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Baroni S, Stefania R, Broche LM, Senn N, Lurie DJ, Ross PJ, Aime S, Geninatti Crich S. A Novel Class of
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H‐MRI Contrast Agents Based on the Relaxation Enhancement Induced on Water Protons by
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N‐Containing Imidazole Moieties. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Simona Baroni
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
| | - Rachele Stefania
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
| | - Lionel M. Broche
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - Nicholas Senn
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - David J. Lurie
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - P. James Ross
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - Silvio Aime
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
- Istituto di Biostrutture e Bioimmagini (IBB) CNR via Nizza 52 10126 Torino Italy
| | - Simonetta Geninatti Crich
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
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Zhang Q, Dai X, Zhang H, Zeng Y, Luo K, Li W. Recent advances in development of nanomedicines for multiple sclerosis diagnosis. Biomed Mater 2021; 16:024101. [PMID: 33472182 DOI: 10.1088/1748-605x/abddf4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Multiple sclerosis (MS) is a neurodegenerative disease with a high morbidity and disease burden. It is characterized by the loss of the myelin sheath, resulting in the disruption of neuron electrical signal transmissions and sensory and motor ability deficits. The diagnosis of MS is crucial to its management, but the diagnostic sensitivity and specificity are always a challenge. To overcome this challenge, nanomedicines have recently been employed to aid the diagnosis of MS with an improved diagnostic efficacy. Advances in nanomedicine-based contrast agents in magnetic resonance imaging scanning of MS lesions, and nanomedicine-derived sensors for detecting biomarkers in the cerebrospinal fluid biopsy, or analyzing the composition of exhaled breath gas, have demonstrated the potential of using nanomedicines in the accurate diagnosis of MS. This review aims to provide an overview of recent advances in the application of nanomedicines for the diagnosis of MS and concludes with perspectives of using nanomedicines for the development of safe and effective MS diagnostic nanotools.
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Affiliation(s)
- Qin Zhang
- Department of Radiology, Department of Postgraduate Students, and Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China. West China School of Medicine, Sichuan University, Chengdu 610041, People's Republic of China. These authors contributed equally to this work
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Di Gregorio E, Bitonto V, Baroni S, Stefania R, Aime S, Broche LM, Senn N, Ross PJ, Lurie DJ, Geninatti Crich S. Monitoring tissue implants by field-cycling 1H-MRI via the detection of changes in the 14N-quadrupolar-peak from imidazole moieties incorporated in a "smart" scaffold material. J Mater Chem B 2021; 9:4863-4872. [PMID: 34095943 DOI: 10.1039/d1tb00775k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study is focused on the development of innovative sensors to non-invasively monitor the tissue implant status by Fast-Field-Cycling Magnetic Resonance Imaging (FFC-MRI). These sensors are based on oligo-histidine moieties that are conjugated to PLGA polymers representing the structural matrix for cells hosting scaffolds. The presence of 14N atoms of histidine causes a quadrupolar relaxation enhancement (also called Quadrupolar Peak, QP) at 1.39 MHz. This QP falls at a frequency well distinct from the QPs generated by endogenous semisolid proteins. The relaxation enhancement is pH dependent in the range 6.5-7.5, thus it acts as a reporter of the scaffold integrity as it progressively degrades upon lowering the microenvironmental pH. The ability of this new sensors to generate contrast in an image obtained at 1.39 MHz on a FFC-MRI scanner is assessed. A good biocompatibility of the histidine-containing scaffolds is observed after its surgical implantation in healthy mice. Over time the scaffold is colonized by endogenous fibroblasts and this process is accompanied by a progressive decrease of the intensity of the relaxation peak. In respect to the clinically used contrast agents this material has the advantage of generating contrast without the use of potentially toxic paramagnetic metal ions.
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Affiliation(s)
- Enza Di Gregorio
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy.
