1
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Vennemann A, Breitenstein D, Tallarek E, Mørch Ý, Schmid R, Wiemann M. Subcellular detection of PEBCA particles in macrophages: combining darkfield microscopy, confocal Raman microscopy, and ToF-SIMS analysis. Drug Deliv Transl Res 2022; 12:2075-2088. [PMID: 35182369 PMCID: PMC9360116 DOI: 10.1007/s13346-022-01128-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2022] [Indexed: 01/07/2023]
Abstract
The detection of biomedical organic nanocarriers in cells and tissues is still an experimental challenge. Here we developed an imaging strategy for the label-free detection of poly (ethylbutyl cyanoacrylate) (PEBCA) particles. Experiments were carried out with phagocytic NR8383 macrophages exposed to non-toxic and non-activating concentrations of fluorescent (PEBCA NR668 and PEBCA NR668/IR), non-fluorescent (PEBCA), and cabazitaxel-loaded PEBCA particles (PEBCA CBZ). Exposure to PEBCA NR668 revealed an inhomogeneous particle uptake similar to what was obtained with the free modified Nile Red dye (NR668). In order to successfully identify the PEBCA-loaded cells under label-free conditions, we developed an imaging strategy based on enhanced darkfield microscopy (DFM), followed by confocal Raman microscopy (CRM) and time-of-flight secondary ion mass spectrometry (ToF–SIMS). Nitrile groups of the PEBCA matrix and PEBCA ions were used as suitable analytes for CRM and ToF–SIMS, respectively. Masses found with ToF–SIMS were further confirmed by Orbitrap-SIMS. The combined approach allowed to image small (< 1 µm) PEBCA-containing phagolysosomes, which were identified as PEBCA-containing compartments in NR8383 cells by electron microscopy. The combination of DFM, CRM, and ToF–SIMS is a promising strategy for the label-free detection of PEBCA particles.
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Affiliation(s)
- Antje Vennemann
- IBE R&D Institute for Lung Health gGmbH, Mendelstr. 11, 48149, Münster, Germany
| | | | | | - Ýrr Mørch
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway
| | - Ruth Schmid
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway
| | - Martin Wiemann
- IBE R&D Institute for Lung Health gGmbH, Mendelstr. 11, 48149, Münster, Germany.
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2
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Vauthier C. A journey through the emergence of nanomedicines with poly(alkylcyanoacrylate) based nanoparticles. J Drug Target 2019; 27:502-524. [PMID: 30889991 DOI: 10.1080/1061186x.2019.1588280] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Starting in the late 1970s, the pioneering work of Patrick Couvreur gave birth to the first biodegradable nanoparticles composed of a biodegradable synthetic polymer. These nanoparticles, made of poly(alkylcyanoacrylate) (PACA), were the first synthetic polymer-based nanoparticulate drug carriers undergoing a phase III clinical trial so far. Analyzing the journey from the birth of PACA nanoparticles to their clinical evaluation, this paper highlights their remarkable adaptability to bypass various drug delivery challenges found on the way. At present, PACA nanoparticles include a wide range of nanoparticles that can associate drugs of different chemical nature and can be administered in vivo by different routes. The most recent technologies giving the nanoparticles customised functions could also be implemented on this family of nanoparticles. Through different examples, this paper discusses the seminal role of the PACA nanoparticles' family in the development of nanomedicines.
