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Hashemi S, Shirmardi SP, Hosntalab M, Sardari D, Saniei E. Internal absorbed dose calculation in body organs due to injection of Rhenium-188 labeled to Mu-9 antibody. Appl Radiat Isot 2024; 207:111235. [PMID: 38430824 DOI: 10.1016/j.apradiso.2024.111235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 03/05/2024]
Abstract
The use of radiopharmaceuticals has gained a special place in the diagnosis and treatment of cancers and evaluation of the function of different organs of the body. In this study, the absorbed dose distribution of organs after injection of 188Re-Mu-9 has been investigated using MIRD method and MCNP-4C simulation code. The 188Re-Mu-9 labeled was injected the mouse body and the amount of 188Re-labeled accumulation was evaluated after 1, 4 and 2 4 h. Having a map of the distribution of radiopharmaceutical activity in the animal body, it is possible to convert it into a human model to obtain the internal dose received by 188Re-Mu-9 injection using the MIRD calculation method and the MCNP simulation code. According to the results of the study, the animal/human model can be acceptable method for dose estimation of antibody-based radiopharmaceuticals.
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Affiliation(s)
- S Hashemi
- Medical Radiation Engineering Department, Science and Research Branch, Islamic Azad University (IAU), P.O. Box: 14515-775, Tehran, Iran
| | - S P Shirmardi
- Radiation Application Research School, Nuclear Science and Technology Research Institute (NSTRI), P.O.Box: 14395-836, Tehran, Iran.
| | - M Hosntalab
- Medical Radiation Engineering Department, Science and Research Branch, Islamic Azad University (IAU), P.O. Box: 14515-775, Tehran, Iran
| | - D Sardari
- Medical Radiation Engineering Department, Science and Research Branch, Islamic Azad University (IAU), P.O. Box: 14515-775, Tehran, Iran
| | - E Saniei
- Department of Medical Radiation Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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2
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Sharma S, Pandey MK. Radiometals in Imaging and Therapy: Highlighting Two Decades of Research. Pharmaceuticals (Basel) 2023; 16:1460. [PMID: 37895931 PMCID: PMC10610335 DOI: 10.3390/ph16101460] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
The present article highlights the important progress made in the last two decades in the fields of molecular imaging and radionuclide therapy. Advancements in radiometal-based positron emission tomography, single photon emission computerized tomography, and radionuclide therapy are illustrated in terms of their production routes and ease of radiolabeling. Applications in clinical diagnostic and radionuclide therapy are considered, including human studies under clinical trials; their current stages of clinical translations and findings are summarized. Because the metalloid astatine is used for imaging and radionuclide therapy, it is included in this review. In regard to radionuclide therapy, both beta-minus (β-) and alpha (α)-emitting radionuclides are discussed by highlighting their production routes, targeted radiopharmaceuticals, and current clinical translation stage.
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Affiliation(s)
| | - Mukesh K. Pandey
- Division of Nuclear Medicine, Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA;
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3
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Trencsényi G, Enyedi KN, Mező G, Halmos G, Képes Z. NGR-Based Radiopharmaceuticals for Angiogenesis Imaging: A Preclinical Review. Int J Mol Sci 2023; 24:12675. [PMID: 37628856 PMCID: PMC10454655 DOI: 10.3390/ijms241612675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Angiogenesis plays a crucial role in tumour progression and metastatic spread; therefore, the development of specific vectors targeting angiogenesis has attracted the attention of several researchers. Since angiogenesis-associated aminopeptidase N (APN/CD13) is highly expressed on the surface of activated endothelial cells of new blood vessels and a wide range of tumour cells, it holds great promise for imaging and therapy in the field of cancer medicine. The selective binding capability of asparagine-glycine-arginine (NGR) motif containing molecules to APN/CD13 makes radiolabelled NGR peptides promising radiopharmaceuticals for the non-invasive, real-time imaging of APN/CD13 overexpressing malignancies at the molecular level. Preclinical small animal model systems are major keystones for the evaluation of the in vivo imaging behaviour of radiolabelled NGR derivatives. Based on existing literature data, several positron emission tomography (PET) and single-photon emission computed tomography (SPECT) radioisotopes have been applied so far for the labelling of tumour vasculature homing NGR sequences such as Gallium-68 (68Ga), Copper-64 (64Cu), Technetium-99m (99mTc), Lutetium-177 (177Lu), Rhenium-188 (188Re), or Bismuth-213 (213Bi). Herein, a comprehensive overview is provided of the recent preclinical experiences with radiolabelled imaging probes targeting angiogenesis.
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Affiliation(s)
- György Trencsényi
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary;
| | - Kata Nóra Enyedi
- ELKH-ELTE Research Group of Peptide Chemistry, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary; (K.N.E.); (G.M.)
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
| | - Gábor Mező
- ELKH-ELTE Research Group of Peptide Chemistry, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary; (K.N.E.); (G.M.)
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary;
| | - Zita Képes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary;
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4
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Shukla J, Goyal A, Chhabra A, Rathore Y, Bansal K, Pandey S, Parmar M, Singhal S, Kalra N, Duseja A, Mittal BR. Cold kit for Rhenium-188 microspheres based selective intra-arterial therapy (SIRT): Preparation, characterization and feasibility study. Appl Radiat Isot 2022; 190:110423. [PMID: 36183659 DOI: 10.1016/j.apradiso.2022.110423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 12/24/2022]
Abstract
Selective-intra-arterial radionuclide therapy (SIRT) using radiolabeled microspheres are being widely employed for the delivery of therapeutic radioisotope to liver cancers by exploiting the dual blood supply to liver. It delivers the therapeutic radiations to tumor and spares the healthy liver. Several radiolabeled microspheres formulations, labelled with 90Y, are commercially available. However, high-cost leads to unaffordability for several patients. 188Re-based therapy seems affordable due to commercial availability of 188W/188Re generator that have long shelf-life of more than 6 months. To provide affordable solution, the microsphere cold kit with quick and facile methodology for 188Re radiolabeling has been developed. The microsphere cold kit has been characterized for their physicochemical properties. The Quality Control (QC) tests were also performed for clinical application. The feasibility studies were performed to study distribution and retention of 188Re microspheres in tumor. The results demonstrated that the developed cold kit enables facile and quick radiolabeling with 188Re. 188Re microspheres showed good retention in tumor and found suitable for SIRT.
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Affiliation(s)
- Jaya Shukla
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
| | - Ankita Goyal
- Department of Chemistry, Post Graduate Government College for Girls, Sector-42, Chandigarh, India
| | - Anupriya Chhabra
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Yogesh Rathore
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kavita Bansal
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Somit Pandey
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Madan Parmar
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sonal Singhal
- Department of Chemistry, Panjab University, Chandigarh, India
| | - Naveen Kalra
- Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ajay Duseja
- Department of Hepatology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Bhagwant Rai Mittal
- Department of Nuclear Medicine and PET, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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5
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Holik HA, Ibrahim FM, Elaine AA, Putra BD, Achmad A, Kartamihardja AHS. The Chemical Scaffold of Theranostic Radiopharmaceuticals: Radionuclide, Bifunctional Chelator, and Pharmacokinetics Modifying Linker. Molecules 2022; 27:molecules27103062. [PMID: 35630536 PMCID: PMC9143622 DOI: 10.3390/molecules27103062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 11/16/2022] Open
Abstract
Therapeutic radiopharmaceuticals have been researched extensively in the last decade as a result of the growing research interest in personalized medicine to improve diagnostic accuracy and intensify intensive therapy while limiting side effects. Radiometal-based drugs are of substantial interest because of their greater versatility for clinical translation compared to non-metal radionuclides. This paper comprehensively discusses various components commonly used as chemical scaffolds to build radiopharmaceutical agents, i.e., radionuclides, pharmacokinetic-modifying linkers, and chelators, whose characteristics are explained and can be used as a guide for the researcher.
