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Bednarska-Szczepaniak K, Ebenryter-Olbińska K, Gajek G, Śmiałkowski K, Suwara J, Fiedorowicz L, Leśnikowski Z. Synthesis of DNA-Boron Cluster Composites and Assembly into Functional Nanoparticles with Dual, Anti-EGFR, and Anti-c-MYC Oncogene Silencing Activity. Chemistry 2024; 30:e202303531. [PMID: 38214885 DOI: 10.1002/chem.202303531] [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: 10/25/2023] [Revised: 12/14/2023] [Accepted: 01/08/2024] [Indexed: 01/13/2024]
Abstract
A versatile method for the automated synthesis of composites containing DNA-oligonucleotides and boron cluster scaffolds and their assembly into functional nanoparticles is described. The obtained, torus-like nanoparticles carry antisense oligonucleotides that target two different oncogenes simultaneously. The nanoparticles exhibited notable silencing efficiency in vitro in a pancreatic carcinoma cell line PANC-1 toward EGFR and c-Myc genes at the mRNA level, and a significant efficiency at the protein level. The proposed approach may be an attractive alternative to methods currently used, including one therapeutic nucleic acid, one genetic target, or the use of cocktails of therapeutic nucleic acids.
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Affiliation(s)
- Katarzyna Bednarska-Szczepaniak
- Laboratory of Medicinal Chemistry, Institute of Medical Biology, Polish Academy of Sciences, Lodowa Łódź, 106, 92-232, Lodz, Poland
| | - Katarzyna Ebenryter-Olbińska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza, Łódź, 112, 90-363 Lodz, Poland
| | - Gabriela Gajek
- Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences, Lodowa Łódź, 106, 92-232, Lodz, Poland
| | - Krzysztof Śmiałkowski
- Laboratory of Medicinal Chemistry, Institute of Medical Biology, Polish Academy of Sciences, Lodowa Łódź, 106, 92-232, Lodz, Poland
- Lodz Institutes of the Polish Academy of Science, The Bio-Med-Chem Doctoral School, University of Lodz, Poland
| | - Justyna Suwara
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza, Łódź, 112, 90-363 Lodz, Poland
| | - Lidia Fiedorowicz
- Laboratory of Mycobacterium Genetics and Physiology, Institute of Medical Biology Polish Academy of Sciences, Lodowa Łódź, 106, 92-232, Lodz, Poland
- Lodz Institutes of the Polish Academy of Science, The Bio-Med-Chem Doctoral School, University of Lodz, Poland
| | - Zbigniew Leśnikowski
- Laboratory of Medicinal Chemistry, Institute of Medical Biology, Polish Academy of Sciences, Lodowa Łódź, 106, 92-232, Lodz, Poland
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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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EGFR-Targeted Cellular Delivery of Therapeutic Nucleic Acids Mediated by Boron Clusters. Int J Mol Sci 2022; 23:ijms232314793. [PMID: 36499115 PMCID: PMC9740766 DOI: 10.3390/ijms232314793] [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: 10/17/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
New boron carriers with high boron content and targeted cancer-cell delivery are considered the first choice for boron neutron capture therapy (BNCT) for cancer treatment. Previously, we have shown that composites of antisense oligonucleotide and boron clusters are functional nanoparticles for the downregulation of expression of epidermal growth factor receptor (EGFR) and can be loaded into EGFR-overexpressing cancer cells without a transfection factor. In this study, we hypothesize that free cellular uptake is mediated by binding and activation of the EGFR by boron clusters. Proteomic analysis of proteins pulled-down from various EGFR-overexpressing cancer cells using short oligonucleotide probes, conjugated to 1,2-dicarba-closo-dodecaborane (1,2-DCDDB, [C2B10H12]) and [(3,3'-Iron-1,2,1',2'-dicarbollide)-] (FESAN, [Fe(C2B9H11)2]-), evidenced that boron cage binds to EGFR subdomains. Moreover, inductively coupled plasma mass spectrometry (ICP MS) and fluorescence microscopy analyses confirmed that FESANs-highly decorated B-ASOs were efficiently delivered and internalized by EGFR-overexpressing cells. Antisense reduction of EGFR in A431 and U87-MG cells resulted in decreased boron accumulation compared to control cells, indicating that cellular uptake of B-ASOs is related to EGFR-dependent internalization. The data obtained suggest that EGFR-mediated cellular uptake of B-ASO represents a novel strategy for cellular delivery of therapeutic nucleic acids (and possibly other medicines) conjugated to boron clusters.
