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Zhong T, Yang Y, Pang M, Pan Y, Jing S, Qi Y, Huang Y. Human Serum Albumin-Coated 10B Enriched Carbon Dots as Targeted "Pilot Light" for Boron Neutron Capture Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2406577. [PMID: 39324650 DOI: 10.1002/advs.202406577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 09/10/2024] [Indexed: 09/27/2024]
Abstract
Boron neutron capture therapy (BNCT) is a physiologically focused radiation therapy that relies on nuclear capture and fission processes. BNCT is regarded as one of the most promising treatments due to its excellent accuracy, short duration of therapy, and low side effects. The creation of novel boron medicines with high selectivity, ease of delivery, and high boron-effective load is a current research topic. Herein, boron-containing carbon dots (BCDs) and their human serum albumin (HSA) complexes (BCDs-HSA) are designed and synthesized as boron-containing drugs for BNCT. BCDs (10B: 7.1 wt%) and BCDs-HSA exhibited excitation-independent orange fluorescent emission which supported the use of fluorescence imaging for tracking 10B in vivo. The introduction of HSA enabled BCDs-HSA to exhibit good biocompatibility and increased tumor accumulation. The active and passive targeting abilities of BCDs-HSA are explored in detail. Subcutaneous RM-1 tumors and B16-F10 tumors both significantly decrease with BNCT, which consists of injecting BCDs-HSA and then irradiating the area with neutrons. In short, this study provides a novel strategy for the delivery of boron and may broaden the perspectives for the design of boron-containing carbon dots nanomedicine for BNCT.
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Affiliation(s)
- Tianyuan Zhong
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yongjin Yang
- Department of Urology, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, Gansu, 730000, China
- Gansu Province Clinical Research Center for Urinary System Disease, Lanzhou, Gansu, 730000, China
| | - Miao Pang
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yong Pan
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Shiwei Jing
- School of Physics, Northeast Normal University, Changchun, 130024, China
| | - Yanxin Qi
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yubin Huang
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
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Ren H, Zhou N, Ma W, Zhang P, Tu D, Lu CS, Yan H. Dative Bonding Activation Enables Precise Functionalization of the Remote B-H Bond of nido-Carborane Clusters. J Am Chem Soc 2024; 146:26543-26555. [PMID: 39267603 DOI: 10.1021/jacs.4c10728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
Abstract
The innovation of synthetic strategies for selective B-H functionalization is a pivotal objective in the realm of boron cluster chemistry. However, the precise, efficient, and rapid functionalization of a B-H bond of carboranes that is distant from the existing functional groups remains intractable owing to the limited approaches for site-selective control from the established methods. Herein, we report a dative bonding activation strategy for the selective functionalization of a nonclassical remote B-H site of nido-carboranes. By leveraging the electronic effects brought by the exopolyhedral B(9)-dative bond, a cross-nucleophile B-H/S-H coupling protocol of the distal B(5)-H bond has been established. The dative bond not only amplifies the subtle reactivity difference among B-H bonds but also significantly changes the reactive sites, further infusing nido-carboranes with additional structural diversity. This reaction paradigm features mild conditions, rapid conversion, efficient production, broad scope, and excellent group tolerance, thus enabling the applicability to an array of complex bioactive molecules. The efficient and scalable reaction platform is amenable to the modular construction of photofunctional molecules and boron delivery agents for boron neutron capture therapy. This work not only provides an unprecedented solution for the selective diversification of distal B-H sites in nido-carboranes but also holds the potential for expediting the discovery of novel carborane-based functional molecules.
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Affiliation(s)
- Hongyuan Ren
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ningning Zhou
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wenli Ma
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ping Zhang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Deshuang Tu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Chang-Sheng Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Zhang Z, Wang X, Dai Q, Qin Y, Sun X, Suzuki M, Ying X, Han M, Wei Q. Peptide-Functionalized Gold Nanoparticles for Boron Neutron Capture Therapy with the potential to use in Glioblastoma Treatment. Pharm Dev Technol 2024:1-20. [PMID: 39286881 DOI: 10.1080/10837450.2024.2406044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 09/13/2024] [Accepted: 09/14/2024] [Indexed: 09/19/2024]
Abstract
Glioblastoma is a highly aggressive glioma with limited treatment options. Boron neutron capture therapy (BNCT) offers a promising approach for refractory cancers, utilizing boron-10 (10B) and thermal neutrons to generate cytotoxic particles. Effective BNCT depends on selective targeting and retention of 10B in tumors. Current BNCT drugs face issues with rapid clearance and poor tumor accumulation. To address this, we developed gold nanoparticles (AuNPs) functionalized with cyclic arginine-glycine-aspartic acid (cRGD) peptides as a nanocarrier for Sodium Mercaptododecaborate (BSH), resulting in AuNPs-BSH&PEG-cRGD. In vitro, AuNPs-BSH&PEG-cRGD increased 10B content in GL261 glioma cells by approximately 2.5-fold compared to unmodified AuNPs-BSH&PEG, indicating enhanced targeting due to cRGD's affinity for integrin receptor αvβ3. In a subcutaneous glioma mouse model, 6 hours post-intratumoral administration, the 10B concentration in tumors was 17.98 μg/g for AuNPs-BSH&PEG-cRGD, significantly higher than 0.45 μg/g for BSH. The tumor-to-blood (T/B) and tumor-to-normal tissue (T/N) ratios were also higher for AuNPs-BSH&PEG-cRGD, suggesting improved targeting and retention. This indicates that AuNPs-BSH&PEG-cRGD may enhance BNCT efficacy and minimize normal tissue toxicity. In summary, this study provides a novel strategy for BSH delivery and may broaden the design vision of BNCT nano-boron capture agents.
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Affiliation(s)
- Zhicheng Zhang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Xin Wang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Qi Dai
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yaxin Qin
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Hangzhou Institute of Innovative Medicine, Zhejiang University, Hangzhou 310058, China
| | - Xiaoyan Sun
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Minoru Suzuki
- Division of Particle Radiation Oncology, Particle Radiation Oncology Research Center, Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Xiaoying Ying
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Jinhua Institute of Zhejiang University, Jinhua 321299, China
| | - Min Han
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310058, China
- Jinhua Institute of Zhejiang University, Jinhua 321299, China
- Hangzhou Institute of Innovative Medicine, Zhejiang University, Hangzhou 310058, China
| | - Qichun Wei
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310058, China
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Howell N, Middleton RJ, Sierro F, Fraser BH, Wyatt NA, Chacon A, Bambery KR, Livio E, Dobie C, Bevitt JJ, Davies J, Dosseto A, Franklin DR, Garbe U, Guatelli S, Hirayama R, Matsufuji N, Mohammadi A, Mutimer K, Rendina LM, Rosenfeld AB, Safavi-Naeini M. Neutron Capture Enhances Dose and Reduces Cancer Cell Viability in and out of Beam During Helium and Carbon Ion Therapy. Int J Radiat Oncol Biol Phys 2024; 120:229-242. [PMID: 38479560 DOI: 10.1016/j.ijrobp.2024.02.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 02/10/2024] [Accepted: 02/24/2024] [Indexed: 04/14/2024]
Abstract
PURPOSE Neutron capture enhanced particle therapy (NCEPT) is a proposed augmentation of charged particle therapy that exploits thermal neutrons generated internally, within the treatment volume via nuclear fragmentation, to deliver a biochemically targeted radiation dose to cancer cells. This work is the first experimental demonstration of NCEPT, performed using both carbon and helium ion beams with 2 different targeted neutron capture agents (NCAs). METHODS AND MATERIALS Human glioblastoma cells (T98G) were irradiated by carbon and helium ion beams in the presence of NCAs [10B]-BPA and [157Gd]-DOTA-TPP. Cells were positioned within a polymethyl methacrylate phantom either laterally adjacent to or within a 100 × 100 × 60 mm spread out Bragg peak (SOBP). The effect of NCAs and location relative to the SOBP on the cells was measured by cell growth and survival assays in 6 independent experiments. Neutron fluence within the phantom was characterized by quantifying the neutron activation of gold foil. RESULTS Cells placed inside the treatment volume reached 10% survival by 2 Gy of carbon or 2 to 3 Gy of helium in the presence of NCAs compared with 5 Gy of carbon and 7 Gy of helium with no NCA. Cells placed adjacent to the treatment volume showed a dose-dependent decrease in cell growth when treated with NCAs, reaching 10% survival by 6 Gy of carbon or helium (to the treatment volume), compared with no detectable effect on cells without NCA. The mean thermal neutron fluence at the center of the SOBP was approximately 2.2 × 109 n/cm2/Gy (relative biological effectiveness) for the carbon beam and 5.8 × 109 n/cm2/Gy (relative biological effectiveness) for the helium beam and gradually decreased in all directions. CONCLUSIONS The addition of NCAs to cancer cells during carbon and helium beam irradiation has a measurable effect on cell survival and growth in vitro. Through the capture of internally generated neutrons, NCEPT introduces the concept of a biochemically targeted radiation dose to charged particle therapy. NCEPT enables the established pharmaceuticals and concepts of neutron capture therapy to be applied to a wider range of deeply situated and diffuse tumors, by targeting this dose to microinfiltrates and cells outside of defined treatment regions. These results also demonstrate the potential for NCEPT to provide an increased dose to tumor tissue within the treatment volume, with a reduction in radiation doses to off-target tissue.
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Affiliation(s)
- Nicholas Howell
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Ryan J Middleton
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Frederic Sierro
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Benjamin H Fraser
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Naomi A Wyatt
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Andrew Chacon
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Keith R Bambery
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Elle Livio
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Christopher Dobie
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Joseph J Bevitt
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Justin Davies
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Anthony Dosseto
- Wollongong Isotope Geochronology Laboratory, School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, Australia
| | - Daniel R Franklin
- School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, Australia
| | - Ulf Garbe
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Susanna Guatelli
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia
| | - Ryoichi Hirayama
- National Institutes for Quantum Sciences and Technology, Chiba, Japan
| | | | - Akram Mohammadi
- National Institutes for Quantum Sciences and Technology, Chiba, Japan
| | - Karl Mutimer
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | - Louis M Rendina
- School of Chemistry, The University of Sydney, Sydney, Australia; The University of Sydney Nano Institute, Sydney, Australia
| | - Anatoly B Rosenfeld
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia
| | - Mitra Safavi-Naeini
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia; Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia.
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Balboni A, Ailuno G, Baldassari S, Drava G, Petretto A, Grinovero N, Cavalleri O, Angeli E, Lagomarsino A, Canepa P, Corsaro A, Tremonti B, Barbieri F, Thellung S, Contini P, Cortese K, Florio T, Caviglioli G. Human glioblastoma-derived cell membrane nanovesicles: a novel, cell-specific strategy for boron neutron capture therapy of brain tumors. Sci Rep 2024; 14:19225. [PMID: 39160236 PMCID: PMC11333626 DOI: 10.1038/s41598-024-69696-7] [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: 04/10/2024] [Accepted: 08/06/2024] [Indexed: 08/21/2024] Open
Abstract
Glioblastoma (GBM), one of the deadliest brain tumors, accounts for approximately 50% of all primary malignant CNS tumors, therefore novel, highly effective remedies are urgently needed. Boron neutron capture therapy, which has recently repositioned as a promising strategy to treat high-grade gliomas, requires a conspicuous accumulation of boron atoms in the cancer cells. With the aim of selectively deliver sodium borocaptate (BSH, a 12 B atoms-including molecule already employed in the clinics) to GBM cells, we developed novel cell membrane-derived vesicles (CMVs), overcoming the limits of natural extracellular vesicles as drug carriers, while maintaining their inherent homing abilities that make them preferable to fully synthetic nanocarriers. Purified cell membrane fragments, isolated from patient-derived GBM stem-like cell cultures, were used to prepare nanosized CMVs, which retained some membrane proteins specific of the GBM parent cells and were devoid of potentially detrimental genetic material. In vitro tests evidenced the targeting ability of this novel nanosystem and ruled out any cytotoxicity. The CMVs were successfully loaded with BSH, by following two different procedures, i.e. sonication and electroporation, demonstrating their potential applicability in GBM therapy.