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Affiliation(s)
- Holis Abdul Holik
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia; (F.M.I.); (A.A.E.); (B.D.P.)
- Correspondence:
| | - Faisal Maulana Ibrahim
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia; (F.M.I.); (A.A.E.); (B.D.P.)
| | - Angela Alysia Elaine
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia; (F.M.I.); (A.A.E.); (B.D.P.)
| | - Bernap Dwi Putra
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia; (F.M.I.); (A.A.E.); (B.D.P.)
| | - Arifudin Achmad
- Department of Nuclear Medicine and Molecular Theranostics, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung 40161, Indonesia; (A.A.); (A.H.S.K.)
- Oncology and Stem Cell Working Group, Faculty of Medicine, Universitas Padjadjaran, Bandung 40161, Indonesia
| | - Achmad Hussein Sundawa Kartamihardja
- Department of Nuclear Medicine and Molecular Theranostics, Faculty of Medicine, Universitas Padjadjaran/Hasan Sadikin General Hospital, Bandung 40161, Indonesia; (A.A.); (A.H.S.K.)
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Roy I, Krishnan S, Kabashin AV, Zavestovskaya IN, Prasad PN. Transforming Nuclear Medicine with Nanoradiopharmaceuticals. ACS NANO 2022; 16:5036-5061. [PMID: 35294165 DOI: 10.1021/acsnano.1c10550] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nuclear medicine is expected to make major advances in cancer diagnosis and therapy; tumor-targeted radiopharmaceuticals preferentially eradicate tumors while causing minimal damage to healthy tissues. The current scope of nuclear medicine can be significantly expanded by integration with nanomedicine, which utilizes nanoparticles for cancer diagnosis and therapy by capitalizing on the increased surface area-to-volume ratio, the passive/active targeting ability and high loading capacity, the greater interaction cross section with biological tissues, the rich surface properties of nanomaterials, the facile decoration of nanomaterials with a plethora of functionalities, and the potential for multiplexing several functionalities within one construct. This review provides a comprehensive discussion of nuclear nanomedicine using tumor-targeted nanoparticles for cancer radiation therapy with either pre-embedded radionuclides or nonradioactive materials which can be extrinsically triggered using various external nuclear particle sources to produce in situ radioactivity. In addition, it describes the prospect of combining nuclear nanomedicine with other modalities to enable synergistically enhanced combination therapies. The review also discusses advances in the fabrication of radionuclides as well as describes laser ablation technologies for producing nanoradiopharmaceuticals, which combine the ease of production with exceptional purity and rapid biodegradability, along with additional imaging or therapeutic functionalities. From a practical standpoint, these attributes of nanoradiopharmaceuticals may provide distinct advantages in diagnostic/therapeutic sensitivity and specificity, imaging resolution, and scalability of turnkey platforms. Coupling image-guided targeted radiation therapy with the possibility of in situ activation of nanomaterials as well as combining with other therapeutic modalities using a multifunctional nanoplatform could herald an era of exciting technological and therapeutic advances to radically transform the landscape of nuclear medicine. The review concludes with a discussion of current challenges and presents the authors' views on future opportunities to stimulate further research in this rewarding field of high societal impact.
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Affiliation(s)
- Indrajit Roy
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Sunil Krishnan
- Department of Radiation Oncology, Mayo Clinic Florida, Jacksonville, Florida 32224, United States
| | - Andrei V Kabashin
- Aix Marseille University, CNRS, LP3, Campus de Luminy - Case 917, 13288 Marseille, France
- MEPhI, Institute of Engineering Physics for Biomedicine (PhysBio), 115409 Moscow, Russia
| | - Irina N Zavestovskaya
- MEPhI, Institute of Engineering Physics for Biomedicine (PhysBio), 115409 Moscow, Russia
- Nuclear Physics and Astrophysics Department, LPI of RAS, 119991 Moscow, Russia
| | - Paras N Prasad
- MEPhI, Institute of Engineering Physics for Biomedicine (PhysBio), 115409 Moscow, Russia
- Department of Chemistry and Institute for Lasers, Photonics, and Biophotonics, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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Melis DR, Burgoyne AR, Ooms M, Gasser G. Bifunctional chelators for radiorhenium: past, present and future outlook. RSC Med Chem 2022; 13:217-245. [PMID: 35434629 PMCID: PMC8942221 DOI: 10.1039/d1md00364j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/14/2022] [Indexed: 01/16/2023] Open
Abstract
Targeted radionuclide therapy (TRNT) is an ever-expanding field of nuclear medicine that provides a personalised approach to cancer treatment while limiting toxicity to normal tissues. It involves the radiolabelling of a biological targeting vector with an appropriate therapeutic radionuclide, often facilitated by the use of a bifunctional chelator (BFC) to stably link the two entities. The radioisotopes of rhenium, 186Re (t 1/2 = 90 h, 1.07 MeV β-, 137 keV γ (9%)) and 188Re (t 1/2 = 16.9 h, 2.12 MeV β-, 155 keV γ (15%)), are particularly attractive for radiotherapy because of their convenient and high-abundance β--particle emissions as well as their imageable γ-emissions and chemical similarity to technetium. As a transition metal element with multiple oxidation states and coordination numbers accessible for complexation, there is great opportunity available when it comes to developing novel BFCs for rhenium. The purpose of this review is to provide a recap on some of the past successes and failings, as well as show some more current efforts in the design of BFCs for 186/188Re. Future use of these radionuclides for radiotherapy depends on their cost-effective availability and this will also be discussed. Finally, bioconjugation strategies for radiolabelling biomolecules with 186/188Re will be touched upon.
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Affiliation(s)
- Diana R Melis
- SCK CEN, Belgian Nuclear Research Centre Boeretang 200 BE-2400 Mol Belgium +1 865 341 1413 +32 14 33 32 83
- Chimie ParisTech, Laboratory for Inorganic Chemical Biology, PSL University F-75005 Paris France www.gassergroup.com +33 1 44 27 56 02
| | - Andrew R Burgoyne
- SCK CEN, Belgian Nuclear Research Centre Boeretang 200 BE-2400 Mol Belgium +1 865 341 1413 +32 14 33 32 83
| | - Maarten Ooms
- SCK CEN, Belgian Nuclear Research Centre Boeretang 200 BE-2400 Mol Belgium +1 865 341 1413 +32 14 33 32 83
| | - Gilles Gasser
- Chimie ParisTech, Laboratory for Inorganic Chemical Biology, PSL University F-75005 Paris France www.gassergroup.com +33 1 44 27 56 02
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8
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Emerging Preclinical and Clinical Applications of Theranostics for Nononcological Disorders. PET Clin 2021; 16:429-440. [PMID: 34053586 DOI: 10.1016/j.cpet.2021.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Studies in nuclear medicine have shed light on molecular imaging and therapeutic approaches for oncological and nononcological conditions. Using the same radiopharmaceuticals for diagnosis and therapeutics of malignancies, the theranostics approach, has improved clinical management of patients. Theranostic approaches for nononcological conditions are recognized as emerging topics of research. This review focuses on preclinical and clinical studies of nononcological disorders that include theranostic strategies. Theranostic approaches are demonstrated as possible in the clinical management of infections and inflammations. There is an emerging need for randomized trials to specify the factors affecting validity and efficacy of theranostic approaches in nononcological diseases.
