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Salnikov OG, Shchepin RV, Chukanov NV, Jaigirdar L, Pham W, Kovtunov KV, Koptyug IV, Chekmenev EY. Effects of Deuteration of 13C-Enriched Phospholactate on Efficiency of Parahydrogen-Induced Polarization by Magnetic Field Cycling. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:24740-24749. [PMID: 31447960 PMCID: PMC6707357 DOI: 10.1021/acs.jpcc.8b07365] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We report herein a large-scale (>10 g) synthesis of isotopically enriched 1-13C-phosphoenolpyruvate and 1-13C-phosphoenolpyruvate-d2 for application in hyperpolarized imaging technology. The 1-13C-phosphoenolpyruvate-d2 was synthesized with 57% overall yield (over two steps), and >98% 2H isotopic purity, representing an improvement over the previous report. The same outcome was achieved for 1-13C-phosphoenolpyruvate. These two unsaturated compounds with C=C bonds were employed for parahydrogen-induced polarization via pairwise parahydrogen addition in aqueous medium. We find that deuteration of 1-13C-phosphoenolpyruvate resulted in overall increase of 1H T1 of nascent hyperpolarized protons (4.30 ± 0.04 s versus 2.06 ± 0.01 s) and 1H polarization (~2.5% versus ~0.7%) of the resulting hyperpolarized 1-13C-phospholactate. The nuclear spin polarization of nascent parahydrogen-derived protons was transferred to 1-13C nucleus via magnetic field cycling procedure. The proton T1 increase in hyperpolarized deuterated 1-13C-phospholactate yielded approximately 30% better 13C polarization compared to non-deuterated hyperpolarized 1-13C-phospholactate. Analysis of T1 relaxation revealed that deuteration of 1-13C-phospholactate may have resulted in approximately 3-fold worse H→13C polarization transfer efficiency via magnetic field cycling. Since magnetic field cycling is a key polarization transfer step in the Side-Arm Hydrogenation approach, the presented findings may guide more rationale design of contrast agents using parahydrogen polarization of a broad range of 13C hyperpolarized contrast agents for molecular imaging employing 13C MRI. The hyperpolarized 1-13C-phospholactate-d2 is of biomedical imaging relevance because it undergoes in vivo dephosphorylation and becomes 13C hyperpolarized lactate, which as we show can be detected in the brain using 13C hyperpolarized MRI; an implication for future imaging of neurodegenerative diseases and dementia.
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Affiliation(s)
- Oleg G. Salnikov
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS)
- Department of Radiology
| | - Nikita V. Chukanov
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Lamya Jaigirdar
- Vanderbilt University Institute of Imaging Science (VUIIS)
- School of Engineering
| | - Wellington Pham
- Vanderbilt University Institute of Imaging Science (VUIIS)
- Department of Radiology
- Department of Biomedical Engineering
- Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, Tennessee 37232-2310, United
States
| | - Kirill V. Kovtunov
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Igor V. Koptyug
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS)
- Department of Radiology
- Department of Biomedical Engineering
- Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, Tennessee 37232-2310, United
States
- Department of Chemistry, Integrative Biosciences (Ibio), Wayne State University, Karmanos Cancer Institute
(KCI), Detroit, Michigan, 48202, United States
- Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow, 119991, Russia
- Corresponding Author:
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52
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Tokmic K, Greer RB, Zhu L, Fout AR. 13C NMR Signal Enhancement Using Parahydrogen-Induced Polarization Mediated by a Cobalt Hydrogenation Catalyst. J Am Chem Soc 2018; 140:14844-14850. [DOI: 10.1021/jacs.8b08614] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Kenan Tokmic
- School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Rianna B. Greer
- School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Lingyang Zhu
- School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Alison R. Fout
- School of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
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53
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Theis T, Ariyasingha NM, Shchepin RV, Lindale J, Warren WS, Chekmenev EY. Quasi-Resonance Signal Amplification by Reversible Exchange. J Phys Chem Lett 2018; 9:6136-6142. [PMID: 30284835 PMCID: PMC6247415 DOI: 10.1021/acs.jpclett.8b02669] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Here we present the feasibility of NMR signal amplification by reversible exchange (SABRE) using radio frequency irradiation at low magnetic field (0.05 T) in the regime where the chemical shifts of free and catalyst-bound species are similar. In SABRE, the 15N-containing substrate and parahydrogen perform simultaneous chemical exchange on an iridium hexacoordinate complex. A shaped spin-lock induced crossing (SLIC) radio frequency pulse sequence followed by a delay is applied at quasi-resonance (QUASR) conditions of 15N spins of a 15N-enriched substrate. As a result of this pulse sequence application, 15N z-magnetization is created from the spin order of parahydrogen-derived hyperpolarized hydrides. The repetition of the pulse sequence block consisting of a shaped radio frequency pulse and the delay leads to the buildup of 15N magnetization. The modulation of this effect by the irradiation frequency, pulse duration and amplitude, delay duration, and number of pumping cycles was demonstrated. Pyridine-15N, acetonitrile-15N, and metronidazole-15N2-13C2 substrates were studied representing three classes of compounds (five- and six-membered heterocycles and nitrile), showing the wide applicability of the technique. Metronidazole-15N2-13C2 is an FDA-approved antibiotic that can be injected in large quantities, promising noninvasive and accurate hypoxia sensing. The 15N hyperpolarization levels attained with QUASR-SABRE on metronidazole-15N2-13C2 were more than 2-fold greater than those with SABRE-SHEATH (SABRE in shield enables alignment transfer to heteronuclei), demonstrating that QUASR-SABRE can deliver significantly more efficient means of SABRE hyperpolarization.
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Affiliation(s)
- Thomas Theis
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695-8204, United States
- Department of Chemistry, Duke University, Durham, North Carolina, 27708, United States
| | - Nuwandi M. Ariyasingha
- Department of Chemistry, Integrative Biosciences (Ibio), Wayne State University, Karmanos Cancer Institute (KCI), Detroit, Michigan, 48202, United States
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology and Radiological Sciences, Nashville, Tennessee, 37232-2310, United States
| | - Jacob Lindale
- Department of Chemistry, Duke University, Durham, North Carolina, 27708, United States
| | - Warren S. Warren
- Department of Chemistry, Duke University, Durham, North Carolina, 27708, United States
| | - Eduard Y. Chekmenev
- Department of Chemistry, Integrative Biosciences (Ibio), Wayne State University, Karmanos Cancer Institute (KCI), Detroit, Michigan, 48202, United States
- Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow, 119991, Russia
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54
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Chukanov NV, Salnikov OG, Shchepin RV, Svyatova A, Kovtunov KV, Koptyug IV, Chekmenev EY. 19F Hyperpolarization of 15N-3- 19F-Pyridine Via Signal Amplification by Reversible Exchange. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:23002-23010. [PMID: 31435456 PMCID: PMC6703844 DOI: 10.1021/acs.jpcc.8b06654] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We report synthesis of 15N-3-19F-pyridine via Zincke salt formation with the overall 35% yield and 84% 15N isotopic purity. Hyperpolarization studies of Signal Amplification by Reversible Exchange (SABRE) and SABRE in SHield Enables Alignment Transfer to Heteronuclei (SABRE-SHEATH) were performed to investigate the mechanism of polarization transfer from parahydrogen-derived hydride protons to 19F nucleus in milli-Tesla and micro-Tesla magnetic field regimes in 15N-3-19F-pyridine and 14N-3-19F-pyridine. We found the mismatch between 15N and 19F magnetic field hyperpolarization profiles in the micro-Tesla regime indicating that the spontaneous hyperpolarization process likely happens directly from parahydrogen-derived hydride protons to 19F nucleus without spin-relaying via 15N site. In case of SABRE magnetic field regime (milli-Tesla magnetic field range), we found that magnetic field profiles for 1H and 19F hyperpolarization are very similar, and 19F polarization levels are significantly lower than 1H SABRE polarization levels and lower than 19F SABRE-SHEATH (i.e. obtained at micro-Tesla magnetic field) polarization levels. Our findings support the hypothesis that in milli-Tesla magnetic field regime, the process of 19F nuclei hyperpolarization is relayed via protons of substrate, and therefore is very inefficient. These findings are important in the context of improvement of the hyperpolarization hardware and rational design of the hyperpolarized molecular probes.
