1
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Přibyl T, Rumlová M, Mikyšková R, Reiniš M, Kaňa A, Škoch K, Zelenka J, Kirakci K, Ruml T, Lang K. PEGylated Molybdenum-Iodine Nanocluster as a Promising Radiodynamic Agent against Prostatic Adenocarcinoma. Inorg Chem 2024; 63:4419-4428. [PMID: 38364266 PMCID: PMC10915794 DOI: 10.1021/acs.inorgchem.4c00084] [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: 01/08/2024] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/18/2024]
Abstract
The combination of photodynamic therapy and radiotherapy has given rise to a modality called radiodynamic therapy (RDT), based on reactive oxygen species-producing radiosensitizers. The production of singlet oxygen, O2(1Δg), by octahedral molybdenum (Mo6) clusters upon X-ray irradiation allows for simplification of the architecture of radiosensitizing systems. In this context, we prepared a radiosensitizing system using copper-free click chemistry between a Mo6 cluster bearing azido ligands and the homo-bifunctional linker bis-dPEG11-DBCO. The resulting compound formed nanoparticles, which featured production of O2(1Δg) and efficient cellular uptake, leading to remarkable photo- and radiotoxic effects against the prostatic adenocarcinoma TRAMP-C2 cell line. Spheroids of TRAMP-C2 cells were also used for evaluation of toxicity and phototoxicity. In vivo experiments on a mouse model demonstrated that subcutaneous injection of the nanoparticles is a safe administration mode at a dose of up to 0.08 g kg-1. The reported results confirm the relevancy of Mo6-based radiosensitizing nanosystems for RDT.
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Affiliation(s)
- Tomáš Přibyl
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Michaela Rumlová
- Department
of Biotechnology, University of Chemistry
and Technology Prague, 166
28 Praha, Czech Republic
| | - Romana Mikyšková
- Institute
of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1084, 142 20 Praha, Czech Republic
| | - Milan Reiniš
- Institute
of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1084, 142 20 Praha, Czech Republic
| | - Antonín Kaňa
- Department
of Analytical Chemistry, University of Chemistry
and Technology Prague, 166
28 Praha, Czech Republic
| | - Karel Škoch
- Institute
of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
| | - Jaroslav Zelenka
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Kaplan Kirakci
- Institute
of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
| | - Tomáš Ruml
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Kamil Lang
- Institute
of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
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2
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Chang B, Chen J, Bao J, Sun T, Cheng Z. Molecularly Engineered Room-Temperature Phosphorescence for Biomedical Application: From the Visible toward Second Near-Infrared Window. Chem Rev 2023; 123:13966-14037. [PMID: 37991875 DOI: 10.1021/acs.chemrev.3c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Phosphorescence, characterized by luminescent lifetimes significantly longer than that of biological autofluorescence under ambient environment, is of great value for biomedical applications. Academic evidence of fluorescence imaging indicates that virtually all imaging metrics (sensitivity, resolution, and penetration depths) are improved when progressing into longer wavelength regions, especially the recently reported second near-infrared (NIR-II, 1000-1700 nm) window. Although the emission wavelength of probes does matter, it is not clear whether the guideline of "the longer the wavelength, the better the imaging effect" is still suitable for developing phosphorescent probes. For tissue-specific bioimaging, long-lived probes, even if they emit visible phosphorescence, enable accurate visualization of large deep tissues. For studies dealing with bioimaging of tiny biological architectures or dynamic physiopathological activities, the prerequisite is rigorous planning of long-wavelength phosphorescence, being aware of the cooperative contribution of long wavelengths and long lifetimes for improving the spatiotemporal resolution, penetration depth, and sensitivity of bioimaging. In this Review, emerging molecular engineering methods of room-temperature phosphorescence are discussed through the lens of photophysical mechanisms. We highlight the roles of phosphorescence with emission from visible to NIR-II windows toward bioapplications. To appreciate such advances, challenges and prospects in rapidly growing studies of room-temperature phosphorescence are described.
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Affiliation(s)
- Baisong Chang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jie Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jiasheng Bao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264000, China
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3
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Guégan R, Cheng X, Huang X, Němečková Z, Kubáňová M, Zelenka J, Ruml T, Grasset F, Sugahara Y, Lang K, Kirakci K. Graphene Oxide Sheets Decorated with Octahedral Molybdenum Cluster Complexes for Enhanced Photoinactivation of Staphylococcus aureus. Inorg Chem 2023; 62:14243-14251. [PMID: 37608779 PMCID: PMC10481373 DOI: 10.1021/acs.inorgchem.3c01502] [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: 05/09/2023] [Indexed: 08/24/2023]
Abstract
The emergence of multidrug-resistant microbial pathogens poses a significant threat, severely limiting the options for effective antibiotic therapy. This challenge can be overcome through the photoinactivation of pathogenic bacteria using materials generating reactive oxygen species upon exposure to visible light. These species target vital components of living cells, significantly reducing the likelihood of resistance development by the targeted pathogens. In our research, we have developed a nanocomposite material consisting of an aqueous colloidal suspension of graphene oxide sheets adorned with nanoaggregates of octahedral molybdenum cluster complexes. The negative charge of the graphene oxide and the positive charge of the nanoaggregates promoted their electrostatic interaction in aqueous medium and close cohesion between the colloids. Upon illumination with blue light, the colloidal system exerted a potent antibacterial effect against planktonic cultures of Staphylococcus aureus largely surpassing the individual contributions of the components. The underlying mechanism behind this phenomenon lies in the photoinduced electron transfer from the nanoaggregates of the cluster complexes to the graphene oxide sheets, which triggers the generation of reactive oxygen species. Thus, leveraging the unique properties of graphene oxide and light-harvesting octahedral molybdenum cluster complexes can open more effective and resilient antibacterial strategies.
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Affiliation(s)
- Régis Guégan
- Global
Center for Science and Engineering, Waseda
University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Interfaces,
Confinement, Matériaux et Nanostructures ICMN-UMR 7374, CNRS-Université d’Orléans, 1 Rue de la Férollerie, Orléans 45100, France
| | - Xiaoxue Cheng
- Department
of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Xiang Huang
- Department
of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Zuzana Němečková
- Institute
of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 250 68, Czech Republic
| | - Michaela Kubáňová
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, Praha 166 28, Czech Republic
| | - Jaroslav Zelenka
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, Praha 166 28, Czech Republic
| | - Tomáš Ruml
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, Praha 166 28, Czech Republic
| | - Fabien Grasset
- Univ Rennes,
CNRS, Institut des Sciences Chimiques de Rennes (ISCR)-UMR 6226, Rennes 35000, France
- CNRS-Saint-Gobain-NIMS,
IRL3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Yoshiyuki Sugahara
- Department
of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami
Memorial Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
| | - Kamil Lang
- Institute
of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 250 68, Czech Republic
| | - Kaplan Kirakci
- Institute
of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 250 68, Czech Republic
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4
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Pronina EV, Vorotnikov YA, Pozmogova TN, Tsygankova AR, Kirakci K, Lang K, Shestopalov MA. Multifunctional Oxidized Dextran as a Matrix for Stabilization of Octahedral Molybdenum and Tungsten Iodide Clusters in Aqueous Media. Int J Mol Sci 2023; 24:10010. [PMID: 37373156 DOI: 10.3390/ijms241210010] [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: 05/25/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Due to their high abundance, polymeric character, and chemical tunability, polysaccharides are perfect candidates for the stabilization of photoactive nanoscale objects, which are of great interest in modern science but can be unstable in aqueous media. In this work, we have demonstrated the relevance of oxidized dextran polysaccharide, obtained via a simple reaction with H2O2, towards the stabilization of photoactive octahedral molybdenum and tungsten iodide cluster complexes [M6I8}(DMSO)6](NO3)4 in aqueous and culture media. The cluster-containing materials were obtained by co-precipitation of the starting reagents in DMSO solution. According to the data obtained, the amount and ratio of functional carbonyl and carboxylic groups as well as the molecular weight of oxidized dextran strongly affect the extent of stabilization, i.e., high loading of aldehyde groups and high molecular weight increase the stability, while acidic groups have some negative impact on the stability. The most stable material based on the tungsten cluster complex exhibited low dark and moderate photoinduced cytotoxicity, which together with high cellular uptake makes these polymers promising for the fields of bioimaging and PDT.
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Affiliation(s)
- Ekaterina V Pronina
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Yuri A Vorotnikov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Tatiana N Pozmogova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Alphiya R Tsygankova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
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5
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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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6
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Evtushok DV, Sukhikh TS, Ivanov AA, Gayfulin YM, Eltsov IV, Stass DV, Ryadun AA, Zubareva AP, Shestopalov MA. Improved Synthesis of (TBA) 2[W 6Br 14] Paving the Way to Further Study of Bromide Cluster Complexes. Inorg Chem 2023; 62:4934-4946. [PMID: 36920338 DOI: 10.1021/acs.inorgchem.2c04426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Octahedral cluster complexes of molybdenum and tungsten, [M6X8Y6]n- (M = Mo, W; X, Y = Cl, Br, I), are promising active components in various fields, including biomedicine and solar energy. Cluster complexes draw considerable attention due to their X-ray opacity, red/near-IR luminescence, and ability to convert triplet molecular oxygen to active singlet oxygen under UV and visible irradiation. Among the octahedral cluster complexes of molybdenum and tungsten, compounds with a {W6Br8}4+ core are the least studied. There are only a few examples of compounds with substituted terminal ligands, and their properties are not well understood. Among other things, this is due to more labor-intensive and expensive methods for obtaining the starting compounds in comparison with molybdenum counterparts. In this paper, we describe the synthesis of an octahedral cluster complex, (TBA)2[W6Br14] (TBA+ = tetrabutylammonium), in gram quantities, starting from simple substances─W, Br2, and Bi─in 70% yield. The formation of pentanuclear tungsten cluster complexes was recorded as a byproduct. Compounds with substituted terminal ligands (TBA)2[W6Br8Y6] (Y = NO3, Cl, I) were obtained. We also discuss the instability of (TBA)2[W6Br8(NO3)6] under light exposure, the optical properties of a series of compounds (TBA)2[W6Br8Y6] (Y = Cl, Br, I), and the effect of terminal ligands on the chemical shifts in 183W NMR spectra in dimethyl sulfoxide-d6. The presented approach to the synthesis of one of the main precursors of various bromide cluster complexes on a gram scale can stimulate the study of their properties and development of new functional materials based on them.
