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Dridi R, Abdelkafi-Koubaa Z, Srairi-Abid N, Socha B, Zid MF. One-pot synthesis, structural investigation, antitumor activity and molecular docking approach of two decavanadate compounds. J Inorg Biochem 2024; 255:112533. [PMID: 38547784 DOI: 10.1016/j.jinorgbio.2024.112533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/05/2024] [Accepted: 03/18/2024] [Indexed: 04/16/2024]
Abstract
Two bases-decavanadates coordination compounds [(C6H13N4)2][Mg(H2O)6]2[O28V10].6H2O (1) and [(C7H11N2)4][Mg(H2O)6][O28V10].4H2O (2) have been synthesized and well characterized using vibrational spectroscopy (infrared), UV-Visible analysis and single crystal X-ray diffraction technique. The formula unit, for both compounds, is composed by the decavanadate [V10O28]6-, hydrated magnesium ion, a counter anion and free water molecules. The transition metal adopts octahedral geometries in both compound (1) and (2). The existence of a multitude of hydrogen bonding interactions for both compounds provides a stable three-dimensional supramolecular structure. Optical absorption reveals a band gap energy indicating the semi-conductive nature of the compound. In this study, the cytotoxic and the anti-proliferative activities of compounds (1) and (2) on human cancer cells (U87 and MDA-MB-231) were investigated. Both compounds demonstrated dose-dependent anti-proliferative activity on U87 and MDA-MB-231 with respective IC50 values of 0.82 and 0.31 μM and 1.4 and 1.75 μM. These data provide evidence on the potential anticancer activity of [(C6H13N4)2][Mg(H2O)6]2[O28V10].6H2O and [(C7H11N2)4][Mg(H2O)2][O28V10].4H2O. Molecular docking of the compounds was also examined. Molecular docking studies were performed for both compounds against four target receptors and revealed better binding affinity with these targets in comparison to Cisplatin. Moreover, molecular docking investigations suggest that these compounds may function as potential inhibitors of proteins in brain and breast cells, exhibiting greater efficiency compared to Cisplatin.
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Affiliation(s)
- Rihab Dridi
- University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, 2092 El Manar II, Tunis, Tunisia.
| | - Zaineb Abdelkafi-Koubaa
- University of Tunis El Manar, Salah Azaiz Institute, LR21SP01, Laboratory of Personalized Medicine, Precision Medicine and Investigation in Oncology, Tunis 1006, Tunisia.; University of Tunis El Manar, Pasteur Institute of Tunis, LR20IPT01, Laboratory of Biomolecules, Venoms and Theranostic Applications, Tunis 1002, Tunisia
| | - Najet Srairi-Abid
- University of Tunis El Manar, Pasteur Institute of Tunis, LR20IPT01, Laboratory of Biomolecules, Venoms and Theranostic Applications, Tunis 1002, Tunisia
| | - Bhavesh Socha
- Department of Physics, Sardar Patel University, Gujarat, India
| | - Mohamed Faouzi Zid
- University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, 2092 El Manar II, Tunis, Tunisia
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2
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Du B, Ru J, Zhan Z, Lin C, Liu Y, Mao W, Zhang J. Insight into small-molecule inhibitors targeting extracellular nucleotide pyrophosphatase/phosphodiesterase1 for potential multiple human diseases. Eur J Med Chem 2024; 268:116286. [PMID: 38432057 DOI: 10.1016/j.ejmech.2024.116286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/06/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
Extracellular nucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) has been identified as a type II transmembrane glycoprotein. It plays a crucial role in various biological processes, such as bone mineralization, cancer cell proliferation, and immune regulation. Consequently, ENPP1 has garnered attention as a promising target for pharmacological interventions. Despite its potential, the development of clinical-stage ENPP1 inhibitors for solid tumors, diabetes, and silent rickets remains limited. However, there are encouraging findings from preclinical trials involving small molecules exhibiting favorable therapeutic effects and safety profiles. This perspective aims to shed light on the structural properties, biological functions and the relationship between ENPP1 and diseases. Additionally, it focuses on the structure-activity relationship of ENPP1 inhibitors, with the intention of guiding the future development of new and effective ENPP1 inhibitors.
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Affiliation(s)
- Baochan Du
- Department of Neurology, Neuro-system and Multimorbidity Laboratory and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jinxiao Ru
- Department of Neurology, Neuro-system and Multimorbidity Laboratory and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zixuan Zhan
- Department of Neurology, Neuro-system and Multimorbidity Laboratory and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Congcong Lin
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Yang Liu
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, China
| | - Wuyu Mao
- Department of Neurology, Neuro-system and Multimorbidity Laboratory and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Jifa Zhang
- Department of Neurology, Neuro-system and Multimorbidity Laboratory and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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3
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Song N, Lu M, Liu J, Lin M, Shangguan P, Wang J, Shi B, Zhao J. A Giant Heterometallic Polyoxometalate Nanocluster for Enhanced Brain-Targeted Glioma Therapy. Angew Chem Int Ed Engl 2024; 63:e202319700. [PMID: 38197646 DOI: 10.1002/anie.202319700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/06/2024] [Accepted: 01/09/2024] [Indexed: 01/11/2024]
Abstract
Giant heterometallic polyoxometalate (POM) clusters with precise atom structures, flexibly adjustable and abundant active sites are promising for constructing functional nanodrugs. However, current POM drugs are almost vacant in orthotopic brain tumor therapy due to the inability to effectively penetrate the blood-brain barrier (BBB) and low drug activity. Here, we designed the largest (3.0 nm × 6.0 nm) transition-metal-lanthanide co-encapsulated POM cluster {[Ce10 Ag6 (DMEA)(H2 O)27 W22 O70 ][B-α-TeW9 O33 ]9 }2 88- featuring 238 metal centers via synergistic coordination between two geometry-unrestricted Ce3+ and Ag+ linkers with tungsten-oxo cluster fragments. This POM was combined with brain-targeted peptide to prepare a brain-targeted nanodrug that could efficiently traverse BBB and target glioma cells. The Ag+ active centers in the nanodrug specifically activate reactive oxygen species to regulate the apoptosis pathway of glioma cells with a low half-maximal inhibitory concentration (5.66 μM). As the first brain-targeted POM drug, it efficiently prolongs the survival of orthotopic glioma-bearing mice.
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Affiliation(s)
- Nizi Song
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Mengya Lu
- Academy for Advanced Interdisciplinary Studies, Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Jiancai Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Ming Lin
- Academy for Advanced Interdisciplinary Studies, Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Ping Shangguan
- Academy for Advanced Interdisciplinary Studies, Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Jiefei Wang
- Academy for Advanced Interdisciplinary Studies, Henan Key Laboratory of Brain Targeted Bio-nanomedicine, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Bingyang Shi
- State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, China
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Monakhov KY. Oxovanadium electronics for in-memory, neuromorphic, and quantum computing applications. Mater Horiz 2024. [PMID: 38334459 DOI: 10.1039/d3mh01926h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Vanadium is a critical raw material. In the nearby future, it may, however, become one of the key elements of computer devices based on two-dimensional arrays of spin qubits for quantum information processing or charge- and resistance-based data memory cells for non-volatile in-memory and neuromorphic computing. The research and development (R&D) of vanadium-containing electronic materials and methods for their responsible fabrication underpins the transition to innovative hybrid semiconductors for energy- and resource-efficient memory and information processing technologies. The combination of standard and emerging solid-state semiconductors with stimuli-responsive oxo complexes of vanadium(IV,V) is envisioned to result in electronics with a new room-temperature device nanophysics, and the ability to modulate and control it at the sub-nanometer level. The development of exponential (Boolean) logics based on the oxovanadium-comprising circuitry and crossbar arrays of individual memristive cells for in-memory computing, the implementation of basic synaptic functions via dynamic electrical pulses for neuromorphic computing, and the readout and control of spin networks and interfaces for quantum computing are strategically important future areas of molecular chemistry and applied physics of vanadium.
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Affiliation(s)
- Kirill Yu Monakhov
- Leibniz Institute of Surface Engineering (IOM), Permoserstr. 15, Leipzig 04318, Germany.
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5
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Sánchez-Lara E, Favela R, Tzian K, Monroy-Torres B, Romo-Pérez A, Ramírez-Apan MT, Flores-Alamo M, Rodríguez-Diéguez A, Cepeda J, Castillo I. Effects of the tetravanadate [V 4O 12] 4- anion on the structural, magnetic, and biological properties of copper/phenanthroline complexes. J Biol Inorg Chem 2024; 29:139-158. [PMID: 38175299 PMCID: PMC11001746 DOI: 10.1007/s00775-023-02035-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/30/2023] [Indexed: 01/05/2024]
Abstract
The aim to access linked tetravanadate [V4O12]4- anion with mixed copper(II) complexes, using α-amino acids and phenanthroline-derived ligands, resulted in the formation of four copper(II) complexes [Cu(dmb)(Gly)(OH2)]2[Cu(dmb)(Gly)]2[V4O12]·9H2O (1) [Cu(dmb)(Lys)]2[V4O12]·8H2O (2), [Cu(dmp)2][V4O12]·C2H5OH·11H2O (3), and [Cu(dmp)(Gly)Cl]·2H2O (4), where dmb = 4,4'-dimethioxy-2,2'-bipyridine; Gly = glycine; Lys = lysine; and dmp = 2,9-dimethyl-1,10-phenanthroline. The [V4O12]4- anion is functionalized with mixed copper(II) units in 1 and 2; while in 3, it acts as a counterion of two [Cu(dmp)]2+ units. Compound 4 crystallized as a unit that did not incorporate the vanadium cluster. All compounds present magnetic couplings arising from Cu⋯O/Cu⋯Cu bridges. Stability studies of water-soluble 3 and 4 by UV-Vis spectroscopy in cell culture medium confirmed the robustness of 3, while 4 appears to undergo ligand scrambling over time, resulting partially in the stable species [Cu(dmp)2]+ that was also identified by electrospray ionization mass spectrometry at m/z = 479. The in vitro cytotoxicity activity of 3 and 4 was determined in six cancer cell lines; the healthy cell line COS-7 was also included for comparative purposes. MCF-7 cells were more sensitive to compound 3 with an IC50 value of 12 ± 1.2 nmol. The tested compounds did not show lipid peroxidation in the TBARS assay, ruling out a mechanism of action via reactive oxygen species formation. Both compounds inhibited cell migration at 5 µM in wound-healing assays using MCF-7, PC-3, and SKLU-1 cell lines, opening a new window to study the anti-metastatic effect of mixed vanadium-copper(II) systems.
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Affiliation(s)
- Eduardo Sánchez-Lara
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico.
| | - Roberto Favela
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico
| | - Kitze Tzian
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico
| | - Brian Monroy-Torres
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico
| | - Adriana Romo-Pérez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico
| | - María Teresa Ramírez-Apan
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico
| | - Marcos Flores-Alamo
- Facultad de Química, Universidad Nacional Autónoma de México, Circuito Exterior, CU, 04510, Ciudad de Mexico, Mexico
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva, 18071, Granada, Spain
| | - Javier Cepeda
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco UPV/EHU, 20018, Donostia-San Sebastian, Spain
| | - Ivan Castillo
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Interior, CU, 04510, Ciudad de Mexico, Mexico.