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Affiliation(s)
- Nikita V. Chukanov
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Oleg G. Salnikov
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology, Department of Biomedical Engineering, and Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, Tennessee 37232-2310, United States
| | - Alexandra Svyatova
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Kirill V. Kovtunov
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Igor V. Koptyug
- International Tomography Center, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology, Department of Biomedical Engineering, and Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, Tennessee 37232-2310, United States
- Department of Chemistry, Integrative Biosciences (Ibio), Wayne State University, Karmanos Cancer Institute (KCI), Detroit, Michigan 48202, United States
- Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow 119991, Russia
- Corresponding Author
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55
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Hövener JB, Pravdivtsev AN, Kidd B, Bowers CR, Glöggler S, Kovtunov KV, Plaumann M, Katz-Brull R, Buckenmaier K, Jerschow A, Reineri F, Theis T, Shchepin RV, Wagner S, Bhattacharya P, Zacharias NM, Chekmenev EY. Parahydrogen-Based Hyperpolarization for Biomedicine. Angew Chem Int Ed Engl 2018; 57:11140-11162. [PMID: 29484795 PMCID: PMC6105405 DOI: 10.1002/anie.201711842] [Citation(s) in RCA: 228] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/14/2018] [Indexed: 12/22/2022]
Abstract
Magnetic resonance (MR) is one of the most versatile and useful physical effects used for human imaging, chemical analysis, and the elucidation of molecular structures. However, its full potential is rarely used, because only a small fraction of the nuclear spin ensemble is polarized, that is, aligned with the applied static magnetic field. Hyperpolarization methods seek other means to increase the polarization and thus the MR signal. A unique source of pure spin order is the entangled singlet spin state of dihydrogen, parahydrogen (pH2 ), which is inherently stable and long-lived. When brought into contact with another molecule, this "spin order on demand" allows the MR signal to be enhanced by several orders of magnitude. Considerable progress has been made in the past decade in the area of pH2 -based hyperpolarization techniques for biomedical applications. It is the goal of this Review to provide a selective overview of these developments, covering the areas of spin physics, catalysis, instrumentation, preparation of the contrast agents, and applications.
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Affiliation(s)
- Jan-Bernd Hövener
- Section Biomedical Imaging, Molecular Imaging North Competence Center (MOIN CC), Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel University, Am Botanischen Garten 14, 24118, Kiel, Germany
| | - Andrey N Pravdivtsev
- Section Biomedical Imaging, Molecular Imaging North Competence Center (MOIN CC), Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel University, Am Botanischen Garten 14, 24118, Kiel, Germany
| | - Bryce Kidd
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL, 62901, USA
| | - C Russell Bowers
- Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Stefan Glöggler
- Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, Von-Siebold-Strasse 3A, 37075, Göttingen, Germany
| | - Kirill V Kovtunov
- International Tomography Center SB RAS, 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Pirogova St. 2, 630090, Novosibirsk, Russia
| | - Markus Plaumann
- Department of Biometry and Medical Informatics, Otto-von-Guericke University of Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany
| | - Rachel Katz-Brull
- Department of Radiology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Kai Buckenmaier
- Magnetic resonance center, Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
| | - Alexej Jerschow
- Department of Chemistry, New York University, 100 Washington Sq. East, New York, NY, 10003, USA
| | - Francesca Reineri
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy
| | - Thomas Theis
- Department of Chemistry & Department of Physics, Duke University, Durham, NC, 27708, USA
| | - Roman V Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology and Radiological Sciences, 1161 21st Ave South, MCN AA-1105, Nashville, TN, 37027, USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute, Cedars Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Pratip Bhattacharya
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Niki M Zacharias
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Eduard Y Chekmenev
- Russian Academy of Sciences (RAS), Leninskiy Prospekt 14, Moscow, 119991, Russia
- Department of Chemistry, Karmanos Cancer Institute (KCI) and Integrative Biosciences (Ibio), Wayne State University, Detroit, MI, 48202, USA
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56
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Hövener J, Pravdivtsev AN, Kidd B, Bowers CR, Glöggler S, Kovtunov KV, Plaumann M, Katz‐Brull R, Buckenmaier K, Jerschow A, Reineri F, Theis T, Shchepin RV, Wagner S, Bhattacharya P, Zacharias NM, Chekmenev EY. Parawasserstoff‐basierte Hyperpolarisierung für die Biomedizin. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711842] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jan‐Bernd Hövener
- Sektion Biomedizinische Bildgebung, Molecular Imaging North Competence Center (MOIN CC) Klinik für Radiologie und Neuroradiologie Universitätsklinikum Schleswig-Holstein, Christian-Albrechts-Universität Kiel Am Botanischen Garten 14 24118 Kiel Deutschland
| | - Andrey N. Pravdivtsev
- Sektion Biomedizinische Bildgebung, Molecular Imaging North Competence Center (MOIN CC) Klinik für Radiologie und Neuroradiologie Universitätsklinikum Schleswig-Holstein, Christian-Albrechts-Universität Kiel Am Botanischen Garten 14 24118 Kiel Deutschland
| | - Bryce Kidd
- Department of Chemistry and Biochemistry Southern Illinois University Carbondale IL 62901 USA
| | - C. Russell Bowers
- Department of Chemistry University of Florida Gainesville FL 32611 USA
| | - Stefan Glöggler
- Max Planck-Institut für Biophysikalische Chemie Am Fassberg 11 37077 Göttingen Deutschland
- Center for Biostructural Imaging of Neurodegeneration Von-Siebold-Straße 3A 37075 Göttingen Deutschland
| | - Kirill V. Kovtunov
- International Tomography Center SB RAS 630090 Novosibirsk Russland
- Department of Natural Sciences Novosibirsk State University Pirogova St. 2 630090 Novosibirsk Russland
| | - Markus Plaumann
- Institut für Biometrie und Medizinische Informatik Otto-von-Guericke-Universität Magdeburg Leipziger Straße 44 39120 Magdeburg Deutschland
| | - Rachel Katz‐Brull
- Department of Radiology Hadassah-Hebrew University Medical Center Jerusalem Israel
| | - Kai Buckenmaier
- Magnetresonanz-Zentrum Max Planck-Institut für biologische Kybernetik Tübingen Deutschland
| | - Alexej Jerschow
- Department of Chemistry New York University 100 Washington Sq. East New York NY 10003 USA
| | - Francesca Reineri
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 Torino Italien
| | - Thomas Theis
- Department of Chemistry & Department of Physics Duke University Durham NC 27708 USA
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology and Radiological Sciences 1161 21st Ave South, MCN AA-1105 Nashville TN 37027 USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute Cedars Sinai Medical Center Los Angeles CA 90048 USA
| | - Pratip Bhattacharya
- Department of Cancer Systems Imaging University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Niki M. Zacharias
- Department of Cancer Systems Imaging University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology and Radiological Sciences 1161 21st Ave South, MCN AA-1105 Nashville TN 37027 USA
- Russian Academy of Sciences (RAS) Leninskiy Prospekt 14 Moscow 119991 Russland
- Department of Chemistry, Karmanos Cancer Institute (KCI) and Integrative Biosciences (Ibio) Wayne State University Detroit MI 48202 USA
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McCormick J, Korchak S, Mamone S, Ertas YN, Liu Z, Verlinsky L, Wagner S, Glöggler S, Bouchard LS. More Than 12 % Polarization and 20 Minute Lifetime of 15 N in a Choline Derivative Utilizing Parahydrogen and a Rhodium Nanocatalyst in Water. Angew Chem Int Ed Engl 2018; 57:10692-10696. [PMID: 29923285 DOI: 10.1002/anie.201804185] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/14/2018] [Indexed: 11/05/2022]
Abstract
Hyperpolarization techniques are key to extending the capabilities of MRI for the investigation of structural, functional and metabolic processes in vivo. Recent heterogeneous catalyst development has produced high polarization in water using parahydrogen with biologically relevant contrast agents. A heterogeneous ligand-stabilized Rh catalyst is introduced that is capable of achieving 15 N polarization of 12.2±2.7 % by hydrogenation of neurine into a choline derivative. This is the highest 15 N polarization of any parahydrogen method in water to date. Notably, this was performed using a deuterated quaternary amine with an exceptionally long spin-lattice relaxation time (T1 ) of 21.0±0.4 min. These results open the door to the possibility of 15 N in vivo imaging using nontoxic similar model systems because of the biocompatibility of the production media and the stability of the heterogeneous catalyst using parahydrogen-induced polarization (PHIP) as the hyperpolarization method.
