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Aboumanei MH, Mahmoud AF. Development of Tamoxifen In Situ Gel Nanoemulsion for Ocular Delivery in Photoreceptor Degeneration Disorder: In Vitro Characterization, 131I-Radiolabeling, and In Vivo Biodistribution Studies. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09638-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Abstract
Purpose
The aim of our work is to develop an in situ ocular gellan gum–based nanoemulsion (NE) of tamoxifen TAM as an alternative drug delivery system to the oral route for the treatment of photoreceptor degeneration disorder.
Method
Six pseudoternary phase diagrams were developed using oil (oleic acid), surfactants (Tween 80 or Tween 20), a co-surfactant (polyethylene glycol 400), and water. The particle size, polydispersity index, and zeta potential of the developed systems were all measured. The safety of ocular application of the optimum system was established via in vivo histopathological investigation. To track the biodistribution of the optimum gel, iodine-131 (131I) was incorporated into the gel via coupling with TAM via direct electrophilic substitution reaction.
Results
Based on the obtained results, TAMNE-1 was chosen as the optimal system, with PS = 140.20 ± 1.50 nm, ZP = − 27.86 ± 1.13 mV, and PDI = 0.20 ± 0.00%. In vitro release displayed a prolonged and sustained release of TAMNE-1 gel compared to TAM solution (plain eye drop). Transparent in situ TAMNE-1 gel was developed after the incorporation of the TAMNE-1 system into gellan gum aqueous solution (0.3% w/w). In this study, TAM was successfully radiolabeled with 131I for subsequent evaluation of the efficacy of the developed in situ gel system (TAMNE-1 gel) in vivo. The developed TAMNE-1 gel system was nonirritant and safe and the biodistribution studies showed better retention of TAMNE-1 gel than plain TAM eye drops.
Conclusion
The developed TAMNE-1 gel is able to enhance the ocular bioavailability of TAM and can go further with clinical evaluation.
Graphic Abstract
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99mTc Tamoxifen for Imaging Estrogen Receptor Expression in Metastatic Breast Cancer Patient. Clin Nucl Med 2020; 45:225-227. [PMID: 31977463 DOI: 10.1097/rlu.0000000000002900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Estrogen receptor-expressing breast cancer exhibits better prognosis due to responsiveness to antiestrogen treatment. Therefore, knowledge of the estrogen receptor status of a tumor is an important prognostic and predictive indicator in breast cancer. We present noninvasive imaging of estrogen receptors with Tc tamoxifen that can identify the active tumor and approachable sites for biopsy. It may help in selection of patients for hormone replacement therapy and in assessment of receptor status in recurrent disease and also in response evaluation.
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Moharrami P, Unak P, Guldu OK, Medine Eİ, Gumuser G, Bilgin ES, Aras O. Multifunctional molecular imaging probes for estrogen receptors: 99mTc labeled diethylstilbestrol (DES) conjugated, cuinp quantum dot nanoparticles (DESCIP). J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5630-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Biber Muftuler FZ, Unak P. A perspective on 99mTc and 125/131I labeled receptor targeted compounds and their in vitro/in vivo affinities. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5353-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tapia-Moreno A, Juarez-Moreno K, Gonzalez-Davis O, Cadena-Nava RD, Vazquez-Duhalt R. Biocatalytic virus capsid as nanovehicle for enzymatic activation of Tamoxifen in tumor cells. Biotechnol J 2017; 12. [DOI: 10.1002/biot.201600706] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 03/28/2017] [Accepted: 03/31/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Alejandro Tapia-Moreno
- Centro de Nanociencias y Nanotecnología; Universidad Nacional Autónoma de México; Ensenada Baja California Mexico
| | - Karla Juarez-Moreno
- Centro de Nanociencias y Nanotecnología; Universidad Nacional Autónoma de México; Ensenada Baja California Mexico
| | - Oscar Gonzalez-Davis
- Centro de Nanociencias y Nanotecnología; Universidad Nacional Autónoma de México; Ensenada Baja California Mexico
| | - Ruben D. Cadena-Nava
