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Nguyen AT, Kim HK. Recent Progress in Synthesis of 99mTc-labeled Complexes with Nitroimidazoles as SPECT Probes for Targeting Tumor Hypoxia. Nucl Med Mol Imaging 2024; 58:258-278. [PMID: 39036459 PMCID: PMC11255181 DOI: 10.1007/s13139-024-00860-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 07/23/2024] Open
Abstract
The majority of solid tumors have hypoxia, or low oxygen levels, which is one of the hallmarks of cancer. Hypoxia was found to relate to cancer metastases and resistance to therapies, therefore, detection of hypoxia plays an important role in the process of cancer prognosis and treatment. Single-photon emission computed tomography (SPECT) is a non-invasive imaging technique using gamma-emitting radiopharmaceuticals to visualize biological activities within the body. SPECT is also applied for the detection of tumor hypoxia with the development of hypoxia-targeting radiopharmaceuticals. Radiopharmaceuticals containing nitroimidazole moieties have received increasing attention due to their bio-reducible characteristics which make the radiopharmaceuticals accumulate in the hypoxia regions. This review summarizes the recent development of 99mTc-labeled radiopharmaceuticals bearing nitroimidazoles for SPECT imaging of tumor hypoxia including the synthetic methods and results of animal studies.
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Affiliation(s)
- Anh Thu Nguyen
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54907 Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, 54907 Republic of Korea
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2
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Fabijańska M, Rybarczyk-Pirek AJ, Dominikowska J, Stryjska K, Żyro D, Markowicz-Piasecka M, Szynkowska-Jóźwik MI, Ochocki J, Sikora J. Silver Complexes of Miconazole and Metronidazole: Potential Candidates for Melanoma Treatment. Int J Mol Sci 2024; 25:5081. [PMID: 38791121 PMCID: PMC11121064 DOI: 10.3390/ijms25105081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/27/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
Melanoma, arguably the deadliest form of skin cancer, is responsible for the majority of skin-cancer-related fatalities. Innovative strategies concentrate on new therapies that avoid the undesirable effects of pharmacological or medical treatment. This article discusses the chemical structures of [(MTZ)2AgNO3], [(MTZ)2Ag]2SO4, [Ag(MCZ)2NO3], [Ag(MCZ)2BF4], [Ag(MCZ)2SbF6] and [Ag(MCZ)2ClO4] (MTZ-metronidazole; MCZ-miconazole) silver(I) compounds and the possible relationship between the molecules and their cytostatic activity against melanoma cells. Molecular Hirshfeld surface analysis and computational methods were used to examine the possible association between the structure and anticancer activity of the silver(I) complexes and compare the cytotoxicity of the silver(I) complexes of metronidazole and miconazole with that of silver(I) nitrate, cisplatin, metronidazole and miconazole complexes against A375 and BJ cells. Additionally, these preliminary biological studies found the greatest IC50 values against the A375 line were demonstrated by [Ag(MCZ)2NO3] and [(MTZ)2AgNO3]. The compound [(MTZ)2AgNO3] was three-fold more toxic to the A375 cells than the reference (cisplatin) and 15 times more cytotoxic against the A375 cells than the normal BJ cells. Complexes of metronidazole with Ag(I) are considered biocompatible at a concentration below 50 µmol/L.
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Affiliation(s)
- Małgorzata Fabijańska
- Department of Bioinorganic Chemistry, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.S.); (D.Ż.)
| | - Agnieszka J. Rybarczyk-Pirek
- Theoretical and Structural Chemistry Group, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90-236 Lodz, Poland; (A.J.R.-P.); (J.D.)
| | - Justyna Dominikowska
- Theoretical and Structural Chemistry Group, Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90-236 Lodz, Poland; (A.J.R.-P.); (J.D.)
| | - Karolina Stryjska
- Department of Bioinorganic Chemistry, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.S.); (D.Ż.)
| | - Dominik Żyro
- Department of Bioinorganic Chemistry, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.S.); (D.Ż.)
| | | | - Małgorzata Iwona Szynkowska-Jóźwik
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-543 Lodz, Poland;
| | - Justyn Ochocki
- Faculty of Pharmacy, Chair of Medicinal Chemistry, Group of Bioinorganic Chemistry Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland;
| | - Joanna Sikora
- Department of Bioinorganic Chemistry, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.S.); (D.Ż.)