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Affiliation(s)
- Alice Balboni
- Department of Pharmacy, University of Genoa, 16148, Genoa, Italy
| | - Giorgia Ailuno
- Department of Pharmacy, University of Genoa, 16148, Genoa, Italy.
| | - Sara Baldassari
- Department of Pharmacy, University of Genoa, 16148, Genoa, Italy
| | - Giuliana Drava
- Department of Pharmacy, University of Genoa, 16148, Genoa, Italy
| | | | | | | | - Elena Angeli
- Department of Physics, University of Genoa, 16146, Genoa, Italy
| | | | - Paolo Canepa
- Department of Physics, University of Genoa, 16146, Genoa, Italy
| | - Alessandro Corsaro
- Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy
| | - Beatrice Tremonti
- Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy
| | - Federica Barbieri
- Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy
| | - Stefano Thellung
- Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy
| | - Paola Contini
- Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy
| | - Katia Cortese
- Department of Experimental Medicine, University of Genoa, 16132, Genoa, Italy
| | - Tullio Florio
- Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy.
- IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy.
| | - Gabriele Caviglioli
- Department of Pharmacy, University of Genoa, 16148, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy
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Fu WY, Chiu YL, Huang SC, Huang WY, Hsu FT, Lee HY, Wang TW, Keng PY. Boron Neutron Capture Therapy Enhanced by Boronate Ester Polymer Micelles: Synthesis, Stability, and Tumor Inhibition Studies. Biomacromolecules 2024; 25:4215-4232. [PMID: 38845149 PMCID: PMC11238341 DOI: 10.1021/acs.biomac.4c00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 07/09/2024]
Abstract
Boron neutron capture therapy (BNCT) targets invasive, radioresistant cancers but requires a selective and high B-10 loading boron drug. This manuscript investigates boron-rich poly(ethylene glycol)-block-(poly(4-vinylphenyl boronate ester)) polymer micelles synthesized via atom transfer radical polymerization for their potential application in BNCT. Transmission electron microscopy (TEM) revealed spherical micelles with a uniform size of 43 ± 10 nm, ideal for drug delivery. Additionally, probe sonication proved effective in maintaining the micelles' size and morphology postlyophilization and reconstitution. In vitro studies with B16-F10 melanoma cells demonstrated a 38-fold increase in boron accumulation compared to the borophenylalanine drug for BNCT. In vivo studies in a B16-F10 tumor-bearing mouse model confirmed enhanced tumor selectivity and accumulation, with a tumor-to-blood (T/B) ratio of 2.5, surpassing BPA's T/B ratio of 1.8. As a result, mice treated with these micelles experienced a significant delay in tumor growth, highlighting their potential for BNCT and warranting further research.
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Affiliation(s)
- Wan Yun Fu
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Yi-Lin Chiu
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Shi-Chih Huang
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Wei-Yuan Huang
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Fang-Tzu Hsu
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Han Yu Lee
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Tzu-Wei Wang
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
| | - Pei Yuin Keng
- Department of Material Science
and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan
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Cao J, Jin T, Shao S, Mao B, Feng J. Polymeric nanomaterials encapsulating fluorescent polyindole-nido- carborane: design, synthesis and biological evaluation. Front Chem 2024; 12:1402640. [PMID: 39036658 PMCID: PMC11257873 DOI: 10.3389/fchem.2024.1402640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 06/11/2024] [Indexed: 07/23/2024] Open
Abstract
The water-soluble nido-carborane was prepared by alkali treatment of o-carborane. A polymer PInd containing a polyindole structure was synthesized and employed to label the modified o-carborane. Subsequently, four polymeric nanomaterials were synthesized with the objective of encapsulating them in order to enhance its bioavailability. The experimental results showed that the fluorescent complex encapsulated by the pH-sensitive polymer A had the best UV absorption and fluorescence intensity, and thus A-PInd-C was chosen for subsequent experiments. The Transmission electron microscopy images revealed that the compounds exhibited a rounded internal morphology, with the layers exhibiting a tightly stacked arrangement. The AFM imaging revealed that the surface of the sample exhibited a relatively uniform and smooth appearance. In vitro release experiments conducted under acidic conditions demonstrated that A-PInd-C was released in a predominantly linear manner, with a maximum release rate of 80% observed within 48 h. Cellular imaging experiments showed that the compound could enter HeLa and HCT-116 cells and was mainly distributed around the nucleus, especially in the acidic environment. The results of the cell proliferation toxicity experiments demonstrated that A-PInd-C exhibited inhibitory effects on HeLa, PC-3 and L02 cells. Among these, the inhibitory effect on PC-3 cells was the most pronounced, reaching up to 70%. In conclusion, this paper solves the problem of poor bioavailability of carborane by improving the boron containing compounds and also makes the system have potential for Boron neutron capture therapy.
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Affiliation(s)
- Jia Cao
- Endoscopy Center, Department of Gastroenterology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Tao Jin
- Medical College of Anhui University of Science and Technology, Huainan, China
| | - Shihe Shao
- Medical College of Anhui University of Science and Technology, Huainan, China
| | - Boneng Mao
- Medical College of Anhui University of Science and Technology, Huainan, China
| | - Jin Feng
- Department of Gastroenterology, Yixing People’s Hospital Affiliated to Jiangsu University, Yixing, China
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8
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Tang H, Wang Z, Hao H, Luo W, Yang J, Li M, Yang M, Chen Z, Yan R, Li H, Hu F, Liang H, Liu Q, Lv L, Zhang J, Su W, Chen R, Chen K, Chang YN, Wang M, Zheng L, Feng X, Li J, Xing G. Boron-Containing Mesoporous Silica Nanoparticles with Effective Delivery and Targeting of Liver Cancer Cells for Boron Neutron Capture Therapy. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38686647 DOI: 10.1021/acsami.4c02897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Nanocarriers have been researched comprehensively for the development of novel boron-containing agents in boron neutron capture therapy (BNCT). We designed and synthesized a multifunctional mesoporous silica nanoparticle (MSN)-based boron-containing agent. The latter was coated with a lipid bilayer (LB) and decorated with SP94 peptide (SFSIIHTPILPL) on the surface as SP94-LB@BA-MSN. The latter incorporated boric acid (BA) into hydrophobic mesopores, coated with an LB, and modified with SP94 peptide on the LB. SP94-LB@BA-MSN enhanced nano interface tumor-targeting ability but also prevented the premature release of drugs, which is crucial for BNCT because adequate boron content in tumor sites is required. SP94-LB@BA-MSN showed excellent efficacy in the BNCT treatment of HepG-2 cells. In animal studies with tumor-bearing mice, SP94-LB@BA-MSN exhibited a satisfactory accumulation at the tumor site. The boron content reached 40.18 ± 5.41 ppm in the tumor site 4 h after injection, which was 8.12 and 15.51 times higher than those in mice treated with boronated phenylalanine and those treated with BA. For boron, the tumor-to-normal tissue ratio was 4.41 ± 1.13 and the tumor-to-blood ratio was 5.92 ± 0.45. These results indicated that nanoparticles delivered boron to the tumor site effectively while minimizing accumulation in normal tissues. In conclusion, this composite (SP94-LB@BA-MSN) shows great promise as a boron-containing delivery agent for the treatment of hepatocellular carcinoma using BNCT. These findings highlight the potential of MSNs in the field of BNCT.
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Affiliation(s)
- Hongyu Tang
- School of Pharmacy, China Medical University, Shenyang 110122, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Zhijie Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Haoyang Hao
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Weixian Luo
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Jingru Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Mengyao Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Mingxin Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Ziteng Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Ruyu Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Hao Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Fan Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Haojun Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Qiuyang Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Linwen Lv
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Junhui Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Wenxi Su
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Ranran Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Kui Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Ya-Nan Chang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Meng Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Lingna Zheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Xuesong Feng
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Juan Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Gengmei Xing
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
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9
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Phang YL, Jin JK, Zhang FL, Wang YF. Radical hydroboration for the synthesis of organoboron compounds. Chem Commun (Camb) 2024; 60:4275-4289. [PMID: 38566567 DOI: 10.1039/d4cc00398e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Organoboron compounds demonstrate diverse applications in the fields of organic synthesis, materials science, and medicinal chemistry. Compared to the conventional hydroboration reaction, radical hydroboration serves as an alternative approach for the synthesis of organoborons via different mechanisms. In radical hydroboration, a boryl radical is initially generated from homolytic cleavage of a B-H or a B-B bond, which is then added to an unsaturated double bond to deliver a carbon radical. Subsequent hydrogen atom transfer or reduction of the carbon radical to form a carbanion followed by protonation gave the final product. Over the past few years, numerous efforts have been made for efficient synthesis of boryl radicals and the expansion of substrate scope of the radical hydroboration reaction. Here, we discuss the recent advancement of radical hydroboration and its associated mechanisms. Numerous radical hydroboration strategies employing N-heterocyclic carbene borane, bis(pinacolato)diboron and pinacolborane as the boron source were illustrated. Thermochemical, photochemical and electrochemical strategies for the generation of boryl radicals were also discussed in detail.
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Affiliation(s)
- Yee Lin Phang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Ji-Kang Jin
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Feng-Lian Zhang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Yi-Feng Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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10
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Ma W, Wang Y, Xue Y, Wang M, Lu C, Guo W, Liu YH, Shu D, Shao G, Xu Q, Tu D, Yan H. Molecular engineering of AIE-active boron clustoluminogens for enhanced boron neutron capture therapy. Chem Sci 2024; 15:4019-4030. [PMID: 38487248 PMCID: PMC10935674 DOI: 10.1039/d3sc06222h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/01/2024] [Indexed: 03/17/2024] Open
Abstract
The development of boron delivery agents bearing an imaging capability is crucial for boron neutron capture therapy (BNCT), yet it has been rarely explored. Here we present a new type of boron delivery agent that integrates aggregation-induced emission (AIE)-active imaging and a carborane cluster for the first time. In doing so, the new boron delivery agents have been rationally designed by incorporating a high boron content unit of a carborane cluster, an erlotinib targeting unit towards lung cancer cells, and a donor-acceptor type AIE unit bearing naphthalimide. The new boron delivery agents demonstrate both excellent AIE properties for imaging purposes and highly selective accumulation in tumors. For example, at a boron delivery agent dose of 15 mg kg-1, the boron amount reaches over 20 μg g-1, and both tumor/blood (T/B) and tumor/normal cell (T/N) ratios reach 20-30 times higher than those required by BNCT. The neutron irradiation experiments demonstrate highly efficient tumor growth suppression without any observable physical tissue damage and abnormal behavior in vivo. This study not only expands the application scopes of both AIE-active molecules and boron clusters, but also provides a new molecular engineering strategy for a deep-penetrating cancer therapeutic protocol based on BNCT.