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Salazar Marcano DE, Savić ND, Declerck K, Abdelhameed SAM, Parac-Vogt TN. Reactivity of metal-oxo clusters towards biomolecules: from discrete polyoxometalates to metal-organic frameworks. Chem Soc Rev 2024; 53:84-136. [PMID: 38015569 DOI: 10.1039/d3cs00195d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Metal-oxo clusters hold great potential in several fields such as catalysis, materials science, energy storage, medicine, and biotechnology. These nanoclusters of transition metals with oxygen-based ligands have also shown promising reactivity towards several classes of biomolecules, including proteins, nucleic acids, nucleotides, sugars, and lipids. This reactivity can be leveraged to address some of the most pressing challenges we face today, from fighting various diseases, such as cancer and viral infections, to the development of sustainable and environmentally friendly energy sources. For instance, metal-oxo clusters and related materials have been shown to be effective catalysts for biomass conversion into renewable fuels and platform chemicals. Furthermore, their reactivity towards biomolecules has also attracted interest in the development of inorganic drugs and bioanalytical tools. Additionally, the structural versatility of metal-oxo clusters allows for the efficiency and selectivity of the biomolecular reactions they promote to be readily tuned, thereby providing a pathway towards reaction optimization. The properties of the catalyst can also be improved through incorporation into solid supports or by linking metal-oxo clusters together to form Metal-Organic Frameworks (MOFs), which have been demonstrated to be powerful heterogeneous catalysts. Therefore, this review aims to provide a comprehensive and critical analysis of the state of the art on biomolecular transformations promoted by metal-oxo clusters and their applications, with a particular focus on structure-activity relationships.
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Affiliation(s)
| | - Nada D Savić
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
| | - Kilian Declerck
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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Grabowska O, Zdrowowicz M, Milaș D, Żamojć K, Chmur K, Tesmar A, Kapica M, Chmurzyński L, Wyrzykowski D. Implications of albumin in cell culture media on the biological action of vanadates(V). Int J Biol Macromol 2023; 253:127875. [PMID: 37924912 DOI: 10.1016/j.ijbiomac.2023.127875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Abstract
In this article, the implications of binding competition of vanadates(V) with dodecyl sulfates for bovine serum albumin on cytotoxicity of vanadium(V) species against prostate cancer cells have been investigated. The pH- and SDS-dependent vanadate(V)-BSA interactions were observed. At pH 5, there is only one site capable of binding ten vanadates(V) ions (logK(ITC)1 = 4.96 ± 0.06; ΔH(ITC)1 = -1.04 ± 0.03 kcal mol-1), whereas at pH 7 two distinctive binding sites on protein were found, saturated with two and seven V(V) ions, respectively (logK(ITC)1 = 6.11 ± 0.06; ΔH(ITC)1 = 0.78 ± 0.12 kcal mol-1; logK(ITC)2 = 4.80 ± 0.02; ΔH(ITC)2 = - 4.95 ± 0.14 kcal mol-1). SDS influences the stoichiometry and the stability of the resulting V(V)-BSA complexes. Finally, the cytotoxicity of vanadates(V) against prostate cancer cells (PC3 line) was examined in the presence and absence of SDS in the culture medium. In the case of a 24-h incubation with 100 μM vanadate(V), a ca. 20 % reduction in viability of PC3 cells was observed in the presence of SDS. However, in other considered cases (various concentrations and time of incubation) SDS does not affect the dose-dependent action of vanadates(V) on the investigated prostate cancer cells.
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Affiliation(s)
- Ola Grabowska
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Magdalena Zdrowowicz
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Dan Milaș
- Faculty of Chemistry, Biology, Geography, West University Timișoara, Strada Johann Heinrich Pestalozzi 16, Timișoara, Romania
| | - Krzysztof Żamojć
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Katarzyna Chmur
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Aleksandra Tesmar
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Martyna Kapica
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Lech Chmurzyński
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Dariusz Wyrzykowski
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland.
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De Sousa-Coelho AL, Fraqueza G, Aureliano M. Repurposing Therapeutic Drugs Complexed to Vanadium in Cancer. Pharmaceuticals (Basel) 2023; 17:12. [PMID: 38275998 PMCID: PMC10819319 DOI: 10.3390/ph17010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Repurposing drugs by uncovering new indications for approved drugs accelerates the process of establishing new treatments and reduces the high costs of drug discovery and development. Metal complexes with clinically approved drugs allow further opportunities in cancer therapy-many vanadium compounds have previously shown antitumor effects, which makes vanadium a suitable metal to complex with therapeutic drugs, potentially improving their efficacy in cancer treatment. In this review, covering the last 25 years of research in the field, we identified non-oncology-approved drugs suitable as ligands to obtain different vanadium complexes. Metformin-decavanadate, vanadium-bisphosphonates, vanadyl(IV) complexes with non-steroidal anti-inflammatory drugs, and cetirizine and imidazole-based oxidovanadium(IV) complexes, each has a parent drug known to have different medicinal properties and therapeutic indications, and all showed potential as novel anticancer treatments. Nevertheless, the precise mechanisms of action for these vanadium compounds against cancer are still not fully understood.
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Affiliation(s)
- Ana Luísa De Sousa-Coelho
- Algarve Biomedical Center Research Institute (ABC-RI), Universidade do Algarve, 8005-139 Faro, Portugal
- Algarve Biomedical Center (ABC), Universidade do Algarve, 8005-139 Faro, Portugal
- Escola Superior de Saúde, Universidade do Algarve (ESSUAlg), 8005-139 Faro, Portugal
| | - Gil Fraqueza
- Instituto Superior de Engenharia (ISE), Universidade do Algarve, 8005-139 Faro, Portugal;
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, 8005-139 Faro, Portugal
| | - Manuel Aureliano
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, 8005-139 Faro, Portugal
- Faculdade de Ciências e Tecnologia (FCT), Universidade do Algarve, 8005-139 Faro, Portugal
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9
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Xie ZL, Zhou ZH. Asymmetric dinuclear, hexanuclear and octanuclear oxovanadium citrates with triazolates: novel mixed-ligands and mixed-valence complexes. Dalton Trans 2023; 53:186-195. [PMID: 38018891 DOI: 10.1039/d3dt03445c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The triazolate-assisted asymmetric dinuclear oxovanadium(IV) citrate [V2O2(cit)(Hdatrz)3]·5H2O (1, H4cit = citric acid, Hdatrz = 1H-1,2,4-triazole-3,5-diamine) and its additive salt [V2O2(cit)(Hdatrz)3][V2O2(cit)2]½·2H2datrz·9.5H2O (2) and the polymerized hexanuclear product [V6O6(μ3-O)2(cit)2(Hdatrz)4]·4H2O (3) have been isolated at different temperatures, respectively. Adduct 2 shows strong evidence for the conversion of a symmetric dinuclear oxovanadium(IV) citrate to a mixed-ligand asymmetric oxovanadium(IV) citrate. Moreover, a fully oxidized trinuclear vanadium(V) species [V3O6(μ2-OH)(μ3-O)(Hdatrz)2]·4.5H2O (4) has also been isolated as a quasi-intermediate product of 3 without the coordination of citrate. Intriguingly, an octanuclear mixed-valence oxovanadium(V/IV) citrate K2{[VIV/V2O2(cit)(Hdatrz)(datrz)]2[VIV2O2(cit)(Hdatrz)(datrz)]2}·27.5H2O (5) has been obtained with different vanadium units, where dinuclear mixed-ligands and mixed-valence oxovanadium(IV/V) citrates [VIV/V2O2(cit)(Hdatrz)(datrz)] (5a) and [VIV2O2(cit)(Hdatrz)(datrz)] (5b) have been trapped. Citrate adopts a μ2-η1:η1:η1:η2 coordination mode in 1, 2 and 5, while a μ3-η1:η1:η1:η2 fashion has been observed in 3. Unlike 1-4, complex 5 contains both protonated and deprotonated triazolates simultaneously, where four triazolates further coordinate in a μ3-η1:η1:η1 manner to construct an octanuclear unit. These different structural features in 1-5 are dominated by flexible multidentate citrates and protonated/deprotonated triazolates, showing their synergistic effects. Furthermore, 1 exhibits a rectangular channel, showing preferential adsorption of O2 and CO2 over gases N2, H2, and CH4.
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Affiliation(s)
- Zhen-Lang Xie
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| | - Zhao-Hui Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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Dumitrescu A, Maxim C, Badea M, Rostas AM, Ciorîță A, Tirsoaga A, Olar R. Decavanadate-Bearing Guanidine Derivatives Developed as Antimicrobial and Antitumor Species. Int J Mol Sci 2023; 24:17137. [PMID: 38138964 PMCID: PMC10742724 DOI: 10.3390/ijms242417137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
To obtain biologically active species, a series of decavanadates (Hpbg)4[H2V10O28]·6H2O (1) (Htbg)4[H2V10O28]·6H2O; (2) (Hgnd)2(Hgnu)4[V10O28]; (3) (Hgnu)6[V10O28]·2H2O; and (4) (pbg = 1-phenyl biguanide, tbg = 1-(o-tolyl)biguanide, gnd = guanidine, and gnu = guanylurea) were synthesized and characterized by several spectroscopic techniques (IR, UV-Vis, and EPR) as well as by single crystal X-ray diffraction. Compound (1) crystallizes in space group P-1 while (3) and (4) adopt the same centrosymmetric space group P21/n. The unusual signal identified by EPR spectroscopy was assigned to a charge-transfer π(O)→d(V) process. Both stability in solution and reactivity towards reactive oxygen species (O2- and OH·) were screened through EPR signal modification. All compounds inhibited the development of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus faecalis bacterial strains in a planktonic state at a micromolar level, the most active being compound (3). However, the experiments conducted at a minimal inhibitory concentration (MIC) indicated that the compounds do not disrupt the biofilm produced by these bacterial strains. The cytotoxicity assayed against A375 human melanoma cells and BJ human fibroblasts by testing the viability, lactate dehydrogenase, and nitric oxide levels indicated compound (1) as the most active in tumor cells.
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Affiliation(s)
- Andreea Dumitrescu
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| | - Catalin Maxim
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| | - Mihaela Badea
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| | - Arpad Mihai Rostas
- Department of Physics of Nanostructured Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Str., 400293 Cluj-Napoca, Romania;
| | - Alexandra Ciorîță
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeș-Bolyai University, 5-7 Clinicilor St., 400001 Cluj-Napoca, Romania
| | - Alina Tirsoaga
- Department of Analytical and Physical Chemistry, Faculty of Chemistry, University of Bucharest, 4-12 Regina Elisabeta Av., District 3, 030018 Bucharest, Romania;
| | - Rodica Olar
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
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11
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Joshi A, Acharya S, Devi N, Gupta R, Sharma D, Singh M. A polyoxomolybdate-based hybrid nano capsule as an antineoplastic agent. Nanoscale Adv 2023; 5:6045-6052. [PMID: 37941962 PMCID: PMC10628982 DOI: 10.1039/d3na00459g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/30/2023] [Indexed: 11/10/2023]
Abstract
Polyoxometalates (POMs) are versatile anionic clusters which have attracted a lot of attention in biomedical investigations. To counteract the increasing resistance effect of cancer cells and the high toxicity of chemotherapeutic treatments, POM-based metallodrugs can be strategically synthesized by adjusting the stereochemical and physicochemical features of POMs. In the present report a polyoxomolybdate (POMo) based organic-inorganic hybrid solid (C6H16N)(C6H15N)2[Mo8O26]·3H2O, solid 1, has been synthesized and its antitumoral activities have been investigated against three cancer cell lines namely, A549 (Lung cancer), HepG2 (Liver cancer), and MCF-7 (Breast cancer) with IC50 values 56.2 μmol L-1, 57.3 μmol L-1, and 55.2 μmol L-1 respectively. The structural characterization revealed that solid 1 consists of an octa molybdate-type cluster connected by three triethylamine molecules via hydrogen bonding interactions. The electron microscopy analysis suggests the nanocapsule-like morphology of solid 1 in the size range of 50-70 nm. The UV-vis absorption spectra were used to assess the binding ability of synthesized POM-based solid 1 to calf thymus DNA (ctDNA), which further explained the binding interaction between POMo and ctDNA and the binding constant was calculated to be 2.246 × 103 giving evidence of groove binding.