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Freeze-dried microspheres for selective intra-arterial radionuclide therapy: an affordable solution. Nucl Med Commun 2021; 41:817-823. [PMID: 32516242 DOI: 10.1097/mnm.0000000000001225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Selective intra-arterial radionuclide therapy (SIRT) using radiolabelled microspheres is for the delivery of therapeutic radioisotope to liver cancers and thus, sparing healthy liver. Several radiolabelled microspheres are commercially available. The main issue associated with these microspheres is affordability. Re-188 is a generator produced radionuclide, emits high energy therapeutic beta particle and imageable gamma photons for pre- and post-therapy dosimetry. METHODS Tc-99m/Re-188 labelled microspheres have been developed and quality control tests have been performed for suitable clinical use. The clinical studies with Re-188 microspheres for SIRT have been performed. Post-therapy images were acquired for dosimetry. RESULTS The microspheres were found to possess spherical morphology of less than 20 µm size. The quality control revealed the suitability of microspheres for intravenous administration. The preliminary studies in thirty patients demonstrated good retention in tumor and high tumor to normal liver ratio. Re-188 microspheres were well tolerated by patients. Same microspheres labelled with either Tc-99m or Re-188 were used for pretherapy dosimetry and Re-188 labeled microspheres for therapy (SIRT) as a single-day procedure. CONCLUSION The freeze-dried microspheres may emerge as highly cost-effective candidates for both pre-therapy dosimetry and SIRT and may benefit a large population with inoperable liver cancer.
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Tan HY, Yeong CH, Wong YH, McKenzie M, Kasbollah A, Md Shah MN, Perkins AC. Neutron-activated theranostic radionuclides for nuclear medicine. Nucl Med Biol 2020; 90-91:55-68. [PMID: 33039974 DOI: 10.1016/j.nucmedbio.2020.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/08/2020] [Accepted: 09/22/2020] [Indexed: 12/14/2022]
Abstract
Theranostics in nuclear medicine refers to personalized patient management that involves targeted therapy and diagnostic imaging using a single or combination of radionuclide (s). The radionuclides emit both alpha (α) or beta (β-) particles and gamma (γ) rays which possess therapeutic and diagnostic capabilities, respectively. However, the production of these radionuclides often faces difficulties due to high cost, complexity of preparation methods and that the products are often sourced far from the healthcare facilities, hence losing activity due to radioactive decay during transportation. Subject to the availability of a nuclear reactor within an accessible distance from healthcare facilities, neutron activation is the most practical and cost-effective route to produce radionuclides suitable for theranostic purposes. Holmium-166 (166Ho), Lutetium-177 (177Lu), Rhenium-186 (186Re), Rhenium-188 (188Re) and Samarium-153 (153Sm) are some of the most promising neutron-activated radionuclides that are currently in clinical practice and undergoing clinical research for theranostic applications. The aim of this paper is to review the physical characteristics, current clinical applications and future prospects of these neutron activated radionuclides in theranostics. The production, physical properties, validated clinical applications and clinical studies for each neutron-activated radionuclide suitable for theranostic use in nuclear medicine are reviewed in this paper.
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Affiliation(s)
- Hun Yee Tan
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, 47500 Subang Jaya, Selangor, Malaysia
| | - Chai Hong Yeong
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, 47500 Subang Jaya, Selangor, Malaysia
| | - Yin How Wong
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, 47500 Subang Jaya, Selangor, Malaysia
| | - Molly McKenzie
- School of Life Sciences, University of Dundee, DD1 4HN, United Kingdom
| | - Azahari Kasbollah
- Medical Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia
| | - Mohamad Nazri Md Shah
- Department of Biomedical Imaging, University of Malaya Medical Centre, 59100 Kuala Lumpur, Malaysia
| | - Alan Christopher Perkins
- Radiological Sciences, School of Medicine, University of Nottingham, Nottingham NG7 2UH, United Kingdom.
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Pourhabib Z, Ranjbar H, Bahrami Samani A. ESTIMATION OF HUMAN DOSE OF 188/186RE-HEDP COCKTAIL BASED ON OLINDA/EXM AND DISTRIBUTION DATA IN RATS. RADIATION PROTECTION DOSIMETRY 2020; 190:158-164. [PMID: 32626897 DOI: 10.1093/rpd/ncaa087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/15/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
188Re and 186Re are two applicable rhenium medical radioisotopes with complementary features that make them beneficial for different sizes of tumours. The aim of this study is to investigate 188/186Re-HEDP efficacy as a cocktail by calculating absorbed radiation dose in human organs based on biodistribution data obtained by injecting it to normal rats. Three rats were sacrificed at different time intervals and the percentage of injected dose per gram of each organ was measured by direct counting from rat data. By calculating accumulated activities in each organ and extrapolating rat data to human data by the radiation dose assessment resource method and by using OLINDA/EXM software, the injected dose in various human organs was obtained. The calculated absorbed dose showed that the 188/186Re-HEDP has noticeable properties that can be more helpful in comparison with using each of the rhenium radioisotopes separately.
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Affiliation(s)
- Zahra Pourhabib
- Department of Physics, Payame Noor University (PNU), PO Box 19395-4697, Tehran, Iran
| | - Hassan Ranjbar
- Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
| | - Ali Bahrami Samani
- Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
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12
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Involvement of Differentially Expressed microRNAs in the PEGylated Liposome Encapsulated 188Rhenium-Mediated Suppression of Orthotopic Hypopharyngeal Tumor. Molecules 2020; 25:molecules25163609. [PMID: 32784458 PMCID: PMC7463599 DOI: 10.3390/molecules25163609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 12/11/2022] Open
Abstract
Hypopharyngeal cancer (HPC) accounts for the lowest survival rate among all types of head and neck cancers (HNSCC). However, the therapeutic approach for HPC still needs to be investigated. In this study, a theranostic 188Re-liposome was prepared to treat orthotopic HPC tumors and analyze the deregulated microRNA expressive profiles. The therapeutic efficacy of 188Re-liposome on HPC tumors was evaluated using bioluminescent imaging followed by next generation sequencing (NGS) analysis, in order to address the deregulated microRNAs and associated signaling pathways. The differentially expressed microRNAs were also confirmed using clinical HNSCC samples and clinical information from The Cancer Genome Atlas (TCGA) database. Repeated doses of 188Re-liposome were administrated to tumor-bearing mice, and the tumor growth was apparently suppressed after treatment. For NGS analysis, 13 and 9 microRNAs were respectively up-regulated and down-regulated when the cutoffs of fold change were set to 5. Additionally, miR-206-3p and miR-142-5p represented the highest fold of up-regulation and down-regulation by 188Re-liposome, respectively. According to Differentially Expressed MiRNAs in human Cancers (dbDEMC) analysis, most of 188Re-liposome up-regulated microRNAs were categorized as tumor suppressors, while down-regulated microRNAs were oncogenic. The KEGG pathway analysis showed that cancer-related pathways and olfactory and taste transduction accounted for the top pathways affected by 188Re-liposome. 188Re-liposome down-regulated microRNAs, including miR-143, miR-6723, miR-944, and miR-136 were associated with lower survival rates at a high expressive level. 188Re-liposome could suppress the HPC tumors in vivo, and the therapeutic efficacy was associated with the deregulation of microRNAs that could be considered as a prognostic factor.
