201
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Muddineti OS, Ghosh B, Biswas S. Current trends in using polymer coated gold nanoparticles for cancer therapy. Int J Pharm 2015; 484:252-67. [DOI: 10.1016/j.ijpharm.2015.02.038] [Citation(s) in RCA: 179] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 02/11/2015] [Accepted: 02/14/2015] [Indexed: 02/06/2023]
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202
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Du B, Han S, Li H, Zhao F, Su X, Cao X, Zhang Z. Multi-functional liposomes showing radiofrequency-triggered release and magnetic resonance imaging for tumor multi-mechanism therapy. NANOSCALE 2015; 7:5411-5426. [PMID: 25731982 DOI: 10.1039/c4nr04257c] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Recently, nanoplatforms with multiple functions, such as tumor-targeting drug carriers, MRI, optical imaging, thermal therapy etc., have become popular in the field of cancer research. The present study reports a novel multi-functional liposome for cancer theranostics. A dual targeted drug delivery with radiofrequency-triggered drug release and imaging based on the magnetic field influence was used advantageously for tumor multi-mechanism therapy. In this system, the surface of fullerene (C60) was decorated with iron oxide nanoparticles, and PEGylation formed a hybrid nanosystem (C60-Fe3O4-PEG2000). Thermosensitive liposomes (dipalmitoylphosphatidylcholine, DPPC) with DSPE-PEG2000-folate wrapped up the hybrid nanosystem and docetaxel (DTX), which were designed to combine features of biological and physical (magnetic) drug targeting for fullerene radiofrequency-triggered drug release. The magnetic liposomes not only served as powerful tumor diagnostic magnetic resonance imaging (MRI) contrast agents, but also as powerful agents for photothermal ablation of tumors. Furthermore, a remarkable thermal therapy combined chemotherapy multi-functional liposome nanoplatform converted radiofrequency energy into thermal energy to release drugs from thermosensitive liposomes, which was also observed during both in vitro and in vivo treatment. The multi-functional liposomes also could selectively kill cancer cells in highly localized regions via their excellent active tumor targeting and magnetic targeted abilities.
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Affiliation(s)
- Bin Du
- School of Pharmaceutical Sciences, Zhengzhou University, Science Road 100, 450001, Zhengzhou, China.
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203
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García I, Sánchez-Iglesias A, Henriksen-Lacey M, Grzelczak M, Penadés S, Liz-Marzán LM. Glycans as Biofunctional Ligands for Gold Nanorods: Stability and Targeting in Protein-Rich Media. J Am Chem Soc 2015; 137:3686-92. [DOI: 10.1021/jacs.5b01001] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Isabel García
- CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 50018 Aragon, Spain
| | | | | | - Marek Grzelczak
- CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Soledad Penadés
- CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 50018 Aragon, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 50018 Aragon, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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204
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Haghniaz R, Umrani RD, Paknikar KM. Temperature-dependent and time-dependent effects of hyperthermia mediated by dextran-coated La0.7Sr0.3MnO3: in vitro studies. Int J Nanomedicine 2015; 10:1609-23. [PMID: 25759583 PMCID: PMC4346362 DOI: 10.2147/ijn.s78167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background The purpose of this study was to investigate the therapeutic efficacy of dextran-coated (Dex) La0.7Sr0.3MnO3 (LSMO) nanoparticles-mediated hyperthermia at different temperatures (43°C, 45°C, and 47°C) based on cell killing potential and induction of heat shock proteins in a murine melanoma cell (B16F1) line. Methods LSMO nanoparticles were synthesized by a citrate-gel method and coated with dextran. B16F1 cells were exposed to the Dex-LSMO nanoparticles and heated using a radiofrequency generator. After heating, the morphology and topology of the cells were investigated by optical microscopy and atomic force microscopy. At 0 hours and 24 hours post heating, cells were harvested and viability was analyzed by the Trypan blue dye exclusion method. Apoptosis and DNA fragmentation were assessed by terminal deoxynucleotidyl transferase-dUTP nick end labeling (TUNEL) assay and agarose gel electrophoresis, respectively. An enzyme-linked immunosorbent assay was used to quantify heat shock protein levels. Results Our data indicate that cell death and induction of heat shock proteins in melanoma cells increased in a time-dependent and temperature-dependent manner, particularly at temperatures higher than 43°C. The mode of cell death was found to be apoptotic, as evident by DNA fragmentation and TUNEL signal. A minimum temperature of 45°C was required to irreversibly alter cell morphology, significantly reduce cell viability, and result in 98% apoptosis. Repeated cycles of hyperthermia could induce higher levels of heat shock proteins (more favorable for antitumor activity) when compared with a single cycle. Conclusion Our findings indicate a potential use for Dex-LSMO-mediated hyperthermia in the treatment of melanoma and other types of cancer.
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Affiliation(s)
- Reihaneh Haghniaz
- Centre for Nanobioscience, Agharkar Research Institute, Pune, Maharashtra, India
| | - Rinku D Umrani
- Centre for Nanobioscience, Agharkar Research Institute, Pune, Maharashtra, India
| | - Kishore M Paknikar
- Centre for Nanobioscience, Agharkar Research Institute, Pune, Maharashtra, India
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205
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Jung HS, Han J, Lee JH, Lee JH, Choi JM, Kweon HS, Han JH, Kim JH, Byun KM, Jung JH, Kang C, Kim JS. Enhanced NIR Radiation-Triggered Hyperthermia by Mitochondrial Targeting. J Am Chem Soc 2015; 137:3017-23. [DOI: 10.1021/ja5122809] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hyo Sung Jung
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
| | - Jiyou Han
- Division
of Biotechnology, Laboratory of Stem Cells and Tissue Regeneration,
College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
| | - Jae-Hong Lee
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
| | - Ji Ha Lee
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Korea
| | - Jong-Min Choi
- Department
of Biomedical Engineering, Kyung Hee University, Yongin 446-701, Korea
| | - Hee-Seok Kweon
- Division
of Electron Microscopic Research, Korea Basic Science Institute (KBSI), Daejeon 305-806, Korea
| | - Ji Hye Han
- The
Graduate School of East-West Medical Science, Kyung Hee University, Yongin 446-701, Korea
| | - Jong-Hoon Kim
- Division
of Biotechnology, Laboratory of Stem Cells and Tissue Regeneration,
College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Korea
| | - Kyung Min Byun
- Department
of Biomedical Engineering, Kyung Hee University, Yongin 446-701, Korea
| | - Jong Hwa Jung
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Korea
| | - Chulhun Kang
- The
Graduate School of East-West Medical Science, Kyung Hee University, Yongin 446-701, Korea
| | - Jong Seung Kim
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
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206
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Primc D, Makovec D. Composite nanoplatelets combining soft-magnetic iron oxide with hard-magnetic barium hexaferrite. NANOSCALE 2015; 7:2688-2697. [PMID: 25583312 DOI: 10.1039/c4nr05854b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
By coupling two different magnetic materials inside a single composite nanoparticle, the shape of the magnetic hysteresis can be engineered to meet the requirements of specific applications. Sandwich-like composite nanoparticles composed of a hard-magnetic Ba-hexaferrite (BaFe12O19) platelet core in between two soft-magnetic spinel iron oxide maghemite (γ-Fe2O3) layers were synthesized using a new, simple and inexpensive method based on the co-precipitation of Fe(3+)/Fe(2+) ions in an aqueous suspension of hexaferrite core nanoparticles. The required close control of the supersaturation of the precipitating species was enabled by the controlled release of the Fe(3+) ions from the nitrate complex with urea ([Fe((H2N)2C=O)6](NO3)3) and by using Mg(OH)2 as a solid precipitating agent. The platelet Ba-hexaferrite nanoparticles of different sizes were used as the cores. The controlled coating resulted in an exclusively heterogeneous nucleation and the topotactic growth of the spinel layers on both basal surfaces of the larger hexaferrite nanoplatelets. The direct magnetic coupling between the core and the shell resulted in a strong increase of the energy product |BH|max. Ultrafine core nanoparticles reacted with the precipitating species and homogeneous product nanoparticles were formed, which differ in terms of the structure and composition compared to any other compound in the BaO-Fe2O3 system.
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Affiliation(s)
- D Primc
- Department for Materials Synthesis, Jožef Stefan Institute and Jožef Stefan International Postgraduate School, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
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207
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Liu J, Detrembleur C, Mornet S, Jérôme C, Duguet E. Design of hybrid nanovehicles for remotely triggered drug release: an overview. J Mater Chem B 2015; 3:6117-6147. [DOI: 10.1039/c5tb00664c] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review addresses the advantages of remote triggers, e.g. ultrasounds, near infrared light and alternating magnetic fields, the fabrication of the hybrid nanovehicles, the release mechanisms and the next challenges.