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Affiliation(s)
- Arti Joshi
- Institute of Nano Science and Technology Knowledge City, Sector-81 Mohali Punjab India
| | - Sobhna Acharya
- Institute of Nano Science and Technology Knowledge City, Sector-81 Mohali Punjab India
| | - Neeta Devi
- Institute of Nano Science and Technology Knowledge City, Sector-81 Mohali Punjab India
| | - Ruby Gupta
- Institute of Nano Science and Technology Knowledge City, Sector-81 Mohali Punjab India
| | - Deepika Sharma
- Institute of Nano Science and Technology Knowledge City, Sector-81 Mohali Punjab India
| | - Monika Singh
- Institute of Nano Science and Technology Knowledge City, Sector-81 Mohali Punjab India
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12
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Marques A, Carabineiro SAC, Aureliano M, Faleiro L. Evaluation of Gold Complexes to Address Bacterial Resistance, Quorum Sensing, Biofilm Formation, and Their Antiviral Properties against Bacteriophages. Toxics 2023; 11:879. [PMID: 37999531 PMCID: PMC10674251 DOI: 10.3390/toxics11110879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/25/2023]
Abstract
The worldwide increase in antibiotic resistance poses a significant challenge, and researchers are diligently seeking new drugs to combat infections and prevent bacterial pathogens from developing resistance. Gold (I and III) complexes are suitable for this purpose. In this study, we tested four gold (I and III) complexes, (1) chlorotrimethylphosphine gold(I); (2) chlorotriphenylphosphine gold(I); (3) dichloro(2-pyridinecarboxylate) gold (III); and (4) 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ylidene gold(I) chloride, for their antibacterial, antibiofilm, antiviral, and anti-quorum sensing activities. Results reveal that 1 significantly inhibits Escherichia coli DSM 1077 and Staphylococcus aureus ATCC 6538, while 2, 3, and 4 only inhibit S. aureus ATCC 6538. The minimum inhibitory concentration (MIC) of 1 for S. aureus ATCC 6538 is 0.59 μg/mL (1.91 μM), and for methicillin-resistant S. aureus strains MRSA 12 and MRSA 15, it is 1.16 μg/mL (3.75 μM). For E. coli DSM 1077 (Gram-negative), the MIC is 4.63 μg/mL (15 μM), and for multi-resistant E. coli I731940778-1, it is 9.25 μg/mL (30 μM). Complex 1 also disrupts biofilm formation in E. coli and S. aureus after 6 h or 24 h exposure. Moreover, 1 and 2 inhibit the replication of two enterobacteria phages. Anti-quorum sensing potential still requires further clarification. These findings highlight the potential of gold complexes as effective agents to combat bacterial and viral infections.
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Affiliation(s)
- Ana Marques
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal;
- Algarve Biomedical Center—Research Institute, 8005-139 Faro, Portugal
| | - Sónia A. C. Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
| | - Manuel Aureliano
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal;
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, 8005-139 Faro, Portugal
| | - Leonor Faleiro
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal;
- Algarve Biomedical Center—Research Institute, 8005-139 Faro, Portugal
- Champalimaud Research Program, Champalimaud Centre for the Unknown, 1400-038 Lisbon, Portugal
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13
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Malcolm D, Vilà-Nadal L. Computational Study into the Effects of Countercations on the [P 8W 48O 184] 40- Polyoxometalate Wheel. ACS Org Inorg Au 2023; 3:274-282. [PMID: 37810411 PMCID: PMC10557121 DOI: 10.1021/acsorginorgau.3c00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 10/10/2023]
Abstract
Porous metal oxide materials have been obtained from a ring-shaped macrocyclic polyoxometalate (POM) structural building unit, [P8W48O184]40-. This is a tungsten oxide building block with an integrated "pore" of 1 nm in diameter, which, when connected with transition metal linkers, can assemble frameworks across a range of dimensions and which are generally referred to as POMzites. Our investigation proposes to gain a better understanding into the basic chemistry of this POM, specifically local electron densities and locations of countercations within and without the aforementioned pore. Through a rigorous benchmarking process, we discovered that 8 potassium cations, located within the pore, provided us with the most accurate model in terms of mimicking empirical properties to a sufficient degree of accuracy while also requiring a relatively small number of computer cores and hours to successfully complete a calculation. Additionally, we analyzed two other similar POMs from the literature, [As8W48O184]40- and [Se8W48O176]32-, in the hopes of determining whether they could be similarly incorporated into a POMzite network; given their close semblance in terms of local electron densities and interaction with potassium cations, we judge these POMs to be theoretically suitable as POMzite building blocks. Finally, we experimented with substituting different cations into the [P8W48O184]40- pore to observe the effect on pore dimensions and overall reactivity; we observed that the monocationic structures, particularly the Li8[P8W48O184]32- framework, yielded the least polarized structures. This correlates with the literature, validating our methodology for determining general POM characteristics and properties moving forward.
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Affiliation(s)
- Daniel Malcolm
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Laia Vilà-Nadal
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
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14
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Shi F, Chen Y, Dong C, Wang J, Song C, Zhang Y, Li Z, Huang X. Ni/Mn-Complex-Tethered Tetranuclear Polyoxovanadates: Crystal Structure and Inhibitory Activity on Human Hepatocellular Carcinoma (HepG-2). Molecules 2023; 28:6843. [PMID: 37836686 PMCID: PMC10574323 DOI: 10.3390/molecules28196843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Polyoxometalates (POMs) exhibit unique structural characteristics and excellent physical and chemical properties, which have attracted significant attention from scholars in the fields of anticancer research and chemotherapy. Herein, we successfully synthesized and structurally characterized two novel polyoxovanadates (POVs), denoted as POVs-1 and POVs-2, where [M(1-vIM)4]2[VV4O12]·H2O (M: NiII and MnII, 1-vinylimidazole abbreviated as 1-vIM) serve as ligands. The two POVs are isomeric and consist of fundamental structural units, each comprising one [V4O12]4- cluster, two [M(1-vIM)4]2+ cations, and one water molecule. Subsequently, we evaluated the cell viability of human hepatocellular carcinoma (HepG-2) cells treated with the synthesized POVs using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazoliumbromide) assay. And the changes in cell nucleus morphology, mitochondrial membrane potential (Δψm), and reactive oxygen species levels in HepG-2 exposed to POVs were monitored using specific fluorescent staining techniques. Both hybrid POVs showed potent inhibitory activities, induing apoptosis in HepG-2 cells along with significant mitochondria dysfunction and a burst of reactive oxygen species. Notably, the inhibitory effects of POVs-2 were more pronounced than those of POVs-1, which is primarily attributed to the different transition metal ions present. These findings underscore the intricate relationship between the metal components, structural characteristics, and the observed antitumor activities in HepG-2 cells.
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Affiliation(s)
- Fumei Shi
- School of Life Science, Liaocheng University, Liaocheng 252000, China;
| | - Yilan Chen
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
| | - Chuanheng Dong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
| | - Jiajia Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
| | - Chunman Song
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
| | - Yalin Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
| | - Zhen Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
| | - Xianqiang Huang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (Y.C.); (C.D.); (J.W.); (C.S.); (X.H.)
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15
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Santos MFA, Pessoa JC. Interaction of Vanadium Complexes with Proteins: Revisiting the Reported Structures in the Protein Data Bank (PDB) since 2015. Molecules 2023; 28:6538. [PMID: 37764313 PMCID: PMC10536487 DOI: 10.3390/molecules28186538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
The structural determination and characterization of molecules, namely proteins and enzymes, is crucial to gaining a better understanding of their role in different chemical and biological processes. The continuous technical developments in the experimental and computational resources of X-ray diffraction (XRD) and, more recently, cryogenic Electron Microscopy (cryo-EM) led to an enormous growth in the number of structures deposited in the Protein Data Bank (PDB). Bioinorganic chemistry arose as a relevant discipline in biology and therapeutics, with a massive number of studies reporting the effects of metal complexes on biological systems, with vanadium complexes being one of the relevant systems addressed. In this review, we focus on the interactions of vanadium compounds (VCs) with proteins. Several types of binding are established between VCs and proteins/enzymes. Considering that the V-species that bind may differ from those initially added, the mentioned structural techniques are pivotal to clarifying the nature and variety of interactions of VCs with proteins and to proposing the mechanisms involved either in enzymatic inhibition or catalysis. As such, we provide an account of the available structural information of VCs bound to proteins obtained by both XRD and/or cryo-EM, mainly exploring the more recent structures, particularly those containing organic-based vanadium complexes.
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Affiliation(s)
- Marino F. A. Santos
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Chemistry Department, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Centro de Química Estrutural, Departamento de Engenharia Química, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - João Costa Pessoa
- Centro de Química Estrutural, Departamento de Engenharia Química, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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16
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Barbosa MDM, de Lima LMA, Alves WADS, de Lima EKB, da Silva LA, da Silva TD, Postal K, Ramadan M, Kostenkova K, Gomes DA, Nunes GG, Pereira MC, da Silva WE, Belian MF, Crans DC, Lira EC. In Vitro, Oral Acute, and Repeated 28-Day Oral Dose Toxicity of a Mixed-Valence Polyoxovanadate Cluster. Pharmaceuticals (Basel) 2023; 16:1232. [PMID: 37765040 PMCID: PMC10536805 DOI: 10.3390/ph16091232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/21/2023] [Accepted: 08/13/2023] [Indexed: 09/29/2023] Open
Abstract
Polyoxovanadates (POV) are a subgroup of polyoxometalates (POM), which are nanosized clusters with reported biological activities. This manuscript describes the first toxicity evaluation of a mixed-valence polyoxovanadate, pentadecavanadate, (Me4N)6[V15O36Cl], abbreviated as V15. Cytotoxicity experiments using peripheral blood mononuclear cells (PBMC), larvae of Artemia salina Leach, and in vivo oral acute and repeated 28-day doses in mice was carried out. The LC50 values in PBMC cells and A. salina were 17.5 ± 5.8 μmol L-1, and 17.9 µg L-1, respectively, which indicates high cytotoxic activity. The toxicity in mice was not observed upon acute exposure in a single dose, however, the V15 repeated 28-day oral administration demonstrated high toxicity using 25 mg/kg, 50 mg/kg and, 300 mg/kg doses. The biochemical and hematological analyses during the 28-day administration of V15 showed significant alteration of the metabolic parameters related to the kidney and liver, suggesting moderate toxicity. The V15 toxicity was attributed to the oxidative stress and lipid peroxidation, once thiobarbituric acid (TBAR) levels significantly increased in both males and females treated with high doses of the POV and also in males treated with a lower dose of the POV. This is the first study reporting a treatment-related mortality in animals acutely administrated with a mixed-valence POV, contrasting with the well-known, less toxic decavanadate. These results document the toxicity of this mixed-valence POV, which may not be suitable for biomedical applications.
