1
|
Senanayake IM, Alam S, Kabir MSH, Petrilla AF, Siraj Z, Theis T, Chekmenev EY, Goodson BM. 15N SABRE-SHEATH and NMR/DFT Characterization of Amino-Metronidazole, a Metabolic Product of the Antibiotic and Prospective Hypoxia Contrast Agent Metronidazole. J Phys Chem B 2025; 129:1662-1669. [PMID: 39843250 PMCID: PMC11969678 DOI: 10.1021/acs.jpcb.4c07877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2025]
Abstract
The antibiotic metronidazole (MNZ) has gained interest as a potential MRI contrast agent for imaging hypoxia. 15N-labeled MNZ can be efficiently hyperpolarized via SABRE-SHEATH (Signal Amplification By Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei), but the envisioned MRI approach requires that MNZ rapidly undergoes structural changes in hypoxic environments with significant 15N frequency differences manifested in its downstream metabolic products. We have performed NMR studies of the anticipated metabolic product amino-MNZ (despite anticipated stability concerns) accompanied by computational density functional theory (DFT) studies to predict the 15N chemical shifts of different relevant species. Direct hyperpolarization of sparse naturally abundant 15N spins in amino-MNZ via SABRE-SHEATH (enhancement up to ∼9400 fold), along with 1H-decoupled 15N NMR, allowed comparison with both 15N3-MNZ and naturally abundant MNZ. The results show significant 15N shift differences that agree with the DFT predictions. Taken together, the results show that it should be possible to readily distinguish the parent MNZ from product amino-MNZ in envisioned MRI approaches at clinically relevant magnetic fields.
Collapse
Affiliation(s)
- Ishani M. Senanayake
- School of Chemical & Biomolecular Sciences, Southern Illinois University, Carbondale, Illinois, USA
| | - Shahabuddin Alam
- School of Chemical & Biomolecular Sciences, Southern Illinois University, Carbondale, Illinois, USA
| | - Mohammad S. H. Kabir
- Department of Chemistry, Karmanos Cancer Institute (KCI), Integrative Biosciences (Ibio), Wayne State University, Detroit, Michigan, USA
| | - Anthony F. Petrilla
- School of Chemical & Biomolecular Sciences, Southern Illinois University, Carbondale, Illinois, USA
| | - Zahid Siraj
- School of Chemical & Biomolecular Sciences, Southern Illinois University, Carbondale, Illinois, USA
| | - Thomas Theis
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Eduard Y. Chekmenev
- Department of Chemistry, Karmanos Cancer Institute (KCI), Integrative Biosciences (Ibio), Wayne State University, Detroit, Michigan, USA
| | - Boyd M. Goodson
- School of Chemical & Biomolecular Sciences, Southern Illinois University, Carbondale, Illinois, USA
| |
Collapse
|
2
|
Li S, Chu T. Preparation and bioevaluation of a novel 99mTc-labelled propylene amine oxime (PnAO) containing two 4-methyl-2-nitroimidazole groups as a promising tumor hypoxia imaging agent. Bioorg Med Chem Lett 2024; 106:129773. [PMID: 38677561 DOI: 10.1016/j.bmcl.2024.129773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 04/29/2024]
Abstract
Hypoxia is a common phenomenon in solid tumors, and its presence inhibits the efficacy of tumor chemotherapy and radiotherapy. Accurate measurement of hypoxia before tumor treatment is essential. Three propylene amine oxime (PnAO) derivatives with different substituents attached to 2-nitroimidazole were synthesized in the work, they are 3,3,9,9-tetramethyl-1,11-bis(4-bromo-2-nitro-1H-imidazol-1-yl)-4,8-diazaundecane-2,10-dione dioxime (Br2P2), 3,3,9,9-tetramethyl-1,11-bis(4-methyl-2-nitro-1H-imidazol-1-yl)-4,8-diazaundecane-2,10-dione dioxime (Me2P2) and 3,3,9,9-tetramethyl-1,11-bis(4,5-dimethyl-2-nitro-1H-imidazol-1-yl)-4,8-diazaundecane-2,10-dione dioxime (2Me2P2). The three compounds were radiolabeled with 99mTc to give three complexes([99mTc]Tc-Br2P2, [99mTc]Tc-Me2P2 and [99mTc]Tc-2Me2P2) with good in vitro stability. [99mTc]Tc-Me2P2 with a more suitable reduction potential had the highest hypoxic cellular uptake, compared with [99mTc]Tc-2P2 that have been previously reported, [99mTc]Tc-Br2P2 and [99mTc]Tc-2Me2P2. Biodistribution results in S180 tumor-bearing mice demonstrated that [99mTc]Tc-Me2P2 had the highest tumor-to-muscle (T/M) ratio (12.37 ± 1.16) at 2 h in the four complexes. Autoradiography and immunohistochemical staining results revealed that [99mTc]Tc-Me2P2 specifically targeted tumor hypoxic regions. The SPECT/CT imaging results showed that [99mTc]Tc-Me2P2 could target the tumor site. [99mTc]Tc-Me2P2 may become a potential hypoxia imaging agent.
Collapse
Affiliation(s)
- Shuo Li
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Taiwei Chu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| |
Collapse
|
3
|
Sviyazov SV, Burueva DB, Chukanov NV, Razumov IA, Chekmenev EY, Salnikov OG, Koptyug IV. 15N Hyperpolarization of Metronidazole Antibiotic in Aqueous Media Using Phase-Separated Signal Amplification by Reversible Exchange with Parahydrogen. J Phys Chem Lett 2024; 15:5382-5389. [PMID: 38738984 PMCID: PMC11151165 DOI: 10.1021/acs.jpclett.4c00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Metronidazole is a prospective hyperpolarized MRI contrast agent with potential hypoxia sensing utility for applications in cancer, stroke, neurodegenerative diseases, etc. We demonstrate a pilot procedure for production of ∼30 mM hyperpolarized [15N3]metronidazole in aqueous media by using a phase-separated SABRE-SHEATH hyperpolarization method, with nitrogen-15 polarization exceeding 2.2% on all three 15N sites achieved in less than 2 min. The 15N polarization T1 of ∼12 min is reported for the 15NO2 group at the clinically relevant field of 1.4 T in the aqueous phase, demonstrating a remarkably long lifetime of the hyperpolarized state. The produced aqueous solution of [15N3]metronidazole that contained only ∼100 μM of residual Ir was deemed biocompatible via validation through the MTT colorimetric test for assessing cell metabolic activity using human embryotic kidney HEK293T cells. This low-cost and ultrafast hyperpolarization procedure represents a major advance for the production of a biocompatible HP [15N3]metronidazole (and potentially other hyperpolarized drugs) formulation for MRI sensing applications.
Collapse
Affiliation(s)
- Sergey V. Sviyazov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Dudari B. Burueva
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
| | - Nikita V. Chukanov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Ivan A. Razumov
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
- Institute of Cytology and Genetics SB RAS, 10 Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
| | - Oleg G. Salnikov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
| | - Igor V. Koptyug
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
| |
Collapse
|
4
|
Pihlava L, Svensson PHW, Kukk E, Kooser K, De Santis E, Tõnisoo A, Käämbre T, André T, Akiyama T, Hessenthaler L, Giehr F, Björneholm O, Caleman C, Berholts M. Shell-dependent photofragmentation dynamics of a heavy-atom-containing bifunctional nitroimidazole radiosensitizer. Phys Chem Chem Phys 2024; 26:8879-8890. [PMID: 38426309 DOI: 10.1039/d4cp00367e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Radiation therapy uses ionizing radiation to break chemical bonds in cancer cells, thereby causing DNA damage and leading to cell death. The therapeutic effectiveness can be further increased by making the tumor cells more sensitive to radiation. Here, we investigate the role of the initial halogen atom core hole on the photofragmentation dynamics of 2-bromo-5-iodo-4-nitroimidazole, a potential bifunctional radiosensitizer. Bromine and iodine atoms were included in the molecule to increase the photoionization cross-section of the radiosensitizer at higher photon energies. The fragmentation dynamics of the molecule was studied experimentally in the gas phase using photoelectron-photoion-photoion coincidence spectroscopy and computationally using Born-Oppenheimer molecular dynamics. We observed significant changes between shallow core (I 4d, Br 3d) and deep core (I 3d) ionization in fragment formation and their kinetic energies. Despite the fact, that the ions ejected after deep core ionization have higher kinetic energies, we show that in a cellular environment, the ion spread is not much larger, keeping the damage well-localized.
Collapse
Affiliation(s)
- Lassi Pihlava
- Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland.
| | - Pamela H W Svensson
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Edwin Kukk
- Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland.
| | - Kuno Kooser
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| | - Emiliano De Santis
- Department of Chemistry - BMC, University of Uppsala, SE-75123 Uppsala, Sweden
| | - Arvo Tõnisoo
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| | - Tanel Käämbre
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| | - Tomas André
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Tomoko Akiyama
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Lisa Hessenthaler
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Flavia Giehr
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Olle Björneholm
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Carl Caleman
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
- Center for Free-Electron Laser Science, DESY, DE-22607 Hamburg, Germany
| | - Marta Berholts
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| |
Collapse
|
5
|
Guarin DO, Joshi SM, Samoilenko A, Kabir MSH, Hardy EE, Takahashi AM, Ardenkjaer-Larsen JH, Chekmenev EY, Yen YF. Development of Dissolution Dynamic Nuclear Polarization of [ 15 N 3 ]Metronidazole: A Clinically Approved Antibiotic. Angew Chem Int Ed Engl 2023; 62:e202219181. [PMID: 37247411 PMCID: PMC10524734 DOI: 10.1002/anie.202219181] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 05/12/2023] [Accepted: 05/26/2023] [Indexed: 05/31/2023]
Abstract
We report dissolution Dynamic Nuclear Polarization (d-DNP) of [15 N3 ]metronidazole ([15 N3 ]MNZ) for the first time. Metronidazole is a clinically approved antibiotic, which can be potentially employed as a hypoxia-sensing molecular probe using 15 N hyperpolarized (HP) nucleus. The DNP process is very efficient for [15 N3 ]MNZ with an exponential build-up constant of 13.8 min using trityl radical. After dissolution and sample transfer to a nearby 4.7 T Magnetic Resonance Imaging scanner, HP [15 N3 ]MNZ lasted remarkably long with T1 values up to 343 s and 15 N polarizations up to 6.4 %. A time series of HP [15 N3 ]MNZ images was acquired in vitro using a steady state free precession sequence on the 15 NO2 peak. The signal lasted over 13 min with notably long T2 of 20.5 s. HP [15 N3 ]MNZ was injected in the tail vein of a healthy rat, and dynamic spectroscopy was performed over the rat brain. The in vivo HP 15 N signals persisted over 70 s, demonstrating an unprecedented opportunity for in vivo studies.
Collapse
Affiliation(s)
- David O Guarin
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., MA 02129, Charlestown, USA
- Polarize ApS., Asmussens Alle 1, 1808, Frederiksberg, Denmak
| | - Sameer M Joshi
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, MI 48202, Detroit, USA
| | - Anna Samoilenko
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, MI 48202, Detroit, USA
| | - Mohammad S H Kabir
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, MI 48202, Detroit, USA
| | - Erin E Hardy
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., MA 02129, Charlestown, USA
| | - Atsush M Takahashi
- Department of Brain and Cognitive Sciences, McGovern Institute for Brain Research, Massachusetts Institute of Technology, MA 02139, Cambridge, USA
| | - Jan H Ardenkjaer-Larsen
- Polarize ApS., Asmussens Alle 1, 1808, Frederiksberg, Denmak
- Department of Health Technology, Technical University of Denmark, 348, Ørsteds Pl., 2800, Kongens Lyngby, Denmark
| | - Eduard Y Chekmenev
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, MI 48202, Detroit, USA
- Russian Academy of Sciences (RAS), 14 Leninskiy Prospekt, 119991, Moscow, Russia
| | - Yi-Fen Yen
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., MA 02129, Charlestown, USA
| |
Collapse
|
6
|
Campbell E, Jordan C, Gilmour R. Fluorinated carbohydrates for 18F-positron emission tomography (PET). Chem Soc Rev 2023; 52:3599-3626. [PMID: 37171037 PMCID: PMC10243284 DOI: 10.1039/d3cs00037k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Indexed: 05/13/2023]
Abstract
Carbohydrate diversity is foundational in the molecular literacy that regulates cellular function and communication. Consequently, delineating and leveraging this structure-function interplay continues to be a core research objective in the development of candidates for biomedical diagnostics. A totemic example is the ubiquity of 2-deoxy-2-[18F]-fluoro-D-glucose (2-[18F]-FDG) as a radiotracer for positron emission tomography (PET), in which metabolic trapping is harnessed. Building on this clinical success, more complex sugars with unique selectivities are gaining momentum in molecular recognition and personalised medicine: this reflects the opportunities that carbohydrate-specific targeting affords in a broader sense. In this Tutorial Review, key milestones in the development of 2-[18F]-FDG and related glycan-based radiotracers for PET are described, with their diagnostic functions, to assist in navigating this rapidly expanding field of interdisciplinary research.
Collapse
Affiliation(s)
- Emma Campbell
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 36, 48149, Münster, Germany.