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Affiliation(s)
- Christine Vauthier
- a Institut Galien Paris Sud, UMR CNRS 8612 , Université Paris-Sud , Chatenay-Malabry Cedex , France
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3
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Obinu A, Rassu G, Corona P, Maestri M, Riva F, Miele D, Giunchedi P, Gavini E. Poly (ethyl 2-cyanoacrylate) nanoparticles (PECA-NPs) as possible agents in tumor treatment. Colloids Surf B Biointerfaces 2019; 177:520-528. [PMID: 30822627 DOI: 10.1016/j.colsurfb.2019.02.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/29/2019] [Accepted: 02/19/2019] [Indexed: 01/04/2023]
Abstract
Tumor eradication has many challenges due to the difficulty of selectively delivering anticancer drugs to malignant cells avoiding contact with healthy tissues/organs. The improvement of antitumor efficacy and the reduction of systemic side effects can be achieved using drug loaded nanoparticles. In this study, poly (ethyl 2-cyanoacrylate) nanoparticles (PECA-NPs) were prepared using an emulsion polymerization method and their potential for cancer treatment was investigated. The size, polydispersity index and zeta potential of prepared nanoparticles are about 80 nm, 0.08 and -39.7 mV, respectively. The stability test shows that the formulation is stable for 15 days, while an increase in particle size occurs after 30 days. TEM reveals the spherical morphology of nanoparticles; furthermore, FTIR and 1H NMR analyses confirm the structure of PECA-NPs and the complete polymerization. The nanoparticles demonstrate an in vitro concentration-dependent cytotoxicity against human epithelial colorectal adenocarcinoma cell lines (Caco-2), as assessed by MTT assay. The anticancer activity of PECA-NPs was studied on 3D tumor spheroids models of hepatocellular carcinoma (HepG2) and kidney adenocarcinoma cells (A498) to better understand how the nanoparticles could interact with a complex structure such as a tumor. The results confirm the antitumor activity of PECA-NPs. Therefore, these systems can be considered good candidates in tumor treatment.
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Affiliation(s)
- Antonella Obinu
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
| | - Giovanna Rassu
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Paola Corona
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Marcello Maestri
- IRCCS Policlinico San Matteo Foundation and Department of Clinical-Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
| | - Federica Riva
- Department of Public Health, Experimental and Forensic Medicine-Histology and Embryology Unit, University of Pavia, Pavia, Italy
| | - Dalila Miele
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Paolo Giunchedi
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy.
| | - Elisabetta Gavini
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy.
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4
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Khan AR, Yang X, Fu M, Zhai G. Recent progress of drug nanoformulations targeting to brain. J Control Release 2018; 291:37-64. [DOI: 10.1016/j.jconrel.2018.10.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/03/2018] [Accepted: 10/04/2018] [Indexed: 02/08/2023]
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5
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López-Moreno ML, Cedeño-Mattei Y, Bailón-Ruiz SJ, Vazquez-Nuñez E, Hernandez-Viezcas JA, Perales-Pérez OJ, la Rosa GD, Peralta-Videa JR, Gardea-Torresdey JL. Environmental behavior of coated NMs: Physicochemical aspects and plant interactions. JOURNAL OF HAZARDOUS MATERIALS 2018; 347:196-217. [PMID: 29331809 DOI: 10.1016/j.jhazmat.2017.12.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/17/2017] [Accepted: 12/21/2017] [Indexed: 06/07/2023]
Abstract
The application of nanomaterials (NMs) depends on several characteristics, including polydispersity, shape, surface charge, and composition, among others. However, the specific surface properties of bare NMs induce aggregation, reducing their utilization. Thus, different surface coverages have been developed to avoid or minimize NMs aggregation, making them more stable for the envisioned applications. Carbon-based NMs are usually coated with metals, while metal-based NMs are coated with natural organic compounds including chitosan, dextran, alginate, or citric acid. On the other hand, the coating process is expected to modify the surface properties of the NMs; several coating agents add negative or positive charges to the particles, changing their interaction with the environment. In this review, we analyze the most recent literature about coating processes and the behavior of coated NMs in soil, water, and plants. In particular, the behavior of the most commercialized metal-based NMs, such as TiO2, ZnO, CeO2, CuO, Ag, and Au, and carbon-based NMs are discussed in this review. The available articles about the effects of coated NMs in plants are discussed. Up to now, there is no uniformity in the information to ensure that the surface coverage increases or decreases the effects of NMs in plants. While some parameters are increased, others are decreased. Since the data is contradictory in some cases, the available literature does not allow researchers to determine what concentrations benefit the plants. This review highlights current results and future perspectives on the study of the effects of coated NMs in the environment.