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Affiliation(s)
- Wenli Ma
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Yanyang Wang
- Department of Nuclear Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University Nanjing 210008 China
| | - Yilin Xue
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University Nanjing 210033 China
| | - Mengmeng Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Wanhua Guo
- Department of Nuclear Medicine, Nanjing Tongren Hospital, the Affiliated Hospital of Southeast University Medical School Nanjing 210033 China
| | - Yuan-Hao Liu
- Neuboron Therapy System Ltd. Xiamen 361028 China
- Nanjing University of Aeronautics and Astronautics Nanjing 210016 China
- Neuboron Medtech Ltd. Nanjing 211112 China
| | - Diyun Shu
- Neuboron Therapy System Ltd. Xiamen 361028 China
- Nanjing University of Aeronautics and Astronautics Nanjing 210016 China
- Neuboron Medtech Ltd. Nanjing 211112 China
| | - Guoqiang Shao
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University Nanjing 210033 China
| | - Qinfeng Xu
- Department of Nuclear Medicine, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing 210029 China
| | - Deshuang Tu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
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11
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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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12
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Wang Z, Lei R, Zhang Z, Chen Z, Zhang J, Mao M, Li J, Tang H, Li M, Luo X, Yang J, Yan R, Liu Q, Lv L, Chen K, Chang YN, Yuan H, Liu T, Tong J, Zhu L, Liang T, Zhang W, Li J, Xing G. Boron-Containing MOF Nanoparticles with Stable Metabolism in U87-MG Cells Combining Microdosimetry To Evaluate Relative Biological Effectiveness of Boron Neutron Capture Therapy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3232-3242. [PMID: 38221726 DOI: 10.1021/acsami.3c19113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Accurate prediction of the relative biological effectiveness (RBE) of boron neutron capture therapy (BNCT) is challenging. The therapy is different from other radiotherapy; the dynamic distribution of boron-containing compounds in tumor cells affects the therapeutic outcome considerably and hampers accurate measurement of the neutron-absorbed dose. Herein, we used boron-containing metal-organic framework nanoparticles (BMOFs) with high boron content to target U87-MG cells and maintain the concentration of the 10B isotope in cells. The content of boron in the cells could maintain 90% (60 ppm) within 20 min compared with that at the beginning; therefore, the accurate RBE of BNCT can be acquired. The effects of BNCT upon cells after neutron irradiation were observed, and the neutron-absorbed dose was obtained by Monte Carlo simulations. The RBE of BMOFs was 6.78, which was 4.1-fold higher than that of a small-molecule boron-containing agent (boric acid). The energy spectrum of various particles was analyzed by Monte Carlo simulations, and the RBE was verified theoretically. Our results suggested that the use of nanoparticle-based boron carriers in BNCT may have many advantages and that maintaining a stable boron distribution within cells may significantly improve the efficiency of BNCT.
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Affiliation(s)
- Zhijie Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Runhong Lei
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191, China
| | - Zizhu Zhang
- Beijing Nuclear Industry Hospital (BNIH), Beijing Capture Technology Co. Ltd. (BCTC), Beijing 100032, China
| | - Ziteng Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaxin Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meiru Mao
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiacheng Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongyu Tang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengyao Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianwei Luo
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingru Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruyu Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiuyang Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Linwen Lv
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kui Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ya-Nan Chang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Yuan
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tong Liu
- Beijing Nuclear Industry Hospital (BNIH), Beijing Capture Technology Co. Ltd. (BCTC), Beijing 100032, China
| | - Jianfei Tong
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
- Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Linbo Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
- Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Tianjiao Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
- Spallation Neutron Source Science Center, Dongguan 523803, China
| | - Weihua Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Juan Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gengmei Xing
- CAS Key Laboratory for Biomedical Effects of Nanomaterial and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Beijing 100049, China
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13
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Chen F, Guo W, Ma YN, Chen X. 9,9'-Bis- o-carboranes: synthesis and exploration of properties. Chem Commun (Camb) 2024; 60:614-617. [PMID: 38100063 DOI: 10.1039/d3cc05041f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A highly efficient Pd-catalyzed B(9)-H/B(9)-H oxidative dehydrogenation coupling of carboranes to synthesize 9,9'-bis-o-carboranes has been developed. The properties and derivatization of 9,9'-bis-o-carborane were also examined, which provided diverse bis-o-carborane derivatives and bis-nido-carborane.
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Affiliation(s)
- Feijing Chen
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Wenjing Guo
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Yan-Na Ma
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Xuenian Chen
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China.
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Henan Normal University, Xinxiang, Henan 453007, China
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14
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Khalil A, Adam MSS. Nucleoside Scaffolds and Carborane Clusters for Boron Neutron Capture Therapy: Developments and Future Perspective. Curr Med Chem 2024; 31:5739-5754. [PMID: 37818562 DOI: 10.2174/0109298673245020230929152030] [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: 01/13/2023] [Revised: 06/19/2023] [Accepted: 08/24/2023] [Indexed: 10/12/2023]
Abstract
Nucleosides containing carboranes are one of the most important boron delivery agents for boron neutron capture therapy, BNCT, which are good substrates of hTK1. The development of several nucleosides containing carboranes at early stages led to the discovery of the first generation of 3CTAs by incorporating a hydrocarbon spacer between the thymidine scaffold and carborane cluster and attaching dihydroxylpropyl group on the second carbon (C2) atom of the carborane cluster (e.g., N5 and N5-2OH). Phosphorylation rate, tumor cellular uptake, and retention have been evaluated in parallel to change the length of the tether arm of spacers in these compounds. Many attempts were reported and discussed to overcome the disadvantage of the first generation of 3CTAs by a) incorporating modified spacers between thymidine and carborane clusters, such as ethyleneoxide, polyhydroxyl, triazole, and tetrazole units, b) attaching hydrophilic groups at C2 of the carborane cluster, c) transforming lipophilic closo-carboranes to hydrophilic nidocarborane. The previous modifications represented the second generation of 3CTAs to improve the hydrogen bond formation with the hTK1 active site. Moreover, amino acid prodrugs were developed to enhance biological and physicochemical properties. The structure-activity relationship (SAR) of carboranyl thymidine analogues led to the roadmap for the development of the 3rd generation of the 3CTAs for BNCT.
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Affiliation(s)
- Ahmed Khalil
- Department of Chemistry, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Mohamed Shaker S Adam
- Department of Chemistry, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
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15
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Priya L, Mehta S, Gevariya D, Sharma R, Panjwani D, Patel S, Ahlawat P, Dharamsi A, Patel A. Quantum Dot-based Bio-conjugates as an Emerging Bioimaging Tool for Cancer Theranostic- A Review. Curr Drug Targets 2024; 25:241-260. [PMID: 38288834 DOI: 10.2174/0113894501283669240123105250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 06/05/2024]
Abstract
Cancer is the most widely studied disorder in humans, but proper treatment has not yet been developed for it. Conventional therapies, like chemotherapy, radiation therapy, and surgery, have been employed. Such therapies target not only cancerous cells but also harm normal cells. Conventional therapy does not result in specific targeting and hence leads to severe side effects. The main objective of this study is to explore the QDs. QDs are used as nanocarriers for diagnosis and treatment at the same time. They are based on the principle of theranostic approach. QDs can be conjugated with antibodies via various methods that result in targeted therapy. This results in their dual function as a diagnostic and therapeutic tool. Nanotechnology involving such nanocarriers can increase the specificity and reduce the side effects, leaving the normal cells unaffected. This review pays attention to different methods for synthesising QDs. QDs can be obtained using either organic method and synthetic methods. It was found that QDs synthesised naturally are more feasible than the synthetic process. Top or bottom-up approaches have also emerged for the synthesis of QDs. QDs can be conjugated with an antibody via non-covalent and covalent binding. Covalent binding is much more feasible than any other method. Zero-length coupling plays an important role as EDC (1-Ethyl-3-Ethyl dimethylaminopropyl)carbodiimide is a strong crosslinker and is widely used for conjugating molecules. Antibodies work as surface ligands that lead to antigen- antibody interaction, resulting in site-specific targeting and leaving behind the normal cells unaffected. Cellular uptake of the molecule is done by either passive targeting or active targeting. QDs are tiny nanocrystals that are inorganic in nature and vary in size and range. Based on different sizes, they emit light of specific wavelengths. They have their own luminescent and optical properties that lead to the monitoring, imaging, and transport of the therapeutic moiety to a variety of targets in the body. The surface of the QDs is modified to boost their functioning. They act as a tool for diagnosis, imaging, and delivery of therapeutic moieties. For improved therapeutic effects, nanotechnology leads the cellular uptake of nanoparticles via passive targeting or active targeting. It is a crucial platform that not only leads to imaging and diagnosis but also helps to deliver therapeutic moieties to specific sites. Therefore, this review concludes that there are numerous drawbacks to the current cancer treatment options, which ultimately result in treatment failure. Therefore, nanotechnology that involves such a nanocarrier will serve as a tool for overcoming all limitations of the traditional therapeutic approach. This approach helps in reducing the dose of anticancer agents for effective treatment and hence improving the therapeutic index. QDs can not only diagnose a disease but also deliver drugs to the cancerous site.
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Affiliation(s)
- Lipika Priya
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Smit Mehta
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Darshan Gevariya
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Raghav Sharma
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Drishti Panjwani
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Shruti Patel
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Priyanka Ahlawat
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Abhay Dharamsi
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
| | - Asha Patel
- Department of Pharmaceutics, Parul Institute of Pharmacy, Parul University, Vadodara, Gujarat-391760, India
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16
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Zavestovskaya IN, Kasatova AI, Kasatov DA, Babkova JS, Zelepukin IV, Kuzmina KS, Tikhonowski GV, Pastukhov AI, Aiyyzhy KO, Barmina EV, Popov AA, Razumov IA, Zavjalov EL, Grigoryeva MS, Klimentov SM, Ryabov VA, Deyev SM, Taskaev SY, Kabashin AV. Laser-Synthesized Elemental Boron Nanoparticles for Efficient Boron Neutron Capture Therapy. Int J Mol Sci 2023; 24:17088. [PMID: 38069412 PMCID: PMC10707216 DOI: 10.3390/ijms242317088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Boron neutron capture therapy (BNCT) is one of the most appealing radiotherapy modalities, whose localization can be further improved by the employment of boron-containing nanoformulations, but the fabrication of biologically friendly, water-dispersible nanoparticles (NPs) with high boron content and favorable physicochemical characteristics still presents a great challenge. Here, we explore the use of elemental boron (B) NPs (BNPs) fabricated using the methods of pulsed laser ablation in liquids as sensitizers of BNCT. Depending on the conditions of laser-ablative synthesis, the used NPs were amorphous (a-BNPs) or partially crystallized (pc-BNPs) with a mean size of 20 nm or 50 nm, respectively. Both types of BNPs were functionalized with polyethylene glycol polymer to improve colloidal stability and biocompatibility. The NPs did not initiate any toxicity effects up to concentrations of 500 µg/mL, based on the results of MTT and clonogenic assay tests. The cells with BNPs incubated at a 10B concentration of 40 µg/mL were then irradiated with a thermal neutron beam for 30 min. We found that the presence of BNPs led to a radical enhancement in cancer cell death, namely a drop in colony forming capacity of SW-620 cells down to 12.6% and 1.6% for a-BNPs and pc-BNPs, respectively, while the relevant colony-forming capacity for U87 cells dropped down to 17%. The effect of cell irradiation by neutron beam uniquely was negligible under these conditions. Finally, to estimate the dose and regimes of irradiation for future BNCT in vivo tests, we studied the biodistribution of boron under intratumoral administration of BNPs in immunodeficient SCID mice and recorded excellent retention of boron in tumors. The obtained data unambiguously evidenced the effect of a neutron therapy enhancement, which can be attributed to efficient BNP-mediated generation of α-particles.
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Affiliation(s)
- Irina N. Zavestovskaya
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russia; (M.S.G.); (V.A.R.)