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Aloisi M, Rossi G, Colafarina S, Guido M, Cecconi S, Poma AMG. The Impact of Metal Nanoparticles on Female Reproductive System: Risks and Opportunities. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13748. [PMID: 36360633 PMCID: PMC9655349 DOI: 10.3390/ijerph192113748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/16/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Humans have always been exposed to tiny particles via dust storms, volcanic ash, and other natural processes, and our bodily systems are well adapted to protect us from these potentially harmful external agents. However, technological advancement has dramatically increased the production of nanometer-sized particles or nanoparticles (NPs), and many epidemiological studies have confirmed a correlation between NP exposure and the onset of cardiovascular diseases and various cancers. Among the adverse effects on human health, in recent years, potential hazards of nanomaterials on female reproductive organs have received increasing concern. Several animal and human studies have shown that NPs can translocate to the ovary, uterus, and placenta, thus negatively impacting female reproductive potential and fetal health. However, NPs are increasingly being used for therapeutic purposes as tools capable of modifying the natural history of degenerative diseases. Here we briefly summarize the toxic effects of few but widely diffused NPs on female fertility and also the use of nanotechnologies as a new molecular approach for either specific pathological conditions, such as ovarian cancer and infertility, or the cryopreservation of gametes and embryos.
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Boron Clusters as Enhancers of RNase H Activity in the Smart Strategy of Gene Silencing by Antisense Oligonucleotides. Int J Mol Sci 2022; 23:ijms232012190. [PMID: 36293047 PMCID: PMC9603397 DOI: 10.3390/ijms232012190] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 11/28/2022] Open
Abstract
Boron cluster-conjugated antisense oligonucleotides (B-ASOs) have already been developed as therapeutic agents with “two faces”, namely as potential antisense inhibitors of gene expression and as boron carriers for boron neutron capture therapy (BNCT). The previously observed high antisense activity of some B-ASOs targeting the epidermal growth factor receptor (EGFR) could not be rationally assigned to the positioning of the boron cluster unit: 1,2-dicarba-closo-dodecaborane (0), [(3,3′-Iron-1,2,1′,2′-dicarbollide) (1-), FESAN], and dodecaborate (2-) in the ASO chain and its structure or charge. For further understanding of this observation, we performed systematic studies on the efficiency of RNase H against a series of B-ASOs models. The results of kinetic analysis showed that pyrimidine-enriched B-ASO oligomers activated RNase H more efficiently than non-modified ASO. The presence of a single FESAN unit at a specific position of the B-ASO increased the kinetics of enzymatic hydrolysis of complementary RNA more than 30-fold compared with unmodified duplex ASO/RNA. Moreover, the rate of RNA hydrolysis enhanced with the increase in the negative charge of the boron cluster in the B-ASO chain. In conclusion, a “smart” strategy using ASOs conjugated with boron clusters is a milestone for the development of more efficient antisense therapeutic nucleic acids as inhibitors of gene expression.
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Carboranes in drug discovery, chemical biology and molecular imaging. Nat Rev Chem 2022; 6:486-504. [PMID: 37117309 DOI: 10.1038/s41570-022-00400-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2022] [Indexed: 11/08/2022]
Abstract
There exists a paucity of structural innovation and limited molecular diversity associated with molecular frameworks in drug discovery and biomolecular imaging/chemical probe design. The discovery and exploitation of new molecular entities for medical and biological applications will necessarily involve voyaging into previously unexplored regions of chemical space. Boron clusters, notably the carboranes, offer an alternative to conventional (poly)cyclic organic frameworks that may address some of the limitations associated with the use of novel molecular frameworks in chemical biology or medicine. The high thermal stability, unique 3D structure and aromaticity, kinetic inertness to metabolism and ability to engage in unusual types of intermolecular interactions, such as dihydrogen bonds, with biological receptors make carboranes exquisite frameworks in the design of probes for chemical biology, novel drug candidates and biomolecular imaging agents. This Review highlights the key developments of carborane derivatives made over the last decade as new design tools in medicinal chemistry and chemical biology, showcasing the versatility of this unique family of boron compounds.
