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Pronin AS, Pozmogova TN, Vorotnikov YA, Vavilov GD, Ivanov AA, Yanshole VV, Tsygankova AR, Gusel’nikova TY, Mironov YV, Shestopalov MA. PEGylation of Terminal Ligands as a Route to Decrease the Toxicity of Radiocontrast Re 6-Clusters. Int J Mol Sci 2023; 24:16569. [PMID: 38068892 PMCID: PMC10706756 DOI: 10.3390/ijms242316569] [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: 10/30/2023] [Revised: 11/17/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
The development of novel radiocontrast agents, mainly used for the visualization of blood vessels, is still an emerging task due to the variety of side effects of conventional X-ray contrast media. Recently, we have shown that octahedral chalcogenide rhenium clusters with phosphine ligands-Na2H14[{Re6Q8}(P(C2H4COO)3)6] (Q = S, Se)-can be considered as promising X-ray contrast agents if their relatively high toxicity related to the high charge of the complexes can be overcome. To address this issue, we propose one of the most widely used methods for tuning the properties of proteins and peptides-PEGylation (PEG is polyethylene glycol). The reaction between the clusters and PEG-400 was carried out in acidic aqueous media and resulted in the binding of up to five carboxylate groups with PEG. The study of cytotoxicity against Hep-2 cells and acute toxicity in mice showed a twofold reduction in toxicity after PEGylation, demonstrating the success of the strategy chosen. Finally, the compound obtained has been used for the visualization of blood vessels of laboratory rats by angiography and computed tomography.
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Affiliation(s)
- Aleksei S. Pronin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
| | - Tatiana N. Pozmogova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
| | - Yuri A. Vorotnikov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
| | - Georgy D. Vavilov
- National Medical Research Center for Circulation Pathology n.a. Academician E.N. Meshalkin, 15 Rechkunovskaya St., Novosibirsk 630055, Russia;
| | - Anton A. Ivanov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
| | - Vadim V. Yanshole
- International Tomography Center SB RAS, 3a Institutskaya St., Novosibirsk 630090, Russia;
- Department of Physics, Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - Alphiya R. Tsygankova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - Tatiana Ya. Gusel’nikova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
- Department of Physics, Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
| | - Michael A. Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia; (A.S.P.); (T.N.P.); (A.A.I.); (A.R.T.); (T.Y.G.); (M.A.S.)
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Kirakci K, Shestopalov MA, Lang K. Recent developments on luminescent octahedral transition metal cluster complexes towards biological applications. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Pronin AS, Gayfulin YM, Sukhikh TS, Mironov YV. Selective Oxidation of Inner Pnictogenide Ligands in Mixed-Ligand Rhenium Cubane-Type Cluster Complexes. Inorg Chem 2022; 61:19756-19763. [PMID: 36426510 DOI: 10.1021/acs.inorgchem.2c02556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Reactivity of new tetrahedral rhenium cluster complexes with pnictogenide inner ligands μ3-As3-, μ3-Sb3-, and μ3-Bi3- has been investigated in reactions with aqueous H2O2. It has been found that the oxidation of clusters [{Re4As3Q}(CN)12]7- (Q = S or Se) led to the formation of stable clusters with μ3-(AsO)3- ligands. Under the same conditions, the oxidation of [{Re4As2S2}(CN)12]6- cluster led to substitution of μ3-As3- ligands to μ3-O2-. The resulting cluster [{Re4O2S2}(CN)12]4- easily undergoes further oxidation, and even at room temperature, a unique {Re4} to {Re3} rearrangement occurs with the formation of the new triangular cluster [{Re3(μ3-S)(μ-O)2(μ-SO2)}(CN)9]5-. Upon heating, this process proceeds faster and the triangular cluster can be isolated as individual compounds. Cluster anions [{Re4SbSe3}(CN)12]5- and [{Re4BiS3}(CN)12]5- reacted with H2O2, yielding clusters containing μ3-O2- ligands, namely, [{Re4OSe3}(CN)12]4- and [{Re4OS3}(CN)12]4-. This indicates that oxidized forms of μ3-Sb3- and μ3-Bi3- ligands can be easily substituted.
