1
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Matsuya Y, Sato T, Kusumoto T, Yachi Y, Seino R, Miwa M, Ishikawa M, Matsuyama S, Fukunaga H. Cell-cycle dependence on the biological effects of boron neutron capture therapy and its modification by polyvinyl alcohol. Sci Rep 2024; 14:16696. [PMID: 39030350 PMCID: PMC11271528 DOI: 10.1038/s41598-024-67041-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 07/08/2024] [Indexed: 07/21/2024] Open
Abstract
Boron neutron capture therapy (BNCT) is a unique radiotherapy of selectively eradicating tumor cells using boron compounds (e.g., 4-borono-L-phenylalanine [BPA]) that are heterogeneously taken up at the cellular level. Such heterogenicity potentially reduces the curative efficiency. However, the effects of temporospatial heterogenicity on cell killing remain unclear. With the technical combination of radiation track detector and biophysical simulations, this study revealed the cell cycle-dependent heterogenicity of BPA uptake and subsequent biological effects of BNCT on HeLa cells expressing fluorescent ubiquitination-based cell cycle indicators, as well as the modification effects of polyvinyl alcohol (PVA). The results showed that the BPA concentration in the S/G2/M phase was higher than that in the G1/S phase and that PVA enhances the biological effects both by improving the uptake and by canceling the heterogenicity. These findings might contribute to a maximization of therapeutic efficacy when BNCT is combined with PVA and/or cell cycle-specific anticancer agents.
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Affiliation(s)
- Yusuke Matsuya
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, 319-1195, Japan.
- Faculty of Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
| | - Tatsuhiko Sato
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, 319-1195, Japan
| | - Tamon Kusumoto
- National Institutes for Quantum and Radiological Science and Technology, Chiba, 263-8555, Japan
| | - Yoshie Yachi
- Graduate School of Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Ryosuke Seino
- Graduate School of Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Misako Miwa
- Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Masayori Ishikawa
- Faculty of Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Shigeo Matsuyama
- Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - Hisanori Fukunaga
- Faculty of Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan.
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2
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Lan G, Song Q, Luan Y, Cheng Y. Targeted strategies to deliver boron agents across the blood-brain barrier for neutron capture therapy of brain tumors. Int J Pharm 2024; 650:123747. [PMID: 38151104 DOI: 10.1016/j.ijpharm.2023.123747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 12/29/2023]
Abstract
Boron neutron capture therapy (BNCT), as an innovative radiotherapy technology, has demonstrated remarkable outcomes when compared to conventional treatments in the management of recurrent and refractory brain tumors. However, in BNCT of brain tumors, the blood-brain barrier is a main stumbling block for restricting the transport of boron drugs to brain tumors, while the tumor targeting and retention of boron drugs also affect the BNCT effect. This review focuses on the recent development of strategies for delivering boron drugs crossing the blood-brain barrier and targeting brain tumors, providing new insights for the development of efficient boron drugs for the treatment of brain tumors.
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Affiliation(s)
- Gongde Lan
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qingxu Song
- Department of Radiation Oncology, Boron Neutron Capture Therapy Medical Center, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yuxia Luan
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yufeng Cheng
- Department of Radiation Oncology, Boron Neutron Capture Therapy Medical Center, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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3
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Wang Z, Wang H, Lin S, Labib M, Ahmed S, Das J, Angers S, Sargent EH, Kelley SO. Efficient Delivery of Biological Cargos into Primary Cells by Electrodeposited Nanoneedles via Cell-Cycle-Dependent Endocytosis. NANO LETTERS 2023. [PMID: 37040490 DOI: 10.1021/acs.nanolett.2c05083] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Nanoneedles are a useful tool for delivering exogenous biomolecules to cells. Although therapeutic applications have been explored, the mechanism regarding how cells interact with nanoneedles remains poorly studied. Here, we present a new approach for the generation of nanoneedles, validated their usefulness in cargo delivery, and studied the underlying genetic modulators during delivery. We fabricated arrays of nanoneedles based on electrodeposition and quantified its efficacy of delivery using fluorescently labeled proteins and siRNAs. Notably, we revealed that our nanoneedles caused the disruption of cell membranes, enhanced the expression of cell-cell junction proteins, and downregulated the expression of transcriptional factors of NFκB pathways. This perturbation trapped most of the cells in G2 phase, in which the cells have the highest endocytosis activities. Taken together, this system provides a new model for the study of interactions between cells and high-aspect-ratio materials.
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Affiliation(s)
- Zongjie Wang
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto M5S 3M2, Canada
| | - Hansen Wang
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto M5S 3M2, Canada
| | - Sichun Lin
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto M5S 3M2, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto M5S 3E1, Canada
| | - Mahmoud Labib
- Department of Chemistry, Weinberg College of Arts & Sciences, Northwestern University, Evanston, Illinois 60208, United States
- Peninsula Medical School, Faculty of Health, University of Plymouth, Plymouth, PL6 8BU, United Kingdom
| | - Sharif Ahmed
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Jagotamoy Das
- Department of Chemistry, Weinberg College of Arts & Sciences, Northwestern University, Evanston, Illinois 60208, United States
| | - Stephane Angers
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto M5S 3M2, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto M5S 3E1, Canada
| | - Edward H Sargent
- The Edward S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Toronto M5S 3G4, Canada
| | - Shana O Kelley
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto M5S 3M2, Canada
- Department of Chemistry, Weinberg College of Arts & Sciences, Northwestern University, Evanston, Illinois 60208, United States
- Department of Biochemistry, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois 60611, United States
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
- Chan Zuckerberg Biohub Chicago, Chicago, Illinois 60607, United States
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4
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Improved Boron Neutron Capture Therapy Using Integrin αvβ3-Targeted Long-Retention-Type Boron Carrier in a F98 Rat Glioma Model. BIOLOGY 2023; 12:biology12030377. [PMID: 36979069 PMCID: PMC10045558 DOI: 10.3390/biology12030377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/03/2023]
Abstract
Integrin αvβ3 is more highly expressed in high-grade glioma cells than in normal tissues. In this study, a novel boron-10 carrier containing maleimide-functionalized closo-dodecaborate (MID), serum albumin as a drug delivery system, and cyclic arginine-glycine-aspartate (cRGD) that can target integrin αvβ3 was developed. The efficacy of boron neutron capture therapy (BNCT) targeting integrin αvβ3 in glioma cells in the brain of rats using a cRGD-functionalized MID-albumin conjugate (cRGD-MID-AC) was evaluated. F98 glioma cells exposed to boronophenylalanine (BPA), cRGD-MID-AC, and cRGD + MID were used for cellular uptake and neutron-irradiation experiments. An F98 glioma-bearing rat brain tumor model was used for biodistribution and neutron-irradiation experiments after BPA or cRGD-MID-AC administration. BNCT using cRGD-MID-AC had a sufficient cell-killing effect in vitro, similar to that with BNCT using BPA. In biodistribution experiments, cRGD-MID-AC accumulated in the brain tumor, with the highest boron concentration observed 8 h after administration. Significant differences were observed between the untreated group and BNCT using cRGD-MID-AC groups in the in vivo neutron-irradiation experiments through the log-rank test. Long-term survivors were observed only in BNCT using cRGD-MID-AC groups 8 h after intravenous administration. These findings suggest that BNCT with cRGD-MID-AC is highly selective against gliomas through a mechanism that is different from that of BNCT with BPA.
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Evaluation of the Key Advantages between Two Modalities of Boronophenylalanine Administration for Clinical Boron Neutron Capture Therapy Using an Animal Model. Cells 2022; 11:cells11172736. [PMID: 36078143 PMCID: PMC9454519 DOI: 10.3390/cells11172736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/17/2022] Open
Abstract
In clinical boron neutron capture therapy (BNCT), boronophenylalanine (BPA) administrations through one-step infusion (OSI) and two-step infusion (TSI) are the most widely used. This study compared the advantages of OSI and TSI using a human oral squamous cell carcinoma-bearing animal model. OSI was administered at a high-dose rate of 20 mg/kg/min for 20 min (total dose: 400 mg/kg) as the first step infusion. TSI was a prolonged infusion at a low-dose rate of 1.67 mg/kg/min for 15, 30, 45, and 60 min (total dose: 25, 50, 75, and 100 mg/kg) following the first step infusion. The sigmoid Emax model was used to evaluate the boron accumulation effect in the tumor. The advantages of TSI were observed to be greater than those of OSI. The observed advantages of TSI were as follows: a stable level of boron concentration in blood; tumor to blood boron ratio (T/B); tumor to muscle boron ratio (T/M); and skin to blood boron ratio (S/B). The boron accumulation effect in tumors increased to 68.98%. Thus, effective boron concentration in these tumor cells was achieved to enhance the lethal damage in BNCT treatment. Boron concentration in the blood was equal to that in the skin. Therefore, the equivalent dose was accurately estimated for the skin.
