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Vicentini M, Vassallo M, Ferrero R, Androulakis I, Manzin A. In silico evaluation of adverse eddy current effects in preclinical tests of magnetic hyperthermia. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 223:106975. [PMID: 35792363 DOI: 10.1016/j.cmpb.2022.106975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/17/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND OBJECTIVE Magnetic hyperthermia is an oncological therapy that employs magnetic nanoparticles activated by alternating current (AC) magnetic fields with frequencies between 50 kHz and 1 MHz, to release heat in a diseased tissue and produce a local temperature increase of about 5 °C. To assess the treatment efficacy, in vivo tests on murine models (mice and rats) are typically performed. However, these are often carried out without satisfying the biophysical constraints on the electromagnetic (EM) field exposure, with consequent generation of hot spots and undesirable heating of healthy tissues. Here, we investigate possible adverse eddy current effects, to estimate AC magnetic field parameters (frequency and amplitude) that can potentially guarantee safe animal tests of magnetic hyperthermia. METHODS The analysis is performed through in silico modelling by means of finite element simulation tools, specifically developed to study eddy current effects in computational animal models, during magnetic hyperthermia treatments. The numerical tools enable us to locally evaluate the specific absorption rate (SAR) and the produced temperature increase, under different field exposure conditions. RESULTS The simulation outcomes demonstrate that in mice with weight lower than 30 g the thermal effects induced by AC magnetic fields are very weak, also when slightly overcoming the Hergt-Dutz limit, that is the product of the magnetic field amplitude and frequency should be lower than 5·109 A/(m·s). Conversely, we observe significant temperature increases in 500 g rats, amplified when the field is applied transversally to the body longitudinal axis. A strong mitigation of side-effects can be achieved by introducing water boluses or by applying focused fields. CONCLUSIONS The developed physics-based modelling approach has proved to be a useful predictive tool for the optimization of preclinical tests of magnetic hyperthermia, allowing the identification of proper EM field conditions and the design of setups that guarantee safe levels of field exposure during animal treatments. In such contest, the obtained results can be considered as valid indicators to assess reference levels for animal testing of biomedical techniques that involve EM fields, like magnetic hyperthermia, thus complying with the Directive 2010/63/EU on the protection of animals used for scientific purposes.
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Affiliation(s)
- Marta Vicentini
- Istituto Nazionale di Ricerca Metrologica (INRIM), Strada delle Cacce 91, 10135 Torino, Italy; Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Marta Vassallo
- Istituto Nazionale di Ricerca Metrologica (INRIM), Strada delle Cacce 91, 10135 Torino, Italy; Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Riccardo Ferrero
- Istituto Nazionale di Ricerca Metrologica (INRIM), Strada delle Cacce 91, 10135 Torino, Italy
| | - Ioannis Androulakis
- Erasmus MC Cancer Institute, University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Alessandra Manzin
- Istituto Nazionale di Ricerca Metrologica (INRIM), Strada delle Cacce 91, 10135 Torino, Italy.
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Etemadi H, Plieger PG. Magnetic Fluid Hyperthermia Based on Magnetic Nanoparticles: Physical Characteristics, Historical Perspective, Clinical Trials, Technological Challenges, and Recent Advances. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000061] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hossein Etemadi
- School of Fundamental Sciences Massey University Palmerston North 4474 New Zealand
| | - Paul G. Plieger
- School of Fundamental Sciences Massey University Palmerston North 4474 New Zealand
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Escudero-Duch C, Vilaboa N. Recent efforts in the development of nanomaterials to control transgene expression. Nanomedicine (Lond) 2020; 15:2019-2022. [PMID: 32779525 DOI: 10.2217/nnm-2020-0227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Clara Escudero-Duch
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain.,Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
| | - Nuria Vilaboa
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain.,Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
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Dulińska-Litewka J, Łazarczyk A, Hałubiec P, Szafrański O, Karnas K, Karewicz A. Superparamagnetic Iron Oxide Nanoparticles-Current and Prospective Medical Applications. MATERIALS 2019; 12:ma12040617. [PMID: 30791358 PMCID: PMC6416629 DOI: 10.3390/ma12040617] [Citation(s) in RCA: 241] [Impact Index Per Article: 48.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 02/02/2019] [Accepted: 02/13/2019] [Indexed: 02/07/2023]
Abstract
The recent, fast development of nanotechnology is reflected in the medical sciences. Superparamagnetic Iron Oxide Nanoparticles (SPIONs) are an excellent example. Thanks to their superparamagnetic properties, SPIONs have found application in Magnetic Resonance Imaging (MRI) and magnetic hyperthermia. Unlike bulk iron, SPIONs do not have remnant magnetization in the absence of the external magnetic field; therefore, a precise remote control over their action is possible. This makes them also useful as a component of the advanced drug delivery systems. Due to their easy synthesis, biocompatibility, multifunctionality, and possibility of further surface modification with various chemical agents, SPIONs could support many fields of medicine. SPIONs have also some disadvantages, such as their high uptake by macrophages. Nevertheless, based on the ongoing studies, they seem to be very promising in oncological therapy (especially in the brain, breast, prostate, and pancreatic tumors). The main goal of our paper is, therefore, to present the basic properties of SPIONs, to discuss their current role in medicine, and to review their applications in order to inspire future developments of new, improved SPION systems.