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13
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Cordani M, Strippoli R, Somoza Á. Nanomaterials as Inhibitors of Epithelial Mesenchymal Transition in Cancer Treatment. Cancers (Basel) 2019; 12:E25. [PMID: 31861725 PMCID: PMC7017008 DOI: 10.3390/cancers12010025] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/13/2019] [Indexed: 02/06/2023] Open
Abstract
Abstract: Epithelial-mesenchymal transition (EMT) has emerged as a key regulator of cell invasion and metastasis in cancers. Besides the acquisition of migratory/invasive abilities, the EMT process is tightly connected with the generation of cancer stem cells (CSCs), thus contributing to chemoresistance. However, although EMT represents a relevant therapeutic target for cancer treatment, its application in the clinic is still limited due to various reasons, including tumor-stage heterogeneity, molecular-cellular target specificity, and appropriate drug delivery. Concerning this last point, different nanomaterials may be used to counteract EMT induction, providing novel therapeutic tools against many different cancers. In this review, (1) we discuss the application of various nanomaterials for EMT-based therapies in cancer, (2) we summarize the therapeutic relevance of some of the proposed EMT targets, and (3) we review the potential benefits and weaknesses of each approach.
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Affiliation(s)
- Marco Cordani
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), 28049 Madrid, Spain
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy;
- National Institute for Infectious Diseases “Lazzaro Spallanzani” I.R.C.C.S., 00149 Rome, Italy
| | - Álvaro Somoza
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), 28049 Madrid, Spain
- CNB-CSIC-IMDEA Nanociencia Associated Unit “Unidad de Nanobiotecnología”, 28049 Madrid, Spain
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14
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Loya J, Zhang C, Cox E, Achrol AS, Kesari S. Biological intratumoral therapy for the high-grade glioma part II: vector- and cell-based therapies and radioimmunotherapy. CNS Oncol 2019; 8:CNS40. [PMID: 31747784 PMCID: PMC6880300 DOI: 10.2217/cns-2019-0002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Management of high-grade gliomas (HGGs) remains a complex challenge with an overall poor prognosis despite aggressive multimodal treatment. New translational research has focused on maximizing tumor cell eradication through improved tumor cell targeting while minimizing collateral systemic side effects. In particular, biological intratumoral therapies have been the focus of novel translational research efforts due to their inherent potential to be both dynamically adaptive and target specific. This two part review will provide an overview of biological intratumoral therapies that have been evaluated in human clinical trials in HGGs, and summarize key advances and remaining challenges in the development of these therapies as a potential new paradigm in the management of HGGs. Part II discusses vector-based therapies, cell-based therapies and radioimmunotherapy.
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Affiliation(s)
- Joshua Loya
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48202, USA
| | - Charlie Zhang
- Buffalo School of Medicine, State University of New York, Buffalo, NY 14202, USA
| | - Emily Cox
- Providence Medical Research Center, Spokane, WA 99204, USA
| | - Achal S Achrol
- John Wayne Cancer Institute, Pacific Neuroscience Institute, Santa Monica, CA 90404, USA
| | - Santosh Kesari
- John Wayne Cancer Institute, Pacific Neuroscience Institute, Santa Monica, CA 90404, USA
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15
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Lepareur N, Lacœuille F, Bouvry C, Hindré F, Garcion E, Chérel M, Noiret N, Garin E, Knapp FFR. Rhenium-188 Labeled Radiopharmaceuticals: Current Clinical Applications in Oncology and Promising Perspectives. Front Med (Lausanne) 2019; 6:132. [PMID: 31259173 PMCID: PMC6587137 DOI: 10.3389/fmed.2019.00132] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/29/2019] [Indexed: 12/14/2022] Open
Abstract
Rhenium-188 (188Re) is a high energy beta-emitting radioisotope with a short 16.9 h physical half-life, which has been shown to be a very attractive candidate for use in therapeutic nuclear medicine. The high beta emission has an average energy of 784 keV and a maximum energy of 2.12 MeV, sufficient to penetrate and destroy targeted abnormal tissues. In addition, the low-abundant gamma emission of 155 keV (15%) is efficient for imaging and for dosimetric calculations. These key characteristics identify 188Re as an important therapeutic radioisotope for routine clinical use. Moreover, the highly reproducible on-demand availability of 188Re from the 188W/188Re generator system is an important feature and permits installation in hospital-based or central radiopharmacies for cost-effective availability of no-carrier-added (NCA) 188Re. Rhenium-188 and technetium-99 m exhibit similar chemical properties and represent a “theranostic pair.” Thus, preparation and targeting of 188Re agents for therapy is similar to imaging agents prepared with 99mTc, the most commonly used diagnostic radionuclide. Over the last three decades, radiopharmaceuticals based on 188Re-labeled small molecules, including peptides, antibodies, Lipiodol and particulates have been reported. The successful application of these 188Re-labeled therapeutic radiopharmaceuticals has been reported in multiple early phase clinical trials for the management of various primary tumors, bone metastasis, rheumatoid arthritis, and endocoronary interventions. This article reviews the use of 188Re-radiopharmaceuticals which have been investigated in patients for cancer treatment, demonstrating that 188Re represents a cost effective alternative for routine clinical use in comparison to more expensive and/or less readily available therapeutic radioisotopes.
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Affiliation(s)
- Nicolas Lepareur
- Comprehensive Cancer Center Eugène Marquis Rennes, France.,Univ Rennes Inra, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer)-UMR_A 1341, UMR_S 1241, Rennes, France
| | - Franck Lacœuille
- Angers University Hospital Angers, France.,Univ Angers Univ Nantes, Inserm, CNRS, CRCINA (Centre de Recherche en Cancérologie et Immunologie Nantes-Angers)-UMR 1232, ERL 6001, Nantes, France
| | - Christelle Bouvry
- Comprehensive Cancer Center Eugène Marquis Rennes, France.,Univ Rennes CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, France
| | - François Hindré
- Univ Angers Univ Nantes, Inserm, CNRS, CRCINA (Centre de Recherche en Cancérologie et Immunologie Nantes-Angers)-UMR 1232, ERL 6001, Nantes, France.,Univ Angers PRIMEX (Plateforme de Radiobiologie et d'Imagerie EXperimentale), Angers, France
| | - Emmanuel Garcion
- Univ Angers Univ Nantes, Inserm, CNRS, CRCINA (Centre de Recherche en Cancérologie et Immunologie Nantes-Angers)-UMR 1232, ERL 6001, Nantes, France.,Univ Angers PRIMEX (Plateforme de Radiobiologie et d'Imagerie EXperimentale), Angers, France
| | - Michel Chérel
- Univ Angers Univ Nantes, Inserm, CNRS, CRCINA (Centre de Recherche en Cancérologie et Immunologie Nantes-Angers)-UMR 1232, ERL 6001, Nantes, France.,ICO (Institut de Cancérologie de l'Ouest) Comprehensive Cancer Center René Gauducheau, Saint-Herblain, France
| | - Nicolas Noiret
- Univ Rennes CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, France.,ENSCR (Ecole Nationale Supérieure de Chimie de Rennes) Rennes, France
| | - Etienne Garin
- Comprehensive Cancer Center Eugène Marquis Rennes, France.,Univ Rennes Inra, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer)-UMR_A 1341, UMR_S 1241, Rennes, France
| | - F F Russ Knapp
- Emeritus Medical Radioisotopes Program, ORNL (Oak Ridge National Laboratory), Oak Ridge, TN, United States
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16
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Stukalov Y, Grigorieva E, Smirnova A, Lipengolts A, Kubasova I, Pozdniakova N, Lukashina M. Experimental study of dendrimer-based nanoparticles with RGD-peptide for anticancer radionuclide therapy. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2019. [DOI: 10.24075/brsmu.2018.089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Radionuclide therapy (RNT) is an effective modality for treating multiple metastases in patients with cancer. The list of malignancies that can be managed with RNT expands with the arrival of novel tumoritropic radiopharmaceuticals (RP). A versatile delivery platform capable of carrying various therapeutic and diagnostic radionuclides, as well as vector molecules needed to achieve sufficient specificity to tumor cells and ensure therapeutic efficacy may hold great promise for radiation therapy. The aim of this work was to assess the performance of a delivery system based on the original dendrimer. The dendrimer demonstrated low toxicity in mice (LD50 was 779 ± 111 mg/kg). To study the specificity of the dendrimer to tumor cells and its therapeutic efficacy, we used a nanostructure (NS) composed of the dendrimer itself, the RGD peptide and 188Re (188Re-NS). Lewis lung carcinoma LLC1 was used as a tumor model. The biodistribution analysis revealed that the compound effectively accumulated in the tumor demonstrating a tumor-to-normal ratio >1 (relative to healthy organs and tissues) and retention time of at least 6 hours. Injections of 185 MBq/kg 188Re-NS caused a statistically significant inhibition of tumor growth (p < 0.05) by day 7 following the injection (Т/С = 5%), which remained stable for 6 days. Our findings suggest that the proposed dendrimer is a promising platform for RP delivery.