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
| | - Anna I. Kasatova
- Laboratory of BNCT, Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia; (A.I.K.); (D.A.K.); (K.S.K.); (S.Y.T.)
| | - Dmitry A. Kasatov
- Laboratory of BNCT, Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia; (A.I.K.); (D.A.K.); (K.S.K.); (S.Y.T.)
| | - Julia S. Babkova
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow 117997, Russia
| | - Ivan V. Zelepukin
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow 117997, Russia
| | - Ksenya S. Kuzmina
- Laboratory of BNCT, Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia; (A.I.K.); (D.A.K.); (K.S.K.); (S.Y.T.)
| | - Gleb V. Tikhonowski
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
| | - Andrei I. Pastukhov
- LP3, Aix-Marseille University, CNRS, 13288 Marseille, France; (A.I.P.); (A.V.K.)
| | - Kuder O. Aiyyzhy
- A. M. Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia; (K.O.A.); (E.V.B.)
| | - Ekaterina V. Barmina
- A. M. Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia; (K.O.A.); (E.V.B.)
| | - Anton A. Popov
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
| | - Ivan A. Razumov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia; (I.A.R.); (E.L.Z.)
| | - Evgenii L. Zavjalov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia; (I.A.R.); (E.L.Z.)
| | - Maria S. Grigoryeva
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russia; (M.S.G.); (V.A.R.)
| | - Sergey M. Klimentov
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
| | - Vladimir A. Ryabov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russia; (M.S.G.); (V.A.R.)
| | - Sergey M. Deyev
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Moscow 115409, Russia (I.V.Z.); (G.V.T.); (A.A.P.); (S.M.K.); (S.M.D.)
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow 117997, Russia
- Laboratory of Molecular Pharmacology, Institute of Molecular Theranostics, Sechenov First Moscow State Medical University (Sechenov University), Moscow 119991, Russia
- “Biomarker” Research Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Sergey Yu. Taskaev
- Laboratory of BNCT, Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia; (A.I.K.); (D.A.K.); (K.S.K.); (S.Y.T.)
| | - Andrei V. Kabashin
- LP3, Aix-Marseille University, CNRS, 13288 Marseille, France; (A.I.P.); (A.V.K.)
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17
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Okada S, Nishimura K, Ainaya Q, Shiraishi K, Anufriev SA, Sivaev IB, Sakurai Y, Suzuki M, Yokoyama M, Nakamura H. Development of a Gadolinium-Boron-Conjugated Albumin for MRI-Guided Neutron Capture Therapy. Mol Pharm 2023; 20:6311-6318. [PMID: 37909734 DOI: 10.1021/acs.molpharmaceut.3c00726] [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] [Indexed: 11/03/2023]
Abstract
Noninvasive monitoring of boron agent biodistribution is required in advance of neutron capture therapy. In this study, we developed a gadolinium-boron-conjugated albumin (Gd-MID-BSA) for MRI-guided neutron capture therapy. Gd-MID-BSA was prepared by labeling bovine serum albumin with a maleimide-functionalized gadolinium complex and a maleimide-functionalized closo-dodecaborate orthogonally. The accumulation of Gd-MID-BSA in tumors in CT26 tumor-bearing mice reached a maximum at 24 h after the injection, as confirmed by T1-based MRI and biodistribution analysis using inductively coupled plasma optical emission spectrometry. The concentrations of boron and gadolinium in the tumors exceeded the thresholds required for boron neutron capture therapy (BNCT) and gadolinium neutron capture therapy (GdNCT), respectively. The boron concentration ratios of tumor to blood and tumor to normal tissues satisfied the clinical criteria, indicating the reduction of undesired nuclear reactions of endogenous nuclei. The molar ratio of boron to gadolinium in the tumor was close to that of Gd-MID-BSA, demonstrating that the accumulation of Gd-MID-BSA in the tumor can be evaluated by MRI. Thermal neutron irradiation with Gd-MID-BSA resulted in significant suppression of tumor growth compared to the group injected with a boron-conjugated albumin without gadolinium (MID-BSA). The neutron irradiation with Gd-MID-BSA did not cause apparent side effects. These results demonstrate that the conjugation of gadolinium and boron within the albumin molecule offers a novel strategy for enhancing the therapeutic effect of BNCT and the potential of MRI-guided neutron capture therapy as a promising treatment for malignant tumors.
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Affiliation(s)
- Satoshi Okada
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan
| | - Kai Nishimura
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan
| | - Qarri Ainaya
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan
| | - Kouichi Shiraishi
- Division of Medical Engineering, Research Center for Medical Sciences, The Jikei University School of Medicine, 163-1 Kashiwashita, Kashiwa, Chiba 277-8567, Japan
| | - Sergey A Anufriev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
| | - Igor B Sivaev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
| | - Yoshinori Sakurai
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-nishi, Kumatori, Sennan, Osaka 590-0494, Japan
| | - Minoru Suzuki
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-nishi, Kumatori, Sennan, Osaka 590-0494, Japan
| | - Masayuki Yokoyama
- Division of Medical Engineering, Research Center for Medical Sciences, The Jikei University School of Medicine, 163-1 Kashiwashita, Kashiwa, Chiba 277-8567, Japan
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan
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18
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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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19
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Gruzdev DA, Telegina AA, Levit GL, Ezhikova MA, Kodess MI, Krasnov VP. Synthesis of Charge-Compensated nido-Carboranyl Derivatives of Sulfur-Containing Amino Acids and Biotin. J Org Chem 2023; 88:14022-14032. [PMID: 37737724 DOI: 10.1021/acs.joc.3c01569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
A new group of charge-compensated nido-carboranyl derivatives of sulfur-containing amino acids and biotin has been synthesized in which the boron atom in position 9 or 10 of carborane is attached to a positively charged sulfur atom. The possibilities of obtaining symmetrical B(10)-substituted and asymmetric B(9)-substituted nido-carboranes were studied. Using the example of (S)-methionine and D-biotin derivatives, water-soluble S-substituted charge-compensated nido-carboranes with free functional groups were prepared. The results obtained open up prospects for the development of potential boron delivery agents for BNCT as well as new bioactive compounds containing a negatively charged nido-carboranyl fragment bearing a positive charge on the sulfur atom associated with the boron cluster.
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Affiliation(s)
- Dmitry A Gruzdev
- Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 22/20, S. Kovalevskoy St., Ekaterinburg 620108, Russia
| | - Angelina A Telegina
- Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 22/20, S. Kovalevskoy St., Ekaterinburg 620108, Russia
| | - Galina L Levit
- Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 22/20, S. Kovalevskoy St., Ekaterinburg 620108, Russia
| | - Marina A Ezhikova
- Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 22/20, S. Kovalevskoy St., Ekaterinburg 620108, Russia
| | - Mikhail I Kodess
- Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 22/20, S. Kovalevskoy St., Ekaterinburg 620108, Russia
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 22/20, S. Kovalevskoy St., Ekaterinburg 620108, Russia
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20
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Zhang X, Lin Y, Hosmane NS, Zhu Y. Nanostructured boron agents for boron neutron capture therapy: a review of recent patents. MEDICAL REVIEW (2021) 2023; 3:425-443. [PMID: 38283251 PMCID: PMC10811353 DOI: 10.1515/mr-2023-0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/16/2023] [Indexed: 01/30/2024]
Abstract
Boron neutron capture therapy (BNCT) is a potential radiation therapy modality for cancer, and tumor-targeted stable boron-10 (10B) delivery agents are an important component of BNCT. Currently, two low-molecular-weight boron-containing compounds, sodium mercaptoundecahydro-closo-dodecaborate (BSH) and boronophenylalanine (BPA), are mainly used in BNCT. Although both have suboptimal tumor selectivity, they have shown some therapeutic benefit in patients with high-grade glioma and several other tumors. To improve the efficacy of BNCT, great efforts have been devoted for the development of new boron delivery agents with better uptake and favorable pharmacokinetic profiles. This article reviews the application and research progress of boron nanomaterials as boron carriers in boron neutron capture therapy and hopes to stimulate people's interest in nanomaterial-based delivery agents by summarizing various kinds of boron nanomaterial patents disclosed in the past decade.
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Affiliation(s)
- Xiyin Zhang
- Shenzhen HEC Industrial Development Co., Ltd., Shenzhen, Guangdong Province, China
| | - Yusheng Lin
- Shenzhen HEC Industrial Development Co., Ltd., Shenzhen, Guangdong Province, China
| | - Narayan S. Hosmane
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL, USA
| | - Yinghuai Zhu
- Sunshine Lake Pharma Co. Ltd, Dongguan, Guangdong Province, China
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21
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Avdeeva VV, Nikiforova SE, Malinina EA, Sivaev IB, Kuznetsov NT. Composites and Materials Prepared from Boron Cluster Anions and Carboranes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6099. [PMID: 37763377 PMCID: PMC10533147 DOI: 10.3390/ma16186099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Here, we present composites and materials that can be prepared starting with boron hydride cluster compounds (decaborane, decahydro-closo-decaborate and dodecahydro-closo-dodecaborate anions and carboranes). Recent examples of their utilization as boron protective coatings including using them to synthesize boron carbide, boron nitride, metal borides, metal-containing composites, and neutron shielding materials are discussed. The data are generalized demonstrate the versatile application of materials based on boron cluster anions and carboranes in various fields.
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Affiliation(s)
- Varvara V. Avdeeva
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskii Av., Moscow 119991, Russia; (S.E.N.); (E.A.M.); (N.T.K.)
| | - Svetlana E. Nikiforova
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskii Av., Moscow 119991, Russia; (S.E.N.); (E.A.M.); (N.T.K.)
| | - Elena A. Malinina
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskii Av., Moscow 119991, Russia; (S.E.N.); (E.A.M.); (N.T.K.)
| | - Igor B. Sivaev
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., Moscow 119991, Russia;
- Basic Department of Chemistry of Innovative Materials and Technologies, Plekhanov Russian University of Economics, 36 Stremyannyi Line, Moscow 117997, Russia
| | - Nikolay T. Kuznetsov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskii Av., Moscow 119991, Russia; (S.E.N.); (E.A.M.); (N.T.K.)
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22
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Coghi P, Li J, Hosmane NS, Zhu Y. Next generation of boron neutron capture therapy (BNCT) agents for cancer treatment. Med Res Rev 2023; 43:1809-1830. [PMID: 37102375 DOI: 10.1002/med.21964] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 03/27/2023] [Accepted: 04/12/2023] [Indexed: 04/28/2023]
Abstract
Boron neutron capture therapy (BNCT) is one of the most promising treatments among neutron capture therapies due to its long-term clinical application and unequivocally obtained success during clinical trials. Boron drug and neutron play an equivalent crucial role in BNCT. Nevertheless, current clinically used l-boronophenylalanine (BPA) and sodium borocaptate (BSH) suffer from large uptake dose and low blood to tumor selectivity, and that initiated overwhelm screening of next generation of BNCT agents. Various boron agents, such as small molecules and macro/nano-vehicles, have been explored with better success. In this featured article, different types of agents are rationally analyzed and compared, and the feasible targets are shared to present a perspective view for the future of BNCT in cancer treatment. This review aims at summarizing the current knowledge of a variety of boron compounds, reported recently, for the application of BCNT.
