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Kawasaki R, Oshige A, Yamana K, Hirano H, Nishimura K, Miura Y, Yorioka R, Sanada Y, Bando K, Tabata A, Yasuhara K, Miyazaki Y, Shinoda W, Nishimura T, Azuma H, Takata T, Sakurai Y, Tanaka H, Suzuki M, Nagasaki T, Ikeda A. HER-2-Targeted Boron Neutron Capture Therapy with Carborane-integrated Immunoliposomes Prepared via an Exchanging Reaction. Chemistry 2023; 29:e202302486. [PMID: 37792507 DOI: 10.1002/chem.202302486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/09/2023] [Accepted: 10/04/2023] [Indexed: 10/06/2023]
Abstract
Boron neutron capture therapy (BNCT) is a promising modality for cancer treatment because of its minimal invasiveness. To maximize the therapeutic benefits of BNCT, the development of efficient platforms for the delivery of boron agents is indispensable. Here, carborane-integrated immunoliposomes were prepared via an exchanging reaction to achieve HER-2-targeted BNCT. The conjugation of an anti-HER-2 antibody to carborane-integrated liposomes successfully endowed these liposomes with targeting properties toward HER-2-overexpressing human ovarian cancer cells (SK-OV3); the resulting BNCT activity toward SK-OV3 cells obtained using the current immunoliposomal system was 14-fold that of the l-BPA/fructose complex, which is a clinically available boron agent. Moreover, the growth of spheroids treated with this system followed by thermal neutron irradiation was significantly suppressed compared with treatment with the l-BPA/fructose complex.
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Affiliation(s)
- Riku Kawasaki
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Ayano Oshige
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Keita Yamana
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Hidetoshi Hirano
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Kotaro Nishimura
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Yamato Miura
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Ryuji Yorioka
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Yu Sanada
- Institute for Integrated Radiation and Nuclear Science, Kyoto University Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Kaori Bando
- Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka city, 558-8585, Japan
| | - Anri Tabata
- Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka city, 558-8585, Japan
| | - Kazuma Yasuhara
- Division of Materials Science, Graduate School of Science and Technology and Center for Digital Green-Innovation, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192, Japan
| | - Yusuke Miyazaki
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushuma-naka, Kita-ku, Okayama, 700-8530, Japan
| | - Wataru Shinoda
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushuma-naka, Kita-ku, Okayama, 700-8530, Japan
| | - Tomoki Nishimura
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, Ueda, 386-8567, Japan
| | - Hideki Azuma
- Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka city, 558-8585, Japan
| | - Takushi Takata
- Institute for Integrated Radiation and Nuclear Science, Kyoto University Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Yoshinori Sakurai
- Institute for Integrated Radiation and Nuclear Science, Kyoto University Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Minoru Suzuki
- Institute for Integrated Radiation and Nuclear Science, Kyoto University Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Takeshi Nagasaki
- Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka city, 558-8585, Japan
| | - Atsushi Ikeda
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
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Marforio TD, Carboni A, Calvaresi M. In Vivo Application of Carboranes for Boron Neutron Capture Therapy (BNCT): Structure, Formulation and Analytical Methods for Detection. Cancers (Basel) 2023; 15:4944. [PMID: 37894311 PMCID: PMC10605826 DOI: 10.3390/cancers15204944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/22/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Carboranes have emerged as one of the most promising boron agents in boron neutron capture therapy (BNCT). In this context, in vivo studies are particularly relevant, since they provide qualitative and quantitative information about the biodistribution of these molecules, which is of the utmost importance to determine the efficacy of BNCT, defining their localization and (bio)accumulation, as well as their pharmacokinetics and pharmacodynamics. First, we gathered a detailed list of the carboranes used for in vivo studies, considering the synthesis of carborane derivatives or the use of delivery system such as liposomes, micelles and nanoparticles. Then, the formulation employed and the cancer model used in each of these studies were identified. Finally, we examined the analytical aspects concerning carborane detection, identifying the main methodologies applied in the literature for ex vivo and in vivo analysis. The present work aims to identify the current strengths and weakness of the use of carboranes in BNCT, establishing the bottlenecks and the best strategies for future applications.
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Affiliation(s)
| | - Andrea Carboni
- Dipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, Italy;
| | - Matteo Calvaresi
- Dipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, Italy;
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Kozień D, Żeliszewska P, Szermer-Olearnik B, Adamczyk Z, Wróblewska A, Szczygieł A, Węgierek-Ciura K, Mierzejewska J, Pajtasz-Piasecka E, Tokarski T, Cios G, Cudziło S, Pędzich Z. Synthesis and Characterization of Boron Carbide Nanoparticles as Potential Boron-Rich Therapeutic Carriers. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6534. [PMID: 37834671 PMCID: PMC10573554 DOI: 10.3390/ma16196534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023]
Abstract
Boron carbide is one of the hardest materials in the world which can be synthesized by various methods. The most common one is a carbothermic or magnesiothermic reduction of B2O3 performed at high temperatures, where the obtained powder still requires grinding and purification. The goal of this research is to present the possibility of synthesizing B4C nanoparticles from elements via vapor deposition and modifying the morphology of the obtained powders, particularly those synthesized at high temperatures. B4C nanoparticles were synthesized in the process of direct synthesis from boron and carbon powders heated at the temperature of 1650 °C for 2 h under argon and characterized by using scanning electron microscopy, transmission electron microscopy, atomic force microscopy, X-ray diffraction analysis, and dynamic light scattering measurements. The physicochemical characteristics of B4C nanoparticles were determined, including the diffusion coefficients, hydrodynamic diameter, electrophoretic mobilities, and zeta potentials. An evaluation of the obtained B4C nanoparticles was performed on several human and mouse cell lines, showing the relation between the cytotoxicity effect and the size of the synthesized nanoparticles. Assessing the suitability of the synthesized B4C for further modifications in terms of its applicability in boron neutron capture therapy was the overarching goal of this research.
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Affiliation(s)
- Dawid Kozień
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Krakow, Mickiewicza, 30-059 Krakow, Poland;
| | - Paulina Żeliszewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, 30-239 Krakow, Poland;
| | - Bożena Szermer-Olearnik
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (B.S.-O.); (A.W.); (A.S.); (K.W.-C.); (J.M.); (E.P.-P.)
| | - Zbigniew Adamczyk
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, 30-239 Krakow, Poland;
| | - Anna Wróblewska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (B.S.-O.); (A.W.); (A.S.); (K.W.-C.); (J.M.); (E.P.-P.)
| | - Agnieszka Szczygieł
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (B.S.-O.); (A.W.); (A.S.); (K.W.-C.); (J.M.); (E.P.-P.)
| | - Katarzyna Węgierek-Ciura
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (B.S.-O.); (A.W.); (A.S.); (K.W.-C.); (J.M.); (E.P.-P.)
| | - Jagoda Mierzejewska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (B.S.-O.); (A.W.); (A.S.); (K.W.-C.); (J.M.); (E.P.-P.)
| | - Elżbieta Pajtasz-Piasecka
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (B.S.-O.); (A.W.); (A.S.); (K.W.-C.); (J.M.); (E.P.-P.)
| | - Tomasz Tokarski
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, Mickiewicza 30, 30-059 Krakow, Poland; (T.T.); (G.C.)
| | - Grzegorz Cios
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, Mickiewicza 30, 30-059 Krakow, Poland; (T.T.); (G.C.)
| | - Stanisław Cudziło
- Faculty of Advanced Technologies and Chemistry, Military University of Technology, Gen. Sylwestra Kaliskiego 2 Street, 00-908 Warsaw, Poland;
| | - Zbigniew Pędzich
- Department of Ceramics and Refractories, Faculty of Materials Science and Ceramics, AGH University of Krakow, Mickiewicza, 30-059 Krakow, Poland;
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Han Y, Geng C, Liu Y, Wu R, Li M, Yu C, Altieri S, Tang X. Calculation of the DNA damage yield and relative biological effectiveness in boron neutron capture therapy via the Monte Carlo track structure simulation. Phys Med Biol 2023; 68:175028. [PMID: 37524085 DOI: 10.1088/1361-6560/acec2a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/31/2023] [Indexed: 08/02/2023]
Abstract
Objective.Boron neutron capture therapy (BNCT) is an advanced cellular-level hadron therapy that has exhibited remarkable therapeutic efficacy in the treatment of locally invasive malignancies. Despite its clinical success, the intricate nature of relative biological effectiveness (RBE) and mechanisms responsible for DNA damage remains elusive. This work aims to quantify the RBE of compound particles (i.e. alpha and lithium) in BNCT based on the calculation of DNA damage yields via the Monte Carlo track structure (MCTS) simulation.Approach. The TOPAS-nBio toolkit was employed to conduct MCTS simulations. The calculations encompassed four steps: determination of the angle and energy spectra on the nuclear membrane, quantification of the database containing DNA damage yields for ions with specific angle and energy, accumulation of the database and spectra to obtain the DNA damage yields of compound particles, and calculation of the RBE by comparison yields of double-strand break (DSB) with the reference gamma-ray. Furthermore, the impact of cell size and microscopic boron distribution was thoroughly discussed.Main results. The DSB yields induced by compound particles in three types of spherical cells (radius equal to 10, 8, and 6μm) were found to be 13.28, 17.34, 22.15 Gy Gbp-1for boronophenylalanine (BPA), and 1.07, 3.45, 8.32 Gy Gbp-1for sodium borocaptate (BSH). The corresponding DSB-based RBE values were determined to be 1.90, 2.48, 3.16 for BPA and 0.15, 0.49, 1.19 for BSH. The calculated DSB-based RBE showed agreement with experimentally values of compound biological effectiveness for melanoma and gliosarcoma. Besides, the DNA damage yield and DSB-based RBE value exhibited an increasing trend as the cell radius decreased. The impact of the boron concentration ratio on RBE diminished once the drug enrichment surpasses a certain threshold.Significance. This work is potential to provide valuable guidance for accurate biological-weighted dose evaluation in BNCT.
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Affiliation(s)
- Yang Han
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
- Department of Physics, University of Pavia, Pavia, Italy
| | - Changran Geng
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
| | - Yuanhao Liu
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
- Neuboron Medtech. Ltd, Nanjing, People's Republic of China
| | - Renyao Wu
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
| | - Mingzhu Li
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
| | - Chenxi Yu
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
| | - Saverio Altieri
- Department of Physics, University of Pavia, Pavia, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), the section of Pavia, Pavia, Italy
| | - Xiaobin Tang
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China
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Portu AM, Espain MS, Thorp SI, Trivillin VA, Curotto P, Monti Hughes A, Pozzi ECC, Garabalino MA, Palmieri MA, Granell PN, Golmar F, Schwint AE, Saint Martin G. Enhanced Resolution of Neutron Autoradiography with UV-C Sensitization to Study Boron Microdistribution in Animal Models. Life (Basel) 2023; 13:1578. [PMID: 37511953 PMCID: PMC10381447 DOI: 10.3390/life13071578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
The assessment of boron microdistribution is essential to evaluate the suitability of boron neutron capture therapy (BNCT) in different biological models. In our laboratory, we have reported a methodology to produce cell imprints on polycarbonate through UV-C sensitization. The aim of this work is to extend the technique to tissue samples in order to enhance spatial resolution. As tissue structure largely differs from cultured cells, several aspects must be considered. We studied the influence of the parameters involved in the imprint and nuclear track formation, such as neutron fluence, different NTDs, etching and UV-C exposure times, tissue absorbance, thickness, and staining, among others. Samples from different biological models of interest for BNCT were used, exhibiting homogeneous and heterogeneous histology and boron microdistribution. The optimal conditions will depend on the animal model under study and the resolution requirements. Both the imprint sharpness and the fading effect depend on tissue thickness. While 6 h of UV-C was necessary to yield an imprint in CR-39, only 5 min was enough to observe clear imprints on Lexan. The information related to microdistribution of boron obtained with neutron autoradiography is of great relevance when assessing new boron compounds and administration protocols and also contributes to the study of the radiobiology of BNCT.