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Affiliation(s)
- Darya V Evtushok
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Taisiya S Sukhikh
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Anton A Ivanov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Yakov M Gayfulin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Ilia V Eltsov
- Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russian Federation
| | - Dmitri V Stass
- Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russian Federation.,Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Institutskaya Street, Novosibirsk 630090, Russia
| | - Alexey A Ryadun
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Anna P Zubareva
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences (SB RAS), 3 Academician Lavrentiev Avenue, Novosibirsk 630090, Russian Federation
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7
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Kumar S, Choudhary M. Design and molecular docking studies of {N 1-[2-(amino)ethyl]ethane-1,2-diamine}-[tris(oxido)]-molybdenum(VI) complex as a potential antivirus drug: from synthesis to structure. J COORD CHEM 2023. [DOI: 10.1080/00958972.2023.2173589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sunil Kumar
- Department of Chemistry, National Institute of Technology Patna, Patna, Bihar, India
| | - Mukesh Choudhary
- Department of Chemistry, National Institute of Technology Patna, Patna, Bihar, India
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8
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Medeiros HCD, Yang C, Herrera CK, Broadwater D, Ensink E, Bates M, Lunt RR, Lunt SY. Phosphorescent Metal Halide Nanoclusters for Tunable Photodynamic Therapy. Chemistry 2023; 29:e202202881. [PMID: 36351205 PMCID: PMC9898232 DOI: 10.1002/chem.202202881] [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: 09/15/2022] [Revised: 10/29/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022]
Abstract
Photodynamic therapy (PDT) is currently limited by the inability of photosensitizers (PSs) to enter cancer cells and generate sufficient reactive oxygen species. Utilizing phosphorescent triplet states of novel PSs to generate singlet oxygen offers exciting possibilities for PDT. Here, we report phosphorescent octahedral molybdenum (Mo)-based nanoclusters (NC) with tunable toxicity for PDT of cancer cells without use of rare or toxic elements. Upon irradiation with blue light, these molecules are excited to their singlet state and then undergo intersystem crossing to their triplet state. These NCs display surprising tunability between their cellular cytotoxicity and phototoxicity by modulating the apical halide ligand with a series of short chain fatty acids from trifluoroacetate to heptafluorobutyrate. The NCs are effective in PDT against breast, skin, pancreas, and colon cancer cells as well as their highly metastatic derivatives, demonstrating the robustness of these NCs in treating a wide variety of aggressive cancer cells. Furthermore, these NCs are internalized by cancer cells, remain in the lysosome, and can be modulated by the apical ligand to produce singlet oxygen. Thus, (Mo)-based nanoclusters are an excellent platform for optimizing PSs. Our results highlight the profound impact of molecular nanocluster chemistry in PDT applications.
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Affiliation(s)
- Hyllana C. D. Medeiros
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, United States
| | - Chenchen Yang
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, United States
| | - Christopher K. Herrera
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, United States
| | - Deanna Broadwater
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, United States
| | - Elliot Ensink
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, United States
| | - Matthew Bates
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, United States
| | - Richard R. Lunt
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, United States.,Department of Physics and Astronomy, Michigan State University, East Lansing, MI, 48824, United States.,Correspondence: Sophia Y. Lunt, Ph.D.,, Richard R. Lunt, Ph.D.,
| | - Sophia Y. Lunt
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, United States.,Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, United States.,Correspondence: Sophia Y. Lunt, Ph.D.,, Richard R. Lunt, Ph.D.,
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9
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Verger A, Dollo G, Martinais S, Molard Y, Cordier S, Amela-Cortes M, Brandhonneur N. Molybdenum-Iodine Cluster Loaded Polymeric Nanoparticles Allowing a Coupled Therapeutic Action with Low Side Toxicity for Treatment of Ovarian Cancer. J Pharm Sci 2022; 111:3377-3383. [PMID: 36126760 DOI: 10.1016/j.xphs.2022.09.010] [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: 07/06/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 01/05/2023]
Abstract
The ability of cancer cells to develop resistance to anti-cancer drugs, known as multidrug resistance, remains a major cause of tumor recurrence and cancer metastasis. This work explores the double mechanism of toxicity of (D, L-lactide-co-glycolide) acid (PLGA) nanoparticles encapsulating a molybdenum cluster compound, namely Cs2[{Mo6I8}(OOCC2F5)6] (CMIF). Hemocompatibility and biocompatibility assays show the safe potential of CMIF loaded nanoparticles (CNPs) as delivery systems intended for tumor targeting for PDT of ovarian cancer with a slight hemolytic activity and a lack of toxicity up to 50 µM CMIF concentration. Cellular uptake shows a preferential uptake of CNPs in lysosomes, which is not interfering with CMIF activity. The double mechanism of CNPs consists in a production of ROS and a DNA damage activity, from 5 µM and 0.5 µM respectively (CMIF concentration). The cellular death mechanism comprises 80% of necrosis and 20% of direct apoptosis by direct DNA damages. This work confirms CMIF loaded PLGA nanoparticles as an efficient and relevant delivery system for PDT.
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Affiliation(s)
- A Verger
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - G Dollo
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France; CHU de Rennes, Pôle Hospitalo-Universitaire de Pharmacie, F-35033, Rennes, France
| | - S Martinais
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - Y Molard
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - S Cordier
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - M Amela-Cortes
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France
| | - N Brandhonneur
- Univ Rennes, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France.
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10
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Bardin VA, Vorotnikov YA, Stass DV, Vorotnikova NA, Shestopalov MA. Oxygen-Sensitive Photo- and Radioluminescent Polyurethane Nanoparticles Modified with Octahedral Iodide Tungsten Clusters. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3580. [PMID: 36296769 PMCID: PMC9608458 DOI: 10.3390/nano12203580] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
The development of cancer treatment techniques able to cure tumors located deep in the body is an urgent task for scientists and physicians. One of the most promising methods is X-ray-induced photodynamic therapy (X-PDT), since X-rays have unlimited penetration through tissues. In this work, octahedral iodide tungsten clusters, combining the properties of a scintillator and photosensitizer, are considered as a key component of nanosized polyurethane (pU) particles in the production of materials promising for X-PDT. Cluster-containing pU nanoparticles obtained here demonstrate bright photo- and X-ray-induced emission in both solid and water dispersion, great efficiency in the generation of singlet oxygen, and high sensitivity regarding photoluminescence intensity in relation to oxygen concentration. Additionally, incorporation of the cluster complex into the pU matrix greatly increases its stability against hydrolysis in water and under X-rays.
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Affiliation(s)
- Vyacheslav A. Bardin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Yuri A. Vorotnikov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Dmitri V. Stass
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya St., 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, 2 Pirogova St., 630090 Novosibirsk, Russia
| | - Natalya A. Vorotnikova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Michael A. Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
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11
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Tavares MR, Kirakci K, Kotov N, Pechar M, Lang K, Pola R, Etrych T. Octahedral Molybdenum Cluster-Based Nanomaterials for Potential Photodynamic Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3350. [PMID: 36234477 PMCID: PMC9565569 DOI: 10.3390/nano12193350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/16/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Photo/radiosensitizers, such as octahedral molybdenum clusters (Mo6), have been intensively studied for photodynamic applications to treat various diseases. However, their delivery to the desired target can be hampered by its limited solubility, low stability in physiological conditions, and inappropriate biodistribution, thus limiting the therapeutic effect and increasing the side effects of the therapy. To overcome such obstacles and to prepare photofunctional nanomaterials, we employed biocompatible and water-soluble copolymers based on N-(2-hydroxypropyl)methacrylamide (pHPMA) as carriers of Mo6 clusters. Several strategies based on electrostatic, hydrophobic, or covalent interactions were employed for the formation of polymer-cluster constructs. Importantly, the luminescent properties of the Mo6 clusters were preserved upon association with the polymers: all polymer-cluster constructs exhibited an effective quenching of their excited states, suggesting a production of singlet oxygen (O2(1Δg)) species which is a major factor for a successful photodynamic treatment. Even though the colloidal stability of all polymer-cluster constructs was satisfactory in deionized water, the complexes prepared by electrostatic and hydrophobic interactions underwent severe aggregation in phosphate buffer saline (PBS) accompanied by the disruption of the cohesive forces between the cluster and polymer molecules. On the contrary, the conjugates prepared by covalent interactions notably displayed colloidal stability in PBS in addition to high luminescence quantum yields, suggesting that pHPMA is a suitable nanocarrier for molybdenum cluster-based photosensitizers intended for photodynamic applications.