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Affiliation(s)
- Mariana de M. Barbosa
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Lidiane M. A. de Lima
- Departamento de Química, Universidade Federal Rural de Pernambuco, Recife 52171-900, PE, Brazil; (L.M.A.d.L.); (W.E.d.S.); (M.F.B.)
| | - Widarlane A. da S. Alves
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Eucilene K. B. de Lima
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Luzia A. da Silva
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Thiago D. da Silva
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Kahoana Postal
- Centro Politécnico, Departamento de Química, Universidade Federal do Paraná, Curitiba 81530-900, PR, Brazil; (K.P.); (G.G.N.)
| | - Mohammad Ramadan
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA; (M.R.); (K.K.)
| | - Kateryna Kostenkova
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA; (M.R.); (K.K.)
| | - Dayane A. Gomes
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Giovana G. Nunes
- Centro Politécnico, Departamento de Química, Universidade Federal do Paraná, Curitiba 81530-900, PR, Brazil; (K.P.); (G.G.N.)
| | - Michelly C. Pereira
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
| | - Wagner E. da Silva
- Departamento de Química, Universidade Federal Rural de Pernambuco, Recife 52171-900, PE, Brazil; (L.M.A.d.L.); (W.E.d.S.); (M.F.B.)
| | - Mônica F. Belian
- Departamento de Química, Universidade Federal Rural de Pernambuco, Recife 52171-900, PE, Brazil; (L.M.A.d.L.); (W.E.d.S.); (M.F.B.)
| | - Debbie C. Crans
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA; (M.R.); (K.K.)
- Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523, USA
| | - Eduardo C. Lira
- Centro de Biociências, Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife 50670-901, PE, Brazil; (M.d.M.B.); (W.A.d.S.A.); (E.K.B.d.L.); (L.A.d.S.); (T.D.d.S.); (D.A.G.); (M.C.P.)
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17
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Routh K, Pradeep CP. Multifunctional Aryl Sulfonium Decavanadates: Tuning the Photochromic and Heterogeneous Oxidative Desulfurization Catalytic Properties Using Salicylaldehyde-type Functional Moieties on Counterions. Inorg Chem 2023; 62:13775-13792. [PMID: 37575023 DOI: 10.1021/acs.inorgchem.3c01470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Multifunctional materials based on polyoxovanadates (POVs) have rarely been reported. Herein, we used aryl sulfonium counterions (ASCIs) bearing a salicylaldehyde-type functionality to tune the properties of decavanadate ([V10O28]6-)-based hybrids for their application in photochromism and heterogeneous oxidative desulfurization (ODS) catalysis. The counterions FHPDS ((3-formyl-4-hydroxyphenyl)dimethylsulfonium), DFHPDS ((3,5-diformyl-4-hydroxyphenyl)dimethylsulfonium), and EFPDS ((4-ethoxy-3-formylphenyl)dimethylsulfonium) were clubbed with the decavanadate cluster to generate the hybrids (FHPDS)4[H2V10O28](H2O)4 (HY1), (DFHPDS)4[H2V10O28](H2O)3 (HY2), and (EFPDS)4[H2V10O28](H2O)6 (HY3). The photochromic properties of these hybrids were tested under 365 nm irradiation, which showed a color change from yellow to green. Different hybrids exhibited different photocoloration half-life (t1/2) values in the range of 0.77-28.38 min, suggesting the dependence of the photocoloration properties upon functional groups on the counterions. The hybrid HY2, having a 2,6-diformyl phenol moiety on the ASCI, exhibited an impressive t1/2 of 0.77 min. UP to 70% reversibility of photocoloration was achieved for the best photochromic hybrid HY2 in 48 h at 70 °C under an oxygen atmosphere. Theoretical and experimental data suggested that some of these aryl sulfonium POVs follow a different e--h+ stabilization mechanism than traditional sulfonium POM hybrids. Further, the salicylaldehyde-type ASCIs control the solubility of the decavanadate hybrids, which enables their application as heterogeneous catalysts for the selective oxidation of various sulfides. The nature of the substituents on the ASCIs also affected their catalytic activities; the counterion that facilitates the reversible V4+/V5+ switching enhances the catalytic ODS efficiency of the hybrids. Using HY2 as the catalyst, up to 99% conversion and 96% selectivity toward sulfones were achieved in dibenzothiophene (DBT) oxidation. The present study suggests a new promising approach for controlling POVs' photoresponsive and catalytic properties by using ASCIs bearing salicylaldehyde-type functional moieties.
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Affiliation(s)
- Kousik Routh
- School of Chemical Sciences, Indian Institute of Technology Mandi, Kamand 175005, Himachal Pradesh, India
| | - Chullikkattil P Pradeep
- School of Chemical Sciences, Indian Institute of Technology Mandi, Kamand 175005, Himachal Pradesh, India
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18
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Tian N, Chu D, Wang H, Yan H. Synthesis and anti-HIV-1 activity evaluation of Keggin-type polyoxometalates with amino acid as organic cations. Bioorg Med Chem Lett 2023; 91:129380. [PMID: 37331638 DOI: 10.1016/j.bmcl.2023.129380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/05/2023] [Accepted: 06/12/2023] [Indexed: 06/20/2023]
Abstract
Polyoxometalates (POMs), as a class of multinuclear metal oxygen clusters, have promising biological activities. And their amino acid derivatives will lead to better pharmacological activity by the diversity in structures and properties. With reference to the anti-HIV-1 activities of PM-19 (K7PTi2W10O40) and its pyridinium derivatives, a series of novel Keggin-type POMs with amino acid as organic cations (A7PTi2W10O40) were synthesized by hydrothermal synthetic method. The final products were characterized by 1H NMR, Elemental analyzes and single crystal X-ray diffraction. All the synthesized compounds were obtained in the yields of 44.3-61.7% and evaluated the cytotoxicity and anti-HIV-1 activity in vitro. Compared with the reference compound PM-19, the target compounds had a lower toxicity to TZM-bl cells and a higher inhibitory activity against HIV-1. Among them, compound A3 showed higher anti-HIV-1 activity with IC50 of 0.11 nM than that of PM-19 with 4.68 nM. This study demonstrated that combination of Keggin-type POMs and amino acids can be a new strategy to enhance the anti-HIV-1 biological activity of POMs. All results will be expected to helpful for developing more potent and effective HIV-1 inhibitors.
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Affiliation(s)
- Nana Tian
- Beijing Tide Pharmaceutical Co., Ltd, Beijing 100176, China
| | - Dongchen Chu
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Hongjun Wang
- Beijing Tide Pharmaceutical Co., Ltd, Beijing 100176, China.
| | - Hong Yan
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
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19
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Gumerova NI, Rompel A. Speciation atlas of polyoxometalates in aqueous solutions. Sci Adv 2023; 9:eadi0814. [PMID: 37343109 DOI: 10.1126/sciadv.adi0814] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/15/2023] [Indexed: 06/23/2023]
Abstract
Speciation is the key parameter in solution chemistry that describes the composition, concentration, and oxidation state of each chemical form of an element present in a sample. The speciation study of complex polyatomic ions has remained challenging because of the large number of factors affecting stability and the limited number of direct methods. To address these challenges, we developed the speciation atlas of 10 polyoxometalates commonly used in catalytic and biological applications in aqueous solutions, where the speciation atlas provides both a species distribution database and a predictive model for other polyoxometalates to be used. Compiled for six different polyoxometalate archetypes with three types of addenda ions based on 1309 nuclear magnetic resonance spectra under 54 different conditions, the atlas has revealed a previously unknown behavior of polyoxometalates that may account for their potency as biological agents and catalysts. The atlas is intended to promote the interdisciplinary use of metal oxides in various scientific fields.
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Affiliation(s)
- Nadiia I Gumerova
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, 1090 Wien, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, 1090 Wien, Austria
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Ścibior A, Aureliano M, Holder AA, Llopis J. Metals and Metal Complexes in Diseases with a Focus on COVID-19: Facts and Opinions. Biology (Basel) 2023; 12:868. [PMID: 37372151 DOI: 10.3390/biology12060868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
In the present Special Issue on "Metals and Metal Complexes in Diseases with a Focus on COVID-19: Facts and Opinions", an attempt has been made to include reports updating our knowledge of elements considered to be potential candidates for therapeutic applications and certain metal-containing species, which are extensively being examined towards their potential biomedical use due to their specific physicochemical properties [...].
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Affiliation(s)
- Agnieszka Ścibior
- Laboratory of Oxidative Stress, Department of Biomedicine and Environmental Research, The John Paul II Catholic University of Lublin, 20-708 Lublin, Poland
| | - Manuel Aureliano
- Faculdade de Ciências e Tecnologia (FCT), Campus de Gambelas, Universidade do Algarve, 8005-139 Faro, Portugal
- Centro de Ciências do Mar (CCMar), Campus de Gambelas, 8005-139 Faro, Portugal
| | - Alvin A Holder
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | - Juan Llopis
- Institute of Nutrition and Food Technology "José Mataix Verdú", Department of Physiology, Biomedical Research Center, University of Granada, Avda del Conocimiento sn., 18100 Armilla, Granada, Spain
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Rafieeshad M, Gumerova NI, Tanuhadi E, Giester G, Čipčić-Paljetak H, Verbanac D, Rompel A. Synthesis, Characterization, and Antibacterial Activity of Ni-Substituted Krebs-type Sandwich-Tungstobismuthates Functionalized with Amino Acids. Inorg Chem 2023. [PMID: 37285473 DOI: 10.1021/acs.inorgchem.3c00747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Four new Ni-substituted Krebs-type sandwich-tungstobismuthates, K4Ni2[{Ni(β-ala)(H2O)2}2{Ni(H2O)}2{Ni(H2O)(η2-β-ala)}2(B-β-BiW9O33)2]·49H2O {(β-ala)4(Ni3)2(BiW9)2}, K3.5Na6.5[{Ni(η3-L-asp)}2(WO2)2(B-β-BiW9O33)2]·36H2O·L-asp {(L-asp)2(NiW)2(BiW9)2}, K4Na6[{Ni(gly)(H2O)2}2(WO2)2(B-β-BiW9O33)2]·86H2O {(gly)2(NiW)2(BiW9)2}, and K2Na8[{Ni(η2-serinol) (H2O)}2{Ni(H2O)2}2(B-β-BiW9O33)2]·42H2O {(serinol)2Ni4(BiW9)2} have been synthesized by one-pot solution methods. All compounds have been characterized in the solid state by single-crystal X-ray diffraction (SXRD), powder X-ray diffraction (PXRD), elemental and thermogravimetric analyses, and infrared spectroscopy (IR), as well as by UV-vis spectroscopy in solution. The antibacterial activity of all compounds was studied against four bacterial strains by the determination of the minimum inhibitory concentration (MIC). The results showed that only {(β-ala)4(Ni3)2(BiW9)2} demonstrates antibacterial activity (MIC is in the range from 8 to 256 μg/mL) compared to three other Ni-Krebs sandwiches.