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Affiliation(s)
- Aleksei S Pronin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Avenue, 630090 Novosibirsk, Russian Federation
| | - Yakov M Gayfulin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Avenue, 630090 Novosibirsk, Russian Federation
| | - Taisiya S Sukhikh
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Avenue, 630090 Novosibirsk, Russian Federation
| | - Yuri V Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Avenue, 630090 Novosibirsk, Russian Federation
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Water-Soluble Chalcogenide W 6-Clusters: On the Way to Biomedical Applications. Int J Mol Sci 2022; 23:ijms23158734. [PMID: 35955875 PMCID: PMC9369320 DOI: 10.3390/ijms23158734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/04/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
Despite the great potential of octahedral tungsten cluster complexes in fields of biomedical applications such as X-ray computed tomography or angiography, there is only one example of a water-soluble W6Q8-cluster that has been reported in the literature. Herein we present the synthesis and a detailed characterization including X-ray structural analysis, NMR, IR, UV-Vis spectroscopies, HR-MS spectrometry, and the electrochemical behavior of two new cluster complexes of the general formula W6Q8L6 with phosphine ligands containing a hydrophilic carboxylic group, which makes the complexes soluble in an aqueous medium. The hydrolytic stability of the clusters' aqueous solutions allows us to investigate for the first time the influence of W6-clusters on cell viability. The results obtained clearly demonstrate their very low cytotoxicity, comparable to the least-toxic clusters presented in the literature.
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De La Vega JC, Esquinas PL, Gill JK, Jessa S, Gill B, Thakur Y, Saatchi K, Häfeli UO. Comparison of Rhenium and Iodine as Contrast Agents in X-Ray Imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2021; 2021:1250360. [PMID: 34803544 PMCID: PMC8575601 DOI: 10.1155/2021/1250360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/22/2021] [Accepted: 10/01/2021] [Indexed: 11/18/2022]
Abstract
Purpose The majority of X-ray contrast agents (XCA) are made with iodine, but iodine-based XCA (I-XCA) exhibit low contrast in high kVp X-rays due to iodine's low atomic number (Z = 53) and K-edge (33.1 keV). While rhenium is a transition metal with a high atomic number (Z = 75) and K-edge (71.7 keV), the utilization of rhenium-based XCA (Re-XCA) in X-ray imaging techniques has not been studied in depth. Our study had two objectives: (1) to compare both the image quality and the absorbed dose of I- and Re-XCA and (2) to prepare and image a rhenium-doped scaffold. Procedures. I- and Re-XCA were prepared and imaged from 50 to 120 kVp by Micro-computed tomography (µCT) and digital radiography and from 120 to 220 kVp by planar X-ray imaging. The scans were repeated using 0.1 to 1.6 mm thick copper filters to harden the X-ray beam. A rhenium-doped scaffold was prepared via electrospinning, used to coat catheters, and imaged at 90 kVp by µCT. Results I-XCA have a greater contrast-to-noise ratio (CNR) at 50 and 80 kVp, but Re-XCA have a greater CNR at >120 kVp. The difference in CNR is increased as the thickness of the copper filters is increased. For instance, the percent CNR improvement of rhenium over iodine is 14.2% with a 0.6 mm thick copper filter, but it is 59.1% with a 1.6 mm thick copper filter, as shown at 120 kVp by µCT. Upon coating them with a rhenium-doped scaffold, the catheters became radiopaque. Conclusions Using Monte Carlo simulations, we showed that it is possible to reduce the absorbed dose of high kVp X-rays while allowing the acquisition of high-quality images. Furthermore, radiopaque catheters have the potential of enhancing the contrast during catheterizations and helping physicians to place catheters inside patients more rapidly and precisely.