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Nguyen AT, Kim HK. Recent Developments in PET and SPECT Radiotracers as Radiopharmaceuticals for Hypoxia Tumors. Pharmaceutics 2023; 15:1840. [PMID: 37514026 PMCID: PMC10385036 DOI: 10.3390/pharmaceutics15071840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Hypoxia, a deficiency in the levels of oxygen, is a common feature of most solid tumors and induces many characteristics of cancer. Hypoxia is associated with metastases and strong resistance to radio- and chemotherapy, and can decrease the accuracy of cancer prognosis. Non-invasive imaging methods such as positron emission tomography (PET) and single-photon emission computed tomography (SPECT) using hypoxia-targeting radiopharmaceuticals have been used for the detection and therapy of tumor hypoxia. Nitroimidazoles are bioreducible moieties that can be selectively reduced under hypoxic conditions covalently bind to intracellular macromolecules, and are trapped within hypoxic cells and tissues. Recently, there has been a strong motivation to develop PET and SPECT radiotracers as radiopharmaceuticals containing nitroimidazole moieties for the visualization and treatment of hypoxic tumors. In this review, we summarize the development of some novel PET and SPECT radiotracers as radiopharmaceuticals containing nitroimidazoles, as well as their physicochemical properties, in vitro cellular uptake values, in vivo biodistribution, and PET/SPECT imaging results.
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Affiliation(s)
- Anh Thu Nguyen
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
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Sidorenko GV, Miroslavov AE, Tyupina MY. Technetium(I) carbonyl complexes for nuclear medicine: Coordination-chemical aspect. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cardoso ME, Decuadra P, Zeni M, Delfino A, Tejería E, Coppe F, Mesa JM, Daher G, Giglio J, Carrau G, Gamenara D, Alonso O, Terán M, Rey A. Development and Evaluation of 99mTc Tricarbonyl Complexes Derived from Flutamide with Affinity for Androgen Receptor. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020820. [PMID: 36677878 PMCID: PMC9863320 DOI: 10.3390/molecules28020820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/07/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
With the objective to develop a potential 99mTc radiopharmaceutical for imaging the androgen receptor (AR) in prostate cancer, four ligands bearing the same pharmacophore derived from the AR antagonist flutamide were prepared, labeled with 99mTc, and their structures corroborated via comparison with the corresponding stable rhenium analogs. All complexes were obtained with high radiochemical purity. Three of the complexes were highly stable, and, due to their favorable physicochemical properties, were further evaluated using AR-positive and AR-negative cells in culture. All complexes exhibited considerable uptake in AR-positive cells, which could be blocked by an excess of flutamide. The efflux from the cells was moderate. They also showed significantly lower uptakes in AR-negative cells, indicating interactions with the AR receptor. However, the binding affinities were considerably reduced by the coordination to 99mTc, and the complex that exhibited the best biological behavior did not show sufficient specificity towards AR-positive cells.