- Cells in Motion Interfaculty Centre, Westfälische Wilhelms-Universität Münster, Röntgenstraße 16, 48149, Münster, Germany
| | - Christina Jordan
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 36, 48149, Münster, Germany.
- Cells in Motion Interfaculty Centre, Westfälische Wilhelms-Universität Münster, Röntgenstraße 16, 48149, Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 36, 48149, Münster, Germany.
- Cells in Motion Interfaculty Centre, Westfälische Wilhelms-Universität Münster, Röntgenstraße 16, 48149, Münster, Germany
| |
Collapse
|
7
|
Schwenck J, Sonanini D, Cotton JM, Rammensee HG, la Fougère C, Zender L, Pichler BJ. Advances in PET imaging of cancer. Nat Rev Cancer 2023:10.1038/s41568-023-00576-4. [PMID: 37258875 DOI: 10.1038/s41568-023-00576-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/17/2023] [Indexed: 06/02/2023]
Abstract
Molecular imaging has experienced enormous advancements in the areas of imaging technology, imaging probe and contrast development, and data quality, as well as machine learning-based data analysis. Positron emission tomography (PET) and its combination with computed tomography (CT) or magnetic resonance imaging (MRI) as a multimodality PET-CT or PET-MRI system offer a wealth of molecular, functional and morphological data with a single patient scan. Despite the recent technical advances and the availability of dozens of disease-specific contrast and imaging probes, only a few parameters, such as tumour size or the mean tracer uptake, are used for the evaluation of images in clinical practice. Multiparametric in vivo imaging data not only are highly quantitative but also can provide invaluable information about pathophysiology, receptor expression, metabolism, or morphological and functional features of tumours, such as pH, oxygenation or tissue density, as well as pharmacodynamic properties of drugs, to measure drug response with a contrast agent. It can further quantitatively map and spatially resolve the intertumoural and intratumoural heterogeneity, providing insights into tumour vulnerabilities for target-specific therapeutic interventions. Failure to exploit and integrate the full potential of such powerful imaging data may lead to a lost opportunity in which patients do not receive the best possible care. With the desire to implement personalized medicine in the cancer clinic, the full comprehensive diagnostic power of multiplexed imaging should be utilized.
Collapse
Affiliation(s)
- Johannes Schwenck
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University of Tübingen, Tübingen, Germany
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, Eberhard Karls University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) 'Image-Guided and Functionally Instructed Tumour Therapies', Eberhard Karls University, Tübingen, Germany
| | - Dominik Sonanini
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University of Tübingen, Tübingen, Germany
- Medical Oncology and Pulmonology, Department of Internal Medicine, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Jonathan M Cotton
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) 'Image-Guided and Functionally Instructed Tumour Therapies', Eberhard Karls University, Tübingen, Germany
| | - Hans-Georg Rammensee
- Cluster of Excellence iFIT (EXC 2180) 'Image-Guided and Functionally Instructed Tumour Therapies', Eberhard Karls University, Tübingen, Germany
- Department of Immunology, IFIZ Institute for Cell Biology, Eberhard Karls University of Tübingen, Tübingen, Germany
- German Cancer Research Center, German Cancer Consortium DKTK, Partner Site Tübingen, Tübingen, Germany
| | - Christian la Fougère
- Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, Eberhard Karls University of Tübingen, Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) 'Image-Guided and Functionally Instructed Tumour Therapies', Eberhard Karls University, Tübingen, Germany
- German Cancer Research Center, German Cancer Consortium DKTK, Partner Site Tübingen, Tübingen, Germany
| | - Lars Zender
- Cluster of Excellence iFIT (EXC 2180) 'Image-Guided and Functionally Instructed Tumour Therapies', Eberhard Karls University, Tübingen, Germany
- Medical Oncology and Pulmonology, Department of Internal Medicine, Eberhard Karls University of Tübingen, Tübingen, Germany
- German Cancer Research Center, German Cancer Consortium DKTK, Partner Site Tübingen, Tübingen, Germany
| | - Bernd J Pichler
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University of Tübingen, Tübingen, Germany.
- Cluster of Excellence iFIT (EXC 2180) 'Image-Guided and Functionally Instructed Tumour Therapies', Eberhard Karls University, Tübingen, Germany.
- German Cancer Research Center, German Cancer Consortium DKTK, Partner Site Tübingen, Tübingen, Germany.
| |
Collapse
|
8
|
Nakajima K, Sugikawa A, Yasui H, Higashikawa K, Suzuki C, Natsume T, Suzuki M, Takakura H, Tomita M, Takahashi S, Hirata K, Magata Y, Kuge Y, Ogawa M. In vivo imaging of acute physiological responses after treatment of cancer with near-infrared photoimmunotherapy. Mol Imaging Biol 2023:10.1007/s11307-023-01822-9. [PMID: 37193805 DOI: 10.1007/s11307-023-01822-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/18/2023]
Abstract
PURPOSE Near-infrared photoimmunotherapy (NIR-PIT) is a new cancer phototherapy using an antibody-photosensitizer conjugate (Ab-IR700). By NIR light irradiation, Ab-IR700 forms a water-insoluble aggregation on the plasma membrane of cancer cells, leading to lethal membrane damage of cancer cells with high selectivity. However, IR700 produces singlet oxygen, which induces non-selective inflammatory responses such as edema in normal tissues around the tumor. Understanding such treatment-emergent responses is important to minimize side effects and improve clinical outcomes. Thus, in this study, we evaluated physiological responses during NIR-PIT by magnetic resonance imaging (MRI) and positron emission tomography (PET). PROCEDURES Ab-IR700 was intravenously injected into tumor-bearing mice with two tumors on the right and left sides of the dorsum. At 24 h after injection, a tumor was irradiated with NIR light. Edema formation was examined by T1/T2/diffusion-weighted MRI and inflammation was investigated by PET with 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG). Because inflammation can increase vascular permeability via inflammatory mediators, we evaluated changes in oxygen levels in tumors using a hypoxia imaging probe, [18F]fluoromisonidazole ([18F]FMISO). RESULTS The uptake of [18F]FDG in the irradiated tumor was significantly decreased compared to the control tumor, indicating the impairment of glucose metabolism induced by NIR-PIT. MRI and [18F]FDG-PET images showed that inflammatory edema with [18F]FDG accumulation was present in the surrounding normal tissues of the irradiated tumor. Furthermore, [18F]FMISO accumulation in the center of the irradiated tumor was relatively low, indicating the enhancement of oxygen supply due to increased vascular permeability. In contrast, high [18F]FMISO accumulation was observed in the peripheral region, indicating enhancement of hypoxia in the region. This could be because inflammatory edema was formed in the surrounding normal tissues, which blocked blood flow to the tumor. CONCLUSIONS We successfully monitored inflammatory edema and changes in oxygen levels during NIR-PIT. Our findings on the acute physiological responses after light irradiation will help to develop effective measures to minimize the side effects in NIR-PIT.
Collapse
Affiliation(s)
- Kohei Nakajima
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
- Global Station for Biosurfaces and Drug Discovery, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Hokkaido, Japan
| | - Akiyo Sugikawa
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
| | - Hironobu Yasui
- Central Institute of Isotope Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kei Higashikawa
- Central Institute of Isotope Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Chie Suzuki
- Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Takahiro Natsume
- Promotion Center for Medical Collaboration & Intellectual Property, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Motofumi Suzuki
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
| | - Hideo Takakura
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
| | - Mayu Tomita
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
| | - Sachi Takahashi
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
| | - Kenji Hirata
- Department of Nuclear Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Diagnostic Imaging, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yasuhiro Magata
- Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yuji Kuge
- Central Institute of Isotope Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Mikako Ogawa
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan.
- Global Station for Biosurfaces and Drug Discovery, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Hokkaido, Japan.
| |
Collapse
|
9
|
Shah RP, Laeseke PF, Shin LK, Chin FT, Kothary N, Segall GM. Limitations of Fluorine 18 Fluoromisonidazole in Assessing Treatment-induced Tissue Hypoxia after Transcatheter Arterial Embolization of Hepatocellular Carcinoma: A Prospective Pilot Study. Radiol Imaging Cancer 2022; 4:e210094. [PMID: 35485937 PMCID: PMC9152693 DOI: 10.1148/rycan.210094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Purpose To determine the variance and correlation with tumor viability of fluorine 18 (18F) fluoromisonidazole (FMISO) uptake in hepatocellular carcinoma (HCC) prior to and after embolization treatment. Materials and Methods In this single-arm, single-center, prospective pilot study between September 2016 and March 2017, participants with at least one tumor measuring 1.5 cm or larger with imaging or histologic findings diagnostic for HCC were enrolled (five men; mean age, 68 years; age range, 61-76 years). Participants underwent 18F-FMISO PET/CT before and after bland embolization of HCC. A tumor-to-liver ratio (TLR) was calculated by using standardized uptake values of tumor and liver. The difference in mean TLR before and after treatment was compared by using a Wilcoxon rank sum test, and correlation between TLR and tumor viability was assessed by using the Spearman rank correlation coefficient. Results Four participants with five tumors were included in the final analysis. The median tumor diameter was 3.2 cm (IQR, 3.0-3.9 cm). The median TLR before treatment was 0.97 (IQR, 0.88-0.98), with a variance of 0.02, and the median TLR after treatment was 0.85 (IQR, 0.79-1), with a variance of 0.01; both findings indicate a narrow range of 18F-FMISO uptake in HCC. The Spearman rank correlation coefficient was 0.87, indicating a high correlation between change in TLR and nonviable tumor. Conclusion Although there was a correlation between change in TLR and response to treatment, the low signal-to-noise ratio of 18F-FMISO in the liver limited its use in HCC. Keywords: Molecular Imaging-Clinical Translation, Embolization, Abdomen/Gastrointestinal, Liver Clinical trial registration no. NCT02695628 © RSNA, 2022.
Collapse
Affiliation(s)
- Rajesh P Shah
- From the Department of Radiology, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave, MC 114, Palo Alto, CA 94304 (R.P.S., G.M.S.); Department of Radiology, Stanford University, Stanford, Calif (R.P.S., N.K., G.M.S.); Department of Radiology, University of Wisconsin-Madison, Madison, Wis (P.F.L.); Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, Ariz (L.K.S.); and Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, Calif (F.T.C.)
| | - Paul F Laeseke
- From the Department of Radiology, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave, MC 114, Palo Alto, CA 94304 (R.P.S., G.M.S.); Department of Radiology, Stanford University, Stanford, Calif (R.P.S., N.K., G.M.S.); Department of Radiology, University of Wisconsin-Madison, Madison, Wis (P.F.L.); Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, Ariz (L.K.S.); and Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, Calif (F.T.C.)
| | - Lewis K Shin
- From the Department of Radiology, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave, MC 114, Palo Alto, CA 94304 (R.P.S., G.M.S.); Department of Radiology, Stanford University, Stanford, Calif (R.P.S., N.K., G.M.S.); Department of Radiology, University of Wisconsin-Madison, Madison, Wis (P.F.L.); Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, Ariz (L.K.S.); and Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, Calif (F.T.C.)
| | - Frederick T Chin
- From the Department of Radiology, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave, MC 114, Palo Alto, CA 94304 (R.P.S., G.M.S.); Department of Radiology, Stanford University, Stanford, Calif (R.P.S., N.K., G.M.S.); Department of Radiology, University of Wisconsin-Madison, Madison, Wis (P.F.L.); Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, Ariz (L.K.S.); and Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, Calif (F.T.C.)
| | - Nishita Kothary
- From the Department of Radiology, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave, MC 114, Palo Alto, CA 94304 (R.P.S., G.M.S.); Department of Radiology, Stanford University, Stanford, Calif (R.P.S., N.K., G.M.S.); Department of Radiology, University of Wisconsin-Madison, Madison, Wis (P.F.L.); Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, Ariz (L.K.S.); and Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, Calif (F.T.C.)
| | - George M Segall
- From the Department of Radiology, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Ave, MC 114, Palo Alto, CA 94304 (R.P.S., G.M.S.); Department of Radiology, Stanford University, Stanford, Calif (R.P.S., N.K., G.M.S.); Department of Radiology, University of Wisconsin-Madison, Madison, Wis (P.F.L.); Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, Ariz (L.K.S.); and Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, Calif (F.T.C.)
