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Baroni S, Carnovale IM, Carrera C, Boccalon M, Guidolin N, Demitri N, Lattuada L, Tedoldi F, Baranyai Z, Aime S. H-Bonding and intramolecular catalysis of proton exchange affect the CEST properties of Eu III complexes with HP-DO3A-like ligands. Chem Commun (Camb) 2021; 57:3287-3290. [PMID: 33656033 DOI: 10.1039/d1cc00366f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eu(HP-DO3A) is present in solution as a mixture of two diastereoisomers whose alcoholic groups are the source of the mobile protons for the CEST effect. The exchange is base catalyzed. Two novel EuIII complexes of HP-DO3A-like ligands containing an amino or a carboxylate functionality in the proximity of the -OH groups showed the occurrence of intramolecular catalysis of the prototropic exchange. New insights into the role of the intramolecular proton exchange on the CEST properties have been gained.
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Affiliation(s)
- Simona Baroni
- Department of Molecular Biotechnologies and Health Sciences, Molecular Imaging Center, University of Torino, Via Nizza 52, 10126 Torino, Italy.
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Synthesis of Magnetic Ions-Doped QDs Synthesized Via a Facial Aqueous Solution Method for Optical/MR Dual-Modality Imaging Applications. J Fluoresc 2021; 31:897-906. [PMID: 33772679 DOI: 10.1007/s10895-021-02720-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
This research reports the preparation and examination of Cadmium Telluride (CdTe) Quantum Dots and doping CdTe QDs with Europium (Eu), Gadolinium (Gd), and Manganese (Mn) prepared in aqueous solution using TGA as a capping agent. Magnetic QDs (MQDs) are important agents for fluorescence (FL) /magnetic resonance (MR) dual-modal imaging due to their excellent optical and magnetic properties. Herein, the chemical bonds, structural, fluorescence, and magnetized properties of CdTe QDs and effect of Mn, Eu, and Gd ions doping on their properties were examined by X-ray powder diffraction (XRD), high-resolution transmission electron microscopy (HRTM), Energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FTIR), photoluminescence spectroscopy (PL), Ultraviolet-visible spectroscopy (UV-Vis), and vibrating sample magnetometer measurements (VSM). Almost similar X-Ray patterns with the absence/presence of ions for all samples with cubic crystal structures were obtained which indicated that the introduction of ions into CdTe QDs could not alter the cubic primary structure of CdTe. Monodisperse size distributed with seemingly-spherical shapes, and also, the estimated mean diameters about 3 and less than 3 nm of QDs were obtained. The effect of X ions injection on the fluorescence and UV-Vis properties of the QDs were also investigated. Optical studies showed the decreases in bandgap as the heating time increases during synthesis while undergoing red-shift. The CdTe nanocrystals with high PL quantum yields were achieved in more than 6 h of heating. Also, investigations have shown the quenching of fluorescence by the existence of ions in the CdTe QDs. Then, all the ions doped QDs exhibited ferromagnetic behavior at room temperature by a vibrating sample magnetometer which confirmed the success of the presentation of ions into CdTe cubic crystal structure. They can have been employed as a suitable contrast agent successfully for biological applications such as FL/MR dual-modal imaging.
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Panich AM, Salti M, Prager O, Swissa E, Kulvelis YV, Yudina EB, Aleksenskii AE, Goren SD, Vul' AY, Shames AI. PVP-coated Gd-grafted nanodiamonds as a novel and potentially safer contrast agent for in vivo MRI. Magn Reson Med 2021; 86:935-942. [PMID: 33724543 DOI: 10.1002/mrm.28762] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 01/14/2023]
Abstract
PURPOSE Testing the potential use of saline suspension of polyvinylpyrrolidone (PVP)-coated gadolinium(Gd)-grafted detonation nanodiamonds (DND) as a novel contrast agent in MRI. METHODS Stable saline suspensions of highly purified de-agglomerated Gd-grafted DND particles coated by a PVP protective shell were prepared. T1 and T2 proton relaxivities of the suspensions with varying gadolinium concentration were measured at 8 Tesla. A series of ex vivo (phantom) and in vivo dynamic scans were obtained in 3 Tesla MRI using PVP-coated Gd-grafted DND and gadoterate meglumin in equal concentrations of gadolinium, and then T1 -weighted hyperintensity was compared. RESULTS The proton relaxivities of PVP-coated Gd-grafted DND were found to be r1 = 15.9 ± 0.8 s-1 mM-1 and r2 = 262 ± 15 s-1 mM-1 , respectively, which are somewhat less than those for uncoated Gd-grafted DND but still high enough. Ex vivo MRI evaluation of PVP-coated Gd-grafted DND results with a dose-dependent T1 -weighted hyperintensity with a significant advantage over the same for gadoterate meglumin. The same was found when the 2 contrast agents were tested in vivo. CONCLUSION The novel MRI contrast agent - saline suspensions of PVP-coated Gd-grafted DND - provides significantly higher signal intensities than the common tracer gadoterate meglumin, therefore increasing its potential for a safer use in clinics.
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Affiliation(s)
- Alexander M Panich
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Moti Salti
- Brain Imaging Research Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ofer Prager
- Department of Physiology and Cell Biology, Brain and Cognitive Sciences, Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Evyatar Swissa
- Department of Physiology and Cell Biology, Brain and Cognitive Sciences, Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yuri V Kulvelis
- Department of Neutron Research, Petersburg Nuclear Physics Institute, National Research Centre "Kurchatov Institute", Gatchina, Russia
| | - Elena B Yudina
- Division of Solid State Electronics, Ioffe Institute, St. Petersburg, Russia
| | | | - Shaul D Goren
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Alexander Ya Vul'
- Division of Solid State Electronics, Ioffe Institute, St. Petersburg, Russia
| | - Alexander I Shames
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Albuquerque GM, Souza-Sobrinha I, Coiado SD, Santos BS, Fontes A, Pereira GAL, Pereira G. Quantum Dots and Gd 3+ Chelates: Advances and Challenges Towards Bimodal Nanoprobes for Magnetic Resonance and Optical Imaging. Top Curr Chem (Cham) 2021; 379:12. [PMID: 33550491 DOI: 10.1007/s41061-021-00325-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/15/2021] [Indexed: 10/22/2022]
Abstract
The development of multimodal nanoprobes has been growing in recent years. Among these novel nanostructures are bimodal systems based on quantum dots (QDs) and low molecular weight Gd3+ chelates, prepared for magnetic resonance imaging (MRI) and optical analyses. MRI is a technique used worldwide that provides anatomic resolution and allows distinguishing of physiological differences at tissue and organ level. On the other hand, optical techniques are very sensitive and allow events to be followed at the cellular or molecular level. Thus, the association of these two techniques has the potential to achieve a more complete comprehension of biological processes. In this review, we present state-of-the-art research concerning the development of potential multimodal optical/paramagnetic nanoprobes based on Gd3+ chelates and QDs, highlighting their preparation strategies and overall properties.
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Affiliation(s)
- Gabriela M Albuquerque
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Av. Jornalista Anibal Fernandes, S/N, 50740-560, Recife, Brazil
| | - Izabel Souza-Sobrinha
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Av. Jornalista Anibal Fernandes, S/N, 50740-560, Recife, Brazil
| | - Samantha D Coiado
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Av. Jornalista Anibal Fernandes, S/N, 50740-560, Recife, Brazil
| | - Beate S Santos
- Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Giovannia A L Pereira
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Av. Jornalista Anibal Fernandes, S/N, 50740-560, Recife, Brazil.
| | - Goreti Pereira
- Departamento de Química Fundamental, CCEN, Universidade Federal de Pernambuco, Av. Jornalista Anibal Fernandes, S/N, 50740-560, Recife, Brazil.
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Mazarío E, Cañete M, Herranz F, Sánchez-Marcos J, de la Fuente JM, Herrasti P, Menéndez N. Highly Efficient T2 Cobalt Ferrite Nanoparticles Vectorized for Internalization in Cancer Cells. Pharmaceuticals (Basel) 2021; 14:124. [PMID: 33562703 PMCID: PMC7914706 DOI: 10.3390/ph14020124] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 01/04/2023] Open
Abstract
Uniform cobalt ferrite nanoparticles have been synthesized using an electrochemical synthesis method in aqueous media. Their colloidal, magnetic, and relaxometric properties have been analyzed. The novelty of this synthesis relies on the use of iron and cobalt foils as precursors, which assures the reproducibility of the iron and cobalt ratio in the structure. A stable and biocompatible targeting conjugate nanoparticle-folic acid (NP-FA) was developed that was capable of targeting FA receptor positivity in HeLa (human cervical cancer) cancer cells. The biocompatibility of NP-FA was assessed in vitro in HeLa cells using the MTT assay, and morphological analysis of the cytoskeleton was performed. A high level of NP-FA binding to HeLa cells was confirmed through qualitative in vitro targeting studies. A value of 479 Fe+Co mM-1s-1 of transverse relaxivity (r2) was obtained in colloidal suspension. In addition, in vitro analysis in HeLa cells also showed an important effect in negative T2 contrast. Therefore, the results show that NP-FA can be a potential biomaterial for use in bio medical trials, especially as a contrast agent in magnetic resonance imaging (MRI).
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Affiliation(s)
- Eva Mazarío
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain; (J.S.-M.); (P.H.); (N.M.)
| | - Magdalena Cañete
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Darwin 2, Cantoblanco, 28049 Madrid, Spain;
| | - Fernando Herranz
- Instituto de Química Médica (IQM-CSIC) and CIBER de Enfermedades Respiratorias (CIBERES), Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Jorge Sánchez-Marcos
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain; (J.S.-M.); (P.H.); (N.M.)
| | - Jesús M. de la Fuente
- Instituto de Nanociencia y Materiales de Aragón, CSIC, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain;
- Networking Biomedical Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Pilar Herrasti
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain; (J.S.-M.); (P.H.); (N.M.)
| | - Nieves Menéndez
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain; (J.S.-M.); (P.H.); (N.M.)
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Chakraborty S, Peruncheralathan S, Ghosh A. Paracetamol and other acetanilide analogs as inter-molecular hydrogen bonding assisted diamagnetic CEST MRI contrast agents. RSC Adv 2021; 11:6526-6534. [PMID: 35423188 PMCID: PMC8694904 DOI: 10.1039/d0ra10410h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/29/2021] [Indexed: 12/12/2022] Open
Abstract
Paracetamol and a few other acetanilide derivatives are reported as a special class of diamagnetic Chemical Exchange Saturation Transfer (diaCEST) MRI contrast agents, that exhibit contrast only when the molecules form inter-molecular hydrogen bonding mediated molecular chains or sheets. Without the protection of the hydrogen bonding their contrast producing labile proton exchanges too quickly with the solvent to produce any appreciable contrast. Through a number of variable temperature experiments we demonstrate that under the conditions when the hydrogen bond network breaks and the high exchange returns back, the contrast drops quickly. The well-known analgesic drug paracetamol shows 12% contrast at a concentration of 15 mM at physiological conditions. With the proven safety track-record for human consumption and appreciable physiological contrast, paracetamol shows promise as a diaCEST agent for in vivo studies.