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Affiliation(s)
- María Elena Cardoso
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Paula Decuadra
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Maia Zeni
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Agustín Delfino
- Organic Chemistry Department, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Emilia Tejería
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Fátima Coppe
- Centro de Medicina Nuclear e Imagenología Molecular-Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Av.Italia s/n, Montevideo CP11400, Uruguay
| | - Juan Manuel Mesa
- Organic Chemistry Department, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Grysette Daher
- Organic Chemistry Department, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Javier Giglio
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Gonzalo Carrau
- Organic Chemistry Department, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Daniela Gamenara
- Organic Chemistry Department, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Omar Alonso
- Centro de Medicina Nuclear e Imagenología Molecular-Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Av.Italia s/n, Montevideo CP11400, Uruguay
| | - Mariella Terán
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
| | - Ana Rey
- Radiochemistry Area, Facultad de Química, Universidad de la República, General Flores 2124, Montevideo CP11800, Uruguay
- Correspondence: ; Tel.: +598-2924-8571
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Multifunctional Silver(I) Complexes with Metronidazole Drug Reveal Antimicrobial Properties and Antitumor Activity against Human Hepatoma and Colorectal Adenocarcinoma Cells. Cancers (Basel) 2022; 14:cancers14040900. [PMID: 35205647 PMCID: PMC8869984 DOI: 10.3390/cancers14040900] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Our previous studies demonstrated that a silver(I) nitrate complex with metronidazole presented greater photo-stability, antimicrobial, cytotoxic and genotoxic properties than silver(I) nitrate. These advantages make the complex a better candidate for clinical therapy than pure salt. Therefore, in this study, we decided to synthetize and determine the chemical, cytotoxic and antimicrobial properties of [Ag(MTZ)2]2SO4, a novel metronidazole silver(I) complex, in comparison with pure salt Ag2SO4 and [Ag(MTZ)2NO3]. The photo-stability, cytotoxicity toward cancer cells and antimicrobial activity of [Ag(MTZ)2]2SO4 is higher than Ag2SO4. What is more, we found that the novel synthetized complex shows better cytotoxicity against cancer cells than [Ag(MTZ)2NO3]. Both complexes have similar biological activity against the majority of tested bacterial strains. Abstract Silver salts and azole derivatives are well known for their antimicrobial properties. Recent evidence has demonstrated also their cytotoxic and genotoxic potential toward both normal and cancer cells. Still, little is known about the action of complexes of azoles with silver(I) salts. Thus, the goal of the study was to compare the chemical, cytotoxic and antimicrobial properties of metronidazole complexes with silver(I) nitrate and silver(I) sulfate to metronidazole and pure silver(I) salts. We synthetized a novel complex, [Ag(MTZ)2]2SO4, and confirmed its chemical structure and properties using 1H and 13C NMR spectroscopy and X-Ray, IR and elemental analysis. To establish the stability of complexes [Ag(MTZ)2NO3] and [Ag(MTZ)2]2SO4, they were exposed to daylight and UV-A rays and were visually assessed. Their cytotoxicity toward human cancer cells (HepG2, Caco-2) and mice normal fibroblasts (Balb/c 3T3 clone A31) was determined by MTT, NRU, TPC and LDH assays. The micro-dilution broth method was used to evaluate their antimicrobial properties against Gram-positive and Gram-negative bacteria. A biofilm eradication study was also performed using the crystal violet method and confocal laser scanning microscopy. The photo-stability of the complexes was higher than silver(I) salts. In human cancer cells, [Ag(MTZ)2]2SO4 was more cytotoxic than Ag2SO4 and, in turn, AgNO3 was more cytotoxic than [Ag(MTZ)2NO3]. For Balb/c 3T3 cells, Ag2SO4 was more cytotoxic than [Ag(MTZ)2]2SO4, while the cytotoxicity of AgNO3 and [Ag(MTZ)2NO3] was similar. Metronidazole in the tested concentration range was non-cytotoxic for both normal and cancer cells. The complexes showed increased bioactivity against aerobic and facultative anaerobic bacteria when compared to metronidazole. For the majority of the tested bacterial strains, the silver(I) salts and complexes showed a higher antibacterial activity than MTZ; however, some bacterial strains presented the reverse effect. Our results showed that silver(I) complexes present higher photo-stability, cytotoxicity and antimicrobial activity in comparison to MTZ and, to a certain extent, to silver(I) salts.
