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Fang Y, Li Y, Liang H, Li W, Zhang H. Preparation and Preliminary Evaluation of a Promising 99mTc-Labeled Isonitrile-Containing 6-Thia-Fatty Acid Derivative for Myocardial Metabolism Imaging. J Med Chem 2023; 66:3953-3967. [PMID: 36950862 DOI: 10.1021/acs.jmedchem.2c01853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
For over 40 years, none of the previous 99mTc-labeled fatty acids for myocardial imaging has potential clinical use. 99mTc-(C10-6-thia-CO2H)(MIBI)5 is the first 99mTc-labeled fatty acid to exhibit good myocardial uptake (2.06 ± 0.06%ID/g) at 60 min post injection, high heart-to-liver ratio (6.43 ± 1.85 and 9.68 ± 0.76), high heart-to-lung ratio (9.48 ± 1.39 and 11.02 ± 0.89), and high heart-to-blood ratio (164.01 ± 43.51 and 197.36 ± 32.29) at 60 and 120 min in Sprague-Dawley (SD) rats, respectively. It also demonstrated excellent myocardial imaging quality. The above target-to-nontarget ratios exceeded those of [123I]BMIPP and were higher than or close to those of 99mTc-MIBI at 60 and 120 min. Most of 99mTc-(C10-6-thia-CO2H)(MIBI)5 was partially β-oxidized to protein-bound metabolites in myocardium. Administration of trimetazidine dihydrochloride (TMZ, a fatty acid β-oxidation inhibitor) to rats caused 51% reduction in the myocardial uptake of 99mTc-(C10-6-thia-CO2H)(MIBI)5 and 61% reduction in the distribution of 99mTc-radioactivity in a residual tissue pellet at 60 min, indicating its considerable sensitivity to myocardial fatty acid β-oxidation.
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Affiliation(s)
- Yu Fang
- College of Chemistry, Beijing Normal University, No.19 Xinjiekouwai Street, Haidian District, Beijing 100875, People's Republic of China
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, No.436 Xian'ge Avenue, Anyang, Henan 455000, People's Republic of China
| | - Ye Li
- College of Chemistry, Beijing Normal University, No.19 Xinjiekouwai Street, Haidian District, Beijing 100875, People's Republic of China
| | - Huaju Liang
- College of Chemistry, Beijing Normal University, No.19 Xinjiekouwai Street, Haidian District, Beijing 100875, People's Republic of China
| | - Wenyan Li
- College of Chemistry, Beijing Normal University, No.19 Xinjiekouwai Street, Haidian District, Beijing 100875, People's Republic of China
| | - Huabei Zhang
- College of Chemistry, Beijing Normal University, No.19 Xinjiekouwai Street, Haidian District, Beijing 100875, People's Republic of China
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2
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Effendi N, Mishiro K, Wakabayashi H, Gabryel-Skrodzka M, Shiba K, Taki J, Jastrząb R, Kinuya S, Ogawa K. Synthesis and evaluation of radiogallium-labeled long-chain fatty acid derivatives as myocardial metabolic imaging agents. PLoS One 2021; 16:e0261226. [PMID: 34910775 PMCID: PMC8673672 DOI: 10.1371/journal.pone.0261226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/25/2021] [Indexed: 11/18/2022] Open
Abstract
Since long-chain fatty acids work as the primary energy source for the myocardium, radiolabeled long-chain fatty acids play an important role as imaging agents to diagnose metabolic heart dysfunction and heart diseases. With the aim of developing radiogallium-labeled fatty acids, herein four fatty acid-based tracers, [67Ga]Ga-HBED-CC-PDA, [67Ga]Ga-HBED-CC-MHDA, [67Ga]Ga-DOTA-PDA, and [67Ga]Ga-DOTA-MHDA, which are [67Ga]Ga-HBED-CC and [67Ga]Ga-DOTA conjugated with pentadecanoic acid (PDA) and 3-methylhexadecanoic acid (MHDA), were synthesized, and their potential for myocardial metabolic imaging was evaluated. Those tracers were found to be chemically stable in 0.1 M phosphate buffered saline. Initial [67Ga]Ga-HBED-CC-PDA, [67Ga]Ga-HBED-CC-MHDA, [67Ga]Ga-DOTA-PDA, and [67Ga]Ga-DOTA-MHDA uptakes in the heart at 0.5 min postinjection were 5.01 ± 0.30%ID/g, 5.74 ± 1.02%ID/g, 5.67 ± 0.22%ID/g, and 5.29 ± 0.10%ID/g, respectively. These values were significantly lower than that of [123I]BMIPP (21.36 ± 2.73%ID/g). For their clinical application as myocardial metabolic imaging agents, further structural modifications are required to increase their uptake in the heart.