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Importance of radiobiological studies for the advancement of boron neutron capture therapy (BNCT). Expert Rev Mol Med 2022; 24:e14. [PMID: 35357286 DOI: 10.1017/erm.2022.7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Boron neutron capture therapy (BNCT) is a tumour selective particle radiotherapy, based on the administration of boron carriers incorporated preferentially by tumour cells, followed by irradiation with a thermal or epithermal neutron beam. BNCT clinical results to date show therapeutic efficacy, associated with an improvement in patient quality of life and prolonged survival. Translational research in adequate experimental models is necessary to optimise BNCT for different pathologies. This review recapitulates some examples of BNCT radiobiological studies for different pathologies and clinical scenarios, strategies to optimise boron targeting, enhance BNCT therapeutic effect and minimise radiotoxicity. It also describes the radiobiological mechanisms induced by BNCT, and the importance of the detection of biomarkers to monitor and predict the therapeutic efficacy and toxicity of BNCT alone or combined with other strategies. Besides, there is a brief comment on the introduction of accelerator-based neutron sources in BNCT. These sources would expand the clinical BNCT services to more patients, and would help to make BNCT a standard treatment modality for various types of cancer. Radiobiological BNCT studies have been of utmost importance to make progress in BNCT, being essential to design novel, safe and effective clinical BNCT protocols.
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Yoshimura K, Kawabata S, Kashiwagi H, Fukuo Y, Takeuchi K, Futamura G, Hiramatsu R, Takata T, Tanaka H, Watanabe T, Suzuki M, Hu N, Miyatake SI, Wanibuchi M. Efficacy of Boron Neutron Capture Therapy in Primary Central Nervous System Lymphoma: In Vitro and In Vivo Evaluation. Cells 2021; 10:cells10123398. [PMID: 34943904 PMCID: PMC8699713 DOI: 10.3390/cells10123398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 11/21/2022] Open
Abstract
Background: Boron neutron capture therapy (BNCT) is a nuclear reaction-based tumor cell-selective particle irradiation method. High-dose methotrexate and whole-brain radiation therapy (WBRT) are the recommended treatments for primary central nervous system lymphoma (PCNSL). This tumor responds well to initial treatment but relapses even after successful treatment, and the prognosis is poor as there is no safe and effective treatment for relapse. In this study, we aimed to conduct basic research to explore the possibility of using BNCT as a treatment for PCNSL. Methods: The boron concentration in human lymphoma cells was measured. Subsequently, neutron irradiation experiments on lymphoma cells were conducted. A mouse central nervous system (CNS) lymphoma model was created to evaluate the biodistribution of boron after the administration of borono-phenylalanine as a capture agent. In the neutron irradiation study of a mouse PCNSL model, the therapeutic effect of BNCT on PCNSL was evaluated in terms of survival. Results: The boron uptake capability of human lymphoma cells was sufficiently high both in vitro and in vivo. In the neutron irradiation study, the BNCT group showed a higher cell killing effect and prolonged survival compared with the control group. Conclusions: A new therapeutic approach for PCNSL is urgently required, and BNCT may be a promising treatment for PCNSL. The results of this study, including those of neutron irradiation, suggest success in the conduct of future clinical trials to explore the possibility of BNCT as a new treatment option for PCNSL.
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Affiliation(s)
- Kohei Yoshimura
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
| | - Shinji Kawabata
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
- Correspondence: ; Tel.: +81-72-63-1221
| | - Hideki Kashiwagi
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
| | - Yusuke Fukuo
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
| | - Koji Takeuchi
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
| | - Gen Futamura
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
| | - Ryo Hiramatsu
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
| | - Takushi Takata
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan 590-0494, Japan; (T.T.); (H.T.); (T.W.); (M.S.)
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan 590-0494, Japan; (T.T.); (H.T.); (T.W.); (M.S.)
| | - Tsubasa Watanabe
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan 590-0494, Japan; (T.T.); (H.T.); (T.W.); (M.S.)
| | - Minoru Suzuki
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan 590-0494, Japan; (T.T.); (H.T.); (T.W.); (M.S.)
| | - Naonori Hu
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (N.H.); (S.-I.M.)
| | - Shin-Ichi Miyatake
- Kansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (N.H.); (S.-I.M.)
| | - Masahiko Wanibuchi
- Department of Neurosurgery, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-Machi, Takatsuki 569-8686, Japan; (K.Y.); (H.K.); (Y.F.); (K.T.); (G.F.); (R.H.); (M.W.)
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BNCT for primary synovial sarcoma. Appl Radiat Isot 2020; 169:109407. [PMID: 33444907 DOI: 10.1016/j.apradiso.2020.109407] [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: 08/18/2020] [Accepted: 09/01/2020] [Indexed: 01/17/2023]
Abstract
Synovial sarcoma is a rare tumor requiring new treatment methods. A 46-year-old woman with primary monophasic synovial sarcoma in the left thigh involving the sciatic nerve, declining surgery because of potential dysfunction of the affected limbs, received two courses of BNCT. The tumor thus reduced was completely resected with no subsequent recurrence. The patient is now able to walk unassisted, and no local recurrence has been observed, demonstrating the applicability of BNCT as adjuvant therapy for synovial sarcoma. Further study and analysis with more experience accumulation are needed to confirm the real impact of BNCT efficacy for its application to synovial sarcoma.
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Andoh T, Fujimoto T, Satani R, Suzuki M, Wada K, Sudo T, Sakurai Y, Tanaka H, Takata T, Ichikawa H. Preclinical study of boron neutron capture therapy for bone metastasis using human breast cancer cell lines. Appl Radiat Isot 2020; 165:109257. [PMID: 32777739 DOI: 10.1016/j.apradiso.2020.109257] [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: 08/17/2019] [Revised: 05/01/2020] [Accepted: 05/31/2020] [Indexed: 11/29/2022]
Abstract
Bone metastasis has a major impact on the quality of life that general therapy cannot control. We established a bone metastasis model with a human breast cancer cell line and investigated the therapeutic effect of boron neutron capture therapy (BNCT). BNCT suppressed tumor growth in cases of intramedullary small tumors without damaging normal tissues, providing preliminary evidence that it is a potentially new therapeutic option for controlling tumor growth from bone metastasis. Further research is warranted for its clinical application.
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Affiliation(s)
- Tooru Andoh
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Kobe, 650-8586, Japan.
| | - Takuya Fujimoto
- Department of Orthopaedic Surgery, Hyogo Cancer Center, Akashi, 673-8558, Japan
| | - Ryoichi Satani
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Kobe, 650-8586, Japan
| | - Minoru Suzuki
- Particle Radiation Oncology, Institute for Integrated Radiation and Nuclear Science, Kyoto University, Sennan-gun, 590-0494, Japan
| | - Keijiro Wada
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Kobe, 650-8586, Japan
| | - Tamotsu Sudo
- Section of Translational Research, Hyogo Cancer Center, Akashi, 673-8558, Japan
| | - Yoshinori Sakurai
- Particle Radiation Medical Physics, Institute for Integrated Radiation and Nuclear Science, Kyoto University, Sennan-gun, 590-0494, Japan
| | - Hiroki Tanaka
- Particle Radiation Medical Physics, Institute for Integrated Radiation and Nuclear Science, Kyoto University, Sennan-gun, 590-0494, Japan
| | - Takushi Takata
- Particle Radiation Medical Physics, Institute for Integrated Radiation and Nuclear Science, Kyoto University, Sennan-gun, 590-0494, Japan
| | - Hideki Ichikawa
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Kobe, 650-8586, Japan
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Fujimoto T, Suzuki M, Sudo T, Fujita I, Sakuma T, Sakurai Y, Hirose T, Morishita M, Takata T, Tamari Y, Tanaka H, Andoh T, Kawamoto T, Hara H, Fukase N, Kawakami Y, Shigemoto R, Matsumoto T, Ichikawa H, Ono K, Kuroda R, Akisue T. Boron neutron capture therapy for clear cell sarcoma. Appl Radiat Isot 2020; 166:109324. [PMID: 32861973 DOI: 10.1016/j.apradiso.2020.109324] [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: 06/19/2019] [Revised: 10/05/2019] [Accepted: 07/03/2020] [Indexed: 11/26/2022]
Abstract
Clear cell sarcoma of tendons and aponeuroses (CCS) is a rare, malignant tumor arising in lower extremities with no effective treatment other than wide surgical resection. Here described is a case of primary CCS in the peroneal tendon of the right foot of a 54-year-old woman enrolled to undergo BNCT. The tumor mass post-BNCT disappeared totally without damage to other normal tissue, demonstrating, for the first time, the potential efficacy of BNCT in complete local control of CCS.