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Su H, Chu T. Synthesis and Bioevaluation of the Cyclopentadienyl Tricarbonyl Technetium-99m 2-Nitroimidazole Derivatives for Tumor Hypoxia Imaging. Bioorg Med Chem Lett 2022; 60:128583. [PMID: 35085720 DOI: 10.1016/j.bmcl.2022.128583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/03/2022] [Accepted: 01/19/2022] [Indexed: 11/02/2022]
Abstract
Hypoxia imaging agents can play an important role in the tumor treatment by avoiding the worse effect of radiotherapy and chemotherapy due to the tumor hypoxia. Due to the small size and easy coordination, tricarbonyl technetium-99m can be used to label a wide range of imaging agents. In this work, the tricarbonyl 99mTc labeled small-sized hypoxia imaging agents containing 2-nitroimidazoles were prepared, which have different carbon chain lengths between cyclopentadienyl and 2-nitroimidazole, and which have one or two 2-nitroimidazole groups. The results of S180 cell experiment and biodistribution indicated that these molecules have different hypoxic selectivity. When contains one 2-nitroimidazole, as the carbon chain lengthens, which means the molecular volume becomes larger, hypoxia cellular uptake and selectivity decrease in S180 cell uptake experiment. In biodistribution study in mice bearing S180 tumor, Tc-2 (1-cyclopentadienyl-5-(2-nitro-1H-imidazol-1-yl)-pentan-1-one tricarbonyl 99mTc complex), which has intermediate carbon chain, is better due to the more complex factors. Its tumor/blood (T/B) ratio is 3.56±0.25, tumor/muscle(T/M) ratio is 1.73±0.29 and tumor uptake is 2.23±0.24 %ID/g at 2 h. Comparing to other tricarbonyl technetium complexes containing one 2-nitroimidazole, the complexes in this work have an advantage in tumor/blood ratio and tumor uptake. This suggests that the small-volume cyclopentadienyl may have an advantage when used as a ligand. When contains two 2-nitroimidazole groups, the complex, 1-cyclopentadienyl-5-di(2-(2-nitro-1H-imidazol-1-yl)ethyl)amino-pentan-1-one tricarbonyl 99mTc complex (Tc-4), has the better results in the cell experiment than those which contain one 2-nitroimidazole group. Thus the hypoxia imaging agent contains two 2-nitroimidazole groups is more advantageous, but further modifications of Tc-4 are needed to improve its clearance rate in the blood, because the increased lipophilicity leads to a decrease in the T/B ratio of Tc-4. In conclusion, small volume hypoxia imaging agents with two 2-nitroimidazole groups may be the trend of development.
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Affiliation(s)
- Hang Su
- 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.
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99mTc Labelling Strategies for the Development of Potential Nitroimidazolic Hypoxia Imaging Agents. INORGANICS 2019. [DOI: 10.3390/inorganics7110128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Technetium-99m has a rich coordination chemistry that offers many possibilities in terms of oxidation states and donor atom sets. Modifications in the structure of the technetium complexes could be very useful for fine tuning the physicochemical and biological properties of potential 99mTc radiopharmaceuticals. However, systematic study of the influence of the labelling strategy on the “in vitro” and “in vivo” behaviour is necessary for a rational design of radiopharmaceuticals. Herein we present a review of the influence of the Tc complexes’ molecular structure on the biodistribution and the interaction with the biological target of potential nitroimidazolic hypoxia imaging radiopharmaceuticals presented in the literature from 2010 to the present. Comparison with the gold standard [18F]Fluoromisonidazole (FMISO) is also presented.
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Okoye NC, Baumeister JE, Najafi Khosroshahi F, Hennkens HM, Jurisson SS. Chelators and metal complex stability for radiopharmaceutical applications. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-3090] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Diagnostic and therapeutic nuclear medicine relies heavily on radiometal nuclides. The most widely used and well-known radionuclide is technetium-99m (99mTc), which has dominated diagnostic nuclear medicine since the advent of the 99Mo/99mTc generator in the 1960s. Since that time, many more radiometals have been developed and incorporated into potential radiopharmaceuticals. One critical aspect of radiometal-containing radiopharmaceuticals is their stability under in vivo conditions. The chelator that is coordinated to the radiometal is a key factor in determining radiometal complex stability. The chelators that have shown the most promise and are under investigation in the development of diagnostic and therapeutic radiopharmaceuticals over the last 5 years are discussed in this review.