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Affiliation(s)
- Marina Rodrigues Tavares
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského Náměstí 2, 162 06 Prague 6, Czech Republic
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, 250 68 Husinec-Řež 1001, Czech Republic
| | - Nikolay Kotov
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského Náměstí 2, 162 06 Prague 6, Czech Republic
| | - Michal Pechar
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského Náměstí 2, 162 06 Prague 6, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, 250 68 Husinec-Řež 1001, Czech Republic
| | - Robert Pola
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského Náměstí 2, 162 06 Prague 6, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského Náměstí 2, 162 06 Prague 6, Czech Republic
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12
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de la Torre C, Gavara R, García-Fernández A, Mikhaylov M, Sokolov MN, Miravet JF, Sancenón F, Martínez-Máñez R, Galindo F. Enhancement of photoactivity and cellular uptake of (Bu 4N) 2[Mo 6I 8(CH 3COO) 6] complex by loading on porous MCM-41 support. Photodynamic studies as an anticancer agent. BIOMATERIALS ADVANCES 2022; 140:213057. [PMID: 36007463 DOI: 10.1016/j.bioadv.2022.213057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/25/2022]
Abstract
The incorporation by ionic assembly of the hexanuclear molybdenum cluster (Bu4N)2[Mo6I8(CH3CO2)6] (1) in amino-decorated mesoporous silica nanoparticles MCM-41, has yielded the new molybdenum-based hybrid photosensitizer 1@MCM-41. The new photoactive material presents a high porosity, due to the intrinsic high specific surface area of MCM-41 nanoparticles (989 m2 g-1) which is responsible for the good dispersion of the hexamolybdenum clusters on the nanoparticles surface, as observed by STEM analysis. The hybrid photosensitizer can generate efficiently singlet oxygen, which was demonstrated by using the benchmark photooxygenation reaction of 9,10-anthracenediyl-bis(methylene)dimalonic acid (ABDA) in water. The photodynamic therapy activity has been tested using LED light as an irradiation source (λirr ~ 400-700 nm; 15.6 mW/cm2). The results show a good activity of the hybrid photosensitizer against human cervical cancer (HeLa) cells, reducing up to 70 % their viability after 20 min of irradiation, whereas low cytotoxicity is detected in the darkness. The main finding of this research is that the incorporation of molybdenum complexes at porous MCM-41 supports enhances their photoactivity and improves cellular uptake, compared to free clusters.
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Affiliation(s)
- Cristina de la Torre
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universitat Politècnica de València - Universidad de Valencia, Departamento de Química Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain
| | - Raquel Gavara
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
| | - Alba García-Fernández
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universitat Politècnica de València - Universidad de Valencia, Departamento de Química Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain; Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Maxim Mikhaylov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Prosp., 630090 Novosibirsk, Russia
| | - Maxim N Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Prosp., 630090 Novosibirsk, Russia
| | - Juan F Miravet
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universitat Politècnica de València - Universidad de Valencia, Departamento de Química Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain; Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain; Unidad Mixta de Investigación en Nanomedicina y Sensores, Universitat Politècnica de València, IIS La Fe, Valencia, Spain
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universitat Politècnica de València - Universidad de Valencia, Departamento de Química Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain; Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain; Unidad Mixta de Investigación en Nanomedicina y Sensores, Universitat Politècnica de València, IIS La Fe, Valencia, Spain.
| | - Francisco Galindo
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain.
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13
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Koncošová M, Rumlová M, Mikyšková R, Reiniš M, Zelenka J, Ruml T, Kirakci K, Lang K. Avenue to X-ray-induced photodynamic therapy of prostatic carcinoma with octahedral molybdenum cluster nanoparticles. J Mater Chem B 2022; 10:3303-3310. [PMID: 35380154 DOI: 10.1039/d2tb00141a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
X-Ray-induced photodynamic therapy represents a suitable modality for the treatment of various malignancies. It is based on the production of reactive oxygen species by radiosensitizing nanoparticles activated by X-rays. Hence, it allows overcoming the depth-penetration limitations of conventional photodynamic therapy and, at the same time, reducing the dose needed to eradicate cancer in the frame of radiotherapy treatment. The direct production of singlet oxygen by octahedral molybdenum cluster complexes upon X-ray irradiation is a promising avenue in order to simplify the architecture of radiosensitizing systems. One such complex was utilized to prepare water-stable nanoparticles using the solvent displacement method. The nanoparticles displayed intense red luminescence in aqueous media, efficiently quenched by oxygen to produce singlet oxygen, resulting in a substantial photodynamic effect under blue light irradiation. A robust radiosensitizing effect of the nanoparticles was demonstrated in vitro against TRAMP-C2 murine prostatic carcinoma cells at typical therapeutic X-ray doses. Injection of a suspension of the nanoparticles to a mouse model revealed the absence of acute toxicity as evidenced by the invariance of key physiological parameters. This study paves the way for the application of octahedral molybdenum cluster-based radiosensitizers in X-ray-induced photodynamic therapy and its translation to in vivo experiments.
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Affiliation(s)
- Martina Koncošová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Michaela Rumlová
- Department of Biotechnology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Romana Mikyšková
- Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1084, 142 20 Praha, Czech Republic
| | - Milan Reiniš
- Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1084, 142 20 Praha, Czech Republic
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic.
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic.
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14
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Kirakci K, Kubáňová M, Přibyl T, Rumlová M, Zelenka J, Ruml T, Lang K. A Cell Membrane Targeting Molybdenum-Iodine Nanocluster: Rational Ligand Design toward Enhanced Photodynamic Activity. Inorg Chem 2022; 61:5076-5083. [PMID: 35293732 DOI: 10.1021/acs.inorgchem.2c00040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of singlet oxygen photosensitizers, which target specific cellular organelles, constitutes a pertinent endeavor to optimize the efficiency of photodynamic therapy. Targeting of the cell membrane eliminates the need for endocytosis of drugs that can lead to toxicity, intracellular degradation, or drug resistance. In this context, we utilized copper-free click chemistry to prepare a singlet oxygen photosensitizing complex, made of a molybdenum-iodine nanocluster stabilized by triazolate apical ligands. In phosphate-buffered saline, the complex formed nanoaggregates with a positive surface charge due to the protonatable amine function of the apical ligands. These nanoaggregates targeted cell membranes and caused an eminent blue-light phototoxic effect against HeLa cells at nanomolar concentrations, inducing apoptotic cell death, while having no dark toxicity at physiologically relevant concentrations. The properties of this complex were compared to those of a negatively charged parent complex to highlight the dominant effect of the nature of apical ligands on biological properties of the nanocluster. These two complexes also exerted (photo)antibacterial effects on several pathogenic strains in the form of planktonic cultures and biofilms. Overall, we demonstrated that the rational design of apical ligands toward cell membrane targeting leads to enhanced photodynamic efficiency.
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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
| | - Michaela Kubáňová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Tomáš Přibyl
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Michaela Rumlová
- Department of Biotechnology, University of Chemistry and Technology Prague, 166 28 Praha, Czech Republic
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, 166 28 Praha 6, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
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15
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Badon IW, Kim C, Lim JM, Duy MK, Vales TP, Kang D, Cho S, Lee J, Kim HJ, Yang J. Mitochondrion-Targeting PEGylated BODIPY Dyes for Near-Infrared Cell Imaging and Photodynamic Therapy. J Mater Chem B 2022; 10:1196-1209. [DOI: 10.1039/d1tb02393d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene-based photosensitizers (AmBXI, X = H, M, Br) featuring a cationic mitochondrion-targeting group and near-infrared (NIR) absorption was synthesized. After extending the photosensitizers’ π–π conjugation via Knoevenagel...
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16
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Mikhailov MA, Berezin AS, Sukhikh TS, Sheven’ DG, Gushchin AL, Sokolov MN. PROPIOLATE CLUSTER COMPLEXES (Bu4N)2[Mo6X8(OOC–C≡CH)6] (X = Br, I). J STRUCT CHEM+ 2021. [DOI: 10.1134/s002247662112009x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Pantulap U, Arango-Ospina M, Boccaccini AR. Bioactive glasses incorporating less-common ions to improve biological and physical properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 33:3. [PMID: 34940923 PMCID: PMC8702415 DOI: 10.1007/s10856-021-06626-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/07/2021] [Indexed: 05/29/2023]
Abstract
Bioactive glasses (BGs) have been a focus of research for over five decades for several biomedical applications. Although their use in bone substitution and bone tissue regeneration has gained important attention, recent developments have also seen the expansion of BG applications to the field of soft tissue engineering. Hard and soft tissue repair therapies can benefit from the biological activity of metallic ions released from BGs. These metallic ions are incorporated in the BG network not only for their biological therapeutic effects but also in many cases for influencing the structure and processability of the glass and to impart extra functional properties. The "classical" elements in silicate BG compositions are silicon (Si), phosphorous (P), calcium (Ca), sodium (Na), and potassium (K). In addition, other well-recognized biologically active ions have been incorporated in BGs to provide osteogenic, angiogenic, anti-inflammatory, and antibacterial effects such as zinc (Zn), magnesium (Mg), silver (Ag), strontium (Sr), gallium (Ga), fluorine (F), iron (Fe), cobalt (Co), boron (B), lithium (Li), titanium (Ti), and copper (Cu). More recently, rare earth and other elements considered less common or, some of them, even "exotic" for biomedical applications, have found room as doping elements in BGs to enhance their biological and physical properties. For example, barium (Ba), bismuth (Bi), chlorine (Cl), chromium (Cr), dysprosium (Dy), europium (Eu), gadolinium (Gd), ytterbium (Yb), thulium (Tm), germanium (Ge), gold (Au), holmium (Ho), iodine (I), lanthanum (La), manganese (Mn), molybdenum (Mo), nickel (Ni), niobium (Nb), nitrogen (N), palladium (Pd), rubidium (Rb), samarium (Sm), selenium (Se), tantalum (Ta), tellurium (Te), terbium (Tb), erbium (Er), tin (Sn), tungsten (W), vanadium (V), yttrium (Y) as well as zirconium (Zr) have been included in BGs. These ions have been found to be particularly interesting for enhancing the biological performance of doped BGs in novel compositions for tissue repair (both hard and soft tissue) and for providing, in some cases, extra functionalities to the BG, for example fluorescence, luminescence, radiation shielding, anti-inflammatory, and antibacterial properties. This review summarizes the influence of incorporating such less-common elements in BGs with focus on tissue engineering applications, usually exploiting the bioactivity of the BG in combination with other functional properties imparted by the presence of the added elements.
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Affiliation(s)
- Usanee Pantulap
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Marcela Arango-Ospina
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany.