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Affiliation(s)
- Takuya Fujimoto
- Department of Orthopaedic Surgery, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan; Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Minoru Suzuki
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, 590-0494, Japan
| | - Tamotsu Sudo
- Section of Translational Research, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan
| | - Ikuo Fujita
- Department of Orthopaedic Surgery, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan
| | - Toshiko Sakuma
- Department of Diagnostic Pathology, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan
| | - Yoshinori Sakurai
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, 590-0494, Japan
| | - Takanori Hirose
- Department of Diagnostic Pathology, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan
| | - Masayuki Morishita
- Department of Orthopaedic Surgery, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan
| | - Takushi Takata
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, 590-0494, Japan
| | - Yuki Tamari
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, 590-0494, Japan
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, 590-0494, Japan
| | - Tooru Andoh
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, 1-1-3 Minatojima, Chuo-ku, Kobe, 650-8586, Japan
| | - Teruya Kawamoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; Division of Orthopaedic Surgery, Kobe University International Clinical Cancer Research Center, 1-5-1 Minatojimaminami-cho, Chuo-ku, Kobe, 650-0047, Japan
| | - Hitomi Hara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Naomasa Fukase
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yohei Kawakami
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Rika Shigemoto
- Department of Orthopaedic Surgery, Hyogo Cancer Center, 13-70 Kitaouji-cho, Akashi, 673-8558, Japan
| | - Tomoyuki Matsumoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hideki Ichikawa
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University, 1-1-3 Minatojima, Chuo-ku, Kobe, 650-8586, Japan
| | - Koji Ono
- Kansai BNCT Medical Center, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki, 569-8686, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Toshihiro Akisue
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan; Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, 7-10- 2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
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11
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Nakai K, Endo K, Yoshida F, Koka M, Yamada N, Satoh T, Tsurubuchi T, Matsumura A, Matsumoto Y, Sakurai H. Boron analysis and imaging of cells with 2-hr BPA exposure by using micro-proton particle-induced gamma-ray emission (PIGE). Appl Radiat Isot 2020; 165:109334. [PMID: 32739796 DOI: 10.1016/j.apradiso.2020.109334] [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: 08/31/2019] [Revised: 07/05/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
Abstract
Particle-induced gamma-ray emission (PIGE), which measures prompt gamma rays at 428 keV from 10B (p, p'γ) 7Be, was used to confirm the boron distribution within 2hr-BPA-exposed cells. Distribution images of potassium, phosphate, and boron and the whole spectrum showed the ratios of boron counts to total (%) as follows: control group: 1.35 ± 0.073%; 2hr boron exposure group: 2.33 ± 0.35%; and boron exposure/wash group: 1.58 ± 0.095%. Micro-beam PIXE/PIGE can be a promising tool for visualization of intracellular Boron.
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Affiliation(s)
- Kei Nakai
- Ibaraki Prefectural University of Health Sciences, 4669-2 Ami, Inashiki, Ibaraki, 300-0331, Japan; Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Keita Endo
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Fumiyo Yoshida
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Masashi Koka
- Takasaki Advanced Radiation Research Institute, National Institute for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki, Gunma, 370-1292, Japan
| | - Naoto Yamada
- Takasaki Advanced Radiation Research Institute, National Institute for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki, Gunma, 370-1292, Japan
| | - Takahiro Satoh
- Takasaki Advanced Radiation Research Institute, National Institute for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki, Gunma, 370-1292, Japan
| | - Takao Tsurubuchi
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Akira Matsumura
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yoshitaka Matsumoto
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Hideyuki Sakurai
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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Uspenskii SA, Khaptakhanova PA, Zaboronok AA, Kurkin TS, Volkova OY, Mechetina LV, Taranin AV, Kanygin VV, Akira M, Taskaev SY. Elemental Boron Nanoparticles: Production by Ultrasonication in Aqueous Medium and Application in Boron Neutron Capture Therapy. DOKLADY CHEMISTRY 2020. [DOI: 10.1134/s0012500820030027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Evaluation of the total distribution volume of 18F-FBPA in normal tissues of healthy volunteers by non-compartmental kinetic modeling. Ann Nucl Med 2019; 34:155-162. [PMID: 31808134 PMCID: PMC7033086 DOI: 10.1007/s12149-019-01427-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/28/2019] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Boron neutron capture therapy (BNCT) is a noninvasive radiation therapy method for cancer treatment. In BNCT, 4-borono-2-[18F]-fluoro-L-phenylalanine (18F-FBPA) PET has been employed to estimate 10B accumulation in target tumors and normal tissues if 10B borono-L-phenylalanine (10B-BPA) is used as a boron carrier. The purpose of the current study was to evaluate the total distribution volume (Vt) of 18F-FBPA in normal organs of healthy volunteers by kinetic analysis and to estimate boron concentration in normal organs for the therapeutic dose of 10B-BPA using obtained Vt values. METHODS Six healthy volunteers were injected with 18F-FBPA (3-5 MBq/kg), and 7 PET-CT scans were performed subsequently. 18F-FBPA radioactivity in whole blood and plasma was measured before, and eight times after the injection. PET images were analyzed by PMOD software. Twelve volumetric regions of interest including the brain, heart, right lung, spleen, liver, parotid salivary glands, esophagus, stomach, pancreas, intestines, and bone marrow were drawn manually for each subject and analyzed with the Logan plot and two Ichise multilinear analyses (MA1 and MA2). The better model was defined by several goodness-of-fit parameters and residual distribution. After Vt values had been derived, boron concentration was estimated in ppm for the 10B-BPA-fructose (10B-BPA-fr) dose 30 g 1 and 2 h post-injection using Vt and interpolated plasma activity data. RESULTS The Ichise MA2 model showed the best fit among all models. Akaike Information Criterion (AIC) was the lowest for the Ichise's MA2 in all regions (mean AIC value - 14.0) comparing to the other models (Logan plot mean AIC 31.4; Ichise MA1 model mean AIC - 4.2). Mean Vt values of the Ichise MA2 model ranged from 0.94 ± 0.14 ml/ml in the pancreas to 0.16 ± 0.02 ml/ml in the right lung. Estimated boron concentration for 10B-BPA-fr had the highest value in the pancreas (14.0 ± 1.9 ppm 1 h after, and 5.7 ± 1.7 ppm 2 h after the 18F-FBPA administration) and the lowest value in the right lung (2.4 ± 0.3 ppm 1 h, and 1.0 ± 0.3 ppm 2 h post-injection). CONCLUSION The 10B concentration in normal tissues was best estimated using Vt values of 18F-FBPA with the Ichise multilinear analysis 2 (MA2). TRAIL REGISTRY The UMIN clinical trial number: UMIN000022850.