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Affiliation(s)
- Paolo Coghi
- School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Jinxin Li
- School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Narayan S Hosmane
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois, USA
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23
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Mahfouz N, Abi-Ghaida F, Kotob W, Mehdi A, Naoufal D. Selective Functionalization of Carbonyl Closo-Decaborate [2-B 10H 9CO] - with Building Block Properties via Grignard Reagents. Molecules 2023; 28:6076. [PMID: 37630327 PMCID: PMC10458521 DOI: 10.3390/molecules28166076] [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: 07/06/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
A green, fast and selective approach for the synthesis of mono-substituted closo-decaborate derivatives [2-B10H9COR]2- has been established via a nucleophilic addition reaction between the carbonyl derivative of closo-decaborate [2-B10H9CO]- and the corresponding Grignard reagent RMgX, where R is the ethyl, iso-propyl, pentyl, allyl, vinyl and propynyl groups. This approach is accomplished under mild conditions with 70-80% yields. The significance of these derivative is their ability to constitute building blocks for polymeric integration via the allyl, vinyl and propynyl substituents. All products were characterized by 11B, 1H and 13C NMR, elemental analysis and mass spectrometry.
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Affiliation(s)
- Nadine Mahfouz
- Inorganic and Organometallic Coordination Chemistry Laboratory LCIO, Faculty of Sciences, Lebanese University, Beirut P.O. Box 6573, Lebanon; (N.M.); (W.K.)
- Institut Charles Gerhardt ICGM, CNRS, ENSCM, Université de Montpellier, 34090 Montpellier, France
| | - Fatima Abi-Ghaida
- Inorganic and Organometallic Coordination Chemistry Laboratory LCIO, Faculty of Sciences, Lebanese University, Beirut P.O. Box 6573, Lebanon; (N.M.); (W.K.)
| | - Wael Kotob
- Inorganic and Organometallic Coordination Chemistry Laboratory LCIO, Faculty of Sciences, Lebanese University, Beirut P.O. Box 6573, Lebanon; (N.M.); (W.K.)
| | - Ahmad Mehdi
- Institut Charles Gerhardt ICGM, CNRS, ENSCM, Université de Montpellier, 34090 Montpellier, France
| | - Daoud Naoufal
- Inorganic and Organometallic Coordination Chemistry Laboratory LCIO, Faculty of Sciences, Lebanese University, Beirut P.O. Box 6573, Lebanon; (N.M.); (W.K.)
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24
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Yamana K, Kawasaki R, Kondo K, Hirano H, Kawamura S, Sanada Y, Bando K, Tabata A, Azuma H, Takata T, Sakurai Y, Tanaka H, Kodama T, Kawamoto S, Nagasaki T, Ikeda A. HER-2-targeted boron neutron capture therapy using an antibody-conjugated boron nitride nanotube/β-1,3-glucan complex. NANOSCALE ADVANCES 2023; 5:3857-3861. [PMID: 37496630 PMCID: PMC10367957 DOI: 10.1039/d3na00028a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/23/2023] [Indexed: 07/28/2023]
Abstract
The development of boron agents with integrated functionality, including biocompatibility, high boron content, and cancer cell targeting, is desired to exploit the therapeutic efficacy of boron neutron capture therapy (BNCT). Here, we report the therapeutic efficacy of BNCT using a HER-2-targeted antibody-conjugated boron nitride nanotube/β-1,3-glucan complex. The anticancer effect of BNCT using our system was 30-fold that of the clinically available boron agent l-BPA/fructose complex.
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Affiliation(s)
- Keita Yamana
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering 1-4-1 Kagamiyama Higashi-Hiroshima City 739-8527 Japan
| | - Riku Kawasaki
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering 1-4-1 Kagamiyama Higashi-Hiroshima City 739-8527 Japan
| | - Kousuke Kondo
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering 1-4-1 Kagamiyama Higashi-Hiroshima City 739-8527 Japan
| | - Hidetoshi Hirano
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering 1-4-1 Kagamiyama Higashi-Hiroshima City 739-8527 Japan
| | - Shogo Kawamura
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering 1-4-1 Kagamiyama Higashi-Hiroshima City 739-8527 Japan
| | - Yu Sanada
- Institute for Integrated Radiation and Nuclear Science, Kyoto University 2, Asahiro-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
| | - 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 2, Asahiro-Nishi, Kumatori-cho, Sennan-gun Osaka 590-0494 Japan
| | - Yoshinori Sakurai
- Institute for Integrated Radiation and Nuclear Science, Kyoto University 2, Asahiro-Nishi, Kumatori-cho, Sennan-gun Osaka 590-0494 Japan
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University 2, Asahiro-Nishi, Kumatori-cho, Sennan-gun Osaka 590-0494 Japan
| | - Tomoki Kodama
- Program of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8530 Japan
| | - Seiji Kawamoto
- Program of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8530 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 1-4-1 Kagamiyama Higashi-Hiroshima City 739-8527 Japan
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25
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Balcer E, Sobiech M, Giebułtowicz J, Sochacka M, Luliński P. Molecularly Imprinted Polymers Specific towards 4-Borono-L-phenylalanine-Synthesis Optimization, Theoretical Analysis, Morphology Investigation, Cytotoxicity, and Release Studies. Polymers (Basel) 2023; 15:3149. [PMID: 37514538 PMCID: PMC10386447 DOI: 10.3390/polym15143149] [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: 06/28/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
The aim of this study was to create molecularly imprinted polymers (MIPs) that are specific towards 4-borono-L-phenylalanine (BPA) to serve as boron compound carriers. The honeycomb-like MIPs were characterized in the matter of adsorption properties, morphology, structure, and cytotoxicity towards A549 and V79-4 cell lines. The honeycomb-like MIP composed from methacrylic acid and ethylene glycol dimethacrylate was characterized by a binding capacity of 330.4 ± 4.6 ng g-1 and an imprinting factor of 2.04, and its ordered, porous morphology was confirmed with scanning electron microscopy. The theoretical analysis revealed that the coexistence of different anionic forms of the analyte in basic solution might lower the binding capacity of the MIP towards BPA. The release profiles from the model phosphate buffer saline showed that only 0 to 4.81% of BPA was released from the MIP within the time frame of two hours, furthermore, the obtained material was considered non-cytotoxic towards tested cell lines. The results prove that MIPs can be considered as effective BPA delivery systems for biomedical applications and should be investigated in further studies.
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Affiliation(s)
- Emilia Balcer
- Department of Drug Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
- Radiochemistry Team, Reactor Research Division, Nuclear Facilities Operations Department, National Centre for Nuclear Research, Sołtana 7, Świerk, 05-400 Otwock, Poland
| | - Monika Sobiech
- Department of Organic and Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Joanna Giebułtowicz
- Department of Drug Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Małgorzata Sochacka
- Department of Drug Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Luliński
- Department of Organic and Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
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26
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Oloo SO, Smith KM, Vicente MDGH. Multi-Functional Boron-Delivery Agents for Boron Neutron Capture Therapy of Cancers. Cancers (Basel) 2023; 15:3277. [PMID: 37444386 DOI: 10.3390/cancers15133277] [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: 04/25/2023] [Revised: 06/03/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Boron neutron capture therapy (BNCT) is a binary cancer treatment that involves the irradiation of 10B-containing tumors with low-energy neutrons (thermal or epithermal). The alpha particles and recoiling Li nuclei that are produced in the 10B-capture nuclear reaction are high-linear-energy transfer particles that destroy boron-loaded tumor cells; therefore, BNCT has the potential to be a localized therapeutic modality. Two boron-delivery agents have been used in clinical trials of BNCT in patients with malignant brain tumors, cutaneous melanoma, or recurrent tumors of the head and neck region, demonstrating the potential of BNCT in the treatment of difficult cancers. A variety of potentially highly effective boron-delivery agents have been synthesized in the past four decades and tested in cells and animal models. These include boron-containing nucleosides, peptides, proteins, polyamines, porphyrins, liposomes, monoclonal antibodies, and nanoparticles of various types. The most promising agents are multi-functional boronated molecules and nanoparticles functionalized with tumor cell-targeting moieties that increase their tumor selectivity and contain a radiolabel or fluorophore to allow quantification of 10B-biodistribution and treatment planning. This review discusses multi-functional boron agents reported in the last decade, but their full potential can only be ascertained after their evaluation in BNCT clinical trials.
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Affiliation(s)
- Sebastian O Oloo
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Kevin M Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
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27
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Marforio TD, Mattioli EJ, Zerbetto F, Calvaresi M. Exploiting Blood Transport Proteins as Carborane Supramolecular Vehicles for Boron Neutron Capture Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111770. [PMID: 37299673 DOI: 10.3390/nano13111770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/12/2023]
Abstract
Carboranes are promising agents for applications in boron neutron capture therapy (BNCT), but their hydrophobicity prevents their use in physiological environments. Here, by using reverse docking and molecular dynamics (MD) simulations, we identified blood transport proteins as candidate carriers of carboranes. Hemoglobin showed a higher binding affinity for carboranes than transthyretin and human serum albumin (HSA), which are well-known carborane-binding proteins. Myoglobin, ceruloplasmin, sex hormone-binding protein, lactoferrin, plasma retinol-binding protein, thyroxine-binding globulin, corticosteroid-binding globulin and afamin have a binding affinity comparable to transthyretin/HSA. The carborane@protein complexes are stable in water and characterized by favorable binding energy. The driving force in the carborane binding is represented by the formation of hydrophobic interactions with aliphatic amino acids and BH-π and CH-π interactions with aromatic amino acids. Dihydrogen bonds, classical hydrogen bonds and surfactant-like interactions also assist the binding. These results (i) identify the plasma proteins responsible for binding carborane upon their intravenous administration, and (ii) suggest an innovative formulation for carboranes based on the formation of a carborane@protein complex prior to the administration.
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Affiliation(s)
- Tainah Dorina Marforio
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, Italy
| | - Edoardo Jun Mattioli
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, Italy
| | - Francesco Zerbetto
- 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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Zaitsev AV, Kiselev SS, Smol'yakov AF, Fedorov YV, Kononova EG, Borisov YA, Ol'shevskaya VA. BODIPY derivatives modified with carborane clusters: synthesis, characterization and DFT studies. Org Biomol Chem 2023; 21:4084-4094. [PMID: 37128951 DOI: 10.1039/d3ob00255a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
An efficient approach for the preparation of 3,5-dicarborane-substituted BODIPY conjugates was developed via the functionalization of 3,5-dibromo-8-pentafluorophenyl-BODIPY with neutral and anionic carborane S-nucleophiles. It was found that 3,5-dicarborane-substituted BODIPYs could be easily modified with a third carborane cluster using SNAr substitution reactions of the para-fluorine atom in the meso-pentafluorophenyl BODIPY substituent with the corresponding carborane S-nucleophile affording boron-enriched BODIPYs in good yields. The influence of bromine atom substitution with carborane moieties on the position of absorption and fluorescence bands and the fluorescence quantum yields of the prepared BODIPYs were analyzed. The crystal structures of BODIPYs 4 and 8 were investigated. Density functional theory methods (DFT wb97xd/6-31G* and wb97xd/lanl2dz) were performed to study the geometrical structures, electronic characteristics, the highest occupied and the lowest unoccupied molecular orbitals (HOMOs and LUMOs) and other chemical descriptors of the synthesized compounds.
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Affiliation(s)
- Andrei V Zaitsev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
| | - Sergey S Kiselev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
| | - Alexander F Smol'yakov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
- Plekhanov Russian University of Economics, Stremyanny per. 36, 117997 Moscow, Russian Federation
| | - Yury V Fedorov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
| | - Elena G Kononova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
| | - Yurii A Borisov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
| | - Valentina A Ol'shevskaya
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28, bld. 1 Vavilova St., 119334 Moscow, Russian Federation.