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18
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Chelushkin PS, Shakirova JR, Kritchenkov IS, Baigildin VA, Tunik SP. Phosphorescent NIR emitters for biomedicine: applications, advances and challenges. Dalton Trans 2021; 51:1257-1280. [PMID: 34878463 DOI: 10.1039/d1dt03077a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Application of NIR (near-infrared) emitting transition metal complexes in biomedicine is a rapidly developing area of research. Emission of this class of compounds in the "optical transparency windows" of biological tissues and the intrinsic sensitivity of their phosphorescence to oxygen resulted in the preparation of several commercial oxygen sensors capable of deep (up to whole-body) and quantitative mapping of oxygen gradients suitable for in vivo experimental studies. In addition to this achievement, the last decade has also witnessed the increased growth of successful alternative applications of NIR phosphors that include (i) site-specific in vitro and in vivo visualization of sophisticated biological models ranging from 3D cell cultures to intact animals; (ii) sensing of various biologically relevant analytes, such as pH, reactive oxygen and nitrogen species, RedOx agents, etc.; (iii) and several therapeutic applications such as photodynamic (PDT), photothermal (PTT), and photoactivated cancer (PACT) therapies as well as their combinations with other therapeutic and imaging modalities to yield new variants of combined therapies and theranostics. Nevertheless, emerging applications of these compounds in experimental biomedicine and their implementation as therapeutic agents practically applicable in PDT, PTT, and PACT face challenges related to a critically important improvement of their photophysical and physico-chemical characteristics. This review outlines the current state of the art and achievements of the last decade and stresses the most promising trends, major development prospects, and challenges in the design of NIR phosphors suitable for biomedical applications.
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Affiliation(s)
- Pavel S Chelushkin
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr., 26, 198504, St. Petersburg, Russia.
| | - Julia R Shakirova
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr., 26, 198504, St. Petersburg, Russia.
| | - Ilya S Kritchenkov
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr., 26, 198504, St. Petersburg, Russia.
| | - Vadim A Baigildin
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr., 26, 198504, St. Petersburg, Russia.
| | - Sergey P Tunik
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr., 26, 198504, St. Petersburg, Russia.
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19
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Youf R, Müller M, Balasini A, Thétiot F, Müller M, Hascoët A, Jonas U, Schönherr H, Lemercier G, Montier T, Le Gall T. Antimicrobial Photodynamic Therapy: Latest Developments with a Focus on Combinatory Strategies. Pharmaceutics 2021; 13:1995. [PMID: 34959277 PMCID: PMC8705969 DOI: 10.3390/pharmaceutics13121995] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) has become a fundamental tool in modern therapeutics, notably due to the expanding versatility of photosensitizers (PSs) and the numerous possibilities to combine aPDT with other antimicrobial treatments to combat localized infections. After revisiting the basic principles of aPDT, this review first highlights the current state of the art of curative or preventive aPDT applications with relevant clinical trials. In addition, the most recent developments in photochemistry and photophysics as well as advanced carrier systems in the context of aPDT are provided, with a focus on the latest generations of efficient and versatile PSs and the progress towards hybrid-multicomponent systems. In particular, deeper insight into combinatory aPDT approaches is afforded, involving non-radiative or other light-based modalities. Selected aPDT perspectives are outlined, pointing out new strategies to target and treat microorganisms. Finally, the review works out the evolution of the conceptually simple PDT methodology towards a much more sophisticated, integrated, and innovative technology as an important element of potent antimicrobial strategies.
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Affiliation(s)
- Raphaëlle Youf
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Max Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Ali Balasini
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Franck Thétiot
- Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 6521, Université de Brest (UBO), CS 93837, 29238 Brest, France
| | - Mareike Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Alizé Hascoët
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Ulrich Jonas
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Gilles Lemercier
- Coordination Chemistry Team, Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 7312, Institut de Chimie Moléculaire de Reims (ICMR), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 2, 51687 Reims, France
| | - Tristan Montier
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
- CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares Maladies Neuromusculaires, 29200 Brest, France
| | - Tony Le Gall
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
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20
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Pronina EV, Pozmogova TN, Vorotnikov YA, Ivanov AA, Shestopalov MA. The role of hydrolysis in biological effects of molybdenum cluster with DMSO ligands. J Biol Inorg Chem 2021; 27:111-119. [PMID: 34782931 DOI: 10.1007/s00775-021-01914-3] [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: 09/06/2021] [Accepted: 10/28/2021] [Indexed: 11/25/2022]
Abstract
Biological applications of octahedral molybdenum cluster complexes are complicated by their hydrolytic instability, since hydrolysis leads to irreversible changes in the structure and properties of these compounds. On the other hand, if such changes are thoroughly investigated and understood, the hydrolysis process can become an important tool for regulating specific biological effects of the clusters. In this work, we demonstrate how the luminescence and biological properties (cellular uptake, cytotoxicity in the dark and photodynamic effect) of highly unstable cluster complex [{Mo6I8}(DMSO)6](NO3)4 change along with the degree of hydrolysis. Particularly, cluster solution preliminarily aged in water demonstrated lower dark and higher photoinduced cytotoxicity and higher cellular uptake in comparison with fresh solution.
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Affiliation(s)
- Ekaterina V Pronina
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090, Novosibirsk, Russia
| | - Tatiana N Pozmogova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090, Novosibirsk, Russia.,SPF-Vivarium, Institute of Cytology and Genetics SB RAS, 10 Acad. Lavrentieva ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 1 Pirogova st., 630090, Novosibirsk, Russia
| | - Yuri A Vorotnikov
- 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
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090, Novosibirsk, Russia
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21
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Takano Y, Hirata E, Ushijima N, Harashima H, Yamada Y. An effective in vivo mitochondria-targeting nanocarrier combined with a π-extended porphyrin-type photosensitizer. NANOSCALE ADVANCES 2021; 3:5919-5927. [PMID: 36132667 PMCID: PMC9419188 DOI: 10.1039/d1na00427a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/20/2021] [Indexed: 05/15/2023]
Abstract
A photochemical reaction mediated by light-activated molecules (photosensitizers) in photodynamic therapy (PDT) causes molecular oxygen to be converted into highly reactive oxygen species (ROS) that are beneficial for cancer therapy. As the active oxygen consumer and the primary regulator of apoptosis, mitochondria are known as an important target for optimizing PDT outcomes. However, most of the clinically used photosensitizers exhibited a poor tumor accumulation profile as well as lack of mitochondria targeting ability. Therefore, by applying a nanocarrier platform, mitochondria-specific delivery of photosensitizers can be materialized. The present research develops an effective mitochondria-targeting liposome-based nanocarrier system (MITO-Porter) encapsulating a π-extended porphyrin-type photosensitizer (rTPA), which results in a significant in vivo antitumor activity. A single PDT treatment of the rTPA-MITO-Porter resulted in a dramatic tumor inhibition against both human and murine tumors that had been xenografted in a mouse model. Furthermore, depolarization of the mitochondrial membrane was observed, implying the damage of the mitochondrial membrane due to the photochemical reaction that occurred specifically in the mitochondria of tumor cells. The findings presented herein serve to verify the significance of the mitochondria-targeted nanocarrier system for advancing the in vivo PDT effectivity in cancer therapy regardless of tumor type.
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Affiliation(s)
- Yuta Takano
- Research Institute for Electronic Science, Hokkaido University Kita-20 Nishi-10, Kita-ku Sapporo 001-0020 Japan
- Graduate School of Environmental Science, Hokkaido University Sapporo 060-0810 Japan
| | - Eri Hirata
- Faculty of Dental Medicine, Hokkaido University Sapporo 060-8586 Japan
| | - Natsumi Ushijima
- Faculty of Dental Medicine, Hokkaido University Sapporo 060-8586 Japan
| | - Hideyoshi Harashima
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University Kita-12 Nishi-6, Kita-ku Sapporo 060-0812 Japan
| | - Yuma Yamada
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University Kita-12 Nishi-6, Kita-ku Sapporo 060-0812 Japan
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22
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Inhibition of Mitochondrial Metabolism Leads to Selective Eradication of Cells Adapted to Acidic Microenvironment. Int J Mol Sci 2021; 22:ijms221910790. [PMID: 34639130 PMCID: PMC8509312 DOI: 10.3390/ijms221910790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/22/2021] [Accepted: 10/02/2021] [Indexed: 01/17/2023] Open
Abstract
Metabolic transformation of cancer cells leads to the accumulation of lactate and significant acidification in the tumor microenvironment. Both lactate and acidosis have a well-documented impact on cancer progression and negative patient prognosis. Here, we report that cancer cells adapted to acidosis are significantly more sensitive to oxidative damage induced by hydrogen peroxide, high-dose ascorbate, and photodynamic therapy. Higher lactate concentrations abrogate the sensitization. Mechanistically, acidosis leads to a drop in antioxidant capacity caused by a compromised supply of nicotinamide adenine dinucleotide phosphate (NADPH) derived from glucose metabolism. However, lactate metabolism in the Krebs cycle restores NADPH supply and antioxidant capacity. CPI-613 (devimistat), an anticancer drug candidate, selectively eradicates the cells adapted to acidosis through inhibition of the Krebs cycle and induction of oxidative stress while completely abrogating the protective effect of lactate. Simultaneous cell treatment with tetracycline, an inhibitor of the mitochondrial proteosynthesis, further enhances the cytotoxic effect of CPI-613 under acidosis and in tumor spheroids. While there have been numerous attempts to treat cancer by neutralizing the pH of the tumor microenvironment, we alternatively suggest considering tumor acidosis as the Achilles’ heel of cancer as it enables selective therapeutic induction of lethal oxidative stress.
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Guo X, Yang N, Ji W, Zhang H, Dong X, Zhou Z, Li L, Shen HM, Yao SQ, Huang W. Mito-Bomb: Targeting Mitochondria for Cancer Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007778. [PMID: 34510563 DOI: 10.1002/adma.202007778] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 06/12/2021] [Indexed: 05/22/2023]
Abstract
Cancer has been one of the most common life-threatening diseases for a long time. Traditional cancer therapies such as surgery, chemotherapy (CT), and radiotherapy (RT) have limited effects due to drug resistance, unsatisfactory treatment efficiency, and side effects. In recent years, photodynamic therapy (PDT), photothermal therapy (PTT), and chemodynamic therapy (CDT) have been utilized for cancer treatment owing to their high selectivity, minor resistance, and minimal toxicity. Accumulating evidence has demonstrated that selective delivery of drugs to specific subcellular organelles can significantly enhance the efficiency of cancer therapy. Mitochondria-targeting therapeutic strategies are promising for cancer therapy, which is attributed to the essential role of mitochondria in the regulation of cancer cell apoptosis, metabolism, and more vulnerable to hyperthermia and oxidative damage. Herein, the rational design, functionalization, and applications of diverse mitochondria-targeting units, involving organic phosphine/sulfur salts, quaternary ammonium (QA) salts, peptides, transition-metal complexes, guanidinium or bisguanidinium, as well as mitochondria-targeting cancer therapies including PDT, PTT, CDT, and others are summarized. This review aims to furnish researchers with deep insights and hints in the design and applications of novel mitochondria-targeting agents for cancer therapy.