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14
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Trivillin VA, Serrano A, Garabalino MA, Colombo LL, Pozzi EC, Hughes AM, Curotto PM, Thorp SI, Farías RO, González SJ, Bortolussi S, Altieri S, Itoiz ME, Aromando RF, Nigg DW, Schwint AE. Translational boron neutron capture therapy (BNCT) studies for the treatment of tumors in lung. Int J Radiat Biol 2019; 95:646-654. [PMID: 30601686 DOI: 10.1080/09553002.2019.1564080] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
PURPOSE Boron neutron capture therapy (BNCT) combines selective accumulation of 10B carriers in tumor tissue with subsequent neutron irradiation. BNCT has been proposed for the treatment of multiple, non-resectable, diffuse tumors in lung. The aim of the present study was to evaluate the therapeutic efficacy and toxicity of BNCT in an experimental model of lung metastases of colon carcinoma in BDIX rats and perform complementary survival studies. MATERIALS AND METHODS We evaluated tumor control and toxicity in lung 2 weeks post-BNCT at 2 dose levels, including 5 experimental groups per dose level: T0 (euthanized pre-treatment), Boronophenylalanine-BNCT (BPA-BNCT), BPA + Sodium decahydrodecaborate-BNCT ((BPA + GB-10)-BNCT), Beam only (BO) and Sham (no treatment, same manipulation). Tumor response was assessed employing macroscopic and microscopic end-points. An additional experiment was performed to evaluate survival and oxygen saturation in blood. RESULTS AND CONCLUSIONS No dose-limiting signs of short/medium-term toxicity were observed in lung. All end-points revealed statistically significant BNCT-induced tumor control vs Sham at both dose levels. The survival experiment showed a statistically significant 45% increase in post-treatment survival time in the BNCT group (48 days) versus Sham (33 days). These data consistently revealed growth suppression of lung metastases by BNCT with no manifest lung toxicity. Highlights Boron Neutron Capture Therapy suppresses growth of experimental lung metastases No BNCT-induced short/medium-term toxicity in lung is associated with tumor control Boron Neutron Capture Therapy increased post-treatment survival time by 45.
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Affiliation(s)
- Verónica Andrea Trivillin
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina.,b Consejo Nacional de Investigaciones Científicas y Técnicas , Buenos Aires, Argentina
| | - Ayelén Serrano
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina
| | | | - Lucas Luis Colombo
- b Consejo Nacional de Investigaciones Científicas y Técnicas , Buenos Aires, Argentina.,c Universidad de Buenos Aires, Instituto de Oncología Ángel H. Roffo, Área Investigación , Buenos Aires , Argentina.,d Universidad Abierta Interamericana , Buenos Aires, Argentina
| | | | - Andrea Monti Hughes
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina.,b Consejo Nacional de Investigaciones Científicas y Técnicas , Buenos Aires, Argentina
| | - Paula M Curotto
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina
| | | | - Ruben O Farías
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina
| | - Sara J González
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina.,b Consejo Nacional de Investigaciones Científicas y Técnicas , Buenos Aires, Argentina
| | - Silva Bortolussi
- e Dipartimento di Fisica Nucleare e Teorica dell' Università degli studi di Pavia and Istituto Nazionale di Fisica Nucleare (INFN) , Pavia , Italia
| | - Saverio Altieri
- e Dipartimento di Fisica Nucleare e Teorica dell' Università degli studi di Pavia and Istituto Nazionale di Fisica Nucleare (INFN) , Pavia , Italia
| | - Maria E Itoiz
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina.,f Facultad de Odontología , Universidad de Buenos Aires , Buenos Aires, Argentina
| | - Romina F Aromando
- f Facultad de Odontología , Universidad de Buenos Aires , Buenos Aires, Argentina
| | - David W Nigg
- g Idaho National Laboratory , Idaho Falls, ID, USA
| | - Amanda E Schwint
- a Comisión Nacional de Energía Atómica , Buenos Aires, Argentina.,b Consejo Nacional de Investigaciones Científicas y Técnicas , Buenos Aires, Argentina
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15
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Ferrari E, Wittig A, Basilico F, Rossi R, De Palma A, Di Silvestre D, Sauerwein WA, Mauri PL. Urinary Proteomics Profiles Are Useful for Detection of Cancer Biomarkers and Changes Induced by Therapeutic Procedures. Molecules 2019; 24:molecules24040794. [PMID: 30813269 PMCID: PMC6412696 DOI: 10.3390/molecules24040794] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/15/2019] [Accepted: 02/19/2019] [Indexed: 12/19/2022] Open
Abstract
Boron neutron capture therapy (BNCT) is a binary cancer treatment modality where two different agents (10B and thermal neutrons) have to be present to produce an effect. A dedicated trial design is necessary for early clinical trials. The concentration of 10B in tissues is an accepted surrogate to predict BNCT effects on tissues. Tissue, blood, and urines were sampled after infusion of two different boron carriers, namely BSH and BPA in the frame of the European Organisation for Research and Treatment of Cancer (EORTC) trial 11001. In this study, urine samples were used to identify protein profiles prior and after drug infusion during surgery. Here, an approach that is based on the mass spectrometry (MS)-based proteomic analysis of urine samples from head and neck squamous cell carcinoma (HNSCC) and thyroid cancer patients is presented. This method allowed the identification of several inflammation- and cancer-related proteins, which could serve as tumor biomarkers. In addition, changes in the urinary proteome during and after therapeutic interventions were detected. In particular, a reduction of three proteins that were involved in inflammation has been observed: Galectin-3 Binding Protein, CD44, and osteopontin. The present work represents a proof of principle to follow proteasome changes during complex treatments based on urine samples.
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Affiliation(s)
- Emanuele Ferrari
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20090 Segrate (MI), Italy; (E.F.); (R.R.); (A.D.P.); (D.D.S.)
| | - Andrea Wittig
- Dept. of Radiotherapy and Radiation Oncology, University Hospital Jena, 07743 Jena, Germany;
| | - Fabrizio Basilico
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20090 Segrate (MI), Italy; (E.F.); (R.R.); (A.D.P.); (D.D.S.)
| | - Rossana Rossi
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20090 Segrate (MI), Italy; (E.F.); (R.R.); (A.D.P.); (D.D.S.)
| | - Antonella De Palma
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20090 Segrate (MI), Italy; (E.F.); (R.R.); (A.D.P.); (D.D.S.)
| | - Dario Di Silvestre
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20090 Segrate (MI), Italy; (E.F.); (R.R.); (A.D.P.); (D.D.S.)
| | | | - Pier Luigi Mauri
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), 20090 Segrate (MI), Italy; (E.F.); (R.R.); (A.D.P.); (D.D.S.)
- Istituto di Scienze della Vita, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
- Correspondence: ; Tel.: +39-02-264226728
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16
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Wada Y, Hirose K, Harada T, Sato M, Watanabe T, Anbai A, Hashimoto M, Takai Y. Impact of oxygen status on 10B-BPA uptake into human glioblastoma cells, referring to significance in boron neutron capture therapy. JOURNAL OF RADIATION RESEARCH 2018; 59:122-128. [PMID: 29315429 PMCID: PMC5950927 DOI: 10.1093/jrr/rrx080] [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] [Received: 07/01/2017] [Revised: 10/30/2017] [Indexed: 06/01/2023]
Abstract
Boron neutron capture therapy (BNCT) can potentially deliver high linear energy transfer particles to tumor cells without causing severe damage to surrounding normal tissue, and may thus be beneficial for cases with characteristics of infiltrative growth, which need a wider irradiation field, such as glioblastoma multiforme. Hypoxia is an important factor contributing to resistance to anticancer therapies such as radiotherapy and chemotherapy. In this study, we investigated the impact of oxygen status on 10B uptake in glioblastoma cells in vitro in order to evaluate the potential impact of local hypoxia on BNCT. T98G and A172 glioblastoma cells were used in the present study, and we examined the influence of oxygen concentration on cell viability, mRNA expression of L-amino acid transporter 1 (LAT1), and the uptake amount of 10B-BPA. T98G and A172 glioblastoma cells became quiescent after 72 h under 1% hypoxia but remained viable. Uptake of 10B-BPA, which is one of the agents for BNCT in clinical use, decreased linearly as oxygen levels were reduced from 20% through to 10%, 3% and 1%. Hypoxia with <10% O2 significantly decreased mRNA expression of LAT1 in both cell lines, indicating that reduced uptake of 10B-BPA in glioblastoma in hypoxic conditions may be due to reduced expression of this important transporter protein. Hypoxia inhibits 10B-BPA uptake in glioblastoma cells in a linear fashion, meaning that approaches to overcoming local tumor hypoxia may be an effective method of improving the success of BNCT treatment.