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Affiliation(s)
- Agustina Mariana Portu
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
- School of Science & Technology, National University of San Martín (UNSAM), San Martín B1650JKA, Argentina
| | - María Sol Espain
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
- School of Science & Technology, National University of San Martín (UNSAM), San Martín B1650JKA, Argentina
| | - Silvia Inés Thorp
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
| | - Verónica Andrea Trivillin
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
| | - Paula Curotto
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
| | - Andrea Monti Hughes
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
| | | | | | - Mónica Alejandra Palmieri
- Department of Biodiversity and Experimental Biology, Faculty of Exact and Natural Sciences, University of Buenos Aires (UBA), Ciudad Autónoma de Buenos Aires C1428EGA, Argentina
| | - Pablo Nicolás Granell
- Micro and Nanotechnology Centre of the Bicentennial (CNMB), National Institute of Industrial Technology (INTI), San Martín B1650JKA, Argentina
| | - Federico Golmar
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
- School of Science & Technology, National University of San Martín (UNSAM), San Martín B1650JKA, Argentina
- Micro and Nanotechnology Centre of the Bicentennial (CNMB), National Institute of Industrial Technology (INTI), San Martín B1650JKA, Argentina
| | - Amanda Elena Schwint
- National Atomic Energy Commission (CNEA), San Martín C1429BNP, Argentina
- National Scientific and Technological Research Council (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
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Espector N, Portu AM, Espain MS, Leyva G, Saint Martin G. Measurement of an evaporation coefficient in tissue sections as a correction factor for 10B determination. Histochem Cell Biol 2023:10.1007/s00418-023-02200-w. [PMID: 37126141 DOI: 10.1007/s00418-023-02200-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 05/02/2023]
Abstract
Boron neutron capture therapy (BNCT) is a cancer treatment option that combines preferential uptake of a boron compound in tumors and irradiation with thermal neutrons. For treatment planning, the boron concentration in different tissues must be considered. Neutron autoradiography using nuclear track detectors (NTD) can be applied to study both the concentration and microdistribution of boron in tissue samples. Histological sections are obtained from frozen tissue by cryosectioning. When the samples reach room temperature, they undergo an evaporation process, which leads to an increase in the boron concentration. To take this effect into account, certain correction factors (evaporation coefficients, CEv) must be applied. With this aim, a protocol was established to register and analyze mass variation of tissue sections, measured with a semimicro scale. Values of ambient temperature, pressure, and humidity were simultaneously recorded. Reproducible results of evaporation curves and CEv values were obtained for different tissue samples, which allowed the systematization of the procedure. This study could contribute to a more precise determination of boron concentration in tissue samples through the neutron autoradiography technique, which is of great relevance to make dosimetric calculations in BNCT.
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Affiliation(s)
- Natalia Espector
- Departamento de Radiobiología, Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, San Martin, B1650KNA, Buenos Aires, Argentina
| | - Agustina Mariana Portu
- Departamento de Radiobiología, Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, San Martin, B1650KNA, Buenos Aires, Argentina.
- Comisión Nacional de Investigaciones Científicas y Técnicas (CONICET), Capital Federal, Buenos Aires, Argentina.
| | - María Sol Espain
- Departamento de Radiobiología, Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, San Martin, B1650KNA, Buenos Aires, Argentina
- Comisión Nacional de Investigaciones Científicas y Técnicas (CONICET), Capital Federal, Buenos Aires, Argentina
| | - Gabriela Leyva
- Departamento de Radiobiología, Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, San Martin, B1650KNA, Buenos Aires, Argentina
| | - Gisela Saint Martin
- Departamento de Radiobiología, Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, San Martin, B1650KNA, Buenos Aires, Argentina
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C. STOCKERT JUAN, A. ROMERO SILVINA, N. FELIX-POZZI MARCELO, BL罿QUEZ-CASTRO ALFONSO. In vivo polymerization of the dopamine-borate melanin precursor: A proof-of-concept regarding boron neutron-capture therapy for melanoma. BIOCELL 2023. [DOI: 10.32604/biocell.2023.026631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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Clinical Viability of Boron Neutron Capture Therapy for Personalized Radiation Treatment. Cancers (Basel) 2022; 14:cancers14122865. [PMID: 35740531 PMCID: PMC9221296 DOI: 10.3390/cancers14122865] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/05/2022] [Accepted: 06/08/2022] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Usually, for dose planning in radiotherapy, the tumor is delimited as a volume on the image of the patient together with other clinical considerations based on populational evidence. However, the same prescription dose can provide different results, depending on the patient. Unfortunately, the biological aspects of the tumor are hardly considered in dose planning. Boron Neutron Capture Radiotherapy enables targeted treatment by incorporating boron-10 at the cellular level and irradiating with neutrons of a certain energy so that they produce nuclear reactions locally and almost exclusively damage the tumor cell. This technique is not new, but modern neutron generators and more efficient boron carriers have reactivated the clinical interest of this technique in the pursuit of more precise treatments. In this work, we review the latest technological facilities and future possibilities for the clinical implementation of BNCT and for turning it into a personalized therapy. Abstract Boron Neutron Capture Therapy (BNCT) is a promising binary disease-targeted therapy, as neutrons preferentially kill cells labeled with boron (10B), which makes it a precision medicine treatment modality that provides a therapeutic effect exclusively on patient-specific tumor spread. Contrary to what is usual in radiotherapy, BNCT proposes cell-tailored treatment planning rather than to the tumor mass. The success of BNCT depends mainly on the sufficient spatial biodistribution of 10B located around or within neoplastic cells to produce a high-dose gradient between the tumor and healthy tissue. However, it is not yet possible to precisely determine the concentration of 10B in a specific tissue in real-time using non-invasive methods. Critical issues remain to be resolved if BNCT is to become a valuable, minimally invasive, and efficient treatment. In addition, functional imaging technologies, such as PET, can be applied to determine biological information that can be used for the combined-modality radiotherapy protocol for each specific patient. Regardless, not only imaging methods but also proteomics and gene expression methods will facilitate BNCT becoming a modality of personalized medicine. This work provides an overview of the fundamental principles, recent advances, and future directions of BNCT as cell-targeted cancer therapy for personalized radiation treatment.
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Hou Z, Geng C, Tang X, Tian F, Zhao S, Qi J, Shu D, Gong C. Boron concentration prediction from Compton camera image for boron neutron capture therapy based on generative adversarial network. Appl Radiat Isot 2022; 186:110302. [DOI: 10.1016/j.apradiso.2022.110302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/16/2022] [Accepted: 05/17/2022] [Indexed: 11/02/2022]
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Ciardiello A, Altierix S, Ballarini F, Bocci V, Bortolussi S, Cansolino L, Carlotti D, Ciocca M, Faccini R, Facoetti A, Ferrari C, Ficcadenti L, Furfaro E, Giagu S, Iacoangeli F, Macioce G, Mancini-Terracciano C, Messina A, Milazzo L, Pacifico S, Piccolella S, Postuma I, Rotili D, Vercesi V, Voena C, Vulcano F, Capuani S. Multimodal evaluation of 19F-BPA internalization in pancreatic cancer cells for boron capture and proton therapy potential applications. Phys Med 2022; 94:75-84. [PMID: 34999515 DOI: 10.1016/j.ejmp.2021.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/12/2021] [Accepted: 12/19/2021] [Indexed: 10/19/2022] Open
Abstract
PURPOSE One of the obstacles to the application of Boron Neutron Capture Therapy (BNCT) and Proton Boron Fusion Therapy (PBFT) concerns the measurement of borated carriers' biodistribution. The objective of the present study was to evaluate the in vitro internalization of the 19F-labelled p-boronophenylalanine (19F-BPA) in the human cancer pancreatic cell line (PANC-1) for the potential application of BNCT and PBFT in pancreatic cancer. The 19F-BPA carrier has the advantage that its bio-distribution may be monitored in vivo using 19F-Nuclear Magnetic Resonance (19F NMR). MATERIALS AND METHODS The 19F-BPA internalization in PANC-1 cells was evaluated using three independent techniques on cellular samples left in contact with growing medium enriched with 13.6 mM 19F-BPA corresponding to a 11B concentration of 120 ppm: neutron autoradiography, which quantifies boron; liquid chromatography hyphenated to tandem mass spectrometry and UV-Diode Array Detection (UV-DAD), which quantifies 19F-BPA molecule; and 19F NMR spectroscopy, which detects fluorine nuclei. RESULTS Our studies suggested that 19F-BPA is internalized by PANC-1 cells. The three methods provided consistent results of about 50% internalization fraction at 120 ppm of 11B. Small variations (less than 15%) in internalization fraction are mainly dependent on the proliferation state of the cells. CONCLUSIONS The ability of 19F NMR spectroscopy to study 19F-BPA internalization was validated by well-established independent techniques. The multimodal approach we used suggests 19F-BPA as a promising BNCT/PBFT carrier for the treatment of pancreatic cancer. Since the quantification is performed at doses useful for BNCT/PBFT, 19F NMR can be envisaged to monitor 19F-BPA bio-distribution during the therapy.
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Affiliation(s)
- Andrea Ciardiello
- Sapienza University, Physics Department, pl.e Aldo Moro 2, 00185 Rome, Italy; INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy
| | - Saverio Altierix
- Pavia University, Physics Department, via A. Bassi 6, 27100 Pavia, Italy; INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy
| | - Francesca Ballarini
- Pavia University, Physics Department, via A. Bassi 6, 27100 Pavia, Italy; INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy
| | - Valerio Bocci
- INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy
| | - Silva Bortolussi
- Pavia University, Physics Department, via A. Bassi 6, 27100 Pavia, Italy; INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy
| | - Laura Cansolino
- INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy; Pavia University, Laboratory of Experimental Surgery, Clinical, Surgical, Diagnostic, Pediatric Science Department, via Ferrata, 27100 Pavia, Italy
| | - Daniele Carlotti
- INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy; Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Mario Ciocca
- INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy; National Center of Oncological Hadrontherapy, CNAO, via Campeggi 53, 27100 Pavia, Italy
| | - Riccardo Faccini
- Sapienza University, Physics Department, pl.e Aldo Moro 2, 00185 Rome, Italy; INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy
| | - Angelica Facoetti
- INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy; National Center of Oncological Hadrontherapy, CNAO, via Campeggi 53, 27100 Pavia, Italy
| | - Cinzia Ferrari
- INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy; Pavia University, Laboratory of Experimental Surgery, Clinical, Surgical, Diagnostic, Pediatric Science Department, via Ferrata, 27100 Pavia, Italy
| | | | - Emiliano Furfaro
- Sapienza University, Physics Department, pl.e Aldo Moro 2, 00185 Rome, Italy
| | - Stefano Giagu
- Sapienza University, Physics Department, pl.e Aldo Moro 2, 00185 Rome, Italy; INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy
| | | | - Giampiero Macioce
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Carlo Mancini-Terracciano
- Sapienza University, Physics Department, pl.e Aldo Moro 2, 00185 Rome, Italy; INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy
| | - Andrea Messina
- Sapienza University, Physics Department, pl.e Aldo Moro 2, 00185 Rome, Italy; INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy
| | - Luisa Milazzo
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Severina Pacifico
- University of Campania "Luigi Vanvitelli", Environmental, Biological and Pharmaceutical Sciences and Technologies Department, Via Vivaldi 43, 81100 Caserta, Italy; INFN, Sezione di Napoli, Strada Comunale Cinthia, 80126 Napoli, (Italy)
| | - Simona Piccolella
- University of Campania "Luigi Vanvitelli", Environmental, Biological and Pharmaceutical Sciences and Technologies Department, Via Vivaldi 43, 81100 Caserta, Italy; INFN, Sezione di Napoli, Strada Comunale Cinthia, 80126 Napoli, (Italy)
| | - Ian Postuma
- INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy
| | - Dante Rotili
- Sapienza University, Department of Chemistry and Technologies of Drugs, P.le A. Moro 2, 00185 Rome, Italy
| | | | - Cecilia Voena
- INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy.