| |
Collapse
|
10
|
Reduction of tumor hypoxia by anti-PD-1 therapy assessed using pimonidazole and [18F]FMISO. Nucl Med Biol 2022; 108-109:85-92. [DOI: 10.1016/j.nucmedbio.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/25/2022] [Accepted: 03/21/2022] [Indexed: 11/24/2022]
|
11
|
Yin L, Zhan J, Liao H, Qiu W, Hou W, Li S, Zhang J. Novel vandetanib derivative inhibited proliferation and promoted apoptosis of cancer cells under normoxia and hypoxia. Eur J Pharmacol 2022; 922:174907. [DOI: 10.1016/j.ejphar.2022.174907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 11/29/2022]
|
12
|
Cellular mechanism of action of 2-nitroimidzoles as hypoxia-selective therapeutic agents. Redox Biol 2022; 52:102300. [PMID: 35430547 PMCID: PMC9038562 DOI: 10.1016/j.redox.2022.102300] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/05/2022] [Accepted: 03/18/2022] [Indexed: 02/06/2023] Open
Abstract
Solid tumours are often poorly oxygenated, which confers resistance to standard treatment modalities. Targeting hypoxic tumours requires compounds, such as nitroimidazoles (NIs), equipped with the ability to reach and become activated within diffusion limited tumour niches. NIs become selectively entrapped in hypoxic cells through bioreductive activation, and have shown promise as hypoxia directed therapeutics. However, little is known about their mechanism of action, hindering the broader clinical usage of NIs. Iodoazomycin arabinofuranoside (IAZA) and fluoroazomycin arabinofuranoside (FAZA) are clinically validated 2-NI hypoxic radiotracers with excellent tumour uptake properties. Hypoxic cancer cells have also shown preferential susceptibility to IAZA and FAZA treatment, making them ideal candidates for an in-depth study in a therapeutic setting. Using a head and neck cancer model, we show that hypoxic cells display higher sensitivity to IAZA and FAZA, where the drugs alter cell morphology, compromise DNA replication, slow down cell cycle progression and induce replication stress, ultimately leading to cytostasis. Effects of IAZA and FAZA on target cellular macromolecules (DNA, proteins and glutathione) were characterized to uncover potential mechanism(s) of action. Covalent binding of these NIs was only observed to cellular proteins, but not to DNA, under hypoxia. While protein levels remained unaffected, catalytic activities of NI target proteins, such as the glycolytic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and the detoxification enzyme glutathione S-transferase (GST) were significantly curtailed in response to drug treatment under hypoxia. Intraperitoneal administration of IAZA was well-tolerated in mice and produced early (but transient) growth inhibition of subcutaneous mouse tumours. Hypoxic cells display preferential sensitivity to IAZA and FAZA. They alter cell morphology and induce cytostasis. IAZA and FAZA generate covalent adducts of proteins but not DNA. GAPDH and GST activities, but not protein levels, are significantly reduced.
Collapse
|
13
|
Song PN, Mansur A, Lu Y, Della Manna D, Burns A, Samuel S, Heinzman K, Lapi SE, Yang ES, Sorace AG. Modulation of the Tumor Microenvironment with Trastuzumab Enables Radiosensitization in HER2+ Breast Cancer. Cancers (Basel) 2022; 14:cancers14041015. [PMID: 35205763 PMCID: PMC8869800 DOI: 10.3390/cancers14041015] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/04/2022] [Accepted: 02/09/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Trastuzumab and radiation are used clinically to treat HER2-overexpressing breast cancers; however, the mechanistic synergy of anti-HER2 and radiation therapy has not been investigated. In this study, we identify that a subtherapeutic dose of trastuzumab sensitizes the tumor microenvironment to fractionated radiation. This results in longitudinal sustained response by triggering a state of innate immune activation through reduced DNA damage repair and increased tumor oxygenation. As positron emission tomography imaging can be used to longitudinally evaluate changes in tumor hypoxia, synergy of combination therapies is the result of both cellular and molecular changes in the tumor microenvironment. Abstract DNA damage repair and tumor hypoxia contribute to intratumoral cellular and molecular heterogeneity and affect radiation response. The goal of this study is to investigate anti-HER2-induced radiosensitization of the tumor microenvironment to enhance fractionated radiotherapy in models of HER2+ breast cancer. This is monitored through in vitro and in vivo studies of phosphorylated γ-H2AX, [18F]-fluoromisonidazole (FMISO)-PET, and transcriptomic analysis. In vitro, HER2+ breast cancer cell lines were treated with trastuzumab prior to radiation and DNA double-strand breaks (DSB) were quantified. In vivo, HER2+ human cell line or patient-derived xenograft models were treated with trastuzumab, fractionated radiation, or a combination and monitored longitudinally with [18F]-FMISO-PET. In vitro DSB analysis revealed that trastuzumab administered prior to fractionated radiation increased DSB. In vivo, trastuzumab prior to fractionated radiation significantly reduced hypoxia, as detected through decreased [18F]-FMISO SUV, synergistically improving long-term tumor response. Significant changes in IL-2, IFN-gamma, and THBS-4 were observed in combination-treated tumors. Trastuzumab prior to fractionated radiation synergistically increases radiotherapy in vitro and in vivo in HER2+ breast cancer which is independent of anti-HER2 response alone. Modulation of the tumor microenvironment, through increased tumor oxygenation and decreased DNA damage response, can be translated to other cancers with first-line radiation therapy.
Collapse
Affiliation(s)
- Patrick N. Song
- Department of Radiology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (P.N.S.); (Y.L.); (S.S.); (S.E.L.)
- Graduate Biomedical Sciences, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Ameer Mansur
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.M.); (A.B.); (K.H.)
| | - Yun Lu
- Department of Radiology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (P.N.S.); (Y.L.); (S.S.); (S.E.L.)
- Graduate Biomedical Sciences, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Deborah Della Manna
- Department of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (D.D.M.); (E.S.Y.)
| | - Andrew Burns
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.M.); (A.B.); (K.H.)
| | - Sharon Samuel
- Department of Radiology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (P.N.S.); (Y.L.); (S.S.); (S.E.L.)
| | - Katherine Heinzman
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.M.); (A.B.); (K.H.)
| | - Suzanne E. Lapi
- Department of Radiology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (P.N.S.); (Y.L.); (S.S.); (S.E.L.)
- O’Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Eddy S. Yang
- Department of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (D.D.M.); (E.S.Y.)
- O’Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Anna G. Sorace
- Department of Radiology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (P.N.S.); (Y.L.); (S.S.); (S.E.L.)
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.M.); (A.B.); (K.H.)
- O’Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Correspondence:
| |
Collapse
|
14
|
Brender JR, Saida Y, Devasahayam N, Krishna MC, Kishimoto S. Hypoxia Imaging As a Guide for Hypoxia-Modulated and Hypoxia-Activated Therapy. Antioxid Redox Signal 2022; 36:144-159. [PMID: 34428981 PMCID: PMC8856011 DOI: 10.1089/ars.2021.0176] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 08/16/2021] [Indexed: 01/03/2023]
Abstract
Significance: Oxygen imaging techniques, which can probe the spatiotemporal heterogeneity of tumor oxygenation, could be of significant clinical utility in radiation treatment planning and in evaluating the effectiveness of hypoxia-activated prodrugs. To fulfill these goals, oxygen imaging techniques should be noninvasive, quantitative, and capable of serial imaging, as well as having sufficient temporal resolution to detect the dynamics of tumor oxygenation to distinguish regions of chronic and acute hypoxia. Recent Advances: No current technique meets all these requirements, although all have strengths in certain areas. The current status of positron emission tomography (PET)-based hypoxia imaging, oxygen-enhanced magnetic resonance imaging (MRI), 19F MRI, and electron paramagnetic resonance (EPR) oximetry are reviewed along with their strengths and weaknesses for planning hypoxia-guided, intensity-modulated radiation therapy and detecting treatment response for hypoxia-targeted prodrugs. Critical Issues: Spatial and temporal resolution emerges as a major concern for these areas along with specificity and quantitative response. Although multiple oxygen imaging techniques have reached the investigative stage, clinical trials to test the therapeutic effectiveness of hypoxia imaging have been limited. Future Directions: Imaging elements of the redox environment besides oxygen by EPR and hyperpolarized MRI may have a significant impact on our understanding of the basic biology of the reactive oxygen species response and may extend treatment possibilities.
Collapse
Affiliation(s)
- Jeffrey R. Brender
- Radiation Biology Branch, Center for Cancer Research, National
Institutes of Health, Bethesda, Maryland, USA
| | - Yu Saida
- Radiation Biology Branch, Center for Cancer Research, National
Institutes of Health, Bethesda, Maryland, USA
| | - Nallathamby Devasahayam
- Radiation Biology Branch, Center for Cancer Research, National
Institutes of Health, Bethesda, Maryland, USA
| | - Murali C. Krishna
- Radiation Biology Branch, Center for Cancer Research, National
Institutes of Health, Bethesda, Maryland, USA
| | - Shun Kishimoto
- Radiation Biology Branch, Center for Cancer Research, National
Institutes of Health, Bethesda, Maryland, USA
| |
Collapse
|
15
|
Allott L, Chen C, Braga M, Leung SFJ, Wang N, Barnes C, Brickute D, Carroll L, Aboagye EO. Detecting hypoxia in vitro using 18F-pretargeted IEDDA "click" chemistry in live cells. RSC Adv 2021; 11:20335-20341. [PMID: 34178309 PMCID: PMC8182949 DOI: 10.1039/d1ra02482e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We have exemplified a pretargeted approach to interrogate hypoxia in live cells using radioactive bioorthogonal inverse electron demand Diels–Alder (IEDDA) “click” chemistry. Our novel 18F-tetrazine probe ([18F]FB-Tz) and 2-nitroimidazole-based TCO targeting molecule (8) showed statistically significant (P < 0.0001) uptake in hypoxic cells (ca. 90 %ID per mg) vs. normoxic cells (<10 %ID per mg) in a 60 min incubation of [18F]FB-Tz. This is the first time that an intracellularly targeted small-molecule for IEDDA “click” has been used in conjunction with a radioactive reporter molecule in live cells and may be a useful tool with far-reaching applicability for a variety of applications. Bioorthogonal IEDDA “click” can interrogate intracellular hypoxia using a radioactive reporter molecule.![]()
Collapse
Affiliation(s)
- Louis Allott
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK .,Positron Emission Tomography Research Centre, Faculty of Health Sciences, University of Hull Cottingham Road Kingston upon Hull HU6 7RX UK
| | - Cen Chen
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| | - Marta Braga
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| | - Sau Fung Jacob Leung
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| | - Ning Wang
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| | - Chris Barnes
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| | - Diana Brickute
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| | - Laurence Carroll
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK .,Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins Medical Institutions Baltimore Maryland USA
| | - Eric O Aboagye
- Comprehensive Cancer Imaging Centre, Faculty of Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Du Cane Road London W12 0NN UK
| |
Collapse
|
16
|
D'Alonzo RA, Gill S, Rowshanfarzad P, Keam S, MacKinnon KM, Cook AM, Ebert MA. In vivo noninvasive preclinical tumor hypoxia imaging methods: a review. Int J Radiat Biol 2021; 97:593-631. [PMID: 33703994 DOI: 10.1080/09553002.2021.1900943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/28/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022]
Abstract
Tumors exhibit areas of decreased oxygenation due to malformed blood vessels. This low oxygen concentration decreases the effectiveness of radiation therapy, and the resulting poor perfusion can prevent drugs from reaching areas of the tumor. Tumor hypoxia is associated with poorer prognosis and disease progression, and is therefore of interest to preclinical researchers. Although there are multiple different ways to measure tumor hypoxia and related factors, there is no standard for quantifying spatial and temporal tumor hypoxia distributions in preclinical research or in the clinic. This review compares imaging methods utilized for the purpose of assessing spatio-temporal patterns of hypoxia in the preclinical setting. Imaging methods provide varying levels of spatial and temporal resolution regarding different aspects of hypoxia, and with varying advantages and disadvantages. The choice of modality requires consideration of the specific experimental model, the nature of the required characterization and the availability of complementary modalities as well as immunohistochemistry.
Collapse
Affiliation(s)
- Rebecca A D'Alonzo
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, Australia
| | - Suki Gill
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, Australia
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, Australia
| | - Pejman Rowshanfarzad
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, Australia
| | - Synat Keam
- School of Medicine, The University of Western Australia, Crawley, Australia
| | - Kelly M MacKinnon
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, Australia
| | - Alistair M Cook
- School of Medicine, The University of Western Australia, Crawley, Australia
| | - Martin A Ebert
- School of Physics, Mathematics and Computing, The University of Western Australia, Crawley, Australia
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, Australia
- 5D Clinics, Claremont, Australia
| |
Collapse
|
17
|
Castellano A, Bailo M, Cicone F, Carideo L, Quartuccio N, Mortini P, Falini A, Cascini GL, Minniti G. Advanced Imaging Techniques for Radiotherapy Planning of Gliomas. Cancers (Basel) 2021; 13:1063. [PMID: 33802292 PMCID: PMC7959155 DOI: 10.3390/cancers13051063] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 02/07/2023] Open
Abstract
The accuracy of target delineation in radiation treatment (RT) planning of cerebral gliomas is crucial to achieve high tumor control, while minimizing treatment-related toxicity. Conventional magnetic resonance imaging (MRI), including contrast-enhanced T1-weighted and fluid-attenuated inversion recovery (FLAIR) sequences, represents the current standard imaging modality for target volume delineation of gliomas. However, conventional sequences have limited capability to discriminate treatment-related changes from viable tumors, owing to the low specificity of increased blood-brain barrier permeability and peritumoral edema. Advanced physiology-based MRI techniques, such as MR spectroscopy, diffusion MRI and perfusion MRI, have been developed for the biological characterization of gliomas and may circumvent these limitations, providing additional metabolic, structural, and hemodynamic information for treatment planning and monitoring. Radionuclide imaging techniques, such as positron emission tomography (PET) with amino acid radiopharmaceuticals, are also increasingly used in the workup of primary brain tumors, and their integration in RT planning is being evaluated in specialized centers. This review focuses on the basic principles and clinical results of advanced MRI and PET imaging techniques that have promise as a complement to RT planning of gliomas.