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Affiliation(s)
- Subhayan Chakraborty
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752050 Odisha India
| | - S Peruncheralathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752050 Odisha India
| | - Arindam Ghosh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752050 Odisha India
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Lattuada L, Horváth D, Colombo Serra S, Fringuello Mingo A, Minazzi P, Bényei A, Forgács A, Fedeli F, Gianolio E, Aime S, Giovenzana GB, Baranyai Z. Enhanced relaxivity of GdIII-complexes with HP-DO3A-like ligands upon the activation of the intramolecular catalysis of the prototropic exchange. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01333a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The simple modification of the hydroxypropyl arm in Gd(HP-DO3A) complex allows to achieve an increased relaxivity by the activation of the intramolecular catalysis of the proton exchange process.
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Affiliation(s)
| | - Dávid Horváth
- Department of Physical Chemistry
- University of Debrecen
- Debrecen, Egyetem tér 1
- Hungary
| | | | | | | | - Attila Bényei
- Department of Physical Chemistry
- University of Debrecen
- Debrecen, Egyetem tér 1
- Hungary
| | - Attila Forgács
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group
- Debrecen
- Hungary
| | | | - Eliana Gianolio
- Department of Molecular Biotechnologies and Health Science
- University of Turin
- Turin
- Italy
| | - Silvio Aime
- Department of Molecular Biotechnologies and Health Science
- University of Turin
- Turin
- Italy
| | - Giovanni B. Giovenzana
- CAGE Chemicals
- 28100 Novara
- Italy
- Dipartimento di Scienze del Farmaco
- Università del Piemonte Orientale
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Qadri Z, Righi V, Li S, Tzika AA. Tracking of Labelled Stem Cells Using Molecular MR Imaging in a Mouse Burn Model in Vivo as an Approach to Regenerative Medicine. ACTA ACUST UNITED AC 2021; 11:1-15. [PMID: 33996249 PMCID: PMC8118598 DOI: 10.4236/ami.2021.111001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Therapies based on stem cell transplants offer significant potential in the field of regenerative medicine. Monitoring the fate of the transplanted stem cells in a timely manner is considered one of the main limitations for long-standing success of stem cell transplants. Imaging methods that visualize and track stem cells in vivo non-invasively in real time are helpful towards the development of successful cell transplantation techniques. Novel molecular imaging methods which are non-invasive particularly such as MRI have been of great recent interest. Hence, mouse models which are of clinical relevance have been studied by injecting contrast agents used for labelling cells such as super-paramagnetic iron-oxide (SPIO) nanoparticles for cellular imaging. The MR techniques which can be used to generate positive contrast images have been of much relevance recently for tracking of the labelled cells. Particularly when the off-resonance region in the vicinity of the labeled cells is selectively excited while suppressing the signals from the non-labeled regions by the method of spectral dephasing. Thus, tracking of magnetically labelled cells employing positive contrast in vivo MR imaging methods in a burn mouse model in a non-invasive way has been the scope of this study. The consequences have direct implications for monitoring labeled stem cells at some stage in wound healing. We suggest that our approach can be used in clinical trials in molecular and regenerative medicine.
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Affiliation(s)
- Zeba Qadri
- MGH NMR Surgical Laboratory, Center for Surgery, Innovation and Bioengineering, Department of Surgery, Massachusetts General and Shriners Burn Hospitals, Harvard Medical School, Boston, USA.,Athinoula A. Martinos Center of Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School Charlestown, USA
| | - Valeria Righi
- MGH NMR Surgical Laboratory, Center for Surgery, Innovation and Bioengineering, Department of Surgery, Massachusetts General and Shriners Burn Hospitals, Harvard Medical School, Boston, USA.,Athinoula A. Martinos Center of Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School Charlestown, USA
| | - Shasha Li
- MGH NMR Surgical Laboratory, Center for Surgery, Innovation and Bioengineering, Department of Surgery, Massachusetts General and Shriners Burn Hospitals, Harvard Medical School, Boston, USA.,Athinoula A. Martinos Center of Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School Charlestown, USA
| | - A Aria Tzika
- MGH NMR Surgical Laboratory, Center for Surgery, Innovation and Bioengineering, Department of Surgery, Massachusetts General and Shriners Burn Hospitals, Harvard Medical School, Boston, USA.,Athinoula A. Martinos Center of Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School Charlestown, USA
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Papan P, Kantapan J, Sangthong P, Meepowpan P, Dechsupa N. Iron (III)-Quercetin Complex: Synthesis, Physicochemical Characterization, and MRI Cell Tracking toward Potential Applications in Regenerative Medicine. CONTRAST MEDIA & MOLECULAR IMAGING 2020; 2020:8877862. [PMID: 33456403 PMCID: PMC7785384 DOI: 10.1155/2020/8877862] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 12/09/2020] [Accepted: 12/16/2020] [Indexed: 12/20/2022]
Abstract
In cell therapy, contrast agents T1 and T2 are both needed for the labeling and tracking of transplanted stem cells over extended periods of time through magnetic resonance imaging (MRI). Importantly, the metal-quercetin complex via coordination chemistry has been studied extensively for biomedical applications, such as anticancer therapies and imaging probes. Herein, we report on the synthesis, characterization, and labeling of the iron (III)-quercetin complex, "IronQ," in circulating proangiogenic cells (CACs) and also explore tracking via the use of a clinical 1.5 Tesla (T) MRI scanner. Moreover, IronQ had a paramagnetic T1 positive contrast agent property with a saturation magnetization of 0.155 emu/g at 1.0 T and longitudinal relaxivity (r1) values of 2.29 and 3.70 mM-1s-1 at 1.5 T for water and human plasma, respectively. Surprisingly, IronQ was able to promote CAC growth in conventional cell culture systems without the addition of specific growth factors. Increasing dosages of IronQ from 0 to 200 μg/mL led to higher CAC uptake, and maximum labeling time was achieved in 10 days. The accumulated IronQ in CACs was measured by two methodologies, an inductively coupled plasma optical emission spectrometry (ICP-EOS) and T1-weighted MRI. In our research, we confirmed that IronQ has excellent dual functions with the use of an imaging probe for MRI. IronQ can also act as a stimulating agent by favoring circulating proangiogenic cell differentiation. Optimistically, IronQ is considered beneficial for alternative labeling and in the tracking of circulation proangiogenic cells and/or other stem cells in applications of cell therapy through noninvasive magnetic resonance imaging in both preclinical and clinical settings.
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Affiliation(s)
- Phakorn Papan
- Research Unit of Molecular Imaging Probes and Radiobiology, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jiraporn Kantapan
- Research Unit of Molecular Imaging Probes and Radiobiology, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Padchanee Sangthong
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Puttinan Meepowpan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nathupakorn Dechsupa
- Research Unit of Molecular Imaging Probes and Radiobiology, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
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Kock FVC, Forgács A, Guidolin N, Stefania R, Vágner A, Gianolio E, Aime S, Baranyai Z. [Gd(AAZTA)] - Derivatives with n-Alkyl Acid Side Chains Show Improved Properties for Their Application as MRI Contrast Agents*. Chemistry 2020; 27:1849-1859. [PMID: 33184913 DOI: 10.1002/chem.202004479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/03/2020] [Indexed: 12/25/2022]
Abstract
Herein, the synthesis and an extensive characterization of two novel Gd(AAZTA) (AAZTA=6-amino-6-methylperhydro-1,4-diazepine tetra acetic acid) derivatives functionalized with short (C2 and C4 ) n-alkyl acid functions are reported. The carboxylate functionality is the site for further conjugations for the design of more specific contrast agents (CAs). Interestingly, it has been found that the synthesized complexes display enhanced properties for use as MRI contrast agents on their own. The stability constants determined by using potentiometric titration and UV/Vis spectrophotometry were slightly higher than the one reported for the parent Gd(AAZTA) complex. This observation might be accounted for by the larger sigma-electron donation of the acyl substituents with respect to the one provided by the methyl group in the parent complex. As far as concerns the kinetic stability, transmetallation experiments with endogenous ions (e.g. Cu2+ ) implied that the Gd3+ ions present in these Gd(AAZTA) derivatives show somewhat smaller susceptibility to chemical exchange towards these ions at 25 °C, close to the physiological condition. The 1 H NMR spectra of the complexes with EuIII and YbIII displayed a set of signals consistent with half the number of methylene protons present on each ligand. The number of resonances was invariant over a large range of temperatures, suggesting the occurrence of a fast interconversion between structural isomers. The relaxivity values (298 K, 20 MHz) were consistent with q=2 being equal to 8.8 mm-1 s-1 for the C2 derivative and 9.4 mm-1 s-1 for the C4 one, that is, sensibly larger than the one reported for Gd(AAZTA) (7.1 mm-1 s-1 ). Variable-temperature (VT)-T2 17 O NMR measurements showed, for both complexes, the presence of two populations of coordinated water molecules, one in fast and one in slow exchange with the bulk water. As the high-resolution 1 H NMR spectra of the analogs with EuIII and YbIII did not show the occurrence of distinct isomers (as frequently observed in other macrocyclic lanthanide(III)-containing complexes), we surmised the presence of two fast-interconverting isomers in solution. The analysis of the 17 O NMR VT-T2 profiles versus temperature allowed their relative molar fraction to be established as 35 % for the isomer with the fast exchanging water and 65 % for the isomer with the water molecules in slower exchange. Finally, 1 H NMRD profiles over an extended range of applied magnetic field strengths have been satisfactory fitted on the basis of the occurrence of the two interconverting species.
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Affiliation(s)
- Flávio Vinicius Crizóstomo Kock
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São Carlense 400, 13566-590, São Paulo, Brazil.,Department of Molecular Biotechnologies and Health Science, University of Turin, Via Nizza 52, 10125, Turin, Italy
| | - Attila Forgács
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, 4010, Debrecen, Hungary.,MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms, Research Group, Egyetem tér 1, Debrecen, 4032, Hungary
| | - Nicol Guidolin
- Bracco Imaging SpA, Bracco Research Center, Via Ribes 5, 10010, Colleretto Giacosa (TO), Italy
| | - Rachele Stefania
- Department of Molecular Biotechnologies and Health Science, University of Turin, Via Nizza 52, 10125, Turin, Italy
| | - Adrienn Vágner
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, 4010, Debrecen, Hungary
| | - Eliana Gianolio
- Department of Molecular Biotechnologies and Health Science, University of Turin, Via Nizza 52, 10125, Turin, Italy
| | - Silvio Aime
- Department of Molecular Biotechnologies and Health Science, University of Turin, Via Nizza 52, 10125, Turin, Italy
| | - Zsolt Baranyai
- Bracco Imaging SpA, Bracco Research Center, Via Ribes 5, 10010, Colleretto Giacosa (TO), Italy
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Introduction to Infrared and Raman-Based Biomedical Molecular Imaging and Comparison with Other Modalities. Molecules 2020; 25:molecules25235547. [PMID: 33256052 PMCID: PMC7731440 DOI: 10.3390/molecules25235547] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 01/18/2023] Open
Abstract
Molecular imaging has rapidly developed to answer the need of image contrast in medical diagnostic imaging to go beyond morphological information to include functional differences in imaged tissues at the cellular and molecular levels. Vibrational (infrared (IR) and Raman) imaging has rapidly emerged among the molecular imaging modalities available, due to its label-free combination of high spatial resolution with chemical specificity. This article presents the physical basis of vibrational spectroscopy and imaging, followed by illustration of their preclinical in vitro applications in body fluids and cells, ex vivo tissues and in vivo small animals and ending with a brief discussion of their clinical translation. After comparing the advantages and disadvantages of IR/Raman imaging with the other main modalities, such as magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography/single-photon emission-computed tomography (PET/SPECT), ultrasound (US) and photoacoustic imaging (PAI), the design of multimodal probes combining vibrational imaging with other modalities is discussed, illustrated by some preclinical proof-of-concept examples.