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Affiliation(s)
- Joanna Dulińska-Litewka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Kraków, Poland.
| | - Agnieszka Łazarczyk
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Kraków, Poland.
| | - Przemysław Hałubiec
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Kraków, Poland.
| | - Oskar Szafrański
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Kraków, Poland.
| | - Karolina Karnas
- Department of Chemistry, Jagiellonian University, 2 Gronostajowa St., 30-387 Kraków, Poland.
| | - Anna Karewicz
- Department of Chemistry, Jagiellonian University, 2 Gronostajowa St., 30-387 Kraków, Poland.
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Voellmy R, Zürcher O, Zürcher M, de Viragh PA, Hall AK, Roberts SM. Targeted heat activation of HSP promoters in the skin of mammalian animals and humans. Cell Stress Chaperones 2018; 23:455-466. [PMID: 29417383 PMCID: PMC6045553 DOI: 10.1007/s12192-018-0875-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 10/18/2022] Open
Abstract
The use of highly inducible HSP promoters for exerting spatial and/or temporal control over the expression of therapeutic transgenes has long been discussed. Localized and time-limited induction of the heat shock response may potentially also be of medical interest. However, such applications would require targeted delivery of heat doses capable of activating HSP promoters in tissues or organs of interest. Accessible areas, including the skin and tissues immediately underneath it, may be most readily targeted. A few applications for heat-directed or heat-controlled therapy in the skin might involve expression of proteins to restore or protect normal skin function, protein antigens for vaccination/immunotherapy, vaccine viruses or even systemically active proteins, e.g., cytokines and chemokines. A review of the literature relating to localized heat activation of HSP promoters and HSP genes in the skin revealed that a multitude of different technologies has been explored in small animal models. In contrast, we uncovered few publications that examine HSP promoter activation in human skin. None of these publications has a therapeutic focus. We present herein two, clinically relevant, developments of heating technologies that effectively activate HSP promoters in targeted regions of human skin. The first development advances a system that is capable of reliably activating HSP promoters in human scalp, in particular in hair follicles. The second development outlines a simple, robust, and inexpensive methodology for locally activating HSP promoters in small, defined skin areas.
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Affiliation(s)
- Richard Voellmy
- HSF Pharmaceuticals S.A., 1814 La Tour-de-Peilz, Switzerland
- Department of Physiological Sciences, University of Florida, Gainesville, FL 32611 USA
| | - Olivier Zürcher
- HSF Pharmaceuticals S.A., 1814 La Tour-de-Peilz, Switzerland
| | - Manon Zürcher
- HSF Pharmaceuticals S.A., 1814 La Tour-de-Peilz, Switzerland
| | - Pierre A. de Viragh
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Alexis K. Hall
- Department of Physical Therapy, University of Florida College of Public Health and Health Professions, Gainesville, FL 32611 USA
| | - Stephen M. Roberts
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, University of Florida, Gainesville, FL 32611 USA
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Abstract
Although viral vectors comprise the majority of gene delivery vectors, their various safety, production, and other practical concerns have left a research gap to be addressed. The non-viral vector space encompasses a growing variety of physical and chemical methods capable of gene delivery into the nuclei of target cells. Major physical methods described in this chapter are microinjection, electroporation, and ballistic injection, magnetofection, sonoporation, optical transfection, and localized hyperthermia. Major chemical methods described in this chapter are lipofection, polyfection, gold complexation, and carbon-based methods. Combination approaches to improve transfection efficiency or reduce immunological response have shown great promise in expanding the scope of non-viral gene delivery.