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Affiliation(s)
- Xiaolu Guo
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Naidi Yang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Wenhui Ji
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Hang Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Xiao Dong
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Zhiqiang Zhou
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
| | - Han-Ming Shen
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Shao Q Yao
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211800, China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China
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Nguyen TKN, Bourgès C, Naka T, Grasset F, Dumait N, Cordier S, Mori T, Ohashi N, Uchikoshi T. Synthesis of novel hexamolybdenum cluster-functionalized copper hydroxide nanocomposites and its catalytic activity for organic molecule degradation. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2021; 22:758-771. [PMID: 34566493 PMCID: PMC8463035 DOI: 10.1080/14686996.2021.1961559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/08/2021] [Accepted: 07/18/2021] [Indexed: 06/01/2023]
Abstract
A novel heterogeneous catalytic nanomaterial based on a molybdenum cluster-based halide (MC) and a single-layered copper hydroxynitrate (CHN) was first prepared by colloidal processing under ambient conditions. The results of the elemental composition and crystalline pattern indicated that CHN was comprehensively synthesized with the support of the MC compound. The absorbing characteristic in the ultraviolet and near-infrared regions was promoted by both of the ingredients. The proper chemical interaction between the materials is a crucial reason to modify the structure of the MCs and only a small decrease in the magnetic susceptibility of CHN. The heterogeneous catalytic activity of the obtained MC@CHN material was found to have a high efficiency and excellent reuse when it is activated by hydrogen peroxide (H2O2) for the degrading reaction of the organic pollutant at room temperature. A reasonable catalytic mechanism was proposed to explain the distinct role of the copper compound, Mo6 compound, and H2O2 in the production of the radical hydroxyl ion. This novel nanomaterial will be an environmentally promising candidate for dye removal.
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Affiliation(s)
- Thi Kim Ngan Nguyen
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - Cédric Bourgès
- WPI International Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Takashi Naka
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - Fabien Grasset
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - Noée Dumait
- University Rennes-CNRS, UMR6226, Institut des Sciences Chimiques de Rennes (ISCR), Rennes, France
| | - Stéphane Cordier
- University Rennes-CNRS, UMR6226, Institut des Sciences Chimiques de Rennes (ISCR), Rennes, France
| | - Takao Mori
- WPI International Center for Materials Nanoarchitechtonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Naoki Ohashi
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - Tetsuo Uchikoshi
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Ibaraki, Japan
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Faizullin BA, Strelnik ID, Dayanova IR, Gerasimova TP, Kholin KV, Nizameev IR, Voloshina AD, Gubaidullin AT, Fedosimova SV, Mikhailov MA, Sokolov MN, Sibgatullina GV, Samigullin DV, Petrov KA, Karasik AA, Mustafina AR. Structure impact on photodynamic therapy and cellular contrasting functions of colloids constructed from dimeric Au(I) complex and hexamolybdenum clusters. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112355. [PMID: 34474903 DOI: 10.1016/j.msec.2021.112355] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/23/2021] [Accepted: 07/29/2021] [Indexed: 01/11/2023]
Abstract
Electrostatically driven self-assembly of [Au2L2]2+ (L is cyclic PNNP ligand) with [{Mo6I8}(L')6]2- (L' = I-, CH3COO-) in aqueous solutions is introduced as facile route for combination of therapeutic and cellular contrasting functions within heterometallic colloids (Mo6-Au2). The nature of L' affects the size and aggregation behavior of crystalline Mo6-Au2 aggregates, which in turn affect the luminescence of the cluster units incorporated into Mo6-Au2 colloids. The spin trap facilitated electron spin resonance spectroscopy technique indicates that the level of ROS generated by Mo6-Au2 colloids is also affected by their size. Both (L' = I-, CH3COO-) Mo6-Au2 colloids undergo cell internalization, which is enhanced by their assembly with poly-DL-lysine (PL) for L' = CH3COO-, but remains unchanged for L' = I-. The colloids PL-Mo6-Au2 (L' = CH3COO-) are visualized as huge crystalline aggregates both outside and inside the cell cytoplasm by confocal microscopy imaging of the incubated cells, while the smaller sized (30-50 nm) PL-Mo6-Au2 (L' = I-) efficiently stain the cell nuclei. Quantitative colocalization analysis of PL-Mo6-Au2 (L' = CH3COO-) in lysosomal compartments points to the fast endo-lysosomal escape of the colloids followed by their intracellular aggregation. The cytotoxicity of PL-Mo6-Au2 differs from that of Mo6 and Au2 blocks, predominantly acting through apoptotic pathway. The photodynamic therapeutic effect of the PL-Mo6-Au2 colloids on the cancer cells correlates with their intracellular trafficking and aggregation.
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Affiliation(s)
- Bulat A Faizullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation; Kazan (Volga region) Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russian Federation.
| | - Igor D Strelnik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Irina R Dayanova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Tatyana P Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Kirill V Kholin
- Kazan National Research Technical University named after A.N. Tupolev - KAI, 10 K. Marx str., 420111 Kazan, Russian Federation
| | - Irek R Nizameev
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Alexandra D Voloshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Aidar T Gubaidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Svetlana V Fedosimova
- Kazan (Volga region) Federal University, 18 Kremlyovskaya str., 420008 Kazan, Russian Federation
| | - Maxim A Mikhailov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russian Federation
| | - Maxim N Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russian Federation
| | - Guzel V Sibgatullina
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevski str., 420111 Kazan, Russian Federation
| | - Dmitry V Samigullin
- Kazan National Research Technical University named after A.N. Tupolev - KAI, 10 K. Marx str., 420111 Kazan, Russian Federation; Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevski str., 420111 Kazan, Russian Federation
| | - Konstantin A Petrov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Andrey A Karasik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
| | - Asiya R Mustafina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov str., 420088 Kazan, Russian Federation
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M. C. V, Joy F, Krishna P. M, T. P. V, Venkataraman SK, Agarwal AK, Nair Y, Kurup MRP. Novel dioxidomolybdenum complexes containing ONO chelators: Synthesis, physicochemical properties, crystal structures, Hirshfeld surface analysis, DNA binding/cleavage studies, docking, and in vitro cytotoxicity. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vineetha M. C.
- Department of Applied Chemistry Cochin University of Science and Technology Kochi India
- Department of Chemistry Sree Kerala Varma College Thrissur India
| | - Francis Joy
- Department of Chemistry CHRIST (Deemed to be University) Bengaluru India
| | - Murali Krishna P.
- Department of Chemistry Ramaiah Institute of Technology Bengaluru India
| | - Vinod T. P.
- Department of Chemistry CHRIST (Deemed to be University) Bengaluru India
| | | | - Anil K. Agarwal
- Discovery Chemistry Syngene International Limited Bengaluru India
| | - Yamuna Nair
- Department of Chemistry CHRIST (Deemed to be University) Bengaluru India
| | - M. R. Prathapachandra Kurup
- Department of Applied Chemistry Cochin University of Science and Technology Kochi India
- Department of Chemistry, School of Physical Sciences Central University of Kerala Periye, Kasaragod India
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27
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Lee SX, Tan CH, Mah WL, Wong RCS, Cheow YL, Sim KS, Tan KW. Synthesis of group 6 (chromium, molybdenum, and tungsten) photoCORMs as potential antimicrobial and anticancer agents. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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From molecules to nanovectors: Current state of the art and applications of photosensitizers in photodynamic therapy. Int J Pharm 2021; 604:120763. [PMID: 34098054 DOI: 10.1016/j.ijpharm.2021.120763] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/25/2021] [Accepted: 05/30/2021] [Indexed: 01/06/2023]
Abstract
Photodynamic therapy (PDT) is a concept based on a selective activation by light of drugs called photosensitizers (PS) leading to reactive oxygen species production responsible for cell destruction. Mechanisms of photodynamic reaction and cell photo-destruction following direct or indirect mechanisms will be presented as well as PS classification, from first generation molecules developed in the 1960 s to third generation vectorized PS with improved affinity for tumor cells. Many clinical applications in dermatology, ophthalmology, urology, gastroenterology, gynecology, neurosurgery and pneumology reported encouraging results in human tumor management. However, this interesting technique needs improvements that are currently investigated in the field of PS excitation by the design of new PS intended for two-photon excitation or for X-ray excitation. The former excitation technique is allowing better light penetration and preservation of healthy tissues while the latter is combining PDT and radiotherapy so that external light sources are no longer needed to generate the photodynamic effect. Nanotechnology can also improve the PS to reach the tumor cells by grafting addressing molecule and by increasing its aqueous solubility and consequently its bioavailability by encapsulation in synthetic or biogenic nanovector systems, ensuring good drug protection and targeting. Co-internalization of PS with magnetic nanoparticles in multifunctional vectors or stealth nanoplatforms allows a theranostic anticancer approach. Finally, a new category of inorganic PS will be presented with promising results on cancer cell destruction.