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Affiliation(s)
- Jeffrey McCormick
- Department of Chemistry and Biochemistry, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA
| | - Sergey Korchak
- Research Group for NMR Signal Enhancement, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.,Center for Biostructural Imaging of Neurodegeneration, Von-Siebold-Str. 3A, 37075, Göttingen, Germany
| | - Salvatore Mamone
- Research Group for NMR Signal Enhancement, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.,Center for Biostructural Imaging of Neurodegeneration, Von-Siebold-Str. 3A, 37075, Göttingen, Germany
| | - Yavuz N Ertas
- Department of Chemistry and Biochemistry, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA.,Department of Bioengineering, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA
| | - Zhiyu Liu
- Department of Chemistry and Biochemistry, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA
| | - Luke Verlinsky
- Department of Chemistry and Biochemistry, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Davis Building G149E, Los Angeles, CA, 90048, USA
| | - Stefan Glöggler
- Research Group for NMR Signal Enhancement, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.,Center for Biostructural Imaging of Neurodegeneration, Von-Siebold-Str. 3A, 37075, Göttingen, Germany
| | - Louis-S Bouchard
- Department of Chemistry and Biochemistry, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA.,Department of Bioengineering, University of California at Los Angeles, 607 Charles E Young Drive East, Los Angeles, CA, 90095-1569, USA.,The Molecular Biology Institute, Jonsson Comprehensive Cancer Center, California NanoSystems Institute, University of California at Los Angeles, USA
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58
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McCormick J, Korchak S, Mamone S, Ertas YN, Liu Z, Verlinsky L, Wagner S, Glöggler S, Bouchard L. More Than 12 % Polarization and 20 Minute Lifetime of
15
N in a Choline Derivative Utilizing Parahydrogen and a Rhodium Nanocatalyst in Water. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804185] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jeffrey McCormick
- Department of Chemistry and Biochemistry University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
| | - Sergey Korchak
- Research Group for NMR Signal Enhancement Max Planck Institute for Biophysical Chemistry Am Fassberg 11 37077 Göttingen Germany
- Center for Biostructural Imaging of Neurodegeneration Von-Siebold-Str. 3A 37075 Göttingen Germany
| | - Salvatore Mamone
- Research Group for NMR Signal Enhancement Max Planck Institute for Biophysical Chemistry Am Fassberg 11 37077 Göttingen Germany
- Center for Biostructural Imaging of Neurodegeneration Von-Siebold-Str. 3A 37075 Göttingen Germany
| | - Yavuz N. Ertas
- Department of Chemistry and Biochemistry University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
- Department of Bioengineering University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
| | - Zhiyu Liu
- Department of Chemistry and Biochemistry University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
| | - Luke Verlinsky
- Department of Chemistry and Biochemistry University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute Cedars-Sinai Medical Center 8700 Beverly Blvd, Davis Building G149E Los Angeles CA 90048 USA
| | - Stefan Glöggler
- Research Group for NMR Signal Enhancement Max Planck Institute for Biophysical Chemistry Am Fassberg 11 37077 Göttingen Germany
- Center for Biostructural Imaging of Neurodegeneration Von-Siebold-Str. 3A 37075 Göttingen Germany
| | - Louis‐S. Bouchard
- Department of Chemistry and Biochemistry University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
- Department of Bioengineering University of California at Los Angeles 607 Charles E Young Drive East Los Angeles CA 90095-1569 USA
- The Molecular Biology Institute Jonsson Comprehensive Cancer Center California NanoSystems Institute University of California at Los Angeles USA
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59
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Chukanov N, Salnikov OG, Shchepin RV, Kovtunov KV, Koptyug IV, Chekmenev EY. Synthesis of Unsaturated Precursors for Parahydrogen-Induced Polarization and Molecular Imaging of 1- 13C-Acetates and 1- 13C-Pyruvates via Side Arm Hydrogenation. ACS OMEGA 2018; 3:6673-6682. [PMID: 29978146 PMCID: PMC6026840 DOI: 10.1021/acsomega.8b00983] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 06/08/2018] [Indexed: 05/05/2023]
Abstract
Hyperpolarized forms of 1-13C-acetates and 1-13C-pyruvates are used as diagnostic contrast agents for molecular imaging of many diseases and disorders. Here, we report the synthetic preparation of 1-13C isotopically enriched and pure from solvent acetates and pyruvates derivatized with unsaturated ester moiety. The reported unsaturated precursors can be employed for NMR hyperpolarization of 1-13C-acetates and 1-13C-pyruvates via parahydrogen-induced polarization (PHIP). In this PHIP variant, Side arm hydrogenation (SAH) of unsaturated ester moiety is followed by the polarization transfer from nascent parahydrogen protons to 13C nucleus via magnetic field cycling procedure to achieve hyperpolarization of 13C nuclear spins. This work reports the synthesis of PHIP-SAH precursors: vinyl 1-13C-acetate (55% yield), allyl 1-13C-acetate (70% yield), propargyl 1-13C-acetate (45% yield), allyl 1-13C-pyruvate (60% yield), and propargyl 1-13C-pyruvate (35% yield). Feasibility of PHIP-SAH 13C hyperpolarization was verified by 13C NMR spectroscopy: hyperpolarized allyl 1-13C-pyruvate was produced from propargyl 1-13C-pyruvate with 13C polarization of ∼3.2% in CD3OD and ∼0.7% in D2O. 13C magnetic resonance imaging is demonstrated with hyperpolarized 1-13C-pyruvate in aqueous medium.
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Affiliation(s)
- Nikita
V. Chukanov
- International
Tomography Center, SB RAS, Institutskaya Street 3A, Novosibirsk 630090, Russia
- Novosibirsk
State University, Pirogova
Street 2, Novosibirsk 630090, Russia
| | - Oleg G. Salnikov
- International
Tomography Center, SB RAS, Institutskaya Street 3A, Novosibirsk 630090, Russia
- Novosibirsk
State University, Pirogova
Street 2, Novosibirsk 630090, Russia
| | - Roman V. Shchepin
- Vanderbilt
University Institute of Imaging Science (VUIIS), Department of Radiology,
Department of Biomedical Engineering, and Vanderbilt-Ingram Cancer
Center (VICC), Vanderbilt University, Nashville, Tennessee 37232-2310, United States
| | - Kirill V. Kovtunov
- International
Tomography Center, SB RAS, Institutskaya Street 3A, Novosibirsk 630090, Russia
- Novosibirsk
State University, Pirogova
Street 2, Novosibirsk 630090, Russia
| | - Igor V. Koptyug
- International
Tomography Center, SB RAS, Institutskaya Street 3A, Novosibirsk 630090, Russia
- Novosibirsk
State University, Pirogova
Street 2, Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Vanderbilt
University Institute of Imaging Science (VUIIS), Department of Radiology,
Department of Biomedical Engineering, and Vanderbilt-Ingram Cancer
Center (VICC), Vanderbilt University, Nashville, Tennessee 37232-2310, United States
- Russian
Academy of Sciences, Leninskiy Prospekt 14, Moscow 119991, Russia
- Department
of Chemistry, Integrative Biosciences (Ibio), Wayne State University, Karmanos Cancer Institute (KCI), Detroit, Michigan 48202, United States
- E-mail:
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60
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Cavallari E, Carrera C, Sorge M, Bonne G, Muchir A, Aime S, Reineri F. The 13C hyperpolarized pyruvate generated by ParaHydrogen detects the response of the heart to altered metabolism in real time. Sci Rep 2018; 8:8366. [PMID: 29849091 PMCID: PMC5976640 DOI: 10.1038/s41598-018-26583-2] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 05/14/2018] [Indexed: 01/13/2023] Open
Abstract
Many imaging methods have been proposed to act as surrogate markers of organ damage, yet for many candidates the essential biomarkers characteristics of the injured organ have not yet been described. Hyperpolarized [1-13C]pyruvate allows real time monitoring of metabolism in vivo. ParaHydrogen Induced Polarization (PHIP) is a portable, cost effective technique able to generate 13C MR hyperpolarized molecules within seconds. The introduction of the Side Arm Hydrogenation (SAH) strategy offered a way to widen the field of PHIP generated systems and to make this approach competitive with the currently applied dissolution-DNP (Dynamic Nuclear Polarization) method. Herein, we describe the first in vivo metabolic imaging study using the PHIP-SAH hyperpolarized [1-13C]pyruvate. In vivo maps of pyruvate and of its metabolic product lactate have been acquired on a 1 T MRI scanner. By comparing pyruvate/lactate 13C label exchange rate in a mouse model of dilated cardiomyopathy, it has been found that the metabolic dysfunction occurring in the cardiac muscle of the diseased mice can be detected well before the disease can be assessed by echocardiographic investigations.
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Affiliation(s)
- Eleonora Cavallari
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Torino, Italy
| | - Carla Carrera
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Torino, Italy
| | - Matteo Sorge
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Torino, Italy
| | - Gisèle Bonne
- Sorbonne Université, Inserm UMRS974, Center of Research in Myology, Institut de Myologie, G.H. Pitie-Salpetriere, Paris, France
| | - Antoine Muchir
- Sorbonne Université, Inserm UMRS974, Center of Research in Myology, Institut de Myologie, G.H. Pitie-Salpetriere, Paris, France
| | - Silvio Aime
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Torino, Italy
| | - Francesca Reineri
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Torino, Italy.
