1
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Zhang TT, Zhao ZQ, Tian G, Cui XB. Two new polyoxoniobosilicate-based compounds: Syntheses, structures, characterizations and their catalytic properties for epoxidation and water oxidation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2
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Saikia G, Talukdar H, Ahmed K, Gour NK, Islam NS. Tantalum( v) peroxido complexes as phosphatase inhibitors: a comparative study vis-a-vis peroxidovanadates. NEW J CHEM 2021. [DOI: 10.1039/d1nj01005k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Peroxido Ta(v) complexes are found to be more effective as inhibitors of wheat thylakoid acid phosphatase vis-à-vis their V containing analogues. In addition, these compounds showed unique resistance towards degradation in the presence of catalase.
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Affiliation(s)
- Gangutri Saikia
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784028
- India
| | - Hiya Talukdar
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784028
- India
| | - Kabirun Ahmed
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784028
- India
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3
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In Vitro Antifungal Activity and Mechanism of Ag 3PW 12O 40 Composites against Candida Species. Molecules 2020; 25:molecules25246012. [PMID: 33353184 PMCID: PMC7766586 DOI: 10.3390/molecules25246012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/27/2022] Open
Abstract
Fungal infections pose a serious threat to human health. Polyoxometalates (POMs) are metal–oxygen clusters with potential application in the control of microbial infections. Herein, the Ag3PW12O40 composites have been synthesized and verified by Fourier transform infrared (FT-IR) spectrum, transmission electron microscopy (TEM), scanning electron microscope (SEM), elemental analysis, and X-ray diffraction (XRD). The antifungal activities of Ag3PW12O40 were screened in 19 Candida species strains through the determination of minimum inhibitory concentration (MIC) by the microdilution checkerboard technique. The minimum inhibitory concentration (MIC50) values of Ag3PW12O40 are 2~32 μg/mL to the Candida species. The MIC80 value of Ag3PW12O40 to resistant clinical isolates C. albicans HL963 is 8 μg/mL, which is lower than the positive control, fluconazole (FLC). The mechanism against C. albicans HL963 results show that Ag3PW12O40 can decrease the ergosterol content. The expressions of ERG1, ERG7, and ERG11, which impact on the synthesis of ergosterol, are all prominently upregulated by Ag3PW12O40. It indicates that Ag3PW12O40 is a candidate in the development of new antifungal agents.
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4
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Shmakova AA, Sukhikh TS, Volchek VV, Yanshole V, Stass DV, Filatov EY, Glebov EM, Abramov PA, Sokolov MN. Niobium uptake by {P2W12} polyoxoanion with [NbO(C2O4)2(H2O)2]− as Nb source. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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5
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Qasim HM, Ayass WW, Donfack P, Mougharbel AS, Bhattacharya S, Nisar T, Balster T, Solé-Daura A, Römer I, Goura J, Materny A, Wagner V, Poblet JM, Bassil BS, Kortz U. Peroxo-Cerium(IV)-Containing Polyoxometalates: [CeIV6(O2)9(GeW10O37)3]24–, a Recyclable Homogeneous Oxidation Catalyst. Inorg Chem 2019; 58:11300-11307. [DOI: 10.1021/acs.inorgchem.9b01164] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hafiz M. Qasim
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
| | - Wassim W. Ayass
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
| | - Patrice Donfack
- Jacobs University, Department of Physics and Earth Sciences, Campus Ring 1, 28759 Bremen, Germany
| | - Ali S. Mougharbel
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
| | - Saurav Bhattacharya
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
| | - Talha Nisar
- Jacobs University, Department of Physics and Earth Sciences, Campus Ring 1, 28759 Bremen, Germany
| | - Torsten Balster
- Jacobs University, Department of Physics and Earth Sciences, Campus Ring 1, 28759 Bremen, Germany
| | - Albert Solé-Daura
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, c/Marcel·lí Domingo 1, 43007 Tarragona, Spain
| | - Isabella Römer
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
| | - Joydeb Goura
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
| | - Arnulf Materny
- Jacobs University, Department of Physics and Earth Sciences, Campus Ring 1, 28759 Bremen, Germany
| | - Veit Wagner
- Jacobs University, Department of Physics and Earth Sciences, Campus Ring 1, 28759 Bremen, Germany
| | - Josep M. Poblet
- Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, c/Marcel·lí Domingo 1, 43007 Tarragona, Spain
| | - Bassem S. Bassil
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
- University of Balamand, Faculty of Arts and Sciences, P.O. Box 100, 1300 Tripoli, Lebanon
| | - Ulrich Kortz
- Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
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6
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Shmakova AA, Romanova TE, Kompankov NB, Abramov PA, Sokolov MN. Trapping of Nb
V
by {XW
9
O
33
}
9–
(X = As, Sb): Formation of New Sandwich‐Type POM Complexes and Their Solution Behavior. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexandra A. Shmakova
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Akad. Lavrentiev Ave. 630090 Novosibirsk Russia
| | - Tamara E. Romanova
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Akad. Lavrentiev Ave. 630090 Novosibirsk Russia
| | - Nikolay B. Kompankov
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Akad. Lavrentiev Ave. 630090 Novosibirsk Russia
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Akad. Lavrentiev Ave. 630090 Novosibirsk Russia
- Novosibirsk State University 2 Pirogova Str. 630090 Novosibirsk Russia
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Akad. Lavrentiev Ave. 630090 Novosibirsk Russia
- Novosibirsk State University 2 Pirogova Str. 630090 Novosibirsk Russia
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7
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Shmakova AA, Volchek VV, Yanshole V, Kompankov NB, Martin NP, Nyman M, Abramov PA, Sokolov MN. Niobium uptake by a [P8W48O184]40−macrocyclic polyanion. NEW J CHEM 2019. [DOI: 10.1039/c9nj01907c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Incorporation of Nb into the [P8W48O184]40−anionic macrocyclic cavitand leads to formation of new Nb–W POMs. Inclusion of up to five {NbO(H2O)}3+groups was observed. Solution speciation of the Nb-encapsulating macrocycles was studied by HPLC-ICP-AES and SAXS.