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Cao D, He H, Li W, Yan J, Wu J, Yin M, Zhou Y, Zhou Z, Yin L. A near-infrared light-controlled, oxygen-independent radical generating nano-system toward cancer therapy. Biomater Sci 2021; 9:4054-4065. [PMID: 33908463 DOI: 10.1039/d1bm00084e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Anti-tumor treatment based on free radicals is often inefficient in hypoxic tumors, mainly because of the oxygen-dependent generation mechanism of reactive oxygen species (ROS). Herein, we report an NIR laser-controlled nano-system that is capable of generating alkyl radicals in situ in an oxygen-independent approach. Hollow mesoporous Prussian blue nanoparticles (HPB NPs) were developed to co-encapsulate the azo initiator (AIBI) and 1-tetradecanol as the phase change material (PCM, melting point of ∼39 °C), obtaining the AP@HPB NPs. At normal body temperature, the PCM remained in the solid state to prevent the pre-leakage of AIBI. Upon NIR laser irradiation (808 nm) at the tumor site, AP@HPB NPs generated heat upon photothermal conversion, which melted the PCM to release AIBI and decomposed AIBI to produce toxicity free alkyl radicals under both normoxic and hypoxic conditions. The alkyl free radicals efficiently killed tumor cells by causing oxidative stress and damaging DNA. Meanwhile, NIR light-induced hyperthermia cooperated with free radicals to efficiently eradicate tumors. This study therefore provides a promising strategy toward oxygen-independent free radical therapy, especially for the treatment of hypoxic tumors.
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Affiliation(s)
- Desheng Cao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China.
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Joshi A, Gupta R, Sharma D, Singh M. A Mo(VI) based coordination polymer as an antiproliferative agent against cancer cells. Dalton Trans 2021; 50:1253-1260. [PMID: 33410831 DOI: 10.1039/d0dt03865b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal ions being an important part of biological systems are of great interest in the designing of new drugs. Molybdenum is an essential trace element for humans, animals, and plants and naturally present in many enzymes hence its complexes can be expected to serve as potential candidates for biomedical applications. A novel molybdenum-based coordination polymer, [Mo2(μ2-O)O4(2-pyc)2(H2O)], is synthesized by a hydrothermal route and structurally characterized by using single crystal X-Ray diffraction. The structure consists of molybdenum octahedra connected by a bridging oxo ligand and 2-pyc forming a one-dimensional coordination polymer. This Mo coordination polymer was found to show a considerable inhibitory effect with IC50 values of 22.63 μmol L-1, 28.19 μmol L-1, and 20.97 μmol L-1, against HepG2 (human liver cancer), A549 (human lung cancer), and MCF-7 (human breast cancer) cell lines respectively. This is the first attempt at exploring the molybdenum-based coordination polymer for antitumor applications. The cell cytotoxicity analysis revealed that the anti-tumor potential of the compound is governed by arresting of the A549, HepG2, and MCF-7 cancer cells in the S phase of the cell cycle. UV-Visible absorption spectroscopy further revealed the binding interaction between the Mo coordination polymer and ctDNA and the binding constant was found to be 5.9 × 103 L mol-1, which is in agreement with those of well-known groove binders. This binding interaction in turn induces apoptosis and necrosis pathways leading to the death of the cancer cells.
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Affiliation(s)
- Arti Joshi
- Institute of Nano Science and Technology, Sector-64, Phase-10, Mohali-160062, Punjab, India.
| | - Ruby Gupta
- Institute of Nano Science and Technology, Sector-64, Phase-10, Mohali-160062, Punjab, India.
| | - Deepika Sharma
- Institute of Nano Science and Technology, Sector-64, Phase-10, Mohali-160062, Punjab, India.
| | - Monika Singh
- Institute of Nano Science and Technology, Sector-64, Phase-10, Mohali-160062, Punjab, India.
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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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Novikova ED, Vorotnikov YA, Nikolaev NA, Tsygankova AR, Shestopalov MA, Efremova OA. The role of gold nanoparticles' aspect ratio in plasmon-enhanced luminescence and the singlet oxygen generation rate of Mo 6 clusters. Chem Commun (Camb) 2021; 57:7770-7773. [PMID: 34263276 DOI: 10.1039/d1cc03347f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Here we present a study on the effect of the aspect ratio (AR) of gold nanoparticles on the emission intensity and singlet oxygen production rate of hexamolybdenum cluster-doped silica particles. It was shown that these parameters can be enhanced gradually up to 6.7- and 13-fold with the AR.
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Affiliation(s)
- Evgeniya D Novikova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev ave., Novosibirsk 630090, Russian Federation.
| | - Yuri A Vorotnikov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev ave., Novosibirsk 630090, Russian Federation.
| | - Nazar A Nikolaev
- Institute of Automation and Electrometry SB RAS, 1, Acad. Koptyuga ave., Novosibirsk 630090, Russian Federation
| | - Alphiya R Tsygankova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev ave., Novosibirsk 630090, Russian Federation.
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Acad. Lavrentiev ave., Novosibirsk 630090, Russian Federation.
| | - Olga A Efremova
- Scientific Institute of Clinical and Experimental Lymphology-branch of ICG SB RAS, 2 Timakova str., Novosibirsk 630060, Russian Federation.
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Kirakci K, Nguyen TKN, Grasset F, Uchikoshi T, Zelenka J, Kubát P, Ruml T, Lang K. Electrophoretically Deposited Layers of Octahedral Molybdenum Cluster Complexes: A Promising Coating for Mitigation of Pathogenic Bacterial Biofilms under Blue Light. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52492-52499. [PMID: 33185107 DOI: 10.1021/acsami.0c19036] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The fight against infective microorganisms is becoming a worldwide priority due to serious concerns about the rising numbers of drug-resistant pathogenic bacteria. In this context, the inactivation of pathogens by singlet oxygen, O2(1Δg), produced by photosensitizers upon light irradiation has become an attractive strategy to combat drug-resistant microbes. To achieve this goal, we electrophoretically deposited O2(1Δg)-photosensitizing octahedral molybdenum cluster complexes on indium-tin oxide-coated glass plates. This procedure led to the first example of molecular photosensitizer layers able to photoinactivate bacterial biofilms. We delineated the morphology, composition, luminescence, and singlet oxygen formation of these layers and correlated these features with their antibacterial activity. Clearly, continuous 460 nm light irradiation imparted the layers with strong antibacterial properties, and the activity of these layers inhibited the biofilm formation and eradicated mature biofilms of Gram-positive Staphylococcus aureus and Enterococcus faecalis, as well as, Gram-negative Pseudomonas aeruginosa and Escherichia coli bacterial strains. Overall, the microstructure-related oxygen diffusivity of the layers and the water stability of the complexes were the most critical parameters for the efficient and durable use. These photoactive layers are attractive for the design of antibacterial surfaces activated by visible light and include additional functionalities such as the conversion of harmful UV/blue light to red light or oxygen sensing.
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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
| | - Thi Kim Ngan Nguyen
- CNRS - Saint-Gobain - NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, 305-0044 Tsukuba, Japan
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Fabien Grasset
- CNRS - Saint-Gobain - NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, 305-0044 Tsukuba, Japan
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Tetsuo Uchikoshi
- CNRS - Saint-Gobain - NIMS, UMI 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science, 1-1 Namiki, 305-0044 Tsukuba, Japan
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
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López-López N, Muñoz Resta I, de Llanos R, Miravet JF, Mikhaylov M, Sokolov MN, Ballesta S, García-Luque I, Galindo F. Photodynamic Inactivation of Staphylococcus aureus Biofilms Using a Hexanuclear Molybdenum Complex Embedded in Transparent polyHEMA Hydrogels. ACS Biomater Sci Eng 2020; 6:6995-7003. [DOI: 10.1021/acsbiomaterials.0c00992] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Noelia López-López
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
| | - Ignacio Muñoz Resta
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
| | - Rosa de Llanos
- Unidad Predepartamental de Medicina, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
| | - Juan F. Miravet
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
| | - Maxim Mikhaylov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Prosp., 630090 Novosibirsk, Russia
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Prosp., 630090 Novosibirsk, Russia
| | - Sofía Ballesta
- Departamento de Microbiología, Facultad de Medicina, Universidad de Sevilla, Av. De Sanchéz Pizjuán s/n, 41009 Sevilla, Spain
- Red Española de Investigación en Patología Infecciosa (REIPI RD16/0016/0001), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Isabel García-Luque
- Departamento de Microbiología, Facultad de Medicina, Universidad de Sevilla, Av. De Sanchéz Pizjuán s/n, 41009 Sevilla, Spain
- Red Española de Investigación en Patología Infecciosa (REIPI RD16/0016/0001), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Francisco Galindo
- Departamento de Química Inórganica y Orgánica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castellón, Spain
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35
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Mitocans Revisited: Mitochondrial Targeting as Efficient Anti-Cancer Therapy. Int J Mol Sci 2020; 21:ijms21217941. [PMID: 33114695 PMCID: PMC7663685 DOI: 10.3390/ijms21217941] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/19/2020] [Accepted: 10/24/2020] [Indexed: 12/14/2022] Open
Abstract
Mitochondria are essential cellular organelles, controlling multiple signalling pathways critical for cell survival and cell death. Increasing evidence suggests that mitochondrial metabolism and functions are indispensable in tumorigenesis and cancer progression, rendering mitochondria and mitochondrial functions as plausible targets for anti-cancer therapeutics. In this review, we summarised the major strategies of selective targeting of mitochondria and their functions to combat cancer, including targeting mitochondrial metabolism, the electron transport chain and tricarboxylic acid cycle, mitochondrial redox signalling pathways, and ROS homeostasis. We highlight that delivering anti-cancer drugs into mitochondria exhibits enormous potential for future cancer therapeutic strategies, with a great advantage of potentially overcoming drug resistance. Mitocans, exemplified by mitochondrially targeted vitamin E succinate and tamoxifen (MitoTam), selectively target cancer cell mitochondria and efficiently kill multiple types of cancer cells by disrupting mitochondrial function, with MitoTam currently undergoing a clinical trial.