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29
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Laird M, Matsumoto K, Higashi Y, Komatsu A, Raitano A, Morrison K, Suzuki M, Tamanoi F. Organosilica nanoparticles containing sodium borocaptate (BSH) provide new prospects for boron neutron capture therapy (BNCT): efficient cellular uptake and enhanced BNCT efficacy. NANOSCALE ADVANCES 2023; 5:2537-2546. [PMID: 37143818 PMCID: PMC10153076 DOI: 10.1039/d2na00839d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/20/2023] [Indexed: 05/06/2023]
Abstract
Boron neutron capture therapy (BNCT), a method based on the fission of boron-10 upon neutron irradiation, has emerged as an attractive option for radiation therapy. To date, the main drugs used in BNCT are 4-boronophenylalanine (BPA) and sodium borocaptate (BSH). While BPA has been extensively tested in clinical trials, the use of BSH has been limited, mainly due to its poor cellular uptake. Here, we describe a novel type of mesoporous silica-based nanoparticle containing BSH covalently attached to a nanocarrier. Synthesis and characterization of these nanoparticles (BSH-BPMO) are presented. The synthetic strategy involves a click thiol-ene reaction with the boron cluster, providing hydrolytically stable linkage with the BSH in four steps. The BSH-BPMO nanoparticles were efficiently taken up into cancer cells and accumulated in the perinuclear region. Inductively coupled plasma (ICP) measurements of boron uptake in cells highlight the important role of the nanocarrier in the enhancement of boron internalization. BSH-BPMO nanoparticles were also taken up and distributed throughout tumour spheroids. BNCT efficacy was examined by the neutron exposure of the tumour spheroids. BSH-BPMO loaded spheroids were completely destroyed upon neutron irradiation. In contrast, neutron irradiation of tumour spheroids loaded with BSH or BPA resulted in significantly less spheroid shrinkage. The significant difference in BNCT efficacy of the BSH-BPMO was correlated with the improved boron uptake via the nanocarrier. Overall, these results demonstrate the critical role of the nanocarrier in BSH internalization and the enhanced BNCT efficacy of the BSH-BPMO compared with BSH and BPA, two drugs used in BNCT clinical trials.
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Affiliation(s)
- Mathilde Laird
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Kyoto 606-8501 Japan
| | - Kotaro Matsumoto
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Kyoto 606-8501 Japan
| | - Yuya Higashi
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Kyoto 606-8501 Japan
| | - Aoi Komatsu
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Kyoto 606-8501 Japan
| | - Art Raitano
- TAE Life Sciences, Drug Development Division Santa Monica CA 90404 USA
| | - Kendall Morrison
- TAE Life Sciences, Drug Development Division Santa Monica CA 90404 USA
| | - Minoru Suzuki
- Institute for Integrated Radiation and Nuclear Science, Kyoto University Kumatori 590-0494 Japan
| | - Fuyuhiko Tamanoi
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Kyoto 606-8501 Japan
- Department of Microbiology, Immunology and Molecular Genetics, University of California Los Angeles USA
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30
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Vakhrushev AV, Gruzdev DA, Demin AM, Levit GL, Krasnov VP. Synthesis of Novel Carborane-Containing Derivatives of RGD Peptide. Molecules 2023; 28:molecules28083467. [PMID: 37110700 PMCID: PMC10143838 DOI: 10.3390/molecules28083467] [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: 03/20/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Short peptides containing the Arg-Gly-Asp (RGD) fragment can selectively bind to integrins on the surface of tumor cells and are attractive transport molecules for the targeted delivery of therapeutic and diagnostic agents to tumors (for example, glioblastoma). We have demonstrated the possibility of obtaining the N- and C-protected RGD peptide containing 3-amino-closo-carborane and a glutaric acid residue as a linker fragment. The resulting carboranyl derivatives of the protected RGD peptide are of interest as starting compounds in the synthesis of unprotected or selectively protected peptides, as well as building blocks for preparation of boron-containing derivatives of the RGD peptide of a more complex structure.
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Affiliation(s)
- Alexander V Vakhrushev
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Dmitry A Gruzdev
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Alexander M Demin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Galina L Levit
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
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31
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Flieger S, Takagaki M, Kondo N, Lutz MR, Gupta Y, Ueda H, Sakurai Y, Moran G, Kempaiah P, Hosmane N, Suzuki M, Becker DP. Carborane-Containing Hydroxamate MMP Ligands for the Treatment of Tumors Using Boron Neutron Capture Therapy (BNCT): Efficacy without Tumor Cell Entry. Int J Mol Sci 2023; 24:ijms24086973. [PMID: 37108137 PMCID: PMC10139035 DOI: 10.3390/ijms24086973] [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: 12/19/2022] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
New carborane-bearing hydroxamate matrix metalloproteinase (MMP) ligands have been synthesized for boron neutron capture therapy (BNCT) with nanomolar potency against MMP-2, -9 and -13. New analogs are based on MMP inhibitor CGS-23023A, and two previously reported MMP ligands 1 (B1) and 2 (B2) were studied in vitro for BNCT activity. The boronated MMP ligands 1 and 2 showed high in vitro tumoricidal effects in an in vitro BNCT assay, exhibiting IC50 values for 1 and 2 of 2.04 × 10-2 mg/mL and 2.67 × 10-2 mg/mL, respectively. The relative killing effect of 1 to L-boronophenylalanine (BPA) is 0.82/0.27 = 3.0, and that of 2 is 0.82/0.32 = 2.6, whereas the relative killing effect of 4 is comparable to boronophenylalanine (BPA). The survival fraction of 1 and 2 in a pre-incubation boron concentration at 0.143 ppm 10B and 0.101 ppm 10B, respectively, were similar, and these results suggest that 1 and 2 are actively accumulated through attachment to the Squamous cell carcinoma (SCC)VII cells. Compounds 1 and 2 very effectively killed glioma U87 delta EGFR cells after BNCT. This study is noteworthy in demonstrating BNCT efficacy through binding to MMP enzymes overexpressed at the surface of the tumor cell without tumor cell penetration.
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Affiliation(s)
- Sebastian Flieger
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60660, USA
| | - Mao Takagaki
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihoga-oka, Ibaraki-City 567-0047, Osaka, Japan
| | - Natsuko Kondo
- Particle Radiation Oncology Research Center, Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-Nishi, Kumatori, Sennan-gun 590-0494, Osaka, Japan
| | - Marlon R Lutz
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60660, USA
| | - Yash Gupta
- Department of Medicine, Infectious Diseases, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Hiroki Ueda
- Particle Radiation Oncology Research Center, Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-Nishi, Kumatori, Sennan-gun 590-0494, Osaka, Japan
| | - Yoshinori Sakurai
- Particle Radiation Oncology Research Center, Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-Nishi, Kumatori, Sennan-gun 590-0494, Osaka, Japan
| | - Graham Moran
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60660, USA
| | - Prakasha Kempaiah
- Department of Medicine, Infectious Diseases, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Narayan Hosmane
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA
| | - Minoru Suzuki
- Particle Radiation Oncology Research Center, Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2-1010 Asashiro-Nishi, Kumatori, Sennan-gun 590-0494, Osaka, Japan
| | - Daniel P Becker
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60660, USA
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32
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Beck-Sickinger AG, Becker DP, Chepurna O, Das B, Flieger S, Hey-Hawkins E, Hosmane N, Jalisatgi SS, Nakamura H, Patil R, Vicente MDGH, Viñas C. New Boron Delivery Agents. Cancer Biother Radiopharm 2023; 38:160-172. [PMID: 36350709 PMCID: PMC10325817 DOI: 10.1089/cbr.2022.0060] [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] [Indexed: 11/11/2022] Open
Abstract
This proceeding article compiles current research on the development of boron delivery drugs for boron neutron capture therapy that was presented and discussed at the National Cancer Institute (NCI) Workshop on Neutron Capture Therapy that took place on April 20-22, 2022. The most used boron sources are icosahedral boron clusters attached to peptides, proteins (such as albumin), porphyrin derivatives, dendrimers, polymers, and nanoparticles, or encapsulated into liposomes. These boron clusters and/or carriers can be labeled with contrast agents allowing for the use of imaging techniques, such as PET, SPECT, and fluorescence, that enable quantification of tumor-localized boron and their use as theranostic agents.
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Affiliation(s)
| | - Daniel P. Becker
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, Illinois, USA
| | - Oksana Chepurna
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Bhaskar Das
- Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, New York, USA
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Surgery, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Sebastian Flieger
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, Illinois, USA
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Leipzig, Germany
| | - Narayan Hosmane
- Department of Chemistry & Biochemistry, Northern Illinois University, DeKalb, Illinois, USA
| | | | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan
| | - Rameshwar Patil
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - Clara Viñas
- Institut de Ciencia de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Spain
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33
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Matveev EY, Avdeeva VV, Kubasov AS, Zhizhin KY, Malinina EA, Kuznetsov NT. Synthesis and Structures of Lead(II) Complexes with Hydroxy-Substituted Closo-Decaborate Anions. INORGANICS 2023. [DOI: 10.3390/inorganics11040144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
Mixed-ligand lead(II) complexes with 2,2′-bipyridyl and [B10H9OH]2− or monosubstituted hydroxy-substituted closo-decaborate anions with a pendant hydroxy group, separated from the boron cage by an alkoxylic spacer of different lengths [B10H9O(CH2)xO(CH2)2OH]]2− (x = 2 or 5) have been synthesized. Compounds have been characterized by IR and multinuclear NMR spectroscopies. The structures of binuclear complex [Pb(bipy)2[B10H9OH]]2·CH3CN (1·CH3CN), mononuclear complex [Pb(bipy)2[B10H9O(CH2)2O(CH2)2OH]]·0.5bipy·CH3CN (2·0.5bipy·CH3CN), and polymeric complex [Pb(bipy)[B10H9O(CH2)5O(CH2)2OH]]n (3) have been determined by single-crystal X-ray diffraction. In all three compounds, the co-ordination polyhedra of lead(II) are formed by N atoms from two bipy molecules, O atoms of the substituent attached to the boron cage, and BH groups of the boron cage.
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34
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Attia AAA, Lupan A, King RB. Polyhedral Dicobaltadithiaboranes and Dicobaltdiselenaboranes as Examples of Bimetallic Nido Structures without Bridging Hydrogens. Molecules 2023; 28:molecules28072988. [PMID: 37049751 PMCID: PMC10095674 DOI: 10.3390/molecules28072988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023] Open
Abstract
The geometries and energetics of the n-vertex polyhedral dicobaltadithiaboranes and dicobaltadiselenaboranes Cp2Co2E2Bn−4Hn−4 (E = S, Se; n = 8 to 12) have been investigated via the density functional theory. Most of the lowest-energy structures in these systems are generated from the (n + 1)-vertex most spherical closo deltahedra by removal of a single vertex, leading to a tetragonal, pentagonal, or hexagonal face depending on the degree of the vertex removed. In all of these low-energy structures, the chalcogen atoms are located at the vertices of the non-triangular face. Alternatively, the central polyhedron in most of the 12-vertex structures can be derived from a Co2E2B8 icosahedron with adjacent chalcogen (E) vertices by breaking the E–E edge and 1 or more E–B edges to create a hexagonal face. Examples of the arachno polyhedra with two tetragonal and/or pentagonal faces derived from the removal of two vertices from isocloso deltahedra were found among the set of lowest-energy Cp2Co2E2Bn−4Hn−4 (E = S, Se; n = 8 and 12) structures.