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Affiliation(s)
- José Carlos De La Vega
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Pedro Luis Esquinas
- Medical Imaging Research Group, Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jovan Kaur Gill
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Selin Jessa
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bradford Gill
- Medical Physics Department, BC Cancer, Vancouver, British Columbia, Canada
| | - Yogesh Thakur
- Department of Radiology, University of British Columbia, Vancouver, British Columbia, Canada
- Medical Imaging, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Katayoun Saatchi
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Urs O. Häfeli
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
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Pronin AS, Brylev KA, Ströbele M, Meyer HJ, Mironov YV. SYNTHESIS AND STRUCTURE OF A RHENIUM TETRAHEDRAL CLUSTER COMPLEX WITH THE {Re4(PO)4}4+ CORE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s002247662107012x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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7
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Kirakci K, Pozmogova TN, Protasevich AY, Vavilov GD, Stass DV, Shestopalov MA, Lang K. A water-soluble octahedral molybdenum cluster complex as a potential agent for X-ray induced photodynamic therapy. Biomater Sci 2021; 9:2893-2902. [PMID: 33464243 DOI: 10.1039/d0bm02005b] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
X-ray-induced photodynamic therapy (X-PDT) has recently evolved into a suitable modality to fight cancer. This technique, which exploits radiosensitizers producing reactive oxygen species, allows for a reduction of the radiation dose needed to eradicate cancer in the frame of the radiotherapy treatment of deep tumors. The use of transition metal complexes able to directly produce singlet oxygen, O2(1Δg), upon X-ray irradiation constitutes a promising route towards the optimization of the radiosensitizer's architecture. In our endeavour to conceive pertinent agents for X-PDT, we designed an octahedral molybdenum cluster complex (Mo6) with iodine inner ligands, and carboxylated apical ligands bearing ethylene oxide organic functions. The sodium salt of this complex is highly soluble in aqueous media and displays red luminescence which is efficiently quenched by oxygen to produce O2(1Δg) in a high quantum yield. Furthermore, due to its high radiodensity, the complex exhibits radioluminescence in aqueous media, with the same spectral features as for photoluminescence, indicating the production of O2(1Δg) upon X-ray irradiation. The uptake of the complex by Hep-2 and MRC-5 cells is negligible during the first hours of incubation, then considerably increases in connection with the hydrolysis of the apical ligands. The complex exhibits low toxicity in vitro and induces a radiotoxic effect, noticeable against cancerous Hep-2 cells but negligible against normal MRC-5 cells, at X-ray doses that do not affect cell viability otherwise. The first evaluation of in vivo toxicity of an Mo6 complex on a mouse model evidences a moderate and delayed toxic effect on kidneys, with an intravenous LD50 value of 390 ± 30 mg kg-1, possibly connected with hydrolysis-induced aggregation of the complex. Overall, this complex displays attractive features as a singlet oxygen radiosensitizer for X-PDT, highlighting the potential of transition metal cluster complexes towards this modality.
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Affiliation(s)
- Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - Tatiana N Pozmogova
- SPF-vivarium, Institute of Cytology and Genetics, SB RAS, 10 Acad. Lavrentieva ave., 630090, Novosibirsk, Russia and Novosibirsk State University, 1 Pirogova st., 630090, Novosibirsk, Russia
| | - Andrey Y Protasevich
- Nikolaev Institute of Inorganic Chemistry SB RAS, RAS, 3 Acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Georgy D Vavilov
- National Medical Research Center for Circulation Pathology n.a. academician E.N. Meshalkin, 15, Rechkunovskaya st., 630055, Novosibirsk, Russia
| | - Dmitri V Stass
- Novosibirsk State University, 1 Pirogova st., 630090, Novosibirsk, Russia and Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya st., 630090, Novosibirsk, Russia
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, RAS, 3 Acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
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Konovalov DI, Ivanov AA, Frolova TS, Eltsov IV, Gayfulin YM, Plunkett L, Bazzar M, Adawi AM, Bouillard JSG, Baiborodin SI, Sinitsyna OI, Kuratieva NV, Yanshole VV, Efremova OA, Shestopalov MA. Water-Soluble Rhenium Clusters with Triazoles: The Effect of Chemical Structure on Cellular Internalization and the DNA Binding of the Complexes. Chemistry 2020; 26:13904-13914. [PMID: 32452602 DOI: 10.1002/chem.202001680] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/10/2020] [Indexed: 11/10/2022]
Abstract
Here we explore the effect of the nature of organic ligands in rhenium cluster complexes [Re6 Q8 L6 ]4- (where Q=S or Se, and L=benzotriazole, 1,2,3-triazole or 1,2,4-triazole) on the biological properties of the complexes, in particular on the cellular toxicity, cellular internalization and localization. Specifically, the study describes the synthesis and detailed characterization of the structure, luminescence and electrochemical properties of the four new Re6 clusters with 1,2,3- and 1,2,4-triazoles. Biological assays of these complexes are also discussed in addition to those with benzotriazole using cervical cancer (HeLa) and immortalized human fibroblasts (CRL-4025) as model cell lines. Our study demonstrates that the presence of hydrophobic and π-bonding rich units such as the benzene ring in benzotriazole significantly enhances cellular internalization of rhenium clusters. These ligands facilitate binding of the clusters to DNA, which results in increased cytotoxicity of the complexes.