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Affiliation(s)
- Ji Liu
- Centre for Education and Research on Macromolecules (CERM)
- University of Liege
- Chemistry Department
- B-4000 Liège
- Belgium
| | - Christophe Detrembleur
- Centre for Education and Research on Macromolecules (CERM)
- University of Liege
- Chemistry Department
- B-4000 Liège
- Belgium
| | | | - Christine Jérôme
- Centre for Education and Research on Macromolecules (CERM)
- University of Liege
- Chemistry Department
- B-4000 Liège
- Belgium
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208
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Chen Y, Jiang L, Wang R, Lu M, Zhang Q, Zhou Y, Wang Z, Lu G, Liang P, Ran H, Chen H, Zheng Y. Injectable smart phase-transformation implants for highly efficient in vivo magnetic-hyperthermia regression of tumors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7468-73. [PMID: 25167961 DOI: 10.1002/adma.201402509] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/20/2014] [Indexed: 05/06/2023]
Abstract
A minimally invasive, highly efficient and versatile strategy is proposed for localized tumor regression by developing a smart injectable liquid-solid phase-transformation organic-inorganic hybrid composite material, i.e., magnetic-Fe-powder-dispersed PLGA (Fe/PLGA) implants for magnetic hyperthermia therapy of cancer.
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Affiliation(s)
- Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050, Shanghai, P. R. China
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209
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Tamarov KP, Osminkina LA, Zinovyev SV, Maximova KA, Kargina JV, Gongalsky MB, Ryabchikov Y, Al-Kattan A, Sviridov AP, Sentis M, Ivanov AV, Nikiforov VN, Kabashin AV, Timoshenko VY. Radio frequency radiation-induced hyperthermia using Si nanoparticle-based sensitizers for mild cancer therapy. Sci Rep 2014; 4:7034. [PMID: 25391603 PMCID: PMC5382688 DOI: 10.1038/srep07034] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 10/24/2014] [Indexed: 11/16/2022] Open
Abstract
Offering mild, non-invasive and deep cancer therapy modality, radio frequency (RF) radiation-induced hyperthermia lacks for efficient biodegradable RF sensitizers to selectively target cancer cells and thus avoid side effects. Here, we assess crystalline silicon (Si) based nanomaterials as sensitizers for the RF-induced therapy. Using nanoparticles produced by mechanical grinding of porous silicon and ultraclean laser-ablative synthesis, we report efficient RF-induced heating of aqueous suspensions of the nanoparticles to temperatures above 45-50 °C under relatively low nanoparticle concentrations (<1 mg/mL) and RF radiation intensities (1-5 W/cm(2)). For both types of nanoparticles the heating rate was linearly dependent on nanoparticle concentration, while laser-ablated nanoparticles demonstrated a remarkably higher heating rate than porous silicon-based ones for the whole range of the used concentrations from 0.01 to 0.4 mg/mL. The observed effect is explained by the Joule heating due to the generation of electrical currents at the nanoparticle/water interface. Profiting from the nanoparticle-based hyperthermia, we demonstrate an efficient treatment of Lewis lung carcinoma in vivo. Combined with the possibility of involvement of parallel imaging and treatment channels based on unique optical properties of Si-based nanomaterials, the proposed method promises a new landmark in the development of new modalities for mild cancer therapy.
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Affiliation(s)
| | - Liubov A. Osminkina
- Lomonosov Moscow State University, Department of Physics, 119991 Moscow, Russia
| | | | - Ksenia A. Maximova
- Aix Marseille University, CNRS, LP3 UMR 7341, Campus de Luminy - Case 917, 13288, Marseille Cedex 9, France
| | - Julia V. Kargina
- Lomonosov Moscow State University, Department of Physics, 119991 Moscow, Russia
| | - Maxim B. Gongalsky
- Lomonosov Moscow State University, Department of Physics, 119991 Moscow, Russia
| | - Yury Ryabchikov
- Aix Marseille University, CNRS, LP3 UMR 7341, Campus de Luminy - Case 917, 13288, Marseille Cedex 9, France
| | - Ahmed Al-Kattan
- Aix Marseille University, CNRS, LP3 UMR 7341, Campus de Luminy - Case 917, 13288, Marseille Cedex 9, France
| | - Andrey P. Sviridov
- Lomonosov Moscow State University, Department of Physics, 119991 Moscow, Russia
| | - Marc Sentis
- Aix Marseille University, CNRS, LP3 UMR 7341, Campus de Luminy - Case 917, 13288, Marseille Cedex 9, France
| | | | | | - Andrei V. Kabashin
- Aix Marseille University, CNRS, LP3 UMR 7341, Campus de Luminy - Case 917, 13288, Marseille Cedex 9, France
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210
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Seemann KM, Luysberg M, Révay Z, Kudejova P, Sanz B, Cassinelli N, Loidl A, Ilicic K, Multhoff G, Schmid TE. Magnetic heating properties and neutron activation of tungsten-oxide coated biocompatible FePt core-shell nanoparticles. J Control Release 2014; 197:131-7. [PMID: 25445697 DOI: 10.1016/j.jconrel.2014.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 11/03/2014] [Accepted: 11/04/2014] [Indexed: 10/24/2022]
Abstract
Magnetic nanoparticles are highly desirable for biomedical research and treatment of cancer especially when combined with hyperthermia. The efficacy of nanoparticle-based therapies could be improved by generating radioactive nanoparticles with a convenient decay time and which simultaneously have the capability to be used for locally confined heating. The core-shell morphology of such novel nanoparticles presented in this work involves a polysilico-tungstate molecule of the polyoxometalate family as a precursor coating material, which transforms into an amorphous tungsten oxide coating upon annealing of the FePt core-shell nanoparticles. The content of tungsten atoms in the nanoparticle shell is neutron activated using cold neutrons at the Heinz Maier-Leibnitz (FRMII) neutron facility and thereby transformed into the radioisotope W-187. The sizeable natural abundance of 28% for the W-186 precursor isotope, a radiopharmaceutically advantageous gamma-beta ratio of γβ≈30% and a range of approximately 1mm in biological tissue for the 1.3MeV β-radiation are promising features of the nanoparticles' potential for cancer therapy. Moreover, a high temperature annealing treatment enhances the magnetic moment of nanoparticles in such a way that a magnetic heating effect of several degrees Celsius in liquid suspension - a prerequisite for hyperthermia treatment of cancer - was observed. A rise in temperature of approximately 3°C in aqueous suspension is shown for a moderate nanoparticle concentration of 0.5mg/ml after 15min in an 831kHz high-frequency alternating magnetic field of 250Gauss field strength (25mT). The biocompatibility based on a low cytotoxicity in the non-neutron-activated state in combination with the hydrophilic nature of the tungsten oxide shell makes the coated magnetic FePt nanoparticles ideal candidates for advanced radiopharmaceutical applications.
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Affiliation(s)
- K M Seemann
- Physik Department E21, Technische Universität München, D-85747 Garching, Germany; Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, D-85747 Garching, Germany.
| | - M Luysberg
- Peter Grünberg Institute (PGI-5) and Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich, D-52425 Jülich, Germany
| | - Z Révay
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, D-85747 Garching, Germany
| | - P Kudejova
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, D-85747 Garching, Germany
| | - B Sanz
- nanoScale Biomagnetics SL, 50012 Zaragoza, Spain
| | - N Cassinelli
- nanoScale Biomagnetics SL, 50012 Zaragoza, Spain
| | - A Loidl
- Experimentalphysik V, Center for Electronic Correlations and Magnetism, Universität Augsburg, D-86159 Augsburg, Germany
| | - K Ilicic
- Klinikum rechts d. Isar, Department of Radiooncology and HMGU München, CCG - Innate Immunity in Tumor Biology", Technische Universität München, D-81675 München, Germany
| | - G Multhoff
- Klinikum rechts d. Isar, Department of Radiooncology and HMGU München, CCG - Innate Immunity in Tumor Biology", Technische Universität München, D-81675 München, Germany
| | - T E Schmid
- Klinikum rechts d. Isar, Department of Radiooncology and HMGU München, CCG - Innate Immunity in Tumor Biology", Technische Universität München, D-81675 München, Germany
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211
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Caputo F, De Nicola M, Ghibelli L. Pharmacological potential of bioactive engineered nanomaterials. Biochem Pharmacol 2014; 92:112-30. [DOI: 10.1016/j.bcp.2014.08.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 08/14/2014] [Accepted: 08/15/2014] [Indexed: 01/17/2023]
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212
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Hervault A, Thanh NTK. Magnetic nanoparticle-based therapeutic agents for thermo-chemotherapy treatment of cancer. NANOSCALE 2014; 6:11553-73. [PMID: 25212238 DOI: 10.1039/c4nr03482a] [Citation(s) in RCA: 303] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Magnetic nanoparticles have been widely investigated for their great potential as mediators of heat for localised hyperthermia therapy. Nanocarriers have also attracted increasing attention due to the possibility of delivering drugs at specific locations, therefore limiting systematic effects. The enhancement of the anti-cancer effect of chemotherapy with application of concurrent hyperthermia was noticed more than thirty years ago. However, combining magnetic nanoparticles with molecules of drugs in the same nanoformulation has only recently emerged as a promising tool for the application of hyperthermia with combined chemotherapy in the treatment of cancer. The main feature of this review is to present the recent advances in the development of multifunctional therapeutic nanosystems incorporating both magnetic nanoparticles and drugs, and their superior efficacy in treating cancer compared to either hyperthermia or chemotherapy as standalone therapies. The principle of magnetic fluid hyperthermia is also presented.