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62
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Di Gregorio E, Lattuada L, Maiocchi A, Aime S, Ferrauto G, Gianolio E. Supramolecular adducts between macrocyclic Gd(iii) complexes and polyaromatic systems: a route to enhance the relaxivity through the formation of hydrophobic interactions. Chem Sci 2020; 12:1368-1377. [PMID: 34163900 PMCID: PMC8179163 DOI: 10.1039/d0sc03504a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The set-up of reversible binding interactions between the hydrophobic region of macrocyclic GBCAs (Gadolinium Based Contrast Agents) and SO3 -/OH containing pyrene derivatives provides new insights for pursuing relaxivity enhancements of this class of MRI contrast agents. The strong binding affinity allows attaining relaxation enhancements up to 50% at pyrene/GBCA ratios of 3 : 1. High resolution NMR spectra of the Yb-HPDO3A/pyrene system fully support the formation of a supramolecular adduct based on the set-up of hydrophobic interactions. The relaxation enhancement may be accounted for in terms of the increase of the molecular reorientation time (τ R) and the number of second sphere water molecules. This effect is maintained in blood serum and in vivo, as shown by the enhancement of contrast in T 1w-MR images obtained by simultaneous injection of GBCA and pyrene derivatives in mice.
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Affiliation(s)
- Enza Di Gregorio
- Molecular Imaging Center, Department of Molecular Biotechnologies and Health Sciences, University of Torino Via Nizza 52 Torino 10126 Italy
| | - Luciano Lattuada
- Bracco Imaging Spa, Bracco Research Centre Via Ribes 5 Colleretto Giacosa TO 10010 Italy
| | - Alessandro Maiocchi
- Bracco Imaging Spa, Bracco Research Centre Via Ribes 5 Colleretto Giacosa TO 10010 Italy
| | - Silvio Aime
- Molecular Imaging Center, Department of Molecular Biotechnologies and Health Sciences, University of Torino Via Nizza 52 Torino 10126 Italy
| | - Giuseppe Ferrauto
- Molecular Imaging Center, Department of Molecular Biotechnologies and Health Sciences, University of Torino Via Nizza 52 Torino 10126 Italy
| | - Eliana Gianolio
- Molecular Imaging Center, Department of Molecular Biotechnologies and Health Sciences, University of Torino Via Nizza 52 Torino 10126 Italy
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Le TT, Nguyen HD, Nguyen TNL, Phan THT, Ho DQ, Nguyen TV, Le TTH, Vuong TKO, Le KH, La DD, Le TL, Tran LD. Facile Fabrication of Fe
3
O
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@poly(acrylic) Acid Based Ferrofluid with Magnetic Resonance Imaging Contrast Effect. ChemistrySelect 2020. [DOI: 10.1002/slct.202003015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- The Tam Le
- Vinh University, 182 Le Duan Vinh City 460000 Vietnam
| | - Hoa Du Nguyen
- Vinh University, 182 Le Duan Vinh City 460000 Vietnam
| | - Thi Ngoc Linh Nguyen
- Thai Nguyen University of Sciences Tan Thinh Ward Thai Nguyen City 250000 Vietnam
| | | | - Dinh Quang Ho
- Vinh University, 182 Le Duan Vinh City 460000 Vietnam
| | - Thien Vuong Nguyen
- Institute for Tropical Technology Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | | | - Thi Kim Oanh Vuong
- Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Khoa Hai Le
- Institute for Tropical Technology Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Duc Duong La
- Laboratory of Advanced Materials Chemistry Advanced Institute of Materials Science, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Applied Sciences Ton Duc Thang University Ho Chi Minh City Vietnam
| | - Trong Lu Le
- Institute for Tropical Technology Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Lam Dai Tran
- Institute for Tropical Technology Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
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64
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Supercritically dried superparamagnetic mesoporous silica nanoparticles for cancer theranostics. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111124. [DOI: 10.1016/j.msec.2020.111124] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/20/2020] [Accepted: 05/25/2020] [Indexed: 12/23/2022]
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65
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Sjöstrand S, Evertsson M, Jansson T. Magnetomotive Ultrasound Imaging Systems: Basic Principles and First Applications. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2636-2650. [PMID: 32753288 DOI: 10.1016/j.ultrasmedbio.2020.06.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 04/29/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
This review discusses magnetomotive ultrasound, which is an emerging technique that uses superparamagnetic iron oxide nanoparticles as a contrast agent. The key advantage of using nanoparticle-based contrast agents is their ability to reach extravascular targets, whereas commercial contrast agents for ultrasound comprise microbubbles confined to the blood stream. This also extends possibilities for molecular imaging, where the contrast agent is labeled with specific targeting molecules (e.g., antibodies) so that pathologic tissue may be visualized directly. The principle of action is that an external time-varying magnetic field acts to displace the nanoparticles lodged in tissue and thereby their immediate surrounding. This movement is then detected with ultrasound using frequency- or time-domain analysis of echo data. As a contrast agent already approved for magnetic resonance imaging (MRI) by the US Food and Drug Administration, there is a shorter path to clinical translation, although safety studies of magnetomotion are necessary, especially if particle design is altered to affect biodistribution or signal strength. The external modulated magnetic field may be generated by electromagnets, permanent magnets, or a combination of the two. The induced nanoparticle motion may also reveal mechanical material properties of tissue, healthy or diseased, one of several interesting potential future aspects of the technique.
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Affiliation(s)
- Sandra Sjöstrand
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Maria Evertsson
- Department of Clinical Sciences Lund/Biomedical Engineering, Lund University, Lund, Sweden
| | - Tomas Jansson
- Department of Clinical Sciences Lund/Biomedical Engineering, Lund University, Lund, Sweden; Clinical Engineering Skåne, Digitalisering IT/MT, Region Skåne, Lund, Sweden.
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66
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Hannecart A, Stanicki D, Vander Elst L, Muller RN, Brûlet A, Sandre O, Schatz C, Lecommandoux S, Laurent S. Embedding of superparamagnetic iron oxide nanoparticles into membranes of well-defined poly(ethylene oxide)-block-poly(ε-caprolactone) nanoscale magnetovesicles as ultrasensitive MRI probes of membrane bio-degradation. J Mater Chem B 2020; 7:4692-4705. [PMID: 31364686 DOI: 10.1039/c9tb00909d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The present study reports the preparation of poly(ethylene oxide)-block-poly(ε-caprolactone) (PEO-b-PCL) polymer vesicles via a nanoprecipitation method and the loading of two different size hydrophobically coated ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles (a magnetic core size of 4.2 nm and 7.6 nm) into the membrane of these nanovesicles, whose thickness was measured precisely by small angle neutron scattering (SANS). Spherical nano-assemblies with a high USPIO payload and a diameter close to 150 nm were obtained as confirmed by dynamic light scattering (DLS), transmission electron microscopy (TEM) and cryo-TEM. The vesicular structure of these hybrid nano-assemblies was confirmed by multi-angle light scattering (MALS) measurements. Their magnetic properties were evaluated by T1 and T2 measurements (20 and 60 MHz) and by nuclear magnetic relaxation dispersion (NMRD) profiles. The size of USPIO entrapped in the membranes of PEO-b-PCL vesicles has a strong impact on their magnetic properties. It affects both their longitudinal and their transverse relaxivities and thus their magnetic resonance imaging (MRI) sensitivity. Acid-catalyzed hydrolysis of the PCL membrane also influences their relaxivities as shown by measurements carried out at pH 7 vs. pH 5. This property was used to monitor the membrane hydrolytic degradation in vitro, as a proof of concept of potential monitoring of drug delivery by nanomedicines in vivo and non-invasively, by MRI.
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Affiliation(s)
- Adeline Hannecart
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium.
| | - Dimitri Stanicki
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium.
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium.
| | - Robert N Muller
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium. and Center for Microscopy and Molecular Imaging, 8 rue Adrienne Bolland, B-6041 Charleroi, Belgium
| | - Annie Brûlet
- Laboratoire Léon Brillouin, CNRS, CEA, Univ. Paris-Saclay, UMR12, F-91191 Gif sur Yvette, France
| | - Olivier Sandre
- Laboratoire de Chimie des Polymères Organiques, Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33607 Pessac, France
| | - Christophe Schatz
- Laboratoire de Chimie des Polymères Organiques, Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33607 Pessac, France
| | - Sébastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33607 Pessac, France
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau B-7000 Mons, Belgium. and Center for Microscopy and Molecular Imaging, 8 rue Adrienne Bolland, B-6041 Charleroi, Belgium
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Shrestha R, Teesdale-Spittle PH, Lewis AR, Rendle PM. Gadolinium Complexes Attached to Poly Ethoxy Ethyl Glycinamide (PEE-G) Dendrons: Magnetic Resonance Imaging Contrast Agents with Increased Relaxivity. Chempluschem 2020; 85:1881-1892. [PMID: 32845091 DOI: 10.1002/cplu.202000409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/01/2020] [Indexed: 12/16/2022]
Abstract
A range of poly ethoxy ethyl glycinamide (PEE-G) dendron scaffolds with gadolinium (III) complexes attached were synthesized with a focus on product purity and high Gd(III) loading. The nuclear magnetic resonance relaxivity of these products was measured and compared with commercially available low-molecular-weight magnetic resonance imaging contrast agents. Over twice the relaxivity based on Gd(III) concentration, and up to 20-fold increase in relaxivity were observed based on molecular concentration. Relaxivity properties were observed to increase with both increasing molecular weight and number of Gd(III) complexes attached, however a plateau was reached for molecular weight increase. T1 and T2 relaxivity properties were also investigated at two different magnetic fields. Transverse relaxivity is unaffected by magnetic field strength whereas increase in longitudinal relaxivity was not as pronounced at the higher field.