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4
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Baroni S, Stefania R, Broche LM, Senn N, Lurie DJ, Ross PJ, Aime S, Geninatti Crich S. A Novel Class of
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H‐MRI Contrast Agents Based on the Relaxation Enhancement Induced on Water Protons by
14
N‐Containing Imidazole Moieties. Angew Chem Int Ed Engl 2020; 60:4208-4214. [DOI: 10.1002/anie.202011513] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/14/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Simona Baroni
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
| | - Rachele Stefania
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
| | - Lionel M. Broche
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - Nicholas Senn
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - David J. Lurie
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - P. James Ross
- Aberdeen Biomedical Imaging Centre University of Aberdeen Foresterhill AB25 2ZD Aberdeen UK
| | - Silvio Aime
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
- Istituto di Biostrutture e Bioimmagini (IBB) CNR via Nizza 52 10126 Torino Italy
| | - Simonetta Geninatti Crich
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 10126 Torino Italy
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Aziz A, Pane S, Iacovacci V, Koukourakis N, Czarske J, Menciassi A, Medina-Sánchez M, Schmidt OG. Medical Imaging of Microrobots: Toward In Vivo Applications. ACS NANO 2020; 14:10865-10893. [PMID: 32869971 DOI: 10.1021/acsnano.0c05530] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Medical microrobots (MRs) have been demonstrated for a variety of non-invasive biomedical applications, such as tissue engineering, drug delivery, and assisted fertilization, among others. However, most of these demonstrations have been carried out in in vitro settings and under optical microscopy, being significantly different from the clinical practice. Thus, medical imaging techniques are required for localizing and tracking such tiny therapeutic machines when used in medical-relevant applications. This review aims at analyzing the state of the art of microrobots imaging by critically discussing the potentialities and limitations of the techniques employed in this field. Moreover, the physics and the working principle behind each analyzed imaging strategy, the spatiotemporal resolution, and the penetration depth are thoroughly discussed. The paper deals with the suitability of each imaging technique for tracking single or swarms of MRs and discusses the scenarios where contrast or imaging agent's inclusion is required, either to absorb, emit, or reflect a determined physical signal detected by an external system. Finally, the review highlights the existing challenges and perspective solutions which could be promising for future in vivo applications.
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Affiliation(s)
- Azaam Aziz
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Stefano Pane
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pisa 56025, Italy
- Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy
| | - Veronica Iacovacci
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pisa 56025, Italy
- Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy
| | - Nektarios Koukourakis
- Chair of Measurement and Sensor System Technique, School of Engineering, TU Dresden, Helmholtzstrasse 18, 01069 Dresden, Germany
- Center for Biomedical Computational Laser Systems, TU Dresden, 01062 Dresden, Germany
| | - Jürgen Czarske
- Chair of Measurement and Sensor System Technique, School of Engineering, TU Dresden, Helmholtzstrasse 18, 01069 Dresden, Germany
- Cluster of Excellence Physics of Life, TU Dresden, 01307 Dresden, Germany
- Center for Biomedical Computational Laser Systems, TU Dresden, 01062 Dresden, Germany
| | - Arianna Menciassi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pisa 56025, Italy
- Department of Excellence in Robotics and AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy
| | - Mariana Medina-Sánchez
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Oliver G Schmidt
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, Reichenhainer Strasse 10, 09107 Chemnitz, Germany
- School of Science, TU Dresden, 01062 Dresden, Germany
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Kruk D, Rochowski P, Florek-Wojciechowska M, Sebastião PJ, Lurie DJ, Broche LM. 1H spin-lattice NMR relaxation in the presence of residual dipolar interactions - Dipolar relaxation enhancement. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2020; 318:106783. [PMID: 32755749 DOI: 10.1016/j.jmr.2020.106783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/29/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
A model of spin-lattice relaxation for spin-1/2 nuclei in the presence of a residual dipole-dipole coupling has been presented. For slow dynamics the model predicts a bi-exponential relaxation at low frequencies, when the residual dipole-dipole interaction dominates the Zeeman coupling. Moreover, according to the model a frequency-specific relaxation enhancement, referred to as Dipolar Relaxation Enhancement (DRE) in analogy to the Quadrupole Relaxation Enhancement (QRE) is expected. The frequency position of the relaxation maximum is determined by the amplitude of the residual dipole-dipole interaction. Experimental examples of relaxation properties that might be attributed to the DRE are presented. The DRE effect has the potential to be exploited, in analogy to QRE, as a unique source of information about molecular dynamics and structure.