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61
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Kovtunov KV, Pokochueva EV, Salnikov OG, Cousin S, Kurzbach D, Vuichoud B, Jannin S, Chekmenev EY, Goodson BM, Barskiy DA, Koptyug IV. Hyperpolarized NMR Spectroscopy: d-DNP, PHIP, and SABRE Techniques. Chem Asian J 2018; 13:10.1002/asia.201800551. [PMID: 29790649 PMCID: PMC6251772 DOI: 10.1002/asia.201800551] [Citation(s) in RCA: 156] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Indexed: 11/10/2022]
Abstract
The intensity of NMR signals can be enhanced by several orders of magnitude by using various techniques for the hyperpolarization of different molecules. Such approaches can overcome the main sensitivity challenges facing modern NMR/magnetic resonance imaging (MRI) techniques, whilst hyperpolarized fluids can also be used in a variety of applications in material science and biomedicine. This Focus Review considers the fundamentals of the preparation of hyperpolarized liquids and gases by using dissolution dynamic nuclear polarization (d-DNP) and parahydrogen-based techniques, such as signal amplification by reversible exchange (SABRE) and parahydrogen-induced polarization (PHIP), in both heterogeneous and homogeneous processes. The various new aspects in the formation and utilization of hyperpolarized fluids, along with the possibility of observing NMR signal enhancement, are described.
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Affiliation(s)
- Kirill V. Kovtunov
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk 630090 (Russia)
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090 (Russia)
| | - Ekaterina V. Pokochueva
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk 630090 (Russia)
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090 (Russia)
| | - Oleg G. Salnikov
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk 630090 (Russia)
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090 (Russia)
| | - Samuel Cousin
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Dennis Kurzbach
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Basile Vuichoud
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Sami Jannin
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Eduard Y. Chekmenev
- Department of Chemistry & Karmanos Cancer Center, Wayne State University, Detroit, 48202, MI, United States
- Russian Academy of Sciences, Moscow, 119991, Russia
| | - Boyd M. Goodson
- Southern Illinois University, Carbondale, IL 62901, United States
| | - Danila A. Barskiy
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-3220, United States
| | - Igor V. Koptyug
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk 630090 (Russia)
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090 (Russia)
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62
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Taglang C, Korenchan DE, von Morze C, Yu J, Najac C, Wang S, Blecha JE, Subramaniam S, Bok R, VanBrocklin HF, Vigneron DB, Ronen SM, Sriram R, Kurhanewicz J, Wilson DM, Flavell RR. Late-stage deuteration of 13C-enriched substrates for T 1 prolongation in hyperpolarized 13C MRI. Chem Commun (Camb) 2018; 54:5233-5236. [PMID: 29726563 PMCID: PMC6054790 DOI: 10.1039/c8cc02246a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A robust and selective late-stage deuteration methodology was applied to 13C-enriched amino and alpha hydroxy acids to increase spin-lattice relaxation constant T1 for hyperpolarized 13C magnetic resonance imaging. For the five substrates with 13C-labeling on the C1-position ([1-13C]alanine, [1-13C]serine, [1-13C]lactate, [1-13C]glycine, and [1-13C]valine), significant increase of their T1 was observed at 3 T with deuterium labeling (+26%, 22%, +16%, +25% and +29%, respectively). Remarkably, in the case of [2-13C]alanine, [2-13C]serine and [2-13C]lactate, deuterium labeling led to a greater than four fold increase in T1. [1-13C,2-2H]alanine, produced using this method, was applied to in vitro enzyme assays with alanine aminotransferase, demonstrating a kinetic isotope effect.
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Affiliation(s)
- Céline Taglang
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - David E. Korenchan
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Cornelius von Morze
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Justin Yu
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Chloé Najac
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Sinan Wang
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Joseph E. Blecha
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Sukumar Subramaniam
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Robert Bok
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Henry F. VanBrocklin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Daniel B. Vigneron
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Sabrina M. Ronen
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Renuka Sriram
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - John Kurhanewicz
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - David M. Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
| | - Robert R. Flavell
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.
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63
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Braun M, Häseli S, Rösch F, Piel M, Münnemann K. NMR Hyperpolarization of Established PET Tracers. ChemistrySelect 2018. [DOI: 10.1002/slct.201800364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Manuel Braun
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
| | - Sascha Häseli
- Inst. of Nuclear ChemistryJohannes Gutenberg-University Mainz Fritz-Strassmann-Weg 2 55128 Mainz Germany
| | - Frank Rösch
- Inst. of Nuclear ChemistryJohannes Gutenberg-University Mainz Fritz-Strassmann-Weg 2 55128 Mainz Germany
| | - Markus Piel
- Inst. of Nuclear ChemistryJohannes Gutenberg-University Mainz Fritz-Strassmann-Weg 2 55128 Mainz Germany
| | - Kerstin Münnemann
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Dept. of Mechanical and Process Engineering, Lab. of Engineering ThermodynamicsUniversity of Kaiserslautern Erwin-Schrödinger-Straße 44 67663 Kaiserslautern Germany
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64
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Cavallari E, Carrera C, Aime S, Reineri F. Studies to enhance the hyperpolarization level in PHIP-SAH-produced C13-pyruvate. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2018; 289:12-17. [PMID: 29448129 DOI: 10.1016/j.jmr.2018.01.019] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/25/2018] [Accepted: 01/27/2018] [Indexed: 05/12/2023]
Abstract
The use of [1-13C]pyruvate, hyperpolarized by dissolution-Dynamic Nuclear Polarization (d-DNP), in in vivo metabolic studies has developed quickly, thanks to the imaging probe's diagnostic relevance. Nevertheless, the cost of a d-DNP polarizer is quite high and the speed of hyperpolarization process is relatively slow, meaning that its use is limited to few research laboratories. ParaHydrogen Induced Polarization Side Arm Hydrogenation (PHIP-SAH) (Reineri et al., 2015) is a cost effective and easy-to-handle method that produces 13C-MR hyperpolarization in [1-13C]pyruvate and other metabolites. This work aims to identify the main determinants of the hyperpolarization levels observed in C13-pyruvate using this method. By dissecting the various steps of the PHIP-SAH procedure, it has been possible to assess the role of several experimental parameters whose optimization must be pursued if this method is to be made suitable for future translational steps. The search for possible solutions has led to improvements in the polarization of sodium [1-13C]pyruvate from 2% to 5%. Moreover, these results suggest that observed polarization levels could be increased considerably by an automatized procedure which would reduce the time required for the work-up passages that are currently carried out manually. The results reported herein mean that the attainment of polarization levels suitable for the metabolic imaging applications of these hyperpolarized substrates show significant promise.
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Affiliation(s)
- Eleonora Cavallari
- Dept. Molecular Biotechnology and Health Sciences, Via Nizza 52, Torino, Italy
| | - Carla Carrera
- Dept. Molecular Biotechnology and Health Sciences, Via Nizza 52, Torino, Italy
| | - Silvio Aime
- Dept. Molecular Biotechnology and Health Sciences, Via Nizza 52, Torino, Italy
| | - Francesca Reineri
- Dept. Molecular Biotechnology and Health Sciences, Via Nizza 52, Torino, Italy.
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65
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Shchepin RV, Jaigirdar L, Chekmenev EY. Spin-Lattice Relaxation of Hyperpolarized Metronidazole in Signal Amplification by Reversible Exchange in Micro-Tesla Fields. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:4984-4996. [PMID: 29955244 PMCID: PMC6017983 DOI: 10.1021/acs.jpcc.8b00283] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Simultaneous reversible chemical exchange of parahydrogen and to-be-hyperpolarized substrate on metal centers enables spontaneous transfer of spin order from parahydrogen singlet to nuclear spins of the substrate. When performed at sub-micro-Tesla magnetic field, this technique of NMR Signal Amplification by Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei (SABRE-SHEATH). SABRE-SHEATH has been shown to hyperpolarize nitrogen-15 sites of a wide range of biologically interesting molecules to a high polarization level (P > 20%) in one minute. Here, we report on a systematic study of 1H, 13C and 15N spin-lattice relaxation (T1) of metronidazole-13C2-15N2 in SABRE-SHEATH hyperpolarization process. In micro-Tesla range, we find that all 1H, 13C and 15N spins studied share approximately the same T1 values (ca. 4 s at the conditions studied) due to mixing of their Zeeman levels, which is consistent with the model of relayed SABRE-SHEATH effect. These T1 values are significantly lower than those at higher magnetic (i.e. the Earth's magnetic field and above), which exceed 3 minutes in some cases. Moreover, these relatively short T1 values observed below 1 micro-Tesla limit the polarization build-up process of SABRE-SHEATH- thereby, limiting maximum attainable 15N polarization. The relatively short nature of T1 values observed below 1 micro-Tesla is primarily caused by intermolecular interactions with quadrupolar iridium centers or dihydride protons of the employed polarization transfer catalyst, whereas intramolecular spin-spin interactions with 14N quadrupolar centers have significantly smaller contribution. The presented experimental results and their analysis will be beneficial for more rational design of SABRE-SHEATH (i) polarization transfer catalyst, and (ii) hyperpolarized molecular probes in the context of biomedical imaging and other applications.