- Centro de Nanociencias y Nanotecnología; Universidad Nacional Autónoma de México; Ensenada Baja California Mexico
| | - Rafael Vazquez-Duhalt
- Centro de Nanociencias y Nanotecnología; Universidad Nacional Autónoma de México; Ensenada Baja California Mexico
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125I labeling of clomiphene and biodistribution studies for possible use as a model in breast cancer imaging. Appl Radiat Isot 2016; 115:37-44. [DOI: 10.1016/j.apradiso.2016.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/31/2016] [Accepted: 06/04/2016] [Indexed: 11/23/2022]
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7
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Critical analysis of radioiodination techniques for micro and macro organic molecules. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-015-4679-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
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Guldu OK, Unak P, Medine EI, Barlas FB, Muftuler FZB, Timur S. Radioiodinated Magnetic Nanoparticles Conjugated With Moxifloxacin: Synthesis andIn VitroBiological Affinities. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2014.936597] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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In-vivo evaluation of tamoxifen-loaded microspheres based on mixtures of poly (D,L-lactide-co-glycolide) and poly (D,L-lactide) polymers. Anticancer Drugs 2014; 25:641-51. [PMID: 24590166 DOI: 10.1097/cad.0000000000000087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Microspheres of different proportions of poly-(D,L-lactide-co-glycolide) and poly-(D,L-lactide) were formulated by spray drying as a drug-delivery system for the treatment of breast cancer with tamoxifen. These systems had been evaluated previously in vitro and showed very positive results that have led to further assessment in vivo. This work evaluates the performance of these systems in an organism by carrying out a study in female Wistar rats. Microspheres were subcutaneously injected into the back of rats for the assessment of not only the biocompatibility but also the release of the drug contained and its biodistribution. As, in vitro, these systems could release the drug under physiological conditions; different plasma concentrations of tamoxifen and one of its metabolites, 4-hydroxy-tamoxifen, were achieved depending on the polymer composition. Microspheres could reduce the accumulation of the drug in different nontarget organs and presented good biocompatibility.
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Zhang J, Hu H, Liang S, Yin J, Hui X, Hu S, He M, Wang J, Wang B, Nie Y, Wu K, Ding J. Targeted radiotherapy with tumor vascular homing trimeric GEBP11 peptide evaluated by multimodality imaging for gastric cancer. J Control Release 2013; 172:322-329. [DOI: 10.1016/j.jconrel.2013.08.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/02/2013] [Accepted: 08/26/2013] [Indexed: 01/10/2023]
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Dallagi T, Saidi M, Vessières A, Huché M, Jaouen G, Top S. Synthesis and antiproliferative evaluation of ferrocenyl and cymantrenyl triaryl butene on breast cancer cells. Biodistribution study of the corresponding technetium-99m tamoxifen conjugate. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.11.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Abstract
To explore the novel properties of carbon nanoparticles (CNPs) in nanotoxicity assays, the adsorption of phenol red (a pH indicator for culture medium) by multi-walled carbon nanotubes (MWNTs) and three kinds of carbon blacks (CBs) with nanosize, and its effects on cytotoxicity were studied. Results indicated that the phenol red adsorbed and delivered into cells by CBs was responsible for the toxicity to Hela cells in the medium without serum. The cellular uptake of phenol red was verified using 125I-labeling techniques. The size-dependent cytotoxicity of CBs was found to closely correlate to adsorption of phenol red, cellular uptake of phenol red-CB complexes and the amount of phenol red delivered into the cells by CBs. Although the CBs were either nontoxic or slightly toxic, as vehicles of phenol red, they played an essential role in the cytotoxicity induced by phenol red. However, MWNTs showed an intrinsic cytotoxicity independent of phenol red. The implications associated with these findings are discussed.