Collapse
Affiliation(s)
- Antonella Castellano
- Neuroradiology Unit, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.C.); (A.F.)
| | - Michele Bailo
- Department of Neurosurgery and Gamma Knife Radiosurgery, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.B.); (P.M.)
| | - Francesco Cicone
- Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, and Nuclear Medicine Unit, University Hospital “Mater Domini”, 88100 Catanzaro, Italy;
| | - Luciano Carideo
- National Cancer Institute, G. Pascale Foundation, 80131 Naples, Italy;
| | - Natale Quartuccio
- A.R.N.A.S. Ospedale Civico Di Cristina Benfratelli, 90144 Palermo, Italy;
| | - Pietro Mortini
- Department of Neurosurgery and Gamma Knife Radiosurgery, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (M.B.); (P.M.)
| | - Andrea Falini
- Neuroradiology Unit, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (A.C.); (A.F.)
| | - Giuseppe Lucio Cascini
- Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, and Nuclear Medicine Unit, University Hospital “Mater Domini”, 88100 Catanzaro, Italy;
| | - Giuseppe Minniti
- Radiation Oncology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, 53100 Siena, Italy;
- IRCCS Neuromed, 86077 Pozzilli (IS), Italy
| |
Collapse
|
18
|
Gertsenshteyn I, Giurcanu M, Vaupel P, Halpern H. Biological validation of electron paramagnetic resonance (EPR) image oxygen thresholds in tissue. J Physiol 2021; 599:1759-1767. [PMID: 32506448 PMCID: PMC7719598 DOI: 10.1113/jp278816] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/26/2020] [Indexed: 12/17/2022] Open
Abstract
Measuring molecular oxygen levels in vivo has been the cornerstone of understanding the effects of hypoxia in normal tissues and malignant tumors. Here we discuss the advances in a variety of partial pressure of oxygen ( P O 2 ) measurements and imaging techniques and relevant oxygen thresholds. A focus on electron paramagnetic resonance (EPR) imaging shows the validation of treating hypoxic tumours with a threshold of P O 2 ≤ 10 Torr, and demonstrates utility for in vivo oxygen imaging, as well as its current and future role in cancer studies.
Collapse
Affiliation(s)
- Inna Gertsenshteyn
- Department of Radiology, University of Chicago, IL, USA
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL, USA
| | - Mihai Giurcanu
- Department of Public Health Sciences, University of Chicago, IL, USA
| | - Peter Vaupel
- Department of Radiation Oncology, Medical Center, University of Freiburg, Germany
- German Cancer Consortium (DKTK), Partner site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Howard Halpern
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL, USA
| |
Collapse
|
19
|
Shimizu Y, Nakai Y, Iikuni S, Watanabe H, Nakamoto Y, Ono M. Synthesis and evaluation of gallium-68-labeled nitroimidazole-based imaging probes for PET diagnosis of tumor hypoxia. Ann Nucl Med 2021; 35:360-369. [PMID: 33423155 DOI: 10.1007/s12149-020-01573-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/27/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE In this study, we designed and synthesized four novel 68Ga-radiolabeled compounds ([68Ga]DN-3, [68Ga]DN-4, [68Ga]NN-3, and [68Ga]NN-4) composed of a nitroimidazole and two types of bifunctional chelates (DOTA or NOTA) via several alkyl linkers of different length. Then, we evaluated their properties as hypoxia imaging probes for positron emission tomography (PET) compared with conventional compounds ([68Ga]DN-2 and [68Ga]NN-2). METHODS The precursors of 68Ga-radiolabeled compounds were synthesized through a two-step reaction, and then reacted with 68GaCl3 to be 68Ga-radiolabeled compounds. FaDu cells were treated with 68Ga-radiolabeled compounds and then incubated under normoxic (21% O2) or hypoxic (1% O2) conditions. The radioactivity of these cells was measured 2 h after incubation. The biodistribution and PET/CT imaging of 68Ga-radiolabeled compounds in FaDu-bearing Balb/c nude mice were evaluated 2 h after intravenous injection. RESULTS The 68Ga-radiolabeled compounds were synthesized with radiochemical purities over 95%. In the in vitro study, the levels of 68Ga-radiolabeled compounds were significantly higher in hypoxic cells than in normoxic cells. In hypoxic cells, the compounds we designed in this study demonstrated higher accumulation than the conventional compounds. In the in vivo biodistribution study, [68Ga]DN-3 exhibited the highest accumulation in tumor. In the in vivo PET/CT imaging study, the tumor tissues of the FaDu-xenografted mice were visualized at 2 h after intravenous administration of 68Ga-radiolabeled compounds. CONCLUSIONS Our study suggested that the length of the linkers connecting nitroimidazole to a bifunctional chelate affect PET imaging of hypoxic tumors with 68Ga-radiolabeled compounds.
Collapse
Affiliation(s)
- Yoichi Shimizu
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Yukihiro Nakai
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shimpei Iikuni
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hiroyuki Watanabe
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yuji Nakamoto
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masahiro Ono
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| |
Collapse
|
20
|
Gertsenshteyn I, Epel B, Barth E, Leoni L, Markiewicz E, Tsai HM, Fan X, Giurcanu M, Bodero D, Zamora M, Sundramoorthy S, Kim H, Freifelder R, Bhuiyan M, Kucharski A, Karczmar G, Kao CM, Halpern H, Chen CT. Improving Tumor Hypoxia Location in 18F-Misonidazole PET with Dynamic Contrast-enhanced MRI Using Quantitative Electron Paramagnetic Resonance Partial Oxygen Pressure Images. Radiol Imaging Cancer 2021; 3:e200104. [PMID: 33817651 PMCID: PMC8011450 DOI: 10.1148/rycan.2021200104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 01/30/2021] [Accepted: 02/09/2021] [Indexed: 11/11/2022]
Abstract
Purpose To enhance the spatial accuracy of fluorine 18 (18F) misonidazole (MISO) PET imaging of hypoxia by using dynamic contrast-enhanced (DCE) MR images as a basis for modifying PET images and by using electron paramagnetic resonance (EPR) partial oxygen pressure (pO2) as the reference standard. Materials and Methods Mice (n = 10) with leg-borne MCa4 mammary carcinomas underwent EPR imaging, T2-weighted and DCE MRI, and 18F-MISO PET/CT. Images were registered to the same space for analysis. The thresholds of hypoxia for PET and EPR images were tumor-to-muscle ratios greater than or equal to 2.2 mm Hg and less than or equal to 14 mm Hg, respectively. The Dice similarity coefficient (DSC) and Hausdorff distance (d H ) were used to quantify the three-dimensional overlap of hypoxia between pO2 EPR and 18F-MISO PET images. A training subset (n = 6) was used to calculate optimal DCE MRI weighting coefficients to relate EPR to the PET signal; the group average weights were then applied to all tumors (from six training mice and four test mice). The DSC and d H were calculated before and after DCE MRI-corrected PET images were obtained to quantify the improvement in overlap with EPR pO2 images for measuring tumor hypoxia. Results The means and standard deviations of the DSC and d H between hypoxic regions in original PET and EPR images were 0.35 mm ± 0.23 and 5.70 mm ± 1.7, respectively, for images of all 10 mice. After implementing a preliminary DCE MRI correction to PET data, the DSC increased to 0.86 mm ± 0.18 and the d H decreased to 2.29 mm ± 0.70, showing significant improvement (P < .001) for images of all 10 mice. Specifically, for images of the four independent test mice, the DSC improved with correction from 0.19 ± 0.28 to 0.80 ± 0.29 (P = .02), and the d H improved from 6.40 mm ± 2.5 to 1.95 mm ± 0.63 (P = .01). Conclusion Using EPR information as a reference standard, DCE MRI information can be used to correct 18F-MISO PET information to more accurately reflect areas of hypoxia.Keywords: Animal Studies, Molecular Imaging, Molecular Imaging-Cancer, PET/CT, MR-Dynamic Contrast Enhanced, MR-Imaging, PET/MR, Breast, Oncology, Tumor Mircoenvironment, Electron Paramagnetic ResonanceSupplemental material is available for this article.© RSNA, 2021.
Collapse
Affiliation(s)
- Inna Gertsenshteyn
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Boris Epel
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Eugene Barth
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Lara Leoni
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Erica Markiewicz
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Hsiu-Ming Tsai
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Xiaobing Fan
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Mihai Giurcanu
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Darwin Bodero
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Marta Zamora
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Subramanian Sundramoorthy
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Heejong Kim
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Richard Freifelder
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Mohammed Bhuiyan
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Anna Kucharski
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Gregory Karczmar
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Chien-Min Kao
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Howard Halpern
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| | - Chin-Tu Chen
- From the Department of Radiology (I.G., X.F., H.K., R.F., M.B., A.K., G.K., C.M.K., C.T.C.), National Institutes of Health Center for Electron Paramagnetic Resonance Imaging in Vivo Physiology (I.G., B.E., E.B., D.B., S.S., H.H.), Department of Radiation and Cellular Oncology (I.G., B.E., E.B., D.B., H.H.), Integrated Small Animal Imaging Research Resource (L.L., E.M., H.M.T., X.F., D.B., M.Z., C.M.K., C.T.C.), and Department of Public Health Sciences (M.G.), University of Chicago, 5841 S Maryland Ave, MC-2026, Chicago, IL 60637
| |
Collapse
|
21
|
Kim H, Epel B, Sundramoorthy S, Tsai HM, Barth E, Gertsenshteyn I, Halpern H, Hua Y, Xie Q, Chen CT, Kao CM. Development of a PET/EPRI combined imaging system for assessing tumor hypoxia. JOURNAL OF INSTRUMENTATION : AN IOP AND SISSA JOURNAL 2021; 16:P03031. [PMID: 33868448 PMCID: PMC8045988 DOI: 10.1088/1748-0221/16/03/p03031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Precise quantitative delineation of tumor hypoxia is essential in radiation therapy treatment planning to improve the treatment efficacy by targeting hypoxic sub-volumes. We developed a combined imaging system of positron emission tomography (PET) and electron para-magnetic resonance imaging (EPRI) of molecular oxygen to investigate the accuracy of PET imaging in assessing tumor hypoxia. The PET/EPRI combined imaging system aims to use EPRI to precisely measure the oxygen partial pressure in tissues. This will evaluate the validity of PET hypoxic tumor imaging by (near) simultaneously acquired EPRI as ground truth. The combined imaging system was constructed by integrating a small animal PET scanner (inner ring diameter 62 mm and axial field of view 25.6 mm) and an EPRI subsystem (field strength 25 mT and resonant frequency 700 MHz). The compatibility between the PET and EPRI subsystems were tested with both phantom and animal imaging. Hypoxic imaging on a tumor mouse model using 18F-fluoromisonidazole radio-tracer was conducted with the developed PET/EPRI system. We report the development and initial imaging results obtained from the PET/EPRI combined imaging system.
Collapse
Affiliation(s)
- H Kim
- Department of Radiology, University of Chicago, Chicago, IL 60637
| | - B Epel
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL 60637
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL 60637
| | - S Sundramoorthy
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL 60637
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL 60637
| | - H-M Tsai
- Department of Radiology, University of Chicago, Chicago, IL 60637
| | - E Barth
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL 60637
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL 60637
| | - I Gertsenshteyn
- Department of Radiology, University of Chicago, Chicago, IL 60637
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL 60637
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL 60637
| | - H Halpern
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL 60637
- Center for EPR Imaging In Vivo Physiology, University of Chicago, Chicago, IL 60637
| | - Y Hua
- Raycan Technology Co, Ltd., Suzhou, Jiangsu, China
| | - Q Xie
- Huazhong University of Science and Technology, Biomedical Engineering Department, Wuhan, Hubei, China
| | - C-T Chen
- Department of Radiology, University of Chicago, Chicago, IL 60637
| | - C-M Kao
- Department of Radiology, University of Chicago, Chicago, IL 60637
| |
Collapse
|
22
|
Salnikov OG, Chukanov NV, Svyatova A, Trofimov IA, Kabir MSH, Gelovani JG, Kovtunov KV, Koptyug IV, Chekmenev EY. 15 N NMR Hyperpolarization of Radiosensitizing Antibiotic Nimorazole by Reversible Parahydrogen Exchange in Microtesla Magnetic Fields. Angew Chem Int Ed Engl 2021; 60:2406-2413. [PMID: 33063407 PMCID: PMC7855180 DOI: 10.1002/anie.202011698] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Indexed: 02/03/2023]
Abstract
Nimorazole belongs to the imidazole-based family of antibiotics to fight against anaerobic bacteria. Moreover, nimorazole is now in Phase 3 clinical trial in Europe for potential use as a hypoxia radiosensitizer for treatment of head and neck cancers. We envision the use of [15 N3 ]nimorazole as a theragnostic hypoxia contrast agent that can be potentially deployed in the next-generation MRI-LINAC systems. Herein, we report the first steps to create long-lasting (for tens of minutes) hyperpolarized state on three 15 N sites of [15 N3 ]nimorazole with T1 of up to ca. 6 minutes. The nuclear spin polarization was boosted by ca. 67000-fold at 1.4 T (corresponding to P15N of 3.2 %) by 15 N-15 N spin-relayed SABRE-SHEATH hyperpolarization technique, relying on simultaneous exchange of [15 N3 ]nimorazole and parahydrogen on polarization transfer Ir-IMes catalyst. The presented results pave the way to efficient spin-relayed SABRE-SHEATH hyperpolarization of a wide range of imidazole-based antibiotics and chemotherapeutics.
