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Abstract
18F-Labeling methods for the preparation of 18F-labeled molecular probes can be classified into electrophilic fluorination, nucleophilic fluorination, metal-F coordination, and 18F/19F isotope exchange. Isotope exchange-based 18F-labeling methods demonstrate mild conditions featuring water resistance and facile high-performance liquid chromatography-free purification in direct 18F-labeling of substrates. This paper systematically reviews isotope exchange-based 18F-labeling methods sorted by the adjacent atom bonding with F, i.e., carbon and noncarbon atoms (Si, B, P, S, Ga, Fe, etc.). The respective isotope exchange mechanism, radiolabeling condition, radiochemical yield, molar activity, and stability of the 18F-product are mainly discussed for each isotope exchange-based 18F-labeling method as well as the cutting-edge application of the corresponding 18F-labeled molecular probes.
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Affiliation(s)
- Tao Wang
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
| | - Shengji Lv
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
| | - Zhaobiao Mou
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
| | - Zhenru Zhang
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
| | - Taotao Dong
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
| | - Zijing Li
- Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Experimental Medicine, School of Public Health, Xiamen University, Xiamen, Fujian 361102, China
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Synthesis, 99mTc-labeling, in-vivo study and in-silico investigation of 6-amino-5-[(bis-(2-hydroxy-ethyl)-amino]methyl]2-methyl pyrimidin-4-ol as a potential probe for tumor targeting. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08412-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractThis study aimed to synthesize a new pyrimidine derivative with a good synthesis yield of 87% to act as a new cancer marker after radiolabeling with Tc-99m in a high radiochemical yield of 92.3%. In-vivo study in tumor-bearing Swiss albino mice model revealed promising data with high uptake in cancer. Docking study showed good binding interactions of the radiosynthesized complex at the binding site. In conclusion, this novel complex could be a potential probe for cancer targeting.
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Daruwati I, Gwiharto AK, Kurniawan A, Mahendra I, Achmad TH, Syaifudin M, Muchtaridi M. Synthesis, stability, and cellular uptake of 131I-estradiol against MCF7 and T-47D human cell lines as a radioligand for binding assay. Heliyon 2021; 7:e08438. [PMID: 34901495 PMCID: PMC8637476 DOI: 10.1016/j.heliyon.2021.e08438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/20/2021] [Accepted: 11/16/2021] [Indexed: 12/12/2022] Open
Abstract
Estradiol is a steroid hormone that works as an agonist estrogen receptor (ER). This compound is widely used as a ligand and bind specifically to the ERα. Radioligand binding assay is an in vitro method for drug development from natural products by synthesizing estradiol through radiolabeling using the radioiodination method. Synthesis of 131I-estradiol was perfomed by direct method using chloramine T as an oxidizer and by indirect labeling using 131I-histamine. The purity of chemical was determined by thin-layer chromatography and paper electrophoresis, as well as its stability for 30 days of storage in refrigerator, freezer and room temperature. The cellular uptake test of the radioligands from both methods was carried out with MCF7 and T-47D cell lines at 60 min. The results exhibited that 131I-estradiol was succesfully obtained with radiochemical purity greater than 95% and more stable in the refrigerator until 21 days than freezer and room temperature. 131I-estradiol and 131I-his-estradiol were internalized higher in T-47D cells than MCF7 cells (44.34 ± 5.93% vs. 17.27 ± 1.71% and 45.34 ± 6.42% vs. 4.92 ± 1.59%, respectively). Furthermore, the radioligands can be used to binding assay in determining the agonist or antagonist to ER of new drugs development.
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Affiliation(s)
- Isti Daruwati
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Indonesia
- Center for Applied Nuclear Research and Technology, Nuclear Energy Research Organization, National Research and Innovation Agency (BRIN), Indonesia
| | - Abednego Kristande Gwiharto
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Indonesia
| | - Ahmad Kurniawan
- Center for Applied Nuclear Research and Technology, Nuclear Energy Research Organization, National Research and Innovation Agency (BRIN), Indonesia
| | - Isa Mahendra
- Center for Applied Nuclear Research and Technology, Nuclear Energy Research Organization, National Research and Innovation Agency (BRIN), Indonesia
| | - Tri Hanggono Achmad
- Department of Basic Medical Science, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Mukh Syaifudin
- Center for Research and Technology of Radiation Safety and Metrology, Nuclear Energy Research Organization, National Research and Innovation Agency (BRIN), Indonesia
| | - Muchtaridi Muchtaridi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Indonesia
- Functional Nano Powder University Center of Excellence (FiNder U CoE), Universitas Padjadjaran, Indonesia
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Xu D, Peng C, Gao F, Guo Z, Zhuang R, Su X, Zhang X. Radioiodinated estradiol dimer for estrogen receptor targeted breast cancer imaging. Chem Biol Drug Des 2020; 96:1332-1340. [PMID: 32603003 DOI: 10.1111/cbdd.13754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/29/2020] [Accepted: 06/14/2020] [Indexed: 11/26/2022]
Abstract
The aim of this study was to develop a 1-(2-(2-(2-(1,2,3-triazol)ethoxy)ethoxy)ethyl)-5-[125/131 I]iodo-1,2,3-triazole-diestradiol ([125/131 I]ITE2), for estrogen receptor (ER)-expressing breast cancer imaging with single-photon emission computed tomography (SPECT). [125/131 I]ITE2 was prepared in good radiochemical yield (94.4 ± 0.4%) with high radiochemical purity (>99%). [125/131 I]ITE2 had good stability in vitro and moderate molar activity (0.3 ± 0.2 GBq/µmol). Higher uptake in ER-positive MCF-7 cells than that of ER-negative MDA-MB-231 cells was observed at all time points. Rats biodistribution showed that [131 I]ITE2 had high uptake in ER-abundant uterine and ovarian (5.7 ± 0.4 and 10.1 ± 1.4%ID/g at 1 hr postinjection) and could be blocked by co-injection of estradiol (2.7 ± 0.1 and 5.5 ± 0.4%ID/g) obviously. In the SPECT/CT imaging study, [125 I]ITE2 showed significant higher uptake in MCF-7 tumor (3.1 ± 0.4%ID/g) than that of MDA-MB-231 (0.9 ± 0.1%ID/g). Furthermore, the specific uptake of [125 I]ITE2 in ER-positive MCF-7 tumor could be blocked effectively by preadministration of fulvestrant (1.2 ± 0.4%ID/g). A novel radioiodinated dimeric estrogen was designed and synthesized with promising ER targeting ability and specificity. It is worthy of further investigation to validate the advantages of the dimer in ER-positive breast cancer diagnosis.
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Affiliation(s)
- Duo Xu
- State Key Laboratory of Molecular Vaccinology and Molecular, Diahgnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Chenyu Peng
- State Key Laboratory of Molecular Vaccinology and Molecular, Diahgnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Fei Gao
- State Key Laboratory of Molecular Vaccinology and Molecular, Diahgnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Zhide Guo
- State Key Laboratory of Molecular Vaccinology and Molecular, Diahgnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Rongqiang Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular, Diahgnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Xinhui Su
- Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China
| | - Xianzhong Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular, Diahgnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
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