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Mardanshahi A, Vaseghi S, Hosseinimehr SJ, Abedi SM, Molavipordanjani S. 99mTc(CO) 3-labeled 1-(2-Pyridyl)piperazine derivatives as radioligands for 5-HT 7 receptors. Ann Nucl Med 2024; 38:139-153. [PMID: 38032496 DOI: 10.1007/s12149-023-01885-2] [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: 07/09/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND The 5-hydroxytryptamine receptor (5-HTR) family includes seven classes of receptors. The 5-HT7R is the newest member of this family and contributes to different physiological and pathological processes. As a pathology, glioblastoma multiform (GBM) overexpresses 5-HT7R; hence, this study aims to develop radiolabeled aryl piperazine derivatives as 5-HT7R imaging agents. METHODS: Compounds 6 and 7 as 1-(3-nitropyridin-2-yl)piperazine derivatives were radiolabeled with fac-[99mTc(CO)3(H2O)3]+ and 99mTc(CO)3-[6] and 99mTc(CO)3-[7] were obtained with high radiochemical purity (RCP > 94%). The stability of the radiotracers was evaluated in both saline and mouse serum. Specific binding on different cell lines including U-87 MG, MCF-7, SKBR3, and HT-29 was performed. The biodistribution of these radiotracers was evaluated in normal and U-87 MG Xenografted models. Finally, 99mTc(CO)3-[6] and 99mTc(CO)3-[7] were applied for in vivo imaging in U-87 MG Xenografted models. RESULTS Specific binding study indicates that 99mTc(CO)3-[6] and 99mTc(CO)3-[7] can recognize 5-HT7R of U87-MG cell line. The biodistribution study in normal mice indicates that the brain uptake of 99mTc(CO)3-[6] and 99mTc(CO)3-[7] is the highest at 30 min post-injection (0.8 ± 0.25 and 0.64 ± 0.18%ID/g, respectively). The data of the biodistribution study in the U87-MG xenograft model revealed that these radiotracers could accumulate in the tumor site, and the highest tumor uptake was observed at 60 min post-injection (3.38 ± 0.65 and 3.27 ± 0.5%ID/g, respectively). The injection of pimozide can block the tumor's radiotracer uptake, indicating the binding of these radiotracers to the 5-HT7R. The imaging study in the xenograft model also confirms the biodistribution data. The acquired images clearly show the tumor site, and the tumor-to-muscle ratio for 99mTc(CO)3-[6] and 99mTc(CO)3-[7] at 60 min was 3.33 and 3.88, respectively. CONCLUSIONS: 99mTc(CO)3-[6] and 99mTc(CO)3-[7] can visualize tumor in the U87-MG xenograft model due to their affinity toward 5-HT7R.
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Affiliation(s)
- Alireza Mardanshahi
- Department of Radiology and Nuclear Medicine, Faculty of Medicine, Cardiovascular Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Samaneh Vaseghi
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Seyed Jalal Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Mohammad Abedi
- Department of Radiology and Nuclear Medicine, Faculty of Medicine, Cardiovascular Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sajjad Molavipordanjani
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran.
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Shegani A, Ischyropoulou M, Roupa I, Kiritsis C, Makrypidi K, Papasavva A, Raptopoulou C, Psycharis V, Hennkens HM, Pelecanou M, Papadopoulos MS, Pirmettis I. Synthesis and evaluation of new mixed "2 + 1" Re, 99mTc and 186Re tricarbonyl dithiocarbamate complexes with different monodentate ligands. Bioorg Med Chem 2021; 47:116373. [PMID: 34467870 DOI: 10.1016/j.bmc.2021.116373] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 11/24/2022]
Abstract
A series of "2 + 1" mixed ligand tricarbonyl complexes of the general formula fac-[Re/99mTc/186Re(CO)3(DDTC)(L)] containing diethyldithiocarbamate (DDTC) as a monoanionic bidentate ligand and a series of monodentate ligands L was synthesized, characterized and evaluated. The impact of ligand L on the radiochemical yield (RCY) and biodistribution of the final compounds was also investigated. DDTC and the appropriate L ligand [cyclohexyl isocyanide (cisc), tert-butyl isocyanide (tbi), triphenylphosphine (PPh3), methyldiphenylphosphine (PPh2Me), triphenylarsine (AsPh3), imidazole (im), and 4-aminopyridine (4AP)] readily reacted in equimolar amounts with the [Et4N]2[Re(CO)3Br3] precursor to afford fac-[Re(CO)3(DDTC)(cisc)], Re1, fac-[Re(CO)3(DDTC)(tbi)], Re2, fac-[Re(CO)3(DDTC)(PPh3)], Re3, fac-[Re(CO)3(DDTC)(PPh2Me)], Re4, fac-[Re(CO)3(DDTC)(AsPh3)], Re5, fac-[Re(CO)3(DDTC)(im)], Re6 and fac-[Re(CO)3(DDTC)(4AP)], Re7, complexes in high yields (>80%). All Re complexes were fully characterized by IR, NMR, and in addition Re4, Re5, and Re7 with X-ray crystallography. Analogous reactions as performed with Re were subsequently explored on the 99mTc and 186Re-tracer levels using the corresponding fac-[99mTc/186Re(CO)3(H2O)3]+ precursor. Complexes 99mTc1 - 99mTc5, 186Re1 and 186Re3 were obtained in high radiochemical yield (>91%), while the complexes 99mTc6, 99mTc7 and 186Re7 formed with radiochemical yields of 55%, 28%, and 75%, respectively. The 99mTc and 186Re-complexes were characterized by comparative HPLC analysis using the analogous Re complexes. During histidine and cysteine challenge experiments at 37 °C through 6 h, complexes 99mTc1 - 99mTc5 remained > 92% stable, while complexes 99mTc6 and 99mTc7 remained only 8% stable through 3 h. Similar studies for 186Re-complexes showed that 186Re1 and 186Re3 remained > 95% stable for up to 48 h, while 186Re7 had decreased to 7% after 3 h. LogD7.4 data of 99mTc1 - 99mTc5, 186Re1, and 186Re3 complexes, which ranged from 2.59 to 3.39, suggested high lipophilicity. Biodistribution studies in healthy Swiss albino mice showed hepatobiliary excretion for 99mTc1, 99mTc2, and 99mTc4, fast blood clearance for 99mTc4, while high liver uptake and retention for 99mTc3 and 99mTc5 were measured. Moreover, 99mTc2 showed high accumulation in the lungs with sustained retention (52.80% ID/g at 4 h p.i.) and significant brain uptake at 2 min p.i. (1.89% ID/g). The study showed the great influence of monodentate ligand in the synthesis and biodistribution of the mixed ligand complexes.