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36
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Fuhrmann A, Pachel F, Ströbele M, Enseling D, Jüstel T, Meyer H. Synthesis, Crystal Structure, and Luminescence of Metal Iodide Cluster Compounds (
n
Bu
4
N)
2
[
M
6
I
8
(NCO)
6
] with
M
= Mo, W. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Arin‐Daniel Fuhrmann
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry University of Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Florian Pachel
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry University of Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Markus Ströbele
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry University of Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - David Enseling
- Department of Chemical Engineering Münster University of Applied Sciences Stegerwaldstraße 39 48565 Steinfurt Germany
| | - Thomas Jüstel
- Department of Chemical Engineering Münster University of Applied Sciences Stegerwaldstraße 39 48565 Steinfurt Germany
| | - Hans‐Jürgen Meyer
- Section for Solid State and Theoretical Inorganic Chemistry Institute of Inorganic Chemistry University of Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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37
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Wu MY, Liu L, Zou Q, Leung JK, Wang JL, Chou TY, Feng S. Simple synthesis of multifunctional photosensitizers for mitochondrial and bacterial imaging and photodynamic anticancer and antibacterial therapy. J Mater Chem B 2020; 8:9035-9042. [PMID: 32959039 DOI: 10.1039/d0tb01669a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Photosensitizers (PSs), a critical drug administered for successful photodynamic therapy (PDT), have been well researched regarding their anticancer or bactericidal capability with high precision and low invasiveness. Although traditional PSs have been explored either in photodynamic anticancer or in antibiosis, they usually require synthesis with multiple steps, harsh synthetic conditions, and a complicated purification process for a single targeted product. Therefore, developing new multifunctional PSs with a simple synthesis and reactant flexibility which combine mitochondrial and bacterial imaging, efficient photodynamic anticancer and antibacterial effects is of the utmost urgency and of great importance for clinical applications. Herein, a large structural investigation of isoquinolinium-based PSs synthesized by a simple Rh-catalysed annulation reaction with high yields is presented. These lipophilic cationic PSs have a tunable photophysical property. LIQ-6 was found to perform not only as an ideal mitochondria targeting probe but also an effective cancer cell killing PS, and moreover, a tracker for bacterial imaging and ablation. LIQ-6 can be used to image a wide range of cancer cells and to monitor the photo-induced cell apoptosis, and simultaneously, it can also image and be a photodynamic germicide for both Gram-positive and Gram-negative bacteria. Furthermore, LIQ-6 shows great effectiveness in the wound healing process, showing its ability to be an ideal PS in vivo as well. This contribution is believed to offer a new platform for the construction of a theragnostic system for future practical applications in biology and biomedicine.
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Affiliation(s)
- Ming-Yu Wu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Li Liu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Qian Zou
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jong-Kai Leung
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China
| | - Jia-Li Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Tsu Yu Chou
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China
| | - Shun Feng
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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38
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Hummel T, Leis W, Eckhardt A, Ströbele M, Enseling D, Jüstel T, Meyer HJ. Energy transfer in supramolecular [Crypt-RE]-[W 6I 14] solids. Dalton Trans 2020; 49:9795-9803. [PMID: 32627778 DOI: 10.1039/d0dt01705a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Photophysical properties of tungsten iodides with the [W6I14]2- cluster core have been described with respect to phosphorescence and phosphorescence quenching by molecular oxygen. This process involves energy transfer from excited triplet states of the cluster onto molecular oxygen. In the present study we investigate deactivation channels of exited triplet states of the [W6I14]2- cluster towards rare earth ions. For this purpose, we synthesized several supramolecular assemblies made of [W6I14]2- clusters and metal cryptates and investigated their crystal structures and photophysical properties. UV/Vis photoexcitation of solid [Crypt-A]-[W6I14] (A = alkaline metal) and [Crypt-RE]-[W6I14] revealed phosphorescence of the cluster, respectively of the photophysically active rare earth metal (RE) center. A cluster to cryptate energy transfer is proven with a photophysically active rare earth ion by the emission of Yb3+ at 977 nm (2F5/2-2F7/2) and Nd3+ 1072 nm (4F3/2-4I11/2). These results show that an effective excitation of near-infrared-emitting rare earth ions is possible under excitation up to 550 nm with [Crypt-RE]-[W6I14] assemblies.
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Affiliation(s)
- Thorsten Hummel
- Section for Solid State and Theoretical Inorganic Chemistry, Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany.
| | - Wolfgang Leis
- Section for Translational Chemistry, Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Aaron Eckhardt
- Section for Solid State and Theoretical Inorganic Chemistry, Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany.
| | - Markus Ströbele
- Section for Solid State and Theoretical Inorganic Chemistry, Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany.
| | - David Enseling
- Department of Chemical Engineering, Münster University of Applied Sciences, Stegerwaldstraße 39, 48565 Steinfurt, Germany
| | - Thomas Jüstel
- Department of Chemical Engineering, Münster University of Applied Sciences, Stegerwaldstraße 39, 48565 Steinfurt, Germany
| | - Hans-Jürgen Meyer
- Section for Solid State and Theoretical Inorganic Chemistry, Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany.
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39
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Enhanced Photocatalytic Activity and Stability in Hydrogen Evolution of Mo 6 Iodide Clusters Supported on Graphene Oxide. NANOMATERIALS 2020; 10:nano10071259. [PMID: 32605229 PMCID: PMC7407389 DOI: 10.3390/nano10071259] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/22/2020] [Accepted: 06/25/2020] [Indexed: 02/06/2023]
Abstract
Catalytic properties of the cluster compound (TBA)2[Mo6Ii8(O2CCH3)a6] (TBA = tetrabutylammonium) and a new hybrid material (TBA)2Mo6Ii8@GO (GO = graphene oxide) in water photoreduction into molecular hydrogen were investigated. New hybrid material (TBA)2Mo6Ii8@GO was prepared by coordinative immobilization of the (TBA)2[Mo6Ii8(O2CCH3)a6] onto GO sheets and characterized by spectroscopic, analytical, and morphological techniques. Liquid and, for the first time, gas phase conditions were chosen for catalytic experiments under UV–Vis irradiation. In liquid water, optimal H2 production yields were obtained after using (TBA)2[Mo6Ii8(O2CCH3)a6] and (TBA)2Mo6Ii8@GO) catalysts after 5 h of irradiation of liquid water. Despite these remarkable catalytic performances, “liquid-phase” catalytic systems have serious drawbacks: the cluster anion evolves to less active cluster species with partial hydrolytic decomposition, and the nanocomposite completely decays in the process. Vapor water photoreduction showed lower catalytic performance but offers more advantages in terms of cluster stability, even after longer radiation exposure times and recyclability of both catalysts. The turnover frequency (TOF) of (TBA)2Mo6Ii8@GO is three times higher than that of the microcrystalline (TBA)2[Mo6Ii8(O2CCH3)a6], in agreement with the better accessibility of catalytic cluster sites for water molecules in the gas phase. This bodes well for the possibility of creating {Mo6I8}4+-based materials as catalysts in hydrogen production technology from water vapor.
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40
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Kirakci K, Zelenka J, Křížová I, Ruml T, Lang K. Octahedral Molybdenum Cluster Complexes with Optimized Properties for Photodynamic Applications. Inorg Chem 2020; 59:9287-9293. [PMID: 32516524 DOI: 10.1021/acs.inorgchem.0c01173] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Two new octahedral molybdenum cluster complexes act as an efficient singlet oxygen supplier in the context of the photodynamic therapy of cancer cells under blue-light irradiation. These complexes integrate the {Mo6I8}4+ core with 4'-carboxybenzo-15-crown-5 or cholate apical ligands and were characterized by 1H NMR, HR ESI-MS, and CHN elemental analysis. Both complexes display high quantum yields of luminescence and singlet oxygen formation in aqueous media associated with a suitable stability against hydrolysis. They are internalized into lysosomes of HeLa cells with no dark toxicity at pharmacologically relevant concentrations and have a strong phototoxic effect under blue-light irradiation, even in the presence of fetal bovine serum. The last feature is essential for further translation to in vivo experiments. Overall, these complexes are attractive molecular photosensitizers toward photodynamic applications.
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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
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Ivana Křížová
- Department of Biotechnology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Řež 1001, 250 68 Husinec-Řež, Czech Republic
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41
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Recent Studies on the Antimicrobial Activity of Transition Metal Complexes of Groups 6–12. CHEMISTRY-SWITZERLAND 2020. [DOI: 10.3390/chemistry2020026] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Antimicrobial resistance is an increasingly serious threat to global public health that requires innovative solutions to counteract new resistance mechanisms emerging and spreading globally in infectious pathogens. Classic organic antibiotics are rapidly exhausting the structural variations available for an effective antimicrobial drug and new compounds emerging from the industrial pharmaceutical pipeline will likely have a short-term and limited impact before the pathogens can adapt. Inorganic and organometallic complexes offer the opportunity to discover and develop new active antimicrobial agents by exploiting their wide range of three-dimensional geometries and virtually infinite design possibilities that can affect their substitution kinetics, charge, lipophilicity, biological targets and modes of action. This review describes recent studies on the antimicrobial activity of transition metal complexes of groups 6–12. It focuses on the effectiveness of the metal complexes in relation to the rich structural chemical variations of the same. The aim is to provide a short vade mecum for the readers interested in the subject that can complement other reviews.