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Affiliation(s)
- Morteza Rafieeshad
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, Wien 1090, Austria
| | - Nadiia I Gumerova
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, Wien 1090, Austria
| | - Elias Tanuhadi
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, Wien 1090, Austria
| | - Gerald Giester
- Fakultät für Geowissenschaften, Geographie und Astronomie, Institut für Mineralogie und Kristallographie, Universität Wien, Josef-Holaubek-Platz 2, Wien 1090, Austria
| | - Hana Čipčić-Paljetak
- Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Šalata 2, Zagreb 10000, Croatia
| | - Donatella Verbanac
- Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, Zagreb 10000, Croatia
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Josef-Holaubek-Platz 2, Wien 1090, Austria
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Banerjee A, Patra SA, Sahu G, Sciortino G, Pisanu F, Garribba E, Carvalho MFNN, Correia I, Pessoa JC, Reuter H, Dinda R. A Series of Non-Oxido V IV Complexes of Dibasic ONS Donor Ligands: Solution Stability, Chemical Transformations, Protein Interactions, and Antiproliferative Activity. Inorg Chem 2023; 62:7932-7953. [PMID: 37154533 PMCID: PMC10367067 DOI: 10.1021/acs.inorgchem.3c00753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A series of mononuclear non-oxido vanadium(IV) complexes, [VIV(L1-4)2] (1-4), featuring tridentate bi-negative ONS chelating S-alkyl/aryl-substituted dithiocarbazate ligands H2L1-4, are reported. All the synthesized non-oxido VIV compounds are characterized by elemental analysis, spectroscopy (IR, UV-vis, and EPR), ESI-MS, as well as electrochemical techniques (cyclic voltammetry). Single-crystal X-ray diffraction studies of 1-3 reveal that the mononuclear non-oxido VIV complexes show distorted octahedral (1 and 2) or trigonal prismatic (3) arrangement around the non-oxido VIV center. EPR and DFT data indicate the coexistence of mer and fac isomers in solution, and ESI-MS results suggest a partial oxidation of [VIV(L1-4)2] to [VV(L1-4)2]+ and [VVO2(L1-4)]-; therefore, all these three complexes are plausible active species. Complexes 1-4 interact with bovine serum albumin (BSA) with a moderate binding affinity, and docking calculations reveal non-covalent interactions with different regions of BSA, particularly with Tyr, Lys, Arg, and Thr residues. In vitro cytotoxic activity of all complexes is assayed against the HT-29 (colon cancer) and HeLa (cervical cancer) cells and compared with the NIH-3T3 (mouse embryonic fibroblast) normal cell line by MTT assay and DAPI staining. The results suggest that complexes 1-4 are cytotoxic in nature and induce cell death in the cancer cell lines by apoptosis and that a mixture of VIV, VV, and VVO2 species could be responsible for the biological activity.
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Affiliation(s)
- Atanu Banerjee
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Sushree Aradhana Patra
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Gurunath Sahu
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Giuseppe Sciortino
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Tarragona 43007, Spain
| | - Federico Pisanu
- Dipartimento di Medicina, Chirurgia e Farmacia, Università di Sassari, Viale San Pietro, Sassari I-07100, Italy
| | - Eugenio Garribba
- Dipartimento di Medicina, Chirurgia e Farmacia, Università di Sassari, Viale San Pietro, Sassari I-07100, Italy
| | - M Fernanda N N Carvalho
- Centro de Química Estrutural and Departamento de Engenharia Química, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, Lisboa 1049-001, Portugal
| | - Isabel Correia
- Centro de Química Estrutural and Departamento de Engenharia Química, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, Lisboa 1049-001, Portugal
| | - João Costa Pessoa
- Centro de Química Estrutural and Departamento de Engenharia Química, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, Lisboa 1049-001, Portugal
| | - Hans Reuter
- Institute of Chemistry of New Materials, University of Osnabrück, Barbarastraße 6, Osnabruck 49069, Germany
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
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Lu X, Geletii YV, Cheng T, Hill CL. Role of Multiple Vanadium Centers on Redox Buffering and Rates of Polyvanadomolybdate-Cu(II)-Catalyzed Aerobic Oxidations. Inorg Chem 2023; 62:5822-5830. [PMID: 36977374 PMCID: PMC10091476 DOI: 10.1021/acs.inorgchem.3c00469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
A recent report established that the tetrabutylammonium (TBA) salt of hexavanadopolymolybdate TBA4H5[PMo6V6O40] (PV6Mo6) serves as the redox buffer with Cu(II) as a co-catalyst for aerobic deodorization of thiols in acetonitrile. Here, we document the profound impact of vanadium atom number (x = 0-4 and 6) in TBA salts of PVxMo12-xO40(3+x)- (PVMo) on this multicomponent catalytic system. The PVMo cyclic voltammetric peaks from 0 to -2000 mV vs Fc/Fc+ under catalytic conditions (acetonitrile, ambient T) are assigned and clarify that the redox buffering capability of the PVMo/Cu catalytic system derives from the number of steps, the number of electrons transferred each step, and the potential ranges of each step. All PVMo are reduced by varying numbers of electrons, from 1 to 6, in different reaction conditions. Significantly, PVMo with x ≤ 3 not only has much lower activity than when x > 3 (for example, the turnover frequencies (TOF) of PV3Mo9 and PV4Mo8 are 8.9 and 48 s-1, respectively) but also, unlike the latter, cannot maintain steady reduction states when the Mo atoms in these polyoxometalate (POMs) are also reduced. Stopped-flow kinetics measurements reveal that Mo atoms in Keggin PVMo exhibit much slower electron transfer rates than V atoms. There are two kinetic arguments: (a) In acetonitrile, the first formal potential of PMo12 is more positive than that of PVMo11 (-236 and -405 mV vs Fc/Fc+); however, the initial reduction rates are 1.06 × 10-4 s-1 and 0.036 s-1 for PMo12 and PVMo11, respectively. (b) In aqueous sulfate buffer (pH = 2), a two-step kinetics is observed for PVMo11 and PV2Mo10, where the first and second steps are assigned to reduction of the V and Mo centers, respectively. Since fast and reversible electron transfers are key for the redox buffering behavior, the slower electron transfer kinetics of Mo preclude these centers functioning in redox buffering that maintains the solution potential. We conclude that PVMo with more vanadium atoms allows the POM to undergo more and faster redox changes, which enables the POM to function as a redox buffer dictating far higher catalytic activity.
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Affiliation(s)
- Xinlin Lu
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Yurii V Geletii
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Ting Cheng
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Craig L Hill
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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Aureliano M, De Sousa-Coelho AL, Dolan CC, Roess DA, Crans DC. Biological Consequences of Vanadium Effects on Formation of Reactive Oxygen Species and Lipid Peroxidation. Int J Mol Sci 2023; 24:ijms24065382. [PMID: 36982458 PMCID: PMC10049017 DOI: 10.3390/ijms24065382] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/28/2023] [Accepted: 03/06/2023] [Indexed: 03/17/2023] Open
Abstract
Lipid peroxidation (LPO), a process that affects human health, can be induced by exposure to vanadium salts and compounds. LPO is often exacerbated by oxidation stress, with some forms of vanadium providing protective effects. The LPO reaction involves the oxidation of the alkene bonds, primarily in polyunsaturated fatty acids, in a chain reaction to form radical and reactive oxygen species (ROS). LPO reactions typically affect cellular membranes through direct effects on membrane structure and function as well as impacting other cellular functions due to increases in ROS. Although LPO effects on mitochondrial function have been studied in detail, other cellular components and organelles are affected. Because vanadium salts and complexes can induce ROS formation both directly and indirectly, the study of LPO arising from increased ROS should include investigations of both processes. This is made more challenging by the range of vanadium species that exist under physiological conditions and the diverse effects of these species. Thus, complex vanadium chemistry requires speciation studies of vanadium to evaluate the direct and indirect effects of the various species that are present during vanadium exposure. Undoubtedly, speciation is important in assessing how vanadium exerts effects in biological systems and is likely the underlying cause for some of the beneficial effects reported in cancerous, diabetic, neurodegenerative conditions and other diseased tissues impacted by LPO processes. Speciation of vanadium, together with investigations of ROS and LPO, should be considered in future biological studies evaluating vanadium effects on the formation of ROS and on LPO in cells, tissues, and organisms as discussed in this review.
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Affiliation(s)
- Manuel Aureliano
- Faculdade de Ciências e Tecnologia (FCT), Universidade do Algarve, 8005-139 Faro, Portugal
- CCMar, Universidade do Algarve, 8005-139 Faro, Portugal
- Correspondence: (M.A.); (D.C.C.); Tel.: +351-289-900-805 (M.A.)
| | - Ana Luísa De Sousa-Coelho
- Escola Superior de Saúde, Universidade do Algarve (ESSUAlg), 8005-139 Faro, Portugal
- Algarve Biomedical Center Research Institute (ABC-RI), 8005-139 Faro, Portugal
- Algarve Biomedical Center (ABC), 8005-139 Faro, Portugal
| | - Connor C. Dolan
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Deborah A. Roess
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Debbie C. Crans
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
- Cellular and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523, USA
- Correspondence: (M.A.); (D.C.C.); Tel.: +351-289-900-805 (M.A.)
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Abstract
Polyoxometalates (POMs) are oxoanions of transition metal ions, such as V, Mo, W, Nb, and Pd, forming a variety of structures with a wide range of applications. Herein, we analyzed recent studies on the effects of polyoxometalates as anticancer agents, particularly their effects on the cell cycle. To this end, a literature search was carried out between March and June 2022, using the keywords "polyoxometalates" and "cell cycle". The effects of POMs on selected cell lines can be diverse, such as their effects in the cell cycle, protein expression, mitochondrial effects, reactive oxygen species (ROS) production, cell death and cell viability. The present study focused on cell viability and cell cycle arrest. Cell viability was analyzed by dividing the POMs into sections according to the constituent compound, namely polyoxovanadates (POVs), polyoxomolybdates (POMos), polyoxopaladates (POPds) and polyoxotungstates (POTs). When comparing and sorting the IC50 values in ascending order, we obtained first POVs, then POTs, POPds and, finally, POMos. When comparing clinically approved drugs and POMs, better results of POMs in relation to drugs were observed in many cases, since the dose required to have an inhibitory concentration of 50% is 2 to 200 times less, depending on the POMs, highlighting that these compounds could become in the future an alternative to existing drugs in cancer therapy.