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Affiliation(s)
- Nurmaya Effendi
- Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, Japan
- Faculty of Pharmacy, Universitas Muslim Indonesia, Makassar, South Sulawesi, Indonesia
| | - Kenji Mishiro
- Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, Japan
| | - Hiroshi Wakabayashi
- Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, Japan
| | | | - Kazuhiro Shiba
- Research Center for Experimental Modeling of Human Disease, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, Japan
| | - Junichi Taki
- Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, Japan
| | - Renata Jastrząb
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Poznan, Poland
| | - Seigo Kinuya
- Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa University, Takara-machi, Kanazawa, Ishikawa, Japan
| | - Kazuma Ogawa
- Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, Japan
- Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, Japan
- * E-mail:
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Jain A, Mathur A, Pandey U, Sarma HD, Dash A. Synthesis and evaluation of 68Ga labeled palmitic acid for cardiac metabolic imaging. Appl Radiat Isot 2018; 140:35-40. [PMID: 29936274 DOI: 10.1016/j.apradiso.2018.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/17/2018] [Accepted: 06/03/2018] [Indexed: 11/26/2022]
Abstract
This work evaluates the potential of a 68Ga labeled long chain 16C fatty acid for cardiac metabolic imaging. For radiolabeling with 68Ga, hexadecanedioic acid was coupled with the chelator p-NH2-Bn-NOTA. Under the optimized conditions, NOTA-hexadecanoic acid could be radiolabeled with 68Ga in ≥95% yields. In biodistribution studies carried out in Swiss mice, 68Ga-NOTA-hexadecanoic acid showed low myocardial uptake at 2 min p.i. (3.7 ± 1.3%ID/g). While 68Ga-NOTA-hexadecanoic acid cleared rapidly from non-target organs such as blood, lungs, intestine and kidney, wash out from liver was slow. Radio-HPLC analyses of myocardial extracts of rats injected with 68Ga-NOTA-hexadecanoic acid confirmed its metabolic transformation in the myocardium.
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Affiliation(s)
- Akanksha Jain
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Anupam Mathur
- Radiopharmaceuticals Program, Board of Radiation and Isotope Technology, Navi Mumbai 400703, India
| | - Usha Pandey
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| | - Haladhar Dev Sarma
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
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4
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Brown adipose tissue and lipid metabolism imaging. Methods 2017; 130:105-113. [DOI: 10.1016/j.ymeth.2017.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 04/28/2017] [Accepted: 05/05/2017] [Indexed: 01/20/2023] Open
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5
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Synthesis and biological evaluation of fatty acid derivatives for myocardial imaging containing [99mTc(CO)3]+. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5258-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Jain A, Mathur A, Pandey U, Sarma HD, Dash A. 68Ga labeled fatty acids for cardiac metabolic imaging: Influence of different bifunctional chelators. Bioorg Med Chem Lett 2016; 26:5785-5791. [PMID: 27793567 DOI: 10.1016/j.bmcl.2016.10.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 08/18/2016] [Accepted: 10/14/2016] [Indexed: 02/02/2023]
Abstract