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Affiliation(s)
- Martha L López-Moreno
- Chemistry Department, University of Puerto Rico at Mayaguez, 259 Boulevard Alfonso Valdez, Mayaguez 00681 Puerto Rico; Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States.
| | - Yarilyn Cedeño-Mattei
- Department of Chemistry and Physics, University of Puerto Rico, Ponce, Puerto Rico; Department of Biology, Chemistry, and Environmental Sciences, Interamerican University of Puerto Rico, San Germán, Puerto Rico
| | - Sonia Janet Bailón-Ruiz
- Chemistry and Physics Department, University of Puerto Rico in Ponce, 2152 Santiago de los Caballeros Avenue, Ponce 00734 Puerto Rico
| | - Edgar Vazquez-Nuñez
- Sciences and Engineering Division, University of Guanajuato, Loma del Bosque 103, Col. Lomas del Campestre, C.P. 37150 Guanajuato, Gto., Mexico
| | - José A Hernandez-Viezcas
- Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Oscar Juan Perales-Pérez
- Department of Engineering Sciences and Materials University of Puerto Rico Mayaguez, 00681 Puerto Rico
| | - Guadalupe De la Rosa
- UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; Sciences and Engineering Division, University of Guanajuato, Loma del Bosque 103, Col. Lomas del Campestre, C.P. 37150 Guanajuato, Gto., Mexico
| | - José R Peralta-Videa
- Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, United States
| | - Jorge L Gardea-Torresdey
- Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, United States
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6
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Zhang T, Tang Y, Zhang W, Liu S, Zhao Y, Wang W, Wang J, Xu L, Liu K. Sustained drug release and cancer treatment by an injectable and biodegradable cyanoacrylate-based local drug delivery system. J Mater Chem B 2018; 6:1216-1225. [PMID: 32254182 DOI: 10.1039/c7tb03066e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sustained drug release at specific sites is clinically favorable for the treatment of many diseases. The discovery of new polymeric materials suitable for prolonging drug release, improving therapeutic efficiency, and decreasing systemic toxicity is always of great interest in local sustained-release drug delivery systems (LSRDDSs). In this study, a new cross-linked cyanoacrylate (CA)-based LSRDDS is developed, in which the drug depot consists of a formulation of methoxyethyl cyanoacrylate (MOE-CA) with the cross-linking agent CA-PEG-CA. The MOE-CA endowed the CA polymer with good degradability. The drug-release profile could be affected by the structure and composition ratio of the MOE-CA/CA-PEG-CA monomer. The liquid CA monomer could dissolve the drug without using other solvents, and could polymerize into a solid glue just in a few seconds after injection. An optimal formulation loaded with 5-fluorouracil (J-Fu-1.25) showed excellent anticancer activity both in vitro and in vivo, with 50% survival of the mice and no significant systemic toxicity detected during the experiment. The CA depot might affect the blood flow in microvessels of tumors, thus contributing to the synergetic anticancer effect of 5-fluorouracil. We believe that this work provides a practical, biodegradable, and biocompatible LSRDDS for chemotherapeutic drug delivery that can also be applied universally with various drugs for certain therapeutic aims.
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Affiliation(s)
- Tao Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing, 100850, China.