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Affiliation(s)
- Fátima Carvalho
- Faculdade de Medicina e Ciências Biomédicas (FMCB), Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Manuel Aureliano
- Faculdade de Ciências e Tecnologia (FCT), Universidade do Algarve, 8005-139 Faro, Portugal
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, 8005-139 Faro, Portugal
- Correspondence: ; Tel.: +351-289-900-805
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Padilla A, Manganaro JF, Huesgen L, Roess DA, Brown MA, Crans DC. Targeting Epigenetic Changes Mediated by Members of the SMYD Family of Lysine Methyltransferases. Molecules 2023; 28:molecules28042000. [PMID: 36838987 PMCID: PMC9967872 DOI: 10.3390/molecules28042000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
A comprehensive understanding of the mechanisms involved in epigenetic changes in gene expression is essential to the clinical management of diseases linked to the SMYD family of lysine methyltransferases. The five known SMYD enzymes catalyze the transfer of donor methyl groups from S-adenosylmethionine (SAM) to specific lysines on histones and non-histone substrates. SMYDs family members have distinct tissue distributions and tissue-specific functions, including regulation of development, cell differentiation, and embryogenesis. Diseases associated with SMYDs include the repressed transcription of SMYD1 genes needed for the formation of ion channels in the heart leading to heart failure, SMYD2 overexpression in esophageal squamous cell carcinoma (ESCC) or p53-related cancers, and poor prognosis associated with SMYD3 overexpression in more than 14 types of cancer including breast cancer, colon cancer, prostate cancer, lung cancer, and pancreatic cancer. Given the importance of epigenetics in various pathologies, the development of epigenetic inhibitors has attracted considerable attention from the pharmaceutical industry. The pharmacologic development of the inhibitors involves the identification of molecules regulating both functional SMYD SET (Suppressor of variegation, Enhancer of Zeste, Trithorax) and MYND (Myeloid-Nervy-DEAF1) domains, a process facilitated by available X-ray structures for SMYD1, SMYD2, and SMYD3. Important leads for potential pharmaceutical agents have been reported for SMYD2 and SMYD3 enzymes, and six epigenetic inhibitors have been developed for drugs used to treat myelodysplastic syndrome (Vidaza, Dacogen), cutaneous T-cell lymphoma (Zoinza, Isrodax), and peripheral T-cell lymphoma (Beleodag, Epidaza). The recently demonstrated reversal of SMYD histone methylation suggests that reversing the epigenetic effects of SMYDs in cancerous tissues may be a desirable target for pharmacological development.
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Affiliation(s)
- Alyssa Padilla
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523-1617, USA
| | - John F. Manganaro
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA
| | - Lydia Huesgen
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523-1617, USA
| | - Deborah A. Roess
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523-1617, USA
| | - Mark A. Brown
- Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523-1005, USA
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO 80523-1678, USA
- Graduate Degree Program in Ecology, Department of Ethnic Studies, Global Health and Health Disparities, Colorado School of Public Health, Colorado State University, Fort Collins, CO 80523-1612, USA
- Correspondence: (M.A.B.); (D.C.C.)
| | - Debbie C. Crans
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA
- Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523-1005, USA
- Correspondence: (M.A.B.); (D.C.C.)
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Abdelhameed SAM, de Azambuja F, Vasović T, Savić ND, Ćirković Veličković T, Parac-Vogt TN. Regioselective protein oxidative cleavage enabled by enzyme-like recognition of an inorganic metal oxo cluster ligand. Nat Commun 2023; 14:486. [PMID: 36717594 PMCID: PMC9887005 DOI: 10.1038/s41467-023-36085-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 01/16/2023] [Indexed: 02/01/2023] Open
Abstract
Oxidative modifications of proteins are key to many applications in biotechnology. Metal-catalyzed oxidation reactions efficiently oxidize proteins but with low selectivity, and are highly dependent on the protein surface residues to direct the reaction. Herein, we demonstrate that discrete inorganic ligands such as polyoxometalates enable an efficient and selective protein oxidative cleavage. In the presence of ascorbate (1 mM), the Cu-substituted polyoxometalate K8[Cu2+(H2O)(α2-P2W17O61)], (CuIIWD, 0.05 mM) selectively cleave hen egg white lysozyme under physiological conditions (pH =7.5, 37 °C) producing only four bands in the gel electropherogram (12.7, 11, 10, and 5 kDa). Liquid chromatography/mass spectrometry analysis reveals a regioselective cleavage in the vicinity of crystallographic CuIIWD/lysozyme interaction sites. Mechanistically, polyoxometalate is critical to position the Cu at the protein surface and limit the generation of oxidative species to the proximity of binding sites. Ultimately, this study outlines the potential of discrete, designable metal oxo clusters as catalysts for the selective modification of proteins through radical mechanisms under non-denaturing conditions.
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Affiliation(s)
| | | | - Tamara Vasović
- Center of Excellence for Molecular Food Sciences & Department of Biochemistry, University of Belgrade - Faculty of Chemistry, Belgrade, Serbia
| | - Nada D Savić
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Tanja Ćirković Veličković
- Center of Excellence for Molecular Food Sciences & Department of Biochemistry, University of Belgrade - Faculty of Chemistry, Belgrade, Serbia.,Ghent University Global Campus, Yeonsu-gu, Incheon, South Korea.,Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.,Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Tatjana N Parac-Vogt
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001, Leuven, Belgium.
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Iijima J, Yamase T. New synergistic antibacterial mechanism of bulky mixed Ti/w hetero-polyoxometalates composed of multi lacunary Keggin structure with oxacillin against vancomycin intermediate-resistant Staphylococcus aureus. J Microorg Control 2023; 28:101-107. [PMID: 37866891 DOI: 10.4265/jmc.28.3_101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Considering the lack of detailed research on the antibacterial mechanism of polyoxometalates, we examined the synergistic effect of novel bulky mixed Ti/W hetero-polyoxometalates (K9.5H2.5 [α-Ge2Ti4W20O78]・ 29H2O; αTi4, K9H5 [α-Ge2Ti6W18O77]・16H2O; αTi6, K23H5[α-Ge4Ti12W36O154]・39H2O; αTi12, K9H5 [β-Ge2Ti6W18O77]・ 45H2O; βTi6) with the antibiotic oxacillin against vancomycin intermediate-resistant Staphylococcus aureus (VISA) using fractional inhibitory concentration (FIC) index and growth curve in this study. All polyoxometalates used in this study showed remarkable synergistic effects with oxacillin. Its synergistic antibacterial mechanism was examined using reverse transcription PCR (RT-PCR) and penicillin binding protein-2' (PBP2') latex agglutination test. The results suggested that these polyoxometalates did not inhibit mecA gene transcription but resulted in PBP2' protein malfunction. From these results, we concluded that the substances producing resistance in VISA were affected by polyoxometalates depending on their molecular size, facilitating a synergistic antibacterial effect with oxacillin.
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Affiliation(s)
- Jun Iijima
- Chemical Resource Laboratory, Tokyo Institute of Technology
- Faculty of Pharmacy, Iryo Sosei University
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29
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Rehder D. Vanadium in biological systems and medicinal applications. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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30
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Wang JL, Cao JP, Zhu YH, Wang Q, Li NF, Fan XR, Mei H, Xu Y. Four unprecedented V14 clusters as highly efficient heterogeneous catalyst for CO2 fixation with epoxides and oxidation of sulfides. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1424-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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31
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He LL, Cui LP, Yu K, Lv JH, Ma YJ, Tian R, Zhou BB. The pseudocapacitance and sensing materials constructed by Dawson/basket-like phosphomolybdate. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Biswas BK, Biswas N, Saha S, Rahaman A, Mandal DP, Bhattacharjee S, Sepay N, Zangrando E, Garribba E, Roy Choudhury C. Interaction with bioligands and in vitro cytotoxicity of a new dinuclear dioxido vanadium(V) complex. J Inorg Biochem 2022; 237:111980. [PMID: 36109193 DOI: 10.1016/j.jinorgbio.2022.111980] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/16/2022] [Accepted: 08/24/2022] [Indexed: 01/18/2023]
Abstract
One centrosymmetric bis(μ-oxido)-bridged vanadium(V) dimer with molecular formula [(VVO2)2(pedf)2] (1) has been synthesized from the reaction of VOSO4·5H2O with a Schiff base ligand (abbreviated with pedf-) obtained from 2-acetylpyridine and 2-furoic hydrazide in methanol. Complex 1 was characterized by elemental analysis, UV-visible (UV-Vis), Fourier-transform infrared spectra (FT-IR), cyclic voltammetry (CV), electron paramagnetic resonance spectroscopy (EPR) and electrospray ionization-mass spectrometry (ESI-MS) techniques along with single crystal X-ray diffraction (SCXRD). The FT-IR spectral data of 1 indicated the involvement of oxygen and azomethine nitrogen in coordination to the central metal ion. The crystallographic studies revealed a dinuclear oxovanadium(V) complex with the Schiff base coordinated via the ONN donor set with formation of two five-membered chelate rings resulting in a distorted octahedral geometry. The interaction of 1 with calf thymus DNA (CT-DNA) was investigated by spectroscopic measurements and results suggested that the complex binds to CT-DNA via moderate intercalative mode with a binding constant (Kb) around 103 M-1. In addition, the in vitro protein binding behavior was studied by fluorescence spectrophotometric method using both bovine serum albumin (BSA) and human serum albumin (HSA) and a static quenching mechanism was observed for the interaction of the complex with both albumins that occurs with a Kb in the range (5-6) × 103 M-1. In vitro cytotoxicity of complex 1 on lung cancer cells (A549) and human skin carcinoma cell line (A431) demonstrated that the complex had a broad-spectrum of anti-proliferative activity with IC50 value of 64.2 μM and 56.2 μM.
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33
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Scalese G, Arhouma Z, Kostenkova K, Pérez-Díaz L, Crick DC, Gambino D, Crans DC. Do bioactive 8-hydroxyquinolines oxidovanadium(IV) and (V) complexes inhibit the growth of M. smegmatis? J Inorg Biochem 2022; 237:111984. [PMID: 36152468 DOI: 10.1016/j.jinorgbio.2022.111984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 01/18/2023]
Abstract
The antiproliferative effects of four series of VIVO- and VVO-based compounds containing 8-hydroxyquinoline ligands on the bacterium Mycolicibacterium smegmatis (M. smeg) were investigated. The effects on M. smeg were compared to the antiproliferative effects on the protozoan parasite Trypanosoma cruzi (T. cruzi), the causative agent for Chagas disease. In this study, we investigate the speciation of these compounds under physiological conditions as well as the antiproliferative effects on the bacterium M. smeg. We find that the complexes are more stable the less H2O is present, and that the stability increases in lipid-like environments. Only one heteroleptic complex and two homoleptic complexes were found to show similar antiproliferative effects on M. smeg as reported for T. cruzi so the responses generally observed by M.smeg. is less than observed by the pathogen. In summary, we find that M. smeg is more sensitive to the detailed structure of the V-complex but overall these complexes are less effective against M. smeg compared to T. cruzi.
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Chiarelli R, Martino C, Scudiero R, Geraci F. Vanadium Modulates Proteolytic Activities and MMP-14-Like Levels during Paracentrotus lividus Embryogenesis. Int J Mol Sci 2022; 23. [PMID: 36430713 DOI: 10.3390/ijms232214238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/09/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
The increasing industrial use of vanadium (V), as well as its recent medical use in various pathologies has intensified its environmental release, making it an emerging pollutant. The sea urchin embryo has long been used to study the effects induced by metals, including V. In this study we used an integrated approach that correlates the biological effects on embryo development with proteolytic activities of gelatinases that could better reflect any metal-induced imbalances. V-exposure caused morphological/morphometric aberrations, mainly concerning the correct distribution of embryonic cells, the development of the skeleton, and the embryo volume. Moreover, V induced a concentration change in all the gelatinases expressed during embryo development and a reduction in their total proteolytic activity. The presence of three MMP-like gelatinases (MMP-2, -9, and -14) was also demonstrated and their levels depended on V-concentration. In particular, the MMP-14-like protein modified its expression level during embryo development in a time- and dose-dependent manner. This enzyme also showed a specific localization on filopodia, suggesting that primary mesenchyme cells (PMCs) could be responsible for its synthesis. In conclusion, these results indicate that an integrated study among morphology/morphometry, proteolytic activity, and MMP-14 expression constitutes an important response profile to V-action.