| | - Francesca Vulcano
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Silvia Capuani
- INFN, Sezione di Roma, pl.e Aldo Moro 2, 00185 Rome, Italy; CNR ISC c/o Sapienza University Physics Department, P.le A.Moro 2, 00185 Rome, Italy; Centro Fermi - Museo Storico Della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome 00184, Italy
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11
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Theranostics in Boron Neutron Capture Therapy. Life (Basel) 2021; 11:life11040330. [PMID: 33920126 PMCID: PMC8070338 DOI: 10.3390/life11040330] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 12/15/2022] Open
Abstract
Boron neutron capture therapy (BNCT) has the potential to specifically destroy tumor cells without damaging the tissues infiltrated by the tumor. BNCT is a binary treatment method based on the combination of two agents that have no effect when applied individually: 10B and thermal neutrons. Exclusively, the combination of both produces an effect, whose extent depends on the amount of 10B in the tumor but also on the organs at risk. It is not yet possible to determine the 10B concentration in a specific tissue using non-invasive methods. At present, it is only possible to measure the 10B concentration in blood and to estimate the boron concentration in tissues based on the assumption that there is a fixed uptake of 10B from the blood into tissues. On this imprecise assumption, BNCT can hardly be developed further. A therapeutic approach, combining the boron carrier for therapeutic purposes with an imaging tool, might allow us to determine the 10B concentration in a specific tissue using a non-invasive method. This review provides an overview of the current clinical protocols and preclinical experiments and results on how innovative drug development for boron delivery systems can also incorporate concurrent imaging. The last section focuses on the importance of proteomics for further optimization of BNCT, a highly precise and personalized therapeutic approach.
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12
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Feiner IVJ, Pulagam KR, Uribe KB, Passannante R, Simó C, Zamacola K, Gómez-Vallejo V, Herrero-Álvarez N, Cossío U, Baz Z, Caffarel MM, Lawrie CH, Vugts DJ, Rejc L, Llop J. Pre-targeting with ultra-small nanoparticles: boron carbon dots as drug candidates for boron neutron capture therapy. J Mater Chem B 2021; 9:410-420. [PMID: 33367431 DOI: 10.1039/d0tb01880e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Boron neutron capture therapy (BNCT) is a promising cancer treatment exploiting the neutron capture capacity and subsequent fission reaction of boron-10. The emergence of nanotechnology has encouraged the development of nanocarriers capable of accumulating boron atoms preferentially in tumour cells. However, a long circulation time, required for high tumour accumulation, is usually accompanied by accumulation of the nanosystem in organs such as the liver and the spleen, which may cause off-target side effects. This could be overcome by using small-sized boron carriers via a pre-targeting strategy. Here, we report the preparation, characterisation and in vivo evaluation of tetrazine-functionalised boron-rich carbon dots, which show very fast clearance and low tumour uptake after intravenous administration in a mouse HER2 (human epidermal growth factor receptor 2)-positive tumour model. Enhanced tumour accumulation was achieved when using a pretargeting approach, which was accomplished by a highly selective biorthogonal reaction at the tumour site with trans-cyclooctene-functionalised Trastuzumab.
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Affiliation(s)
- Irene V J Feiner
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Krishna R Pulagam
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Kepa B Uribe
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Rossana Passannante
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Cristina Simó
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Kepa Zamacola
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Vanessa Gómez-Vallejo
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | | | - Unai Cossío
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - Zuriñe Baz
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain.
| | - María M Caffarel
- Biodonostia Health Research Institute, San Sebastian, Spain and IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Charles H Lawrie
- Biodonostia Health Research Institute, San Sebastian, Spain and IKERBASQUE, Basque Foundation for Science, Bilbao, Spain and Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Danielle J Vugts
- Amsterdam UMC, Vrije Universiteit Amsterdam, Dept. Radiology & Nuclear Medicine, The Netherlands
| | - Luka Rejc
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain. and University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Jordi Llop
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), San Sebastian, Spain. and Centro de Investigación Biomédica en Red, Enfermedades Respiratorias - CIBERES, Madrid, Spain
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13
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Quantitative autoradiography in boron neutron capture therapy considering the particle ranges in the samples. Phys Med 2021; 82:306-320. [PMID: 33721790 DOI: 10.1016/j.ejmp.2021.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/13/2021] [Accepted: 02/19/2021] [Indexed: 11/21/2022] Open
Abstract
PURPOSE Boron neutron capture therapy is a cellular-scale particle therapy exploiting boron neutron capture reactions in boron compounds distributed in tumour cells. Its therapeutic effect depends on both the accumulation of boron in tumour cells and the neutron fluence. Autoradiography is used to visualise the micro-distribution of boron compounds. METHODS Here, we present an equation for the relationship between boron concentration and pit density on the solid-state nuclear track detector, taking into consideration the particle ranges in the samples. This equation is validated using liver-tissue sections and boron standard solutions. Moreover, we present a simple co-localisation system for pit and tissue-section images that requires no special equipment. RESULTS The equation reproduces the experimentally observed trends between boron concentration and pit density. This equation provides a theoretical explanation for the widely used calibration curve between pit density and boron concentration; it also provides a method to correct for differences of tissue-section thickness in quantitative autoradiography. CONCLUSIONS Using the equation together with this co-localisation system could improve micro-scale quantitative estimation in tissue sections.
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14
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Asawa Y, Arsent’eva AV, Anufriev SA, Anisimov AA, Suponitsky KY, Filippov OA, Nakamura H, Sivaev IB. Synthesis of Bis(Carboranyl)amides 1,1'-μ-(CH 2NH(O)C(CH 2) n-1,2-C 2B 10H 11) 2 ( n = 0, 1) and Attempt of Synthesis of Gadolinium Bis(Dicarbollide). Molecules 2021; 26:1321. [PMID: 33801248 PMCID: PMC7958119 DOI: 10.3390/molecules26051321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 11/17/2022] Open
Abstract
Bis(carboranyl)amides 1,1'-μ-(CH2NH(O)C(CH2)n-1,2-C2B10H11)2 (n = 0, 1) were prepared by the reactions of the corresponding carboranyl acyl chlorides with ethylenediamine. Crystal molecular structure of 1,1'-μ-(CH2NH(O)C-1,2-C2B10H11)2 was determined by single crystal X-ray diffraction. Treatment of bis(carboranyl)amides 1,1'-μ-(CH2NH(O)C(CH2)n-1,2-C2B10H11)2 with ammonium or cesium fluoride results in partial deboronation of the ortho-carborane cages to the nido-carborane ones with formation of [7,7'(8')-μ-(CH2NH(O)C(CH2)n-7,8-C2B9H11)2]2-. The attempted reaction of [7,7'(8')-μ-(CH2NH(O)CCH2-7,8-C2B9H11)2]2- with GdCl3 in 1,2-dimethoxy- ethane did not give the expected metallacarborane. The stability of different conformations of Gd-containing metallacarboranes has been estimated by quantum-chemical calculations using [3,3-μ-DME-3,3'-Gd(1,2-C2B9H11)2]- as a model. It was found that in the most stable conformation the CH groups of the dicarbollide ligands are in anti,anti-orientation with respect to the DME ligand, while any rotation of the dicarbollide ligand reduces the stability of the system. This makes it possible to rationalize the design of carborane ligands for the synthesis of gadolinium metallacarboranes on their base.
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Affiliation(s)
- Yasunobu Asawa
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan;
| | - Aleksandra V. Arsent’eva
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia; (A.V.A.); (S.A.A.); (A.A.A.); (K.Y.S.); (O.A.F.)
- Faculty of Chemical Pharmaceutical Technologies and Biomedical Products, D.I. Mendeleev Russian Chemical Technological University, 9 Miusskaya Sq., 125047 Moscow, Russia
| | - Sergey A. Anufriev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia; (A.V.A.); (S.A.A.); (A.A.A.); (K.Y.S.); (O.A.F.)
| | - Alexei A. Anisimov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia; (A.V.A.); (S.A.A.); (A.A.A.); (K.Y.S.); (O.A.F.)
- Higher Chemical College at the Russian Academy of Sciences, D.I. Mendeleev Russian Chemical Technological University, 9 Miusskaya Sq., 125047 Moscow, Russia
| | - Kyrill Yu. Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia; (A.V.A.); (S.A.A.); (A.A.A.); (K.Y.S.); (O.A.F.)
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky Prosp., 119991 Moscow, Russia
| | - Oleg A. Filippov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia; (A.V.A.); (S.A.A.); (A.A.A.); (K.Y.S.); (O.A.F.)
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho- Maklay Str., 117997 Moscow, Russia
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan;
| | - Igor B. Sivaev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia; (A.V.A.); (S.A.A.); (A.A.A.); (K.Y.S.); (O.A.F.)
- Basic Department of Chemistry of Innovative Materials and Technologies, G.V. Plekhanov Russian University of Economics, 36 Stremyannyi Line, 117997 Moscow, Russia
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15
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Patera V, Prezado Y, Azaiez F, Battistoni G, Bettoni D, Brandenburg S, Bugay A, Cuttone G, Dauvergne D, de France G, Graeff C, Haberer T, Inaniwa T, Incerti S, Nasonova E, Navin A, Pullia M, Rossi S, Vandevoorde C, Durante M. Biomedical Research Programs at Present and Future High-Energy Particle Accelerators. FRONTIERS IN PHYSICS 2020; 8:00380. [PMID: 33224942 PMCID: PMC7116397 DOI: 10.3389/fphy.2020.00380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Biomedical applications at high-energy particle accelerators have always been an important section of the applied nuclear physics research. Several new facilities are now under constructions or undergoing major upgrades. While the main goal of these facilities is often basic research in nuclear physics, they acknowledge the importance of including biomedical research programs and of interacting with other medical accelerator facilities providing patient treatments. To harmonize the programs, avoid duplications, and foster collaboration and synergism, the International Biophysics Collaboration is providing a platform to several accelerator centers with interest in biomedical research. In this paper, we summarize the programs of various facilities in the running, upgrade, or construction phase.
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Affiliation(s)
- Vincenzo Patera
- Dipartimento di Scienze di Base e Applicate per l’Ingegneria, University “La Sapienza”, Rome, Italy
| | | | | | | | | | | | | | | | - Denis Dauvergne
- Université Grenoble-Alpes, CNRS/IN2P3, UMR5821, LPSC, GDR MI2B, LabEx PRIMES, Grenoble, France
| | | | - Christian Graeff
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | | | | | - Sebastien Incerti
- Université de Bordeaux, CNRS/IN2P3, UMR5797, Centre d’Études Nucléaires de Bordeaux Gradignan, Gradignan, France
| | | | | | | | | | | | - Marco Durante
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Institut für Festkörperphysik, Technische Universität Darmstadt, Darmstadt, Germany
- Correspondence: Marco Durante,
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16
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Colocalization of tracks from boron neutron capture reactions and images of isolated cells. Appl Radiat Isot 2020; 167:109353. [PMID: 33039761 DOI: 10.1016/j.apradiso.2020.109353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 07/07/2020] [Accepted: 07/21/2020] [Indexed: 01/31/2023]
Abstract
In Boron Neutron Capture Therapy, the boronated drug plays a leading role in delivering a lethal dose to the tumour. The effectiveness depends on the boron macroscopic concentration and on its distribution at sub-cellular level. This work shows a way to colocalize alpha particles and lithium ions tracks with cells. A neutron autoradiography technique is used, which combines images of cells with images of tracks produced in a solid-state nuclear track detector.