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Affiliation(s)
- Yu.V. Stukalov
- Blokhin National Medical Research Center of Oncology, Moscow
| | | | - A.V. Smirnova
- Blokhin National Medical Research Center of Oncology, Moscow; The Loginov Moscow Clinical Scientific Center, Moscow
| | - A.A. Lipengolts
- Blokhin National Medical Research Center of Oncology, Moscow; Burnazyan Federal Medical Biophysical Center, Moscow
| | - I.Yu. Kubasova
- Blokhin National Medical Research Center of Oncology, Moscow
| | | | - M.I. Lukashina
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow
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17
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Bouvry C, Palard X, Edeline J, Ardisson V, Loyer P, Garin E, Lepareur N. Transarterial Radioembolization (TARE) Agents beyond 90Y-Microspheres. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1435302. [PMID: 30687734 PMCID: PMC6330886 DOI: 10.1155/2018/1435302] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/19/2018] [Indexed: 12/14/2022]
Abstract
Liver malignancies, either primary tumours (mainly hepatocellular carcinoma and cholangiocarcinoma) or secondary hepatic metastases, are a major cause of death, with an increasing incidence. Among them, hepatocellular carcinoma (HCC) presents with a dark prognosis because of underlying liver diseases and an often late diagnosis. A curative surgical treatment can therefore only be proposed in 20 to 30% of the patients. However, new treatment options for intermediate to advanced stages, such as internal radionuclide therapy, seem particularly attractive. Transarterial radioembolization (TARE), which consists in the use of intra-arterial injection of a radiolabelled embolising agent, has led to very promising results. TARE with 90Y-loaded microspheres is now becoming an established procedure to treat liver tumours, with two commercially available products (namely, SIR-Sphere® and TheraSphere®). However, this technology remains expensive and is thus not available everywhere. The aim of this review is to describe TARE alternative technologies currently developed and investigated in clinical trials, with special emphasis on HCC.
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Affiliation(s)
- C. Bouvry
- Comprehensive Cancer Centre Eugène Marquis, 35042 Rennes, France
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, 35000 Rennes, France
| | - X. Palard
- Comprehensive Cancer Centre Eugène Marquis, 35042 Rennes, France
- Univ Rennes, Inserm, LTSI (Laboratoire Traitement du Signal et de l'Image), UMR_S 1099, 35000 Rennes, France
| | - J. Edeline
- Comprehensive Cancer Centre Eugène Marquis, 35042 Rennes, France
- Univ Rennes, Inra, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer), UMR_A 1341, UMR_S 1241, 35000 Rennes, France
| | - V. Ardisson
- Comprehensive Cancer Centre Eugène Marquis, 35042 Rennes, France
| | - P. Loyer
- Univ Rennes, Inra, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer), UMR_A 1341, UMR_S 1241, 35000 Rennes, France
| | - E. Garin
- Comprehensive Cancer Centre Eugène Marquis, 35042 Rennes, France
- Univ Rennes, Inra, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer), UMR_A 1341, UMR_S 1241, 35000 Rennes, France
| | - N. Lepareur
- Comprehensive Cancer Centre Eugène Marquis, 35042 Rennes, France
- Univ Rennes, Inra, Inserm, Institut NUMECAN (Nutrition, Métabolismes et Cancer), UMR_A 1341, UMR_S 1241, 35000 Rennes, France
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18
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Esquinas PL, Shinto A, Kamaleshwaran KK, Joseph J, Celler A. Biodistribution, pharmacokinetics, and organ-level dosimetry for 188Re-AHDD-Lipiodol radioembolization based on quantitative post-treatment SPECT/CT scans. EJNMMI Phys 2018; 5:30. [PMID: 30523435 PMCID: PMC6283804 DOI: 10.1186/s40658-018-0227-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 08/08/2018] [Indexed: 12/25/2022] Open
Abstract
Background Rhenium-188-labelled-Lipiodol radioembolization is a safe and cost-effective treatment for primary liver cancer. In order to determine correlations between treatment doses and patient response to therapy, accurate patient-specific dosimetry is required. Up to date, the reported dosimetry of 188Re-Lipiodol has been based on whole-body (WB) planar imaging only, which has limited quantitative accuracy. The aim of the present study is to determine the in vivo pharmacokinetics, bio-distribution, and organ-level dosimetry of 188Re-AHDD-Lipiodol radioembolization using a combination of post-treatment planar and quantitative SPECT/CT images. Furthermore, based on the analysis of the pharmacokinetic data, a practical and relatively simple imaging and dosimetry method that could be implemented in clinics for 188Re-AHDD-Lipiodol radioembolization is proposed. Thirteen patients with histologically proven hepatocellular carcinoma underwent 188Re-AHDD-Lipiodol radioembolization. A series of 2–3 WB planar images and one SPECT/CT scan were acquired over 48 h after the treatment. The time-integrated activity coefficients (TIACs, also known as residence-times) and absorbed doses of tumors and organs at risk (OARs) were determined using a hybrid WB/SPECT imaging method. Results Whole-body imaging showed that 188Re-AHDD-Lipiodol accumulated mostly in the tumor and liver tissue but a non-negligible amount of the pharmaceutical was also observed in the stomach, lungs, salivary glands, spleen, kidneys, and urinary bladder. On average, the measured effective half-life of 188Re-AHDD-Lipiodol was 12.5 ± 1.9 h in tumor. The effective half-life in the liver and lungs (the two organs at risk) was 12.6 ± 1.7 h and 12.0 ± 1.9 h, respectively. The presence of 188Re in other organs was probably due to the chemical separation and subsequent release of the free radionuclide from Lipiodol. The average doses per injected activity in the tumor, liver, and lungs were 23.5 ± 40.8 mGy/MBq, 2.12 ± 1.78 mGy/MBq, and 0.11 ± 0.05 mGy/MBq, respectively. The proposed imaging and dosimetry method, consisting of a single SPECT/CT for activity determination followed by 188Re-AHDD-Lipiodol clearance with the liver effective half-life of 12.6 h, resulted in TIACs estimates (and hence, doses) mostly within ± 20% from the reference TIACs (estimated using three WB images and one SPECT/CT). Conclusions The large inter-patient variability of the absorbed doses in tumors and normal tissue in 188Re-HDD-Lipiodol radioembolization patients emphasizes the importance of patient-specific dosimetry calculations based on quantitative post-treatment SPECT/CT imaging. Electronic supplementary material The online version of this article (10.1186/s40658-018-0227-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pedro L Esquinas
- Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada. .,Medical Imaging Research Group, Vancouver, British Columbia, Canada.