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Affiliation(s)
- Yuki Wada
- Department of Radiation Oncology, Southern Tohoku BNCT Research Center, 7-10 Yatsuyamada, Koriyama, Fukushima 963-8052, Japan
- Department of Radiology and Radiation Oncology, Akita University Graduate School of Medicine, Hospital, 1-1-1 Hondo, Akita, Akita 010-8543, Japan
| | - Katsumi Hirose
- Department of Radiation Oncology, Southern Tohoku BNCT Research Center, 7-10 Yatsuyamada, Koriyama, Fukushima 963-8052, Japan
- Department of Radiology and Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Takaomi Harada
- Department of Radiation Oncology, Southern Tohoku BNCT Research Center, 7-10 Yatsuyamada, Koriyama, Fukushima 963-8052, Japan
| | - Mariko Sato
- Department of Radiology and Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Tsubasa Watanabe
- Particle Radiation Oncology Research Center, Kyoto University Research Reactor Institute, 2 Asashiro-nisi, Sennan-gun, Osaka 590-0494, Japan
| | - Akira Anbai
- Department of Radiology and Radiation Oncology, Akita University Graduate School of Medicine, Hospital, 1-1-1 Hondo, Akita, Akita 010-8543, Japan
| | - Manabu Hashimoto
- Department of Radiology and Radiation Oncology, Akita University Graduate School of Medicine, Hospital, 1-1-1 Hondo, Akita, Akita 010-8543, Japan
| | - Yoshihiro Takai
- Department of Radiation Oncology, Southern Tohoku BNCT Research Center, 7-10 Yatsuyamada, Koriyama, Fukushima 963-8052, Japan
- Department of Radiology and Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
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17
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Sato T, Masunaga SI, Kumada H, Hamada N. Microdosimetric Modeling of Biological Effectiveness for Boron Neutron Capture Therapy Considering Intra- and Intercellular Heterogeneity in 10B Distribution. Sci Rep 2018; 8:988. [PMID: 29343841 PMCID: PMC5772701 DOI: 10.1038/s41598-017-18871-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 12/19/2017] [Indexed: 01/17/2023] Open
Abstract
We here propose a new model for estimating the biological effectiveness for boron neutron capture therapy (BNCT) considering intra- and intercellular heterogeneity in 10B distribution. The new model was developed from our previously established stochastic microdosimetric kinetic model that determines the surviving fraction of cells irradiated with any radiations. In the model, the probability density of the absorbed doses in microscopic scales is the fundamental physical index for characterizing the radiation fields. A new computational method was established to determine the probability density for application to BNCT using the Particle and Heavy Ion Transport code System PHITS. The parameters used in the model were determined from the measured surviving fraction of tumor cells administrated with two kinds of 10B compounds. The model quantitatively highlighted the indispensable need to consider the synergetic effect and the dose dependence of the biological effectiveness in the estimate of the therapeutic effect of BNCT. The model can predict the biological effectiveness of newly developed 10B compounds based on their intra- and intercellular distributions, and thus, it can play important roles not only in treatment planning but also in drug discovery research for future BNCT.
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Affiliation(s)
- Tatsuhiko Sato
- Japan Atomic Energy Agency (JAEA), Nuclear Science and Engineering Center, Research Group for Radiation Transport Analysis, 2-4 Shirakata, Tokai, Ibaraki, 319-1195, Japan.
| | - Shin-Ichiro Masunaga
- Particle Radiation Biology, Department of Radiation Life and Medical Science, Research Reactor Institute, Kyoto University, 2-1010 Asashiro-nishi, Kumatori, Sennan, Osaka, 590-0494, Japan
| | - Hiroaki Kumada
- Proton Medical Research Center, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Nobuyuki Hamada
- Radiation Safety Research Center, Nuclear Technology Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1 Iwado-kita, Komae, Tokyo, 201-8511, Japan
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18
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Kondo N, Sakurai Y, Hirota Y, Tanaka H, Watanabe T, Nakagawa Y, Narabayashi M, Kinashi Y, Miyatake SI, Hasegawa M, Suzuki M, Masunaga SI, Ohnishi T, Ono K. DNA damage induced by boron neutron capture therapy is partially repaired by DNA ligase IV. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2016; 55:89-94. [PMID: 26573366 DOI: 10.1007/s00411-015-0625-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
Boron neutron capture therapy (BNCT) is a particle radiation therapy that involves the use of a thermal or epithermal neutron beam in combination with a boron ((10)B)-containing compound that specifically accumulates in tumor. (10)B captures neutrons and the resultant fission reaction produces an alpha ((4)He) particle and a recoiled lithium nucleus ((7)Li). These particles have the characteristics of high linear energy transfer (LET) radiation and therefore have marked biological effects. High-LET radiation is a potent inducer of DNA damage, specifically of DNA double-strand breaks (DSBs). The aim of the present study was to clarify the role of DNA ligase IV, a key player in the non-homologous end-joining repair pathway, in the repair of BNCT-induced DSBs. We analyzed the cellular sensitivity of the mouse embryonic fibroblast cell lines Lig4-/- p53-/- and Lig4+/+ p53-/- to irradiation using a thermal neutron beam in the presence or absence of (10)B-para-boronophenylalanine (BPA). The Lig4-/- p53-/- cell line had a higher sensitivity than the Lig4+/+ p53-/-cell line to irradiation with the beam alone or the beam in combination with BPA. In BNCT (with BPA), both cell lines exhibited a reduction of the 50 % survival dose (D 50) by a factor of 1.4 compared with gamma-ray and neutron mixed beam (without BPA). Although it was found that (10)B uptake was higher in the Lig4+/+ p53-/- than in the Lig4-/- p53-/- cell line, the latter showed higher sensitivity than the former, even when compared at an equivalent (10)B concentration. These results indicate that BNCT-induced DNA damage is partially repaired using DNA ligase IV.
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Affiliation(s)
- Natsuko Kondo
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan.
| | - Yoshinori Sakurai
- Division of Medical Physics, Research Reactor Institute, Kyoto University, Sennan-gun, Osaka, 590-0494, Japan
| | - Yuki Hirota
- Department of Neurosurgery, Osaka Medical College, Takatsuki, Osaka, 569-8686, Japan
| | - Hiroki Tanaka
- Division of Medical Physics, Research Reactor Institute, Kyoto University, Sennan-gun, Osaka, 590-0494, Japan
| | - Tsubasa Watanabe
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Yosuke Nakagawa
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Masaru Narabayashi
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Yuko Kinashi
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Shin-ichi Miyatake
- Department of Neurosurgery, Osaka Medical College, Takatsuki, Osaka, 569-8686, Japan
| | - Masatoshi Hasegawa
- Department of Radiation Oncology, School of Medicine, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Minoru Suzuki
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Shin-ichiro Masunaga
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
| | - Takeo Ohnishi
- Department of Radiation Oncology, School of Medicine, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Koji Ono
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan
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19
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Andoh T, Fujimoto T, Suzuki M, Sudo T, Sakurai Y, Tanaka H, Fujita I, Fukase N, Moritake H, Sugimoto T, Sakuma T, Sasai H, Kawamoto T, Kirihata M, Fukumori Y, Akisue T, Ono K, Ichikawa H. Boron neutron capture therapy (BNCT) as a new approach for clear cell sarcoma (CCS) treatment: Trial using a lung metastasis model of CCS. Appl Radiat Isot 2015; 106:195-201. [DOI: 10.1016/j.apradiso.2015.07.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 06/23/2015] [Accepted: 07/12/2015] [Indexed: 10/23/2022]
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20
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Fujimoto T, Andoh T, Sudo T, Fujita I, Fukase N, Takeuchi T, Sonobe H, Inoue M, Hirose T, Sakuma T, Moritake H, Sugimoto T, Kawamoto T, Fukumori Y, Yamamoto S, Atagi S, Sakurai Y, Kurosaka M, Ono K, Ichikawa H, Suzuki M. Potential of boron neutron capture therapy (BNCT) for malignant peripheral nerve sheath tumors (MPNST). Appl Radiat Isot 2015; 106:220-5. [PMID: 26278348 DOI: 10.1016/j.apradiso.2015.07.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 11/19/2022]
Abstract
Malignant peripheral nerve sheath tumors (MPNST) are relatively rare neoplasms with poor prognosis. At present there is no effective treatment for MPNST other than surgical resection. Nonetheless, the anti-tumor effect of boron neutron capture therapy (BNCT) was recently demonstrated in two patients with MPNST. Subsequently, tumor-bearing nude mice subcutaneously transplanted with a human MPNST cell line were injected with p-borono-L-phenylalanine (L-BPA) and subjected to BNCT. Pathological studies then revealed that the MPNST cells were selectively destroyed by BNCT.