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Affiliation(s)
- Antonio Shegani
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece; Research Reactor Center, University of Missouri, Columbia, MO 65211, United States
| | - Myrto Ischyropoulou
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Ioanna Roupa
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Christos Kiritsis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Konstantina Makrypidi
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Afroditi Papasavva
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Catherine Raptopoulou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Heather M Hennkens
- Research Reactor Center, University of Missouri, Columbia, MO 65211, United States; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States
| | - Maria Pelecanou
- Institute of Biosciences & Applications, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Minas S Papadopoulos
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Ioannis Pirmettis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece.
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Gan Q, Zhang X, Ruan Q, Fang S, Zhang J. 99mTc-CN7DG: A Highly Expected SPECT Imaging Agent of Cancer with Satisfactory Tumor Uptake and Tumor-to-Nontarget Ratios. Mol Pharm 2021; 18:1356-1363. [PMID: 33586982 DOI: 10.1021/acs.molpharmaceut.0c01177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel glucose derivative (CN7DG) possessing an isonitrile as a coordinating group was synthesized, and 99mTc-CN7DG, which was expected to be a powerful tumor imaging agent for SPECT, was prepared in a kit by the reaction of CN7DG with SnCl2·2H2O and 99mTcO4-. 99mTc-CN7DG exhibited good stability and was transported via glucose transporters. Biodistribution results in mice bearing A549 tumor models showed that 99mTc-CN7DG had a higher uptake at the tumor sites and better tumor/blood and tumor/muscle ratios than did [18F]FDG and 99mTc-CN5DG. SPECT/CT imaging studies showed obvious accumulation in tumor sites, suggesting that 99mTc-CN7DG is a promising candidate for tumor imaging. Because 99mTc and 188Re stand for a "theranostic pair", 188Re-CN7DG is expected to be prepared as a promising agent for tumor therapy.
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Affiliation(s)
- Qianqian Gan
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Xuran Zhang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Qing Ruan
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Si'an Fang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Junbo Zhang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
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Duan X, Ruan Q, Gan Q, Song X, Fang S, Zhang X, Zhang J. Radiosynthesis and evaluation of novel 99mTc(CO)3-labelled thymidine dithiocarbamate derivatives for tumor imaging with SPECT. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Duan X, Gan Q, Song X, Fang S, Zhang X, Ruan Q, Zhang J. Synthesis and biological evaluation of novel 99m
Tc-oxo and 99m
Tc-tricarbonyl complexes with C3′-functionalized thymidine dithiocarbamate for tumor imaging. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaojiang Duan
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Qianqian Gan
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Xiaoqing Song
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Si'an Fang
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Xuran Zhang
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
- Department of Isotopes; China Institute of Atomic Energy; P. O. Box 2108 Beijing 102413 China
| | - Qing Ruan
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
| | - Junbo Zhang
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry; Beijing Normal University; Beijing 100875 China
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Liu T, Gan Q, Zhang J, Jin Z, Zhang W, Zhang Y. Synthesis and biodistribution of novel 99mTcN complexes of glucose dithiocarbamate as potential probes for tumor imaging. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00127k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
99mTcN-3b can be prepared from a kit without the need for purification and would be a promising tumor imaging agent.
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Affiliation(s)
- Teli Liu
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Qianqian Gan
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Junbo Zhang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Zhonghui Jin
- Nuclear Medicine Department
- Peking University 3rd Hospital
- Beijing 100191
- PR China
| | - Weifang Zhang
- Nuclear Medicine Department
- Peking University 3rd Hospital
- Beijing 100191
- PR China
| | - Yanyan Zhang
- Nuclear Medicine Department
- Peking University 3rd Hospital
- Beijing 100191
- PR China
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Li Z, Zhang J, Jin Z, Zhang W, Zhang Y. Synthesis and biodistribution of novel 99mTc labeled 4-nitroimidazole dithiocarbamate complexes as potential agents to target tumor hypoxia. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00042d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
99mTcO-N4IPDTC was prepared from a kit without the need for purification and would be a promising hypoxia imaging agent.
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Affiliation(s)
- Zhenxiang Li
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Junbo Zhang
- Key Laboratory of Radiopharmaceuticals (Beijing Normal University)
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing
| | - Zhonghui Jin
- Nuclear Medicine Department
- Peking University 3rd Hospital
- Beijing 100191
- PR China
| | - Weifang Zhang
- Nuclear Medicine Department
- Peking University 3rd Hospital
- Beijing 100191
- PR China
| | - Yanyan Zhang
- Nuclear Medicine Department
- Peking University 3rd Hospital
- Beijing 100191
- PR China
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