Collapse
Affiliation(s)
- Oleg G Salnikov
- Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., 630090, Novosibirsk, Russia
- International Tomography Center SB RAS, 3A Institutskaya St., 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090, Novosibirsk, Russia
| | - Nikita V Chukanov
- International Tomography Center SB RAS, 3A Institutskaya St., 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090, Novosibirsk, Russia
| | - Alexandra Svyatova
- International Tomography Center SB RAS, 3A Institutskaya St., 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090, Novosibirsk, Russia
| | - Ivan A Trofimov
- International Tomography Center SB RAS, 3A Institutskaya St., 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090, Novosibirsk, Russia
| | - Mohammad S H Kabir
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI, 48202, USA
| | - Juri G Gelovani
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI, 48202, USA
- College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Kirill V Kovtunov
- International Tomography Center SB RAS, 3A Institutskaya St., 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090, Novosibirsk, Russia
| | - Igor V Koptyug
- International Tomography Center SB RAS, 3A Institutskaya St., 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., 630090, Novosibirsk, Russia
| | - Eduard Y Chekmenev
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI, 48202, USA
- Russian Academy of Sciences (RAS), 14 Leninskiy Prospekt, 119991, Moscow, Russia
| |
Collapse
|
23
|
Shimizu Y, Nakai Y, Watanabe H, Iikuni S, Ono M, Saji H, Kuge Y, Saga T, Nakamoto Y. Increased [ 18F]FMISO accumulation under hypoxia by multidrug-resistant protein 1 inhibitors. EJNMMI Res 2021; 11:9. [PMID: 33492449 PMCID: PMC7835267 DOI: 10.1186/s13550-021-00752-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/11/2021] [Indexed: 11/30/2022] Open
Abstract
Background [18F]Fluoromisonidazole ([18F]FMISO) is a PET imaging probe widely used for the detection of hypoxia. We previously reported that [18F]FMISO is metabolized to the glutathione conjugate of the reduced form in hypoxic cells. In addition, we found that the [18F]FMISO uptake level varied depending on the cellular glutathione conjugation and excretion ability such as enzyme activity of glutathione-S-transferase and expression levels of multidrug resistance-associated protein 1 (MRP1, an efflux transporter), in addition to the cellular hypoxic state. In this study, we evaluated whether MRP1 activity affected [18F]FMISO PET imaging. Methods FaDu human pharyngeal squamous cell carcinoma cells were pretreated with MRP1 inhibitors (cyclosporine A, lapatinib, or MK-571) for 1 h, incubated with [18F]FMISO for 4 h under hypoxia, and their radioactivity was then measured. FaDu tumor-bearing mice were intravenously injected with [18F]FMISO, and PET/CT images were acquired at 4 h post-injection (1st PET scan). Two days later, the same mice were pretreated with MRP1 inhibitors (cyclosporine A, lapatinib, or MK-571) for 1 h, and PET/CT images were acquired (2nd PET scan). Results FaDu cells pretreated with MRP1 inhibitors exhibited significantly higher radioactivity than those without inhibitor treatment (cyclosporine A: 6.91 ± 0.27, lapatinib: 10.03 ± 0.47, MK-571: 10.15 ± 0.44%dose/mg protein, p < 0.01). In the in vivo PET study, the SUVmean ratio in tumors [calculated as after treatment (2nd PET scan)/before treatment of MRP1 inhibitors (1st PET scan)] of the mice treated with MRP1 inhibitors was significantly higher than those of control mice (cyclosporine A: 2.6 ± 0.7, lapatinib: 2.2 ± 0.7, MK-571: 2.2 ± 0.7, control: 1.2 ± 0.2, p < 0.05). Conclusion In this study, we revealed that MRP1 inhibitors increase [18F]FMISO accumulation in hypoxic cells. This suggests that [18F]FMISO-PET imaging is affected by MRP1 inhibitors independent of the hypoxic state.
Collapse
Affiliation(s)
- Yoichi Shimizu
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan. .,Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan.
| | - Yukihiro Nakai
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Hiroyuki Watanabe
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Shimpei Iikuni
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Masahiro Ono
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Hideo Saji
- Department of Patho-Functional Bioanalysis, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Yuji Kuge
- Central Institute of Isotope Science, Hokkaido University, Sapporo, 060-0815, Japan
| | - Tsuneo Saga
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Yuji Nakamoto
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoinkawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| |
Collapse
|
24
|
Salnikov OG, Chukanov NV, Svyatova A, Trofimov IA, Kabir MSH, Gelovani JG, Kovtunov KV, Koptyug IV, Chekmenev EY. 15
N NMR Hyperpolarization of Radiosensitizing Antibiotic Nimorazole by Reversible Parahydrogen Exchange in Microtesla Magnetic Fields. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011698] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Oleg G. Salnikov
- Boreskov Institute of Catalysis SB RAS 5 Acad. Lavrentiev Pr. 630090 Novosibirsk Russia
- International Tomography Center SB RAS 3A Institutskaya St. 630090 Novosibirsk Russia
- Department of Natural Sciences Novosibirsk State University 2 Pirogova St. 630090 Novosibirsk Russia
| | - Nikita V. Chukanov
- International Tomography Center SB RAS 3A Institutskaya St. 630090 Novosibirsk Russia
- Department of Natural Sciences Novosibirsk State University 2 Pirogova St. 630090 Novosibirsk Russia
| | - Alexandra Svyatova
- International Tomography Center SB RAS 3A Institutskaya St. 630090 Novosibirsk Russia
- Department of Natural Sciences Novosibirsk State University 2 Pirogova St. 630090 Novosibirsk Russia
| | - Ivan A. Trofimov
- International Tomography Center SB RAS 3A Institutskaya St. 630090 Novosibirsk Russia
- Department of Natural Sciences Novosibirsk State University 2 Pirogova St. 630090 Novosibirsk Russia
| | - Mohammad S. H. Kabir
- Department of Chemistry Integrative Biosciences (Ibio) Karmanos Cancer Institute (KCI) Wayne State University Detroit MI 48202 USA
| | - Juri G. Gelovani
- Department of Chemistry Integrative Biosciences (Ibio) Karmanos Cancer Institute (KCI) Wayne State University Detroit MI 48202 USA
- College of Medicine and Health Sciences United Arab Emirates University Al Ain United Arab Emirates
| | - Kirill V. Kovtunov
- International Tomography Center SB RAS 3A Institutskaya St. 630090 Novosibirsk Russia
- Department of Natural Sciences Novosibirsk State University 2 Pirogova St. 630090 Novosibirsk Russia
| | - Igor V. Koptyug
- International Tomography Center SB RAS 3A Institutskaya St. 630090 Novosibirsk Russia
- Department of Natural Sciences Novosibirsk State University 2 Pirogova St. 630090 Novosibirsk Russia
| | - Eduard Y. Chekmenev
- Department of Chemistry Integrative Biosciences (Ibio) Karmanos Cancer Institute (KCI) Wayne State University Detroit MI 48202 USA
- Russian Academy of Sciences (RAS) 14 Leninskiy Prospekt 119991 Moscow Russia
| |
Collapse
|
25
|
Scarpelli ML, Healey DR, Fuentes A, Kodibagkar VD, Quarles CC. Correlation of Tumor Hypoxia Metrics Derived from 18F-Fluoromisonidazole Positron Emission Tomography and Pimonidazole Fluorescence Images of Optically Cleared Brain Tissue. Tomography 2020; 6:379-388. [PMID: 33364428 PMCID: PMC7744194 DOI: 10.18383/j.tom.2020.00046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
18F-fluoromisonidazole (FMISO) positron emission tomography (PET) is a widely used noninvasive imaging modality for assessing hypoxia. We describe the first spatial comparison of FMISO PET with an ex vivo reference standard for hypoxia across whole tumor volumes. Eighteen rats were orthotopically implanted with C6 or 9L brain tumors and made to undergo FMISO PET scanning. Whole brains were excised, sliced into 1-mm-thick sections, optically cleared, and fluorescently imaged for pimonidazole using an in vivo imaging system. FMISO maximum tumor uptake, maximum tumor-to-cerebellar uptake (TCmax), and hypoxic fraction (extracted 110 minutes after FMISO injection) were correlated with analogous metrics derived from pimonidazole fluorescence images. FMISO SUVmax was not significantly different between C6 and 9L brain tumors (P = .70), whereas FMISO TCmax and hypoxic fraction were significantly greater for C6 tumors (P < .01). FMISO TCmax was significantly correlated with the maximum tumor pimonidazole intensity (ρ = 0.76, P < .01), whereas FMISO SUVmax was not. FMISO tumor hypoxic fraction was significantly correlated with the pimonidazole-derived hypoxic fraction (ρ = 0.78, P < .01). Given that FMISO TCmax and tumor hypoxic fraction had strong correlations with the pimonidazole reference standard, these metrics may offer more reliable measures of tumor hypoxia than conventional PET uptake metrics (SUVmax). The voxel-wise correlation between FMISO uptake and pimonidazole intensity for a given tumor was strongly dependent on the tumor's TCmax (ρ = 0.81, P < .01) and hypoxic fraction (ρ = 0.85, P < .01), indicating PET measurements within individual voxels showed greater correlation with pimonidazole reference standard in tumors with greater hypoxia.
Collapse
Affiliation(s)
- Matthew L. Scarpelli
- Barrow Neuroimaging Innovation Center, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ; and
| | - Debbie R. Healey
- Barrow Neuroimaging Innovation Center, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ; and
| | - Alberto Fuentes
- Barrow Neuroimaging Innovation Center, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ; and
| | - Vikram D. Kodibagkar
- Barrow Neuroimaging Innovation Center, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ; and
| | - C. Chad Quarles
- Barrow Neuroimaging Innovation Center, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ; and
| |
Collapse
|
26
|
Birchall JR, Kabir MSH, Salnikov OG, Chukanov NV, Svyatova A, Kovtunov KV, Koptyug IV, Gelovani JG, Goodson BM, Pham W, Chekmenev EY. Quantifying the effects of quadrupolar sinks via 15N relaxation dynamics in metronidazoles hyperpolarized via SABRE-SHEATH. Chem Commun (Camb) 2020; 56:9098-9101. [PMID: 32661534 PMCID: PMC7441520 DOI: 10.1039/d0cc03994b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
15N spin-lattice relaxation dynamics in metronidazole-15N3 and metronidazole-15N2 isotopologues are studied for rational design of 15N-enriched biomolecules for signal amplification by reversible exchange in microtesla fields. 15N relaxation dynamics mapping reveals the deleterious effects of interactions with the polarization transfer catalyst and a quadrupolar 14N nucleus within the spin-relayed 15N-15N network.
Collapse
Affiliation(s)
- Jonathan R Birchall
- Department of Chemistry, Integrative Biosciences (Ibio), Wayne State University, Karmanos Cancer Institute (KCI), Detroit, Michigan 48202, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
on the behalf of Young AIMN Working Group, Riccardo L, Natale Q, Pierpaolo A, Domenico A, Maria G, Rexhep D, Francesco B, Sergio B. 18F-FMISO PET imaging: insights over MRI in patients with glioma. Clin Transl Imaging 2020; 8:3-10. [DOI: 10.1007/s40336-019-00353-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/17/2019] [Indexed: 02/07/2023]
|
28
|
Wang L, Dietz C, Zhou F, Erfanzadeh M, Zhu Q, Smith MB, Yao X. Treasure hunt for peptides with undefined chemical modifications: Proteomics identification of differential albumin adducts of 2-nitroimidazole-indocyanine green in hypoxic tumor. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4376. [PMID: 31128078 DOI: 10.1002/jms.4376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/07/2019] [Accepted: 05/13/2019] [Indexed: 06/09/2023]
Abstract
2-Nitroimidazole is a well-known chemical probe targeting hypoxic environments of solid tumors, and its derivatives are widely used as imaging agents to investigate tissue and tumor hypoxia. However, the underlying chemistry for the hypoxia-detection capability of 2-nitroimidazole is still unclear. In this study, we deployed a biotin conjugate of 2-nitroimidazole-indocyanine green (2-nitro-ICG) for the investigation of in vivo hypoxia-probing mechanism of 2-nitro-ICG compounds. By implementing mass spectrometry-based proteomics and exhaustive data mining, we report that 2-nitro-ICG and its fragments modify mouse serum albumin as the primary protein target but at two structurally distinct sites and possibly via two different mechanisms. The identification of probe-modified peptides not only contributes to the understanding of the in vivo metabolism of 2-nitroimidazole compounds but also demonstrates a competent analytical workflow that enables the search for peptides with undefined modifications in complex proteome digests.