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Affiliation(s)
- Rinu Shrestha
- Victoria University of Wellington, PO Box 33 436, Petone, 5046, New Zealand
| | | | - Andrew R Lewis
- Victoria University of Wellington, PO Box 33 436, Petone, 5046, New Zealand.,Callaghan Innovation, PO Box 31 310, Lower Hutt, 5010, New Zealand
| | - Phillip M Rendle
- Victoria University of Wellington, PO Box 33 436, Petone, 5046, New Zealand
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Haribabu V, Girigoswami K, Sharmiladevi P, Girigoswami A. Water-Nanomaterial Interaction to Escalate Twin-Mode Magnetic Resonance Imaging. ACS Biomater Sci Eng 2020; 6:4377-4389. [PMID: 33455176 DOI: 10.1021/acsbiomaterials.0c00409] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular imaging has gained utmost importance in the recent past in early diagnosis of diseases. In comparison to other imaging modalities, magnetic resonance imaging (MRI) has proven to extend its abilities not only for its usage of non-ionizing radiation but also for the high spatial resolution in soft tissues. A major limitation faced by MRI is the sensitivity in detecting diseased conditions until a certain stage. At present, this limitation is overcome with the use of contrast agents that show potential in altering the T1 and T2 relaxation times of the hydrogen protons. This modulation to the relaxation times leads to better contrast differences based on the type of contrast agent and the pulse sequence being engaged for acquiring images. Water molecules, as the major contributor of hydrogen protons, are proven to interact with such contrast agents. Major drawbacks noted with the marketed MRI contrast agents are their toxicity and renal clearance. To conquer these issues, magnetic nanomaterials are being researched for their abilities to match the contrast enhancement offered by traditional agents reducing their drawbacks. Furthermore, comparative diagnosis with both T1 and T2 contrast at the same time has also interested investigators. To achieve this, twin mode T1 and T2 weighted contrast agents are developed utilizing the remarkable properties extended by magnetic nanoplatforms. As a step forward, multimodal imaging agents are also being engineered based on these magnetic nanoplatforms that will generate cross-verified diagnoses using multiple imaging modalities with a unique imaging agent. This review starts by introducing the basics of MRI with major focus on the typical interactions of water molecules with a variety of magnetic nanomaterials. The review also concentrates on the clinical needs and nanomaterials available for twin T1 and T2 contrast with a minor introduction to multimodal imaging agents. In conclusion, the advent of MRI with the advantages offered by magnetic nanomaterials is summarized, leading to insights for future developments.
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Affiliation(s)
- Viswanathan Haribabu
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital & Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Koyeli Girigoswami
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital & Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Palani Sharmiladevi
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital & Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Agnishwar Girigoswami
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital & Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603 103, India
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Ding N, Sano K, Kanazaki K, Shimizu Y, Watanabe H, Namita T, Shiina T, Ono M, Saji H. Sensitive Photoacoustic/Magnetic Resonance Dual Imaging Probe for Detection of Malignant Tumors. J Pharm Sci 2020; 109:3153-3159. [PMID: 32679213 DOI: 10.1016/j.xphs.2020.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/23/2020] [Accepted: 07/08/2020] [Indexed: 01/18/2023]
Abstract
In order to completely remove tumors in surgeries, probes are needed both preoperatively and intraoperatively. For tumor diagnosis, magnetic resonance imaging (MRI) has been widely used as a precise preoperative method, and photoacoustic imaging (PAI) is a recently emerged intraoperative (or preoperative) method, which detects ultrasonic waves thermoelastically induced by optical absorbers irradiated by laser. Iron oxide nanoparticles (IONPs) can be used as both MR and PA imaging probes. In order to improve the sensitivity of IONPs as MR/PA imaging probes, we newly prepared liposomes encapsulated with a number of IONPs (Lipo-IONPs). Interestingly, Lipo-IONPs showed 2.6 and 3.8-times higher PA and MR signals, respectively, compared to dispersed IONPs at the same concentration. Furthermore, trastuzumab (Tra) (anti-human epidermal growth factor receptor 2 (EGFR2; HER2) monoclonal antibody) was introduced onto the surface of liposomes for detection of HER2 related to tumor malignancy. In an cellular uptake study, Tra-Lipo-IONPs were taken up by HER2-positive tumor cells and HER2-specific MR/PA dual imaging was achieved. Finally, a biodistribution study using radiolabeled Tra-Lipo-IONPs showed HER2-specific tumor accumulation. In conclusion, we demonstrated the usefulness of Lipo-IONPs as platforms for sensitive MR/PA dual imaging and the possibility of HER2-specific tumor MR/PA imaging using Tra-Lipo-IONPs.
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Affiliation(s)
- Ning Ding
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kohei Sano
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan; Laboratory of Biophysical Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyama Kitamachi, Higashinada-ku, Kobe 658-8558, Japan.
| | - Kengo Kanazaki
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan; Medical Imaging Project, Corporate R&D Headquarters, Canon Inc., 3-30-2 Shimomaruko, Ohta-ku, Tokyo 146-8501, Japan
| | - Yoichi Shimizu
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroyuki Watanabe
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Takeshi Namita
- Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tsuyoshi Shiina
- Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Masahiro Ono
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hideo Saji
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
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Thi Kim Dung D, Umezawa M, Nigoghossian K, Yeroslavsky G, Okubo K, Kamimura M, Yamaguchi M, Fujii H, Soga K. Development of Molecular Imaging Probe for Dual NIR/MR Imaging. J PHOTOPOLYM SCI TEC 2020. [DOI: 10.2494/photopolymer.33.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Doan Thi Kim Dung
- Research Institute for Biomedical Science, Tokyo University of Science
- Division of Functional Imaging, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center
| | - Masakazu Umezawa
- Department of Material Science and Technology, Tokyo University of Science
| | | | | | - Kyohei Okubo
- Department of Material Science and Technology, Tokyo University of Science
- Imaging Frontier Center (IFC), Tokyo University of Science
| | - Masao Kamimura
- Department of Material Science and Technology, Tokyo University of Science
- Imaging Frontier Center (IFC), Tokyo University of Science
| | - Masayuki Yamaguchi
- Division of Functional Imaging, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center
| | - Hirofumi Fujii
- Division of Functional Imaging, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center
| | - Kohei Soga
- Research Institute for Biomedical Science, Tokyo University of Science
- Department of Material Science and Technology, Tokyo University of Science
- Imaging Frontier Center (IFC), Tokyo University of Science
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Avasthi A, Caro C, Pozo-Torres E, Leal MP, García-Martín ML. Magnetic Nanoparticles as MRI Contrast Agents. Top Curr Chem (Cham) 2020; 378:40. [PMID: 32382832 PMCID: PMC8203530 DOI: 10.1007/s41061-020-00302-w] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 03/18/2020] [Indexed: 12/14/2022]
Abstract
Iron oxide nanoparticles (IONPs) have emerged as a promising alternative to conventional contrast agents (CAs) for magnetic resonance imaging (MRI). They have been extensively investigated as CAs due to their high biocompatibility and excellent magnetic properties. Furthermore, the ease of functionalization of their surfaces with different types of ligands (antibodies, peptides, sugars, etc.) opens up the possibility of carrying out molecular MRI. Thus, IONPs functionalized with epithelial growth factor receptor antibodies, short peptides, like RGD, or aptamers, among others, have been proposed for the diagnosis of various types of cancer, including breast, stomach, colon, kidney, liver or brain cancer. In addition to cancer diagnosis, different types of IONPs have been developed for other applications, such as the detection of brain inflammation or the early diagnosis of thrombosis. This review addresses key aspects in the development of IONPs for MRI applications, namely, synthesis of the inorganic core, functionalization processes to make IONPs biocompatible and also to target them to specific tissues or cells, and finally in vivo studies in animal models, with special emphasis on tumor models.
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Affiliation(s)
- Ashish Avasthi
- BIONAND - Centro Andaluz de Nanomedicina y Biotecnología, Junta de Andalucía-Universidad de Málaga, C/Severo Ochoa, 35, 29590, Málaga, Spain
| | - Carlos Caro
- BIONAND - Centro Andaluz de Nanomedicina y Biotecnología, Junta de Andalucía-Universidad de Málaga, C/Severo Ochoa, 35, 29590, Málaga, Spain
| | - Esther Pozo-Torres
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012, Seville, Spain
| | - Manuel Pernia Leal
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012, Seville, Spain.
| | - María Luisa García-Martín
- BIONAND - Centro Andaluz de Nanomedicina y Biotecnología, Junta de Andalucía-Universidad de Málaga, C/Severo Ochoa, 35, 29590, Málaga, Spain. .,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Málaga, Spain.
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72
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High-performance hepatobiliary dysprosium contrast agent for ultra-high-field magnetic resonance imaging. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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73
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Barizon GC, Simões MV, Schmidt A, Gadioli LP, Murta Junior LO. Relationship between microvascular changes, autonomic denervation, and myocardial fibrosis in Chagas cardiomyopathy: Evaluation by MRI and SPECT imaging. J Nucl Cardiol 2020; 27:434-444. [PMID: 29696485 DOI: 10.1007/s12350-018-1290-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 04/16/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND The relationship between microvasculopathy, autonomic denervation, and myocardial fibrosis, in Chagas cardiomyopathy is incompletely understood. The aim of this study was to explore the relative extent and anatomic distribution of myocardial hypoperfusion, autonomic denervation, and myocardial scarring using Single-Photon Emission Computerized Tomography (SPECT) imaging and Magnetic Resonance Imaging (MRI). METHODS Thirteen patients with Chagas disease all had Iodine-123-metaiodobenzylguanidine (MIBG) SPECT, 99mTc-Sestamibi (MIBI) rest-stress SPECT, and gadolinium late enhancement MRI imaging within a 2-month interval. The anatomic location and extent of denervation, of stress-induced hypoperfusion and fibrosis, were assessed through image co-registration and quantification of abnormal tissue areas as a percent of total myocardium. RESULTS The results showed a strong general anatomic concordance between areas of hypoperfusion, denervation, and fibrosis, suggesting that the three abnormal features may be correlated. Myocardial denervation was anatomically and quantitatively closely associated areas of stress hypoperfusion. CONCLUSION Combined myocardial analysis of the extent and location of autonomic denervation, hypoperfusion, and scarring may allow for better understanding of the pathophysiology of Chagas cardiomyopathy. Autonomic myocardial denervation may be a more sensitive marker of cardiac involvement in Chagas Disease than finding by other imaging modalities.