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Demiroğlu H, Avcıbaşı U, Ünak P, Müftüler FZB, İçhedef Ç, Gümüşer FG, Sakarya S. Radiolabeling of Bleomycin-Glucuronide with 131I and Biodistribution Studies Using Xenograft Model of Human Colon Tumor in Balb/C Mice. Cancer Biother Radiopharm 2012; 27:371-83. [DOI: 10.1089/cbr.2011.1157] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hasan Demiroğlu
- Department of Chemistry, Faculty of Art and Science, Celal Bayar University, Manisa, Turkey
| | - Ugur Avcıbaşı
- Department of Chemistry, Faculty of Art and Science, Celal Bayar University, Manisa, Turkey
| | - Perihan Ünak
- Department of Nuclear Applications, Institute of Nuclear Sciences, Ege University, Bornova, Izmir, Turkey
| | | | - Ç.A. İçhedef
- Department of Nuclear Applications, Institute of Nuclear Sciences, Ege University, Bornova, Izmir, Turkey
| | - Fikriye Gül Gümüşer
- Department of Nuclear Medicine, School of Medicine, Celal Bayar University, Manisa, Turkey
| | - Serhan Sakarya
- Department of Infectious Diseases and Clinical Microbiology, Adnan Menderes University School of Medicine, Aydin, Turkey
- ADUBILTEM Science and Technology Research and Development Center, Adnan Menderes University, Aydin, Turkey
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Kapse SV, Gaikwad RV, Samad A, Devarajan PV. Self nanoprecipitating preconcentrate of tamoxifen citrate for enhanced bioavailability. Int J Pharm 2012; 429:104-12. [DOI: 10.1016/j.ijpharm.2012.02.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 02/23/2012] [Accepted: 02/26/2012] [Indexed: 12/01/2022]
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Cekic B, Kilcar AY, Muftuler FZB, Unak P, Medine EI. Radiolabeling of methanol extracts of yarrow (Achillea millefolium l) in rats. Acta Cir Bras 2012; 27:294-300. [DOI: 10.1590/s0102-86502012000500003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 03/15/2012] [Indexed: 11/22/2022] Open
Abstract
PURPOSE: Current study is focused on extraction with methanol, purification, labeling with 131I using iodogen method of the yarrow plant and investigating in vivo biological activity using biodistribution and imaging studies on healthy animal models. The aim of the study is to contribute plant extracts to discover new drugs in the diagnosis and treatment of several diseases. METHODS: Nine female and nine male healthy Wistar albino rats, which were approximately 100-150 g in weight, were used for biodistribution studies. For imaging studies four healthy male Balb-C mice were used. Quality control studies were done utilizing thin layer radio chromatography (TLRC) and high performance liquid chromatography (HPLC) methods. For biodistribution studies, 131I radiolabeled Peak 7 (131I-Peak 7) was sterilized and injected into the tail veil of rats and imaging studies were obtained using Kodak FX PRO in vivo Imaging System. RESULTS: The radiolabeling yield of each purified the bioactive extracts of the yarrow plant, seven peaks was between 79 and 92%. The highest radiolabeling yield was calculated for 131I radiolabeled seventh peak (131I-Peak 7) (92.78±5.04, n=5). For this reason the biodistribution and imaging studies were done for 131I-Peak 7. That's why; these studies with Peak 7 were carried out. CONCLUSION: Peak 7 was radiolabeled with 131I in high yield for using imaging and therapeutic studies in nuclear medical applications.
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Aslan O, Biber Muftuler FZ, Yurt Kilcar A, Ichedef C, Unak P. In vivo biological evaluation of 131I radiolabeled-paclitaxel glucuronide (131I-PAC-G). RADIOCHIM ACTA 2012. [DOI: 10.1524/ract.2012.1922] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Paclitaxel (PAC) is a natural occurring diterpene alkoloid originally isolated from the bark of Taxus Brevifolia. It is one of the most important antitumor agents for clinical treatment of ovarian, breast non-small cell lung and prostate cancers. It is known that these types of cancer cells have high β-glucuronidase enzyme which can catalyze the hydrolysis of glucuronides. This is why the synthesis compounds which undergo glucuronidation come into question in the imaging and therapy of these cancer cells.
The aim of current study is conjugation of glucuronic acid (G) to the starting substance PAC, labeling with 131I and to perform its in vivo biological evaluation. Glucuronic acid derived paclitaxel compound [paclitaxel-glucuronide (PAC-G)] was labeled with 131I using iodogen method. According to thin layer radio chromatography (TLRC) method, the radiochemical yield of 131I-PAC-G was 84.30 ± 7.40% (n=10). The biodistribution of 131I-PAC-G in healthy female and male Wistar Albino rats has been investigated. Imaging studies on male Balb-C mice were performed by using the Kodak FX PRO in vivo Imaging System. The range of the breast/blood, breast/muscle; ovary/blood, ovary/muscle ratios is approximately between 1.29 and 11.34 in 240 min, and between 0.71 and 8.24 in 240 min for female rats. The prostate/blood and prostate/muscle ratio is between 1.94 and 6.95 in 30 min for male rats. All these experimental studies indicate that 131I-PAC-G may potentially be used in breast, ovary and prostate tissues as an imaging agent. Also it is thought that 131I-PAC-G bears a theraphy potential because of the 131I radionuclide and can be improved with further investigations.