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Affiliation(s)
- Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee 37232-2310 United States
| | - Lamya Jaigirdar
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee 37232-2310 United States
- Vanderbilt University, School of Engineering, Nashville, Tennessee 37232 United States
| | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee 37232-2310 United States
- Department of Biomedical Engineering, Vanderbilt University, Vanderbilt-Ingram Cancer Center (VICC), Nashville, Tennessee 37232-2310, United States
- Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow, 119991, Russia
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66
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Kiryutin AS, Sauer G, Hadjiali S, Yurkovskaya AV, Breitzke H, Buntkowsky G. A highly versatile automatized setup for quantitative measurements of PHIP enhancements. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2017; 285:26-36. [PMID: 29073504 DOI: 10.1016/j.jmr.2017.10.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/12/2017] [Accepted: 10/14/2017] [Indexed: 05/02/2023]
Abstract
The design and application of a versatile and inexpensive experimental extension to NMR spectrometers is described that allows to carry out highly reproducible PHIP experiments directly in the NMR sample tube, i.e. under PASADENA condition, followed by the detection of the NMR spectra of hyperpolarized products with high spectral resolution. Employing this high resolution it is feasible to study kinetic processes in the solution with high accuracy. As a practical example the dissolution of hydrogen gas in the liquid and the PHIP kinetics during the hydrogenation reaction of Fmoc-O-propargyl-l-tyrosine in acetone-d6 are monitored. The timing of the setup is fully controlled by the pulse-programmer of the NMR spectrometer. By flushing with an inert gas it is possible to efficiently quench the hydrogenation reaction in a controlled fashion and to detect the relaxation of hyperpolarization without a background reaction. The proposed design makes it possible to carry out PHIP experiments in an automatic mode and reliably determine the enhancement of polarized signals.
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Affiliation(s)
- Alexey S Kiryutin
- International Tomography Center, Institutskaya 3A, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
| | - Grit Sauer
- Technische Universität Darmstadt, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Alarich-Weiss-Straße 8, Darmstadt 64287, Germany
| | - Sara Hadjiali
- Technische Universität Darmstadt, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Alarich-Weiss-Straße 8, Darmstadt 64287, Germany
| | - Alexandra V Yurkovskaya
- International Tomography Center, Institutskaya 3A, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
| | - Hergen Breitzke
- Technische Universität Darmstadt, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Alarich-Weiss-Straße 8, Darmstadt 64287, Germany
| | - Gerd Buntkowsky
- Technische Universität Darmstadt, Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Alarich-Weiss-Straße 8, Darmstadt 64287, Germany.
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67
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Coffey AM, Shchepin RV, Feng B, Colon RD, Wilkens K, Waddell KW, Chekmenev EY. A pulse programmable parahydrogen polarizer using a tunable electromagnet and dual channel NMR spectrometer. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2017; 284:115-124. [PMID: 29028543 PMCID: PMC5708540 DOI: 10.1016/j.jmr.2017.09.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/20/2017] [Accepted: 09/28/2017] [Indexed: 05/12/2023]
Abstract
Applications of parahydrogen induced polarization (PHIP) often warrant conversion of the chemically-synthesized singlet-state spin order into net heteronuclear magnetization. In order to obtain optimal yields from the overall hyperpolarization process, catalytic hydrogenation must be tightly synchronized to subsequent radiofrequency (RF) transformations of spin order. Commercial NMR consoles are designed to synchronize applied waves on multiple channels and consequently are well-suited as controllers for these types of hyperpolarization experiments that require tight coordination of RF and non-RF events. Described here is a PHIP instrument interfaced to a portable NMR console operating with a static field electromagnet in the milliTesla regime. In addition to providing comprehensive control over chemistry and RF events, this setup condenses the PHIP protocol into a pulse-program that in turn can be readily shared in the manner of traditional pulse sequences. In this device, a TTL multiplexer was constructed to convert spectrometer TTL outputs into 24 VDC signals. These signals then activated solenoid valves to control chemical shuttling and reactivity in PHIP experiments. Consolidating these steps in a pulse-programming environment speeded calibration and improved quality assurance by enabling the B0/B1 fields to be tuned based on the direct acquisition of thermally polarized and hyperpolarized NMR signals. Performance was tested on the parahydrogen addition product of 2-hydroxyethyl propionate-1-13C-d3, where the 13C polarization was estimated to be P13C=20±2.5% corresponding to 13C signal enhancement approximately 25 million-fold at 9.1 mT or approximately 77,000-fold 13C enhancement at 3 T with respect to thermally induced polarization at room temperature.
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Affiliation(s)
- Aaron M Coffey
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Roman V Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Bibo Feng
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Raul D Colon
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Ken Wilkens
- Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Kevin W Waddell
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Eduard Y Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232-2310, United States; Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, TN 37232-2310, United States; Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow 119991, Russia.
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68
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Kovtunov KV, Kovtunova LM, Gemeinhardt ME, Bukhtiyarov AV, Gesiorski J, Bukhtiyarov VI, Chekmenev EY, Koptyug IV, Goodson BM. Heterogeneous Microtesla SABRE Enhancement of 15 N NMR Signals. Angew Chem Int Ed Engl 2017; 56:10433-10437. [PMID: 28644918 PMCID: PMC5561492 DOI: 10.1002/anie.201705014] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Indexed: 11/06/2022]
Abstract
The hyperpolarization of heteronuclei via signal amplification by reversible exchange (SABRE) was investigated under conditions of heterogeneous catalysis and microtesla magnetic fields. Immobilization of [IrCl(COD)(IMes)], [IMes=1,3-bis(2,4,6-trimethylphenyl), imidazole-2-ylidene; COD=cyclooctadiene] catalyst onto silica particles modified with amine linkers engenders an effective heterogeneous SABRE (HET-SABRE) catalyst that was used to demonstrate a circa 100-fold enhancement of 15 N NMR signals in 15 N-pyridine at 9.4 T following parahydrogen bubbling within a magnetic shield. No 15 N NMR enhancement was observed from the supernatant liquid following catalyst separation, which along with XPS characterization supports the fact that the effects result from SABRE under heterogeneous catalytic conditions. The technique can be developed further for producing catalyst-free agents via SABRE with hyperpolarized heteronuclear spins, and thus is promising for biomedical NMR and MRI applications.
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Affiliation(s)
- Kirill V Kovtunov
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Larisa M Kovtunova
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Max E Gemeinhardt
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Andrey V Bukhtiyarov
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Jonathan Gesiorski
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Valerii I Bukhtiyarov
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Eduard Y Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology, Department of Biomedical Engineering, Department of Physics and Astronomy, Vanderbilt-Ingram Cancer Center (VICC), Nashville, TN, 37232-2310, USA
- Russian Academy of Sciences, Leninskiy Prospekt 14, 119991, Moscow, Russia
| | - Igor V Koptyug
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Boyd M Goodson
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL, 62901, USA
- Materials Technology Center, Southern Illinois University, Carbondale, IL, 62901, USA
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69
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Coffey AM, Feldman MA, Shchepin RV, Barskiy DA, Truong ML, Pham W, Chekmenev EY. High-resolution hyperpolarized in vivo metabolic 13C spectroscopy at low magnetic field (48.7mT) following murine tail-vein injection. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2017; 281:246-252. [PMID: 28651245 PMCID: PMC5544012 DOI: 10.1016/j.jmr.2017.06.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/12/2017] [Accepted: 06/14/2017] [Indexed: 05/20/2023]
Abstract
High-resolution 13C NMR spectroscopy of hyperpolarized succinate-1-13C-2,3-d2 is reported in vitro and in vivo using a clinical-scale, biplanar (80cm-gap) 48.7mT permanent magnet with a high homogeneity magnetic field. Non-localized 13C NMR spectra were recorded at 0.52MHz resonance frequency over the torso of a tumor-bearing mouse every 2s. Hyperpolarized 13C NMR signals with linewidths of ∼3Hz (corresponding to ∼6ppm) were recorded in vitro (2mL in a syringe) and in vivo (over a mouse torso). Comparison of the full width at half maximum (FWHM) for 13C NMR spectra acquired at 48.7mT and at 4.7T in a small-animal MRI scanner demonstrates a factor of ∼12 improvement for the 13C resonance linewidth attainable at 48.7mT compared to that at 4.7T in vitro. 13C hyperpolarized succinate-1-13C resonance linewidths in vivo are at least one order of magnitude narrower at 48.7mT compared to those observed in high-field (≥3T) studies employing HP contrast agents. The demonstrated high-resolution 13C in vivo spectroscopy could be useful for high-sensitivity spectroscopic studies involving monitoring HP agent uptake or detecting metabolism using HP contrast agents with sufficiently large 13C chemical shift differences.