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Affiliation(s)
- Gustavo Canavaci Barizon
- Department of Computing and Mathematics, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil.
| | - Marcus Vinicius Simões
- Division of Cardiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - André Schmidt
- Division of Cardiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Leonardo Pippa Gadioli
- Division of Cardiology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Luiz Otávio Murta Junior
- Department of Computing and Mathematics, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil
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Tripepi M, Ferrauto G, Bennardi PO, Aime S, Delli Castelli D. Multilamellar LipoCEST Agents Obtained from Osmotic Shrinkage of Paramagnetically Loaded Giant Unilamellar Vescicles (GUVs). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Martina Tripepi
- Department of Molecular Biotechnology and Health SciencesUniversity of Torino Via Nizza 52 10126 Torino Italy
| | - Giuseppe Ferrauto
- Department of Molecular Biotechnology and Health SciencesUniversity of Torino Via Nizza 52 10126 Torino Italy
| | - Paolo Oronzo Bennardi
- Department of Molecular Biotechnology and Health SciencesUniversity of Torino Via Nizza 52 10126 Torino Italy
| | - Silvio Aime
- Department of Molecular Biotechnology and Health SciencesUniversity of Torino Via Nizza 52 10126 Torino Italy
| | - Daniela Delli Castelli
- Department of Molecular Biotechnology and Health SciencesUniversity of Torino Via Nizza 52 10126 Torino Italy
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75
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Anaphylaxis Induced by Magnetic Resonance Imaging (MRI) Contrast Media. CURRENT TREATMENT OPTIONS IN ALLERGY 2020. [DOI: 10.1007/s40521-020-00239-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Silva F, Paulo A, Pallier A, Même S, Tóth É, Gano L, Marques F, Geraldes CF, Castro MMC, Cardoso AM, Jurado AS, López-Larrubia P, Lacerda S, Cabral Campello MP. Dual Imaging Gold Nanoplatforms for Targeted Radiotheranostics. MATERIALS 2020; 13:ma13030513. [PMID: 31978954 PMCID: PMC7040626 DOI: 10.3390/ma13030513] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/08/2020] [Accepted: 01/20/2020] [Indexed: 02/07/2023]
Abstract
Gold nanoparticles (AuNPs) are interesting for the design of new cancer theranostic tools, mainly due to their biocompatibility, easy molecular vectorization, and good biological half-life. Herein, we report a gold nanoparticle platform as a bimodal imaging probe, capable of coordinating Gd3+ for Magnetic Resonance Imaging (MRI) and 67Ga3+ for Single Photon Emission Computed Tomography (SPECT) imaging. Our AuNPs carry a bombesin analogue with affinity towards the gastrin releasing peptide receptor (GRPr), overexpressed in a variety of human cancer cells, namely PC3 prostate cancer cells. The potential of these multimodal imaging nanoconstructs was thoroughly investigated by the assessment of their magnetic properties, in vitro cellular uptake, biodistribution, and radiosensitisation assays. The relaxometric properties predict a potential T1- and T2- MRI application. The promising in vitro cellular uptake of 67Ga/Gd-based bombesin containing particles was confirmed through biodistribution studies in tumor bearing mice, indicating their integrity and ability to target the GRPr. Radiosensitization studies revealed the therapeutic potential of the nanoparticles. Moreover, the DOTA chelating unit moiety versatility gives a high theranostic potential through the coordination of other therapeutically interesting radiometals. Altogether, our nanoparticles are interesting nanomaterial for theranostic application and as bimodal T1- and T2- MRI / SPECT imaging probes.
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Affiliation(s)
- Francisco Silva
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - António Paulo
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
| | - Sandra Même
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
| | - Lurdes Gano
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
| | - Carlos F.G.C. Geraldes
- Department of Life Sciences, Faculty of Science and TechnologyUniversity of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal (A.S.J.)
- Coimbra Chemistry Center, University of Coimbra, 3004-535 Coimbra, Portugal
- CIBIT/ICNAS Instituto de Ciências Nucleares Aplicadas à Saúde. Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - M. Margarida C.A. Castro
- Department of Life Sciences, Faculty of Science and TechnologyUniversity of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal (A.S.J.)
- Coimbra Chemistry Center, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Ana M. Cardoso
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal;
- Institute for Interdisciplinary Research of the University of Coimbra, 3030-789 Coimbra, Portugal
| | - Amália S. Jurado
- Department of Life Sciences, Faculty of Science and TechnologyUniversity of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal (A.S.J.)
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal;
| | - Pilar López-Larrubia
- Instituto de Investigaciones Biomédicas “Alberto Sols” CSIC/UAM, c/ Arturo Duperier 4, 28029 Madrid, Spain;
| | - Sara Lacerda
- Centre de Biophysique Moléculaire, CNRS, UPR 4301, Université d’Orléans, Rue Charles Sadron, 45071 Orléans CEDEX 2, France; (A.P.); (S.M.)
- Correspondence: (M.P.C.C.); (S.L.)
| | - Maria Paula Cabral Campello
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (F.S.); (A.P.); (L.G.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal
- Correspondence: (M.P.C.C.); (S.L.)
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77
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Tripepi M, Ferrauto G, Bennardi PO, Aime S, Delli Castelli D. Multilamellar LipoCEST Agents Obtained from Osmotic Shrinkage of Paramagnetically Loaded Giant Unilamellar Vescicles (GUVs). Angew Chem Int Ed Engl 2020; 59:2279-2283. [PMID: 31803970 DOI: 10.1002/anie.201912327] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Indexed: 12/16/2022]
Abstract
Moving from nano- to micro-systems may not just be a matter of scale, but it might imply changes in the properties of the systems that can open new routes for the development of efficient MRI contrast agents. This is the case reported in the present paper, where giant liposomes (giant unilamellar vesicles, GUVs) loaded with LnIII complexes have been studied as chemical exchange saturation transfer (CEST) MRI contrast agents. The comparison between nanosized liposomes (small unilamellar vesicles, SUVs) and GUVs sharing the same formulation led to differences that could not be accounted for only in terms of the increase in size (from 100-150 nm to 1-2 μm). Upon osmotic shrinkage, GUVs yielded a saturation-transfer effect three order of magnitude higher than SUVs consistent with the increase in vesicles volume. Confocal microscopy showed that the shrinkage of GUVs resulted in multilamellar particles whereas SUVs are known to yield asymmetrical, discoidal shape.
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Affiliation(s)
- Martina Tripepi
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Giuseppe Ferrauto
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Paolo Oronzo Bennardi
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Silvio Aime
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Daniela Delli Castelli
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126, Torino, Italy
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78
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Biegger P, Ladd ME, Komljenovic D. Multifunctional Magnetic Resonance Imaging Probes. Recent Results Cancer Res 2020; 216:189-226. [PMID: 32594388 DOI: 10.1007/978-3-030-42618-7_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Magnetic resonance imaging is characterized by high spatial resolution and unsurpassed soft tissue discrimination. Development and characterization of both intrinsic and extrinsic magnetic resonance (MR) imaging probes in the last decade has further strengthened the pivotal role MR imaging holds in the assessment of cancer in preclinical and translational settings. Sophisticated chemical modifications of a variety of nanoparticulate probes hold the potential to deliver valuable multifunctional tools applicable in diagnostics and/or treatment in human oncology. MR imaging suffers from a lack of sensitivity achievable by, e.g., nuclear medicine imaging methods. Advantages of including additional functionality/functionalities in a probe suitable for MR imaging are thus numerous, comprising the addition of fundamentally different imaging information (diagnostics), drug delivery (therapy), or the combination of both (theranostics). In recent years, we have witnessed a plethora of preclinical multimodal or multifunctional imaging probes being published mainly as proof-of-principle studies, yet only a handful are readily applicable in clinical settings. This chapter summarizes recent innovations in the development of multifunctional MR imaging probes and discusses the suitability of these probes for clinical transfer.
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Affiliation(s)
- Philipp Biegger
- Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Mark E Ladd
- Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Faculty of Medicine, University of Heidelberg, Heidelberg, Germany.,Faculty of Physics and Astronomy, University of Heidelberg, Heidelberg, Germany
| | - Dorde Komljenovic
- Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
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79
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Connah L, Angelovski G. Solid phase synthesis in the development of magnetic resonance imaging probes. Org Chem Front 2020. [DOI: 10.1039/d0qo00921k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We review the use of the solid phase synthesis methodology for the preparation of diverse and potent MRI probes.
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Affiliation(s)
- Liam Connah
- MR Neuroimaging Agents
- Max Planck Institute for Biological Cybernetics
- Tuebingen
- Germany
| | - Goran Angelovski
- MR Neuroimaging Agents
- Max Planck Institute for Biological Cybernetics
- Tuebingen
- Germany
- Laboratory of Molecular and Cellular Neuroimaging
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80
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Mortezazadeh T, Gholibegloo E, Khoobi M, Alam NR, Haghgoo S, Mesbahi A. In vitro and in vivo characteristics of doxorubicin-loaded cyclodextrine-based polyester modified gadolinium oxide nanoparticles: a versatile targeted theranostic system for tumour chemotherapy and molecular resonance imaging. J Drug Target 2019; 28:533-546. [PMID: 31842616 DOI: 10.1080/1061186x.2019.1703188] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
β-Cyclodextrine-based polyester was coated on the surface of gadolinium oxide nanoparticles (NPs) and then functionalised with folic acid to produce an efficient pH-sensitive targeted theranostic system (Gd2O3@PCD-FA) for doxorubicin delivery and magnetic resonance imaging (MRI). Gd2O3@PCD-FA was fully characterised by FTIR, vibrating sample magnetometer, TGA, XRD, SEM and TEM analyses. The dissolution profile of DOX showed a pH sensitive release. No significant toxicity was observed for the targeted NPs (Gd2O3@PCD-FA) and DOX-loaded NPs inhibiting M109 cells viability more efficiently than free DOX. Moreover, the negligible hemolytic activity of the targeted NPs showed their appropriate hemocompatibility. The preferential uptake was observed for the developed Gd2O3@PCD-FA-DOX NPs in comparison with Dotarem using T1- and T2-weighted MRI in the presence of folate receptor-positive and folate receptor-negative cancer cells (M109 and 4T1, respectively). Furthermore, in vivo studies revealed that Gd2O3@PCD-FA-DOX not only exhibited considerably relaxivity performance as a contrast agent for MRI, but also improved in vivo anti-tumour efficacy of the system. The results suggest that Gd2O3@PCD-FA-DOX improves its therapeutic efficacy in the treatment of solid tumours and also reduces the adverse effects, so it could be proposed as a promising drug delivery system for chemotherapy and molecular imaging diagnosis in MRI.
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Affiliation(s)
- Tohid Mortezazadeh
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Gholibegloo
- Biomaterials Group, The Institute of Pharmaceutical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Khoobi
- Biomaterials Group, The Institute of Pharmaceutical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Nader Riyahi Alam
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical, Sciences, Tehran, Iran
| | - Soheila Haghgoo
- Pharmaceutical Department, Food and Drug Laboratory Research Center, Food and Drug Organization (FDO), Ministry of Health, Tehran, Iran
| | - Asghar Mesbahi
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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81
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Uğuz B, Ari S, Çamci S, Ari H. In vitro analysis of the effect of contrast agents on the antiaggregant effects of P2Y12 inhibitors. Thromb Res 2019; 183:91-97. [PMID: 31675507 DOI: 10.1016/j.thromres.2019.10.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 09/14/2019] [Accepted: 10/21/2019] [Indexed: 02/09/2023]
Abstract
OBJECTIVES The contrast agents have different molarities and ionic structures. The high osmolar contrast agents could increase platelet aggregation but the ionic contrast agents decrease platelet aggregation. However there is insufficient data on whether the antiaggregan effect of P2Y12 inhibitors used during coronary interventions are affected by the contrast agents. This study aimed to evaluate the in vitro effects of different contrast agents on the antiaggregant activity of P2Y12 inhibitors (clopidogrel, ticagrelor and prasugrel). MATERIALS AND METHODS Thirty patients (who underwent percutaneous coronary interventions and were treated with a P2Y12 inhibitor for a minimum of 10 days) and five healthy volunteers were divided into four groups: the clopidogrel (10 patients), ticagrelor (10 patients), prasugrel (10 patients) and control (five volunteers) groups. Antiaggregant activity was measured by using the Verify-Now method and was represented as P2Y12 reaction unit (PRU) values. Three tubes of blood were collected from the participants in the three patient groups and in the control group; as the contrast material, 10% iohexol was added to a second tube, and 10% iodixanol was added to a third tube. PRU values of the control and the contrast tubes were measured at 5 min and at 30 min after the contrast material was added. RESULTS Iohexol and iodixanol led to a significant decrease in the PRU values in the control group (iohexol: 188.4 ± 39.2 vs 142.4 ± 17.0, p = .04; iodixanol: 188.4 ± 39.2 vs 159.2 ± 33.7, p = .04) and in the clopidogrel group (iohexol: 140.8 ± 50.8 vs 106.3 ± 44.4, p = .04; iodixanol: 140.8 ± 50.8 vs 109.4 ± 47.6, p = .009) but not in the ticagrelor and prasugrel groups. The PRU values were significantly lower in the ticagrelor (23.1 ± 26.2) and prasugrel (23.4 ± 27.5) groups than in the clopidogrel (140.8 ± 50.8) and control (188.4 ± 39.2) groups (p < .01), and the PRU values for the ticagrelor and prasugrel groups were similar for both the 5-min and 30-min time periods (p > .05). The antiaggregant activities of iohexol and iodixanol were observed to be similar at the 5- and 30-minute time points for all of the groups (p > .05). CONCLUSION Iohexol and iodixanol had in vitro antiaggregant effects, and their antiaggregant effects were similar. Iohexol and iodixanol increased the clopidogrel antiaggregant activity in vitro, but they did not significantly alter the antiaggregant activities of prasugrel and ticagrelor.