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Affiliation(s)
- Aziliz Hervault
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories, 21 Albermarle Street, London W1S 4BS, UK.
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213
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Jasso-Terán RA, Cortés-Hernández DA, Múzquiz-Ramos EM, Sánchez-Fuentes HJ. Synthesis and characterization of zinc and calcium nanoferrites. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2221-2228. [PMID: 24570349 DOI: 10.1007/s10856-014-5180-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Accepted: 02/14/2014] [Indexed: 06/03/2023]
Abstract
In this work, Zn(1-x)CaxFe(2)O(4) nanoparticles (x = 0, 0.5 and 1) have been synthesized by sol-gel method followed by heat treatment at a temperature within the range of 300-700 °C. The samples with appropriate saturation magnetization (Ms), low coercivity and remanence were Zn(0)Ca(1)Fe(2)O(4) treated at 300 °C (Ms ~ 25 emu/g), Zn(0)Ca(1)Fe(2)O(4) treated at 400 °C (Ms ~ 40 emu/g) and Zn(0.50)Ca(0.50)Fe(2)O(4) treated at 400 °C (Ms ~ 31 emu/g). These samples were analyzed by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction and transmission electron microscopy. The heating ability of selected nanoparticles was evaluated under a magnetic field using a solid state induction heating equipment. The obtained nanoferrites showed a particle size within the range of 13-14 nm. The Zn(0)Ca(1)Fe(2)O(4) treated at 400 °C was able to heat the nanoferrite particles/water suspension (10 mg/2 ml) at a temperature of 44 °C under the selected magnetic field (10.2 kA/m and frequency 362 kHz). Additionally, in vitro bioactivity assessment was performed by immersing samples in a simulated body fluid for different periods of time at physiological conditions of pH and temperature. The samples showed an appropriate bioactivity. These nanoferrites are highly potential materials for hyperthermia treatment.
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Affiliation(s)
- R A Jasso-Terán
- CINVESTAV IPN-Unidad Saltillo, Industria Metalúrgica 1062 Parque Industrial Saltillo Ramos Arizpe, C.P. 25900, Ramos Arizpe, Coahuila, Mexico,
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214
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Shah BP, Pasquale N, De G, Tan T, Ma J, Lee KB. Core-shell nanoparticle-based peptide therapeutics and combined hyperthermia for enhanced cancer cell apoptosis. ACS NANO 2014; 8:9379-87. [PMID: 25133971 PMCID: PMC4174096 DOI: 10.1021/nn503431x] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 08/18/2014] [Indexed: 05/25/2023]
Abstract
Mitochondria-targeting peptides have garnered immense interest as potential chemotherapeutics in recent years. However, there is a clear need to develop strategies to overcome the critical limitations of peptides, such as poor solubility and the lack of target specificity, which impede their clinical applications. To this end, we report magnetic core-shell nanoparticle (MCNP)-mediated delivery of a mitochondria-targeting pro-apoptotic amphipathic tail-anchoring peptide (ATAP) to malignant brain and metastatic breast cancer cells. Conjugation of ATAP to the MCNPs significantly enhanced the chemotherapeutic efficacy of ATAP, while the presence of targeting ligands afforded selective delivery to cancer cells. Induction of MCNP-mediated hyperthermia further potentiated the efficacy of ATAP. In summary, a combination of MCNP-mediated ATAP delivery and subsequent hyperthermia resulted in an enhanced effect on mitochondrial dysfunction, thus resulting in increased cancer cell apoptosis.
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Affiliation(s)
- Birju P. Shah
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Nicholas Pasquale
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Gejing De
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio 43210, United States
| | - Tao Tan
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio 43210, United States
| | - Jianjie Ma
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio 43210, United States
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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215
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Collins CB, McCoy RS, Ackerson BJ, Collins GJ, Ackerson CJ. Radiofrequency heating pathways for gold nanoparticles. NANOSCALE 2014; 6:8459-72. [PMID: 24962620 PMCID: PMC4624276 DOI: 10.1039/c4nr00464g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
This feature article reviews the thermal dissipation of nanoscopic gold under radiofrequency (RF) irradiation. It also presents previously unpublished data addressing obscure aspects of this phenomenon. While applications in biology motivated initial investigation of RF heating of gold nanoparticles, recent controversy concerning whether thermal effects can be attributed to nanoscopic gold highlight the need to understand the involved mechanism or mechanisms of heating. Both the nature of the particle and the nature of the RF field influence heating. Aspects of nanoparticle chemistry which may affect thermal dissipation include the hydrodynamic diameter of the particle, the oxidation state and related magnetism of the core, and the chemical nature of the ligand shell. Aspects of RF which may affect thermal dissipation include power, frequency and antenna designs that emphasize relative strength of magnetic or electric fields. These nanoparticle and RF properties are analysed in the context of three heating mechanisms proposed to explain gold nanoparticle heating in an RF field. This article also makes a critical analysis of the existing literature in the context of the nanoparticle preparations, RF structure, and suggested mechanisms in previously reported experiments.
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Affiliation(s)
- C B Collins
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA.
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216
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Crassous JJ, Mihut AM, Dietsch H, Pravaz O, Ackermann-Hirschi L, Hirt AM, Schurtenberger P. Advanced multiresponsive comploids: from design to possible applications. NANOSCALE 2014; 6:8726-8735. [PMID: 24949912 DOI: 10.1039/c4nr01243g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We extend the commonly used synthesis strategies for responsive microgels to the design of novel multiresponsive and multifunctional nanoparticles that combine inorganic magnetic, metallic/catalytic and thermoresponsive organic moieties. Magnetic responsiveness is implemented through the integration of silica-coated maghemite nanoparticles into fluorescently labeled crosslinked poly(N-isopropylmethacrylamide) microgels. These particles are then employed as templates for the in situ reduction of catalytically active gold nanoparticles. In order to tune the reactivity of the catalyst through a thermally controlled barrier, an additional layer of crosslinked poly(N-isopropylacrylamide) is added in the final step. We subsequently demonstrate that these particles can be employed as smart catalysts. We show that the thermoresponsive nature of the outer particle shell not only provides control over the catalytic activity, but when combined with a magnetic core allows for very efficient removal of the catalytic system through temperature-controlled reversible coagulation and subsequent magnetophoresis in an applied magnetic field gradient. We finally discuss the use of this design principle for the synthesis of complex hybrid particles for various applications that would all profit from their multiresponsive and multifunctional nature.
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Affiliation(s)
- Jérôme J Crassous
- Physical Chemistry, Department of Chemistry, Lund University, 22100 Lund, Sweden.
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217
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Yang H, Du L, Tian X, Fan Z, Sun C, Liu Y, Keelan JA, Nie G. Effects of nanoparticle size and gestational age on maternal biodistribution and toxicity of gold nanoparticles in pregnant mice. Toxicol Lett 2014; 230:10-8. [PMID: 25102025 DOI: 10.1016/j.toxlet.2014.07.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/24/2014] [Accepted: 07/30/2014] [Indexed: 12/29/2022]
Abstract
Gold nanoparticles (GNPs) have considerable applications in biomedicine, such as in bio-sensing, bio-imaging, drug delivery and photothermal therapeutics. However, currently there are limited information regarding the impact of pregnancy on their biodistribution, elimination and toxicity. In this study, we investigated the biodistribution and potential toxic effects of different-sized GNPs (1.5, 4.5, 13, 30 and 70 nm in diameter) in non-pregnant and pregnant mice at different gestational ages (E5.5, 7.5, 9.5, 11.5 and 13.5). 5h after intravenous injection, GNPs exhibited size-dependent biodistribution profiles; however, regardless of size, no significant biodistribution changes were observed between non-pregnant and pregnant mice. Kinetic studies showed that 4.5 nm GNPs were primarily excreted through urine within 5h, whereas 30 nm GNPs had a more prolonged blood circulation time. No apparent toxic effects (e.g., increased mortality, altered behavior, reduced animal weight, abnormal organ morphology or reduced pregnancy duration) were observed with different-sized GNPs in pregnant mice. However, treatment with 30 nm GNPs induced mild emphysema-like changes in lungs of pregnant mice. These results indicated that the maternal biodistribution patterns of GNPs in pregnant mice depended on particle size, but not gestational age; organ-specific adverse effects may arise with treatment with some GNPs according to their size.