Development of 68Ga labeled fatty acids is of immense interest due to the availability of 68Ga through a generator and its superiority over SPECT based tracers in carrying out dynamic imaging on a PET scanner. Our present work explores the influence of different chelators on the cardiac uptake and pharmacokinetics of the 68Ga-labeled fatty acids. Two new 68Ga labeled fatty acids were synthesized by conjugation of 11-aminoundecanoic acid with the bifunctional chelators (BFCs) viz. p-SCN-Bn-DTPA (S-2-(4-isothiocyanatobenzyl)-diethylenetriaminepentaacetic acid) and p-SCN-Bn-NODAGA (S-2-(4-isothiocyanatobenzyl)-1,4,7-triazacyclononane-1-glutaric acid-4,7-acetic acid) and their comparison was carried out with the previously reported 68Ga-NOTA-undecanoic acid. Both the conjugates were radiolabeled with 68Ga in high yields and purities (>95%). Their formation was established by preparation and characterization of their inactive analogs with natGa at macroscopic levels. Biodistribution studies of the complexes in Swiss mice showed lower initial myocardial uptake for 68Ga-NODAGA-undecanoic acid (3.8±0.6%ID/g) and 68Ga-DTPA-undecanoic acid (1.3±0.5%ID/g) complexes in comparison to previously reported 68Ga-NOTA-undecanoic acid complex (7.4±2.8%ID/g) at 2min p.i. However, significant retention of the tracer in the myocardium was observed in the case of 68Ga-NODAGA-undecanoic complex, which led to improved heart/non-target ratios of the complex over time in comparison to the other 68Ga complexes. Similarly, the DTPA complex exhibited increased washout from the liver in comparison to other 68Ga derivatives. The β oxidation mechanism in myocytes was investigated by isolating the myocardial extract post intravenous injection of the respective 68Ga complexes and analyzing them by radio-HPLC, which showed metabolic transformation of the parent fatty acid complex peak in all the three complexes. This study has provided an insight into the design characteristics of 68Ga labeled fatty acids to achieve the desired myocardial imaging characteristics.
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Affiliation(s)
- Akanksha Jain
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Anupam Mathur
- Radiopharmaceuticals Program, Board of Radiation and Isotope Technology, Navi Mumbai 400 703, India
| | - Usha Pandey
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Haladhar Dev Sarma
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
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Dong H, Yan GL, Han Y, Sun H, Zhang AH, Li XN, Wang XJ. UPLC-Q-TOF/MS-based metabolomic studies on the toxicity mechanisms of traditional Chinese medicine Chuanwu and the detoxification mechanisms of Gancao, Baishao, and Ganjiang. Chin J Nat Med 2015; 13:687-98. [PMID: 26412429 DOI: 10.1016/s1875-5364(15)30067-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Indexed: 01/11/2023]
Abstract
Chuanwu (CW), a famous traditional Chinese medicine (TCM) from the mother roots of Aconitum carmichaelii Debx.. (Ranunculaceae), has been used for the treatment of various diseases. Unfortunately, its toxicity is frequently reported because of its narrow therapeutic window. In the present study, a metabolomic method was performed to characterize the phenotypically biochemical perturbations and potential mechanisms of CW-induced toxicity. Meanwhile, the expression level of toxicity biomarkers in the urine were analyzed to evaluate the detoxification by combination with Gancao (Radix Glyeyrrhizae, CG), Baishao (Radix Paeoniae Alba, CS) and Ganjiang (Rhizoma Zingiberis, CJ), which were screened from classical TCM prescriptions. Urinary metabolomics was performed by UPLC-Q-TOF-HDMS, and the mass spectra signals of the detected metabolites were systematically analyzed using pattern recognition methods. As a result, seventeen biomarkers associated with CW toxicity were identified, which were associated with pentose and glucuronate interconversions, alanine, aspartate, and glutamate metabolism, among others. The expression levels of most toxicity biomarkers were effectively modulated towards the normal range by the compatibility drugs. It indicated that the three compatibility drugs could effectively detoxify CW. In summary, our work demonstrated that metabolomics was vitally significant to evaluation of toxicity and finding detoxification methods for TCM.