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Affiliation(s)
| | | | | | - Heather M. Hennkens
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
- University of Missouri Research Reactor Center , Columbia, MO 65211 , USA
| | - Silvia S. Jurisson
- Department of Chemistry , University of Missouri , Columbia, MO 65211 , USA
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Faghih-Mirzaei E, Sabouri S, Zeidabadinejad L, AbdolahRamazani S, Abaszadeh M, Khodadadi A, Shamsadinipour M, Jafari M, Pirhadi S. Metronidazole aryloxy, carboxy and azole derivatives: Synthesis, anti-tumor activity, QSAR, molecular docking and dynamics studies. Bioorg Med Chem 2019; 27:305-314. [DOI: 10.1016/j.bmc.2018.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/27/2018] [Accepted: 12/03/2018] [Indexed: 01/11/2023]
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Hövener JB, Pravdivtsev AN, Kidd B, Bowers CR, Glöggler S, Kovtunov KV, Plaumann M, Katz-Brull R, Buckenmaier K, Jerschow A, Reineri F, Theis T, Shchepin RV, Wagner S, Bhattacharya P, Zacharias NM, Chekmenev EY. Parahydrogen-Based Hyperpolarization for Biomedicine. Angew Chem Int Ed Engl 2018; 57:11140-11162. [PMID: 29484795 PMCID: PMC6105405 DOI: 10.1002/anie.201711842] [Citation(s) in RCA: 227] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/14/2018] [Indexed: 12/22/2022]
Abstract
Magnetic resonance (MR) is one of the most versatile and useful physical effects used for human imaging, chemical analysis, and the elucidation of molecular structures. However, its full potential is rarely used, because only a small fraction of the nuclear spin ensemble is polarized, that is, aligned with the applied static magnetic field. Hyperpolarization methods seek other means to increase the polarization and thus the MR signal. A unique source of pure spin order is the entangled singlet spin state of dihydrogen, parahydrogen (pH2 ), which is inherently stable and long-lived. When brought into contact with another molecule, this "spin order on demand" allows the MR signal to be enhanced by several orders of magnitude. Considerable progress has been made in the past decade in the area of pH2 -based hyperpolarization techniques for biomedical applications. It is the goal of this Review to provide a selective overview of these developments, covering the areas of spin physics, catalysis, instrumentation, preparation of the contrast agents, and applications.
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Affiliation(s)
- Jan-Bernd Hövener
- Section Biomedical Imaging, Molecular Imaging North Competence Center (MOIN CC), Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel University, Am Botanischen Garten 14, 24118, Kiel, Germany
| | - Andrey N Pravdivtsev
- Section Biomedical Imaging, Molecular Imaging North Competence Center (MOIN CC), Department of Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel University, Am Botanischen Garten 14, 24118, Kiel, Germany
| | - Bryce Kidd
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL, 62901, USA
| | - C Russell Bowers
- Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Stefan Glöggler
- Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, Von-Siebold-Strasse 3A, 37075, Göttingen, Germany
| | - Kirill V Kovtunov
- International Tomography Center SB RAS, 630090, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Pirogova St. 2, 630090, Novosibirsk, Russia
| | - Markus Plaumann
- Department of Biometry and Medical Informatics, Otto-von-Guericke University of Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany
| | - Rachel Katz-Brull
- Department of Radiology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Kai Buckenmaier
- Magnetic resonance center, Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
| | - Alexej Jerschow
- Department of Chemistry, New York University, 100 Washington Sq. East, New York, NY, 10003, USA
| | - Francesca Reineri
- Department of Molecular Biotechnology and Health Sciences, University of Torino, via Nizza 52, Torino, Italy
| | - Thomas Theis
- Department of Chemistry & Department of Physics, Duke University, Durham, NC, 27708, USA
| | - Roman V Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS), Department of Radiology and Radiological Sciences, 1161 21st Ave South, MCN AA-1105, Nashville, TN, 37027, USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute, Cedars Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Pratip Bhattacharya
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Niki M Zacharias
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Eduard Y Chekmenev
- Russian Academy of Sciences (RAS), Leninskiy Prospekt 14, Moscow, 119991, Russia
- Department of Chemistry, Karmanos Cancer Institute (KCI) and Integrative Biosciences (Ibio), Wayne State University, Detroit, MI, 48202, USA
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Lin X, Ruan Q, Zhang X, Duan X, Teng Y, Zhang J. 99mTc labelled complexes with secnidazole xanthate: Synthesis and evaluation as potential radiotracers to target tumor hypoxia. Appl Radiat Isot 2018; 140:289-293. [PMID: 30092554 DOI: 10.1016/j.apradiso.2018.07.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 06/14/2018] [Accepted: 07/29/2018] [Indexed: 12/23/2022]
Abstract
In this study, the commercially available secnidazole was successfully converted to secnidazole xanthate (SNXT), in which the xanthate group can act as a bifunctional chelator to coordinate with 99mTc. 99mTc-nitrido complex of SNXT(99mTcN-SNXT) and 99mTc-oxo complex of SNXT(99mTcO-SNXT) were prepared with high radiochemical purity. Both of the complexes were found to be stable in vitro and to exhibit similar hydrophilicity. In addition, comparative in vitro cell uptake studies under anoxic and normoxic conditions demonstrated that both agents were preferentially taken up by hypoxic cells. Biodistribution studies in mice bearing S180 tumor showed 99mTcO-SNXT exhibited a higher tumor uptake and tumor-to-muscle ratio than 99mTcN-SNXT. Furthermore, in SPECT imaging study, 99mTcO-SNXT exhibited a clear accumulation in tumor at 2 h post-injection, suggesting its potential to be a novel hypoxia imaging agent.