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17
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Ikebe Y, Oshima M, Bamba S, Asai M, Tsukada K, Sato TK, Toyoshima A, Bi C, Seto H, Amano H, Kumada H, Morimoto T. Study of charged particle activation analysis (II): Determination of boron concentration in human blood samples. Appl Radiat Isot 2020; 164:109106. [PMID: 32819495 DOI: 10.1016/j.apradiso.2020.109106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/05/2019] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
Abstract
Boron Neutron Capture Therapy (BNCT) is a radiotherapy for the treatment of intractable cancer. In BNCT precise determination of 10B concentration in whole blood sample before neutron irradiation of the patient, as well as accurate neutron dosimetry, is crucial for control of the neutron irradiation time. For this purpose ICP-AES and neutron induced prompt γ-ray analysis are generally used. In Ibaraki Neutron Medical Research Center (iNMRC), an intense proton beam will be accelerated up to 8 MeV, which can also be used for Charged Particle Activation Analysis (CPAA). Thus, in this study, we apply the CPAA utilizing the proton beam to non-destructive and accurate determination of 10B concentration in whole blood sample. A CPAA experiment is performed by utilizing an 8 MeV proton beam from the tandem accelerator of Nuclear Science Research Institute in Japan Atomic Energy Agency. The 478 keV γ-ray of 7Be produced by the 10B(p, α)7Be reaction is used to quantify the 10B in human blood. The 478 keV γ-ray intensity is normalized by the intensities of the 847 keV and 1238 keV γ-rays of 56Co originating from Fe in blood. The normalization methods were found to be linear in the range of 3.27 μg 10B/g to 322 μg 10B/g with correlation coefficients of better than 0.9999.
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Affiliation(s)
- Y Ikebe
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan.
| | - M Oshima
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan
| | - S Bamba
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan
| | - M Asai
- Japan Atomic Energy Agency, Shirakata 2-4, Tokai, Naka, Ibaraki, 319-1195, Japan
| | - K Tsukada
- Japan Atomic Energy Agency, Shirakata 2-4, Tokai, Naka, Ibaraki, 319-1195, Japan
| | - T K Sato
- Japan Atomic Energy Agency, Shirakata 2-4, Tokai, Naka, Ibaraki, 319-1195, Japan
| | - A Toyoshima
- Japan Atomic Energy Agency, Shirakata 2-4, Tokai, Naka, Ibaraki, 319-1195, Japan
| | - C Bi
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan
| | - H Seto
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan
| | - H Amano
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan
| | - H Kumada
- University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8575, Japan
| | - T Morimoto
- Japan Chemical Analysis Center, Sanno 295-3, Inage, Chiba, 263-0002, Japan
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18
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Espain MS, Dattoli Viegas AM, Trivillin VA, Saint Martin G, Thorp SI, Curotto P, Pozzi ECC, González SJ, Portu AM. Neutron autoradiography to study the microdistribution of boron in the lung. Appl Radiat Isot 2020; 165:109331. [PMID: 32777741 DOI: 10.1016/j.apradiso.2020.109331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 06/30/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022]
Abstract
In Argentina, a multi-institutional project has been established to assess the feasibility of applying BNCT ex-situ to the treatment of patients with multiple metastases in both lungs. Within this context, this work aims at applying the neutron autoradiography technique to study boron microdistribution in the lung. A comprehensive analysis of the different aspects for the generation of autoradiographic images of both normal and metastatic BDIX rat lungs was achieved. Histology, boron uniformity, optimal tissue thickness and water content in tissue were explored for the two types of samples. A qualitative and a quantitative analysis were performed. No heterogeneities in uptake were observed in normal lung. Conversely, samples with metastasis showed preferential boron uptake in the tumour areas with respect to surrounding tissue. Surrounding tissue would present a slightly higher uptake of boron than the normal lung. Quantitative results of boron concentration values and ratios determined by neutron autoradiography were obtained. In order to contribute to BNCT dosimetry, further analysis increasing the number of samples is warranted.
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Affiliation(s)
- María Sol Espain
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón I, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina; Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Ana Mailén Dattoli Viegas
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón I, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina; Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Verónica Andrea Trivillin
- Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2270, C1425FQD, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gisela Saint Martin
- Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Silvia Inés Thorp
- Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Paula Curotto
- Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | | | - Sara Josefina González
- Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2270, C1425FQD, Ciudad Autónoma de Buenos Aires, Argentina
| | - Agustina Mariana Portu
- Comisión Nacional de Energía Atómica (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2270, C1425FQD, Ciudad Autónoma de Buenos Aires, Argentina.
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Zhang Z, Yong Z, Jin C, Song Z, Zhu S, Liu T, Chen Y, Chong Y, Chen X, Zhou Y. Biodistribution studies of boronophenylalanine in different types of skin melanoma. Appl Radiat Isot 2020; 163:109215. [PMID: 32561053 DOI: 10.1016/j.apradiso.2020.109215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 03/11/2020] [Accepted: 05/01/2020] [Indexed: 10/24/2022]
Abstract
A study of the 10B-enriched Boronophenylalanine-fructose complex(10BPA-F) infusion procedure in potential BNCT patients, including three skin melanomas of extremities, was performed. 10B concentration in tumor(T), blood(B), skin(S) were measured to determine tumor/blood(T/B) and skin/blood(S/B) ratios. T/B ratio for three melanoma patients was in the range 1.48-3.82(average 2.56 ± 0.69). S/B ratio was in the range 0.81-1.99(average 1.29 ± 0.35). Results showed that T/B ratio of nodular metastasis melanoma was higher than superficial spreading melanoma. 10B concentration in skin was higher than blood, which was helpful to avoid over-dose in normal skin.
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Affiliation(s)
- Zizhu Zhang
- Beijing Nuclear Industry Hospital(BNIH), China; Beijing Capture Technology Co. Ltd (BCTC), China.
| | - Zhong Yong
- The Third Xiangya Hospital of Central South University (The Third Xiangya Hospital), China
| | - Congjun Jin
- Beijing Nuclear Industry Hospital(BNIH), China
| | - Zewen Song
- The Third Xiangya Hospital of Central South University (The Third Xiangya Hospital), China
| | - Shaihong Zhu
- The Third Xiangya Hospital of Central South University (The Third Xiangya Hospital), China
| | - Tong Liu
- Beijing Capture Technology Co. Ltd (BCTC), China
| | - Yang Chen
- Beijing Nuclear Industry Hospital(BNIH), China
| | - Yizheng Chong
- China Zhongyuan Engineering Corporation(CZEC), China
| | - Xinru Chen
- China Zhongyuan Engineering Corporation(CZEC), China
| | - Yongmao Zhou
- China Zhongyuan Engineering Corporation(CZEC), China
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20
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Tsygankova AR, Kanygin VV, Kasatova AI, Zav’yalov EL, Gusel’nikova TY, Kichigin AI, Mukhamadiyarov RA. Determination of boron by inductively coupled plasma atomic emission spectroscopy. Biodistribution of 10B in tumor-bearing mice. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2805-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Gadan MA, Lloyd R, Saint Martin G, Olivera MS, Policastro L, Portu AM. Neutron Autoradiography Combined With UV-C Sensitization: Toward the Intracellular Localization of Boron. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2019; 25:1331-1340. [PMID: 31648656 DOI: 10.1017/s1431927619015058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Our group has reported the imprint formation of biological material on polycarbonate nuclear track detectors by UV-C exposure, which is used as an approach to simultaneously visualize cell imprints and nuclear tracks coming from the boron neutron capture reaction. Considering that the cell nucleus has a higher UV-C absorption than the cytoplasm and that hematoxylin preferentially stains the nucleus, we proposed to enhance the contrast between these two main cell structures by hematoxylin staining before UV-C sensitization. In this study, several experiments were performed in order to optimize UV-C exposure parameters and chemical etching conditions for cell imprint formation using the SK-BR-3 breast cancer cell line. The proposed method improves significantly the resolution of the cell imprints. It allows clear differentiation of the nucleus from the rest of the cell, together with nuclear tracks pits. Moreover, it reduces considerably the UV-C exposure time, an important experimental issue. The proposed methodology can be applied to study the boron distribution independently from the chosen cell line and/or boron compounds.
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Affiliation(s)
- Mario A Gadan
- Department of Instrumentation and Dosimetry, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- Institute of Nanoscience and Nanotechnology (INN), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Rodrigo Lloyd
- Institute of Nanoscience and Nanotechnology (INN), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- Laboratory of Nanomedicine, CNEA, Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- National Agency for Scientific and Technological Promotion (ANPCyT), Godoy Cruz 2270, C1425FQD, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gisela Saint Martin
- Department of Radiobiology, CNEA, Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - María S Olivera
- Department of Boron Neutron Capture Therapy, CNEA, Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Lucía Policastro
- Institute of Nanoscience and Nanotechnology (INN), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- Laboratory of Nanomedicine, CNEA, Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), Godoy Cruz 2270, C1425FQD, Ciudad Autónoma de Buenos Aires, Argentina
| | - Agustina M Portu
- Institute of Nanoscience and Nanotechnology (INN), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- Department of Radiobiology, CNEA, Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
- National Scientific and Technical Research Council (CONICET), Godoy Cruz 2270, C1425FQD, Ciudad Autónoma de Buenos Aires, Argentina
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22
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Aldossari S, McMahon G, Lockyer NP, Moore KL. Microdistribution and quantification of the boron neutron capture therapy drug BPA in primary cell cultures of human glioblastoma tumour by NanoSIMS. Analyst 2019; 144:6214-6224. [PMID: 31528921 DOI: 10.1039/c9an01336a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ability of secondary ion mass spectrometry (SIMS) to provide high sensitivity imaging of elements and small-medium mass molecules in biological tissues and cells, makes it a very powerful tool for drug distribution studies. Here we report on the application of a high-resolution dynamic SIMS instrument for the quantification and localisation of therapeutic levels of the BNCT agent l-para-(dihydroxyboryl)-phenylalanine (BPA) in primary cell cultures from human patients exhibiting glioblastoma multiform tumours. Boron uptake and distribution was determined quantitatively as a function of cell-sampling location and different treatment regimes. Importantly, BPA was found to accumulate in cancer cells invading the 'brain around tumour' tissue in addition to the main tumour site. Pre-treatment of samples with l-tyrosine was found not to increase the uptake of BPA, nor change the intracellular drug distribution. In cultured cells from the tumour core and brain around tumour, with and without l-tyrosine pre-treatment, normalised boron-related signals were higher from cell nuclei than from cytoplasm. An efflux treatment was found to reduce BPA levels, but at a rate slower than the original uptake, and did not affect the intracellular drug distribution. To the best of our knowledge, these data represent the first published study of BPA uptake and l-amino acid pre-treatment in cultured primary human cells using dynamic SIMS, and the most detailed, subcellular distribution study of a BNCT agent in any cellular system.
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Affiliation(s)
- Samar Aldossari
- Department of Chemistry, University of Manchester, Oxford Rd, Manchester M13 9PL, UK.