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Affiliation(s)
- Hui Dong
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Guang-Li Yan
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Ying Han
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Hui Sun
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Ai-Hua Zhang
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Xian-Na Li
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Xi-Jun Wang
- National TCM Key Laboratory of Serum Pharmacochemistry, Laboratory of Metabolomics and Chinmedomics, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
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8
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Zeng H, Zhang H, Wu X, Chao F, Yu G, Zhang L, Jiang H, Liu H, Hou H, Zhan H, Zhang H, Tian M. Preliminary studies of a novel cyclopentadienyl tricarbonyl technetium-99m fatty acid derivative for myocardical imaging. J Labelled Comp Radiopharm 2013; 56:1-5. [PMID: 24285133 DOI: 10.1002/jlcr.2987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 10/24/2012] [Accepted: 10/30/2012] [Indexed: 11/06/2022]
Abstract
This study reports the synthesis and evaluation studies of 6'-cyclopentadienyl tricarbonyl technetium-99m 6'-oxo-11-(hexanamide)undecanoic acid (1). 1 was prepared with 26.5 ± 4.3% of radiochemical yield and more than 98% of radiochemical purity. Tissue distribution in mice showed that high radioactivity accumulated in the heart with moderate clearance. However, unfortunately, similar to those of other technetium-labeled fatty acid analogs, the biodistribution studies of 1 in mice showed poor heart-to-blood ratios, which suggested that 1 cannot be used as myocardial imaging agent, and it may provide a theoretical basis or a lab experience for corresponding fatty acid tracers studies.
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Affiliation(s)
- Huahui Zeng
- Department of Nuclear Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China, 310009; Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, China, 100875
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9
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Morais GR, Paulo A, Santos I. Organometallic Complexes for SPECT Imaging and/or Radionuclide Therapy. Organometallics 2012. [DOI: 10.1021/om300501d] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Goreti Ribeiro Morais
- Unidade de Ciências
Quı́micas e Radiofarmacêuticas, Instituto
Tecnológico e Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Estrada Nacional
10, 2686-953, Sacavém, Portugal
| | - António Paulo
- Unidade de Ciências
Quı́micas e Radiofarmacêuticas, Instituto
Tecnológico e Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Estrada Nacional
10, 2686-953, Sacavém, Portugal
| | - Isabel Santos
- Unidade de Ciências
Quı́micas e Radiofarmacêuticas, Instituto
Tecnológico e Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Estrada Nacional
10, 2686-953, Sacavém, Portugal
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10
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Mirtschink P, Stehr SN, Walther M, Pietzsch J, Bergmann R, Pietzsch HJ, Weichsel J, Pexa A, Dieterich P, Wunderlich G, Binas B, Kropp J, Deussen A. Validation of 99mTc-labeled “4+1” fatty acids for myocardial metabolism and flow imaging. Nucl Med Biol 2009; 36:833-43. [DOI: 10.1016/j.nucmedbio.2009.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 06/12/2009] [Accepted: 06/27/2009] [Indexed: 10/20/2022]
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Abstract
Nuclear medicine methods permit the visualisation of a variety of metabolic and physiological processes all over the body. Although planar scintigraphy has been found useful for many questions, detailed spatial information about the diseased organ can only be obtained with tomographic methods. Dependent on the radionuclide involved, two different tomographic procedures are available: single photon emission computed tomography (SPECT) and positron emission tomography (PET). The first part of this paper describes shortly the historical development of these methods as well as their technical and methodological basics. To elucidate the large variety of possible applications, an overview of SPECT and PET procedures utilised in research as well as in clinical practice are presented. Furthermore, both methods are compared and their individual advantages are pointed out.