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Affiliation(s)
- Hui Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China; Immunology Department, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Libo Du
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xin Tian
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China; School for Radiological & Interdisciplinary Sciences, Soochow University, Suzhou 215123, China
| | - Zhenlin Fan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Cuiji Sun
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yang Liu
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jeffrey A Keelan
- School of Women's and Infant's Health, University of Western Australia, Perth, Western Australia, Australia.
| | - Guangjun Nie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China.
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218
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Topete A, Alatorre-Meda M, Villar-Alvarez EM, Carregal-Romero S, Barbosa S, Parak WJ, Taboada P, Mosquera V. Polymeric-gold nanohybrids for combined imaging and cancer therapy. Adv Healthc Mater 2014; 3:1309-25. [PMID: 24764284 DOI: 10.1002/adhm.201400023] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/26/2014] [Indexed: 11/08/2022]
Abstract
Here, the use of folic acid (FA)-functionalized, doxorubicin (DOXO)/superparamagnetic iron oxide nanoparticles (SPION)-loaded poly(lactic-co-glycolic acid) (PLGA)-Au porous shell nanoparticles (NPs) as potential nanoplatforms is reported for targeted multimodal chemo- and photothermal therapy combined with optical and magnetic resonance imaging in cancer. These polymeric-gold nanohybrids (PGNH) are produced by a seeded-growth method using chitosan as an electrostatic "glue" to attach Au seeds to DOXO/SPION-PLGA NPs. In order to determine their potential as theranostic nanoplatforms, their physicochemical properties, cellular uptake, and photothermal and chemotherapeutic efficiencies are tested in vitro using a human cervical cancer (HeLa) cell line. The present NPs show a near-infrared (NIR)-light-triggered release of cargo molecules under illumination and a great capacity to induce localized cell death in a well-focused region. The functionalization of the PGNH NPs with the targeting ligand FA improves their internalization efficiency and specificity. Furthermore, the possibility to guide the PGNH NPs to cancer cells by an external magnetic field is also proven in vitro, which additionally increases the cellular uptake and therapeutic efficiency.
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Affiliation(s)
- Antonio Topete
- Grupo de Física de Coloides y Polímeros; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Manuel Alatorre-Meda
- Grupo de Física de Coloides y Polímeros; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Eva M. Villar-Alvarez
- Grupo de Física de Coloides y Polímeros; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | | | - Silvia Barbosa
- Grupo de Física de Coloides y Polímeros; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Wolfgang J. Parak
- Fachbereich Physik; Philipps Universität Marburg; Renthof 7 35037 Marburg Germany
| | - Pablo Taboada
- Grupo de Física de Coloides y Polímeros; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Víctor Mosquera
- Grupo de Física de Coloides y Polímeros; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
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219
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Raoof M, Corr SJ, Zhu C, Cisneros BT, Kaluarachchi WD, Phounsavath S, Wilson LJ, Curley SA. Gold nanoparticles and radiofrequency in experimental models for hepatocellular carcinoma. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2014; 10:1121-30. [PMID: 24650884 PMCID: PMC4349335 DOI: 10.1016/j.nano.2014.03.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 02/23/2014] [Accepted: 03/05/2014] [Indexed: 12/26/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most lethal and chemo-refractory cancers, clearly, alternative treatment strategies are needed. We utilized 10nm gold nanoparticles as a scaffold to synthesize nanoconjugates bearing a targeting antibody (cetuximab, C225) and gemcitabine. Loading efficiency of gemcitabine on the gold nanoconjugates was 30%. Targeted gold nanoconjugates in combination with RF were selectively cytotoxic to EGFR expressing Hep3B and SNU449 cells when compared to isotype particles with/without RF (P<0.05). In animal experiments, targeted gold nanoconjugates halted the growth of subcutaneous Hep3B xenografts in combination with RF exposure (P<0.05). These xenografts also demonstrated increased apoptosis, necrosis and decreased proliferation compared to controls. Normal tissues were unharmed. We have demonstrated that non-invasive RF-induced hyperthermia when combined with targeted delivery of gemcitabine is more effective and safe at dosages ~275-fold lower than the current clinically-delivered systemic dose of gemcitabine. FROM THE CLINICAL EDITOR In a model of hepatocellular carcinoma, the authors demonstrate that non-invasive RF-induced hyperthermia applied with cetuximab targeted delivery of Au NP-gemcitabine conjugate is more effective and safe at dosages ~ 275-fold lower than the current clinically-used systemic dose of gemcitabine.
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MESH Headings
- Animals
- Antibodies, Monoclonal, Humanized/chemistry
- Antibodies, Monoclonal, Humanized/therapeutic use
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/pathology
- Carcinoma, Hepatocellular/therapy
- Cell Line, Tumor
- Cetuximab
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/chemistry
- Deoxycytidine/therapeutic use
- Drug Delivery Systems
- Gold/chemistry
- Gold/therapeutic use
- Humans
- Hyperthermia, Induced
- Liver/drug effects
- Liver/pathology
- Liver Neoplasms/drug therapy
- Liver Neoplasms/pathology
- Liver Neoplasms/therapy
- Metal Nanoparticles/chemistry
- Metal Nanoparticles/therapeutic use
- Mice, Inbred BALB C
- Nanoconjugates/chemistry
- Nanoconjugates/therapeutic use
- Gemcitabine
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Affiliation(s)
- Mustafa Raoof
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Stuart J Corr
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA; Department of Chemistry and Richard E. Smalley Institute for Nanoscale Science & Technology, Rice University, Houston, TX, USA
| | - Cihui Zhu
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Brandon T Cisneros
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA; Department of Chemistry and Richard E. Smalley Institute for Nanoscale Science & Technology, Rice University, Houston, TX, USA
| | | | - Sophia Phounsavath
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA; Department of Chemistry and Richard E. Smalley Institute for Nanoscale Science & Technology, Rice University, Houston, TX, USA
| | - Lon J Wilson
- Department of Chemistry and Richard E. Smalley Institute for Nanoscale Science & Technology, Rice University, Houston, TX, USA
| | - Steven A Curley
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA; Department of Mechanical Engineering and Materials Science Rice University, Houston, TX, USA.
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220
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Cooper DL, Conder CM, Harirforoosh S. Nanoparticles in drug delivery: mechanism of action, formulation and clinical application towards reduction in drug-associated nephrotoxicity. Expert Opin Drug Deliv 2014; 11:1661-80. [PMID: 25054316 DOI: 10.1517/17425247.2014.938046] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Over the past few decades, nanoparticles (NPs) have gained immeasurable interest in the field of drug delivery. Various NP formulations have been disseminated in drug development in an attempt to increase efficacy, safety and tolerability of incorporated drugs. In this context, NP formulations that increase solubility, control release, and/or affect the in vivo disposition of drugs, were developed to improve the pharmacokinetic and pharmacodynamic properties of encapsulated drugs. AREAS COVERED In this article, important properties related to NP function such as particle size, surface charge and shape are disseminated. Also, the current understanding of how NP characteristics affect particle uptake and targeted delivery is elucidated. Selected NP systems currently used in delivery of drugs in biological systems and their production methods are discussed as well. Emphasis is placed on current NP formulations that are shown to reduce drug-induced adverse renal complications. EXPERT OPINION Formulation designs utilizing NP-encapsulated drugs offer alternative pharmacotherapy options with improved safety profiles for current and emerging drugs. NPs have been shown to increase the therapeutic index of several entrapped drugs mostly by decreasing drug localization and side effects on organs. Recent studies on NP-encapsulated chemotherapeutic and antibiotic medications show enhanced therapeutic outcomes by altering drug degradation, increasing systemic circulation and/or enhancing cell specific targeting. They may also reduce the distribution of encapsulated drugs into the kidneys and attenuate drug-associated adverse renal complications. The usefulness of NP formulation in reducing the nephrotoxicity of nonsteroidal anti-inflammatory drugs is an under explored territory that deserves more attention.