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35
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Ren H, Zhang P, Xu J, Ma W, Tu D, Lu CS, Yan H. Direct B-H Functionalization of Icosahedral Carboranes via Hydrogen Atom Transfer. J Am Chem Soc 2023; 145:7638-7647. [PMID: 36946888 DOI: 10.1021/jacs.3c01314] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The efficient and selective functionalization of icosahedral carboranes (C2B10H12) at the boron vertexes is a long-standing challenge owing to the presence of 10 inert B-H bonds in a similar chemical environment. Herein, we report a new reaction paradigm for direct B-H functionalization of icosahedral carboranes via B-H homolysis enabled by a nitrogen-centered radical-mediated hydrogen atom transfer (HAT) strategy. Both the HAT process of the carborane B-H bond and the resulting boron-centered carboranyl radical intermediate have been confirmed experimentally. The reaction occurs at the most electron-rich boron vertex with the lowest B-H bond dissociation energy (BDE). Using this strategy, diverse carborane derivatization, including thiolation, selenation, alkynylation, alkenylation, cyanation, and halogenation, have been achieved in satisfactory yields under a photoinitiated condition in a metal-free and redox-neutral fashion. Moreover, the synthetic utility of the current protocol was also demonstrated by both the scale-up reaction and the construction of carborane-based functional molecules. Therefore, this methodology opens a radical pathway to carborane functionalization, which is distinct from the B-H heterolytic mechanism in the traditional strategies.
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Affiliation(s)
- Hongyuan Ren
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ping Zhang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jingkai Xu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wenli Ma
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Deshuang Tu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Chang-Sheng Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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36
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Zhang CY, Cao K, Liu D, Yang HB, Teng CC, Li B, Yang J. Iridium-catalyzed selective amination of B(4)-H for the synthesis of o-carborane-fused indolines. Dalton Trans 2023; 52:2933-2936. [PMID: 36815456 DOI: 10.1039/d3dt00316g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
An iridium-catalyzed selective amination of B(4)-H via dehydrogenative cross-coupling of B-H/N-H bonds for the synthesis of o-carborane-fused indolines has been developed for the first time. Various types of unprecedented o-carborane-fused indolines have been synthesized, which would be potential candidates for applications in drug discovery, pharmaceutical chemistry and functional materials. This work offers a valuable reference for the designing and synthesis of o-carborane-fused heterocycles.
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Affiliation(s)
- Cai-Yan Zhang
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan, P. R. China.
| | - Ke Cao
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan, P. R. China.
| | - Dechun Liu
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan, P. R. China.
| | - Han-Bo Yang
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan, P. R. China.
| | - Chao-Chao Teng
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan, P. R. China.
| | - Bo Li
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, P. R. China
| | - Junxiao Yang
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan, P. R. China.
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37
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Moghaddasi L, Bezak E. An Integrated Monte Carlo Model for Heterogeneous Glioblastoma Treated with Boron Neutron Capture Therapy. Cancers (Basel) 2023; 15:1550. [PMID: 36900341 PMCID: PMC10001318 DOI: 10.3390/cancers15051550] [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: 01/16/2023] [Revised: 02/16/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Glioblastomas (GBMs) are notorious for their aggressive features, e.g., intrinsic radioresistance, extensive heterogeneity, hypoxia, and highly infiltrative behaviours. The prognosis has remained poor despite recent advances in systemic and modern X-ray radiotherapy. Boron neutron capture therapy (BNCT) represents an alternative radiotherapy technique for GBM. Previously, a Geant4 BNCT modelling framework was developed for a simplified model of GBM. PURPOSE The current work expands on the previous model by applying a more realistic in silico GBM model with heterogeneous radiosensitivity and anisotropic microscopic extensions (ME). METHODS Each cell within the GBM model was assigned an α/β value associated with different GBM cell lines and a 10B concentration. Dosimetry matrices corresponding to various MEs were calculated and combined to evaluate cell survival fractions (SF) using clinical target volume (CTV) margins of 2.0 & 2.5 cm. SFs for the BNCT simulation were compared with external X-ray radiotherapy (EBRT) SFs. RESULTS The SFs within the beam region decreased by more than two times compared to EBRT. It was demonstrated that BNCT results in markedly reduced SFs for both CTV margins compared to EBRT. However, the SF reduction as a result of the CTV margin extension using BNCT was significantly lower than using X-ray EBRT for one MEP distribution, while it remained similar for the other two MEP models. CONCLUSIONS Although the efficiency of BNCT in terms of cell kill is superior to EBRT, the extension of the CTV margin by 0.5 cm may not increase the BNCT treatment outcome significantly.
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Affiliation(s)
- Leyla Moghaddasi
- Radiation Oncology, Royal North Shore Hospital, Sydney, NSW 2065, Australia
- School of Physical Sciences, University of Adelaide, Adelaide, SA 5005, Australia
| | - Eva Bezak
- Cancer Research Institute, University of South Australia, Adelaide, SA 5000, Australia
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38
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Meher N, VanBrocklin HF, Wilson DM, Flavell RR. PSMA-Targeted Nanotheranostics for Imaging and Radiotherapy of Prostate Cancer. Pharmaceuticals (Basel) 2023; 16:315. [PMID: 37259457 PMCID: PMC9964110 DOI: 10.3390/ph16020315] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/11/2023] [Accepted: 02/12/2023] [Indexed: 08/26/2023] Open
Abstract
Targeted nanotheranostic systems offer significant benefits due to the integration of diagnostic and therapeutic functionality, promoting personalized medicine. In recent years, prostate-specific membrane antigen (PSMA) has emerged as an ideal theranostic target, fueling multiple new drug approvals and changing the standard of care in prostate cancer (PCa). PSMA-targeted nanosystems such as self-assembled nanoparticles (NPs), liposomal structures, water-soluble polymers, dendrimers, and other macromolecules are under development for PCa theranostics due to their multifunctional sensing and therapeutic capabilities. Herein, we discuss the significance and up-to-date development of "PSMA-targeted nanocarrier systems for radioligand imaging and therapy of PCa". The review also highlights critical parameters for designing nanostructured radiopharmaceuticals for PCa, including radionuclides and their chelators, PSMA-targeting ligands, and the EPR effect. Finally, prospects and potential for clinical translation is discussed.
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Affiliation(s)
- Niranjan Meher
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA
| | - Henry F. VanBrocklin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94143, USA
| | - David M. Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94143, USA
| | - Robert R. Flavell
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94143, USA
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158, USA
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39
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Sun F, Tan S, Cao HJ, Lu CS, Tu D, Poater J, Solà M, Yan H. Facile Construction of New Hybrid Conjugation via Boron Cage Extension. J Am Chem Soc 2023; 145:3577-3587. [PMID: 36744315 DOI: 10.1021/jacs.2c12526] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Aromatic polycyclic systems have been extensively utilized as structural subunits for the preparation of various functional molecules. Currently, aromatics-based polycyclic systems are predominantly generated from the extension of two-dimensional (2D) aromatic rings. In contrast, polycyclic compounds based on the extension of three-dimensional (3D) aromatics such as boron clusters are less studied. Here, we report three types of boron cluster-cored tricyclic molecular systems, which are constructed from a 2D aromatic ring, a 3D aromatic nido-carborane, and an alkyne. These new tricyclic compounds can be facilely accessed by Pd-catalyzed B-H activation and the subsequent cascade heteroannulation of carborane and pyridine with an alkyne in an isolated yield of up to 85% under mild conditions without any additives. Computational results indicate that the newly generated ring from the fusion of the 3D carborane, the 2D pyridyl ring, and an alkyne is non-aromatic. However, such fusion not only leads to a 1H chemical shift considerably downfield shifted owing to the strong diatropic ring current of the embedded carborane but also devotes to new/improved physicochemical properties including increased thermal stability, the emergence of a new absorption band, and a largely red-shifted emission band and enhanced emission efficiency. Besides, a number of bright, color-tunable solid emitters spanning over all visible light are obtained with absolute luminescence efficiency of up to 61%, in contrast to aggregation-caused emission quenching of, e.g., Rhodamine B containing a 2D-aromatics-fused structure. This work demonstrates that the new hybrid conjugated tricyclic systems might be promising structural scaffolds for the construction of functional molecules.
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Affiliation(s)
- Fangxiang Sun
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shuaimin Tan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hou-Ji Cao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Chang-Sheng Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Deshuang Tu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jordi Poater
- Departament de Química Inorgànica i Orgànica & IQTCUB, Universitat de Barcelona, Martí i Franquès 1-11, Barcelona 08028, Spain.,ICREA, Pg. Lluís Companys 23, Barcelona 08010, Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/ Maria Aurèlia Capmany, 69, Girona 17003, Catalonia, Spain
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Synthesis and Characterization of Gd-Functionalized B 4C Nanoparticles for BNCT Applications. Life (Basel) 2023; 13:life13020429. [PMID: 36836786 PMCID: PMC9967186 DOI: 10.3390/life13020429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Inorganic nanoparticles of boron-rich compounds represent an attractive alternative to boron-containing molecules, such as boronophenylalanine or boranes, for BNCT applications. This work describes the synthesis and biological activity of multifunctional boron carbide nanoparticles stabilized with polyacrylic acid (PAA) and a gadolinium (Gd)-rich solid phase. A fluorophore (DiI) was included in the PAA functionalization, allowing the confocal microscopy imaging of the nanoparticles. Analysis of the interaction and activity of these fluorescent Gd-containing B4C nanoparticles (FGdBNPs) with cultured cells was appraised using an innovative correlative microscopy approach combining intracellular neutron autoradiography, confocal, and SEM imaging. This new approach allows visualizing the cells, the FGdBNP, and the events deriving from the nuclear process in the same image. Quantification of 10B by neutron autoradiography in cells treated with FGdBNPs confirmed a significant accumulation of NPs with low levels of cellular toxicity. These results suggest that these NPs might represent a valuable tool for achieving a high boron concentration in tumoral cells.
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Recent Development of Radiofluorination of Boron Agents for Boron Neutron Capture Therapy of Tumor: Creation of 18F-Labeled C-F and B-F Linkages. Pharmaceuticals (Basel) 2023; 16:ph16010093. [PMID: 36678590 PMCID: PMC9866017 DOI: 10.3390/ph16010093] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Boron neutron capture therapy (BNCT) is a binary therapeutic technique employing a boron agent to be delivered to the tumor site followed by the irradiation of neutrons. Biofunctional molecules/nanoparticles labeled with F-18 can provide an initial pharmacokinetic profile of patients to guide the subsequent treatment planning procedure of BNCT. Borono phenylalanine (BPA), recognized by the l-type amino acid transporter, can cross the blood-brain barrier and be accumulated in gliomas. The radiofluoro BNCT agents are reviewed by considering (1) less cytotoxicity, (2) diagnosing and therapeutic purposes, (3) aqueous solubility and extraction route, as well as (4), the trifluoroborate effect. A trifluoroborate-containing amino acid such as fluoroboronotyrosine (FBY) represents an example with both functionalities of imaging and therapeutics. Comparing with the insignificant cytotoxicity of clinical BPA with IC50 > 500 μM, FBY also shows minute toxicity with IC50 > 500 μM. [18F]FBY is a potential diagnostic agent for its tumor to normal accumulation (T/N) ratio, which ranges from 2.3 to 24.5 from positron emission tomography, whereas the T/N ratio of FBPA is greater than 2.5. Additionally, in serving as a BNCT therapeutic agent, the boron concentration of FBY accumulated in gliomas remains uncertain. The solubility of 3-BPA is better than that of BPA, as evidenced by the cerebral dose of 3.4%ID/g vs. 2.2%ID/g, respectively. While the extraction route of d-BPA differs from that of BPA, an impressive T/N ratio of 6.9 vs. 1.5 is noted. [18F]FBPA, the most common clinical boron agent, facilitates the application of BPA in clinical BNCT. In addition to [18F]FBY, [18F] trifluoroborated nucleoside analog obtained through 1,3-dipolar cycloaddition shows marked tumoral uptake of 1.5%ID/g. Other examples using electrophilic and nucleophilic fluorination on the boron compounds are also reviewed, including diboronopinacolone phenylalanine and nonsteroidal anti-inflammatory agents.