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Affiliation(s)
- Aaron M Coffey
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States.
| | - Matthew A Feldman
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Roman V Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Danila A Barskiy
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Milton L Truong
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Wellington Pham
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232-2310, United States; Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, TN 37232-2310, United States
| | - Eduard Y Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Radiology, Vanderbilt University, Nashville, TN 37232-2310, United States; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232-2310, United States; Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University, Nashville, TN 37232-2310, United States; Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow 119991, Russia.
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70
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Kovtunov KV, Kovtunova LM, Gemeinhardt ME, Bukhtiyarov AV, Gesiorski J, Bukhtiyarov VI, Chekmenev EY, Koptyug IV, Goodson BM. Heterogeneous Microtesla SABRE Enhancement of
15
N NMR Signals. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705014] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kirill V. Kovtunov
- Laboratory of Magnetic Resonance Microimaging International Tomography Center, SB RAS 3A Institutskaya St. Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova St. Novosibirsk 630090 Russia
| | - Larisa M. Kovtunova
- Novosibirsk State University 2 Pirogova St. Novosibirsk 630090 Russia
- Boreskov Institute of Catalysis SB RAS 5 Acad. Lavrentiev Pr. Novosibirsk 630090 Russia
| | - Max E. Gemeinhardt
- Department of Chemistry and Biochemistry Southern Illinois University Carbondale IL 62901 USA
| | - Andrey V. Bukhtiyarov
- Boreskov Institute of Catalysis SB RAS 5 Acad. Lavrentiev Pr. Novosibirsk 630090 Russia
| | - Jonathan Gesiorski
- Department of Chemistry and Biochemistry Southern Illinois University Carbondale IL 62901 USA
| | | | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology Department of Biomedical Engineering Department of Physics and Astronomy, Vanderbilt-Ingram Cancer Center (VICC) Nashville TN 37232-2310 USA
- Russian Academy of Sciences Leninskiy Prospekt 14 119991 Moscow Russia
| | - Igor V. Koptyug
- Laboratory of Magnetic Resonance Microimaging International Tomography Center, SB RAS 3A Institutskaya St. Novosibirsk 630090 Russia
- Novosibirsk State University 2 Pirogova St. Novosibirsk 630090 Russia
| | - Boyd M. Goodson
- Department of Chemistry and Biochemistry Southern Illinois University Carbondale IL 62901 USA
- Materials Technology Center Southern Illinois University Carbondale IL 62901 USA
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71
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Bales L, Kovtunov KV, Barskiy DA, Shchepin RV, Coffey AM, Kovtunova LM, Bukhtiyarov AV, Feldman MA, Bukhtiyarov VI, Chekmenev EY, Koptyug IV, Goodson BM. Aqueous, Heterogeneous Parahydrogen-Induced 15N Polarization. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:15304-15309. [PMID: 29238438 PMCID: PMC5723423 DOI: 10.1021/acs.jpcc.7b05912] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 06/20/2017] [Indexed: 05/20/2023]
Abstract
The successful transfer of parahydrogen-induced polarization to 15N spins using heterogeneous catalysts in aqueous solutions was demonstrated. Hydrogenation of a synthesized unsaturated 15N-labeled precursor (neurine) with parahydrogen (p-H2) over Rh/TiO2 heterogeneous catalysts yielded a hyperpolarized structural analog of choline. As a result, 15N polarization enhancements of over two orders of magnitude were achieved for the 15N-ethyl trimethyl ammonium ion product in deuterated water at elevated temperatures. Enhanced 15N NMR spectra were successfully acquired at 9.4 T and 0.05 T. Importantly, long hyperpolarization lifetimes were observed at 9.4 T, with a 15N T1 of ~6 min for the product molecules, and the T1 of the deuterated form exceeded 8 min. Taken together, these results show that this approach for generating hyperpolarized species with extended lifetimes in aqueous, biologically compatible solutions is promising for various biomedical applications.
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Affiliation(s)
- Liana
B. Bales
- Department
of Chemistry and Biochemistry, and Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
| | - Kirill V. Kovtunov
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
- E-mail: (K.V.K.)
| | - Danila A. Barskiy
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Roman V. Shchepin
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Aaron M. Coffey
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Larisa M. Kovtunova
- Novosibirsk
State University, Novosibirsk 630090, Russia
- Boreskov
Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
| | | | - Matthew A. Feldman
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Valerii I. Bukhtiyarov
- Novosibirsk
State University, Novosibirsk 630090, Russia
- Boreskov
Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
- Russian
Academy of Sciences, Moscow 119991, Russia
- E-mail: (E.Y.C.)
| | - Igor V. Koptyug
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
| | - Boyd M. Goodson
- Department
of Chemistry and Biochemistry, and Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
- E-mail: (B.M.G.)
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72
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Cavallari E, Carrera C, Reineri F. ParaHydrogen Hyperpolarized Substrates for Molecular Imaging Studies. Isr J Chem 2017. [DOI: 10.1002/ijch.201700030] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Eleonora Cavallari
- Dept. Molecular Biotechnology and Health Sciences; University of Torino; Via Nizza 52 Torino Italy
| | - Carla Carrera
- Dept. Molecular Biotechnology and Health Sciences; University of Torino; Via Nizza 52 Torino Italy
| | - Francesca Reineri
- Dept. Molecular Biotechnology and Health Sciences; University of Torino; Via Nizza 52 Torino Italy
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73
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Barskiy DA, Shchepin RV, Tanner CPN, Colell JFP, Goodson BM, Theis T, Warren WS, Chekmenev EY. The Absence of Quadrupolar Nuclei Facilitates Efficient
13
C Hyperpolarization via Reversible Exchange with Parahydrogen. Chemphyschem 2017; 18:1493-1498. [DOI: 10.1002/cphc.201700416] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Danila A. Barskiy
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology Department of Biomedical Engineering Department of Physics Vanderbilt-Ingram Cancer Center (VICC) Nashville Tennessee 37232-2310 United States
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology Department of Biomedical Engineering Department of Physics Vanderbilt-Ingram Cancer Center (VICC) Nashville Tennessee 37232-2310 United States
| | | | | | - Boyd M. Goodson
- Southern Illinois University Department of Chemistry and Biochemistry Materials Technology Center Carbondale IL 62901 United States
| | - Thomas Theis
- Departments of Chemistry Duke University 124 Science Drive Durham NC 27708 USA
| | - Warren S. Warren
- Departments of Chemistry Duke University 124 Science Drive Durham NC 27708 USA
| | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology Department of Biomedical Engineering Department of Physics Vanderbilt-Ingram Cancer Center (VICC) Nashville Tennessee 37232-2310 United States
- Russian Academy of Sciences Leninskiy Prospekt 14 119991 Moscow Russia
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74
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Dryden MDM, Fobel R, Fobel C, Wheeler AR. Upon the Shoulders of Giants: Open-Source Hardware and Software in Analytical Chemistry. Anal Chem 2017; 89:4330-4338. [PMID: 28379683 DOI: 10.1021/acs.analchem.7b00485] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Isaac Newton famously observed that "if I have seen further it is by standing on the shoulders of giants." We propose that this sentiment is a powerful motivation for the "open-source" movement in scientific research, in which creators provide everything needed to replicate a given project online, as well as providing explicit permission for users to use, improve, and share it with others. Here, we write to introduce analytical chemists who are new to the open-source movement to best practices and concepts in this area and to survey the state of open-source research in analytical chemistry. We conclude by considering two examples of open-source projects from our own research group, with the hope that a description of the process, motivations, and results will provide a convincing argument about the benefits that this movement brings to both creators and users.