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Affiliation(s)
- Dustin L Cooper
- East Tennessee State University, Gatton College of Pharmacy, Department of Pharmaceutical Sciences , Johnson City, TN 37614 , USA
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221
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Sadeghi HR, Bahreyni-Toosi MH, Meybodi NT, Esmaily H, Soudmand S, Eshghi H, Soudmand S, Sazgarnia A. Gold-gold sulfide nanoshell as a novel intensifier for anti-tumor effects of radiofrequency fields. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2014; 17:516-21. [PMID: 25429343 PMCID: PMC4242922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 04/19/2014] [Indexed: 11/11/2022]
Abstract
OBJECTIVES Several studies have been carried out to investigate the effect of various nanoparticles exposed to radiofrequency (RF) waves on cancerous tissues. In this study, a colon carcinoma tumor model was irradiated by RF in the presence of gold-gold sulfide (GGS) nanoshells. MATERIALS AND METHODS Synthesis and characterization of GGS nanoshells were initially performed. CT26 cells were subcutaneously injected into the flank of BALB/c mice to create the colon carcinoma tumor models. Then the tumors were subjected to different treatments. Treatment factors included intratumoral injection of GGS and RF radiation. Different groups were considered as control with no treatment, receiving GGS, RF irradiated and simultaneous administration of GGS and RF. Efficacy of the treatments was evaluated by daily monitoring of tumor volume and recording the relative changes in it, the time needed for a 5-fold increase in the volume of tumor (T5) and utilizing pathologic studies to determine the lost volume of the tumors. RESULTS In comparison with control group, tumor growth was not markedly inhibited in the groups receiving only GGS or RF, while in the group receiving GGS and RF, tumor growth was effectively inhibited compared with the other groups. In addition, the lost volume of the tumor and T5 was markedly higher in groups receiving GGS and RF compared with other groups. CONCLUSION This study showed that RF radiation can markedly reduce the tumor growth in presence of GGS. Hence, it can be predicted that GGS nanoshells convert sub-lethal effects of noninvasive RF fields into lethal damages.
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Affiliation(s)
- Hamid Reza Sadeghi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Naser Tayebi Meybodi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Habibollah Esmaily
- Department of Pathology, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samaneh Soudmand
- Department of Biostatistics, Faculty of Health Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Eshghi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samaneh Soudmand
- Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ameneh Sazgarnia
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
,Corresponding author: Ameneh Sazgarnia. Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. Tel: +98-511-8002323; Fax: +98-511-8002320;
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222
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Seemann K, Kuhn B. Multi-photon excited luminescence of magnetic FePt core-shell nanoparticles. BIOMEDICAL OPTICS EXPRESS 2014; 5:2446-57. [PMID: 25071977 PMCID: PMC4102377 DOI: 10.1364/boe.5.002446] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/20/2014] [Accepted: 06/23/2014] [Indexed: 05/24/2023]
Abstract
We present magnetic FePt nanoparticles with a hydrophilic, inert, and biocompatible silico-tungsten oxide shell. The particles can be functionalized, optically detected, and optically manipulated. To show the functionalization the fluorescent dye NOPS was bound to the FePt core-shell nanoparticles with propyl-triethoxy-silane linkers and fluorescence of the labeled particles were observed in ethanol (EtOH). In aqueous dispersion the NOPS fluorescence is quenched making them invisible using 1-photon excitation. However, we observe bright luminescence of labeled and even unlabeled magnetic core-shell nanoparticles with multi-photon excitation. Luminescence can be detected in the near ultraviolet and the full visible spectral range by near infrared multi-photon excitation. For optical manipulation, we were able to drag clusters of particles, and maybe also single particles, by a focused laser beam that acts as optical tweezers by inducing an electric dipole in the insulated metal nanoparticles. In a first application, we show that the luminescence of the core-shell nanoparticles is bright enough for in vivo multi-photon imaging in the mouse neocortex down to cortical layer 5.
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Affiliation(s)
- K.M. Seemann
- Physik Department E21, Technische Universität München, D-85748 Garching, Germany
- Forschungsneutronenquelle Heinz Maier-Leibnitz, Technische Universität München, D-85747 Garching, Germany
- These authors contributed equally
| | - B. Kuhn
- Optical Neuroimaging Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa 904-0495, Japan
- These authors contributed equally
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223
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Shi J, Wang L, Gao J, Liu Y, Zhang J, Ma R, Liu R, Zhang Z. A fullerene-based multi-functional nanoplatform for cancer theranostic applications. Biomaterials 2014; 35:5771-84. [DOI: 10.1016/j.biomaterials.2014.03.071] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Accepted: 03/26/2014] [Indexed: 01/16/2023]
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224
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Adsorption and desorption of tyrosine kinase inhibitor erlotinib on gold nanoparticles. J Colloid Interface Sci 2014; 425:96-101. [DOI: 10.1016/j.jcis.2014.03.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 03/08/2014] [Accepted: 03/12/2014] [Indexed: 11/18/2022]
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225
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Redolfi Riva E, Desii A, Sinibaldi E, Ciofani G, Piazza V, Mazzolai B, Mattoli V. Gold nanoshell/polysaccharide nanofilm for controlled laser-assisted tissue thermal ablation. ACS NANO 2014; 8:5552-5563. [PMID: 24797875 DOI: 10.1021/nn406348v] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on the fabrication and characterization of a freestanding ultrathin, mucoadhesive gold nanoshell/polysaccharide multilayer nanocomposite (thermonanofilm, TNF), that can be used for controlled photothermal ablation of tissues through irradiation with near-infrared radiation (NIR) laser. The aim of this work is to provide a new strategy to precisely control particle concentration during photothermalization of cancerous lesions, since unpredictable and aspecific biodistributions still remains the central issue of inorganic nanoparticle-assisted photothermal ablation. Gold nanoshell encapsulation in polysaccharide matrix is achieved by drop casting deposition method combined with spin-assisted layer-by-layer (LbL) assembly. Submicrometric thickness of films ensures tissue adhesion. Basic laser-induced heating functionality has been demonstrated by in vitro TNF-mediated thermal ablation of human neuroblastoma cancer cells, evidenced by irreversible damage to cell membranes and nuclei. Ex vivo localized vaporization and carbonization of animal muscular tissue is also demonstrated by applying TNF onto tissue surface. Thermal distribution in the tissue reaches a steady state in a few seconds, with significant increases in temperature (ΔT > 50) occurring across an 1 mm span, ensuring control of local photothermalization and providing more safety and predictability with respect to traditional laser surgery. A steady-state model of tissue thermalization mediated by TNFs is also introduced, predicting the temperature distribution being known the absorbance of TNFs, the laser power, and the tissue thermal conductivity, thus providing useful guidelines in the development of TNFs. Thermonanofilms can find applications for local photothermal treatment of cancerous lesions and wherever high precision and control of heat treatment is required.
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Affiliation(s)
- Eugenio Redolfi Riva
- Center for Micro-BioRobotics, Istituto Italiano di Tecnologia , Pontedera, 56025, Italy
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226
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Bannwarth MB, Ebert S, Lauck M, Ziener U, Tomcin S, Jakob G, Münnemann K, Mailänder V, Musyanovych A, Landfester K. Tailor-made nanocontainers for combined magnetic-field-induced release and MRI. Macromol Biosci 2014; 14:1205-14. [PMID: 24811570 DOI: 10.1002/mabi.201400122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/09/2014] [Indexed: 11/06/2022]
Abstract
The synthesis of a novel nanocapsule-based carrier system is described, possessing a triggered release in remote-controlled fashion upon application of an external magnetic field in combination with the possibility to use the capsules as contrast agents for magnetic resonance imaging (MRI). Therefore, polymeric nanocontainers containing a high amount of superparamagnetic MnFe2 O4 nanoparticles and a thermo-degradable shell are fabricated via a miniemulsion route. The process allows the facile encapsulation of hydrophilic compounds, as demonstrated for a model dye. Release of the encapsulated dye is achieved upon application of an external alternating magnetic field. While the magnetic nanoparticles here act as heat generators to stimulate the decomposition of the shell and subsequently a release of the payload, they additionally enable the use of the nanocapsules as imaging agents for MRI. Due to the encapsulated magnetic nanoparticles, the nanocapsules possess high r2 relaxivity values of 96-120 Hz mmol(-1) , which makes them suitable for MRI. In toxicity experiments, the nanocapsules show no cell toxicity up to fairly high concentrations (600 µg mL(-1) ). Due to their dual-functionality, the nanocapsules possess high potential as nanocarriers with combined magnetic-field-induced release capability and as contrast agents for MRI.