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7
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Baghirov H, Snipstad S, Sulheim E, Berg S, Hansen R, Thorsen F, Mørch Y, Davies CDL, Åslund AKO. Ultrasound-mediated delivery and distribution of polymeric nanoparticles in the normal brain parenchyma of a metastatic brain tumour model. PLoS One 2018; 13:e0191102. [PMID: 29338016 PMCID: PMC5770053 DOI: 10.1371/journal.pone.0191102] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/28/2017] [Indexed: 01/12/2023] Open
Abstract
The treatment of brain diseases is hindered by the blood-brain barrier (BBB) preventing most drugs from entering the brain. Focused ultrasound (FUS) with microbubbles can open the BBB safely and reversibly. Systemic drug injection might induce toxicity, but encapsulation into nanoparticles reduces accumulation in normal tissue. Here we used a novel platform based on poly(2-ethyl-butyl cyanoacrylate) nanoparticle-stabilized microbubbles to permeabilize the BBB in a melanoma brain metastasis model. With a dual-frequency ultrasound transducer generating FUS at 1.1 MHz and 7.8 MHz, we opened the BBB using nanoparticle-microbubbles and low-frequency FUS, and applied high-frequency FUS to generate acoustic radiation force and push nanoparticles through the extracellular matrix. Using confocal microscopy and image analysis, we quantified nanoparticle extravasation and distribution in the brain parenchyma. We also evaluated haemorrhage, as well as the expression of P-glycoprotein, a key BBB component. FUS and microbubbles distributed nanoparticles in the brain parenchyma, and the distribution depended on the extent of BBB opening. The results from acoustic radiation force were not conclusive, but in a few animals some effect could be detected. P-glycoprotein was not significantly altered immediately after sonication. In summary, FUS with our nanoparticle-stabilized microbubbles can achieve accumulation and displacement of nanoparticles in the brain parenchyma.
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Affiliation(s)
- Habib Baghirov
- Department of Physics, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Sofie Snipstad
- Department of Physics, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Einar Sulheim
- Department of Physics, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Sigrid Berg
- SINTEF Medical Technology, Trondheim, Norway
- Department of Circulation and Medical Imaging, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Rune Hansen
- SINTEF Medical Technology, Trondheim, Norway
- Department of Circulation and Medical Imaging, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Frits Thorsen
- Molecular Imaging Center and Kristian Gerhard Jebsen Brain Tumour Research Centre, Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Yrr Mørch
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Catharina de Lange Davies
- Department of Physics, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- * E-mail:
| | - Andreas K. O. Åslund
- Department of Physics, The Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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8
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Skalová Š, Vyskočil V, Barek J, Navrátil T. Model Biological Membranes and Possibilities of Application of Electrochemical Impedance Spectroscopy for their Characterization. ELECTROANAL 2017. [DOI: 10.1002/elan.201700649] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Štěpánka Skalová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences; Dolejškova 3 182 23 Prague 8 Czech Republic
- Charles University; Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry; Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Vlastimil Vyskočil
- Charles University; Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry; Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Jiří Barek
- Charles University; Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry; Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Tomáš Navrátil
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences; Dolejškova 3 182 23 Prague 8 Czech Republic
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9
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Sulheim E, Iversen TG, To Nakstad V, Klinkenberg G, Sletta H, Schmid R, Hatletveit AR, Wågbø AM, Sundan A, Skotland T, Sandvig K, Mørch Ý. Cytotoxicity of Poly(Alkyl Cyanoacrylate) Nanoparticles. Int J Mol Sci 2017; 18:ijms18112454. [PMID: 29156588 PMCID: PMC5713421 DOI: 10.3390/ijms18112454] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/13/2017] [Accepted: 11/15/2017] [Indexed: 12/17/2022] Open
Abstract
Although nanotoxicology has become a large research field, assessment of cytotoxicity is often reduced to analysis of one cell line only. Cytotoxicity of nanoparticles is complex and should, preferentially, be evaluated in several cell lines with different methods and on multiple nanoparticle batches. Here we report the toxicity of poly(alkyl cyanoacrylate) nanoparticles in 12 different cell lines after synthesizing and analyzing 19 different nanoparticle batches and report that large variations were obtained when using different cell lines or various toxicity assays. Surprisingly, we found that nanoparticles with intermediate degradation rates were less toxic than particles that were degraded faster or more slowly in a cell-free system. The toxicity did not vary significantly with either the three different combinations of polyethylene glycol surfactants or with particle size (range 100–200 nm). No acute pro- or anti-inflammatory activity on cells in whole blood was observed.