| | - Ajit Shinto
- Department of Nuclear Medicine, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India
| | | | - Jephy Joseph
- Department of Nuclear Medicine, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India
| | - Anna Celler
- Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada.,Medical Imaging Research Group, Vancouver, British Columbia, Canada
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19
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Scales N, Chen J, Aughterson RD, Karatchevtseva I, Stopic A, Lumpkin GR, Luca V. Porous ZrC-carbon microspheres as potential insoluble target matrices for production of 188W/188Re. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6059-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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PEGylated liposome-encapsulated rhenium-188 radiopharmaceutical inhibits proliferation and epithelial-mesenchymal transition of human head and neck cancer cells in vivo with repeated therapy. Cell Death Discov 2018; 4:100. [PMID: 30393570 PMCID: PMC6208374 DOI: 10.1038/s41420-018-0116-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/11/2018] [Accepted: 07/16/2018] [Indexed: 12/17/2022] Open
Abstract
Human head and neck squamous cell carcinoma (HNSCC) is usually treated with chemoradiotherapy, but the therapeutic efficacy could be hampered by intrinsic radioresistance and early relapse. Repeated administrations of rhenium-188 (188Re)-conjugated radiopharmaceutical has been reported to escalate the radiation doses for better control of advanced human cancers. Here we found that high dosage of 188Re-liposome, the liposome-encapsulated 188Re nanoparticles exhibited significant killing effects on HNSCC FaDu cells and SAS cells but not on OECM-1 cells. To investigate the biological and pharmaceutical responses of high 188Re-liposomal dosage in vivo, repeated doses of 188Re-liposome was injected into the orthotopic tumor model. FaDu cells harboring luciferase reporter genes were implanted in the buccal positions of nude mice followed by intravenous injection of 188Re-liposome. The Cerenkov luminescence imaging (CLI) was performed to demonstrate an increased accumulation of 188Re-liposome in the tumor lesion of nude mice with repeated doses compared to a single dose. Repeated doses also enhanced tumor growth delay and elongated the survival of tumor-bearing mice. These observations were associated with significant loss of Ki-67 proliferative marker and epithelial–mesenchymal transition (EMT) markers in excised tumor cells. The body weights of mice were not significantly changed using different doses of 188Re-liposome, yet repeated doses led to lower blood counts than a single dose. Furthermore, the pharmacokinetic analysis showed that the internal circulation of repeated 188Re-liposomal therapy was elongated. The biodistribution analysis also demonstrated that accumulations of 188Re-liposome in tumor lesions and bone marrow were increased using repeated doses. The absorbed dose of repeated doses over a single dose was about twofold estimated for a 1 g tumor. Together, these data suggest that the radiopharmacotherapy of 188Re-liposome can enhance tumor suppression, survival extension, and internal circulation without acute toxicity using repeated administrations.
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21
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Kumar C, Sharma R, Vats K, Mallia MB, Das T, Sarma HD, Dash A. Comparison of the efficacy of 177Lu-EDTMP, 177Lu-DOTMP and 188Re-HEDP towards bone osteosarcoma: an in vitro study. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6283-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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22
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Concentration protocol of rhenium-188 perrhenate eluted from tungsten-188/rhenium-188 generator for the preparation of high-yield rhenium-188-labelled radiopharmaceuticals. Nucl Med Commun 2018; 39:957-959. [DOI: 10.1097/mnm.0000000000000893] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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Chiang PF, Peng CL, Shih YH, Cho YH, Yu CS, Kuo YM, Shieh MJ, Luo TY. Biodegradable and Multifunctional Microspheres for Treatment of Hepatoma through Transarterial Embolization. ACS Biomater Sci Eng 2018; 4:3425-3433. [DOI: 10.1021/acsbiomaterials.8b00635] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ping-Fang Chiang
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
| | - Cheng-Liang Peng
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
| | - Ying-Hsia Shih
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
| | - Yung-Hung Cho
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
| | - Chun-Sheng Yu
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
| | - Yu-Min Kuo
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
| | - Ming-Jium Shieh
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, #1, Section 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Tsai-Yueh Luo
- Isotope Application Division, Institute of Nuclear Energy Research, Longtan, Taoyuan 325, Taiwan
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24
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Radiolabeling of zoledronic acid with 188Re as a new palliative agent radiotracer in treatment of bone tumors. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5781-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Ahmad I, Nisar H. Dosimetry perspectives in radiation synovectomy. Phys Med 2018; 47:64-72. [PMID: 29609820 DOI: 10.1016/j.ejmp.2018.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 01/11/2018] [Accepted: 02/16/2018] [Indexed: 11/27/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that can potentially damage the synovial joints. One of the effective treatment modality for RA is radiation synovectomy (RSV) where properly selected radionuclide is injected into the joint space, enabling controlled destruction of diseased synovial membrane via radiation exposure. Radiation dosimetry in RSV appears challenging due to the heterogeneous nature of synovial membrane, nonuniform distribution and leakage of radionuclide from the synovial cavity. This article reviews the dosimetric perspective pertaining to RSV. Specifically, characteristics of radionuclide for RSV and radiation dose to target and non-target (i.e., articular cartilage, bone, bloodstream, gonads, etc.) tissues of patient have been discussed. The personal dose Hp(0.07) to the hands of medical staff (i.e., radiochemist, therapist physician, nurse) may be considerably high due to handling of high specific activities (∼500 MBq/ml for Y-90); such doses are typically measured using thermoluminescence dosimeters (TLD) ring dosimeters and ranges from 1 to 21.5, 0.1 to 40 and 0.1 to 5 µSv/MBq for the radiochemist, therapist physician and the nurse, respectively. Methods to minimize radiation doses to the patient, medical staff and public are elaborated. Contamination risks and precautionary measures are also reported.