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Affiliation(s)
- Takuya Fujimoto
- Departments of Orthopaedic Surgery, Hyogo Cancer Center, Kitaouji 13-70, Akashi, Hyogo, 673-0021, Japan.
| | - Tooru Andoh
- Faculty of Pharmaceutical Sciences and Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe 650-8586, Japan
| | - Tamotsu Sudo
- Section of Translational Research, Hyogo Cancer Center, Akashi 673-0021, Japan
| | - Ikuo Fujita
- Departments of Orthopaedic Surgery, Hyogo Cancer Center, Kitaouji 13-70, Akashi, Hyogo, 673-0021, Japan
| | - Naomasa Fukase
- Departments of Orthopaedic Surgery, Hyogo Cancer Center, Kitaouji 13-70, Akashi, Hyogo, 673-0021, Japan
| | - Tamotsu Takeuchi
- Department of Immunopathology, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
| | - Hiroshi Sonobe
- Department of Clinical Laboratory, Chugoku Central Hospital, Fukuyama 720-0001, Japan
| | - Masayoshi Inoue
- Department of General Thoracic Surgery, Osaka University, Graduate School of Medicine, Suita 565-0871, Japan
| | - Tkanori Hirose
- Department of Diagnostic Pathology, Hyogo Cancer Center, Akashi 673-0021, Japan
| | - Toshiko Sakuma
- Department of Diagnostic Pathology, Hyogo Cancer Center, Akashi 673-0021, Japan
| | - Hiroshi Moritake
- Division of Pediatrics, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Tohru Sugimoto
- Department of Pediatrics, Saiseikai Shiga Hospital, Ritto 520-3046, Japan
| | - Teruya Kawamoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Yoshinobu Fukumori
- Faculty of Pharmaceutical Sciences and Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe 650-8586, Japan
| | | | - Shinji Atagi
- Department of Internal medicine, Kinki-chuo Chest Medical Center, Sakai 591-8025, Japan
| | - Yoshinori Sakurai
- Division of Radiation Life Science, Research Reactor Institute, Kyoto University, Sennan-gun 590-0494, Japan
| | - Masahiro Kurosaka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Koji Ono
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Sennan-gun 590-0494, Japan
| | - Hideki Ichikawa
- Faculty of Pharmaceutical Sciences and Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe 650-8586, Japan
| | - Minoru Suzuki
- Particle Radiation Oncology Research Center, Research Reactor Institute, Kyoto University, Sennan-gun 590-0494, Japan
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Ahrens VM, Frank R, Boehnke S, Schütz CL, Hampel G, Iffland DS, Bings NH, Hey-Hawkins E, Beck-Sickinger AG. Receptor-Mediated Uptake of Boron-Rich Neuropeptide Y Analogues for Boron Neutron Capture Therapy. ChemMedChem 2014; 10:164-72. [DOI: 10.1002/cmdc.201402368] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Indexed: 12/31/2022]
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Rossini AE, Dagrosa MA, Portu A, Saint Martin G, Thorp S, Casal M, Navarro A, Juvenal GJ, Pisarev MA. Assessment of biological effectiveness of boron neutron capture therapy in primary and metastatic melanoma cell lines. Int J Radiat Biol 2014; 91:81-9. [DOI: 10.3109/09553002.2014.942013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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23
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Andoh T, Fujimoto T, Sudo T, Suzuki M, Sakurai Y, Sakuma T, Moritake H, Sugimoto T, Takeuchi T, Sonobe H, Epstein AL, Fukumori Y, Ono K, Ichikawa H. Boron neutron capture therapy as new treatment for clear cell sarcoma: Trial on different animal model. Appl Radiat Isot 2014; 88:59-63. [DOI: 10.1016/j.apradiso.2013.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 12/06/2013] [Accepted: 12/06/2013] [Indexed: 11/26/2022]
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Garabalino MA, Heber EM, Monti Hughes A, González SJ, Molinari AJ, Pozzi ECC, Nievas S, Itoiz ME, Aromando RF, Nigg DW, Bauer W, Trivillin VA, Schwint AE. Biodistribution of sodium borocaptate (BSH) for boron neutron capture therapy (BNCT) in an oral cancer model. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2013; 52:351-361. [PMID: 23591915 DOI: 10.1007/s00411-013-0467-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 03/23/2013] [Indexed: 06/02/2023]
Abstract
Boron neutron capture therapy (BNCT) is based on selective accumulation of ¹⁰B carriers in tumor followed by neutron irradiation. We previously proved the therapeutic success of BNCT mediated by the boron compounds boronophenylalanine and sodium decahydrodecaborate (GB-10) in the hamster cheek pouch oral cancer model. Based on the clinical relevance of the boron carrier sodium borocaptate (BSH) and the knowledge that the most effective way to optimize BNCT is to improve tumor boron targeting, the specific aim of this study was to perform biodistribution studies of BSH in the hamster cheek pouch oral cancer model and evaluate the feasibility of BNCT mediated by BSH at nuclear reactor RA-3. The general aim of these studies is to contribute to the knowledge of BNCT radiobiology and optimize BNCT for head and neck cancer. Sodium borocaptate (50 mg ¹⁰B/kg) was administered to tumor-bearing hamsters. Groups of 3-5 animals were killed humanely at nine time-points, 3-12 h post-administration. Samples of blood, tumor, precancerous pouch tissue, normal pouch tissue and other clinically relevant normal tissues were processed for boron measurement by optic emission spectroscopy. Tumor boron concentration peaked to therapeutically useful boron concentration values of 24-35 ppm. The boron concentration ratio tumor/normal pouch tissue ranged from 1.1 to 1.8. Pharmacokinetic curves showed that the optimum interval between BSH administration and neutron irradiation was 7-11 h. It is concluded that BNCT mediated by BSH at nuclear reactor RA-3 would be feasible.
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Affiliation(s)
- Marcela A Garabalino
- Department of Radiobiology, National Atomic Energy Commission-CNEA, Avenida General Paz 1499, B1650KNA, San Martin, Buenos Aires, Argentina
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Fujimoto T, Andoh T, Sudo T, Fujita I, Moritake H, Sugimoto T, Sakuma T, Akisue T, Kawabata S, Kirihata M, Suzuki M, Sakurai Y, Ono K, Fukumori Y, Kurosaka M, Ichikawa H. Boron neutron capture therapy (BNCT) selectively destroys human clear cell sarcoma in mouse model. Appl Radiat Isot 2013; 73:96-100. [DOI: 10.1016/j.apradiso.2012.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 11/12/2012] [Accepted: 12/04/2012] [Indexed: 11/28/2022]
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26
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Sun T, Zhou Y, Xie X, Chen G, Li B, Wei Y, Chen J, Huang Q, Du Z. Selective uptake of boronophenylalanine by glioma stem/progenitor cells. Appl Radiat Isot 2012; 70:1512-8. [PMID: 22728842 DOI: 10.1016/j.apradiso.2012.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 04/03/2012] [Accepted: 04/03/2012] [Indexed: 12/22/2022]
Abstract
The success of boron neutron capture therapy (BNCT) depends on the amount of boron in cells and the tumor/blood and tumor/(normal tissue) boron concentration ratios. For the first time, measurements of boron uptake in both stem/progenitor and differentiated glioma cells were performed along with measurements of boron biodistribution in suitable animal models. In glioma stem/progenitor cells, the selective accumulation of boronophenylalanine (BPA) was lower, and retention of boron after BPA removal was longer than in differentiated glioma cells in vitro. However, boron biodistribution was not statistically significantly different in mice with xenografts.