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Affiliation(s)
- Chi Hong Sum
- University of Waterloo, School of Pharmacy, Waterloo, ON, Canada
| | | | - Shirley Wong
- University of Waterloo, School of Pharmacy, Waterloo, ON, Canada
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Prévot G, Mornet S, Lorenzato C, Kauss T, Adumeau L, Gaubert A, Baillet J, Barthélémy P, Clofent-Sanchez G, Crauste-Manciet S. Data on iron oxide core oil-in-water nanoemulsions for atherosclerosis imaging. Data Brief 2017; 15:876-881. [PMID: 29159224 PMCID: PMC5675726 DOI: 10.1016/j.dib.2017.10.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/13/2017] [Accepted: 10/23/2017] [Indexed: 11/23/2022] Open
Abstract
The data presented in this article are related to the publication entitled "Iron oxide core oil-in-water nanoemulsion as tracer for atherosclerosis MPI and MRI imaging" (Prévot et al., 2017) [1]. Herein we describe the synthesis and the characteristics of the Superparamagnetic Iron Oxide Nanoparticles (SPION) loaded inside nanoemulsions (NEs). Focus was set on obtaining SPION with narrow size distribution and close to superparamagnetic limit (20 nm) in order to reach a reasonable magnetic signal. Nanoparticles (NPs) of three different sizes were obtained (7, 11 and 18 nm) and characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), diffuse reflectance infrared Fourier transform (DRIFT) and thermogravimetric analysis (TGA). SPION were coated with oleic acid (OA) in order to load them inside the oily core of NEs droplets. SPION loaded NEs were magnetically sorted using MACS® MS Column (Miltenyi Biotec) and iron quantification was performed by UV-spectrometry measurements.
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Affiliation(s)
- Geoffrey Prévot
- Univ. Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux, France
| | - Stéphane Mornet
- CNRS, Univ. Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Cyril Lorenzato
- Univ. Bordeaux, CNRS UMR 5536, CRMSB, Centre de Résonance Magnétique des Systèmes Biologiques, F-33000 Bordeaux, France
| | - Tina Kauss
- Univ. Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux, France
| | - Laurent Adumeau
- CNRS, Univ. Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Alexandra Gaubert
- Univ. Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux, France
| | - Julie Baillet
- Univ. Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux, France
| | - Philippe Barthélémy
- Univ. Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux, France
| | - Gisèle Clofent-Sanchez
- Univ. Bordeaux, CNRS UMR 5536, CRMSB, Centre de Résonance Magnétique des Systèmes Biologiques, F-33000 Bordeaux, France
| | - Sylvie Crauste-Manciet
- Univ. Bordeaux, INSERM, U1212, CNRS UMR 5320, ARNA, ARN: Régulations Naturelle et Artificielle, ChemBioPharm, F-33000 Bordeaux, France
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Hemery G, Keyes AC, Garaio E, Rodrigo I, Garcia JA, Plazaola F, Garanger E, Sandre O. Tuning Sizes, Morphologies, and Magnetic Properties of Monocore Versus Multicore Iron Oxide Nanoparticles through the Controlled Addition of Water in the Polyol Synthesis. Inorg Chem 2017; 56:8232-8243. [DOI: 10.1021/acs.inorgchem.7b00956] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gauvin Hemery
- LCPO, CNRS UMR 5629/Univ. Bordeaux/Bordeaux-INP, ENSCBP 16 avenue Pey Berland, 33607 Pessac, France
| | - Anthony C. Keyes
- LCPO, CNRS UMR 5629/Univ. Bordeaux/Bordeaux-INP, ENSCBP 16 avenue Pey Berland, 33607 Pessac, France
| | - Eneko Garaio
- Elektrizitatea
eta Elektronika Saila, UPV/EHU, 48940 Leioa, Spain
| | - Irati Rodrigo
- Elektrizitatea
eta Elektronika Saila, UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Parque Tecnológico de Bizkaia, Ed. 50, 48160 Derio, Spain
| | - Jose Angel Garcia
- BCMaterials, Parque Tecnológico de Bizkaia, Ed. 50, 48160 Derio, Spain
- Fisika Aplikatua II Saila, UPV/EHU, 48940 Leioa, Spain
| | | | - Elisabeth Garanger
- LCPO, CNRS UMR 5629/Univ. Bordeaux/Bordeaux-INP, ENSCBP 16 avenue Pey Berland, 33607 Pessac, France
| | - Olivier Sandre
- LCPO, CNRS UMR 5629/Univ. Bordeaux/Bordeaux-INP, ENSCBP 16 avenue Pey Berland, 33607 Pessac, France
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Rodrigues HF, Capistrano G, Mello FM, Zufelato N, Silveira-Lacerda E, Bakuzis AF. Precise determination of the heat delivery duringin vivomagnetic nanoparticle hyperthermia with infrared thermography. Phys Med Biol 2017; 62:4062-4082. [DOI: 10.1088/1361-6560/aa6793] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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