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Affiliation(s)
- Michael D M Dryden
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Ryan Fobel
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.,Donnelly Centre for Cellular and Biomolecular Research , 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Christian Fobel
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.,Donnelly Centre for Cellular and Biomolecular Research , 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Aaron R Wheeler
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.,Donnelly Centre for Cellular and Biomolecular Research , 160 College Street, Toronto, Ontario M5S 3E1, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto , 164 College Street, Toronto, Ontario M5S 3G9, Canada
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75
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Siddiqui S, Kadlecek S, Pourfathi M, Xin Y, Mannherz W, Hamedani H, Drachman N, Ruppert K, Clapp J, Rizi R. The use of hyperpolarized carbon-13 magnetic resonance for molecular imaging. Adv Drug Deliv Rev 2017; 113:3-23. [PMID: 27599979 PMCID: PMC5783573 DOI: 10.1016/j.addr.2016.08.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/25/2016] [Accepted: 08/27/2016] [Indexed: 02/06/2023]
Abstract
Until recently, molecular imaging using magnetic resonance (MR) has been limited by the modality's low sensitivity, especially with non-proton nuclei. The advent of hyperpolarized (HP) MR overcomes this limitation by substantially enhancing the signal of certain biologically important probes through a process known as external nuclear polarization, enabling real-time assessment of tissue function and metabolism. The metabolic information obtained by HP MR imaging holds significant promise in the clinic, where it could play a critical role in disease diagnosis and therapeutic monitoring. This review will provide a comprehensive overview of the developments made in the field of hyperpolarized MR, including advancements in polarization techniques and delivery, probe development, pulse sequence optimization, characterization of healthy and diseased tissues, and the steps made towards clinical translation.
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Affiliation(s)
- Sarmad Siddiqui
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Stephen Kadlecek
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mehrdad Pourfathi
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yi Xin
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - William Mannherz
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hooman Hamedani
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nicholas Drachman
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kai Ruppert
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Justin Clapp
- Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Rahim Rizi
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA.
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76
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Schmidt AB, Berner S, Schimpf W, Müller C, Lickert T, Schwaderlapp N, Knecht S, Skinner JG, Dost A, Rovedo P, Hennig J, von Elverfeldt D, Hövener JB. Liquid-state carbon-13 hyperpolarization generated in an MRI system for fast imaging. Nat Commun 2017; 8:14535. [PMID: 28262691 PMCID: PMC5343473 DOI: 10.1038/ncomms14535] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 01/10/2017] [Indexed: 01/30/2023] Open
Abstract
Hyperpolarized (HP) tracers dramatically increase the sensitivity of magnetic resonance imaging (MRI) to monitor metabolism non-invasively and in vivo. Their production, however, requires an extra polarizing device (polarizer) whose complexity, operation and cost can exceed that of an MRI system itself. Furthermore, the lifetime of HP tracers is short and some of the enhancement is lost during transfer to the application site. Here, we present the production of HP tracers in water without an external polarizer: by Synthesis Amid the Magnet Bore, A Dramatically Enhanced Nuclear Alignment (SAMBADENA) is achieved within seconds, corresponding to a hyperpolarization of ∼20%. As transfer of the tracer is no longer required, SAMBADENA may permit a higher polarization at the time of detection at a fraction of the cost and complexity of external polarizers. This development is particularly promising in light of the recently extended portfolio of biomedically relevant para-hydrogen-tracers and may lead to new diagnostic applications. Hyperpolarized MRI uses molecules with a nuclear spin polarization beyond the thermodynamic equilibrium to enhance imaging contrast. Here, Schmidt et al. enable a single MRI system to both generate a hyperpolarized tracer and perform imaging, eliminating the need for an external polarizer.
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Affiliation(s)
- A B Schmidt
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - S Berner
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany.,German Consortium for Cancer Research (DKTK), Im Neuenheimer Feld 280, Heidelberg 69120, Germany.,German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - W Schimpf
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - C Müller
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany.,German Consortium for Cancer Research (DKTK), Im Neuenheimer Feld 280, Heidelberg 69120, Germany.,German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - T Lickert
- Division Hydrogen Technologies, Fraunhofer Institute for Solar Energy Systems (ISE), Heidenhofstraße 2, Freiburg 79110, Germany
| | - N Schwaderlapp
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - S Knecht
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - J G Skinner
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - A Dost
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - P Rovedo
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - J Hennig
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - D von Elverfeldt
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany
| | - J-B Hövener
- Department of Radiology, Medical Physics, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstrasse 60a, Freiburg 79106, Germany.,German Consortium for Cancer Research (DKTK), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
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77
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Burueva D, Romanov AS, Salnikov OG, Zhivonitko VV, Chen YW, Barskiy DA, Chekmenev EY, Hwang DW, Kovtunov KV, Koptyug IV. Extending the Lifetime of Hyperpolarized Propane Gas through Reversible Dissolution. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:4481-4487. [PMID: 28286597 PMCID: PMC5338591 DOI: 10.1021/acs.jpcc.7b00509] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/06/2017] [Indexed: 05/22/2023]
Abstract
Hyperpolarized (HP) propane produced by the parahydrogen-induced polarization (PHIP) technique has been recently introduced as a promising contrast agent for functional lung magnetic resonance (MR) imaging. However, its short lifetime due to a spin-lattice relaxation time T1 of less than 1 s in the gas phase is a significant translational challenge for its potential biomedical applications. The previously demonstrated approach for extending the lifetime of the HP propane state through long-lived spin states allows the HP propane lifetime to be increased by a factor of ∼3. Here, we demonstrate that a remarkable increase in the propane hyperpolarization decay time at high magnetic field (7.1 T) can be achieved by its dissolution in deuterated organic solvents (acetone-d6 or methanol-d4). The approximate values of the HP decay time for propane dissolved in acetone-d6 are 35.1 and 28.6 s for the CH2 group and the CH3 group, respectively (similar values were obtained for propane dissolved in methanol-d4), which are ∼50 times larger than the gaseous propane T1 value. Furthermore, we show that it is possible to retrieve HP propane from solution to the gas phase with the preservation of hyperpolarization.
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Affiliation(s)
- Dudari
B. Burueva
- International
Tomography Center SB RAS, 3A Institutskaya Street, 630090 Novosibirsk, Russia
- Novosibirsk
State University, 2 Pirogova
Street, 630090 Novosibirsk, Russia
| | - Alexey S. Romanov
- International
Tomography Center SB RAS, 3A Institutskaya Street, 630090 Novosibirsk, Russia
- Novosibirsk
State University, 2 Pirogova
Street, 630090 Novosibirsk, Russia
| | - Oleg G. Salnikov
- International
Tomography Center SB RAS, 3A Institutskaya Street, 630090 Novosibirsk, Russia
- Novosibirsk
State University, 2 Pirogova
Street, 630090 Novosibirsk, Russia
| | - Vladimir V. Zhivonitko
- International
Tomography Center SB RAS, 3A Institutskaya Street, 630090 Novosibirsk, Russia
- Novosibirsk
State University, 2 Pirogova
Street, 630090 Novosibirsk, Russia
| | - Yu-Wen Chen
- Department
of Chemistry and Biochemistry, National
Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi 62102, Taiwan
| | - Danila A. Barskiy
- Department
of Radiology, Vanderbilt University Institute
of Imaging Science (VUIIS), 1161 21st Avenue South, Medical
Center North, AA-1105, Nashville, Tennessee 37232-2310, United States
- Department of Biomedical Engineering and Physics, Vanderbilt-Ingram Cancer Center (VICC), 1301 Medical Center Drive, Nashville, Tennessee 37232-2310, United States
| | - Eduard Y. Chekmenev
- Department
of Radiology, Vanderbilt University Institute
of Imaging Science (VUIIS), 1161 21st Avenue South, Medical
Center North, AA-1105, Nashville, Tennessee 37232-2310, United States
- Department of Biomedical Engineering and Physics, Vanderbilt-Ingram Cancer Center (VICC), 1301 Medical Center Drive, Nashville, Tennessee 37232-2310, United States
- Russian
Academy of Sciences, 14 Leninskiy Prospekt, 119991 Moscow, Russia
| | - Dennis W. Hwang
- Department
of Chemistry and Biochemistry, National
Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi 62102, Taiwan
| | - Kirill V. Kovtunov
- International
Tomography Center SB RAS, 3A Institutskaya Street, 630090 Novosibirsk, Russia
- Novosibirsk
State University, 2 Pirogova
Street, 630090 Novosibirsk, Russia
- E-mail:
| | - Igor V. Koptyug
- International
Tomography Center SB RAS, 3A Institutskaya Street, 630090 Novosibirsk, Russia
- Novosibirsk
State University, 2 Pirogova
Street, 630090 Novosibirsk, Russia
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78
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Barskiy DA, Salnikov OG, Romanov AS, Feldman MA, Coffey AM, Kovtunov KV, Koptyug IV, Chekmenev EY. NMR Spin-Lock Induced Crossing (SLIC) dispersion and long-lived spin states of gaseous propane at low magnetic field (0.05T). JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2017; 276:78-85. [PMID: 28152435 PMCID: PMC5452975 DOI: 10.1016/j.jmr.2017.01.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/17/2017] [Accepted: 01/19/2017] [Indexed: 05/22/2023]
Abstract
When parahydrogen reacts with propylene in low magnetic fields (e.g., 0.05T), the reaction product propane develops an overpopulation of pseudo-singlet nuclear spin states. We studied how the Spin-Lock Induced Crossing (SLIC) technique can be used to convert these pseudo-singlet spin states of hyperpolarized gaseous propane into observable magnetization and to detect 1H NMR signal directly at 0.05T. The theoretical simulation and experimental study of the NMR signal dependence on B1 power (SLIC amplitude) exhibits a well-resolved dispersion, which is induced by the spin-spin couplings in the eight-proton spin system of propane. We also measured the exponential decay time constants (TLLSS or TS) of these pseudo-singlet long-lived spin states (LLSS) by varying the time between hyperpolarized propane production and SLIC detection. We have found that, on average, TS is approximately 3 times longer than the corresponding T1 value under the same conditions in the range of pressures studied (up to 7.6atm). Moreover, TS may exceed 13s at pressures above 7atm in the gas phase. These results are in agreement with the previous reports, and they corroborate a great potential of long-lived hyperpolarized propane as an inhalable gaseous contrast agent for lung imaging and as a molecular tracer to study porous media using low-field NMR and MRI.
