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Xiang J, Ma L, Gu Z, Jin H, Zhai H, Tong J, Liang T, Li J, Ren Q, Liu Q. A Boronated Derivative of Temozolomide Showing Enhanced Efficacy in Boron Neutron Capture Therapy of Glioblastoma. Cells 2022; 11:cells11071173. [PMID: 35406737 PMCID: PMC8998031 DOI: 10.3390/cells11071173] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/21/2022] [Accepted: 03/24/2022] [Indexed: 02/04/2023] Open
Abstract
There is an incontestable need for improved treatment modality for glioblastoma due to its extraordinary resistance to traditional chemoradiation therapy. Boron neutron capture therapy (BNCT) may play a role in the future. We designed and synthesized a 10B-boronated derivative of temozolomide, TMZB. BNCT was carried out with a total neutron radiation fluence of 2.4 ± 0.3 × 1011 n/cm2. The effects of TMZB in BNCT were measured with a clonogenic cell survival assay in vitro and PET/CT imaging in vivo. Then, 10B-boronated phenylalanine (BPA) was tested in parallel with TMZB for comparison. The IC50 of TMZB for the cytotoxicity of clonogenic cells in HS683 was 0.208 mM, which is comparable to the IC50 of temozolomide at 0.213 mM. In BNCT treatment, 0.243 mM TMZB caused 91.2% ± 6.4% of clonogenic cell death, while 0.239 mM BPA eliminated 63.7% ± 6.3% of clonogenic cells. TMZB had a tumor-to-normal brain ratio of 2.9 ± 1.1 and a tumor-to-blood ratio of 3.8 ± 0.2 in a mouse glioblastoma model. BNCT with TMZB in this model caused 58.2% tumor shrinkage at 31 days after neutron irradiation, while the number for BPA was 35.2%. Therefore, by combining the effects of chemotherapy from temozolomide and radiotherapy with heavy charged particles from BNCT, TMZB-based BNCT exhibited promising potential for therapeutic applications in glioblastoma treatment.
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Affiliation(s)
- Jing Xiang
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China;
- Shenzhen Bay Laboratory, Institute of Biomedical Engineering, Shenzhen 518132, China;
| | - Lin Ma
- Department of Stomatology, General Hospital, Shenzhen University, Shenzhen 518055, China;
| | - Zheng Gu
- Shenzhen Bay Laboratory, Institute of Biomedical Engineering, Shenzhen 518132, China;
| | - Hongjun Jin
- Guangdong Provincial Key Lab of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China;
| | - Hongbin Zhai
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China;
| | - Jianfei Tong
- Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (J.T.); (T.L.); (J.L.)
- Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Tianjiao Liang
- Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (J.T.); (T.L.); (J.L.)
- Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Juan Li
- Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (J.T.); (T.L.); (J.L.)
- Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Qiushi Ren
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China;
- Shenzhen Bay Laboratory, Institute of Biomedical Engineering, Shenzhen 518132, China;
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China;
- Correspondence: (Q.R.); (Q.L.); Tel.: +86-0755-26038837 (Q.R. & Q.L.)
| | - Qi Liu
- Shenzhen Bay Laboratory, Institute of Biomedical Engineering, Shenzhen 518132, China;
- Institute of Biomedical Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China;
- Correspondence: (Q.R.); (Q.L.); Tel.: +86-0755-26038837 (Q.R. & Q.L.)
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Khojasteh NB, Pazirandeh A, Jameie B, Goodarzi S. Effect of time period after boric acid injection on 10B absorption in different regions of adult male rat's brain. Appl Radiat Isot 2012; 70:1010-3. [PMID: 22476013 DOI: 10.1016/j.apradiso.2012.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 03/06/2012] [Accepted: 03/06/2012] [Indexed: 11/28/2022]
Abstract
Distribution of (10)B in different regions of rat normal brain was studied. Two groups were chosen as control and trial. Trial group received 2 ml of neutral boron compound. 2, 4 and 6 h after the injection brain removed, coronal sections of forebrain, midbrain and hindbrain were sandwiched between two pieces of polycarbonate. Autoradiography plots of (10)B distribution showed significant differences in three regions with the highest (10)B concentration in the forebrain during 4 h after injection.
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Affiliation(s)
- Nasrin Baghban Khojasteh
- Nuclear Engineering Department, Science and Research Branch, Islamic Azad University, Tehran, Iran.
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Abstract
As part of phase I/II melanoma BNCT clinical trial conducted in Argentina in a cooperative effort of the Argentine Atomic Energy Commission (CNEA) and the Oncology Institute Angel H. Roffo (IOAHR), 7 patients (6 female-1 male) received eight treatment sessions covering ten anatomical areas located in extremities. Mean age of the patients was 64 years (51-74). The treatments were performed between October 2003 and June 2007. All patients presented multiple subcutaneous skin metastases of melanoma and received an infusion containing approximately 14 gr/m(2) of (10)borophenyl-alanine (BPA) followed by the exposition of the area to a mixed thermal-epithermal neutron beam at the RA-6 reactor. The maximum prescribed dose to normal skin ranged from 16.5 to 24 Gy-Eq and normal tissue administered dose varied from 15.8 to 27.5 Gy-Eq. Considering evaluable nodules, 69.3% of overall response and 30.7% of no changes were seen. The toxicity was acceptable, with 3 out of 10 evaluable areas showing ulceration (30% toxicity grade 3).
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