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Li J, Shi Y, Zhang Z, Liu H, Lang L, Liu T, Chen X, Liu Z. A Metabolically Stable Boron-Derived Tyrosine Serves as a Theranostic Agent for Positron Emission Tomography Guided Boron Neutron Capture Therapy. Bioconjug Chem 2019; 30:2870-2878. [PMID: 31593447 DOI: 10.1021/acs.bioconjchem.9b00578] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Boronophenylalanine (BPA) is the dominant boron delivery agent for boron neutron capture therapy (BNCT), and [18F]FBPA has been developed to assist the treatment planning for BPA-BNCT. However, the clinical application of BNCT has been limited by its inadequate tumor specificity due to the metabolic instability. In addition, the distinctive molecular structures between [18F]FBPA and BPA can be of concern as [18F]FBPA cannot quantitate boron concentration of BPA in a real-time manner. In this study, a metabolically stable boron-derived tyrosine (denoted as fluoroboronotyrosine, FBY) was developed as a theranostic agent for both boron delivery and cancer diagnosis, leading to PET imaging-guided BNCT of cancer. [18F]FBY was synthesized in high radiochemical yield (50%) and high radiochemical purity (98%). FBY showed high similarity with natural tyrosine. As shown in in vitro assays, the uptake of FBY in murine melanoma B16-F10 cells was L-type amino acid transporter (LAT-1) dependent and reached up to 128 μg/106 cells. FBY displayed high stability in PBS solution. [18F]FBY PET showed up to 6 %ID/g in B16-F10 tumor and notably low normal tissue uptake (tumor/muscle = 3.16 ± 0.48; tumor/blood = 3.13 ± 0.50; tumor/brain = 14.25 ± 1.54). Moreover, administration of [18F]FBY tracer along with a therapeutic dose of FBY showed high accumulation in B16-F10 tumor and low normal tissue uptake. Correlation between PET-image and boron biodistribution was established, indicating the possibility of estimating boron concentration via a noninvasive approach. At last, with thermal neutron irradiation, B16-F10 tumor-bearing mice injected with FBY showed significantly prolonged median survival without exhibiting obvious systemic toxicity. In conclusion, FBY holds great potential as an efficient theranostic agent for imaging-guided BNCT by offering a possible solution of measuring local boron concentration through PET imaging.
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Affiliation(s)
- Jiyuan Li
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Yaxin Shi
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Zizhu Zhang
- Beijing Capture Tech Co., Ltd. , Beijing 102413 , China
| | - Hui Liu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Lixin Lang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN) , National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda , Maryland 20892 , United States
| | - Tong Liu
- Beijing Capture Tech Co., Ltd. , Beijing 102413 , China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN) , National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda , Maryland 20892 , United States
| | - Zhibo Liu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China.,Peking University-Tsinghua University Center for Life Sciences , Beijing 100871 , China
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24
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Zhang X, Geng C, Tang X, Bortolussi S, Shu D, Gong C, Han Y, Wu S. Assessment of long-term risks of secondary cancer in paediatric patients with brain tumours after boron neutron capture therapy. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2019; 39:838-853. [PMID: 31195386 DOI: 10.1088/1361-6498/ab29a3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study firstly explored the risks of secondary cancer in healthy organs of Chinese paediatric patients with brain tumours after boron neutron capture therapy (BNCT). Three neutron beam irradiation geometries (i.e. right lateral, top to bottom, posterior to anterior) were adopted in treating patients with brain tumours under the clinical environment of BNCT. The concerned organs in this study were those with high cancer morbidity in China (e.g. lung, liver and stomach). The equivalent doses for these organs were calculated using Monte Carlo and anthropomorphic paediatric phantoms with Chinese physiological features. The risk of secondary cancer, characterised by the lifetime attributable risk (LAR) factor given in the BEIR VII report, was compared among the three irradiation geometries. The results showed that the LAR was lower with the PA irradiation geometry than with the two other irradiation geometries when the 2 cm diameter tumour was at a depth of 6 cm on the right side of the brain. Under the PA irradiation geometry, the LAR in the organs increased with increasing tumour volume and depth because of the long irradiation time. As the patients aged from 10-15 years old, the LAR decreased, which was related to the increased patient height and shortened life expectancy. Female patients had a relatively higher risk of secondary cancer than male patients in this study, which could be due to the thinner body thickness and the weaker protective effect on the internal organs of the female patients. In conclusion, the risks of secondary cancer in organs were related to irradiation geometries, gender, and age, indicating that the risk of secondary cancer is a personalised parameter that needs to be evaluated before administering BNCT, especially in patients with large or deep tumours.
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Affiliation(s)
- Xinxin Zhang
- Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China
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25
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Shu D, Tang X, Geng C, Zhang X, Gong C, Shao W, Liu Y. Novel method exploration of monitoring neutron beam using Cherenkov photons in BNCT. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2018.11.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Ishiwata K. 4-Borono-2- 18F-fluoro-L-phenylalanine PET for boron neutron capture therapy-oriented diagnosis: overview of a quarter century of research. Ann Nucl Med 2019; 33:223-236. [PMID: 30820862 PMCID: PMC6450856 DOI: 10.1007/s12149-019-01347-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 02/17/2019] [Indexed: 11/29/2022]
Abstract
4-10B-Borono-2-18F-fluoro-L-phenylalanine (18F-FBPA) was developed for monitoring the pharmacokinetics of 4-10B-borono-L-phenylalanine (10B-BPA) used in boron neutron capture therapy (BNCT) with positron emission tomography (PET). The tumor-imaging potential of 18F-FBPA was demonstrated in various animal models. Accumulation of 18F-FBPA was higher in melanomas than in non-melanoma tumors in animal models and cell cultures. 18F-FBPA was incorporated into tumors mediated mainly by L-type amino acid transporters in in vitro and in vivo models. Tumoral distribution of 18F-FBPA was primarily related to the activity of DNA synthesis. 18F-FBPA is metabolically stable but is incorporated into melanogenesis non-enzymatically. These in vitro and in vivo characteristics of 18F-FBPA corresponded well to those of 10B-BPA. Nuclear magnetic resonance and other studies using non-radioactive 19F-10/11B-FBPA also contributed to characterization. The validity and reliability of 18/19F-FBPA as an in vivo probe of 10B-BPA were confirmed by comparison of the pharmacokinetics of 18F-FBPA and 10B-BPA and direct measurement of both 18F and 10B in tumors with various doses of both probes administered by different routes and methods. Clinically, based on the kinetic parameters of dynamic 18F-FBPA PET, the estimated 10B-concentrations in tumors with continuous 10B-BPA infusion were similar to those measured directly in surgical specimens. The significance of 18F-FBPA PET was verified for the estimation of 10B-concentration and planning of BNCT. Later 18F-FBPA PET has been involved in 10B-BPA BNCT of patients with intractable tumors such as malignant brain tumors, head and neck tumors, and melanoma. Usually a static PET scan is used for screening patients for BNCT, prediction of the distribution and accumulation of 10B-BPA, and evaluation of treatment after BNCT. In some clinical trials, a tumor-to-normal tissue ratio of 18F-FBPA > 2.5 was an inclusion criterion for BNCT. Apart from BNCT, 18F-FBPA was demonstrated to be a useful PET probe for tumor diagnosis in nuclear medicine: better tumor-to-normal brain contrast compared with 11C-methionine, differentiation of recurrent and radiation necrosis after radiotherapy, and melanoma-preferential uptake. Further progress in 18F-FBPA studies is expected for more elaborate evaluation of 10B-concentrations in tumors and normal tissues for successful 10B-BPA BNCT and for radiosynthesis of 18F-FBPA to enable higher 18F-activity amounts and higher molar activities.
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Affiliation(s)
- Kiichi Ishiwata
- Southern TOHOKU Drug Discovery and Cyclotron Research Center, Southern TOHOKU Research Institute for Neuroscience, 7-61-2 Yatsuyamada, Koriyama, 963-8052, Japan. .,Department of Biofunctional Imaging, Fukushima Medical University, Fukushima, Japan.
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27
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Shi Y, Li J, Zhang Z, Duan D, Zhang Z, Liu H, Liu T, Liu Z. Tracing Boron with Fluorescence and Positron Emission Tomography Imaging of Boronated Porphyrin Nanocomplex for Imaging-Guided Boron Neutron Capture Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43387-43395. [PMID: 30451482 DOI: 10.1021/acsami.8b14682] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Boron neutron capture therapy (BNCT) induces high-energy radiation within cancer cells while avoiding damage to normal cells without uptake of BNCT drugs, which is holding great promise to provide excellent control over locally invasive malignant tumors. However, lack of quantitative imaging technique to determine local boron concentration has been a great challenge for nuclear physicians to apply accurate neutron irradiation during the treatment, which is a key factor that has limited BNCT's application in clinics. To meet this challenge, this study describes coating boronated porphyrins with a biocompatible poly(lactide- co-glycolide)-monomethoxy-poly(polyethylene-glycol) (PLGA-mPEG) micelle for selective tumor accumulation and reduced toxicity comparing with the previously reported boronated porphyrin drugs. Fluorescence imaging and positron emission tomography (PET) imaging were performed, unveiling the potential imaging properties of this boronated porphyrin nanocomplex (BPN) to locate tumor region and to determine tissue-localized boron concentration which facilitates treatment planning. By studying the pharmacokinetics of BPN with Cu-64 PET imaging, the treatment plan was adjusted from single bolus injection to multiple times of injections of smaller doses. As expected, high tumor uptake of boron (125.17 ± 13.54 ppm) was achieved with an extraordinarily high tumor to normal tissue ratio: tumors to liver, muscle, fat, and blood were 3.24 ± 0.22, 61.46 ± 20.26, 31.55 ± 10.30, and 33.85 ± 5.73, respectively. At last, neutron irradiation with BPN showed almost complete tumor suppression, demonstrating that BPN holds a great potential for being an efficient boron delivery agent for imaging-guided BNCT.
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Affiliation(s)
- Yaxin Shi
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Jiyuan Li
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Zizhu Zhang
- Beijing Capture Tech Co., Ltd. , Beijing 102413 , China
| | - Dongban Duan
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Zhengchu Zhang
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Hui Liu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Tong Liu
- Beijing Capture Tech Co., Ltd. , Beijing 102413 , China
| | - Zhibo Liu
- Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
- Peking University-Tsinghua University Center for Life Sciences , Beijing 100871 , China
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28
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Reliable radiosynthesis of 4-[ 10B]borono-2-[ 18F]fluoro-L-phenylalanine with quality assurance for boron neutron capture therapy-oriented diagnosis. Ann Nucl Med 2018; 32:463-473. [PMID: 29869193 PMCID: PMC6061177 DOI: 10.1007/s12149-018-1268-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/31/2018] [Indexed: 11/18/2022]
Abstract
Objective The aim of this study was to establish a reliable and routine method for the preparation of 4-[10B]borono-2-[18F]fluoro-l-phenylalanine (l-[18F]FBPA) for boron neutron capture therapy-oriented diagnosis using positron emission tomography. Methods To produce l-[18F]FBPA by electrophilic fluorination of 4-[10B]borono-l-phenylalanine (l-BPA) with [18F]acetylhypofluorite ([18F]AcOF) via [18F]F2 derived from the 20Ne(d,α)18F nuclear reaction, several preparation parameters and characteristics of l-[18F]FBPA were investigated, including: pre-irradiation for [18F]F2 production, the carrier F2 content in the Ne target, l-BPA-to-F2 ratios, separation with high-performance liquid chromatography (HPLC) using 10 different eluents, enantiomeric purity, and residual trifluoroacetic acid used as the reaction solvent by gas chromatography-mass spectrometry. Results The activity yields and molar activities of l-[18F]FBPA (n = 38) were 1200 ± 160 MBq and 46–113 GBq/mmol, respectively, after deuteron-irradiation for 2 h. Two 5 min pre-irradiations prior to [18F]F2 production for 18F-labeling were preferable. For l-[18F]FBPA synthesis, 0.15–0.2% of carrier F2 in Ne and l-BPA-to-F2 ratios > 2 were preferable. HPLC separations with five of the 10 eluents provided injectable l-[18F]FBPA without any further formulation processing, which resulted in a synthesis time of 32 min. Among the five eluents, 1 mM phosphate-buffered saline was the eluent of choice. The l-[18F]FBPA injection was sterile and pyrogen-free, and contained very small amounts of D-enantiomer (< 0.1% of l-[18F]FBPA), l-BPA (< 1% of l-FBPA), and trifluoroacetic acid (< 0.5 ppm). Conclusions l-[18F]FBPA injection was reliably prepared by the electrophilic fluorination of l-BPA with [18F]AcOF followed by HPLC separation with 1 mM phosphate-buffered saline.