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Affiliation(s)
- Danuta Kruk
- Faculty of Mathematics and Computer Science, University of Warmia & Mazury in Olsztyn, Słoneczna 54, 10-710 Olsztyn, Poland.
| | - Pawel Rochowski
- Faculty of Mathematics and Computer Science, University of Warmia & Mazury in Olsztyn, Słoneczna 54, 10-710 Olsztyn, Poland
| | | | - Pedro José Sebastião
- Department of Physics, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - David J Lurie
- Bio-Medical Physics, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, Scotland, United Kingdom
| | - Lionel M Broche
- Bio-Medical Physics, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, Scotland, United Kingdom
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Chanet N, Guillot G, Willoquet G, Jourdain L, Dubuisson RM, Reganha G, de Rochefort L. Design of a fast field-cycling magnetic resonance imaging system, characterization and methods for relaxation dispersion measurements around 1.5 T. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2020; 91:024102. [PMID: 32113406 DOI: 10.1063/1.5128851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
The dependence of the nuclear magnetic resonance relaxation rate on the magnetic field has been widely studied, in particular, in biomedical areas with the objectives to better understand the underlying microscopic mechanisms in tissues and provide biomarkers of diseases. By combining fast-field cycling (FFC) and magnetic resonance imaging (MRI), it is possible to provide localized relaxation dispersion measurements in heterogeneous systems with recent demonstrations in solutions, biological samples, human beings, and small animals. We report here the developments and performances of a device designed for small animal FFC-MRI comprising a resistive insert technology operating inside a 1.5 T MRI system. Specific measurement methods were developed to characterize the system efficiency, response time, homogeneity, stability, and compensation. By adding a non-linear element in the system and using a dual amplifier strategy, it is shown that large field offsets can be produced during relaxation periods while maintaining precise field control during detection periods. The measurement of longitudinal nuclear magnetic relaxation dispersion (NMRD) profiles in the range of 1.08 T-1.92 T is reported, essentially displaying a linear variation in this range for common MRI contrast agents. The slopes of both the longitudinal and transverse relaxation dispersion profiles at 1.5 T are measured and validated, extending the capabilities of previous approaches. The performances of a longitudinal relaxation dispersion mapping method are finally reported, opening the way to quantitative preclinical dispersion imaging studies at a high FFC-MRI field.
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Affiliation(s)
- Nicolas Chanet
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Geneviève Guillot
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Georges Willoquet
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Laurène Jourdain
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Rose-Marie Dubuisson
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Gaël Reganha
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Ludovic de Rochefort
- Aix-Marseille University, CNRS, CRMBM (Center for Magnetic Resonance in Biology and Medicine-UMR 7339), Marseille, France
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Dynamics of Solid Proteins by Means of Nuclear Magnetic Resonance Relaxometry. Biomolecules 2019; 9:biom9110652. [PMID: 31731514 PMCID: PMC6920843 DOI: 10.3390/biom9110652] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/16/2019] [Accepted: 10/19/2019] [Indexed: 01/21/2023] Open
Abstract
1H Nuclear magnetic resonance (NMR) relaxometry was exploited to investigate the dynamics of solid proteins. The relaxation experiments were performed at 37 °C over a broad frequency range, from approximately 10 kHz to 40 MHz. Two relaxation contributions to the overall 1H spin-lattice relaxation were revealed; they were associated with 1H-1H and 1H-14N magnetic dipole-dipole interactions, respectively. The 1H-1H relaxation contribution was interpreted in terms of three dynamical processes occurring on timescales of 10-6 s, 10-7 s, and 10-8 s, respectively. The 1H-14N relaxation contribution shows quadrupole relaxation enhancement effects. A thorough analysis of the data was performed revealing similarities in the protein dynamics, despite their different structures. Among several parameters characterizing the protein dynamics and structure (e.g., electric field gradient tensor at the position of 14N nuclei), the orientation of the 1H-14N dipole-dipole axis, with respect to the principal axis system of the electric field gradient, was determined, showing that, for lysozyme, it was considerably different than for the other proteins. Moreover, the validity range of a closed form expression describing the 1H-14N relaxation contribution was determined by a comparison with a general approach based on the stochastic Liouville equation.
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