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Affiliation(s)
- Berat Uğuz
- Bursa Postgraduate Hospital, Department of Cardiology, Bursa, Turkey
| | - Selma Ari
- Bursa Postgraduate Hospital, Department of Cardiology, Bursa, Turkey
| | - Sencer Çamci
- Bursa Postgraduate Hospital, Department of Cardiology, Bursa, Turkey
| | - Hasan Ari
- Bursa Postgraduate Hospital, Department of Cardiology, Bursa, Turkey.
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82
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Kuźnik N, Wyskocka M, Jarosz M, Oczek L, Goraus S, Komor R, Krawczyk T, Kempka M. Amino-phenol complexes of Fe(III) as promising T1 accelerators. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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83
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Bodnaruk AV, Kalita VM, Kulyk MM, Ryabchenko SM, Tovstolytkin AI, Solopan SO, Belous AG. Critical behavior of ensembles of superparamagnetic nanoparticles with dispersions of magnetic parameters. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:375801. [PMID: 31163402 DOI: 10.1088/1361-648x/ab26fa] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Different processes governing magnetic properties of an ensemble of magnetic nanoparticles in the temperature region close to a transition from superparamagnetic to paramagnetic state are analyzed and the ways to separate them are suggested. Enhanced role of paraprocess in magnetization behavior near Curie temperature is stressed. A procedure to isolate paraprocess contribution and adequately determine spontaneous magnetization of the ensemble of superparamagnetic nanoparticles is proposed. Critical behavior of the spontaneous magnetization is experimentally determined for the ensemble of nanoparticles of lanthanum-strontium manganites, which are considered as promising materials for self-controlled magnetic nanohyperthermia. Effect of dispersion of magnetic parameters on effective magnetic characteristics of nanoparticles and their critical behavior is discussed. Theoretical background for the use of the 'effective Curie temperature for the ensemble of nanoparticles' concept is proposed for ensembles of particles with dispersion of their Curie temperature. Based on the results obtained, various strategies to develop novel biomedical applications, in particular those suitable for noninvasive temperature monitoring, are discussed.
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Affiliation(s)
- A V Bodnaruk
- Institute of Physics of the NAS of Ukraine, 46 Nauky Ave., Kyiv 03028, Ukraine
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84
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Harris M, Biju S, Parac‐Vogt TN. High‐Field MRI Contrast Agents and their Synergy with Optical Imaging: the Evolution from Single Molecule Probes towards Nano‐architectures. Chemistry 2019; 25:13838-13847. [DOI: 10.1002/chem.201901141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/03/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Michael Harris
- Department of ChemistryKU Leuven Celestijnenlaan 200F Heverlee 3001 Belgium
| | - Silvanose Biju
- Department of ChemistryGovt. Arts College Thiruvananthapuram Kerala 695014 India
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85
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Marasini S, Yue H, Ho SL, Jung KH, Park JA, Cha H, Ghazanfari A, Ahmad MY, Liu S, Jang YJ, Miao X, Chae KS, Chang Y, Lee GH. d
-Glucuronic Acid-Coated Ultrasmall Paramagnetic Ln2
O3
(Ln = Tb, Dy, and Ho) Nanoparticles: Magnetic Properties, Water Proton Relaxivities, and Fluorescence Properties. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900378] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shanti Marasini
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Huan Yue
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Son Long Ho
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Ki-Hye Jung
- Division of RI-Convergence Research; Korea Institute of Radiological Medical Science; 01817 Seoul South Korea
| | - Ji Ae Park
- Division of RI-Convergence Research; Korea Institute of Radiological Medical Science; 01817 Seoul South Korea
| | - Hyunsil Cha
- Department of Molecular Medicine and Medical & Biological Engineering and DNN; School of Medicine, KNU and Hospital; 41566 Taegu South Korea
| | - Adibehalsadat Ghazanfari
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Mohammad Yaseen Ahmad
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Shuwen Liu
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Yeong Ji Jang
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Xu Miao
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Kwon-Seok Chae
- Department of Biology Education and; DNN, Teachers' College; Kyungpook National University (KNU); 41566 Taegu South Korea
| | - Yongmin Chang
- Department of Molecular Medicine and Medical & Biological Engineering and DNN; School of Medicine, KNU and Hospital; 41566 Taegu South Korea
| | - Gang Ho Lee
- Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN); College of Natural Sciences; Kyungpook National University (KNU); 41566 Taegu South Korea
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86
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Sanchez LM, Alvarez VA. Advances in Magnetic Noble Metal/Iron-Based Oxide Hybrid Nanoparticles as Biomedical Devices. Bioengineering (Basel) 2019; 6:bioengineering6030075. [PMID: 31466238 PMCID: PMC6784020 DOI: 10.3390/bioengineering6030075] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/22/2019] [Accepted: 08/26/2019] [Indexed: 12/17/2022] Open
Abstract
The study of the noble metal magnetic hybrid nanoparticles is a really promising topic from both the scientific and the technological points of views, with applications in several fields. Iron oxide materials which are hybridized with noble metal nanoparticles (NPs) have attracted increasing interest among researchers because of their cooperative effects on combined magnetic, electronic, photonic, and catalytic activities. This review article contains a summary of magnetic noble metal/iron oxide nanoparticle systems potentially useful in practical biomedical applications. Among the applications, engineered devices for both medical diagnosis and treatments were considered. The preparation to produce different structures, as blends or core-shell structures, of several nanometric systems was also considered. Several characterization techniques available to describe the structure, morphology and different kinds of properties of hybrid nanoparticles are also included in this review.
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Affiliation(s)
- Laura M Sanchez
- Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), CONICET-Universidad Nacional de Mar del Plata (UNMdP). Av. Colón 10850, Mar del Plata 7600, Argentina.
| | - Vera A Alvarez
- Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), CONICET-Universidad Nacional de Mar del Plata (UNMdP). Av. Colón 10850, Mar del Plata 7600, Argentina
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87
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Akakuru OU, Iqbal MZ, Saeed M, Liu C, Paunesku T, Woloschak G, Hosmane NS, Wu A. The Transition from Metal-Based to Metal-Free Contrast Agents for T1 Magnetic Resonance Imaging Enhancement. Bioconjug Chem 2019; 30:2264-2286. [PMID: 31380621 DOI: 10.1021/acs.bioconjchem.9b00499] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Magnetic resonance imaging (MRI) has received significant attention as the noninvasive diagnostic technique for complex diseases. Image-guided therapeutic strategy for diseases such as cancer has also been at the front line of biomedical research, thanks to the innovative MRI, enhanced by the prior delivery of contrast agents (CAs) into patients' bodies through injection. These CAs have contributed a great deal to the clinical utility of MRI but have been based on metal-containing compounds such as gadolinium, manganese, and iron oxide. Some of these CAs have led to cytotoxicities such as the incurable Nephrogenic Systemic Fibrosis (NSF), resulting in their removal from the market. On the other hand, CAs based on organic nitroxide radicals, by virtue of their structural composition, are metal free and without the aforementioned drawbacks. They also have improved biocompatibility, ease of functionalization, and long blood circulation times, and have been proven to offer tissue contrast enhancement with longitudinal relaxivities comparable with those for the metal-containing CAs. Thus, this Review highlights the recent progress in metal-based CAs and their shortcomings. In addition, the remarkable goals achieved by the organic nitroxide radical CAs in the enhancement of MR images have also been discussed extensively. The focal point of this Review is to emphasize or demonstrate the crucial need for transition into the use of organic nitroxide radicals-metal-free CAs-as against the metal-containing CAs, with the aim of achieving safer application of MRI for early disease diagnosis and image-guided therapy.
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Affiliation(s)
- Ozioma Udochukwu Akakuru
- Cixi Institute of Biomedical Engineering, CAS Key Laboratory of Magnetic Materials and Devices, & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , P.R. China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , P.R. China
| | - M Zubair Iqbal
- Cixi Institute of Biomedical Engineering, CAS Key Laboratory of Magnetic Materials and Devices, & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , P.R. China.,Department of Materials Engineering, College of Materials and Textiles , Zhejiang Sci-Tech University , No. 2 Road of Xiasha , Hangzhou 310018 , P.R. China
| | - Madiha Saeed
- Cixi Institute of Biomedical Engineering, CAS Key Laboratory of Magnetic Materials and Devices, & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , P.R. China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , P.R. China
| | - Chuang Liu
- Cixi Institute of Biomedical Engineering, CAS Key Laboratory of Magnetic Materials and Devices, & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , P.R. China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District, Beijing 100049 , P.R. China
| | - Tatjana Paunesku
- Department of Radiation Oncology , Northwestern University , Chicago , Illinois 60611 , United States
| | - Gayle Woloschak
- Department of Radiation Oncology , Northwestern University , Chicago , Illinois 60611 , United States
| | - Narayan S Hosmane
- Department of Chemistry and Biochemistry , Northern Illinois University , DeKalb , Illinois 60115 , United States
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, CAS Key Laboratory of Magnetic Materials and Devices, & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , P.R. China
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88
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Rabel M, Warncke P, Grüttner C, Bergemann C, Kurland HD, Müller R, Dugandžić V, Thamm J, Müller FA, Popp J, Cialla-May D, Fischer D. Simulation of the long-term fate of superparamagnetic iron oxide-based nanoparticles using simulated biological fluids. Nanomedicine (Lond) 2019; 14:1681-1706. [DOI: 10.2217/nnm-2018-0382] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To simulate the stability and degradation of superparamagnetic iron oxide nanoparticles (MNP) in vitro as part of their life cycle using complex simulated biological fluids. Materials & methods: A set of 13 MNP with different polymeric or inorganic shell materials was synthesized and characterized regarding stability and degradation of core and shell in simulated biological fluids. Results: All MNP formulations showed excellent stability during storage and in simulated body fluid. In endosomal/lysosomal media the degradation behavior depended on shell characteristics (e.g., charge, acid-base character) and temperature enabling the development of an accelerated stress test protocol. Conclusion: Kinetics of transformations depending on the MNP type could be established to define structure-activity relationships as prediction model for rational particle design.