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Affiliation(s)
- Onder Aslan
- Ege University, Institute of Nuclear Sciences, Bornova, Izmir, Türkei
| | | | - Ayfer Yurt Kilcar
- Ege University, Institute of Nuclear Sciences, 35100 Bornova, Izmir, Türkei
| | - Cigdem Ichedef
- Ege University, Institute of Nuclear Sciences, 35100 Bornova, Izmir, Türkei
| | - Perihan Unak
- Ege University, Institute of Nuclear Sciences, 35100 Bornova, Izmir, Türkei
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Preparation of 131I–betulinic acid and its biodistribution in murine model of hepatocellular tumor. J Radioanal Nucl Chem 2010. [DOI: 10.1007/s10967-010-0925-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
AbstractThe known IODO-GEN™-method [1] was adapted for radiolabeling of humic and fulvic acids with131I. The water insoluble oxidizing agent 1,3,4,6tetrachloro-3α,6α-diphenylglycoluril (IODO-GEN™) forms an iodous ion species (I+), which undergoes an electrophilic I/H-substitution on aromatic moieties of the humic and fulvic acids. This method offers mild conditions with a lesser extent of oxidative alterations of the target molecule, accompanied by an easy handling due to the virtual water-insolubility of the oxidizing agent. The method was optimized and different techniques were tested for the purification of the radioiodinated humic material. The yield of the labeling procedure varies between 45 and 75% depending on the provenance of the humic material and the applied purification method. A specific activity up to 40 MBq/mg was achieved. Furthermore, the known inherent photo-susceptibility of the iodinated humic substance and the influence of reducing agents were verified. An additional release of131I up to 20% and up to 35%, respectively were observed.
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Affiliation(s)
| | - H. Kupsch
- Institute of Interdisciplinary Isotope Research, Leipzig, Deutschland
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Yurt A, Muftuler FZB, Unak P, Yolcular S, Acar C, Enginar H. Synthesis of a novel antiestrogen radioligand (99mTc-TOR-DTPA). Cancer Biother Radiopharm 2010; 24:707-16. [PMID: 20025551 DOI: 10.1089/cbr.2009.0656] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study was aimed at developing a hydrophilic radioligand as an antiestrogen drug derivative to be used for imaging breast tumors. Toremifene [TOR; 4-chloro-1,2-diphenyl-1-(4-(2-(N,N-di-methylamino)ethoxy)phenyl)-1-butene, as citrate salt] was selected as the starting material to be derived, since it has been used extensively as an antiestrogen drug for treatment and prevention of human breast cancer. An antiestrogen drug derivative, TOR attached to diethylenetriamine pentaacetic acid (DTPA), was synthesized by two experimental treatments, including a purification and a reaction step. We described the synthesis of this TOR derivative, (3Z)-4-{4-[2-(dimethylamino) ethoxy] phenyl}-3,4-diphenylbut-3-en-1-ylN,N-bis[2-(2,6-dioxomorpholin-4-yl)ethyl]glycinate (TOR-DTPA), in detail. Mass spectroscopy confirmed the expected structures. TOR-DTPA was labeled with technetium-99m ((99m)Tc), using stannous chloride (SnCl(2)) as the reducing agent. Biodistribution studies were performed on female Albino Wistar rats. Quality controls, radiochemical yield, and stability studies were done utilizing high-performance liquid chromatography, radioelectrophoresis, thin-layer chromatography, and thin-layer radiochromatography methods. The synthesized compound was found to be hydrophilic and anionic, with high stability for the duration of the testing period in vitro. The results indicated that the radiolabeled compound has estrogen-receptor specificity, especially for the breast tissue. It is highly possible that this compound could be used for imaging breast tumors as a novel technetium-labeled hydrophilic estrogen derivative radioligand.
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Affiliation(s)
- Ayfer Yurt
- Department of Nuclear Applications, Institute of Nuclear Science, Ege University, Bornova, Izmir, Turkey
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