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Affiliation(s)
- Dmitry I Konovalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Anton A Ivanov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Tatiana S Frolova
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,Federal Research Center Institute of Cytology and Genetics SB RAS, 10 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Ilia V Eltsov
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Yakov M Gayfulin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Louis Plunkett
- School of Mathematics and Physical Sciences, G.W. Gray Centre for Advanced Materials University of Hull, Cottingham Road, HU6 7RX, Hull, UK
| | - Masoomeh Bazzar
- School of Mathematics and Physical Sciences, G.W. Gray Centre for Advanced Materials University of Hull, Cottingham Road, HU6 7RX, Hull, UK
| | - Ali M Adawi
- School of Mathematics and Physical Sciences, G.W. Gray Centre for Advanced Materials University of Hull, Cottingham Road, HU6 7RX, Hull, UK
| | - Jean-Sebastien G Bouillard
- School of Mathematics and Physical Sciences, G.W. Gray Centre for Advanced Materials University of Hull, Cottingham Road, HU6 7RX, Hull, UK
| | - Sergey I Baiborodin
- Federal Research Center Institute of Cytology and Genetics SB RAS, 10 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Olga I Sinitsyna
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,Federal Research Center Institute of Cytology and Genetics SB RAS, 10 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Natalia V Kuratieva
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Vadim V Yanshole
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,International Tomography Center SB RAS, 3a Institutskaya st., 630090, Novosibirsk, Russia
| | - Olga A Efremova
- School of Mathematics and Physical Sciences, G.W. Gray Centre for Advanced Materials University of Hull, Cottingham Road, HU6 7RX, Hull, UK
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
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Konovalov DI, Ivanov AA, Vorotnikov YA, Smolentsev AI, Eltsov IV, Efremova OA, Kitamura N, Mironov YV, Shestopalov MA. Octahedral chalcogenide rhenium cluster complexes with imidazole. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Ivanov AA, Konovalov DI, Pozmogova TN, Solovieva AO, Melnikov AR, Brylev KA, Kuratieva NV, Yanshole VV, Kirakci K, Lang K, Cheltygmasheva SN, Kitamura N, Shestopalova LV, Mironov YV, Shestopalov MA. Water-soluble Re6-clusters with aromatic phosphine ligands – from synthesis to potential biomedical applications. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01216d] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
New hexarhenium clusters exhibit radio- and photoluminescence, have low cytotoxicity, are capable of penetrating into cells and exhibit photodynamic toxicity.
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11
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Mikhaylov MA, Mironova AD, Brylev KA, Sukhikh TS, Eltsov IV, Stass DV, Gushchin AL, Kitamura N, Sokolov MN. Functionalization of [Re 6Q 8(CN) 6] 4− clusters by methylation of cyanide ligands. NEW J CHEM 2019. [DOI: 10.1039/c9nj02971k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Methylation of anionic cluster complexes [Re6Q8(CN)6]4− with ((CH3)3O)BF4 or CF3SO3CH3 afforded homoleptic isonitrile cluster complexes [Re6Q8(CH3NC)6]2+ (Q = S, Se, Te).
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Affiliation(s)
| | - Alina D. Mironova
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | - Konstantin A. Brylev
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Taisiya S. Sukhikh
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | | | - Dmitri V. Stass
- Novosibirsk State University
- 630090 Novosibirsk
- Russia
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk
| | - Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Noboru Kitamura
- Department of Chemistry
- Faculty of Science
- Hokkaido University
- 060-0810 Sapporo
- Japan
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
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Elistratova J, Akhmadeev B, Korenev V, Sokolov M, Nizameev I, Gubaidullin A, Voloshina A, Mustafina A. Self-assembly of Gd 3+-bound keplerate polyanions into nanoparticles as a route for the synthesis of positive MRI contrast agents. Impact of the structure on the magnetic relaxivity. SOFT MATTER 2018; 14:7916-7925. [PMID: 30246848 DOI: 10.1039/c8sm01214h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The present work introduces Gd3+ complexes with giant keplerate polyanions as a promising basis for MRI contrast agents. The impact of Gd3+ binding with different building blocks of keplerates on the magnetic relaxivity of the complexes is revealed by comparative study of the keplerates [{Mo6O21}12{Mo2O4(OAc)}30]42-, [{Mo6O21}12{Mo2O4(HPO4)}30]72-, and [{Mo6O21}12{Mo2O2S2(OAc)}30]42-. Unprecedentedly high longitudinal and transverse relaxivity values (up to 250 and 300 mM-1 s-1 correspondingly) are achieved for the keplerates possessing edl{Mo2O4(OAc)} and {Mo2O4(HPO42-)} moieties under their 1 : 1 complex formation with Gd3+. The transformation of the external pores from Mo9O9 to Mo9O6S3 in the {Mo2O2S2(OAc)}-keplerate and an increase in the Gd3+-to-keplerate ratio are the factors that decrease the relaxivity. The rapid degradation of the free keplerates in aqueous solutions restricts the use of the Gd3+-bound keplerates with 1 : 1 stoichiometry as MRI contrast agents. In this work, the optimized stoichiometry of the complexes, their self-assembly into ultra-small nanoparticles and their hydrophilic coating by a triblock copolymer are highlighted as tools for increasing both the colloid and chemical stability of the keplerate complexes. Optimal keplerate compositions have been identified to achieve a compromise of low cytotoxicity and high stability; these Gd3+-bound keplerates exhibit longitudinal and transverse relaxivity values (95 and 114 mM-1 s-1, respectively), well within the region of interest for MRI techniques.