Collapse
Affiliation(s)
- Lei Wang
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269
| | - Christopher Dietz
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269
| | - Feifei Zhou
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269
| | - Mohsen Erfanzadeh
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269
| | - Quing Zhu
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63130
| | - Michael B Smith
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269
| | - Xudong Yao
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269
| |
Collapse
|
29
|
de Maar JS, Sofias AM, Porta Siegel T, Vreeken RJ, Moonen C, Bos C, Deckers R. Spatial heterogeneity of nanomedicine investigated by multiscale imaging of the drug, the nanoparticle and the tumour environment. Am J Cancer Res 2020; 10:1884-1909. [PMID: 32042343 PMCID: PMC6993242 DOI: 10.7150/thno.38625] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/13/2019] [Indexed: 02/07/2023] Open
Abstract
Genetic and phenotypic tumour heterogeneity is an important cause of therapy resistance. Moreover, non-uniform spatial drug distribution in cancer treatment may cause pseudo-resistance, meaning that a treatment is ineffective because the drug does not reach its target at sufficient concentrations. Together with tumour heterogeneity, non-uniform drug distribution causes “therapy heterogeneity”: a spatially heterogeneous treatment effect. Spatial heterogeneity in drug distribution occurs on all scales ranging from interpatient differences to intratumour differences on tissue or cellular scale. Nanomedicine aims to improve the balance between efficacy and safety of drugs by targeting drug-loaded nanoparticles specifically to tumours. Spatial heterogeneity in nanoparticle and payload distribution could be an important factor that limits their efficacy in patients. Therefore, imaging spatial nanoparticle distribution and imaging the tumour environment giving rise to this distribution could help understand (lack of) clinical success of nanomedicine. Imaging the nanoparticle, drug and tumour environment can lead to improvements of new nanotherapies, increase understanding of underlying mechanisms of heterogeneous distribution, facilitate patient selection for nanotherapies and help assess the effect of treatments that aim to reduce heterogeneity in nanoparticle distribution. In this review, we discuss three groups of imaging modalities applied in nanomedicine research: non-invasive clinical imaging methods (nuclear imaging, MRI, CT, ultrasound), optical imaging and mass spectrometry imaging. Because each imaging modality provides information at a different scale and has its own strengths and weaknesses, choosing wisely and combining modalities will lead to a wealth of information that will help bring nanomedicine forward.
Collapse
|
30
|
Kobayashi K, Manabe O, Hirata K, Yamaguchi S, Kobayashi H, Terasaka S, Toyonaga T, Furuya S, Magota K, Kuge Y, Kudo K, Shiga T, Tamaki N. Influence of the scan time point when assessing hypoxia in 18F-fluoromisonidazole PET: 2 vs. 4 h. Eur J Nucl Med Mol Imaging 2019; 47:1833-1842. [PMID: 31781832 DOI: 10.1007/s00259-019-04626-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 11/18/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE 18F-fluoromisonidazole (18F-FMISO) is the most widely used positron emission tomography (PET) tracer for imaging tumor hypoxia. Previous reports suggested that the time from injection to the scan may affect the assessment of 18F-FMISO uptake. Herein, we directly compared the images at 2 h and 4 h after a single injection of 18F-FMISO. METHODS Twenty-three patients with or suspected of having a brain tumor were scanned twice at 2 and 4 h following an intravenous injection of 18F-FMISO. We estimated the mean standardized uptake value (SUV) of the gray matter and white matter and the gray-to-white matter ratio in the background brain tissue from the two scans. We also performed a semi-quantitative analysis using the SUVmax and maximum tumor-to-normal ratio (TNR) for the tumor. RESULTS At 2 h, the SUVmean of gray matter was significantly higher than that of white matter (median 1.23, interquartile range (IQR) 1.10-1.32 vs. 1.04, IQR 0.95-1.16, p < 0.0001), whereas at 4 h, it significantly decreased to approach that of the white matter (1.10, IQR 1.00-1.23 vs. 1.02, IQR 0.93-1.13, p = NS). The gray-to-white matter ratio thus significantly declined from 1.17 (IQR 1.14-1.19) to 1.09 (IQR 1.07-1.10) (p < 0.0001). All 7 patients with glioblastoma showed significant increases in the SUVmax (2.20, IQR 1.67-3.32 at 2 h vs. 2.65, IQR 1.74-4.41 at 4 h, p = 0.016) and the TNR (1.75, IQR 1.40-2.38 at 2 h vs. 2.34, IQR 1.67-3.60 at 4 h, p = 0.016). CONCLUSION In the assessment of hypoxic tumors, 18F-FMISO PET for hypoxia imaging should be obtained at 4 h rather than 2 h after the injection.
Collapse
Affiliation(s)
- Kentaro Kobayashi
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, 060-8638, Japan
| | - Osamu Manabe
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, 060-8638, Japan
| | - Kenji Hirata
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, 060-8638, Japan.
| | - Shigeru Yamaguchi
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | | | | | - Takuya Toyonaga
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA
| | - Sho Furuya
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, 060-8638, Japan
| | - Keiichi Magota
- Division of Medical Imaging and Technology, Hokkaido University Hospital, Sapporo, Japan
| | - Yuji Kuge
- Central Institute of Isotope Science, Hokkaido University, Sapporo, Japan
| | - Kohsuke Kudo
- Department of Diagnostic Imaging, Hokkaido University Graduate School of Medicine, Sapporo, Japan.,Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
| | - Tohru Shiga
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Hokkaido, 060-8638, Japan
| | - Nagara Tamaki
- Department of Radiology, Kyoto Prefectural University, Kyoto, Japan
| |
Collapse
|
31
|
A Novel PET Probe "[ 18F]DiFA" Accumulates in Hypoxic Region via Glutathione Conjugation Following Reductive Metabolism. Mol Imaging Biol 2019; 21:122-129. [PMID: 29845425 DOI: 10.1007/s11307-018-1214-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
PURPOSE Hypoxia in tumor has close relationship with angiogenesis and tumor progression. Previously, we developed 2,2-dihydroxymethyl-3-[18F]fluoropropyl-2-nitroimidazole ([18F]DiFA) as a novel positron emission tomography (PET) probe for diagnosis of hypoxia. In this study, we elucidated whether the accumulation of [18F]DiFA in cells is dependent on the hypoxic state and revealed how [18F]DiFA accumulates in hypoxic cells in combination with imaging mass spectrometry (IMS). PROCEDURES FaDu human head and neck cancer cells were treated with [18F]DiFA and then incubated under normoxia (21% O2) or hypoxia (1% O2) for 2 h. The cells were extracted using methanol, and the radioactivities of the precipitates (macromolecule fraction) and supernatants (low-molecular-weight fraction) were measured. FaDu-bearing mice were injected intravenously with [18F]DiFA and with pimonidazole 1 h later. The tumors were excised 2 h after the injection of [18F]DiFA. Autoradiography, IMS, and immunohistochemical (IHC) staining for pimonidazole were performed with serial tumor sections. RESULTS In the in vitro study, the radioactivity of FaDu cells was significantly higher under hypoxia than that under normoxia (0.53 ± 0.02 vs. 0.27 ± 0.02 %dose/mg protein, p < 0.05). The radioactivity of the low-molecular-weight fraction was 66.3 ± 0.6% in the hypoxic cell. In the in vivo study, [18F]DiFA accumulated in the tumor tissues existed mainly as low-molecular-weight compounds (90.4 ± 0.9%). In addition, the glutathione conjugate of reductive DiFA metabolite (amino-DiFA-GS) existed in tumor tissues revealed by the IMS study, and the distribution pattern of amino-DiFA-GS was very similar to that of the radioactivity and the positive staining area of pimonidazole. CONCLUSIONS Our results suggest that [18F]DiFA undergoes the glutathione conjugation reaction following reductive metabolism in hypoxic cells, which leads hypoxia-specific PET imaging with [18F]DiFA.
Collapse
|
32
|
The Roles of Hypoxia Imaging Using 18F-Fluoromisonidazole Positron Emission Tomography in Glioma Treatment. J Clin Med 2019; 8:jcm8081088. [PMID: 31344848 PMCID: PMC6723061 DOI: 10.3390/jcm8081088] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/16/2019] [Accepted: 07/22/2019] [Indexed: 12/14/2022] Open
Abstract
Glioma is the most common malignant brain tumor. Hypoxia is closely related to the malignancy of gliomas, and positron emission tomography (PET) can noninvasively visualize the degree and the expansion of hypoxia. Currently, 18F-fluoromisonidazole (FMISO) is the most common radiotracer for hypoxia imaging. The clinical usefulness of FMISO PET has been established; it can distinguish glioblastomas from lower-grade gliomas and can predict the microenvironment of a tumor, including necrosis, vascularization, and permeability. FMISO PET provides prognostic information, including survival and treatment response information. Because hypoxia decreases a tumor’s sensitivity to radiation therapy, dose escalation to an FMISO-positive volume is an attractive strategy. Although this idea is not new, an insufficient amount of evidence has been obtained regarding this concept. New tracers for hypoxia imaging such as 18F-DiFA are being tested. In the future, hypoxia imaging will play an important role in glioma management.
Collapse
|
33
|
Watanabe S, Shiga T, Hirata K, Magota K, Okamoto S, Toyonaga T, Higashikawa K, Yasui H, Kobayashi J, Nishijima KI, Iseki K, Matsumoto H, Kuge Y, Tamaki N. Biodistribution and radiation dosimetry of the novel hypoxia PET probe [ 18F]DiFA and comparison with [ 18F]FMISO. EJNMMI Res 2019; 9:60. [PMID: 31278504 PMCID: PMC6611855 DOI: 10.1186/s13550-019-0525-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/05/2019] [Indexed: 02/03/2023] Open
Abstract
Background To facilitate hypoxia imaging in a clinical setting, we developed 1-(2,2-dihydroxymethyl-3-[18F]-fluoropropyl)-2-nitroimidazole ([18F]DiFA) as a new tracer that targets tumor hypoxia with its lower lipophilicity and efficient radiosynthesis. Here, we evaluated the radiation dosage, biodistribution, human safety, tolerability, and early elimination after the injection of [18F]DiFA in healthy subjects, and we performed a preliminary clinical study of patients with malignant tumors in a comparison with [18F]fluoromisonidazole ([18F]FMISO). Results The single administration of [18F]DiFA in 8 healthy male adults caused neither adverse events nor abnormal clinical findings. Dynamic and sequential whole-body scans showed that [18F]DiFA was rapidly cleared from all of the organs via the hepatobiliary and urinary systems. The whole-body mean effective dose of [18F]DiFA estimated by using the medical internal radiation dose (MIRD) schema with organ level internal dose assessment/exponential modeling (OLINDA/EXM) computer software 1.1 was 14.4 ± 0.7 μSv/MBq. Among the organs, the urinary bladder received the largest absorbed dose (94.7 ± 13.6 μSv/MBq). The mean absorbed doses of the other organs were equal to or less than those from other hypoxia tracers. The excretion of radioactivity via the urinary system was very rapid, reaching 86.4 ± 7.1% of the administered dose. For the preliminary clinical study, seven patients were subjected to [18F]FMISO and [18F]DiFA positron emission tomography (PET) at 48-h intervals to compare the two tracers’ diagnostic ability for tumor hypoxia. The results of the tumor hypoxia evaluation by [18F]DiFA PET at 1 h and 2 h were not significantly different from those obtained with [18F]FMISO PET at 4 h ([18F]DiFA at 1 h, p = 0.32; [18F]DiFA at 2 h, p = 0.08). Moreover, [18F]DiFA PET at both 1 h (k = 0.68) and 2 h (k = 1.00) showed better inter-observer reproducibility than [18F]FMISO PET at 4 h (k = 0.59). Conclusion [18F]DiFA is well tolerated, and its radiation dose is comparable to those of other hypoxia tracers. [18F]DiFA is very rapidly cleared via the urinary system. [18F]DiFA PET generated comparable images to [18F]FMISO PET in hypoxia imaging with shorter waiting time, demonstrating the promising potential of [18F]DiFA PET for hypoxia imaging and for a multicenter trial. Electronic supplementary material The online version of this article (10.1186/s13550-019-0525-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Shiro Watanabe
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Tohru Shiga
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.
