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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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