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Affiliation(s)
- Danila A Barskiy
- Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232, USA.
| | - Oleg G Salnikov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk, Russia; Novosibirsk State University, 2 Pirogova St., Novosibirsk, Russia
| | - Alexey S Romanov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk, Russia; Novosibirsk State University, 2 Pirogova St., Novosibirsk, Russia
| | - Matthew A Feldman
- Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232, USA
| | - Aaron M Coffey
- Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232, USA
| | - Kirill V Kovtunov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk, Russia; Novosibirsk State University, 2 Pirogova St., Novosibirsk, Russia
| | - Igor V Koptyug
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk, Russia; Novosibirsk State University, 2 Pirogova St., Novosibirsk, Russia
| | - Eduard Y Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN 37232, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Ingram Cancer Center (VICC), Vanderbilt University, Nashville, TN 37232, USA; Russian Academy of Sciences, Moscow, Russia.
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79
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Barskiy DA, Salnikov OG, Shchepin RV, Feldman MA, Coffey AM, Kovtunov KV, Koptyug IV, Chekmenev EY. NMR SLIC Sensing of Hydrogenation Reactions Using Parahydrogen in Low Magnetic Fields. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2016; 120:29098-29106. [PMID: 28066517 PMCID: PMC5204359 DOI: 10.1021/acs.jpcc.6b07555] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 10/26/2016] [Indexed: 05/12/2023]
Abstract
Parahydrogen-induced polarization (PHIP) is an NMR hyperpolarization technique that increases nuclear spin polarization by orders of magnitude, and it is particularly well-suited to study hydrogenation reactions. However, the use of high-field NMR spectroscopy is not always possible, especially in the context of potential industrial-scale reactor applications. On the other hand, the direct low-field NMR detection of reaction products with enhanced nuclear spin polarization is challenging due to near complete signal cancellation from nascent parahydrogen protons. We show that hydrogenation products prepared by PHIP can be irradiated with weak (on the order of spin-spin couplings of a few hertz) alternating magnetic field (called Spin-Lock Induced Crossing or SLIC) and consequently efficiently detected at low magnetic field (e.g., 0.05 T used here) using examples of several types of organic molecules containing a vinyl moiety. The detected hyperpolarized signals from several reaction products at tens of millimolar concentrations were enhanced by 10000-fold, producing NMR signals an order of magnitude greater than the background signal from protonated solvents.
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Affiliation(s)
- Danila A. Barskiy
- Vanderbilt
University Institute of Imaging Sciences, Nashville, Tennessee 37232, United States
| | - Oleg G. Salnikov
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
| | - Roman V. Shchepin
- Vanderbilt
University Institute of Imaging Sciences, Nashville, Tennessee 37232, United States
| | - Matthew A. Feldman
- Vanderbilt
University Institute of Imaging Sciences, Nashville, Tennessee 37232, United States
| | - Aaron M. Coffey
- Vanderbilt
University Institute of Imaging Sciences, Nashville, Tennessee 37232, United States
| | - Kirill V. Kovtunov
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
| | - Igor V. Koptyug
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Vanderbilt
University Institute of Imaging Sciences, Nashville, Tennessee 37232, United States
- Russian
Academy of Sciences, Moscow 119991, Russia
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80
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Cavallari E, Carrera C, Aime S, Reineri F. 13 C MR Hyperpolarization of Lactate by Using ParaHydrogen and Metabolic Transformation in Vitro. Chemistry 2016; 23:1200-1204. [PMID: 27870463 DOI: 10.1002/chem.201605329] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Indexed: 12/16/2022]
Abstract
Hyperpolarization of the 13 C magnetic resonance signal of l-[1-13 C]lactate has been obtained using the chemically based, cost-effective method called parahydrogen-induced polarization by means of side-arm hydrogenation (PHIP-SAH). Two ester derivatives of lactate were tested and the factors that determine the polarization level on the product have been investigated in detail. The metabolic conversion of hyperpolarized l-[1-13 C]lactate into pyruvate has been observed in vitro using lactate dehydrogenase (LDH) and in a cells lysate. From the acquisition of a series of 13 C NMR spectra, the metabolic build-up of the [1-13 C]pyruvate signal has been observed. These studies demonstrate that, even if the experimental set-up used for these PHIP-SAH hyperpolarization studies is still far from optimal, the attained polarization level is already sufficient to carry out in vitro metabolic studies.
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Affiliation(s)
- Eleonora Cavallari
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy
| | - Carla Carrera
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy
| | - Silvio Aime
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy.,Istituto Bioimmagini e Biostrutture del CNR, Sezione di Torino c/o Center of Molecular Imaging, Via Nizza 52, Torino, Italy
| | - Francesca Reineri
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy
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81
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Kovtunov KV, Barskiy DA, Shchepin RV, Salnikov OG, Prosvirin IP, Bukhtiyarov AV, Kovtunova LM, Bukhtiyarov VI, Koptyug IV, Chekmenev EY. Production of Pure Aqueous 13 C-Hyperpolarized Acetate by Heterogeneous Parahydrogen-Induced Polarization. Chemistry 2016; 22:16446-16449. [PMID: 27607402 PMCID: PMC5544125 DOI: 10.1002/chem.201603974] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Indexed: 12/18/2022]
Abstract
A supported metal catalyst was designed, characterized, and tested for aqueous phase heterogeneous hydrogenation of vinyl acetate with parahydrogen to produce 13 C-hyperpolarized ethyl acetate for potential biomedical applications. The Rh/TiO2 catalyst with a metal loading of 23.2 wt % produced strongly hyperpolarized 13 C-enriched ethyl acetate-1-13 C detected at 9.4 T. An approximately 14-fold 13 C signal enhancement was detected using circa 50 % parahydrogen gas without taking into account relaxation losses before and after polarization transfer by magnetic field cycling from nascent parahydrogen-derived protons to 13 C nuclei. This first observation of 13 C PHIP-hyperpolarized products over a supported metal catalyst in an aqueous medium opens up new possibilities for production of catalyst-free aqueous solutions of nontoxic hyperpolarized contrast agents for a wide range of biomolecules amenable to the parahydrogen induced polarization by side arm hydrogenation (PHIP-SAH) approach.
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Affiliation(s)
- Kirill V Kovtunov
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia.
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia.
| | - Danila A Barskiy
- Department of Radiology, Department of Biomedical Engineering, Department of Physics and Astronomy, Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, Tennessee, 37232-2310, USA
| | - Roman V Shchepin
- Department of Radiology, Department of Biomedical Engineering, Department of Physics and Astronomy, Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, Tennessee, 37232-2310, USA
| | - Oleg G Salnikov
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Igor P Prosvirin
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Andrey V Bukhtiyarov
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Larisa M Kovtunova
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Valerii I Bukhtiyarov
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk, 630090, Russia
| | - Igor V Koptyug
- Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia.
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia.
| | - Eduard Y Chekmenev
- Department of Radiology, Department of Biomedical Engineering, Department of Physics and Astronomy, Vanderbilt University Institute of Imaging Science (VUIIS), Nashville, Tennessee, 37232-2310, USA.
- Russian Academy of Sciences, Leninskiy Prospekt 14, 119991, Moscow, Russia.
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