| | - Kenji Hirata
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Keiichi Magota
- Division of Medical Imaging and Technology, Hokkaido University Hospital, Kita-14, Nishi-5, Kita-ku, Sapporo, 060-8648, Japan
| | - Shozo Okamoto
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.,Department of Radiology, Obihiro Kosei Hospital, West 14 South 10-1, Obihiro, 080-0024, Japan
| | - Takuya Toyonaga
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Kei Higashikawa
- Central Institute of Isotope Science, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Hironobu Yasui
- Central Institute of Isotope Science, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Jun Kobayashi
- Department of Pharmacy, Hokkaido University Hospital, Kita-14, Nishi-5, Kita-ku, Sapporo, 060-8648, Japan
| | - Ken-Ichi Nishijima
- Central Institute of Isotope Science, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.,Advanced Clinical Research Center, Fukushima Global Medical Science Center, Fukushima Medical University, 1 Hikariga-oka, Fukushima, 960-1295, Japan
| | - Ken Iseki
- Department of Pharmacy, Hokkaido University Hospital, Kita-14, Nishi-5, Kita-ku, Sapporo, 060-8648, Japan.,Faculty of Pharmaceutical Sciences, Kita-14, Nishi-5, Kita-ku, Sapporo, 060-8648, Japan
| | - Hiroki Matsumoto
- Research Centre, Nihon Medi-Physics Co., Ltd., 3-1 Kitasode, Sodegaura, 299-0266, Japan
| | - Yuji Kuge
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.,Central Institute of Isotope Science, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Nagara Tamaki
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.,Department of Radiology, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| |
Collapse
|
34
|
Shchepin RV, Birchall JR, Chukanov NV, Kovtunov KV, Koptyug IV, Theis T, Warren WS, Gelovani JG, Goodson BM, Shokouhi S, Rosen MS, Yen YF, Pham W, Chekmenev EY. Hyperpolarizing Concentrated Metronidazole 15 NO 2 Group over Six Chemical Bonds with More than 15 % Polarization and a 20 Minute Lifetime. Chemistry 2019; 25:8829-8836. [PMID: 30964568 PMCID: PMC6658333 DOI: 10.1002/chem.201901192] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/04/2019] [Indexed: 12/17/2022]
Abstract
The NMR hyperpolarization of uniformly 15 N-labeled [15 N3 ]metronidazole is demonstrated by using SABRE-SHEATH. In this antibiotic, the 15 NO2 group is hyperpolarized through spin relays created by 15 N spins in [15 N3 ]metronidazole, and the polarization is transferred from parahydrogen-derived hydrides over six chemical bonds. In less than a minute of parahydrogen bubbling at approximately 0.4 μT, a high level of nuclear spin polarization (P15N ) of around 16 % is achieved on all three 15 N sites. This product of 15 N polarization and concentration of 15 N spins is around six-fold better than any previous value determined for 15 N SABRE-derived hyperpolarization. At 1.4 T, the hyperpolarized state persists for tens of minutes (relaxation time, T1 ≈10 min). A novel synthesis of uniformly 15 N-enriched metronidazole is reported with a yield of 15 %. This approach can potentially be used for synthesis of a wide variety of in vivo metabolic probes with potential uses ranging from hypoxia sensing to theranostic imaging.
Collapse
Affiliation(s)
- Roman V Shchepin
- Department of Radiology, Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, 37232-2310, USA
| | - Jonathan R Birchall
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan, 48202, USA
| | - Nikita V Chukanov
- International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Kirill V Kovtunov
- International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Igor V Koptyug
- International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk, 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Thomas Theis
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695-8204, USA
| | - Warren S Warren
- Department of Chemistry, Duke University, Durham, North Carolina, 27708, USA
| | - Juri G Gelovani
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan, 48202, USA
| | - Boyd M Goodson
- Department of Chemistry and Biochemistry and Materials Technology Center, Southern Illinois University, Carbondale, Illinois, 62901, USA
| | - Sepideh Shokouhi
- Department of Radiology, Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, 37232-2310, USA
| | - Matthew S Rosen
- Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging, Boston, Massachusetts, 02129, USA
| | - Yi-Fen Yen
- Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging, Boston, Massachusetts, 02129, USA
| | - Wellington Pham
- Department of Radiology, Vanderbilt University Institute of Imaging Science (VUIIS), Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, 37232-2310, USA
| | - Eduard Y Chekmenev
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan, 48202, USA
- Russian Academy of Sciences, Leninskiy Prospekt 14, Moscow, 119991, Russia
| |
Collapse
|
35
|
Shimizu Y, Motomura A, Takakura H, Tamaki N, Kuge Y, Ogawa M. Accumulation of hypoxia imaging probe “18F-FMISO” in macrophages depends on macrophage polarization in addition to hypoxic state. Ann Nucl Med 2019; 33:362-367. [DOI: 10.1007/s12149-019-01332-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/09/2019] [Indexed: 10/27/2022]
|
36
|
Shimizu Y. [Accumulation Mechanism of 2-Nitroimidazole-based Hypoxia Imaging Probes Revealed by Imaging Mass Spectrometry]. YAKUGAKU ZASSHI 2018; 138:1345-1352. [PMID: 30381642 DOI: 10.1248/yakushi.18-00146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hypoxia in tumor tissues plays a pivotal role in tumor progression and angiogenesis, and is associated with cancer therapeutic resistance. For the diagnosis of hypoxia, non-invasive imaging techniques, especially positron emission tomography (PET) with 2-nitroimidazole-based probes, are used, since 2-nitroimidazole-based probes are considered to undergo reductive metabolism on their 2-nitroimidazole moiety and become trapped in hypoxic cells. However, the detailed mechanism of their accumulation remains unclear because of the difficulty in estimating the metabolites by radioisotopic analysis. Imaging mass spectrometry (IMS) can distinguish the distribution patterns of the drug and its metabolites. To clarify the accumulation mechanism of 2-nitroimidazole-based probes in hypoxic cells, we evaluated [18F]fluoromisonidazole (FMISO), a 2-nitroimidazole-based PET probe, in combination with radioisotopic analysis and IMS. We found that the glutathione conjugate of reduced FMISO (amino-FMISO-GS) was the main FMISO metabolite, and was specifically distributed in the hypoxic regions of tumors. The same phenomenon was observed when we examined another 2-nitroimidazole-based probe, pimonidazole. The in vitro cellular uptake study revealed that FMISO accumulation in hypoxic cells depends on the cell type. In those cells exhibiting higher FMISO uptake, the reactive glutathione level and enzyme (glutathione S-transferase; GST) activity catalyzing the glutathione conjugation reaction was significantly higher, whereas the expression level of the efflux transporter (multidrug resistance-associated protein 1; MRP1) was significantly lower. Our study suggests that 2-nitroimidazole-based probes accumulate in hypoxic cells via glutathione conjugation following reductive metabolism, which depends not only on the glutathione conjugation capacity of the cells but also on hypoxic conditions.
Collapse
|
37
|
The Effect of Neoadjuvant Androgen Deprivation Therapy on Tumor Hypoxia in High-Grade Prostate Cancer: An 18F-MISO PET-MRI Study. Int J Radiat Oncol Biol Phys 2018; 102:1210-1218. [DOI: 10.1016/j.ijrobp.2018.02.170] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 02/16/2018] [Accepted: 02/28/2018] [Indexed: 12/16/2022]
|
38
|
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: 4.3] [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.
Collapse
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
| |
Collapse
|
39
|
Bonnitcha P, Grieve S, Figtree G. Clinical imaging of hypoxia: Current status and future directions. Free Radic Biol Med 2018; 126:296-312. [PMID: 30130569 DOI: 10.1016/j.freeradbiomed.2018.08.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/30/2018] [Accepted: 08/14/2018] [Indexed: 12/20/2022]
Abstract
Tissue hypoxia is a key feature of many important causes of morbidity and mortality. In pathologies such as stroke, peripheral vascular disease and ischaemic heart disease, hypoxia is largely a consequence of low blood flow induced ischaemia, hence perfusion imaging is often used as a surrogate for hypoxia to guide clinical diagnosis and treatment. Importantly, ischaemia and hypoxia are not synonymous conditions as it is not universally true that well perfused tissues are normoxic or that poorly perfused tissues are hypoxic. In pathologies such as cancer, for instance, perfusion imaging and oxygen concentration are less well correlated, and oxygen concentration is independently correlated to radiotherapy response and overall treatment outcomes. In addition, the progression of many diseases is intricately related to maladaptive responses to the hypoxia itself. Thus there is potentially great clinical and scientific utility in direct measurements of tissue oxygenation. Despite this, imaging assessment of hypoxia in patients is rarely performed in clinical settings. This review summarises some of the current methods used to clinically evaluate hypoxia, the barriers to the routine use of these methods and the newer agents and techniques being explored for the assessment of hypoxia in pathological processes.
Collapse
Affiliation(s)
- Paul Bonnitcha
- Northern and Central Clinical Schools, Faculty of Medicine, Sydney University, Sydney, NSW 2006, Australia; Chemical Pathology Department, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia; Kolling Institute of Medical Research, University of Sydney, St Leonards, New South Wales 2065, Australia.
| | - Stuart Grieve
- Sydney Translational Imaging Laboratory, Heart Research Institute, Charles Perkins Centre and Sydney Medical School, University of Sydney, NSW 2050, Australia
| | - Gemma Figtree
- Kolling Institute of Medical Research, University of Sydney, St Leonards, New South Wales 2065, Australia; Cardiology Department, Royal North Shore Hospital, St Leonards, New South Wales 2065, Australia
| |
Collapse
|
40
|
Farolfi A, Ghedini P, Fanti S. Highlights from 2017: impactful topics published in the Annals of Nuclear Medicine. Eur J Nucl Med Mol Imaging 2018; 46:217-223. [PMID: 30267115 DOI: 10.1007/s00259-018-4169-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 09/13/2018] [Indexed: 01/08/2023]
Abstract
The aim of the review is to highlight articles published in 2017 in the Annals of Nuclear Medicine, an official peer-reviewed journal of the Japanese Society of Nuclear Medicine. Among all published manuscripts during the past year, we conducted a subjective selection of the most relevant topics. Fourteen fascinating articles are included in this review, ranging in topic from preclinical to clinical arenas.
Collapse
Affiliation(s)
- Andrea Farolfi
- Metropolitan Nuclear Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Via Pietro Albertoni 15, 40138, Bologna, Italy.
| | - Pietro Ghedini
- Metropolitan Nuclear Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Via Pietro Albertoni 15, 40138, Bologna, Italy
| | - Stefano Fanti
- Metropolitan Nuclear Medicine, S.Orsola-Malpighi Hospital, University of Bologna, Via Pietro Albertoni 15, 40138, Bologna, Italy
| |
Collapse
|
41
|
Kidd BE, Gesiorski JL, Gemeinhardt ME, Shchepin RV, Kovtunov KV, Koptyug IV, Chekmenev EY, Goodson BM. Facile Removal of Homogeneous SABRE Catalysts for Purifying Hyperpolarized Metronidazole, a Potential Hypoxia Sensor. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:16848-16852. [PMID: 30559921 PMCID: PMC6294139 DOI: 10.1021/acs.jpcc.8b05758] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We report a simple and effective method to remove IrIMes homogeneous polarization transfer catalysts from solutions where NMR Signal Amplification By Reversible Exchange (SABRE) has been performed, while leaving intact the substrate's hyperpolarized state. Following microTesla SABRE hyperpolarization of 15N spins in metronidazole, addition of SiO2 microparticles functionalized with 3-mercaptopropyl or 2-mercaptoethyl ethyl sulfide moieties provides removal of the catalyst from solution well within the hyperpolarization decay time at 0.3 T (T 1>3 mins)-and enabling transfer to 9.4 T for detection of enhanced 15N signals in the absence of catalyst within the NMR-detection region. Successful catalyst removal from solution is supported by the inability to "re-hyperpolarize" 15N spins in subsequent attempts, as well as by 1H NMR and ICP-MS. Record-high 15N nuclear polarization of up to ~34% was achieved, corresponding to >100,000-fold enhancement at 9.4 T, and approximately 5/6th of the 15N hyperpolarization is retained after ~20-second-long purification procedure. Taken together, these results help pave the way for future studies involving in vivo molecular imaging using agents hyperpolarized via rapid and inexpensive parahydrogen-based methods.
Collapse
Affiliation(s)
- Bryce E. Kidd
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901 United States
| | - Jonathan L. Gesiorski
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901 United States
| | - Max E. Gemeinhardt
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901 United States
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 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 Science (VUIIS), Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 United States
- Integrative Biosciences (Ibio), Department of Chemistry, Wayne State University, Karmanos Cancer Institute (KCI), Detroit, Michigan 48202 United States
- Russian Academy of Sciences, Moscow, Leninskiy Prospekt 14, 119991, Russia
- Corresponding Authors: ,
| | - Boyd M. Goodson
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901 United States
- Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901 United States
- Corresponding Authors: ,
| |
Collapse
|
42
|
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: 4.7] [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.
Collapse
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
| |
Collapse
|
43
|
He J, Huang L, Tian R, Li T, Sun C, Song X, Lv Y, Luo Z, Li X, Abliz Z. MassImager: A software for interactive and in-depth analysis of mass spectrometry imaging data. Anal Chim Acta 2018. [PMID: 29530251 DOI: 10.1016/j.aca.2018.02.030] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Mass spectrometry imaging (MSI) has become a powerful tool to probe molecule events in biological tissue. However, it is a widely held viewpoint that one of the biggest challenges is an easy-to-use data processing software for discovering the underlying biological information from complicated and huge MSI dataset. Here, a user-friendly and full-featured MSI software including three subsystems, Solution, Visualization and Intelligence, named MassImager, is developed focusing on interactive visualization, in-situ biomarker discovery and artificial intelligent pathological diagnosis. Simplified data preprocessing and high-throughput MSI data exchange, serialization jointly guarantee the quick reconstruction of ion image and rapid analysis of dozens of gigabytes datasets. It also offers diverse self-defined operations for visual processing, including multiple ion visualization, multiple channel superposition, image normalization, visual resolution enhancement and image filter. Regions-of-interest analysis can be performed precisely through the interactive visualization between the ion images and mass spectra, also the overlaid optical image guide, to directly find out the region-specific biomarkers. Moreover, automatic pattern recognition can be achieved immediately upon the supervised or unsupervised multivariate statistical modeling. Clear discrimination between cancer tissue and adjacent tissue within a MSI dataset can be seen in the generated pattern image, which shows great potential in visually in-situ biomarker discovery and artificial intelligent pathological diagnosis of cancer. All the features are integrated together in MassImager to provide a deep MSI processing solution at the in-situ metabolomics level for biomarker discovery and future clinical pathological diagnosis.
