRI) study was designed as a model of biological barriers, including the blood/brain barrier (BBB) for DF1 Gd3 to investigate its in vivo behavior. This revealed that the fabricated contrast agent dramatically increases the local contrast but can not cross the middle ear/inner ear barrier and endolymph/perilymph barrier in the inner ear, and thus it is also BBB-prohibited in normal individuals. In vivo biodistribution studies suggested that 1) DF1 Gd3 could circulate in vessels for a relatively long time and is mainly eliminated through liver and kidney, 2) DF1 Gd3 may potentially function as a liver-specific MRI contrast agent. Interestingly, DF1 Gd3 also shows an excellent quenching effect on hydroxyl radicals, as revealed by the DMPO spin trap/ESR method. The combination of enhanced MRI/FL imaging and local treatment of lesions is unique to DF1 Gd3 and potentiates the medical paradigm of "detect and treat/prevent" in combating human diseases related to reactive oxygen.
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Affiliation(s)
- Mingming Zhen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P. R. China)
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346
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Andreozzi E, Wang P, Valenzuela A, Tu C, Gorin F, Dhenain M, Louie A. Size-Stable Solid Lipid Nanoparticles Loaded with Gd-DOTA for Magnetic Resonance Imaging. Bioconjug Chem 2013; 24:1455-67. [DOI: 10.1021/bc300605f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Erica Andreozzi
- Department of Biomedical Engineering, University of California Davis, Davis,
California 95616, United States
| | - Peter Wang
- Department of Biomedical Engineering, University of California Davis, Davis,
California 95616, United States
| | - Anthony Valenzuela
- Department of Neurology, School of Medicine, University of California Davis,
4860 Y Street, #3700, Sacramento, California 95817, United States
| | - Chuqiao Tu
- Department of Biomedical Engineering, University of California Davis, Davis,
California 95616, United States
| | - Fredric Gorin
- Department of Neurology, School of Medicine, University of California Davis,
4860 Y Street, #3700, Sacramento, California 95817, United States
| | - Marc Dhenain
- CNRS, URA CEA CNRS 2210, 18 route du Panorama, 92265 Fontenay aux Roses,
France
- CEA, DSV, I2BM, MIRCen, 18 Route du Panorama, 92265
Fontenay aux
Roses, France
| | - Angelique Louie
- Department of Biomedical Engineering, University of California Davis, Davis,
California 95616, United States
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347
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Hu Z, Ahrén M, Selegård L, Skoglund C, Söderlind F, Engström M, Zhang X, Uvdal K. Highly Water-Dispersible Surface-Modified Gd2O3Nanoparticles for Potential Dual-Modal Bioimaging. Chemistry 2013; 19:12658-67. [DOI: 10.1002/chem.201301687] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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348
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Zhou Z, Wu X, Kresak A, Griswold M, Lu ZR. Peptide targeted tripod macrocyclic Gd(III) chelates for cancer molecular MRI. Biomaterials 2013; 34:7683-93. [PMID: 23863450 DOI: 10.1016/j.biomaterials.2013.06.057] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 06/26/2013] [Indexed: 02/06/2023]
Abstract
Rational design and develop of targeted contrast agents binding to cancer-related proteins will achieve more accurate cancer diagnosis and prognosis by magnetic resonance (MR) imaging. CREKA is a tumor-homing pentapeptide (Cys-Arg-Glu-Lys-Ala) specifically homes to fibrin-fibronectin complexes abundantly expressed in tumor microenvironment. In this study, we developed and evaluated a CREKA peptide targeted multiplexed Gd-MR probe (CREKA-Tris-Gd(DOTA)3) for MR imaging of breast tumors. CREKA and azide bearing Gd(III) was attached to a maleimide-functional trialkyne scaffold via thiol-maleimide and azide-alkyne click chemistry, respectively. CREKA-Tris-Gd(DOTA)3 has a well-defined structure with a molecular weight of 2914 Da. The T1 relaxivity of CREKA-Tris-Gd(DOTA)3 is 8.06 mM(-1) s(-1) per Gd (24.18 mM(-1) s(-1) per molecule) at room temperature and 3 T. Fluorescence imaging showed high binding specificity of CREKA to a 4T1 breast tumor model in mice while it was not found for the scrambled CREKA (CERAK). The CREKA peptide-targeted contrast agent resulted in greater contrast enhancement than the corresponding CERAK agent and the commercialized contrast agent ProHance(®) in tumor at a dose of 0.1 mmol Gd/kg in female athymic mice bearing 4T1 breast carcinoma xenograft. This small molecular contrast agent was easily excreted from body after imaging indicated low toxicity. The targeted MRI contrast agent has a potential for specific cancer molecular imaging with MRI.
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Affiliation(s)
- Zhuxian Zhou
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
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349
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Rolla GA, Botta M, Tei L, Cabella C, Ghiani S, Brioschi C, Maiocchi A. Paramagnetic Solid Lipid Nanoparticles as a Novel Platform for the Development of Molecular MRI Probes. Chemistry 2013; 19:11189-93. [DOI: 10.1002/chem.201301837] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Indexed: 11/08/2022]
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350
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Cheng W, Ping Y, Zhang Y, Chuang KH, Liu Y. Magnetic resonance imaging (MRI) contrast agents for tumor diagnosis. JOURNAL OF HEALTHCARE ENGINEERING 2013; 4:23-45. [PMID: 23502248 DOI: 10.1260/2040-2295.4.1.23] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review focuses on MRI contrast agents for tumor diagnosis. Several types of low molecular weight Gd3+-based complexes and dextran-coated superparamagnetic iron oxide (SPIO) nanoparticles have been used for clinical tumor diagnosis as longitudinal relaxation time (T1) and transverse relaxation time (T2) MRI contrast agents, respectively. To further improve the sensitivity of MRI, new types of chelates for T1 MRI contrast agents and combination of low molecular weight T1 MRI contrast agents with different types of carriers have been investigated. Different types of materials for forming secure coating layers of SPIO and novel superparamagnetic particles with higher relaxivity values have been explored. Various types of ligands were applied to improve the capability to target tumor for both T1 and T2 contrast agents. Furthermore, MRI contrast agents for detection of tumor metabolism were also pursued.
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Affiliation(s)
- Weiren Cheng
- Institute of Materials Research and Engineering, Singapore Singapore Bioimaging Consortium, Singapore
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