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Affiliation(s)
- Einar Sulheim
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
- Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway.
| | - Tore-Geir Iversen
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, 0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway.
| | - Vu To Nakstad
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
| | - Geir Klinkenberg
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
| | - Håvard Sletta
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
| | - Ruth Schmid
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
| | | | - Ane Marit Wågbø
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
| | - Anders Sundan
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 8905 MH, 7491 Trondheim, Norway.
| | - Tore Skotland
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, 0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway.
| | - Kirsten Sandvig
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, 0379 Oslo, Norway.
- Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway.
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway.
| | - Ýrr Mørch
- SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7034 Trondheim, Norway.
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10
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Snipstad S, Berg S, Mørch Ý, Bjørkøy A, Sulheim E, Hansen R, Grimstad I, van Wamel A, Maaland AF, Torp SH, Davies CDL. Ultrasound Improves the Delivery and Therapeutic Effect of Nanoparticle-Stabilized Microbubbles in Breast Cancer Xenografts. ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:2651-2669. [PMID: 28781149 DOI: 10.1016/j.ultrasmedbio.2017.06.029] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/16/2017] [Accepted: 06/29/2017] [Indexed: 05/19/2023]
Abstract
Compared with conventional chemotherapy, encapsulation of drugs in nanoparticles can improve efficacy and reduce toxicity. However, delivery of nanoparticles is often insufficient and heterogeneous because of various biological barriers and uneven tumor perfusion. We investigated a unique multifunctional drug delivery system consisting of microbubbles stabilized by polymeric nanoparticles (NPMBs), enabling ultrasound-mediated drug delivery. The aim was to examine mechanisms of ultrasound-mediated delivery and to determine if increased tumor uptake had a therapeutic benefit. Cellular uptake and toxicity, circulation and biodistribution were characterized. After intravenous injection of NPMBs into mice, tumors were treated with ultrasound of various pressures and pulse lengths, and distribution of nanoparticles was imaged on tumor sections. No effects of low pressures were observed, whereas complete bubble destruction at higher pressures improved tumor uptake 2.3 times, without tissue damage. An enhanced therapeutic effect was illustrated in a promising proof-of-concept study, in which all tumors exhibited regression into complete remission.
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Affiliation(s)
- Sofie Snipstad
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway.
| | - Sigrid Berg
- SINTEF Technology and Society, Trondheim, Norway; Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ýrr Mørch
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Astrid Bjørkøy
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
| | - Einar Sulheim
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway; SINTEF Materials and Chemistry, Trondheim, Norway
| | - Rune Hansen
- SINTEF Technology and Society, Trondheim, Norway; Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ingeborg Grimstad
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
| | - Annemieke van Wamel
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
| | - Astri F Maaland
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
| | - Sverre H Torp
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway; Department of Pathology, St. Olav's University Hospital, Trondheim, Norway
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11
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Åslund AKO, Sulheim E, Snipstad S, von Haartman E, Baghirov H, Starr N, Kvåle Løvmo M, Lelú S, Scurr D, Davies CDL, Schmid R, Mørch Ý. Quantification and Qualitative Effects of Different PEGylations on Poly(butyl cyanoacrylate) Nanoparticles. Mol Pharm 2017; 14:2560-2569. [DOI: 10.1021/acs.molpharmaceut.6b01085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Andreas K. O. Åslund
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Einar Sulheim
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Sofie Snipstad
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Eva von Haartman
- Pharmaceutical
Sciences Laboratory, Åbo Akademi University, Turku, Finland
| | - Habib Baghirov
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Nichola Starr
- School
of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Mia Kvåle Løvmo
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Sylvie Lelú
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - David Scurr
- School
of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | | | - Ruth Schmid
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Ýrr Mørch
- SINTEF Materials and Chemistry, Trondheim, Norway
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