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Affiliation(s)
- Xiao Lin
- College of Water Sciences, Beijing Normal University, No 19, Xinjiekouwai Street, Beijing 100875, PR China; Key Laboratory of Radiopharmaceuticals (Beijing Normal University), Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | - Qing Ruan
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University), Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | - Xuran Zhang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University), Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China; Department of Isotopes, China Institute of Atomic Energy, Beijing 102413, PR China
| | - Xiaojiang Duan
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University), Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, No 19, Xinjiekouwai Street, Beijing 100875, PR China
| | - Junbo Zhang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University), Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, PR China.
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Hövener J, Pravdivtsev AN, Kidd B, Bowers CR, Glöggler S, Kovtunov KV, Plaumann M, Katz‐Brull R, Buckenmaier K, Jerschow A, Reineri F, Theis T, Shchepin RV, Wagner S, Bhattacharya P, Zacharias NM, Chekmenev EY. Parawasserstoff‐basierte Hyperpolarisierung für die Biomedizin. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711842] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jan‐Bernd Hövener
- Sektion Biomedizinische Bildgebung, Molecular Imaging North Competence Center (MOIN CC) Klinik für Radiologie und Neuroradiologie Universitätsklinikum Schleswig-Holstein, Christian-Albrechts-Universität Kiel Am Botanischen Garten 14 24118 Kiel Deutschland
| | - Andrey N. Pravdivtsev
- Sektion Biomedizinische Bildgebung, Molecular Imaging North Competence Center (MOIN CC) Klinik für Radiologie und Neuroradiologie Universitätsklinikum Schleswig-Holstein, Christian-Albrechts-Universität Kiel Am Botanischen Garten 14 24118 Kiel Deutschland
| | - Bryce Kidd
- Department of Chemistry and Biochemistry Southern Illinois University Carbondale IL 62901 USA
| | - C. Russell Bowers
- Department of Chemistry University of Florida Gainesville FL 32611 USA
| | - Stefan Glöggler
- Max Planck-Institut für Biophysikalische Chemie Am Fassberg 11 37077 Göttingen Deutschland
- Center for Biostructural Imaging of Neurodegeneration Von-Siebold-Straße 3A 37075 Göttingen Deutschland
| | - Kirill V. Kovtunov
- International Tomography Center SB RAS 630090 Novosibirsk Russland
- Department of Natural Sciences Novosibirsk State University Pirogova St. 2 630090 Novosibirsk Russland
| | - Markus Plaumann
- Institut für Biometrie und Medizinische Informatik Otto-von-Guericke-Universität Magdeburg Leipziger Straße 44 39120 Magdeburg Deutschland
| | - Rachel Katz‐Brull
- Department of Radiology Hadassah-Hebrew University Medical Center Jerusalem Israel
| | - Kai Buckenmaier
- Magnetresonanz-Zentrum Max Planck-Institut für biologische Kybernetik Tübingen Deutschland
| | - Alexej Jerschow
- Department of Chemistry New York University 100 Washington Sq. East New York NY 10003 USA
| | - Francesca Reineri
- Department of Molecular Biotechnology and Health Sciences University of Torino via Nizza 52 Torino Italien
| | - Thomas Theis
- Department of Chemistry & Department of Physics Duke University Durham NC 27708 USA
| | - Roman V. Shchepin
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology and Radiological Sciences 1161 21st Ave South, MCN AA-1105 Nashville TN 37027 USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute Cedars Sinai Medical Center Los Angeles CA 90048 USA
| | - Pratip Bhattacharya
- Department of Cancer Systems Imaging University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Niki M. Zacharias
- Department of Cancer Systems Imaging University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Eduard Y. Chekmenev