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Affiliation(s)
- Martin Rabel
- Pharmaceutical Technology & Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Paul Warncke
- Pharmaceutical Technology & Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Cordula Grüttner
- Micromod Partikeltechnologie GmbH, Friedrich-Barnewitz-Straße 4, 18119 Rostock, Germany
| | | | - Heinz-Dieter Kurland
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany
| | - Robert Müller
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Vera Dugandžić
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Jana Thamm
- Pharmaceutical Technology & Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Frank A. Müller
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Dana Cialla-May
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Dagmar Fischer
- Pharmaceutical Technology & Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
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89
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Liu L, Alizadeh K, Donnelly SC, Dassanayake P, Hou TT, McGirr R, Thompson RT, Prato FS, Gelman N, Hoffman L, Goldhawk DE. MagA expression attenuates iron export activity in undifferentiated multipotent P19 cells. PLoS One 2019; 14:e0217842. [PMID: 31170273 PMCID: PMC6553743 DOI: 10.1371/journal.pone.0217842] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/20/2019] [Indexed: 12/21/2022] Open
Abstract
Magnetic resonance imaging (MRI) is a non-invasive imaging modality used in longitudinal cell tracking. Previous studies suggest that MagA, a putative iron transport protein from magnetotactic bacteria, is a useful gene-based magnetic resonance contrast agent. Hemagglutinin-tagged MagA was stably expressed in undifferentiated embryonic mouse teratocarcinoma, multipotent P19 cells to provide a suitable model for tracking these cells during differentiation. Western blot and immunocytochemistry confirmed the expression and membrane localization of MagA in P19 cells. Surprisingly, elemental iron analysis using inductively-coupled plasma mass spectrometry revealed significant iron uptake in both parental and MagA-expressing P19 cells, cultured in the presence of iron-supplemented medium. Withdrawal of this extracellular iron supplement revealed unexpected iron export activity in P19 cells, which MagA expression attenuated. The influence of iron supplementation on parental and MagA-expressing cells was not reflected by longitudinal relaxation rates. Measurement of transverse relaxation rates (R2* and R2) reflected changes in total cellular iron content but did not clearly distinguish MagA-expressing cells from the parental cell type, despite significant differences in the uptake and retention of total cellular iron. Unlike other cell types, the reversible component R2′ (R2* ‒ R2) provided only a moderately strong correlation to amount of cellular iron, normalized to amount of protein. This is the first report to characterize MagA expression in a previously unrecognized iron exporting cell type. The interplay between contrast gene expression and systemic iron metabolism substantiates the potential for diverting cellular iron toward the formation of a novel iron compartment, however rudimentary when using a single magnetotactic bacterial gene expression system like magA. Since relatively few mammalian cells export iron, the P19 cell line provides a tractable model of ferroportin activity, suitable for magnetic resonance analysis of key iron-handling activities and their influence on gene-based MRI contrast.
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Affiliation(s)
- Linshan Liu
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
| | - Kobra Alizadeh
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
| | - Sarah C. Donnelly
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
- Microbiology and Immunology, Western University, London, Ontario, Canada
| | - Praveen Dassanayake
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
| | - Tian Tian Hou
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
| | - Rebecca McGirr
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
| | - R. Terry Thompson
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Medical Imaging, Western University, London, Ontario, Canada
- Physics and Astronomy, Western University, London, Ontario, Canada
| | - Frank S. Prato
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
- Medical Imaging, Western University, London, Ontario, Canada
- Physics and Astronomy, Western University, London, Ontario, Canada
| | - Neil Gelman
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Medical Imaging, Western University, London, Ontario, Canada
| | - Lisa Hoffman
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
- Anatomy and Cell Biology, Western University, London, Ontario, Canada
| | - Donna E. Goldhawk
- Imaging, Lawson Health Research Institute, London, Ontario, Canada
- Medical Biophysics, Western University, London, Ontario, Canada
- Collaborative Graduate Program in Molecular Imaging, Western University, London, Ontario, Canada
- * E-mail:
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90
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Scepaniak JJ, Kang EB, John M, Kaminsky W, Dechert S, Meyer F. Non‐Macrocyclic Schiff Base Complexes of Iron(II) as ParaCEST Agents for MRI. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jeremiah J. Scepaniak
- Institut für Anorganische Chemie Georg‐August‐Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
- Department of Chemistry Drexel University 32 S. 32nd St. Disque Hall 506 19104 Philadelphia PA USA
| | - Eun Byoung Kang
- Department of Chemistry Drexel University 32 S. 32nd St. Disque Hall 506 19104 Philadelphia PA USA
| | - Michael John
- Institut für Anorganische Chemie Georg‐August‐Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| | - Werner Kaminsky
- Department of Chemistry University of Washington Box 351700 98195‐1700 Seattle WA USA
| | - Sebastian Dechert
- Institut für Anorganische Chemie Georg‐August‐Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| | - Franc Meyer
- Institut für Anorganische Chemie Georg‐August‐Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
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91
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Hobson NJ, Weng X, Siow B, Veiga C, Ashford M, Thanh NT, Schätzlein AG, Uchegbu IF. Clustering superparamagnetic iron oxide nanoparticles produces organ-targeted high-contrast magnetic resonance images. Nanomedicine (Lond) 2019; 14:1135-1152. [PMID: 31050589 DOI: 10.2217/nnm-2018-0370] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Aim: Superparamagnetic iron oxide nanoparticles (SPIONs) have been used as magnetic resonance imaging (MRI) contrast agents; however, a number of T2-weighted imaging SPIONs have been withdrawn due to their poor clinical contrast performance. Our aim was to significantly improve SPION T2-weighted MRI contrast by clustering SPIONs within novel chitosan amphiphiles. Methods: Clustering SPIONs was achieved by encapsulation of hydrophobic-coated SPIONs with an amphiphilic chitosan polymer (GCPQ). Results: Clustering increases the spin-spin (r2) to spin-lattice (r1) relaxation ratio (r2/r1) from 3.0 to 79.1, resulting in superior contrast. Intravenously administered clustered SPIONs accumulated only in the liver and spleen; with the reduction in T2 relaxation confined, in the liver, to the extravascular space, giving clear MRI images of the liver vasculature.
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Affiliation(s)
- Nicholas J Hobson
- UCL School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX London.,UCL Healthcare Biomagnetic & Nanomaterials Laboratories, 21 Albemarle Street, W1S 4BS London
| | - Xian Weng
- UCL School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX London.,UCL Healthcare Biomagnetic & Nanomaterials Laboratories, 21 Albemarle Street, W1S 4BS London
| | - Bernard Siow
- Centre for Advanced Biomedical Imaging, UCL, Gower Street, WC1E 6BT London
| | - Catarina Veiga
- UCL Medical Physics & Biomedical Engineering, Malet Place, Gower Street, WC1E 6BT London
| | - Marianne Ashford
- Advanced Drug Delivery, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Macclesfield, SK10 2NA Cheshire
| | - Nguyen Tk Thanh
- UCL Healthcare Biomagnetic & Nanomaterials Laboratories, 21 Albemarle Street, W1S 4BS London.,Biophysics Group, UCL, Gower Street, WC1E 6BT London
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92
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Fu C, Duan X, Cao M, Jiang S, Ban X, Guo N, Zhang F, Mao J, Huyan T, Shen J, Zhang LM. Targeted Magnetic Resonance Imaging and Modulation of Hypoxia with Multifunctional Hyaluronic Acid-MnO 2 Nanoparticles in Glioma. Adv Healthc Mater 2019; 8:e1900047. [PMID: 30920772 DOI: 10.1002/adhm.201900047] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/21/2019] [Indexed: 12/31/2022]
Abstract
Manganese dioxide (MnO2 )-based nanoparticles are a promising tumor microenvironment-responsive nanotheranostic carrier for targeted magnetic resonance imaging (MRI) and for alleviating tumor hypoxia. However, the complexity and potential toxicity of the present common synthesis methods limit their clinical application. Herein, multifunctional hyaluronic acid-MnO2 nanoparticles (HA-MnO2 NPs) are synthesized in a simple way by directly mixing sodium permanganate with HA aqueous solutions, which serve as both a reducing agent and a surface-coating material. The obtained HA-MnO2 NPs show an improved water-dispersibility, fine colloidal stability, low toxicity, and responsiveness to the tumor microenvironment (high H2 O2 and high glutathione, low pH). After intravenous injection, HA-MnO2 NPs exhibit a high imaging sensitivity for detecting rat intracranial glioma with MRI for a prolonged period of up to 3 d. These nanoparticles also effectively alleviate the tumor hypoxia in a rat model of intracranial glioma. The downregulation of VEGF and HIF-1α expression in intracranial glioma validates the sustained attenuation effect of HA-MnO2 NPs on tumor hypoxia. These results show that HA-MnO2 NPs can be used for sensitive, targeted MRI detection of gliomas and simultaneous attenuation of tumor hypoxia.
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Affiliation(s)
- Chaoping Fu
- Institute of Biomaterials and Tissue Engineering College of Materials Science and EngineeringHuaqiao University Xiamen 361021 China
- PCFM Lab and GDHPPC LabSchool of Materials Science and EngineeringSun Yat‐sen University Guangzhou 510275 China
| | - Xiaohui Duan
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Minghui Cao
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Shuqi Jiang
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Xiaohua Ban
- Department of RadiologySun Yat‐sen University Cancer CentreSun Yat‐sen University Guangzhou 510060 China
| | - Na Guo
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Fang Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Jiaji Mao
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Ting Huyan
- Advanced Pharmaceutics and Drug Delivery LaboratoryLeslie Dan Faculty of PharmacyUniversity of Toronto Ontario M5S 3M2 Canada
| | - Jun Shen
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene RegulationDepartment of RadiologySun Yat‐Sen Memorial HospitalSun Yat‐sen University Guangzhou 510120 China
| | - Li Ming Zhang
- PCFM Lab and GDHPPC LabSchool of Materials Science and EngineeringSun Yat‐sen University Guangzhou 510275 China
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93
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Biomedical Imaging: Principles, Technologies, Clinical Aspects, Contrast Agents, Limitations and Future Trends in Nanomedicines. Pharm Res 2019; 36:78. [PMID: 30945009 DOI: 10.1007/s11095-019-2608-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/11/2019] [Indexed: 12/11/2022]
Abstract
This review article presents the state-of-the-art in the major imaging modalities supplying relevant information on patient health by real-time monitoring to establish an accurate diagnosis and potential treatment plan. We draw a comprehensive comparison between all imagers and ultimately end with our focus on two main types of scanners: X-ray CT and MRI scanners. Numerous types of imaging probes for both imaging techniques are described, as well as reviewing their strengths and limitations, thereby showing the current need for the development of new diagnostic contrast agents (CAs). The role of nanoparticles in the design of CAs is then extensively detailed, reviewed and discussed. We show how nanoparticulate agents should be promising alternatives to molecular ones and how they are already paving new routes in the field of nanomedicine.