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Affiliation(s)
- Markus B Bannwarth
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany; Graduate School Materials Science in Mainz, Staudinger Weg 9, 55128, Mainz, Germany
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227
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Kaddi CD, Phan JH, Wang MD. Computational nanomedicine: modeling of nanoparticle-mediated hyperthermal cancer therapy. Nanomedicine (Lond) 2014; 8:1323-33. [PMID: 23914967 DOI: 10.2217/nnm.13.117] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Nanoparticle-mediated hyperthermia for cancer therapy is a growing area of cancer nanomedicine because of the potential for localized and targeted destruction of cancer cells. Localized hyperthermal effects are dependent on many factors, including nanoparticle size and shape, excitation wavelength and power, and tissue properties. Computational modeling is an important tool for investigating and optimizing these parameters. In this review, we focus on computational modeling of magnetic and gold nanoparticle-mediated hyperthermia, followed by a discussion of new opportunities and challenges.
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Affiliation(s)
- Chanchala D Kaddi
- Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Cheng D, Li X, Zhang G, Shi H. Morphological effect of oscillating magnetic nanoparticles in killing tumor cells. NANOSCALE RESEARCH LETTERS 2014; 9:195. [PMID: 24872797 PMCID: PMC4019356 DOI: 10.1186/1556-276x-9-195] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 04/17/2014] [Indexed: 05/19/2023]
Abstract
Forced oscillation of spherical and rod-shaped iron oxide magnetic nanoparticles (MNPs) via low-power and low-frequency alternating magnetic field (AMF) was firstly used to kill cancer cells in vitro. After being loaded by human cervical cancer cells line (HeLa) and then exposed to a 35-kHz AMF, MNPs mechanically damaged cell membranes and cytoplasm, decreasing the cell viability. It was found that the concentration and morphology of the MNPs significantly influenced the cell-killing efficiency of oscillating MNPs. In this preliminary study, when HeLa cells were pre-incubated with 100 μg/mL rod-shaped MNPs (rMNP, length of 200 ± 50 nm and diameter of 50 to 120 nm) for 20 h, MTT assay proved that the cell viability decreased by 30.9% after being exposed to AMF for 2 h, while the cell viability decreased by 11.7% if spherical MNPs (sMNP, diameter of 200 ± 50 nm) were used for investigation. Furthermore, the morphological effect of MNPs on cell viability was confirmed by trypan blue assay: 39.5% rMNP-loaded cells and 15.1% sMNP-loaded cells were stained after being exposed to AMF for 2 h. It was also interesting to find that killing tumor cells at either higher (500 μg/mL) or lower (20 μg/mL) concentration of MNPs was less efficient than that achieved at 100 μg/mL concentration. In conclusion, the relatively asymmetric morphological rod-shaped MNPs can kill cancer cells more effectively than spherical MNPs when being exposed to AMF by virtue of their mechanical oscillations.
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Affiliation(s)
- Dengfeng Cheng
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China
- Shanghai Institute of Medical Imaging, Shanghai 200032, People's Republic of China
| | - Xiao Li
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China
- Shanghai Institute of Medical Imaging, Shanghai 200032, People's Republic of China
| | - Guoxin Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China
| | - Hongcheng Shi
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, People's Republic of China
- Shanghai Institute of Medical Imaging, Shanghai 200032, People's Republic of China
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231
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Chen H, Burnett J, Zhang F, Zhang J, Paholak H, Sun D. Highly crystallized iron oxide nanoparticles as effective and biodegradable mediators for photothermal cancer therapy. J Mater Chem B 2013; 2:757-765. [PMID: 32261307 DOI: 10.1039/c3tb21338b] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report that highly crystallized iron oxide nanoparticles (HCIONPs) made by thermal decomposition and further coating with a polysiloxane-containing copolymer can be used as effective mediators for photothermal therapy. Irradiation of a HCIONP solution containing 0.5 mg mL-1 Fe, for instance, with an 885 nm diode laser at a power of 2.5 W cm-2, induces a temperature increase of 33 °C from room temperature, while water produced only a ∼3 °C increase as the control. In vivo studies are further evaluated for effective photothermal therapy using the as-prepared HCIONPs. Benefiting from the great antibiofouling property of the polymer coating and minimized hydrodynamic size (whole particle size: 24 nm), the nanoparticles intravenously administered to SUM-159 tumor-bearing mice can effectively accumulate within the tumor tissue (5.3% of injection dose) through the enhanced permeability and retention effect. After applying the same laser conditions to irradiate the tumors, complete tumor regression is observed within three weeks without disease relapse over the course of three months. Conversely, control mice exhibit continuous tumor growth leading to animal mortality within four weeks. To better understand the photothermal effect of HCIONPs and potentially improve their photothermal efficiency, we compare their photothermal effect and crystal structures with commercially available magnetic nanoparticles. Our data show that after applying the same laser to commercially available magnetic nanoparticles from FeREX at the same iron concentration, the temperature is only increased by 7.4 °C. We further use synchrotron-XRD and high-resolution TEM to compare the crystal structures of both magnetic nanoparticles. The data show that both magnetic nanoparticles are Fe3O4 but as-prepared HCIONPs are highly crystalline and have preferred lattice plane orientations, which may be the cause of their enhanced photothermal efficiency. Taken together, these data suggest that HCIONPs, with unique lattice orientations and small size as well as antifouling coating, can be used as promising mediators for photothermal cancer therapy.
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Affiliation(s)
- Hongwei Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, 428 Church Street,, Ann Arbor, Michigan 48109, USA.
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232
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Golovin YI, Klyachko NL, Sokolsky-Papkov M, Kabanov AV. Single-domain magnetic nanoparticles as force generators for the nanomechanical control of biochemical reactions by low-frequency magnetic fields. ACTA ACUST UNITED AC 2013. [DOI: 10.3103/s1062873813110130] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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233
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Yen SK, Padmanabhan P, Selvan ST. Multifunctional iron oxide nanoparticles for diagnostics, therapy and macromolecule delivery. Theranostics 2013; 3:986-1003. [PMID: 24396508 PMCID: PMC3881099 DOI: 10.7150/thno.4827] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 12/18/2012] [Indexed: 12/20/2022] Open
Abstract
In recent years, multifunctional nanoparticles (NPs) consisting of either metal (e.g. Au), or magnetic NP (e.g. iron oxide) with other fluorescent components such as quantum dots (QDs) or organic dyes have been emerging as versatile candidate systems for cancer diagnosis, therapy, and macromolecule delivery such as micro ribonucleic acid (microRNA). This review intends to highlight the recent advances in the synthesis and application of multifunctional NPs (mainly iron oxide) in theranostics, an area used to combine therapeutics and diagnostics. The recent applications of NPs in miRNA delivery are also reviewed.
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234
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Anghel L, Duca G. A Review of the Biogenesis of Iron Nanoparticles Using Microorganims and Their Applications. CHEMISTRY JOURNAL OF MOLDOVA 2013. [DOI: 10.19261/cjm.2013.08(2).03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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235
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Boulais E, Lachaine R, Hatef A, Meunier M. Plasmonics for pulsed-laser cell nanosurgery: Fundamentals and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2013. [DOI: 10.1016/j.jphotochemrev.2013.06.001] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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236
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Wong OA, Hansen RJ, Ni TW, Heinecke CL, Compel WS, Gustafson DL, Ackerson CJ. Structure-activity relationships for biodistribution, pharmacokinetics, and excretion of atomically precise nanoclusters in a murine model. NANOSCALE 2013; 5:10525-33. [PMID: 24057086 PMCID: PMC3870010 DOI: 10.1039/c3nr03121g] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The absorption, distribution, metabolism and excretion (ADME) and pharmacokinetic (PK) properties of inorganic nanoparticles with hydrodynamic diameters between 2 and 20 nm are presently unpredictable. It is unclear whether unpredictable in vivo properties and effects arise from a subset of molecules in a nanomaterials preparation, or if the ADME/PK properties are ensemble properties of an entire preparation. Here we characterize the ADME/PK properties of atomically precise preparations of ligand protected gold nanoclusters in a murine model system. We constructed atomistic models and tested in vivo properties for five well defined compounds, based on crystallographically resolved Au25(SR)18 and Au102(SR)44 nanoclusters with different (SR) ligand shells. To rationalize unexpected distribution and excretion properties observed for several clusters in this study and others, we defined a set of atomistic structure-activity relationships (SAR) for nanoparticles, which includes previously investigated parameters such as particle hydrodynamic diameter and net charge, and new parameters such as hydrophobic surface area and surface charge density. Overall we find that small changes in particle formulation can provoke dramatic yet potentially predictable changes in ADME/PK.