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29
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Analysis of therapeutic effectiveness attained through generation of three alpha particles in proton-boron fusion reaction based on Monte Carlo simulation code. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5813-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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30
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Zhang X, Wei W, Fu C, Yuan X, An H, Deng Y, Fang Y, Gao J, Ge X, Guo B, He C, Hu P, Hua N, Jiang W, Li L, Li M, Li Y, Li Y, Liao G, Liu F, Liu L, Wang H, Yang P, Yang S, Yang T, Zhang G, Zhang Y, Zhu B, Xi X, Zhu J, Sheng Z, Zhang J. Demonstration of laser-produced neutron diagnostic by radiative capture gamma-rays. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:023505. [PMID: 29495800 DOI: 10.1063/1.5019228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a new scenario of the time-of-flight technique in which fast neutrons and delayed gamma-ray signals were both recorded in a millisecond time window in harsh environments induced by high-intensity lasers. The delayed gamma signals, arriving far later than the original fast neutron and often being ignored previously, were identified to be the results of radiative captures of thermalized neutrons. The linear correlation between the gamma photon number and the fast neutron yield shows that these delayed gamma events can be employed for neutron diagnosis. This method can reduce the detecting efficiency dropping problem caused by prompt high-flux gamma radiation and provides a new way for neutron diagnosing in high-intensity laser-target interaction experiments.
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Affiliation(s)
- Xiaopeng Zhang
- INPAC and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenqing Wei
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Changbo Fu
- INPAC and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaohui Yuan
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Honghai An
- Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China
| | - Yanqing Deng
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuan Fang
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jian Gao
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xulei Ge
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bing Guo
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - Chuangye He
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - Peng Hu
- University of Science and Technology of China, Hefei 230026, China
| | - Neng Hua
- Shanghai Institute of Optical and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Weiman Jiang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Liang Li
- INPAC and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mengting Li
- University of Science and Technology of China, Hefei 230026, China
| | - Yifei Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yutong Li
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guoqian Liao
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Feng Liu
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Longxiang Liu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Hongwei Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Pengqian Yang
- Shanghai Institute of Optical and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Su Yang
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tao Yang
- University of Science and Technology of China, Hefei 230026, China
| | - Guoqiang Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Yue Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Baoqiang Zhu
- Shanghai Institute of Optical and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Xiaofeng Xi
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
| | - Jianqiang Zhu
- Shanghai Institute of Optical and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Zhengming Sheng
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jie Zhang
- Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
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Volovetsky AB, Sukhov VS, Balalaeva IV, Dudenkova VV, Shilyagina NY, Feofanov АV, Efremenko AV, Grin MA, Mironov AF, Sivaev IB, Bregadze VI, Maslennikova AV. Pharmacokinetics of Chlorin e₆-Cobalt Bis(Dicarbollide) Conjugate in Balb/c Mice with Engrafted Carcinoma. Int J Mol Sci 2017; 18:E2556. [PMID: 29182594 PMCID: PMC5751159 DOI: 10.3390/ijms18122556] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/14/2017] [Accepted: 11/21/2017] [Indexed: 11/16/2022] Open
Abstract
The necessary precondition for efficient boron neutron capture therapy (BNCT) is control over the content of isotope 10B in the tumor and normal tissues. In the case of boron-containing porphyrins, the fluorescent part of molecule can be used for quantitative assessment of the boron content. Study Objective: We performed a study of the biodistribution of the chlorin e₆-Cobalt bis(dicarbollide) conjugate in carcinoma-bearing Balb/c mice using ex vivo fluorescence imaging, and developed a mathematical model describing boron accumulation and release based on the obtained experimental data. Materials and Methods: The study was performed on Balb/c tumor-bearing mice (CT-26 tumor model). A solution of the chlorin e₆-Cobalt bis(dicarbollide) conjugate (CCDC) was injected into the blood at a dose of 10 mg/kg of the animal's weight. Analysis of the fluorescence signal intensity was performed at several time points by spectrofluorimetry in blood and by laser scanning microscopy in muscle, liver, and tumor tissues. The boron content in the same samples was determined by mass spectroscopy with inductively coupled plasma. Results: Analysis of a linear approximation between the fluorescence intensity and boron content in the tissues demonstrated a satisfactory value of approximation reliability with a Spearman's rank correlation coefficient of r = 0.938, p < 0.01. The dynamics of the boron concentration change in various organs, calculated on the basis of the fluorescence intensity, enabled the development of a model describing the accumulation of the studied compound and its distribution in tissues. The obtained results reveal a high level of correspondence between the model and experimental data.
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Affiliation(s)
- Arthur B Volovetsky
- Department of Biophysics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarina Av., 603950 Nizhny Novgorod, Russia.
| | - Vladimir S Sukhov
- Department of Biophysics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarina Av., 603950 Nizhny Novgorod, Russia.
| | - Irina V Balalaeva
- Department of Biophysics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarina Av., 603950 Nizhny Novgorod, Russia.
| | - Varvara V Dudenkova
- Department of Biophysics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarina Av., 603950 Nizhny Novgorod, Russia.
- Department of Oncology, Nizhny Novgorod State Medical Academy, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia.
| | - Natalia Yu Shilyagina
- Department of Biophysics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarina Av., 603950 Nizhny Novgorod, Russia.
| | - Аlexey V Feofanov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya Str., 117997 Moscow, Russia.
- Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, 119992 Moscow, Russia.
| | - Anastasija V Efremenko
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya Str., 117997 Moscow, Russia.
- Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, 119992 Moscow, Russia.
| | - Mikhail A Grin
- Institute of Fine Chemical Technology, Moscow Technological University, 86 Vernadskii Av., 119571 Moscow, Russia.
| | - Andrey F Mironov
- Institute of Fine Chemical Technology, Moscow Technological University, 86 Vernadskii Av., 119571 Moscow, Russia.
| | - Igor B Sivaev
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia.
| | - Vladimir I Bregadze
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia.
| | - Anna V Maslennikova
- Department of Biophysics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarina Av., 603950 Nizhny Novgorod, Russia.
- Department of Oncology, Nizhny Novgorod State Medical Academy, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia.
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Heinzmann K, Carter LM, Lewis JS, Aboagye EO. Multiplexed imaging for diagnosis and therapy. Nat Biomed Eng 2017; 1:697-713. [PMID: 31015673 DOI: 10.1038/s41551-017-0131-8] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 08/02/2017] [Indexed: 12/12/2022]
Abstract
Complex molecular and metabolic phenotypes depict cancers as a constellation of different diseases with common themes. Precision imaging of such phenotypes requires flexible and tunable modalities capable of identifying phenotypic fingerprints by using a restricted number of parameters while ensuring sensitivity to dynamic biological regulation. Common phenotypes can be detected by in vivo imaging technologies, and effectively define the emerging standards for disease classification and patient stratification in radiology. However, for the imaging data to accurately represent a complex fingerprint, the individual imaging parameters need to be measured and analysed in relation to their wider spatial and molecular context. In this respect, targeted palettes of molecular imaging probes facilitate the detection of heterogeneity in oncogene-driven alterations and their response to treatment, and lead to the expansion of rational-design elements for the combination of imaging experiments. In this Review, we evaluate criteria for conducting multiplexed imaging, and discuss its opportunities for improving patient diagnosis and the monitoring of therapy.
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Affiliation(s)
- Kathrin Heinzmann
- Department of Surgery and Cancer, Imperial College London, Du Cane Road, London, W12 0NN, UK
| | - Lukas M Carter
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Jason S Lewis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Eric O Aboagye
- Department of Surgery and Cancer, Imperial College London, Du Cane Road, London, W12 0NN, UK.
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Nilsson EJC, Kristiansson P, Ros L, De La Rosa N, Elfman M, Hålenius U, Pallon J, Skogby H. A nuclear geochemical analysis system for boron quantification using a focused ion beam. J Radioanal Nucl Chem 2017; 311:355-364. [PMID: 28111484 PMCID: PMC5219036 DOI: 10.1007/s10967-016-5030-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Indexed: 11/24/2022]
Abstract
Ion beam analysis has for decades been used as a tool for geochemical analysis of trace elements using both X-rays (particle induced X-ray emission) and nuclear reaction analysis. With the geoanalytical setup at the Lund Ion Beam Analysis Facility, the boron content in geological samples with a spatial resolution of 1 µm is determined through nuclear reaction analysis. In the newly upgraded setup, a single detector has been replaced by a double sided silicon strip detector with 2048 segments. After optimization, boron content in geological samples as low as 1 µg g−1 can be measured.
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Affiliation(s)
- E J Charlotta Nilsson
- Division of Nuclear Physics, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
| | - Per Kristiansson
- Division of Nuclear Physics, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
| | - Linus Ros
- Division of Nuclear Physics, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
| | - Nathaly De La Rosa
- Division of Nuclear Physics, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
| | - Mikael Elfman
- Division of Nuclear Physics, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
| | - Ulf Hålenius
- Department of Geosciences, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden
| | - Jan Pallon
- Division of Nuclear Physics, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden
| | - Henrik Skogby
- Department of Geosciences, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden
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Atila A, Halici Z, Cadirci E, Karakus E, Palabiyik SS, Ay N, Bakan F, Yilmaz S. Study of the boron levels in serum after implantation of different ratios nano-hexagonal boron nitride–hydroxy apatite in rat femurs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:1082-9. [DOI: 10.1016/j.msec.2015.09.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/29/2015] [Accepted: 09/08/2015] [Indexed: 12/24/2022]
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Portu A, Postuma I, Gadan MA, Saint Martin G, Olivera MS, Altieri S, Protti N, Bortolussi S. Reprint of Inter-comparison of boron concentration measurements at INFN-University of Pavia (Italy) and CNEA (Argentina). Appl Radiat Isot 2015; 106:171-5. [DOI: 10.1016/j.apradiso.2015.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 04/29/2015] [Accepted: 07/22/2015] [Indexed: 11/28/2022]
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Inter-comparison of boron concentration measurements at INFN-University of Pavia (Italy) and CNEA (Argentina). Appl Radiat Isot 2015; 105:35-39. [PMID: 26454177 DOI: 10.1016/j.apradiso.2015.07.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 04/29/2015] [Accepted: 07/22/2015] [Indexed: 11/20/2022]
Abstract
An inter-comparison of three boron determination techniques was carried out between laboratories from INFN-University of Pavia (Italy) and CNEA (Argentina): alpha spectrometry (alpha-spect), neutron capture radiography (NCR) and quantitative autoradiography (QTA). Samples of different nature were analysed: liquid standards, liver homogenates and tissue samples from different treatment protocols. The techniques showed a good agreement in a concentration range of interest in BNCT (1-100ppm), thus demonstrating their applicability as precise methods to quantify boron and determine its distribution in tissues.
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Portu A, Rossini AE, Thorp SI, Curotto P, Pozzi ECC, Granell P, Golmar F, Cabrini RL, Martin GS. Simultaneous Observation of Cells and Nuclear Tracks from the Boron Neutron Capture Reaction by UV-C Sensitization of Polycarbonate. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2015; 21:796-804. [PMID: 26155721 DOI: 10.1017/s1431927615014348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The distribution of boron in tissue samples coming from boron neutron capture therapy protocols can be determined through the analysis of its autoradiography image on a nuclear track detector. A more precise knowledge of boron atom location on the microscopic scale can be attained by the observation of nuclear tracks superimposed on the sample image on the detector. A method to produce an "imprint" of cells cultivated on a polycarbonate detector was developed, based on the photodegradation properties of UV-C radiation on this material. Optimal conditions to generate an appropriate monolayer of Mel-J cells incubated with boronophenylalanine were found. The best images of both cells and nuclear tracks were obtained for a neutron fluence of 1013 cm-2, 6 h UV-C (254 nm) exposure, and 4 min etching time with a KOH solution. The imprint morphology was analyzed by both light and scanning electron microscopy. Similar samples, exposed to UV-A (360 nm) revealed no cellular imprinting. Etch pits were present only inside the cell imprints, indicating a preferential boron uptake (about threefold the incubation concentration). Comparative studies of boron absorption in different cell lines and in vitro evaluation of the effect of diverse boron compounds are feasible with this methodology.