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12
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Kim DH, Choe YS, Choi JY, Choi Y, Lee KH, Kim BT. 17-[4-(2-[18F]Fluoroethyl)-1H-1,2,3-triazol-1-yl]-6-thia-heptadecanoic Acid: A Potential Radiotracer for the Evaluation of Myocardial Fatty Acid Metabolism. Bioconjug Chem 2009; 20:1139-45. [DOI: 10.1021/bc800472a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Hyun Kim
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea
| | - Yearn Seong Choe
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea
| | - Joon Young Choi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea
| | - Yong Choi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea
| | - Byung-Tae Kim
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea
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13
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Lee BC, Kim DH, Lee I, Choe YS, Chi DY, Lee KH, Choi Y, Kim BT. 16-Cyclopentadienyl Tricarbonyl 99mTc 16-Oxo-hexadecanoic Acid: Synthesis and Evaluation of Fatty Acid Metabolism in Mouse Myocardium. J Med Chem 2008; 51:3630-4. [DOI: 10.1021/jm800049h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Byung Chul Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Dong Hyun Kim
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Iljung Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Yearn Seong Choe
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Dae Yoon Chi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Yong Choi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
| | - Byung-Tae Kim
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea, Department of Chemistry, Inha University, 253 Yonghyundong, Namgu, Inchon 402-751, Korea
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14
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Cazzola E, Benini E, Pasquali M, Mirtschink P, Walther M, Pietzsch HJ, Uccelli L, Boschi A, Bolzati C, Duatti A. Labeling of Fatty Acid Ligands with the Strong Electrophilic Metal Fragment [99mTc(N)(PNP)]2+ (PNP = Diphosphane Ligand). Bioconjug Chem 2008; 19:450-60. [DOI: 10.1021/bc7002378] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emiliano Cazzola
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Elisa Benini
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Micol Pasquali
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Peter Mirtschink
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Martin Walther
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Hans-Jurgen Pietzsch
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Licia Uccelli
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Alessandra Boschi
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Cristina Bolzati
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
| | - Adriano Duatti
- Laboratory of Nuclear Medicine, Department of Radiological Sciences, University of Ferrara, 44100 Ferrara, Italy, Institute of Physiology, Medical Faculty Carl Gustav Carus, Technical University Dresden, 01307 Dresden, Germany, Institute of Radiopharmacy, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany, and ICIS-CNR, Corso Stati Uniti, 4, 35127 Padova, Italy
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15
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Heintz AC, Jung CM, Stehr SN, Mirtschink P, Walther M, Pietzsch J, Bergmann R, Pietzsch HJ, Spies H, Wunderlich G, Kropp J, Deussen A. Myocardial uptake and biodistribution of newly designed technetium-labelled fatty acid analogues. Nucl Med Commun 2007; 28:637-45. [PMID: 17625386 DOI: 10.1097/mnm.0b013e32822a0d9f] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE In an effort to develop 99mTc-labelled fatty acids (FAs) for myocardial metabolism and flow imaging, several Tc analogues according to the '3+1' and the '4+1' mixed-ligand approach were synthesized and myocardial extraction was evaluated in non-working isolated guinea pig hearts. An example of biodistribution patterns in guinea pigs was determined by using one FA analogue. METHODS The coordination moieties contain a +5, respectively +3, oxidation state metal core attached to the end position of a FA chain. FA complexes of the '3+1' and the '4+1' mixed-ligand type were prepared and investigated using the isolated heart model. To estimate the diagnostic value of the analogue 99mTc-FAs, the biodistribution of one well-extracted FA was evaluated. RESULTS The '4+1' FA compounds achieved the highest uptake rates of all the technetium FAs investigated. In particular, the '4+1' 99mTc-C11-FA achieved at least a 2-fold higher ventricular extraction of the applied activity than the established control tracers including omega-(p-[123I]iodophenyl)pentadecanoic FAs (BMIPP and IPPA) and Tc-MIBI. Furthermore, the '4+1' dodecanoic FA derivative and the thiadodecanoic FA derivative showed an extraction comparable to established 123I-labelled tracers. Biodistribution experiments performed for the thiadodecanoic FA derivative indicated a good heart/blood and heart/lung ratio and also a high uptake in the liver. In contrast, '3+1' 99mTc complexes showed a low myocardial extraction rate. Nevertheless, the differentiation in the extraction profile, which depends on the FA chain length and structure, indicates a specific heart uptake of these 99mTc-labelled FA derivatives as well. CONCLUSIONS The excellent extraction rates found for '4+1' 99mTc-FAs indicate possibly promising structures for innovative myocardial tracers.
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Affiliation(s)
- Anke C Heintz
- Department of Anesthesiology, Medical Faculty, Technical University Dresden, Dresden, Germany.