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Affiliation(s)
- O. Andrea Wong
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA. Fax: +1 970-491-1081; Tel: +1 970-491-0521
| | - Ryan J. Hansen
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA. Fax: +1 970-297-1276; Tel: +1 970-297-1278
| | - Thomas W. Ni
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA. Fax: +1 970-491-1081; Tel: +1 970-491-0521
| | - Christine L. Heinecke
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA. Fax: +1 970-491-1081; Tel: +1 970-491-0521
| | - W. Scott Compel
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA. Fax: +1 970-491-1081; Tel: +1 970-491-0521
| | - Daniel L. Gustafson
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA. Fax: +1 970-297-1276; Tel: +1 970-297-1278
| | - Christopher J. Ackerson
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA. Fax: +1 970-491-1081; Tel: +1 970-491-0521
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237
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Ohulchanskyy TY, Kopwitthaya A, Jeon M, Guo M, Law WC, Furlani EP, Kim C, Prasad PN. Phospholipid micelle-based magneto-plasmonic nanoformulation for magnetic field-directed, imaging-guided photo-induced cancer therapy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013; 9:1192-202. [DOI: 10.1016/j.nano.2013.05.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 04/19/2013] [Accepted: 05/25/2013] [Indexed: 12/29/2022]
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238
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Plascencia-Villa G, Bahena D, Rodríguez AR, Ponce A, José-Yacamán M. Advanced microscopy of star-shaped gold nanoparticles and their adsorption-uptake by macrophages. Metallomics 2013; 5:242-50. [PMID: 23443314 DOI: 10.1039/c3mt20202j] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Metallic nanoparticles have diverse applications in biomedicine, as diagnostics, image contrast agents, nanosensors and drug delivery systems. Anisotropic metallic nanoparticles possess potential applications in cell imaging and therapy + diagnostics (theranostics), but controlled synthesis and growth of these anisotropic or branched nanostructures has been challenging and usually require use of high concentrations of surfactants. Star-shaped gold nanoparticles were synthesized in high yield through a seed mediated route using HEPES as a precise shape-directing capping agent. Characterization was performed using advanced electron microscopy techniques including atomic resolution TEM, obtaining a detailed characterization of nanostructure and atomic arrangement. Spectroscopy techniques showed that the particles have narrow size distribution, monodispersity and high colloidal stability, with absorbance into NIR region and high efficiency for SERS applications. Gold nanostars showed to be biocompatible and efficiently adsorbed and internalized by macrophages, as revealed by advanced FE-SEM and backscattered electron imaging techniques of complete unstained uncoated cells. Additionally, low voltage STEM and X-ray microanalysis revealed the ultra-structural location and confirmed stability of nanoparticles after endocytosis with high spatial resolution.
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Affiliation(s)
- Germán Plascencia-Villa
- Department of Physics and Astronomy, The University of Texas at San Antonio (UTSA), San Antonio, TX 78249, USA.
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239
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Baffou G, Berto P, Bermúdez Ureña E, Quidant R, Monneret S, Polleux J, Rigneault H. Photoinduced heating of nanoparticle arrays. ACS NANO 2013; 7:6478-88. [PMID: 23895209 DOI: 10.1021/nn401924n] [Citation(s) in RCA: 167] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The temperature distribution throughout arrays of illuminated metal nanoparticles is investigated numerically and experimentally. The two cases of continuous and femtosecond-pulsed illumination are addressed. In the case of continuous illumination, two distinct regimes are evidenced: a temperature confinement regime, where the temperature increase remains confined at the vicinity of each nanosource of heat, and a temperature delocalization regime, where the temperature is uniform throughout the whole nanoparticle assembly despite the heat sources' nanometric size. We show that the occurrence of one regime or another simply depends on the geometry of the nanoparticle distribution. In particular, we derived (i) simple expressions of dimensionless parameters aimed at predicting the degree of temperature confinement and (ii) analytical expressions aimed at estimating the actual temperature increase at the center of an assembly of nanoparticles under illumination, preventing heavy numerical simulations. All these theoretical results are supported by experimental measurements of the temperature distribution on regular arrays of gold nanoparticles under illumination. In the case of femtosecond-pulsed illumination, we explain the two conditions that must be fulfilled to observe a further enhanced temperature spatial confinement.
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Affiliation(s)
- Guillaume Baffou
- Aix Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, UMR 7249, 13013 Marseille, France.
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240
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Cohen Y, Shoushan SY. Magnetic nanoparticles-based diagnostics and theranostics. Curr Opin Biotechnol 2013; 24:672-81. [DOI: 10.1016/j.copbio.2013.01.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 01/08/2013] [Accepted: 01/08/2013] [Indexed: 12/17/2022]
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241
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Abstract
Drug delivery systems (DDSs) face several challenges including site-specific delivery, stability, and the programmed release of drugs. Engineered nanoparticle (NP) surfaces with responsive moieties can enhance the efficacy of DDSs for in vitro and in vivo systems. This triggering process can be achieved through both endogenous (biologically controlled release) and exogenous (external stimuli controlled release) activation. In this review, we will highlight recent examples of the use of triggered release strategies of engineered nanomaterials for in vitro and in vivo applications.
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Affiliation(s)
| | | | | | - Vincent M. Rotello
- Corresponding author at: Department of Chemistry, 710 North Pleasant St., University of Massachusetts, Amherst, MA 01003 USA, Tel.: +1 413 545 058; fax: +1 413 545 4490.
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242
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Wosik J, Pande R, Xie L, Ketharnath D, Srinivasan S, Godin B. Protein adsorption enhanced radio-frequency heating of silica nanoparticles. APPLIED PHYSICS LETTERS 2013; 103:43706. [PMID: 23964135 PMCID: PMC3739802 DOI: 10.1063/1.4816668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Accepted: 07/09/2013] [Indexed: 05/31/2023]
Abstract
Measurements of specific-absorption-rate (SAR) of silica 30, 50, and 100 nm nanoparticles (NP) suspended in water were carried out at 30 MHz in 7 kV/m radio-frequency (rf) electric field. Size dependent, NP-suspension interface related heating of silica NP was observed. To investigate a possible mechanism of heating, bovine serum albumin was adsorbed on the surface of silica NPs in suspension. It resulted in significant enhancement of SAR when compared to bare silica NPs. A calorimetric and rf loss model was used to calculate effective conductivity of silica NP with/without adsorbed albumin as a function of silica size and albumin concentration.
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Affiliation(s)
- Jarek Wosik
- Electrical and Computer Engineering Department, University of Houston, Houston, Texas 77204, USA ; Texas Center for Superconductivity, University of Houston, Houston, Texas 77204, USA
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243
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Cormode DP, Sanchez-Gaytan BL, Mieszawska AJ, Fayad ZA, Mulder WJM. Inorganic nanocrystals as contrast agents in MRI: synthesis, coating and introduction of multifunctionality. NMR IN BIOMEDICINE 2013; 26:766-80. [PMID: 23303729 PMCID: PMC3674179 DOI: 10.1002/nbm.2909] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 10/23/2012] [Accepted: 11/21/2012] [Indexed: 05/18/2023]
Abstract
Inorganic nanocrystals have myriad applications in medicine, including their use as drug or gene delivery complexes, therapeutic hyperthermia agents, in diagnostic systems and as contrast agents in a wide range of medical imaging techniques. In MRI, nanocrystals can produce contrast themselves, with iron oxides having been the most extensively explored, or can be given a coating that generates MR contrast, for example gold nanoparticles coated with gadolinium chelates. These MR-active nanocrystals can be used for imaging of the vasculature, liver and other organs, as well as molecular imaging, cell tracking and theranostics. As a result of these exciting applications, the synthesis and rendering of these nanocrystals as water soluble and biocompatible are therefore highly desirable. We discuss aqueous phase and organic phase methods for the synthesis of inorganic nanocrystals, such as gold, iron oxides and quantum dots. The pros and cons of the various methods are highlighted. We explore various methods for making nanocrystals biocompatible, i.e. direct synthesis of nanocrystals coated with biocompatible coatings, ligand substitution, amphiphile coating and embedding in carrier matrices that can be made biocompatible. Various examples are highlighted and their applications explained. These examples signify that the synthesis of biocompatible nanocrystals with controlled properties has been achieved by numerous research groups and can be applied to a wide range of applications. Therefore, we expect to see reports of preclinical applications of ever more complex MRI-active nanoparticles and their wider exploitation, as well as in novel clinical settings.