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Affiliation(s)
- Ting Sun
- Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Wang P, Zhen H, Jiang X, Zhang W, Cheng X, Guo G, Mao X, Zhang X. Boron neutron capture therapy induces apoptosis of glioma cells through Bcl-2/Bax. BMC Cancer 2010; 10:661. [PMID: 21122152 PMCID: PMC3003659 DOI: 10.1186/1471-2407-10-661] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Accepted: 12/02/2010] [Indexed: 05/02/2023] Open
Abstract
BACKGROUND Boron neutron capture therapy (BNCT) is an alternative treatment modality for patients with glioma. The aim of this study was to determine whether induction of apoptosis contributes to the main therapeutic efficacy of BNCT and to compare the relative biological effect (RBE) of BNCT, γ-ray and reactor neutron irradiation. METHODS The neutron beam was obtained from the Xi'an Pulsed Reactor (XAPR) and γ-rays were obtained from [60Co] γ source of the Fourth Military Medical University (FMMU) in China. Human glioma cells (the U87, U251, and SHG44 cell lines) were irradiated by neutron beams at the XAPR or [60Co] γ-rays at the FMMU with different protocols: Group A included control nonirradiated cells; Group B included cells treated with 4 Gy of [60Co] γ-rays; Group C included cells treated with 8 Gy of [60Co] γ-rays; Group D included cells treated with 4 Gy BPA (p-borono-phenylalanine)-BNCT; Group E included cells treated with 8 Gy BPA-BNCT; Group F included cells irradiated in the reactor for the same treatment period as used for Group D; Group G included cells irradiated in the reactor for the same treatment period as used for Group E; Group H included cells irradiated with 4 Gy in the reactor; and Group I included cells irradiated with 8 Gy in the reactor. Cell survival was determined using the 3-(4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium (MTT) cytotoxicity assay. The morphology of cells was detected by Hoechst33342 staining and transmission electron microscope (TEM). The apoptosis rate was detected by flow cytometer (FCM). The level of Bcl-2 and Bax protein was measured by western blot analysis. RESULTS Proliferation of U87, U251, and SHG44 cells was much more strongly inhibited by BPA-BNCT than by irradiation with [60Co] γ-rays (P < 0.01). Nuclear condensation was determined using both a fluorescence technique and electron microscopy in all cell lines treated with BPA-BNCT. Furthermore, the cellular apoptotic rates in Group D and Group E treated with BPA-BNCT were significantly higher than those in Group B and Group C irradiated by [60Co] γ-rays (P < 0.01). The clonogenicity of glioma cells was reduced by BPA-BNCT compared with cells treated in the reactor (Group F, G, H, I), and with the control cells (P < 0.01). Upon BPA-BNCT treatment, the Bax level increased in glioma cells, whereas Bcl-2 expression decreased. CONCLUSIONS Compared with γ-ray and reactor neutron irradiation, a higher RBE can be achieved upon treatment of glioma cells with BNCT. Glioma cell apoptosis induced by BNCT may be related to activation of Bax and downregulation of Bcl-2.
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Affiliation(s)
- Peng Wang
- Department of Neurosurgery of Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, PR China
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Yamamoto T, Nakai K, Kageji T, Kumada H, Endo K, Matsuda M, Shibata Y, Matsumura A. Boron neutron capture therapy for newly diagnosed glioblastoma. Radiother Oncol 2009; 91:80-4. [DOI: 10.1016/j.radonc.2009.02.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 01/28/2009] [Accepted: 02/15/2009] [Indexed: 11/25/2022]
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Tsurubuchi T, Yamamoto T, Nakai K, Zaboronok A, Yoshida F, Miyakawa M, Shirakawa M, Yamamoto Y, Matsuda M, Matsumura A. Intracellular uptake of a new boronated porphyrin EC032. Appl Radiat Isot 2009; 67:S94-6. [PMID: 19410469 DOI: 10.1016/j.apradiso.2009.03.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We measured the toxicity and intracellular uptake of a newly developed boronated porphyrin EC032, and verified the fluorescence-based boron concentration measuring methods. Toxicity study showed that concentration required to produce a 50% reduction in viability (IC(50)) of EC032 was more than 0.25 mM. Fluorescence study showed the intracellular uptake of EC032 increased up until 24 h after its exposure to C6, 9L, U87, and U251 cells. There was also a linear correlation between ICP-AES and fluorescence intensity as an arbitrary unit about measurement of boron concentration. Fluorescence-based boron concentration measuring methods are very simple and useful methods, especially for screening of slight test dose of porphyrin compounds.
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Affiliation(s)
- T Tsurubuchi
- Department of Neurosurgery, Institute of Clinical Medicine, University of Tsukuba, Japan
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Detta A, Cruickshank GS. L-amino acid transporter-1 and boronophenylalanine-based boron neutron capture therapy of human brain tumors. Cancer Res 2009; 69:2126-32. [PMID: 19244126 DOI: 10.1158/0008-5472.can-08-2345] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The system l-amino acid transporter-1 (LAT-1) imports p-boronophenylalanine (BPA) into cells and may play a major role in the effectiveness of BPA-based boron neutron capture therapy. The functional status of LAT-1 and its relationship to cell proliferation were simultaneously examined in the same section of human tumor material using a dual-labeling technique. The uptake of BPA (boron inductively coupled plasma mass spectrometry) was profiled in the presence of agonists and antagonists in fresh tumor explants. The number of LAT-1-expressing cells (mean +/- SD) was three times higher than that of proliferating cell nuclear antigen (PCNA)-expressing cells (71.5 +/- 17.02% versus 23.8 +/- 16.5%; P < 0.0001; n = 38 glioblastoma and metastatic tumors). There was no correlation between PCNA cells and the number of LAT-1/PCNA double-stained cells, and not all PCNA-expressing cells coexpressed LAT-1. Boron uptake reached 30 +/- 15 mug/g of wet weight of tissue by 4 hours both in tumor and brain around tumor tissue containing tumor cells compared with time 0 (P < 0.005; n = 4 glioblastoma tumors). This uptake was inhibited by both phenylalanine and 2-aminobicyclo-(2,2,1)-heptane-2-carboxylic acid. These LAT-1 data indicate that BPA-based boron neutron capture therapy might affect up to 70% of tumor cells, representing a three times higher proportion of tumor cells than their cell cycle status might suggest. Cells expressing PCNA, but not LAT-1, will require a different therapeutic strategy.