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Affiliation(s)
- Agustina Portu
- 1Department of Radiobiology,National Atomic Energy Commission (CNEA),Av. General Paz 1499,B1650KNA,San Martín,Buenos Aires,Argentina
| | - Andrés Eugenio Rossini
- 3Nuclear Regulatory Authority (ARN),Libertador 8250,C1429BNP,Ciudad Autónoma de Buenos Aires,Argentina
| | - Silvia Inés Thorp
- 4Department of Instrumentation and Control,CNEA,Presbítero Juan González Aragón,B1802AYA,Ezeiza,Buenos Aires,Argentina
| | - Paula Curotto
- 5Department of Research and Production Reactors,CNEA,Presbítero Juan González Aragón,B1802AYA,Ezeiza,Buenos Aires,Argentina
| | - Emiliano César Cayetano Pozzi
- 5Department of Research and Production Reactors,CNEA,Presbítero Juan González Aragón,B1802AYA,Ezeiza,Buenos Aires,Argentina
| | - Pablo Granell
- 6Micro and Nanotechnology Centre of the Bicentennial (CNMB),National Institute of Industrial Technology (INTI),Av. Gral. Paz 5445,Ed. 42,B1650JKA,San Martín,Buenos Aires,Argentina
| | - Federico Golmar
- 2National Research Council (CONICET),Av. Rivadavia 1917,C1033AAJ,Ciudad Autónoma de Buenos Aires,Argentina
| | - Rómulo Luis Cabrini
- 1Department of Radiobiology,National Atomic Energy Commission (CNEA),Av. General Paz 1499,B1650KNA,San Martín,Buenos Aires,Argentina
| | - Gisela Saint Martin
- 1Department of Radiobiology,National Atomic Energy Commission (CNEA),Av. General Paz 1499,B1650KNA,San Martín,Buenos Aires,Argentina
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Mirfayzi SR, Kar S, Ahmed H, Krygier AG, Green A, Alejo A, Clarke R, Freeman RR, Fuchs J, Jung D, Kleinschmidt A, Morrison JT, Najmudin Z, Nakamura H, Norreys P, Oliver M, Roth M, Vassura L, Zepf M, Borghesi M. Calibration of time of flight detectors using laser-driven neutron source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:073308. [PMID: 26233373 DOI: 10.1063/1.4923088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Calibration of three scintillators (EJ232Q, BC422Q, and EJ410) in a time-of-flight arrangement using a laser drive-neutron source is presented. The three plastic scintillator detectors were calibrated with gamma insensitive bubble detector spectrometers, which were absolutely calibrated over a wide range of neutron energies ranging from sub-MeV to 20 MeV. A typical set of data obtained simultaneously by the detectors is shown, measuring the neutron spectrum emitted from a petawatt laser irradiated thin foil.
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Affiliation(s)
- S R Mirfayzi
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - S Kar
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - H Ahmed
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - A G Krygier
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - A Green
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - A Alejo
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - R Clarke
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - R R Freeman
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - J Fuchs
- LULI, Ecole Polytechnique, CNRS, Route de Saclay, 91128 Palaiseau Cedex, France
| | - D Jung
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - A Kleinschmidt
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt,Germany
| | - J T Morrison
- Propulsion Systems Directorate, Air Force Research Lab, Wright Patterson Air Force Base, Ohio 45433, USA
| | - Z Najmudin
- Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom
| | - H Nakamura
- Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom
| | - P Norreys
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - M Oliver
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - M Roth
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt,Germany
| | - L Vassura
- LULI, Ecole Polytechnique, CNRS, Route de Saclay, 91128 Palaiseau Cedex, France
| | - M Zepf
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - M Borghesi
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
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Portu A, Molinari AJ, Thorp SI, Pozzi ECC, Curotto P, Schwint AE, Saint Martin G. Neutron autoradiography to study boron compound microdistribution in an oral cancer model. Int J Radiat Biol 2015; 91:329-35. [PMID: 25510259 DOI: 10.3109/09553002.2014.995381] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE We previously reported the therapeutic efficacy of Sequential Boron Neutron Capture Therapy (Seq-BNCT), i.e., BPA (boronophenylalanine) - BNCT followed by GB-10 (decahydrodecaborate) - BNCT 1 or 2 days later, in the hamster cheek pouch oral cancer model. We have utilized the neutron autoradiography methodology to study boron microdistribution in tissue. The aim was to use this method to evaluate if the distribution of GB-10 is altered by prior application of BPA-BNCT in Sequential BNCT protocols. MATERIALS AND METHODS Extensive qualitative and quantitative autoradiography analyses were performed in the following groups: G1 (animals without boron); G2 (animals injected with BPA); G3 (animals injected with GB-10); G4 (same as G3, 24 h after BPA-BNCT); and G5 (same protocol as G4, 48 h interval). RESULTS A detailed study of boron localization in the different tissue structures of tumor, premalignant and normal tissue in the hamster cheek pouch was performed. GB-10 accumulated preferentially in non-neoplastic connective tissue, whereas for BPA neoplastic cells showed the highest boron concentration. Boron distribution was less heterogeneous for GB-10 than for BPA. In premalignant and normal tissue, GB-10 and BPA accumulated mostly in connective tissue and epithelium, respectively. CONCLUSIONS BPA-BNCT could alter boron microlocalization of GB-10 administered subsequently. Boron targeting homogeneity is essential for therapeutic success.
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Affiliation(s)
- Agustina Portu
- National Atomic Energy Commission (CNEA) , San Martin, Buenos Aires , Argentina
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Hanaoka K, Watabe T, Naka S, Kanai Y, Ikeda H, Horitsugi G, Kato H, Isohashi K, Shimosegawa E, Hatazawa J. FBPA PET in boron neutron capture therapy for cancer: prediction of (10)B concentration in the tumor and normal tissue in a rat xenograft model. EJNMMI Res 2014; 4:70. [PMID: 25621196 PMCID: PMC4293470 DOI: 10.1186/s13550-014-0070-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 11/27/2014] [Indexed: 11/10/2022] Open
Abstract
Background Boron neutron capture therapy (BNCT) is a molecular radiation treatment based on the 10B (n, α) 7Li nuclear reaction in cancer cells, in which delivery of 10B by 4-borono-phenylalanine conjugated with fructose (BPA-fr) to the cancer cells is of critical importance. The PET tracer 4-borono-2-18 F-fluoro-phenylalanine (FBPA) has been used to predict the accumulation of BPA-fr before BNCT. However, because of the difference in chemical structure between BPA-fr and FBPA and the difference in the dose administered between BPA-fr (therapeutic dose) and FBPA (tracer dose), the predictive value of FBPA PET for BPA-fr accumulation in the tumor and normal tissues is not yet clearly proven. We conducted this study to validate FBPA PET as a useful test to predict the accumulation of BPA-fr in the tumor and normal tissues before BNCT. Methods RGC-6 rat glioma cells (1.9 × 107) were implanted subcutaneously in seven male F344 rats. On day 20 after the tumor implantation, dynamic PET scan was performed on four rats after injection of FBPA for 1 h. Whole-body PET/CT was performed 1 h after intravenous injection of the FBPA solution (30.5 ± 0.7 MBq, 1.69 ± 1.21 mg/kg). PET accumulation of FBPA in the tumor tissue and various normal tissues was estimated as a percentage of the injected dose per gram (%ID/g). One hour after the PET/CT scan, BPA-fructose (167.32 ± 18.65 mg/kg) was injected intravenously, and the rats were dissected 1 h after the BPA-fr injection. The absolute concentration of 10B in the autopsied tissues and blood was measured by inductively coupled plasma optical emission spectrometry (ICP-OES). Results The highest absolute concentration of 10B determined by ICP-OES was found in the kidney (4.34 ± 0.84 %ID/g), followed by the pancreas (2.73 ± 0.63 %ID/g), and the tumor (1.44 ± 0.44 %ID/g). A significant positive correlation was found between the accumulation levels of BPA-fr and FBPA (r = 0.91, p < 0.05). Conclusions FBPA PET can reliably predict accumulation of BPA-fr in the tumor as well as normal tissues. Electronic supplementary material The online version of this article (doi:10.1186/s13550-014-0070-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kohei Hanaoka
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tadashi Watabe
- Department of Molecular Imaging in Medicine, Osaka University Graduate School of Medicine, Suita, Japan ; PET Molecular Imaging Center, Osaka University Graduate School of Medicine, Suita, Japan
| | | | - Yasukazu Kanai
- Department of Molecular Imaging in Medicine, Osaka University Graduate School of Medicine, Suita, Japan ; PET Molecular Imaging Center, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hayato Ikeda
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Genki Horitsugi
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroki Kato
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan ; PET Molecular Imaging Center, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kayako Isohashi
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan ; PET Molecular Imaging Center, Osaka University Graduate School of Medicine, Suita, Japan
| | - Eku Shimosegawa
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan ; PET Molecular Imaging Center, Osaka University Graduate School of Medicine, Suita, Japan
| | - Jun Hatazawa
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan ; PET Molecular Imaging Center, Osaka University Graduate School of Medicine, Suita, Japan ; Immunology Frontier Research Center, Osaka University, Suita, Japan
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Portu AM, Rossini AE, Gadan MA, Bernaola OA, Thorp SI, Curotto P, Pozzi ECC, Cabrini RL, Martin GS. Experimental set up for the irradiation of biological samples and nuclear track detectors with UV C. Rep Pract Oncol Radiother 2014; 21:129-34. [PMID: 26933396 DOI: 10.1016/j.rpor.2014.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/10/2014] [Accepted: 10/10/2014] [Indexed: 11/29/2022] Open
Abstract
AIM In this work we present a methodology to produce an "imprint" of cells cultivated on a polycarbonate detector by exposure of the detector to UV C radiation. BACKGROUND The distribution and concentration of (10)B atoms in tissue samples coming from BNCT (Boron Neutron Capture Therapy) protocols can be determined through the quantification and analysis of the tracks forming its autoradiography image on a nuclear track detector. The location of boron atoms in the cell structure could be known more accurately by the simultaneous observation of the nuclear tracks and the sample image on the detector. MATERIALS AND METHODS A UV C irradiator was constructed. The irradiance was measured along the lamp direction and at different distances. Melanoma cells were cultured on polycarbonate foils, incubated with borophenylalanine, irradiated with thermal neutrons and exposed to UV C radiation. The samples were chemically attacked with a KOH solution. RESULTS A uniform irradiation field was established to expose the detector foils to UV C light. Cells could be seeded on the polycarbonate surface. Both imprints from cells and nuclear tracks were obtained after chemical etching. CONCLUSIONS It is possible to yield cellular imprints in polycarbonate. The nuclear tracks were mostly present inside the cells, indicating a preferential boron uptake.