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42
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Sharma B, Kaur G, Chaudhary GR, Gawali SL, Hassan PA. High antimicrobial photodynamic activity of photosensitizer encapsulated dual-functional metallocatanionic vesicles against drug-resistant bacteria S. aureus. Biomater Sci 2020; 8:2905-2920. [PMID: 32307486 DOI: 10.1039/d0bm00323a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Developments in the field of photodynamic therapy (PDT) are being made by investigating appropriate photosensitizers (PSs) and enhancing the penetration effect of light by developing new nano-carriers. So, to boost the PDT effect, in the present work, new metallocatanionic vesicles were fabricated by a convenient, efficient, green and inexpensive method to encapsulate PSs and evaluate their antimicrobial PDT against the drug-resistant bacterium Staphylococcus aureus. They were prepared from a combination of a double-chained copper-based cationic metallosurfactant (CuCPCII) and an anionic surfactant sodium bis(2-ethylhexyl)sulfosuccinate (Aerosol OT or AOT). The surface charge, structure and ability to encapsulate oppositely charged photosensitizers are some crucial factors that need to be controlled for their effective utilization in PDT. In this approach, two of the fractions, one each from a cationic rich and anionic rich side, were selected to encapsulate cationic (methylene blue; MB) and anionic (rose bengal (RB)) PSs after characterization by SAXS, AFM, FESEM, DLS, and zeta-potential, and conductivity measurements. Afterwards, PDT was performed on S. aureus (a multidrug-resistant bacterium) by the colony forming unit (CFU) method using PS encapsulated metallocatanionic vesicles that demonstrated high bactericidal activity by using visible light (532 nm) and facilitated the generation of singlet oxygen. The singlet oxygen generation capability of both the PSs was enhanced under irradiation when encapsulated in metallocatanionic vesicles because the presence of metal accelerated the intersystem crossing of triplet oxygen to singlet oxygen. Furthermore, these studies reveal that the metallocatanionic vesicles have dual functionality i.e. encapsulate PSs and even show dark toxicity against S. aureus. To study the killing of S. aureus, bacterial DNA was extracted and its interactions and conformational changes in the presence of metallocatanionic vesicles were analyzed via., UV-Visible, and circular dichroism (CD) spectroscopy. Comet assay (single-cell gel-electrophoresis) demonstrated the DNA damage after PDT treatment in an individual cell. The bacterial DNA damage was more with the metallosurfactant rich 70 : 30 fraction than with the 30 : 70 fraction, in combination with RB under irradiation. This work provides a new metal hybrid smart material that possesses dual functionality and is prepared by an easy, economical and feasible procedure which resulted in enhanced PDT against a drug-resistant bacterium, thus, providing an alternative for antibacterial therapy.
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Affiliation(s)
- Bunty Sharma
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh, India.
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43
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PF74 and Its Novel Derivatives Stabilize Hexameric Lattice of HIV-1 Mature-Like Particles. Molecules 2020; 25:molecules25081895. [PMID: 32325987 PMCID: PMC7221806 DOI: 10.3390/molecules25081895] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/09/2020] [Accepted: 04/15/2020] [Indexed: 01/23/2023] Open
Abstract
A major structural retroviral protein, capsid protein (CA), is able to oligomerize into two different hexameric lattices, which makes this protein a key component for both the early and late stages of HIV-1 replication. During the late stage, the CA protein, as part of the Gag polyprotein precursor, facilitates protein–protein interactions that lead to the assembly of immature particles. Following protease activation and Gag polyprotein processing, CA also drives the assembly of the mature viral core. In the early stage of infection, the role of the CA protein is distinct. It controls the disassembly of the mature CA hexameric lattice i.e., uncoating, which is critical for the reverse transcription of the single-stranded RNA genome into double stranded DNA. These properties make CA a very attractive target for small molecule functioning as inhibitors of HIV-1 particle assembly and/or disassembly. Of these, inhibitors containing the PF74 scaffold have been extensively studied. In this study, we reported a series of modifications of the PF74 molecule and its characterization through a combination of biochemical and structural approaches. Our data supported the hypothesis that PF74 stabilizes the mature HIV-1 CA hexameric lattice. We identified derivatives with a higher in vitro stabilization activity in comparison to the original PF74 molecule.
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Dollo G, Boucaud Y, Amela-Cortes M, Molard Y, Cordier S, Brandhonneur N. PLGA nanoparticles embedding molybdenum cluster salts: Influence of chemical composition on physico-chemical properties, encapsulation efficiencies, colloidal stabilities and in vitro release. Int J Pharm 2020; 576:119025. [DOI: 10.1016/j.ijpharm.2020.119025] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/18/2022]
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45
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Therapeutic Strategies for Regulating Mitochondrial Oxidative Stress. Biomolecules 2020; 10:biom10010083. [PMID: 31948035 PMCID: PMC7023101 DOI: 10.3390/biom10010083] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/24/2019] [Accepted: 01/01/2020] [Indexed: 02/07/2023] Open
Abstract
There have been many reports on the relationship between mitochondrial oxidative stress and various types of diseases. This review covers mitochondrial targeting photodynamic therapy and photothermal therapy as a therapeutic strategy for inducing mitochondrial oxidative stress. We also discuss other mitochondrial targeting phototherapeutic methods. In addition, we discuss anti-oxidant therapy by a mitochondrial drug delivery system (DDS) as a therapeutic strategy for suppressing oxidative stress. We also describe cell therapy for reducing oxidative stress in mitochondria. Finally, we discuss the possibilities and problems associated with clinical applications of mitochondrial DDS to regulate mitochondrial oxidative stress.
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46
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Mironova AD, Mikhailov MA, Brylev KA, Gushchin AL, Sukhikh TS, Sokolov MN. Phosphorescent complexes of {Mo 6I 8} 4+ with triazolates: [2+3] cycloaddition of alkynes to [Mo 6I 8(N 3) 6] 2−. NEW J CHEM 2020. [DOI: 10.1039/d0nj04259e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
“Click” reaction of activated alkynes with [Mo6I8(N3)6]2− produces novel emissive triazolate complexes with the {Mo6I8}4+ cluster core.
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Affiliation(s)
- Alina D. Mironova
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 630090 Novosibirsk
- Russian Federation
| | - Maksim A. Mikhailov
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 630090 Novosibirsk
- Russian Federation
| | - Konstantin A. Brylev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
| | - Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
| | - Taisiya S. Sukhikh
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
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47
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Hummel T, Dutczak D, Alekseev AY, Adamenko LS, Shestopalov MA, Mironov YV, Enseling D, Jüstel T, Meyer HJ. Photodynamic properties of tungsten iodide clusters incorporated into silicone: A2[M6I8L6]@silicone. RSC Adv 2020; 10:22257-22263. [PMID: 35516606 PMCID: PMC9054561 DOI: 10.1039/d0ra04280c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/20/2020] [Indexed: 01/09/2023] Open
Abstract
The light-induced antibacterial and antifungal properties of A2[M6I8L6] with M = Mo and W, A = organic cation, L = ligand have been studied. The photoactive compounds (TBA)2[W6I8(C7H7SO3)6] and (TBA)2[W6I8(COOCF3)6] have been incorporated into a permeable silicone matrix and were measured for their application in the decomposition of multi-resistant bioactive species (hospital germs) such as S. aureus and P. aeruginosa as well as fungi. In addition, we present a new high volume synthesis route for these types of cluster compounds departing from the soluble compound W6I22. The light-induced antibacterial and antifungal properties of A2[M6I8L6] with M = Mo and W, A = organic cation, L = ligand have been studied.![]()
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Affiliation(s)
- Thorsten Hummel
- Section for Solid State and Theoretical Inorganic Chemistry
- Institute of Inorganic Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
| | - Danuta Dutczak
- Section for Solid State and Theoretical Inorganic Chemistry
- Institute of Inorganic Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
| | - Alexander Y. Alekseev
- Federal Research Centre for Basic and Translational Medicine
- 630090 Novosibirsk
- Russia
- Dagestan State University
- Makhachkala
| | - Lyubov S. Adamenko
- Federal Research Centre for Basic and Translational Medicine
- 630090 Novosibirsk
- Russia
| | | | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | - David Enseling
- Department of Chemical Engineering
- Münster University of Applied Science
- 48565 Steinfurt
- Germany
| | - Thomas Jüstel
- Department of Chemical Engineering
- Münster University of Applied Science
- 48565 Steinfurt
- Germany
| | - Hans-Jürgen Meyer
- Section for Solid State and Theoretical Inorganic Chemistry
- Institute of Inorganic Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
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Kirakci K, Demel J, Hynek J, Zelenka J, Rumlová M, Ruml T, Lang K. Phosphinate Apical Ligands: A Route to a Water-Stable Octahedral Molybdenum Cluster Complex. Inorg Chem 2019; 58:16546-16552. [PMID: 31794199 DOI: 10.1021/acs.inorgchem.9b02569] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Recent studies have unraveled the potential of octahedral molybdenum cluster complexes (Mo6) as relevant red phosphors and photosensitizers of singlet oxygen, O2(1Δg), for photobiological applications. However, these complexes tend to hydrolyze in an aqueous environment, which deteriorates their properties and limits their applications. To address this issue, we show that phenylphosphinates are extraordinary apical ligands for the construction of Mo6 complexes. These new complexes display unmatched luminescence quantum yields and singlet oxygen production in aqueous solutions. More importantly, the complex with diphenylphosphinate ligands is the only stable complex of these types in aqueous media. These complexes internalize in lysosomes of HeLa cells, have no dark toxicity, and yet are phototoxic in the submicromolar concentration range. The superior hydrolytic stability of the diphenylphosphinate complex allows for conservation of its photophysical properties and biological activity over a long period, making it a promising compound for photobiological applications.
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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
| | - Jan Demel
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , Řež 1001 , 250 68 Husinec-Řež , Czech Republic
| | - Jan Hynek
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , Řež 1001 , 250 68 Husinec-Řež , Czech Republic
| | | | | | | | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , Řež 1001 , 250 68 Husinec-Řež , Czech Republic
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Octahedral molybdenum cluster as a photoactive antimicrobial additive to a fluoroplastic. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110150. [DOI: 10.1016/j.msec.2019.110150] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 11/22/2022]
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Li RZ, Yuan Q, Yang Z, Aprà E, Li Z, Azov VA, Kirakci K, Warneke J, Wang XB. Photoelectron spectroscopy of [Mo6X14]2− dianions (X = Cl–I). J Chem Phys 2019; 151:194310. [DOI: 10.1063/1.5130185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ren-Zhong Li
- College of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, USA
| | - Qinqin Yuan
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, USA
| | - Zheng Yang
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, USA
| | - Edoardo Aprà
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, Washington 99352, USA
| | - Zhipeng Li
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, USA
| | - Vladimir A. Azov
- Department of Chemistry, University of the Free State, 9300 Bloemfontein, South Africa
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež1001, 250 68 Řež, Czech Republic
| | - Jonas Warneke
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, 04103 Leipzig, Germany
| | - Xue-Bin Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K8-88, Richland, Washington 99352, USA
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