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Affiliation(s)
- Allah Detta
- Department of Neurosurgery, Molecular Neurooncology Laboratory, The University of Birmingham, Queen Elizabeth Hospital Neuroscience Centre, Edgbaston, Birmingham, United Kingdom
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Chandra S, Tjarks W, Lorey DR, Barth RF. Quantitative subcellular imaging of boron compounds in individual mitotic and interphase human glioblastoma cells with imaging secondary ion mass spectrometry (SIMS). J Microsc 2008; 229:92-103. [PMID: 18173648 DOI: 10.1111/j.1365-2818.2007.01869.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Boron measurements at subcellular scale are essential in boron neutron capture therapy (BNCT) of cancer as the nuclear localization of boron-10 atoms can enhance the effectiveness of killing individual tumour cells. Since tumours contain a heterogeneous population of cells in interphase as well as in the M phase (mitotic division) of the cell cycle, it is important to evaluate the subcellular distribution of boron in both phases. In this work, the secondary ion mass spectrometry (SIMS) based imaging technique of ion microscopy was used to quantitatively image boron from two BNCT agents, clinically used p-boronophenylalanine (BPA) and 3-[4-(o-carboran-1-yl)butyl]thymidine (N4), in mitotic metaphase and interphase human glioblastoma T98G cells. N4 belongs to a class of experimental BNCT agents, designated 3-carboranyl thymidine analogues (3CTAs), which presumably accumulate selectively in cancer cells due to a process referred to as kinase-mediated trapping (KMT). The cells were exposed to BPA for 1 h and N4 for 2 h. A CAMECA IMS-3f SIMS ion microscope instrument capable of producing isotopic images with 500 nm spatial resolution was used in the study. Observations were made in cryogenically prepared fast frozen, and freeze-fractured, freeze-dried cells. Three discernible subcellular regions were studied: the nucleus, a characteristic mitochondria-rich perinuclear cytoplasmic region, and the remaining cytoplasm in interphase T98G cells. In metaphase cells, the chromosomes and the cytoplasm were studied for boron localization. Intracellular concentrations of potassium and sodium also were measured in each cell in which the subcellular boron concentrations were imaged. Since the healthy cells maintain a K/Na ratio of approximately 10 due to the presence of Na-K-ATPase in the plasma membrane of mammalian cells, these measurements provided validation for cryogenic sample preparation and indicated the analysis healthy, well preserved cells. The BPA-treated interphase cells revealed significantly lower concentrations of boron in the perinuclear mitochondria-rich cytoplasmic region as compared to the remaining cytoplasm and the nucleus, which were not significantly different from each other. In contrast, the BPA-treated metaphase cells revealed significantly lower concentration of boron in their chromosomes than cytoplasm. In addition, the cytoplasm of metaphase cells contained significantly less boron than the cytoplasm of interphase cells. These observations provide valuable information on the reduced uptake of boron from BPA in mitotic cells for BPA-mediated BNCT. SIMS observations on N4 revealed that boron was distributed throughout the interphase and mitotic cells, including the chromosomes. The presence of boron in chromosomes of metaphase cells treated with N4 is indicative of a possible incorporation of this thymidine analogue into DNA. The 3-D SIMS imaging approach for the analysis of mitotic cells shown in this work should be equally feasible to the evaluation of other BNCT agents.
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Affiliation(s)
- S Chandra
- Cornell SIMS Laboratory, Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, USA.
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Boron neutron capture therapy for glioblastoma. Cancer Lett 2008; 262:143-52. [DOI: 10.1016/j.canlet.2008.01.021] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Revised: 01/11/2008] [Accepted: 01/14/2008] [Indexed: 11/23/2022]
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Yoshida F, Yamamoto T, Nakai K, Kumada H, Shibata Y, Tsuruta W, Endo K, Tsurubuchi T, Matsumura A. Combined use of sodium borocaptate and buthionine sulfoximine in boron neutron capture therapy enhanced tissue boron uptake and delayed tumor growth in a rat subcutaneous tumor model. Cancer Lett 2008; 263:253-8. [PMID: 18272285 DOI: 10.1016/j.canlet.2008.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Revised: 12/20/2007] [Accepted: 01/03/2008] [Indexed: 01/13/2023]
Abstract
We have previously reported that buthionine sulfoximine (BSO) enhances sodium borocaptate (BSH) uptake by down regulating glutathione (GSH) synthesis in cultured cells. This study investigated the influence of BSO on tissue BSH uptake in vivo and the efficacy of BSH-BSO-mediated boron neutron capture therapy (BNCT) on tumor growth using a Fisher-344 rat subcutaneous tumor model. With BSO supplementation, boron uptake in subcutaneous tumor, blood, skin, muscle, liver, and kidney was significantly enhanced and maintained for 12h. Tumor growth was significantly delayed by using BSO. With further improvement in experimental conditions, radiation exposure time, together with radiation damage to normal tissues, could be reduced.
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Affiliation(s)
- Fumiyo Yoshida
- University of Tsukuba, Graduate School of Comprehensive Human Sciences, Functional and Regulatory Medical Sciences, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
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Yokoyama K, Miyatake SI, Kajimoto Y, Kawabata S, Doi A, Yoshida T, Okabe M, Kirihata M, Ono K, Kuroiwa T. Analysis of Boron DistributionIn Vivofor Boron Neutron Capture Therapy using Two Different Boron Compounds by Secondary Ion Mass Spectrometry. Radiat Res 2007; 167:102-9. [PMID: 17214510 DOI: 10.1667/rr0501.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2005] [Accepted: 07/31/2006] [Indexed: 11/03/2022]
Abstract
The efficiency of boron neutron capture therapy (BNCT) for malignant gliomas depends on the selective and absolute accumulation of (10)B atoms in tumor tissues. Only two boron compounds, BPA and BSH, currently can be used clinically. However, the detailed distributions of these compounds have not been determined. Here we used secondary ion mass spectrometry (SIMS) to determine the histological distribution of (10)B atoms derived from the boron compounds BSH and BPA. C6 tumor-bearing rats were given 500 mg/kg of BPA or 100 mg/kg of BSH intraperitoneally; 2.5 h later, their brains were sectioned and subjected to SIMS. In the main tumor mass, BPA accumulated heterogeneously, while BSH accumulated homogeneously. In the peritumoral area, both BPA and BSH accumulated measurably. Interestingly, in this area, BSH accumulated distinctively in a diffuse manner even 800 microm distant from the interface between the main tumor and normal brain. In the contralateral brain, BPA accumulated measurably, while BSH did not. In conclusion, both BPA and BSH each have advantages and disadvantages. These compounds are considered to be essential as boron delivery agents independently for clinical BNCT. There is some rationale for the simultaneous use of both compounds in clinical BNCT for malignant gliomas.
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Affiliation(s)
- Kunio Yokoyama
- Department of Neurosurgery, Osaka Medical College, Takatsuki, Osaka, Japan
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Yokoyama K, Miyatake SI, Kajimoto Y, Kawabata S, Doi A, Yoshida T, Asano T, Kirihata M, Ono K, Kuroiwa T. Pharmacokinetic study of BSH and BPA in simultaneous use for BNCT. J Neurooncol 2006; 78:227-32. [PMID: 16557351 DOI: 10.1007/s11060-005-9099-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2005] [Accepted: 12/07/2005] [Indexed: 10/24/2022]
Abstract
In order to improve the effectiveness of boron neutron capture therapy (BNCT) for malignant gliomas, we examined the optimization of the administration of boron compounds in brain tumor animal model. We analyzed the concentration of boron atoms in intracranial C6 glioma -bearing rats using inductively coupled plasma atomic emission spectrometry. Each tumor-bearing rat received one of two different amounts of sodium borocaptate (BSH) and/or 500 mg/kg of boronophenylalanine (BPA) via intraperitoneal injection. We compared the boron concentrations of the tumor, the contralateral normal brain and the blood in rats of 3 different treatment groups (BSH alone, BPA alone and a combination of both BSH and BPA). Our results show that the tumor boron concentration increased much more than 30 microg/g by the coadministration of both compounds. Additionally, the blood boron concentration remained below 30 microg/g and the boron concentration in the normal brain was low (mean 4.7+/-1.1 microg/g). Even in comparison with the administration of BPA alone, coadministration of BPA and BSH shows an improved tumor/normal brain ratio of boron concentrations.
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Affiliation(s)
- Kunio Yokoyama
- Department of Neurosurgery, Osaka Medical College, Takatsuki Osaka, Japan
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Yoshida F, Matsumura A, Yamamoto T, Kumada H, Nakai K. Enhancement of sodium borocaptate (BSH) uptake by tumor cells induced by glutathione depletion and its radiobiological effect. Cancer Lett 2004; 215:61-7. [PMID: 15374633 DOI: 10.1016/j.canlet.2004.06.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2004] [Revised: 06/10/2004] [Accepted: 06/14/2004] [Indexed: 11/18/2022]
Abstract
Sodium borocaptate (BSH) is widely used for boron neutron capture therapy (BNCT) of brain tumors. However, the mechanism of uptake by the tumor remains unclear. We investigated the sulfhydryl moiety of this compound. Down regulation of glutathione (GSH) by buthionine sulfoximine in cultured cells resulted in increase of BSH uptake (7.9-36.5%) compared to the control group and consequently the cytocidal effect of neutron irradiation also increased. On the other hand, the radiation caused damage by gamma-ray irradiation was suppressed when BSH uptake increased. These findings suggested that modulation of GSH enhanced the effect of B (n, alpha) reaction and the protective effect of secondary gamma-ray in BNCT.
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Affiliation(s)
- Fumiyo Yoshida
- University of Tsukuba, Graduate School of Comprehensive Human Sciences, Functional and Regulatory Medical Sciences, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
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