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Affiliation(s)
- David P. Cormode
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
- Radiology Department, University of Pennsylvania, 3400 Spruce Street, 1 Silverstein, Philadelphia, PA, 19104
| | - Brenda L. Sanchez-Gaytan
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
| | - Aneta J. Mieszawska
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
| | - Zahi A. Fayad
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
| | - Willem J. M. Mulder
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
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244
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Hyperthermia sensitizes Rhizopus oryzae to posaconazole and itraconazole action through apoptosis. Antimicrob Agents Chemother 2013; 57:4360-8. [PMID: 23817366 DOI: 10.1128/aac.00571-13] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The high mortality rate of mucormycosis with currently available monotherapy has created interest in studying novel strategies for antifungal agents. With the exception of amphotericin B (AMB), the triazoles (posaconazole [PCZ] and itraconazole [ICZ]) are fungistatic in vitro against Rhizopus oryzae . We hypothesized that growth at a high temperature (42°C) results in fungicidal activity of PCZ and ICZ that is mediated through apoptosis. R. oryzae had high MIC values for PCZ and ICZ (16 to 64 μg/ml) at 25°C; in contrast, the MICs for PCZ and ICZ were significantly lower at 37°C (8 to 16 μg/ml) and 42°C (0.25 to 1 μg/ml). Furthermore, PCZ and ICZ dose-dependent inhibition of germination was more pronounced at 42°C than at 37°C. In addition, intracellular reactive oxygen species (ROS) increased significantly when fungi were exposed to antifungals at 42°C. Characteristic cellular changes of apoptosis in R. oryzae were induced by the accumulation of intracellular reactive oxygen species. Cells treated with PCZ or ICZ in combination with hyperthermia (42°C) exhibited characteristic markers of early apoptosis: phosphatidylserine externalization visualized by annexin V staining, membrane depolarization visualized by bis-[1,3-dibutylbarbituric acid] trimethine oxonol (DiBAC) staining, and increased metacaspase activity. Moreover, terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling (TUNEL) assay and DAPI (4',6-diamidino-2-phenylindole) staining demonstrated DNA fragmentation and condensation, respectively. The addition of N-acetylcysteine increased fungal survival, prevented apoptosis, reduced ROS accumulation, and decreased metacaspase activation. We concluded that hyperthermia, either alone or in the presence of PCZ or ICZ, induces apoptosis in R. oryzae. Local thermal delivery could be a therapeutically useful adjunct strategy for these refractory infections.
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245
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Manikandan M, Hasan N, Wu HF. Platinum nanoparticles for the photothermal treatment of Neuro 2A cancer cells. Biomaterials 2013; 34:5833-42. [DOI: 10.1016/j.biomaterials.2013.03.077] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 03/23/2013] [Indexed: 01/28/2023]
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246
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Li J, Han J, Xu T, Guo C, Bu X, Zhang H, Wang L, Sun H, Yang B. Coating urchinlike gold nanoparticles with polypyrrole thin shells to produce photothermal agents with high stability and photothermal transduction efficiency. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:7102-7110. [PMID: 23692027 DOI: 10.1021/la401366c] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Photothermal therapy using inorganic nanoparticles (NPs) is a promising technique for the selective treatment of tumor cells because of their capability to convert the absorbed radiation into heat energy. Although anisotropic gold (Au) NPs present an excellent photothermal effect, the poor structural stability during storage and/or upon laser irradiation still limits their practical application as efficient photothermal agents. With the aim of improving the stability, in this work we adopted biocompatible polypyrrole (PPy) as the shell material for coating urchinlike Au NPs. The experimental results indicate that a several nanometer PPy shell is enough to maintain the structural stability of NPs. In comparison to the bare NPs, PPy-coated NPs exhibit improved structural stability toward storage, heat, pH, and laser irradiation. In addition, the thin shell of PPy also enhances the photothermal transduction efficiency (η) of PPy-coated Au NPs, resulting from the absorption of PPy in the red and near-infrared (NIR) regions. For example, the PPy-coated Au NPs with an Au core diameter of 120 nm and a PPy shell of 6.0 nm exhibit an η of 24.0% at 808 nm, which is much higher than that of bare Au NPs (η = 11.0%). As a primary attempt at photothermal therapy, the PPy-coated Au NPs with a 6.0 nm PPy shell exhibit an 80% death rate of Hela cells under 808 nm NIR laser irradiation.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, PR China
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247
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Filippousi M, Papadimitriou SA, Bikiaris DN, Pavlidou E, Angelakeris M, Zamboulis D, Tian H, Van Tendeloo G. Novel core–shell magnetic nanoparticles for Taxol encapsulation in biodegradable and biocompatible block copolymers: Preparation, characterization and release properties. Int J Pharm 2013; 448:221-30. [DOI: 10.1016/j.ijpharm.2013.03.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 03/12/2013] [Accepted: 03/13/2013] [Indexed: 11/29/2022]
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248
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Tuning thermoresponsive behavior of diblock copolymers and their gold core hybrids. Part 2. How properties change depending on block attachment to gold nanoparticles. J Colloid Interface Sci 2013; 396:39-46. [PMID: 23484770 DOI: 10.1016/j.jcis.2013.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 12/30/2012] [Accepted: 01/04/2013] [Indexed: 11/21/2022]
Abstract
Thermoresponsive diblock copolymers of di(ethylene glycol) methyl ether methacrylate (DEGMA) and oligo(ethylene glycol) methyl ether acrylate (OEGA) were synthesized by reversible addition-fragmentation chain transfer polymerization, allowing us to prepare diblocks with a thiol group at the desired chain end, and bond that block to a ~20 nm gold nanoparticle core. The cloud point and coil-globule transition window were measured by UV-vis spectroscopy. The gold core lowered the cloud point and narrowed the coil-globule transition window of all the diblock hybrids, but raised the cloud point of statistical copolymer hybrids that had similar cloud points. The extent of the change in the thermo-response properties of the hybrid diblock copolymers was more significant when the gold was bonded to the DEGMA block than the OEGA block. This block is less hydrophilic and sterically hindered than OEGA and may adsorb more effectively to the gold so that the hydration of the outer OEGA block is relatively unaffected by the Au core. This work indicates that diblock copolymers allow factors such as steric bulk and the effects on arrangement around a metal core to be effective tools for manipulating thermo-responsive properties that are not as significant with statistical copolymers.
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249
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McCoy RS, Choi S, Collins G, Ackerson BJ, Ackerson CJ. Superatom paramagnetism enables gold nanocluster heating in applied radiofrequency fields. ACS NANO 2013; 7:2610-2616. [PMID: 23390932 DOI: 10.1021/nn306015c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The Au102(pMBA)44 nanocluster becomes a superatom paramagnet after chemical oxidation. Solutions of paramagnetic Au102(pMBA)44 heat in an oscillating magnetic field component of an RF field, but not in the electric component. Combined, these experiments suggest that paramagnetic Au102(pMBA)44 heats through interactions of spin magnetic moment with an external oscillating magnetic field. These results may clarify some current controversy regarding gold nanoparticle heating in radiofrequency fields.
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Affiliation(s)
- Ruthanne S McCoy
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80521, United States
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250
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Fraga S, Faria H, Soares ME, Duarte JA, Soares L, Pereira E, Costa-Pereira C, Teixeira JP, de Lourdes Bastos M, Carmo H. Influence of the surface coating on the cytotoxicity, genotoxicity and uptake of gold nanoparticles in human HepG2 cells. J Appl Toxicol 2013; 33:1111-9. [PMID: 23529830 DOI: 10.1002/jat.2865] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 12/28/2012] [Accepted: 01/17/2013] [Indexed: 02/06/2023]
Abstract
The toxicological profile of gold nanoparticles (AuNPs) remains controversial. Significant efforts to develop surface coatings to improve biocompatibility have been carried out. In vivo biodistribution studies have shown that the liver is a target for AuNPs accumulation. Therefore, we investigated the effects induced by ~20 nm spherical AuNPs (0-200 μM Au) with two surface coatings, citrate (Cit) compared with 11-mercaptoundecanoic acid (11-MUA), in human liver HepG2 cells. Cytotoxicity was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) reduction and lactate dehydrogenase (LDH) release assays after 24 to 72 h of incubation. DNA damage was assessed by the comet assay, 24 h after incubation with the capped AuNPs. Uptake and subcellular distribution of the tested AuNPs was evaluated by quantifying the gold intracellular content by graphite furnace atomic absorption spectrometry (GFAAS) and transmission electron microscopy (TEM), respectively. The obtained results indicate that both differently coated AuNPs did not induce significant cytotoxicity. An inverse concentration-dependent increase in comet tail intensity and tail moment was observed in Cit-AuNPs- but not in MUA-AuNPs-exposed cells. Both AuNPs were internalized in a concentration-dependent manner. However, no differences were found in the extent of the internalization between the two types of NPs. Electron-dense deposits of agglomerates of Cit- and MUA-AuNPs were observed either inside endosomes or in the intercellular spaces. In spite of the absence of cytotoxicity, DNA damage was observed after exposure to the lower concentrations of Cit- but not to MUA-AuNPs. Thus, our data supports the importance of the surface properties to increase the biocompatibility and safety of AuNPs.
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Affiliation(s)
- Sónia Fraga
- REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313, Porto, Portugal.
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