- Vanderbilt University Institute of Imaging Science (VUIIS) Department of Radiology and Radiological Sciences 1161 21st Ave South, MCN AA-1105 Nashville TN 37027 USA
- Russian Academy of Sciences (RAS) Leninskiy Prospekt 14 Moscow 119991 Russland
- Department of Chemistry, Karmanos Cancer Institute (KCI) and Integrative Biosciences (Ibio) Wayne State University Detroit MI 48202 USA
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Zhang Q, Zhang Q, Guan Y, Liu S, Chen Q, Li X. Synthesis and Biological Evaluation of a New Nitroimidazole-99mTc-Complex for Imaging of Hypoxia in Mice Model. Med Sci Monit 2016; 22:3778-3791. [PMID: 27752036 PMCID: PMC5072380 DOI: 10.12659/msm.898659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND This study was specifically designed to develop a new 99mTc compound with 3-amino-4-[2-(2-methyl-5-nitro-1H-imidazol)-ethylamino]-4-oxo-butyrate (5-ntm-asp) and to verify whether this compound is feasible to be a radiopharmaceutical for hypoxic tumors. MATERIAL AND METHODS Metronidazole derivative 5-ntm-asp was synthesized and then radio-labeled by Na [99mTcO4], forming 99mTc-5-ntm-asp. Another two complexes of 99mTc-2- and 99mTc-5-nitroimidazole-iminodiacetic acid (99mTc-2-ntm-IDA and 99mTc-5-ntm-IDA) were also synthesized based on previous studies. Physicochemical properties (stability, lipophilicity, protein binding) of the compounds were compared, and we also assessed the accumulation status of the compounds within A549 cells under both hypoxic and aerobic conditions. Distribution of the complex was also studied in vivo using BALB/c nude mice that were injected with A549 cells. RESULTS Compared with 99mTc-2-ntm-IDA and 99mTc-5-ntm-IDA, 99mTc-5-ntm-asp was more stable in both phosphate-buffered saline (PBS) buffer and human plasma (P<0.05). Besides that, 99mTc-5-ntm-asp offered lower lipophilicity and protein-binding rate than the two complexes (P<0.05). During assessment of hypoxic uptake status and high hypoxic/aerobic ratio in mice injected with A549 cells, 99mTc-5-ntm-asp exhibited a more favorable profile than 9mTc-2-ntm-IDA and 99mTc-5-ntm-IDA, including uptake ratio of tumor/blood and uptake ratio of tumor/muscle. CONCLUSIONS With overall consideration of physicochemical properties and biological uptake behavior, it is feasible to use 99mTc-5-ntm-asp as an imaging agent for tumor hypoxia.
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Affiliation(s)
- Qing Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Qing Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Yanxing Guan
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Shaozheng Liu
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Qingjie Chen
- Department of Nuclear Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Xiangmin Li
- Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang, Jiangxi, China (mainland)
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Kit formulation for preparation and biological evaluation of a novel 99m Tc-oxo complex with metronidazole xanthate for imaging tumor hypoxia. Nucl Med Biol 2016; 43:165-70. [DOI: 10.1016/j.nucmedbio.2015.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 10/06/2015] [Accepted: 11/03/2015] [Indexed: 11/18/2022]
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Neutral 99mTc(CO)3 complexes of “clicked” nitroimidazoles for the detection of tumor hypoxia. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4135-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li Z, Song X, Zhang J. Synthesis and biological evaluation of novel 99mTc labeled ornidazole xanthate complexes as potential hypoxia imaging agents. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4125-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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