Collapse
Affiliation(s)
- Jiuming He
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Luojiao Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Runtao Tian
- Chemmind Technologies Co., Ltd., Beijing 100085, China
| | - Tiegang Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Chenglong Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaowei Song
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yiwei Lv
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhigang Luo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xin Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zeper Abliz
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; Center for Imaging and Systems Biology, Minzu University of China, Beijing 100081, China.
| |
Collapse
|
44
|
Shchepin RV, Jaigirdar L, Theis T, Warren WS, Goodson BM, Chekmenev EY. Spin Relays Enable Efficient Long-Range Heteronuclear Signal Amplification By Reversible Exchange. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:28425-28434. [PMID: 29955243 PMCID: PMC6017995 DOI: 10.1021/acs.jpcc.7b11485] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A systematic experimental study is reported on the polarization transfer to distant spins, which do not directly bind to the polarization transfer complexes employed in Signal Amplification By Reversible Exchange (SABRE) experiments. Both, long-range transfer to protons and long-range transfer to heteronuclei i.e. 13C and 15N are examined. Selective destruction of hyperpolarization on 1H, 13C, and 15N sites is employed, followed by their re-hyperpolarization from neighboring spins within the molecules of interest (pyridine for 1H studies and metronidazole-15N2-13C2 for 13C and 15N studies). We conclude that long-range sites can be efficiently hyperpolarized when a network of spin-½ nuclei enables relayed polarization transfer (i.e. via short-range interactions between sites). In case of proton SABRE in the milli-Tesla regime, a relay network consisting of protons only is sufficient. However, in case 13C and 15N are targeted (i.e. via SABRE in SHield Enables Alignment Transfer to Heteronuclei or SABRE-SHEATH experiment), the presence of a heteronuclear network (e.g. consisting of 15N) enables a relay mechanism that is significantly more efficient than the direct transfer of spin order from para-H2-derived hydrides.
Collapse
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
| | - Thomas Theis
- 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
| | - Boyd M. Goodson
- Department of Chemistry and Biochemistry and Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, 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
| |
Collapse
|
45
|
Daniel M, Andrzejewski P, Sturdza A, Majercakova K, Baltzer P, Pinker K, Wadsak W, Mitterhauser M, Pötter R, Georg P, Helbich T, Georg D. Impact of hybrid PET/MR technology on multiparametric imaging and treatment response assessment of cervix cancer. Radiother Oncol 2017; 125:420-425. [DOI: 10.1016/j.radonc.2017.10.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 10/27/2017] [Accepted: 10/28/2017] [Indexed: 12/12/2022]
|
46
|
Quantitative [ 18F]FMISO PET Imaging Shows Reduction of Hypoxia Following Trastuzumab in a Murine Model of HER2+ Breast Cancer. Mol Imaging Biol 2017; 19:130-137. [PMID: 27506906 DOI: 10.1007/s11307-016-0994-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE Evaluation of [18F]fluoromisonidazole ([18F]FMISO)-positron emission tomography (PET) imaging as a metric for evaluating early response to trastuzumab therapy with histological validation in a murine model of HER2+ breast cancer. PROCEDURES Mice with BT474, HER2+ tumors, were imaged with [18F]FMISO-PET during trastuzumab therapy. Pimonidazole staining was used to confirm hypoxia from imaging. RESULTS [18F]FMISO-PET indicated significant decreases in hypoxia beginning on day 3 (P < 0.01) prior to changes in tumor size. These results were confirmed with pimonidazole staining on day 7 (P < 0.01); additionally, there was a significant positive linear correlation between histology and PET imaging (r 2 = 0.85). CONCLUSIONS [18F]FMISO-PET is a clinically relevant modality which provides the opportunity to (1) predict response to HER2+ therapy before changes in tumor size and (2) identify decreases in hypoxia which has the potential to guide subsequent therapy.
Collapse
|
47
|
Abstract
Cancer and other diseases are increasingly understood in terms of their metabolic disturbances. This thinking has revolutionized the field of ex vivo metabolomics and motivated new approaches to detect metabolites in living systems, including proton magnetic resonance spectroscopy (1H-MRS), hyperpolarized 13C MRS, and PET. For PET, imaging abnormal metabolism in vivo is hardly new. Positron-labeled small-molecule metabolites have been used for decades in humans, including 18F-FDG, which is used frequently to detect upregulated glycolysis in tumors. Many current 18F metabolic tracers including 18F-FDG have evolved from their 11C counterparts, chemically identical to endogenous substrates and thus approximating intrinsic biochemical pathways. This mimicry has stimulated the development of new radiochemical methods to incorporate 11C and inspired the synthesis of a large number of 11C endogenous radiotracers. This is in spite of the 20-minute half-life of 11C, which generally limits its use in patients to centers with an on-site cyclotron. Innovation in 11C chemistry has persisted in the face of this limitation, because (1) the radiochemists involved are inspired, (2) the methods of 11C incorporation are diverse, and (3) 11C compounds often show more predictable in vivo behavior, thus representing an important first step in the validation of new tracer concepts. In this mini-review we will discuss some of the general motivations behind PET tracers, rationales for the use of 11C, and some of the special challenges encountered in the synthesis of 11C endogenous compounds. Most importantly, we will try to highlight the exceptional creativity used in early 11C tracer syntheses, which used enzyme-catalyzed and other "green" methods before these concepts were commonplace.
Collapse
Affiliation(s)
- Kiel Neumann
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA
| | - Robert Flavell
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA
| | - David M Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA.
| |
Collapse
|
48
|
Masaki Y, Shimizu Y, Yoshioka T, Nishijima KI, Zhao S, Higashino K, Numata Y, Tamaki N, Kuge Y. FMISO accumulation in tumor is dependent on glutathione conjugation capacity in addition to hypoxic state. Ann Nucl Med 2017; 31:596-604. [PMID: 28695498 PMCID: PMC5622914 DOI: 10.1007/s12149-017-1189-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 07/01/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVE 18F-fluoromisonidazole (FMISO), a well-known PET imaging probe for diagnosis of hypoxia, is believed to accumulate in hypoxic cells via covalent binding with macromolecules after reduction of the nitro group. Previously, we showed the majority of 18F-FMISO was incorporated into low-molecular-weight metabolites in hypoxic tumors, and the glutathione conjugate of reduced FMISO (amino-FMISO-GS) distributed in the tumor hypoxic regions as revealed by imaging mass spectrometry (IMS). The present study was conducted to clarify whether FMISO is metabolized to amino-FMISO-GS within tumor cells and how amino-FMISO-GS contributes to FMISO accumulation in hypoxic cells. We also evaluated the relationship between FMISO accumulation and the glutathione conjugation-related factors in the cells. METHODS Tumor cells (FaDu, LOVO, and T24) were treated with 18F-FMISO and incubated under normoxic or hypoxic conditions for 4 h. The FMISO metabolites were analyzed with LC-ESI-MS. Several glutathione conjugation-related factors of tumor cells were evaluated in vitro. FaDu tumor-bearing mice were intravenously injected with 18F-FMISO and the tumors were excised at 4 h post-injection. Autoradiography, IMS and histologic studies were performed. RESULTS Amino-FMISO-GS was the main contributor to FMISO incorporated in hypoxic FaDu cells in vitro and in vivo. Total FMISO uptake levels and amino-FMISO-GS levels were highest in FaDu, followed by LOVO, and then T24 (total uptake: 0.851 ± 0.009 (FaDu), 0.617 ± 0.021 (LOVO) and 0.167 ± 0.006 (T24) % dose/mg protein; amino-FMISO-GS: 0.502 ± 0.035 (FaDu), 0.158 ± 0.013 (LOVO), and 0.007 ± 0.001 (T24) % dose/mg protein). The glutathione level of FaDu was significantly higher than those of LOVO and T24. The enzyme activity of glutathione-S-transferase catalyzing the glutathione conjugation reaction in FaDu was similar levels to that in LOVO, and was higher than that in T24. Quantitative RT-PCR analysis revealed that the expression levels of efflux transporters of the glutathione conjugate (multidrug resistance-associated protein 1) were lowest in FaDu, followed by LOVO, and then T24. CONCLUSIONS FMISO accumulates in hypoxic cells through reductive metabolism followed by glutathione conjugation. We illustrated the possibility that increased production and decreased excretion of amino-FMISO-GS contribute to FMISO accumulation in tumor cells under hypoxic conditions.
Collapse
Affiliation(s)
- Yukiko Masaki
- Shionogi Innovation Center for Drug Discovery, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., Sapporo, 001-0021, Japan
| | - Yoichi Shimizu
- Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
- Central Institute of Isotope Science, Hokkaido University, Sapporo, 060-0815, Japan.
| | - Takeshi Yoshioka
- Shionogi Innovation Center for Drug Discovery, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., Sapporo, 001-0021, Japan
| | - Ken-Ichi Nishijima
- Central Institute of Isotope Science, Hokkaido University, Sapporo, 060-0815, Japan
- Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Songji Zhao
- Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Kenichi Higashino
- Shionogi Innovation Center for Drug Discovery, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., Sapporo, 001-0021, Japan
| | - Yoshito Numata
- Shionogi Innovation Center for Drug Discovery, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., Sapporo, 001-0021, Japan
| | - Nagara Tamaki
- Central Institute of Isotope Science, Hokkaido University, Sapporo, 060-0815, Japan
| | - Yuji Kuge
- Central Institute of Isotope Science, Hokkaido University, Sapporo, 060-0815, Japan
- Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| |
Collapse
|
49
|
Sikkandhar MG, Nedumaran AM, Ravichandar R, Singh S, Santhakumar I, Goh ZC, Mishra S, Archunan G, Gulyás B, Padmanabhan P. Theranostic Probes for Targeting Tumor Microenvironment: An Overview. Int J Mol Sci 2017; 18:E1036. [PMID: 28492519 PMCID: PMC5454948 DOI: 10.3390/ijms18051036] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 05/06/2017] [Accepted: 05/08/2017] [Indexed: 01/07/2023] Open
Abstract
Long gone is the time when tumors were thought to be insular masses of cells, residing independently at specific sites in an organ. Now, researchers gradually realize that tumors interact with the extracellular matrix (ECM), blood vessels, connective tissues, and immune cells in their environment, which is now known as the tumor microenvironment (TME). It has been found that the interactions between tumors and their surrounds promote tumor growth, invasion, and metastasis. The dynamics and diversity of TME cause the tumors to be heterogeneous and thus pose a challenge for cancer diagnosis, drug design, and therapy. As TME is significant in enhancing tumor progression, it is vital to identify the different components in the TME such as tumor vasculature, ECM, stromal cells, and the lymphatic system. This review explores how these significant factors in the TME, supply tumors with the required growth factors and signaling molecules to proliferate, invade, and metastasize. We also examine the development of TME-targeted nanotheranostics over the recent years for cancer therapy, diagnosis, and anticancer drug delivery systems. This review further discusses the limitations and future perspective of nanoparticle based theranostics when used in combination with current imaging modalities like Optical Imaging, Magnetic Resonance Imaging (MRI) and Nuclear Imaging (Positron Emission Tomography (PET) and Single Photon Emission Computer Tomography (SPECT)).
Collapse
Affiliation(s)
- Musafar Gani Sikkandhar
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Anu Maashaa Nedumaran
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Roopa Ravichandar
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Satnam Singh
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Induja Santhakumar
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Zheng Cong Goh
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Sachin Mishra
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Govindaraju Archunan
- Centre for Pheromone Technology, Department of Animal Science, Bharathidasan University, Tiruchirappalli 620024, India.
| | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| | - Parasuraman Padmanabhan
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore.
| |
Collapse
|
50
|
Efficient preparation of 2-nitroimidazole nucleosides as precursors for hypoxia PET tracers. MONATSHEFTE FUR CHEMIE 2017; 148:83-90. [PMID: 28127094 PMCID: PMC5225226 DOI: 10.1007/s00706-016-1874-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 11/06/2016] [Indexed: 11/03/2022]
Abstract
Abstract 2-Deoxy-D-ribose was converted to α/β-mixtures of methyl 3-O-acetyl- and methyl 3-O-benzoyl-2-deoxy-5-(p-toluenesulfonyl)-D-ribofuranosides. These were reacted with boron trichloride to generate ribofuranosyl chlorides, which afforded precursors for tracers to image tumor hypoxia on substitution with salts of 2-nitroimidazole. The anomeric ratio of the nucleosides was delicately influenced by the reaction conditions. Graphical abstract ![]()
Collapse
|