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Affiliation(s)
- Iftikhar Ahmad
- Institute of Radiotherapy and Nuclear Medicine (IRNUM), Peshawar, Pakistan.
| | - Hasan Nisar
- Pakistan Institute of Engineering and Applied Sciences (PIEAS), 45650 Islamabad, Pakistan
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26
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Esquinas PL, Uribe CF, Gonzalez M, Rodríguez-Rodríguez C, Häfeli UO, Celler A. Accuracy of Rhenium-188 SPECT/CT activity quantification for applications in radionuclide therapy using clinical reconstruction methods. Phys Med Biol 2017; 62:6379-6396. [PMID: 28726679 DOI: 10.1088/1361-6560/aa7926] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The main applications of 188Re in radionuclide therapies include trans-arterial liver radioembolization and palliation of painful bone-metastases. In order to optimize 188Re therapies, the accurate determination of radiation dose delivered to tumors and organs at risk is required. Single photon emission computed tomography (SPECT) can be used to perform such dosimetry calculations. However, the accuracy of dosimetry estimates strongly depends on the accuracy of activity quantification in 188Re images. In this study, we performed a series of phantom experiments aiming to investigate the accuracy of activity quantification for 188Re SPECT using high-energy and medium-energy collimators. Objects of different shapes and sizes were scanned in Air, non-radioactive water (Cold-water) and water with activity (Hot-water). The ordered subset expectation maximization algorithm with clinically available corrections (CT-based attenuation, triple-energy window (TEW) scatter and resolution recovery was used). For high activities, the dead-time corrections were applied. The accuracy of activity quantification was evaluated using the ratio of the reconstructed activity in each object to this object's true activity. Each object's activity was determined with three segmentation methods: a 1% fixed threshold (for cold background), a 40% fixed threshold and a CT-based segmentation. Additionally, the activity recovered in the entire phantom, as well as the average activity concentration of the phantom background were compared to their true values. Finally, Monte-Carlo simulations of a commercial [Formula: see text]-camera were performed to investigate the accuracy of the TEW method. Good quantification accuracy (errors <10%) was achieved for the entire phantom, the hot-background activity concentration and for objects in cold background segmented with a 1% threshold. However, the accuracy of activity quantification for objects segmented with 40% threshold or CT-based methods decreased (errors >15%), mostly due to partial-volume effects. The Monte-Carlo simulations confirmed that TEW-scatter correction applied to 188Re, although practical, yields only approximate estimates of the true scatter.
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Affiliation(s)
- Pedro L Esquinas
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
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27
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Sharma R, Kumar C, Mallia MB, Kameswaran M, Sarma HD, Banerjee S, Dash A. In Vitro Evaluation of 188Re-HEDP: A Mechanistic View of Bone Pain Palliations. Cancer Biother Radiopharm 2017; 32:184-191. [PMID: 28598690 DOI: 10.1089/cbr.2017.2200] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Skeletal metastasis is common in advanced stages of various cancers, particularly of the prostate and breast carcinoma. 188Re-HEDP (1-hydroxyethane 1, 1-diphosphonic acid) is a clinically established radiopharmaceutical for bone pain palliation of osseous metastasis, and it takes advantage of high bone affinity. The present work aims at elucidating the possible mechanisms of cell killing by 188Re-HEDP in osteosarcoma cells and biodistribution studies in mice.188Re-HEDP complex was prepared by using lyophilized HEDP kits prepared in-house. In vitro cellular uptake in mineralized bone matrix was found to be 13.41% ± 0.46% (at 2 hours), which was reduced to 2.44% ± 0.12% in the presence of excess amounts of unlabeled HEDP ligand. Uptake of 188Re-HEDP in bones of normal Swiss mice in vivo and mineralized bone in vitro indicated its affinity toward the bone matrix. The study also revealed that cellular toxicity and G2/M cell cycle arrest were dose dependent. At higher doses, G2/M cell cycle arrest was observed, which might be the major cause of cell death and a possible mechanism of bone pain relief.
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Affiliation(s)
- Rohit Sharma
- 1 Radiopharmaceuticals Division, Bhabha Atomic Research Centre , Mumbai, India
| | - Chandan Kumar
- 1 Radiopharmaceuticals Division, Bhabha Atomic Research Centre , Mumbai, India
| | - Madhava B Mallia
- 1 Radiopharmaceuticals Division, Bhabha Atomic Research Centre , Mumbai, India
| | - Mythili Kameswaran
- 1 Radiopharmaceuticals Division, Bhabha Atomic Research Centre , Mumbai, India
| | - Haladhar D Sarma
- 2 Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre , Mumbai, India
| | - Sharmila Banerjee
- 3 Radiation Medicine Centre, Bhabha Atomic Research Centre , Mumbai, India
| | - Ashutosh Dash
- 1 Radiopharmaceuticals Division, Bhabha Atomic Research Centre , Mumbai, India
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28
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Lange R, Overbeek F, de Klerk JMH, Pasker-de Jong PCM, van den Berk AM, Ter Heine R, Rodenburg CJ, Kooistra A, Hendrikse NH, Bloemendal HJ. Treatment of painful bone metastases in prostate and breast cancer patients with the therapeutic radiopharmaceutical rhenium-188-HEDP. Clinical benefit in a real-world study. Nuklearmedizin 2016; 55:188-95. [PMID: 27443809 DOI: 10.3413/nukmed-0828-16-05] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022]
Abstract
AIM Rhenium-188-HEDP ((188)Re-HEDP) is an effective radiopharmaceutical for the palliative treatment of osteoblastic bone metastases. However, only limited data on its routine use are available and its effect on quality of life (QoL) has not been studied. Therefore, we evaluated the clinical benefit of (188)Re-HEDP in routine clinical care. PATIENTS AND METHODS Prostate or breast cancer patients with painful bone metastases receiving (188)Re-HEDP as a routine clinical procedure were eligible for evaluation. Clinical benefit was assessed in terms of efficacy and toxicity. Pain palliation and QoL were monitored using the visual analogue scale (VAS), corrected for opioid intake, and the EORTC QLQ-C30 Global health status/QoL-scale. Thrombocyte and leukocyte nadirs were used to assess haematological toxicity. RESULTS 45 and 47 patients were evaluable for pain palliation and QoL, respectively. After a single injection of (188)Re-HEDP, the overall pain response rate was 69% and mean VAS-scores decreased relevantly and significantly (p < 0.05). Repeated treatment resulted in similar pain response. The overall QoL response rate was 68% and mean Global health status/QoL-scores increased relevantly and significantly. Haematological side effects were mild and transient. CONCLUSION The clinically relevant response on pain and quality of life and the limited adverse events prove clinical benefit of treatment with (188)Re-HEDP and support its use in routine clinical care. Its effectiveness appears comparable to that of external beam radiotherapy.
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Affiliation(s)
- Rogier Lange
- Rogier Lange, PharmD, Hospital Pharmacist/Radiopharmacist, Maatweg 3, PO Box 1502, 3800 BM Amersfoort the Netherlands, Tel. +31/33/850-44 33, Fax -23 06,
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Palliative treatment of metastatic bone pain with radiopharmaceuticals: A perspective beyond Strontium-89 and Samarium-153. Appl Radiat Isot 2016; 110:87-99. [DOI: 10.1016/j.apradiso.2016.01.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 12/04/2015] [Accepted: 01/04/2016] [Indexed: 11/22/2022]
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Ma W, Shao Y, Yang W, Li G, Zhang Y, Zhang M, Zuo C, Chen K, Wang J. Evaluation of (188)Re-labeled NGR-VEGI protein for radioimaging and radiotherapy in mice bearing human fibrosarcoma HT-1080 xenografts. Tumour Biol 2016; 37:9121-9. [PMID: 26768609 DOI: 10.1007/s13277-016-4810-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/06/2016] [Indexed: 11/25/2022] Open
Abstract
Vascular endothelial growth inhibitor (VEGI) is an anti-angiogenic protein, which includes three isoforms: VEGI-174, VEGI-192, and VEGI-251. The NGR (asparagine-glycine-arginine)-containing peptides can specifically bind to CD13 (Aminopeptidase N) receptor which is overexpressed in angiogenic blood vessels and tumor cells. In this study, a novel NGR-VEGI fusion protein was prepared and labeled with (188)Re for radioimaging and radiotherapy in mice bearing human fibrosarcoma HT-1080 xenografts. Single photon emission computerized tomography (SPECT) imaging results revealed that (188)Re-NGR-VEGI exhibits good tumor-to-background contrast in CD13-positive HT-1080 tumor xenografts. The CD13 specificity of (188)Re-NGR-VEGI was further verified by significant reduction of tumor uptake in HT-1080 tumor xenografts with co-injection of the non-radiolabeled NGR-VEGI protein. The biodistribution results demonstrated good tumor-to-muscle ratio (4.98 ± 0.25) of (188)Re-NGR-VEGI at 24 h, which is consistent with the results from SPECT imaging. For radiotherapy, 18.5 MBq of (188)Re-NGR-VEGI showed excellent tumor inhibition effect in HT-1080 tumor xenografts with no observable toxicity, which was confirmed by the tumor size change and hematoxylin and eosin (H&E) staining of major mouse organs. In conclusion, these data demonstrated that (188)Re-NGR-VEGI has the potential as a theranostic agent for CD13-targeted tumor imaging and therapy.