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16
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Eckelman WC, Babich JW. Synthesis and validation of fatty acid analogs radiolabeled by nonisotopic substitution. J Nucl Cardiol 2007; 14:S100-9. [PMID: 17556177 DOI: 10.1016/j.nuclcard.2007.02.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Uehara T, Uemura T, Hirabayashi S, Adachi S, Odaka K, Akizawa H, Magata Y, Irie T, Arano Y. Technetium-99m-Labeled Long Chain Fatty Acid Analogues Metabolized by β-Oxidation in the Heart. J Med Chem 2007; 50:543-9. [PMID: 17266206 DOI: 10.1021/jm061017g] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of 99mTc-labeled fatty acid analogues metabolized by beta-oxidation in the myocardium constitutes an unsolved challenge. On the basis of our recent findings that [188Re]tricarbonyl(cyclopentadienylcarbonate)rhenium ([188Re]CpTR-COOH) was recognized as an aromatic compound and was metabolized as such in the body, [99mTc]cyclopentadienyltricarbonyltechnetium ([99mTc]CpTT) was conjugated at the omega-position of pentadecanoic acid to prepare [99mTc]CpTT-PA. When injected into rats, [99mTc]CpTT-PA exhibited the maximum myocardial accumulation and heart-to-blood ratio of 3.85 %ID/g at 1 min and 4.60 at 10 min postinjection, respectively. The metabolic study using isolated Langendorff perfused rat hearts demonstrated that approximately 67% of perfused [99mTc]CpTT-PA was incorporated and [99mTc]CpTT-propionic acid, the metabolite after six cycles of beta-oxidation of [99mTc]CpTT-PA, was detected as the major radiometabolite in the perfusate and myocardium. These findings indicate that [99mTc]CpTT-PA was recognized, transported, and metabolized as a long chain fatty acid analogue for energy production in the myocardium.
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Affiliation(s)
- Tomoya Uehara
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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18
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Rottman JN, Bracy D, Malabanan C, Yue Z, Clanton J, Wasserman DH. Contrasting effects of exercise and NOS inhibition on tissue-specific fatty acid and glucose uptake in mice. Am J Physiol Endocrinol Metab 2002; 283:E116-23. [PMID: 12067851 DOI: 10.1152/ajpendo.00545.2001] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Isotopic techniques were used to test the hypothesis that exercise and nitric oxide synthase (NOS) inhibition have distinct effects on tissue-specific fatty acid and glucose uptakes in a conscious, chronically catheterized mouse model. Uptakes were measured using the radioactive tracers (125)I-labeled beta-methyl-p-iodophenylpentadecanoic acid (BMIPP) and deoxy-[2-(3)H]glucose (DG) during treadmill exercise with and without inhibition of NOS. [(125)I]BMIPP uptake at rest differed substantially among tissues with the highest levels in heart. With exercise, [(125)I]BMIPP uptake increased in both heart and skeletal muscles. In sedentary mice, NOS inhibition induced by nitro-L-arginine methyl ester (L-NAME) feeding increased heart and soleus [(125)I]BMIPP uptake. In contrast, exercise, but not L-NAME feeding, resulted in increased heart and skeletal muscle [2-(3)H]DG uptake. Significant interactions were not observed in the effects of combined exercise and L-NAME feeding on [(125)I]BMIPP and [2-(3)H]DG uptakes. In the conscious mouse, exercise and NOS inhibition produce distinct patterns of tissue-specific fatty acid and glucose uptake; NOS is not required for important components of exercise-associated metabolic signaling, or other mechanisms compensate for the absence of this regulatory mechanism.
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Affiliation(s)
- Jeffrey N Rottman
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA.
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19
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Abstract
The introduction of tracer kinetic modeling techniques in conjunction with nuclear imaging has allowed the assessment of physiologic processes in the myocardium in a noninvasive and quantitative manner. Alongside the development of novel radiopharmaceuticals for both positron emission tomography and single photon emission computed tomography is the clarification of their pharmacology, pharmacokinetics, and modeling strategies for assessment of physiologic rates from imaging data. Image analysis and tracer kinetic modeling techniques used in nuclear cardiology must address unique considerations related to the heart. The most commonly used tracers and modeling techniques are presently discussed, with particular attention given to methods that allow absolute quantitation of physiologic processes. The applications of these techniques are obvious in research protocols and may find more use in future clinical studies.
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Affiliation(s)
- T R DeGrado
- Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA.
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