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Affiliation(s)
- Julia Elistratova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str., 8, 420088, Kazan, Russia.
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Solovieva AO, Kirakci K, Ivanov AA, Kubát P, Pozmogova TN, Miroshnichenko SM, Vorontsova EV, Chechushkov AV, Trifonova KE, Fufaeva MS, Kretov EI, Mironov YV, Poveshchenko AF, Lang K, Shestopalov MA. Singlet Oxygen Production and Biological Activity of Hexanuclear Chalcocyanide Rhenium Cluster Complexes [{Re6Q8}(CN)6]4– (Q = S, Se, Te). Inorg Chem 2017; 56:13491-13499. [DOI: 10.1021/acs.inorgchem.7b02212] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anastasiya O. Solovieva
- Research Institute of Experimental and Clinical Medicine, 2 Timakova st., 630117 Novosibirsk, Russian Federation
- Research Institute of Clinical and Experimental Lymphology−Branch of the ICG SB RAS, 2 Timakova
st., 630060 Novosibirsk, Russian Federation
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - Anton A. Ivanov
- Research Institute of Experimental and Clinical Medicine, 2 Timakova st., 630117 Novosibirsk, Russian Federation
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russian Federation
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Tatiana N. Pozmogova
- Research Institute of Clinical and Experimental Lymphology−Branch of the ICG SB RAS, 2 Timakova
st., 630060 Novosibirsk, Russian Federation
- Novosibirsk State University, 2 Pirogova
Str., Novosibirsk 630090, Russian Federation
| | - Svetlana M. Miroshnichenko
- Research Institute of Clinical and Experimental Lymphology−Branch of the ICG SB RAS, 2 Timakova
st., 630060 Novosibirsk, Russian Federation
| | - Elena V. Vorontsova
- The Institute of Molecular Biology and Biophysics, 2/12 Timakova st., 630117 Novosibirsk, Russian Federation
| | - Anton V. Chechushkov
- Research Institute of Experimental and Clinical Medicine, 2 Timakova st., 630117 Novosibirsk, Russian Federation
| | - Kristina E. Trifonova
- The State Research Center of Virology and Biotechnology VECTOR, 630559 Koltsovo, Russian Federation
| | - Maria S. Fufaeva
- Research Institute of Experimental and Clinical Medicine, 2 Timakova st., 630117 Novosibirsk, Russian Federation
| | - Evgeniy I. Kretov
- Meshalkin Siberian Federal Biomedical Research Center, 15 Rechkunovskaya
st., 630055 Novosibirsk, Russian Federation
| | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russian Federation
- Novosibirsk State University, 2 Pirogova
Str., Novosibirsk 630090, Russian Federation
| | - Alexander F. Poveshchenko
- Research Institute of Clinical and Experimental Lymphology−Branch of the ICG SB RAS, 2 Timakova
st., 630060 Novosibirsk, Russian Federation
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - Michael A. Shestopalov
- Research Institute of Experimental and Clinical Medicine, 2 Timakova st., 630117 Novosibirsk, Russian Federation
- Research Institute of Clinical and Experimental Lymphology−Branch of the ICG SB RAS, 2 Timakova
st., 630060 Novosibirsk, Russian Federation
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russian Federation
- Novosibirsk State University, 2 Pirogova
Str., Novosibirsk 630090, Russian Federation
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15
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Evtushok DV, Melnikov AR, Vorotnikova NA, Vorotnikov YA, Ryadun AA, Kuratieva NV, Kozyr KV, Obedinskaya NR, Kretov EI, Novozhilov IN, Mironov YV, Stass DV, Efremova OA, Shestopalov MA. A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes. Dalton Trans 2017; 46:11738-11747. [DOI: 10.1039/c7dt01919j] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Octahedral W cluster complexes have more intensive X-ray excited optical luminescence than Mo ones.
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