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94
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Mehri-Kakavand G, Hasanzadeh H, Jahanbakhsh R, Abdollahi M, Nasr R, Bitarafan-Rajabi A, Jadidi M, Darbandi-Azar A, Emadi A. Gd n 3+@CNTs-PEG versus Gadovist®: In Vitro Assay. Oman Med J 2019; 34:147-155. [PMID: 30918609 PMCID: PMC6425045 DOI: 10.5001/omj.2019.27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Objectives Carbon nanotubes (CNTs) are allotropes of carbon with a length-to-diameter ratio greater than 106 with the potential uses as medical diagnostic or therapeutic agents. In vitro studies have revealed that gadolinium (Gd) nanoparticle-catalyzed single-walled carbon nanotubes (SWCNTs) possess superparamagnetic properties, which enable them to be used as contrast agents in magnetic resonance imaging (MRI). Our study synthesized Gd-CNT for use as MRI contrast agents. Methods To reduce the toxicity and solubility of CNTs, it was functionalized, and after loading with Gd was coated with polyethylene glycols (PEG). We then synthesized different concentrations of Gdn3+@CNTs-PEG and Gadovist® to be evaluated as MRI contrast agents. Results The analysis showed that the Gd concentration in Gadovist® was 12.18% higher than synthesized Gdn3+@CNTs-PEG, but the mean signal intensity of the Gdn3+@CNTs-PEG was approximately 3.3% times higher than Gadovist®. Conclusions Our findings indicate that synthesized Gdn3+@CNTs-PEG has the potential to be used as an MRI contrast agent in vitro, but in vivo assessment is necessary to determine the bio-distribution, kinetic, and signal enhancement characteristics.
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Affiliation(s)
| | - Hadi Hasanzadeh
- Cancer Research Center and Department of Medical Physics, Semnan University of Medical Sciences, Semnan, Iran
| | - Rouzbeh Jahanbakhsh
- Arak Zist Darou Co, Health Technology Incubator Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Maryam Abdollahi
- Department of Medical Physics, Semnan University of Medical Sciences, Semnan, Iran
| | - Reza Nasr
- Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Ahmad Bitarafan-Rajabi
- Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Jadidi
- Department of Medical Physics, Semnan University of Medical Sciences, Semnan, Iran
| | - Amir Darbandi-Azar
- Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Emadi
- Deputy of Research and Technology, Semnan University of Medical Sciences, Semnan, Iran
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95
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Pereira MIA, Pereira G, Monteiro CAP, Geraldes CFGC, Cabral Filho PE, Cesar CL, de Thomaz AA, Santos BS, Pereira GAL, Fontes A. Hydrophilic Quantum Dots Functionalized with Gd(III)-DO3A Monoamide Chelates as Bright and Effective T 1-weighted Bimodal Nanoprobes. Sci Rep 2019; 9:2341. [PMID: 30787475 PMCID: PMC6382838 DOI: 10.1038/s41598-019-38772-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/09/2019] [Indexed: 12/29/2022] Open
Abstract
Magnetic resonance imaging (MRI) is a powerful non-invasive diagnostic tool that enables distinguishing healthy from pathological tissues, with high anatomical detail. Nevertheless, MRI is quite limited in the investigation of molecular/cellular biochemical events, which can be reached by fluorescence-based techniques. Thus, we developed bimodal nanosystems consisting in hydrophilic quantum dots (QDs) directly conjugated to Gd(III)-DO3A monoamide chelates, a Gd(III)-DOTA derivative, allowing for the combination of the advantages of both MRI and fluorescence-based tools. These nanoparticulate systems can also improve MRI contrast, by increasing the local concentration of paramagnetic chelates. Transmetallation assays, optical characterization, and relaxometric analyses, showed that the developed bimodal nanoprobes have great chemical stability, bright fluorescence, and high relaxivities. Moreover, fluorescence correlation spectroscopy (FCS) analysis allowed us to distinguish nanosystems containing different amounts of chelates/QD. Also, inductively coupled plasma optical emission spectrometry (ICP - OES) indicated a conjugation yield higher than 75%. Our nanosystems showed effective longitudinal relaxivities per QD and per paramagnetic ion, at least 5 times [per Gd(III)] and 100 times (per QD) higher than the r1 for Gd(III)-DOTA chelates, suitable for T1-weighted imaging. Additionally, the bimodal nanoparticles presented negligible cytotoxicity, and efficiently labeled HeLa cells as shown by fluorescence. Thus, the developed nanosystems show potential as strategic probes for fluorescence analyses and MRI, being useful for investigating a variety of biological processes.
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Affiliation(s)
- Maria I A Pereira
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Goreti Pereira
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Camila A P Monteiro
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Carlos F G C Geraldes
- Departamento de Ciências da Vida, Faculdade de Ciência e Tecnologia, Universidade de Coimbra, Coimbra, Portugal
- Centro de Química de Coimbra, Universidade de Coimbra, Coimbra, Portugal
| | - Paulo E Cabral Filho
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Carlos L Cesar
- Departamento de Física, Universidade Federal do Ceará, Fortaleza, CE, Brazil
- Departamento de Eletrônica Quântica, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - André A de Thomaz
- Departamento de Eletrônica Quântica, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Beate S Santos
- Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Giovannia A L Pereira
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil.
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil.
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96
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Amirav L, Berlin S, Olszakier S, Pahari SK, Kahn I. Multi-Modal Nano Particle Labeling of Neurons. Front Neurosci 2019; 13:12. [PMID: 30778281 PMCID: PMC6369355 DOI: 10.3389/fnins.2019.00012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 01/08/2019] [Indexed: 01/06/2023] Open
Abstract
The development of imaging methodologies for single cell measurements over extended timescales of up to weeks, in the intact animal, will depend on signal strength, stability, validity and specificity of labeling. Whereas light-microscopy can achieve these with genetically-encoded probes or dyes, this modality does not allow mesoscale imaging of entire intact tissues. Non-invasive imaging techniques, such as magnetic resonance imaging (MRI), outperform light microscopy in field of view and depth of imaging, but do not offer cellular resolution and specificity, suffer from low signal-to-noise ratio and, in some instances, low temporal resolution. In addition, the origins of the signals measured by MRI are either indirect to the process of interest or hard to validate. It is therefore highly warranted to find means to enhance MRI signals to allow increases in resolution and cellular-specificity. To this end, cell-selective bi-functional magneto-fluorescent contrast agents can provide an elegant solution. Fluorescence provides means for identification of labeled cells and particles location after MRI acquisition, and it can be used to facilitate the design of cell-selective labeling of defined targets. Here we briefly review recent available designs of magneto-fluorescent markers and elaborate on key differences between them with respect to durability and relevant cellular highlighting approaches. We further focus on the potential of intracellular labeling and basic functional sensing MRI, with assays that enable imaging cells at microscopic and mesoscopic scales. Finally, we illustrate the qualities and limitations of the available imaging markers and discuss prospects for in vivo neural imaging and large-scale brain mapping.
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Affiliation(s)
- Lilac Amirav
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel
| | - Shai Berlin
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Shunit Olszakier
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel.,Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Sandip K Pahari
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel
| | - Itamar Kahn
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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97
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Wahsner J, Gale EM, Rodríguez-Rodríguez A, Caravan P. Chemistry of MRI Contrast Agents: Current Challenges and New Frontiers. Chem Rev 2019; 119:957-1057. [PMID: 30350585 PMCID: PMC6516866 DOI: 10.1021/acs.chemrev.8b00363] [Citation(s) in RCA: 832] [Impact Index Per Article: 166.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Tens of millions of contrast-enhanced magnetic resonance imaging (MRI) exams are performed annually around the world. The contrast agents, which improve diagnostic accuracy, are almost exclusively small, hydrophilic gadolinium(III) based chelates. In recent years concerns have arisen surrounding the long-term safety of these compounds, and this has spurred research into alternatives. There has also been a push to develop new molecularly targeted contrast agents or agents that can sense pathological changes in the local environment. This comprehensive review describes the state of the art of clinically approved contrast agents, their mechanism of action, and factors influencing their safety. From there we describe different mechanisms of generating MR image contrast such as relaxation, chemical exchange saturation transfer, and direct detection and the types of molecules that are effective for these purposes. Next we describe efforts to make safer contrast agents either by increasing relaxivity, increasing resistance to metal ion release, or by moving to gadolinium(III)-free alternatives. Finally we survey approaches to make contrast agents more specific for pathology either by direct biochemical targeting or by the design of responsive or activatable contrast agents.
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Affiliation(s)
- Jessica Wahsner
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Eric M. Gale
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Aurora Rodríguez-Rodríguez
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Peter Caravan
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
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98
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Travagin F, Lattuada L, Giovenzana GB. First synthesis of orthogonally 1,7-diprotected cyclens. Org Chem Front 2019. [DOI: 10.1039/c9qo00184k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Six novel orthogonally 1,7-heterodiprotected cyclen derivatives have been prepared through an efficient and chromatography-free procedure.
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Affiliation(s)
- Fabio Travagin
- Bracco Imaging S.p.A
- Bracco Research Centre
- I-10100 Colleretto Giacosa (TO)
- Italy
- Dipartimento di Scienze del Farmaco
| | - Luciano Lattuada
- Bracco Imaging S.p.A
- Bracco Research Centre
- I-10100 Colleretto Giacosa (TO)
- Italy
| | - Giovanni B. Giovenzana
- Dipartimento di Scienze del Farmaco
- Università del Piemonte Orientale “A. Avogadro”
- I-28100 Novara
- Italy
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99
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Zu G, Cao Y, Dong J, Zhou Q, van Rijn P, Liu M, Pei R. Development of an Aptamer-Conjugated Polyrotaxane-Based Biodegradable Magnetic Resonance Contrast Agent for Tumor-Targeted Imaging. ACS APPLIED BIO MATERIALS 2018; 2:406-416. [DOI: 10.1021/acsabm.8b00639] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Guangyue Zu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Department of Biomedical Engineering, W. J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Yi Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jingjin Dong
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Qihui Zhou
- Department of Biomedical Engineering, W. J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Patrick van Rijn
- Department of Biomedical Engineering, W. J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, A. Deusinglaan 1, Groningen 9713 AV, The Netherlands
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Min Liu
- Institute for Interdisciplinary Research, Jianghan University, Wuhan 430056, China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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100
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Kruk D, Masiewicz E, Umut E, Schlögl M, Fischer R, Scharfetter H. Quadrupole relaxation enhancement and polarisation transfer in DMSO solution of [Bi(NO3)3(H2O)3]*18-crown-6 in solid state. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1552798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Danuta Kruk
- Faculty of Mathematics and Computer Science, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Elzbieta Masiewicz
- Faculty of Mathematics and Computer Science, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Evrim Umut
- Faculty of Mathematics and Computer Science, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Martin Schlögl
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria
| | - Roland Fischer
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria
| | - Hermann Scharfetter
- Institute of Medical Engineering, Graz University of Technology, Graz, Austria
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