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Affiliation(s)
- Wenhui Ma
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
- Molecular Imaging Center, Department of Radiology, Keck School of Medicine, University of Southern California, 2250 Alcazar Street, CSC 103, Los Angeles, CA, 90033-9061, USA
| | - Yahui Shao
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
- Department of Nuclear Medicine, General Hospital of Jinan Military Region, Jinan, Shandong, China
| | - Weidong Yang
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Guiyu Li
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Yingqi Zhang
- The State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, School of Pharmacy, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Mingru Zhang
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Changjing Zuo
- Department of Nuclear Medicine, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Kai Chen
- Molecular Imaging Center, Department of Radiology, Keck School of Medicine, University of Southern California, 2250 Alcazar Street, CSC 103, Los Angeles, CA, 90033-9061, USA.
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China.
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Guerra Liberal FDC, Tavares AAS, Tavares JMRS. Comparative analysis of 11 different radioisotopes for palliative treatment of bone metastases by computational methods. Med Phys 2015; 41:114101. [PMID: 25370676 DOI: 10.1118/1.4897240] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Throughout the years, the palliative treatment of bone metastases using bone seeking radiotracers has been part of the therapeutic resources used in oncology, but the choice of which bone seeking agent to use is not consensual across sites and limited data are available comparing the characteristics of each radioisotope. Computational simulation is a simple and practical method to study and to compare a variety of radioisotopes for different medical applications, including the palliative treatment of bone metastases. This study aims to evaluate and compare 11 different radioisotopes currently in use or under research for the palliative treatment of bone metastases using computational methods. METHODS Computational models were used to estimate the percentage of deoxyribonucleic acid (DNA) damage (fast Monte Carlo damage algorithm), the probability of correct DNA repair (Monte Carlo excision repair algorithm), and the radiation-induced cellular effects (virtual cell radiobiology algorithm) post-irradiation with selected particles emitted by phosphorus-32 ((32)P), strontium-89 ((89)Sr), yttrium-90 ((90)Y ), tin-117 ((117m)Sn), samarium-153 ((153)Sm), holmium-166 ((166)Ho), thulium-170 ((170)Tm), lutetium-177 ((177)Lu), rhenium-186 ((186)Re), rhenium-188 ((188)Re), and radium-223 ((223)Ra). RESULTS (223)Ra alpha particles, (177)Lu beta minus particles, and (170)Tm beta minus particles induced the highest cell death of all investigated particles and radioisotopes. The cell survival fraction measured post-irradiation with beta minus particles emitted by (89)Sr and (153)Sm, two of the most frequently used radionuclides in the palliative treatment of bone metastases in clinical routine practice, was higher than (177)Lu beta minus particles and (223)Ra alpha particles. CONCLUSIONS (223)Ra and (177)Lu hold the highest potential for palliative treatment of bone metastases of all radioisotopes compared in this study. Data reported here may prompt future in vitro and in vivo experiments comparing different radionuclides for palliative treatment of bone metastases, raise the need for the careful rethinking of the current widespread clinical use of (89)Sr and (153)Sm, and perhaps strengthen the use of (223)Ra and (177)Lu in the palliative treatment of bone metastases.
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Affiliation(s)
- Francisco D C Guerra Liberal
- Instituto de Engenharia Mecânica e Gestão Industrial, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, Porto 4200-465, Portugal
| | - Adriana Alexandre S Tavares
- Instituto de Engenharia Mecânica e Gestão Industrial, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, Porto 4200-465, Portugal
| | - João Manuel R S Tavares
- Instituto de Engenharia Mecânica e Gestão Industrial, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, Porto 4200-465, Portugal
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Kratochwil C, Giesel FL, Leotta K, Eder M, Hoppe-Tich T, Youssoufian H, Kopka K, Babich JW, Haberkorn U. PMPA for Nephroprotection in PSMA-Targeted Radionuclide Therapy of Prostate Cancer. J Nucl Med 2015; 56:293-8. [DOI: 10.2967/jnumed.114.147181] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Dash A, Knapp Jr FF(R. An overview of radioisotope separation technologies for development of 188W/188Re radionuclide generators providing 188Re to meet future research and clinical demands. RSC Adv 2015. [DOI: 10.1039/c5ra03890a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Separation technologies for 188W/188Re radionuclide generators.
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Affiliation(s)
- Ashutosh Dash
- Isotope Production and Applications Division
- Bhabha Atomic Research Centre (BARC)
- Mumbai 400 085
- India
| | - F. F. (Russ) Knapp Jr
- Emeritus
- Medical Isotopes Program
- Isotope Development Group
- Oak Ridge National Laboratory (ORNL)
- Oak Ridge
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Knapp FF, Pillai MRA, Osso JA, Dash A. Re-emergence of the important role of radionuclide generators to provide diagnostic and therapeutic radionuclides to meet future research and clinical demands. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3642-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wu X, Liang H, Tan Y, Yuan C, Li S, Li X, Li G, Shi Y, Zhang X. Cell-SELEX aptamer for highly specific radionuclide molecular imaging of glioblastoma in vivo. PLoS One 2014; 9:e90752. [PMID: 24603483 PMCID: PMC3948368 DOI: 10.1371/journal.pone.0090752] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 02/03/2014] [Indexed: 11/18/2022] Open
Abstract
Glioblastoma (GBM) is the most frequent and aggressive primary adult brain tumor with poor prognosis. Epidermal growth factor receptor variant III (EGFRvIII) is the most common and highly oncogenic EGFR mutant in GBM. With the aim to generate specific molecular probes able to target EGFRvIII with high affinity, we selected four DNA aptamers (U2, U8, U19 and U31) specifically bound to U87-EGFRvIII cells that over expressed EGFRvIII with Kd values in the nanomole range by a cell-based systematic evolution of ligands by exponential enrichment (cell-SELEX) process. U87MG cells were introduced as control cells for counter selection. We further affirmed U2 and U8 identified EGFRvIII on the surface of target cells specifically. Then we radiolabeled U2 with 188Re to serve as a molecular imaging probe and observed 188Re -labeled U2 significantly targeted EGFRvIII over-expressing glioblastoma exnografts in mice. In conclusion, aptamers obtained from whole cell-SELEX strategy have great potential as molecular imaging probes that are probably beneficial to GBM diagnoses.
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Affiliation(s)
- Xidong Wu
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Huiyu Liang
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yan Tan
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Chao Yuan
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shuji Li
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaowen Li
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Guiping Li
- Department of Nuclear Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yusheng Shi
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- * E-mail: (XZ); (YS)
| | - Xingmei Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- * E-mail: (XZ); (YS)
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