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Affiliation(s)
- Agustina Mariana Portu
- Department of Radiobiology, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina; National Research Council (CONICET), Av. Rivadavia 1917, C1033AAJ, Ciudad Autónoma de Buenos Aires, Argentina
| | - Andrés Eugenio Rossini
- Department of Radiobiology, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Mario Alberto Gadan
- Department of Instrumentation and Control, CNEA, Presbítero Juan González Aragón, B1802AYA Ezeiza, Buenos Aires, Argentina
| | - Omar Alberto Bernaola
- Department of Radiobiology, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
| | - Silvia Inés Thorp
- Department of Instrumentation and Control, CNEA, Presbítero Juan González Aragón, B1802AYA Ezeiza, Buenos Aires, Argentina
| | - Paula Curotto
- Department of Research and Production Reactors, CNEA, Presbítero Juan González Aragón, B1802AYA, Ezeiza, Buenos Aires, Argentina
| | - Emiliano César Cayetano Pozzi
- Department of Research and Production Reactors, CNEA, Presbítero Juan González Aragón, B1802AYA, Ezeiza, Buenos Aires, Argentina
| | - Rómulo Luis Cabrini
- Department of Radiobiology, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina; Faculty of Dentistry, University of Buenos Aires, Marcelo T. de Alvear 2142, C1122AAH, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gisela Saint Martin
- Department of Radiobiology, National Atomic Energy Commission (CNEA), Av. General Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
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42
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Blood–brain barrier (BBB) toxicity and permeability assessment after L-(4-10Boronophenyl)alanine, a conventional B-containing drug for boron neutron capture therapy, using an in vitro BBB model. Brain Res 2014; 1583:34-44. [DOI: 10.1016/j.brainres.2014.08.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 08/07/2014] [Indexed: 12/24/2022]
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Alejo A, Kar S, Ahmed H, Krygier AG, Doria D, Clarke R, Fernandez J, Freeman RR, Fuchs J, Green A, Green JS, Jung D, Kleinschmidt A, Lewis CLS, Morrison JT, Najmudin Z, Nakamura H, Nersisyan G, Norreys P, Notley M, Oliver M, Roth M, Ruiz JA, Vassura L, Zepf M, Borghesi M. Characterisation of deuterium spectra from laser driven multi-species sources by employing differentially filtered image plate detectors in Thomson spectrometers. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:093303. [PMID: 25273715 DOI: 10.1063/1.4893780] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel method for characterising the full spectrum of deuteron ions emitted by laser driven multi-species ion sources is discussed. The procedure is based on using differential filtering over the detector of a Thompson parabola ion spectrometer, which enables discrimination of deuterium ions from heavier ion species with the same charge-to-mass ratio (such as C(6+), O(8+), etc.). Commonly used Fuji Image plates were used as detectors in the spectrometer, whose absolute response to deuterium ions over a wide range of energies was calibrated by using slotted CR-39 nuclear track detectors. A typical deuterium ion spectrum diagnosed in a recent experimental campaign is presented, which was produced from a thin deuterated plastic foil target irradiated by a high power laser.
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Affiliation(s)
- A Alejo
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - S Kar
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - H Ahmed
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - A G Krygier
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - D Doria
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - R Clarke
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - J Fernandez
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - R R Freeman
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - J Fuchs
- LULI, École Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau, France
| | - A Green
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - J S Green
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - D Jung
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - A Kleinschmidt
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt, Germany
| | - C L S Lewis
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - J T Morrison
- Propulsion Systems Directorate, Air Force Research Lab, Wright Patterson Air Force Base, Ohio 45433, USA
| | - Z Najmudin
- Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom
| | - H Nakamura
- Blackett Laboratory, Department of Physics, Imperial College, London SW7 2AZ, United Kingdom
| | - G Nersisyan
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - P Norreys
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - M Notley
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - M Oliver
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
| | - M Roth
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt, Germany
| | - J A Ruiz
- Instituto de Fusión Nuclear, Universidad Politécnica de Madrid, 28006 Madrid, Spain
| | - L Vassura
- LULI, École Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau, France
| | - M Zepf
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - M Borghesi
- Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
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Wittig A, Moss RL, Sauerwein WA. Glioblastoma, brain metastases and soft tissue sarcoma of extremities: Candidate tumors for BNCT. Appl Radiat Isot 2014; 88:46-9. [DOI: 10.1016/j.apradiso.2013.11.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 11/18/2013] [Indexed: 11/25/2022]
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Bortolussi S, Ciani L, Postuma I, Protti N, Luca Reversi, Bruschi P, Ferrari C, Cansolino L, Panza L, Ristori S, Altieri S. Boron concentration measurements by alpha spectrometry and quantitative neutron autoradiography in cells and tissues treated with different boronated formulations and administration protocols. Appl Radiat Isot 2014; 88:78-80. [DOI: 10.1016/j.apradiso.2013.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 11/28/2013] [Accepted: 12/03/2013] [Indexed: 10/25/2022]
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46
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Tanaka H, Sakurai Y, Suzuki M, Masunaga SI, Takamiya K, Maruhashi A, Ono K. Development of a simple and rapid method of precisely identifying the position of 10B atoms in tissue: an improvement in standard alpha autoradiography. JOURNAL OF RADIATION RESEARCH 2014; 55:373-380. [PMID: 24142968 PMCID: PMC3951073 DOI: 10.1093/jrr/rrt110] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/09/2013] [Accepted: 08/16/2013] [Indexed: 05/27/2023]
Abstract
Boron neutron capture therapy (BNCT) can be utilized to selectively kill cancer cells using a boron compound that accumulates only in cancer cells and not in normal cells. Tumor-bearing animals treated by BNCT are routinely used to evaluate long-term antitumor effects of new boron compounds. Alpha-autoradiography is one of the methods employed in the evaluation of antitumor effects. However, a standard alpha-autoradiography cannot detect the microdistribution of (10)B because of the difficulty associated with the superposition of a tissue sample image and etched pits on a track detector with the etching process. In order to observe the microdistribution of (10)B, some special methods of alpha-autoradiography have been developed that make use of a special track detector, or the atomic force microscope combined with X-ray and UV light irradiation. In contrast, we propose, herein, a simple and rapid method of precisely identifying the position of (10)B using the imaging process and the shape of etched pits, such as their circularity, without the need to use special track detectors or a microscope. A brief description of this method and its verification test are presented in this article. We have established a method of detecting the microdistribution of (10)B with submicron deviation between the position of etched pits and the position of reaction in a tissue sample, for a given circularity of etched pits.
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Affiliation(s)
| | | | | | | | | | | | - Koji Ono
- Corresponding author. Kyoto University Research Reactor Institute, 2-1010, Asashiro-nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan. Tel: +81-72-451-2475; Fax: +81-72-451-2627;
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47
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Colautti P, Moro D, Chiriotti S, Conte V, Evangelista L, Altieri S, Bortolussi S, Protti N, Postuma I. Microdosimetric measurements in the thermal neutron irradiation facility of LENA reactor. Appl Radiat Isot 2014; 88:147-52. [PMID: 24508176 DOI: 10.1016/j.apradiso.2014.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/09/2014] [Accepted: 01/09/2014] [Indexed: 11/20/2022]
Abstract
A twin TEPC with electric-field guard tubes has been constructed to be used to characterize the BNCT field of the irradiation facility of LENA reactor. One of the two mini TEPC was doped with 50ppm of (10)B in order to simulate the BNC events occurring in BNCT. By properly processing the two microdosimetric spectra, the gamma, neutron and BNC spectral components can be derived with good precision (~6%). However, direct measurements of (10)B in some doped plastic samples, which were used for constructing the cathode walls, point out the scarce accuracy of the nominal (10)B concentration value. The influence of the Boral(®) door, which closes the irradiation channel, has been measured. The gamma dose increases significantly (+51%) when the Boral(®) door is closed. The crypt-cell-regeneration weighting function has been used to measure the quality, namely the RBEµ value, of the radiation field in different conditions. The measured RBEµ values are only partially consistent with the RBE values of other BNCT facilities.
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Affiliation(s)
- P Colautti
- INFN, Laboratori Nazionali di Legnaro, viale dell׳Università 2, I-35020 Legnaro, PD, Italy.
| | - D Moro
- INFN, Laboratori Nazionali di Legnaro, viale dell׳Università 2, I-35020 Legnaro, PD, Italy
| | - S Chiriotti
- INFN, Laboratori Nazionali di Legnaro, viale dell׳Università 2, I-35020 Legnaro, PD, Italy; SCK.CEN, Boeretang 200, B-2400 Mol, Belgium
| | - V Conte
- INFN, Laboratori Nazionali di Legnaro, viale dell׳Università 2, I-35020 Legnaro, PD, Italy
| | - L Evangelista
- INFN, Laboratori Nazionali di Legnaro, viale dell׳Università 2, I-35020 Legnaro, PD, Italy; Radiotherapy and Nuclear Medicine Unit, Istituto Oncologico Veneto, Padova, via Gattamelata 64, I-35128 Padova, Italy
| | - S Altieri
- Department of Physics, University of Pavia, via Bassi 6, I-27100 Pavia, Italy; INFN, Section of Pavia, via Bassi 6, I-7100 Pavia, Italy
| | - S Bortolussi
- Department of Physics, University of Pavia, via Bassi 6, I-27100 Pavia, Italy; INFN, Section of Pavia, via Bassi 6, I-7100 Pavia, Italy
| | - N Protti
- Department of Physics, University of Pavia, via Bassi 6, I-27100 Pavia, Italy; INFN, Section of Pavia, via Bassi 6, I-7100 Pavia, Italy
| | - I Postuma
- Department of Physics, University of Pavia, via Bassi 6, I-27100 Pavia, Italy; INFN, Section of Pavia, via Bassi 6, I-7100 Pavia, Italy
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48
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Bortolussi S, Altieri S. Boron concentration measurement in biological tissues by charged particle spectrometry. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2013; 52:493-503. [PMID: 23835595 DOI: 10.1007/s00411-013-0480-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 06/22/2013] [Indexed: 05/17/2023]
Abstract
Measurement of boron concentration in biological tissues is a fundamental aspect of boron neutron capture therapy, because the outcome of the therapy depends on the distribution of boron at a cellular level, besides on its overall concentration. This work describes a measurement technique based on the spectroscopy of the charged particles emitted in the reaction (10)B(n,α)(7)Li induced by thermal neutrons, allowing for a quantitative determination of the boron concentration in the different components that may be simultaneously present in a tissue sample, such as healthy cells, tumor cells and necrotic cells. Thin sections of tissue containing (10)B are cut at low temperatures and irradiated under vacuum in a thermal neutron field. The charged particles arising from the sample during the irradiation are collected by a thin silicon detector, and their spectrum is used to determine boron concentration through relatively easy calculations. The advantages and disadvantages of this technique are here described, and validation of the method using tissue standards with known boron concentrations is presented.
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Affiliation(s)
- S Bortolussi
- Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy,
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49
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Sun T, Zhang Z, Li B, Chen G, Xie X, Wei Y, Wu J, Zhou Y, Du Z. Boron neutron capture therapy induces cell cycle arrest and cell apoptosis of glioma stem/progenitor cells in vitro. Radiat Oncol 2013; 8:195. [PMID: 23915425 PMCID: PMC3751121 DOI: 10.1186/1748-717x-8-195] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 07/23/2013] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Glioma stem cells in the quiescent state are resistant to clinical radiation therapy. An almost inevitable glioma recurrence is due to the persistence of these cells. The high linear energy transfer associated with boron neutron capture therapy (BNCT) could kill quiescent and proliferative cells. METHODS The present study aimed to evaluate the effects of BNCT on glioma stem/progenitor cells in vitro. The damage induced by BNCT was assessed using cell cycle progression, apoptotic cell ratio and apoptosis-associated proteins expression. RESULTS The surviving fraction and cell viability of glioma stem/progenitor cells were decreased compared with differentiated glioma cells using the same boronophenylalanine pretreatment and the same dose of neutron flux. BNCT induced cell cycle arrest in the G2/M phase and cell apoptosis via the mitochondrial pathway, with changes in the expression of associated proteins. CONCLUSIONS Glioma stem/progenitor cells, which are resistant to current clinical radiotherapy, could be effectively killed by BNCT in vitro via cell cycle arrest and apoptosis using a prolonged neutron irradiation, although radiosensitivity of glioma stem/progenitor cells was decreased compared with differentiated glioma cells when using the same dose of thermal neutron exposure and boronophenylalanine pretreatment. Thus, BNCT could offer an appreciable therapeutic advantage to prevent tumor recurrence, and may become a promising treatment in recurrent glioma.
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Affiliation(s)
- Ting Sun
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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50
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Carboranyl-porphyrazines and derivatives for boron neutron capture therapy: From synthesis to in vitro tests. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.03.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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