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Zaboronok A, Khaptakhanova P, Uspenskii S, Bekarevich R, Mechetina L, Volkova O, Mathis BJ, Kanygin V, Ishikawa E, Kasatova A, Kasatov D, Shchudlo I, Sycheva T, Taskaev S, Matsumura A. Polymer-Stabilized Elemental Boron Nanoparticles for Boron Neutron Capture Therapy: Initial Irradiation Experiments. Pharmaceutics 2022; 14:pharmaceutics14040761. [PMID: 35456595 PMCID: PMC9032815 DOI: 10.3390/pharmaceutics14040761] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/24/2023] Open
Abstract
Sufficient boron-10 isotope (10B) accumulation by tumor cells is one of the main requirements for successful boron neutron capture therapy (BNCT). The inability of the clinically registered 10B-containing borophenylalanine (BPA) to maintain a high boron tumor concentration during neutron irradiation after a single injection has been partially solved by its continuous infusion; however, its lack of persistence has driven the development of new compounds that overcome the imperfections of BPA. We propose using elemental boron nanoparticles (eBNPs) synthesized by cascade ultrasonic dispersion and destruction of elemental boron microparticles and stabilized with hydroxyethylcellulose (HEC) as a core component of a novel boron drug for BNCT. These HEC particles are stable in aqueous media and show no apparent influence on U251, U87, and T98G human glioma cell proliferation without neutron beam irradiation. In BNCT experiments, cells incubated with eBNPs or BPA at an equivalent concentration of 40 µg 10B/mL for 24 h or control cells without boron were irradiated at an accelerator-based neutron source with a total fluence of thermal and epithermal neutrons of 2.685, 5.370, or 8.055 × 1012/cm2. The eBNPs significantly reduced colony-forming capacity in all studied cells during BNCT compared to BPA, verified by cell-survival curves fit to the linear-quadratic model and calculated radiobiological parameters, though the effect of both compounds differed depending on the cell line. The results of our study warrant further tumor targeting-oriented modifications of synthesized nanoparticles and subsequent in vivo BNCT experiments.
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Affiliation(s)
- Alexander Zaboronok
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; (E.I.); (A.M.)
- Laboratory of Medical and Biological Problems of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia;
- Correspondence: ; Tel.: +81-29-853-3220; Fax: +81-29-853-3214
| | - Polina Khaptakhanova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70, Profsoyuznaya Street, 117393 Moscow, Russia; (P.K.); (S.U.)
| | - Sergey Uspenskii
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70, Profsoyuznaya Street, 117393 Moscow, Russia; (P.K.); (S.U.)
| | - Raman Bekarevich
- The Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Microscopy Laboratory, Trinity College Dublin, The University of Dublin, D02 W272 Dublin, Ireland;
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - Ludmila Mechetina
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Novosibirsk, 8/2 Lavrentieva, 630090 Novosibirsk, Russia; (L.M.); (O.V.)
| | - Olga Volkova
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Novosibirsk, 8/2 Lavrentieva, 630090 Novosibirsk, Russia; (L.M.); (O.V.)
| | - Bryan J. Mathis
- International Medical Center, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba 305-8576, Japan;
| | - Vladimir Kanygin
- Laboratory of Medical and Biological Problems of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia;
| | - Eiichi Ishikawa
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; (E.I.); (A.M.)
| | - Anna Kasatova
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Dmitrii Kasatov
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Ivan Shchudlo
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Tatiana Sycheva
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Sergey Taskaev
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Akira Matsumura
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; (E.I.); (A.M.)
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