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Papanikolaou MG, Simaioforidou AV, Drouza C, Tsipis AC, Miras HN, Keramidas AD, Louloudi M, Kabanos TA. A Combined Experimental and Theoretical Investigation of Oxidation Catalysis by cis-[V IV(O)(Cl/F)(N 4)] + Species Mimicking the Active Center of Metal-Enzymes. Inorg Chem 2022; 61:18434-18449. [PMID: 36357045 PMCID: PMC9682486 DOI: 10.1021/acs.inorgchem.2c02526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
![]()
Reaction
of VIVOCl2 with the nonplanar
tetradentate
N4 bis-quinoline ligands yielded four oxidovanadium(IV)
compounds of the general formula cis-[VIV(O)(Cl)(N4)]Cl. Sequential treatment of the two nonmethylated
N4 oxidovanadium(IV) compounds with KF and NaClO4 resulted in the isolation of the species with the general formula cis-[VIV(O)(F)(N4)]ClO4. In marked contrast, the methylated N4 oxidovanadium(IV)
derivatives are inert toward KF reaction due to steric hindrance,
as evidenced by EPR and theoretical calculations. The oxidovanadium(IV)
compounds were characterized by single-crystal X-ray structure analysis,
cw EPR spectroscopy, and magnetic susceptibility. The crystallographic
characterization showed that the vanadium compounds have a highly
distorted octahedral coordination environment and the d(VIV–F) = 1.834(1) Å is the shortest to be
reported for (oxido)(fluorido)vanadium(IV) compounds. The experimental
EPR parameters of the VIVO2+ species deviate
from the ones calculated by the empirical additivity relationship
and can be attributed to the axial donor atom trans to the oxido group
and the distorted VIV coordination environment. The vanadium
compounds act as catalysts toward alkane oxidation by aqueous H2O2 with moderate ΤΟΝ up to 293
and product yields of up to 29% (based on alkane); the vanadium(IV)
is oxidized to vanadium(V), and the ligands remain bound to the vanadium
atom during the catalysis, as determined by 51V and 1H NMR spectroscopies. The cw X-band EPR studies proved that
the mechanism of the catalytic reaction is through hydroxyl radicals.
The chloride substitution reaction in the cis-[VIV(O)(Cl)(N4)]+ species by fluoride and
the mechanism of the alkane oxidation were studied by DFT calculations. Highly distorted N4−oxidovanadium(IV), cis-[VIV(=O)(Cl/F)(N4)]+, compounds mimicking the distorted coordination environment of the
metal-ion in metal-enzymes’ active center catalyze oxidation
of alkanes. The structural distortion results in significant deviation
of the cw EPR parameters from the expected ones and equilibrium between
six- and five- coordinate species in solution. DFT studies show that
distortion, steric hindrance, and the coordinated halogen define the
catalytic mechanism of oxidation of alkanes by cis-[VIV(=O)(Cl/F)(N4)]+ compounds.
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Affiliation(s)
- Michael G. Papanikolaou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina45110, Greece
- Department of Chemistry, University of Cyprus, Nicosia1678, Cyprus
| | - Anastasia V. Simaioforidou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina45110, Greece
| | - Chryssoula Drouza
- Department of Agricultural Production, Biotechnology and Food Science, Cyprus University of Technology, 3036Limassol, Cyprus
| | - Athanassios C. Tsipis
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina45110, Greece
| | | | | | - Maria Louloudi
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina45110, Greece
| | - Themistoklis A. Kabanos
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina45110, Greece
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Aureliano M, Fraqueza G, Berrocal M, Cordoba-Granados JJ, Gumerova NI, Rompel A, Gutierrez-Merino C, Mata AM. Inhibition of SERCA and PMCA Ca(2+)-ATPase activities by polyoxotungstates. J Inorg Biochem 2022; 236:111952. [PMID: 36049257 DOI: 10.1016/j.jinorgbio.2022.111952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/20/2022] [Accepted: 07/27/2022] [Indexed: 12/15/2022]
Abstract
Plasma membrane calcium ATPases (PMCA) and sarco(endo) reticulum calcium ATPases (SERCA) are key proteins in the maintenance of calcium homeostasis. Herein, we compare for the first time the inhibition of SERCA and PMCA calcium pumps by several polyoxotungstates (POTs), namely by Wells-Dawson phosphotungstate anions [P2W18O62]6- (intact, {P2W18}), [P2W17O61]10- (monolacunary, {P2W17}), [P2W15O56]12- (trilacunary, {P2W15}), [H2P2W12O48]12- (hexalacunary, {P2W12}), [H3P2W15V3O62]6- (trivanadium-substituted, {P2W15V3}) and by Preyssler-type anion [NaP5W30O110]14- ({P5W30}). The speciation in the solutions of tested POTs was investigated by 31P and 51V NMR spectroscopy. The tested POTs inhibited SERCA Ca2+-ATPase activity, whereby the Preyssler POT showed the strongest effect, with an IC50 value of 0.37 μM. For {P2W17} and {P2W15V3} higher IC50 values were determined: 0.72 and 0.95 μM, respectively. The studied POTs showed to be more potent inhibitors of PMCA Ca2+-ATPase activity, with lower IC50 values for {P2W17}, {P5W30} and {P2W15V3}.
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Pedko A, Rubanovich E, Tshuva EY, Shurki A. Hydrolytically Stable and Cytotoxic [ONO N] 2Ti(IV)-Type Octahedral Complexes. Inorg Chem 2022; 61:17653-17661. [DOI: 10.1021/acs.inorgchem.2c02737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anastasia Pedko
- Institute of Chemistry, Edmond J Safra Campus, The Hebrew University of Jerusalem, Jerusalem9190401, Israel
| | - Eden Rubanovich
- Institute for Drug Research, School of Pharmacy, Ein Kerem Campus, The Hebrew University of Jerusalem, Jerusalem9112001, Israel
| | - Edit Y. Tshuva
- Institute of Chemistry, Edmond J Safra Campus, The Hebrew University of Jerusalem, Jerusalem9190401, Israel
| | - Avital Shurki
- Institute for Drug Research, School of Pharmacy, Ein Kerem Campus, The Hebrew University of Jerusalem, Jerusalem9112001, Israel
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38
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Xiao H, Hao Y, Li X, Xu P, Huang M, Zheng S. A Water‐Soluble Antimony‐Rich Polyoxometalate with Broad‐Spectrum Antitumor Activities. Angew Chem Int Ed Engl 2022; 61:e202210019. [DOI: 10.1002/anie.202210019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Hui‐Ping Xiao
- Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated-Materials State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou, Fujian 350108 China
| | - Ya‐Shuai Hao
- College of Biological Science and Engineering 350108 Fuzhou, Fujian China
| | - Xin‐Xiong Li
- Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated-Materials State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou, Fujian 350108 China
| | - Peng Xu
- College of Biological Science and Engineering 350108 Fuzhou, Fujian China
| | - Ming‐Dong Huang
- College of Biological Science and Engineering 350108 Fuzhou, Fujian China
| | - Shou‐Tian Zheng
- Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated-Materials State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou, Fujian 350108 China
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39
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Ferraro G, Paolillo M, Sciortino G, Garribba E, Merlino A. Multiple and Variable Binding of Pharmacologically Active Bis(maltolato)oxidovanadium(IV) to Lysozyme. Inorg Chem 2022; 61:16458-16467. [PMID: 36205235 PMCID: PMC9579999 DOI: 10.1021/acs.inorgchem.2c02690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The interaction with
proteins of metal-based drugs plays a crucial
role in their transport, mechanism, and activity. For an active MLn complex, where L is the organic carrier,
various binding modes (covalent and non-covalent, single or multiple)
may occur and several metal moieties (M, ML, ML2, etc.)
may interact with proteins. In this study, we have evaluated the interaction
of [VIVO(malt)2] (bis(maltolato)oxidovanadium(IV)
or BMOV, where malt = maltolato, i.e., the common name for 3-hydroxy-2-methyl-4H-pyran-4-onato) with the model protein hen egg white lysozyme
(HEWL) by electrospray ionization mass spectrometry, electron paramagnetic
resonance, and X-ray crystallography. The multiple binding of different
V-containing isomers and enantiomers to different sites of HEWL is
observed. The data indicate both non-covalent binding of cis-[VO(malt)2(H2O)] and [VO(malt)(H2O)3]+ and covalent binding of [VO(H2O)3–4]2+ and cis-[VO(malt)2] and other V-containing fragments to the side chains of Glu35,
Asp48, Asn65, Asp87, and Asp119 and to the C-terminal carboxylate.
Our results suggest that the multiple and variable interactions of
potential VIVOL2 drugs with proteins can help
to better understand their solution chemistry and contribute to define
the molecular basis of the mechanism of action of these intriguing
molecules. The interaction of [VIVO(malt)2] (BMOV,
malt = maltolato) with hen egg white lysozyme (HEWL) reveals the multiple
binding of different V-containing isomers and enantiomers to different
sites and non-covalent and covalent binding of cis-[VO(malt)2(H2O)], [VO(malt)(H2O)3]+, [VO(H2O)3−4]2+, and cis-[VO(malt)2] to Glu,
Asp, and Asn residues.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Maddalena Paolillo
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Giuseppe Sciortino
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - Eugenio Garribba
- Dipartimento di Medicina, Chirurgia e Farmacia, Università di Sassari, Viale San Pietro, I-07100 Sassari, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126 Napoli, Italy
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40
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Chen K, Liu S, Zhu W, Yin P. Surface Engineering Promoted Insulin-Sensitizing Activities of Sub-Nanoscale Vanadate Clusters through Regulated Pharmacokinetics and Bioavailability. Small 2022; 18:e2203957. [PMID: 36058647 DOI: 10.1002/smll.202203957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/06/2022] [Indexed: 06/15/2023]
Abstract
The therapeutic application of vanadium compounds is plagued by their poor bioavailability and potential adverse effects. Herein, 1 nm polyoxovanadate (POV) clusters are functionalized with alkyl chains of various lengths and studied for the effect of surface engineering on their preclinical pharmacokinetics and typical insulin-sensitizing activity. The concentrations of surface engineered POVs in plasma, urine, and feces are monitored after a single administration to rats. The POVs exhibit a two-compartment profile of in vivo kinetics, and the surface engineering effect plays an important role in renal clearance of the POVs comparable to small molecules. POVs functionalized with long alkyl chains show much shorter elimination half time t1/2β and higher elimination fractions (50%) within 48 h than pristine POVs, suggesting favorable elimination kinetics to mitigate the possible side effects of vanadium. Meanwhile, long alkyl chain modification leads to a 76% increment of oral bioavailability in contrast to unmodified POVs. As suggested by glucose tolerance tests and sub-chronic toxicity tests, the above two factors contribute to the enhanced therapeutic efficacy of POVs while mitigating their adverse effects. The surface engineering protocol provides a feasible approach to the optimization of the bioavailability and pharmacokinetic properties of POVs for promoted insulin-sensitizing activities.