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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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Huang CY, Lai ZY, Hsu TJ, Chou FI, Liu HM, Chuang YJ. Boron Neutron Capture Therapy Eliminates Radioresistant Liver Cancer Cells by Targeting DNA Damage and Repair Responses. J Hepatocell Carcinoma 2022; 9:1385-1401. [PMID: 36600987 PMCID: PMC9807134 DOI: 10.2147/jhc.s383959] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/04/2022] [Indexed: 12/29/2022] Open
Abstract
Introduction For advanced hepatocellular carcinoma (HCC), resistance to conservative treatments remains a challenge. In previous studies, the therapeutic effectiveness and DNA damage responses of boric acid-mediated boron neutron capture therapy (BA-BNCT) in HCC have been demonstrated in animal models and HCC cell line. On the other hand, numerous studies have shown that high linear energy transfer (LET) radiation can overcome tumor resistance. Since BNCT yields a mixture of high and low LET radiation, we aimed to explore whether and how BA-BNCT could eliminate radioresistant HCC cells. Methods Radioresistant human HCC (HepG2-R) cells were established from HepG2 cells via intermittent irradiation. HepG2 and HepG2-R cells were then irradiated with either γ-ray or neutron radiation of BA-BNCT. Colony formation assays were used to assess cell survival and the relative biological effectiveness (RBE). The expression of phosphorylated H2AX (γH2AX) was also examined by immunocytochemistry and Western blot assays to evaluate the extent of DNA double-strand breaks (DSBs). Finally, the expression levels of DNA damage response-associated proteins were determined, followed by cell cycle analysis and caspase-3 activity analysis. Results Our data demonstrated that under the same dose by γ-ray, BNCT effectively eliminated radioresistant HCC by increasing the number of DNA DSBs (p < 0.05) and impeding their repair (p < 0.05), which verified the high RBE of BNCT. We also found that BNCT resulted in delayed homologous recombination (HR) and inhibited the nonhomologous end-joining (NHEJ) pathway during DNA repair. Markedly, BNCT increased cell arrest (p < 0.05) in the G2/M phase by altering G2 checkpoint signaling and increased PUMA-mediated apoptosis (p < 0.05). Conclusion Our data suggest that DNA damage and repair responses could affect the anticancer efficiency of BNCT in radioresistant HepG2-R cells, which highlights the potential of BNCT as a viable treatment option for recurrent HCC.
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Affiliation(s)
- Chu-Yu Huang
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan,Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan,Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Zih-Yin Lai
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan,Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan,Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Tzu-Jung Hsu
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan,Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan,Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Fong-In Chou
- Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Hong-Ming Liu
- Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Yung-Jen Chuang
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan,Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan,Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan,Correspondence: Yung-Jen Chuang, School of Medicine, National Tsing Hua University, Hsinchu, 300044, Taiwan, Tel +886-3-5742764, Fax +886-3-5715934, Email
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Novopashina DS, Dymova MA, Davydova AS, Meschaninova MI, Malysheva DO, Kuligina EV, Richter VA, Kolesnikov IA, Taskaev SY, Vorobyeva MA. Aptamers for Addressed Boron Delivery in BNCT: Effect of Boron Cluster Attachment Site on Functional Activity. Int J Mol Sci 2022; 24:ijms24010306. [PMID: 36613750 PMCID: PMC9820356 DOI: 10.3390/ijms24010306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Among the great variety of anti-cancer therapeutic strategies, boron neutron capture therapy (BNCT) represents a unique approach that doubles the targeting accuracy due to the precise positioning of a neutron beam and the addressed delivery of boron compounds. We have recently demonstrated the principal possibility of using a cell-specific 2'-F-RNA aptamer for the targeted delivery of boron clusters for BNCT. In the present study, we evaluated the amount of boron-loaded aptamer inside the cell via two independent methods: quantitative real-time polymerase chain reaction and inductive coupled plasma-atomic emission spectrometry. Both assays showed that the internalized boron level inside the cell exceeds 1 × 109 atoms/cell. We have synthesized closo-dodecaborate conjugates of 2'-F-RNA aptamers GL44 and Waz, with boron clusters attached either at the 3'- or at the 5'-end. The influence of cluster localization was evaluated in BNCT experiments on U-87 MG human glioblastoma cells and normal fibroblasts and subsequent analyses of cell viability via real-time cell monitoring and clonogenic assay. Both conjugates of GL44 aptamer provided a specific decrease in cell viability, while only the 3'-conjugate of the Waz aptamer showed the same effect. Thus, an individual adjustment of boron cluster localization is required for each aptamer. The efficacy of boron-loaded 2'-F-RNA conjugates was comparable to that of 10B-boronophenylalanine, so this type of boron delivery agent has good potential for BNCT due to such benefits as precise targeting, low toxicity and the possibility to use boron clusters made of natural, unenriched boron.
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Affiliation(s)
- Darya S. Novopashina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Maya A. Dymova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Anna S. Davydova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Mariya I. Meschaninova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Daria O. Malysheva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Elena V. Kuligina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Vladimir A. Richter
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Iaroslav A. Kolesnikov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Budker Institute of Nuclear Physics, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Sergey Yu. Taskaev
- Budker Institute of Nuclear Physics, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Mariya A. Vorobyeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Correspondence:
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Ailuno G, Balboni A, Caviglioli G, Lai F, Barbieri F, Dellacasagrande I, Florio T, Baldassari S. Boron Vehiculating Nanosystems for Neutron Capture Therapy in Cancer Treatment. Cells 2022; 11:cells11244029. [PMID: 36552793 PMCID: PMC9776957 DOI: 10.3390/cells11244029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022] Open
Abstract
Boron neutron capture therapy is a low-invasive cancer therapy based on the neutron fission process that occurs upon thermal neutron irradiation of 10B-containing compounds; this process causes the release of alpha particles that selectively damage cancer cells. Although several clinical studies involving mercaptoundecahydro-closo-dodecaborate and the boronophenylalanine-fructose complex are currently ongoing, the success of this promising anticancer therapy is hampered by the lack of appropriate drug delivery systems to selectively carry therapeutic concentrations of boron atoms to cancer tissues, allowing prolonged boron retention therein and avoiding the damage of healthy tissues. To achieve these goals, numerous research groups have explored the possibility to formulate nanoparticulate systems for boron delivery. In this review. we report the newest developments on boron vehiculating drug delivery systems based on nanoparticles, distinguished on the basis of the type of carrier used, with a specific focus on the formulation aspects.
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Affiliation(s)
- Giorgia Ailuno
- Department of Pharmacy, University of Genova, 16147 Genova, Italy
- Correspondence: (G.A.); (T.F.)
| | - Alice Balboni
- Department of Pharmacy, University of Genova, 16147 Genova, Italy
| | | | - Francesco Lai
- Department of Life and Environmental Sciences (DiSVA), University of Cagliari, 09124 Cagliari, Italy
| | - Federica Barbieri
- Department of Internal Medicine, University of Genova, 16132 Genova, Italy
| | | | - Tullio Florio
- Department of Internal Medicine, University of Genova, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
- Correspondence: (G.A.); (T.F.)
| | - Sara Baldassari
- Department of Pharmacy, University of Genova, 16147 Genova, Italy
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Laskova J, Serdyukov A, Kosenko I, Ananyev I, Titova E, Druzina A, Sivaev I, Antonets AA, Nazarov AA, Bregadze VI. New Azido Coumarins as Potential Agents for Fluorescent Labeling and Their "Click" Chemistry Reactions for the Conjugation with closo-Dodecaborate Anion. Molecules 2022; 27:molecules27238575. [PMID: 36500667 PMCID: PMC9738631 DOI: 10.3390/molecules27238575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Novel fluorescent 7-methoxy- and 7-(diethylamino)-coumarins modified with azido-group on the side chain have been synthesized. Their photophysical properties and single crystals structure characteristics have been studied. In order to demonstrate the possibilities of fluorescent labeling, obtained coumarins have been tested with closo-dodecaborate derivative bearing terminal alkynyl group. CuI catalyzed Huisgen 1,3-dipolar cycloaddition reaction has led to fluorescent conjugates formation. The absorption-emission spectra of the formed conjugates have been presented. The antiproliferative activity and uptake of compounds against several human cell lines were evaluated.
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Affiliation(s)
- Julia Laskova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
- Correspondence: ; Tel.: +41-78-243-1408
| | - Alexander Serdyukov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
- M.V. Lomonosov Institute of Fine Chemical Technology, MIREA—Technological University, 86 Vernadsky Avenue, 119571 Moscow, Russia
| | - Irina Kosenko
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
| | - Ivan Ananyev
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky Avenue, 119991 Moscow, Russia
| | - Ekaterina Titova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
| | - Anna Druzina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
| | - Igor Sivaev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
- Basic Department of Chemistry of Innovative Materials and Technologies, G.V. Plekhanov Russian University of Economics, 36 Stremyannyi Line, 117997 Moscow, Russia
| | - Anastasia A. Antonets
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
| | - Alexey A. Nazarov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia
| | - Vladimir I. Bregadze
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., 119334 Moscow, Russia
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Carborane-Containing Folic Acid bis-Amides: Synthesis and In Vitro Evaluation of Novel Promising Agents for Boron Delivery to Tumour Cells. Int J Mol Sci 2022; 23:ijms232213726. [PMID: 36430206 PMCID: PMC9692863 DOI: 10.3390/ijms232213726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
The design of highly selective low-toxic, low-molecular weight agents for boron delivery to tumour cells is of decisive importance for the development of boron neutron capture therapy (BNCT), a modern efficient combined method for cancer treatment. In this work, we developed a simple method for the preparation of new closo- and nido-carborane-containing folic acid bis-amides containing 18-20 boron atoms per molecule. Folic acid derivatives containing nido-carborane residues were characterised by high water solubility, low cytotoxicity, and demonstrated a good ability to deliver boron to tumour cells in in vitro experiments (up to 7.0 µg B/106 cells in the case of U87 MG human glioblastoma cells). The results obtained demonstrate the high potential of folic acid-nido-carborane conjugates as boron delivery agents to tumour cells for application in BNCT.
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Reaction of Chloroacetyl-Modified Peptides with Mercaptoundecahydrododecaborate (BSH) Is Accelerated by Basic Amino Acid Residues in the Peptide. Processes (Basel) 2022. [DOI: 10.3390/pr10112200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We assessed a reactivity of chloroacetyl-modified tripeptides consisting of various amino acid residues (Cl-3X) and mercaptoundecahydrododecaborate (BSH) by converting Cl-3X to its reactant (BS-3X). We showed that the Cl-3X consisting of basic amino acid residues (e.g., Arg) reacted with BSH effectively and its conversion decreased as the number of Arg residues in the Cl-3X decreased. Furthermore, a reactivity of the peptides with introduction of an alkyl linker between the triarginine and the chloroacetyl group (Cl-Cn-3R) with BSH decreased with increasing alkyl linker length. These results indicate that an electrostatic attraction of positively charged amino acid residues in the tripeptides and negatively charged BSH causes BSH to gather in a vicinity of the chloroacetyl group, resulting in an accelerated reaction. This work should aid a development of new boron agents using BSH in boron neutron capture therapy.
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Klyukin IN, Kolbunova AV, Selivanov NA, Bykov AY, Kubasov AS, Zhdanov AP, Zhizhin KY, Kuznetsov NT. Study of Protonation of Ethyloxy Derivative of closo-Decaborate anion [B10H9OC2H5]2–. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s003602362260085x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Avdeeva V, Malinina E, Kuznetsov N. Boron cluster anions and their derivatives in complexation reactions. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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