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Affiliation(s)
- Kun Chen
- State Key Laboratory of Luminescent Materials and Devices, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Shengqiu Liu
- State Key Laboratory of Luminescent Materials and Devices, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Wei Zhu
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
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41
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Liu Z, Wang W, Zhao Y, Jing Z, Wan R, Li H, Ma P, Niu J, Wang J. Synthesis, Structure, and Catalytic Activities of Two Multi-Rh-Decorated Polyoxometalates. Inorg Chem 2022; 61:15310-15314. [PMID: 36129305 DOI: 10.1021/acs.inorgchem.2c02220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two multi-Rh-incorporated polyoxometalates [NH2(CH3)2]10[Na4(H2O)8]H3[As4W42O142(OH)4(CH3COO)2Rh3(H2O)4]·13H2O·4[NH(CH3)2] (1) and [K4Na(H2O)6]KH10[As4W40O140Rh4(H2O)4]·34H2O (2) have been synthesized in acetate buffer solution. Polyanion 1a is built up atop of an acetate-modified rectangular framework [As4W42O142(OH)4(CH3COO)2]26-, while polyanion 2a contains a pure inorganic cryptand [As4W40O140]28-. All Rh atoms of these two compounds share the same hexa-coordinate distorted-octahedral geometry and are embedded into their cavities through As-Rh bonding with a bond length around 2.304(4)-2.436(5) Å. Besides, they not only represent structural novelty but also demonstrate controllable proton conduction properties. Catalysts 1 and 2 can catalyze cycloaddition of epoxides with CO2 in a solvent-free system in conjunction with 1-ethyl-1-methylpyrrolidinium bromide.
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Affiliation(s)
- Zhen Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Wenyu Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Yujie Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Zhen Jing
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Rong Wan
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Huafeng Li
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, Henan, P. R. China
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42
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Chang D, Li Y, Chen Y, Wang X, Zang D, Liu T. Polyoxometalate-based nanocomposites for antitumor and antibacterial applications. Nanoscale Adv 2022; 4:3689-3706. [PMID: 36133327 PMCID: PMC9470027 DOI: 10.1039/d2na00391k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/17/2022] [Indexed: 06/07/2023]
Abstract
Polyoxometalates (POMs), as emerging inorganic metal oxides, have been shown to have significant biological activity and great medicinal value. Nowadays, biologically active POM-based organic-inorganic hybrid materials have become the next generation of antibacterial and anticancer drugs because of their customizable molecular structures related to their highly enhanced antitumor activity and reduced toxicity to healthy cells. In this review, the current developed strategies with POM-based materials for the purpose of antibacterial and anticancer activities from different action principles inducing cell death and hyperpolarization, cell plasma membrane destruction, interference with bacterial respiratory chain and inhibiting bacterial growth are overviewed. Moreover, specific interactions between POM-based materials and biomolecules are highlighted for a better understanding of their antibacterial and anticancer mechanisms. POMs have great promise as next-generation antibacterial and anticancer drugs, and this review will provide a valuable systematic reference for the further development of POM-based nanomaterials.
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Affiliation(s)
- Dening Chang
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 250117 PR China
| | - Yanda Li
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 250117 PR China
| | - Yuxuan Chen
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 250117 PR China
| | - Xiaojing Wang
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 250117 PR China
| | - Dejin Zang
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 250117 PR China
| | - Teng Liu
- Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 250117 PR China
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43
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Lodh J, Roy S. Bio-inspired CO2 reduction reaction catalysis using soft-oxometalates. J Inorg Biochem 2022; 234:111903. [DOI: 10.1016/j.jinorgbio.2022.111903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 11/16/2022]
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44
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Iwai H, Kasamatsu T, Kuwajima S, Kikukawa Y, Hayashi Y. Hydrophobic interaction of V12 bowl-type dodecavanadates with alkyl ammonium cations. Polyhedron 2022; 224:115985. [DOI: 10.1016/j.poly.2022.115985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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45
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Xiao HP, Hao YS, Li XX, Xu P, Huang MD, Zheng ST. A Water‐Soluble Antimony‐Rich Polyoxometalate with Broad‐Spectrum Antitumor Activities. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | | | - Peng Xu
- Fuzhou University College of Chemistry CHINA
| | | | - Shou-Tian Zheng
- Fuzhou University Department of Chemistry #2 Xueyuan road 350002 Fuzhou CHINA
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46
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Aureliano M, Mitchell SG, Yin P. Editorial: Emerging polyoxometalates with biological, biomedical, and health applications. Front Chem 2022; 10:977317. [PMID: 36017169 PMCID: PMC9397140 DOI: 10.3389/fchem.2022.977317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Manuel Aureliano
- Faculdade de Ciências e Tecnologia, Campus de Gambelas, Universidade do Algarve, Faro, Portugal
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, Faro, Portugal
- *Correspondence: Manuel Aureliano, ; Scott G. Mitchell, ; Panchao Yin,
| | - Scott G. Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas-Universidad de Zaragoza, Zaragoza, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: Manuel Aureliano, ; Scott G. Mitchell, ; Panchao Yin,
| | - Panchao Yin
- South China University of Technology, Guangzhou, China
- *Correspondence: Manuel Aureliano, ; Scott G. Mitchell, ; Panchao Yin,
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Mclauchlan CC, Trent-ringler B, Crans DC. Pascoite Minerals and Potential Application of NMR Spectroscopy. Minerals 2022; 12:980. [DOI: 10.3390/min12080980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The 20 minerals encompassing the pascoite family of decavanadate isopolyanion-containing [V10O28]6− minerals include a few minerals, such as rakovanite, that have been described as containing a protonated decavanadate anion. Rakovanite was originally assigned the formula Na3[H3V10O28]•15H2O and now is redefined with an ideal formula (NH4)3Na3[V10O28]•12H2O. Nuclear magnetic resonance (NMR) and particularly 51V NMR spectroscopy is an informative method used to describe the protonation state and speciation in both solid and solution states of materials in the chemical and life sciences. However, 51V NMR spectroscopy has not yet been used experimentally to distinguish the protonation state of the decavanadate ion of leaching solutions and thus contributing to the discussion regarding the controversial protonation states of decavanadate ions in gunterite, rakovanite, and nashite. In contrast, the morphology and crystal structure for apatites, vanadinite, pyromorphite, and mimetite was related to 207Pb NMR chemical shifts, assisting in describing the local environments of these minerals. NMR spectroscopy could be a useful method if used in the future for decavanadate-containing minerals. Currently, partial reduction of two Pascoite minerals (caseyite and nashite) is proposed and accordingly could now effectively be investigated using a different magnetic resonance technique, EPR spectroscopy.
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Kostenkova K, Scalese G, Gambino D, Crans DC. Highlighting the roles of transition metals and speciation in chemical biology. Curr Opin Chem Biol 2022; 69:102155. [DOI: 10.1016/j.cbpa.2022.102155] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 12/13/2022]
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Guo Y, Wang C, Wang S, Chen F, Wang X, An Z, Yang L. Research on the Removal of Sodium from Vanadium Tailings by Calcification Roasting and NaOH Leaching. Sustainability 2022; 14:9051. [DOI: 10.3390/su14159051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Vanadium tailings are a common solid waste in the vanadium industry. As they are rich in Fe, vanadium tailings could be a potential raw material for the blast furnace. However, the presence of approximately 4% Na2O in vanadium tailings is a major impediment to its return to the blast furnace. A novel method for removing sodium from vanadium tailings by calcification roasting and subsequent NaOH leaching was proposed in this work. The method demonstrated that calcification roasting of vanadium tailings can not only volatilize a part of sodium but also facilitate the dissolution of sodium during the subsequent NaOH leaching process. The thermodynamic analysis and behaviors of vanadium tailings during calcification roasting were systematically investigated. The transformation of sodium-containing phases in vanadium tailings during calcification roasting was studied. Further, the promoting effect of calcification roasting on sodium leaching by NaOH was clarified. The total removal efficiency of sodium was 80.37% under optimal conditions, and the residue obtained after sodium removal can be used as a raw material in the blast furnace process for in-plant recycling.
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De Sousa-Coelho AL, Aureliano M, Fraqueza G, Serrão G, Gonçalves J, Sánchez-Lombardo I, Link W, Ferreira BI. Decavanadate and metformin-decavanadate effects in human melanoma cells. J Inorg Biochem 2022; 235:111915. [PMID: 35834898 DOI: 10.1016/j.jinorgbio.2022.111915] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/21/2022] [Accepted: 07/03/2022] [Indexed: 10/17/2022]
Abstract
Decavanadate is a polyoxometalate (POMs) that has shown extensive biological activities, including antidiabetic and anticancer activity. Importantly, vanadium-based compounds as well as antidiabetic biguanide drugs, such as metformin, have shown to exert therapeutic effects in melanoma. A combination of these agents, the metformin-decavanadate complex, was also recognized for its antidiabetic effects and recently described as a better treatment than the monotherapy with metformin enabling lower dosage in rodent models of diabetes. Herein, we compare the effects of decavanadate and metformin-decavanadate on Ca2+-ATPase activity in sarcoplasmic reticulum vesicles from rabbit skeletal muscles and on cell signaling events and viability in human melanoma cells. We show that unlike the decavanadate-mediated non-competitive mechanism, metformin-decavanadate inhibits Ca2+-ATPase by a mixed-type competitive-non-competitive inhibition with an IC50 value about 6 times higher (87 μM) than the previously described for decavanadate (15 μM). We also found that both decavanadate and metformin-decavanadate exert antiproliferative effects on melanoma cells at 10 times lower concentrations than monomeric vanadate. Western blot analysis revealed that both, decavanadate and metformin-decavanadate increased phosphorylation of extracellular signal-regulated kinase (ERK) and serine/threonine protein kinase AKT signaling proteins upon 24 h drug exposure, suggesting that the anti-proliferative activities of these compounds act independent of growth-factor signaling pathways.
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Affiliation(s)
- Ana Luísa De Sousa-Coelho
- Algarve Biomedical Center Research Institute (ABC-RI), Universidade do Algarve, Faro, Portugal; Algarve Biomedical Center (ABC), Faro, Portugal; Escola Superior de Saúde (ESS), Universidade do Algarve, Faro, Portugal.
| | - Manuel Aureliano
- Faculdade de Ciências e Tecnologia (FCT), Universidade do Algarve, Faro, Portugal; Centro de Ciências do Mar (CCMar), Universidade do Algarve, Faro, Portugal.
| | - Gil Fraqueza
- Centro de Ciências do Mar (CCMar), Universidade do Algarve, Faro, Portugal; Instituto Superior de Engenharia (ISE), Universidade do Algarve, Faro, Portugal
| | - Gisela Serrão
- Algarve Biomedical Center Research Institute (ABC-RI), Universidade do Algarve, Faro, Portugal
| | - João Gonçalves
- Faculdade de Medicina e Ciências Biomédicas, Universidade do Algarve, Faro, Portugal
| | - Irma Sánchez-Lombardo
- División Académica de Ciencias Básicas, Universidad Juárez Autónoma de Tabasco, Cunduacán, Mexico
| | - Wolfgang Link
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM). Madrid, Spain
| | - Bibiana I Ferreira
- Algarve Biomedical Center Research Institute (ABC-RI), Universidade do Algarve, Faro, Portugal; Algarve Biomedical Center (ABC), Faro, Portugal; Faculdade de Medicina e Ciências Biomédicas, Universidade do Algarve, Faro, Portugal
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