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Affiliation(s)
| | | | - Vadim Yanshole
- Novosibirsk State University
- Novosibirsk
- Russia
- International Tomography Center
- Novosibirsk
| | | | | | - May Nyman
- Department of Chemistry Oregon State University
- Oregon 97331-4003
- USA
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
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8
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Application of Heteronuclear NMR Spectroscopy to Bioinorganic and Medicinal Chemistry ☆. REFERENCE MODULE IN CHEMISTRY, MOLECULAR SCIENCES AND CHEMICAL ENGINEERING 2018. [PMCID: PMC7157447 DOI: 10.1016/b978-0-12-409547-2.10947-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Saikia G, Gogoi SR, Boruah JJ, Ram BM, Begum P, Ahmed K, Sharma M, Ramakrishna G, Ramasarma T, Islam NS. Peroxo Compounds of Vanadium(V) and Niobium(V) as Potent Inhibitors of Calcineurin Activity towards RII-Phosphopeptide. ChemistrySelect 2017. [DOI: 10.1002/slct.201700935] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Gangutri Saikia
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
| | - Sandhya Rani Gogoi
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
| | - Jeena Jyoti Boruah
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
| | - Babul Moni Ram
- Department of molecular and cellular medicine; Institute of liver and biliary sciences; D1 Vasant Kunj New Delhi 110070 India
| | - Pakiza Begum
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
| | - Kabirun Ahmed
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
| | - Mitu Sharma
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
| | - Gayatri Ramakrishna
- Department of molecular and cellular medicine; Institute of liver and biliary sciences; D1 Vasant Kunj New Delhi 110070 India
| | | | - Nashreen S. Islam
- Dept. of Chemical Sciences; Tezpur University, Napaam; Tezpur-784028, Assam India
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10
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Niobium(V) peroxo α-amino acid complexes: Synthesis, stability and kinetics of inhibition of acid phosphatase activity. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Huang P, Wang XL, He DQ, Wu HY, Qin C, Du M, Lai C, Su ZM. Two nanoscale Nb containing polyoxometalates based on {P2W15Nb3O62} clusters and chromium cations. Dalton Trans 2017; 46:13345-13348. [DOI: 10.1039/c7dt02737k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We have introduced mixed-addenda Nb/W polyoxometalates as a new class of materials for lithium-ion batteries and demonstrated their capability as anode materials with good cycling stability.
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Affiliation(s)
- Peng Huang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Department of Chemistry
- School of Chemistry and Material Science
- Jiangsu Normal University
- Xuzhou
| | - Xin-Long Wang
- Institute of Functional Material Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun
- People's Republic of China
| | - De-Qing He
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Department of Chemistry
- School of Chemistry and Material Science
- Jiangsu Normal University
- Xuzhou
| | - Hai-Yang Wu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Department of Chemistry
- School of Chemistry and Material Science
- Jiangsu Normal University
- Xuzhou
| | - Chao Qin
- Institute of Functional Material Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun
- People's Republic of China
| | - Meng Du
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Department of Chemistry
- School of Chemistry and Material Science
- Jiangsu Normal University
- Xuzhou
| | - Chao Lai
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Department of Chemistry
- School of Chemistry and Material Science
- Jiangsu Normal University
- Xuzhou
| | - Zhong-Min Su
- Institute of Functional Material Chemistry
- National & Local United Engineering Lab for Power Battery
- Northeast Normal University
- Changchun
- People's Republic of China
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12
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Abramov PA, Shmakova AA, Haouas M, Fink G, Cadot E, Sokolov MN. Self-assembly of [PNbxW12−xO40]n− Keggin anions – a simple way to mixed Nb–W polyoxometalates. NEW J CHEM 2017. [DOI: 10.1039/c6nj02637k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper summarizes preparations of mixed phosphoniobotungstates [PNbxW12−xO40](3+x)− (x = 1–3) based on two different ways: incorporation of Nb into pre-existing lacunary-type phosphotungstates and self-assembly reactions.
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Affiliation(s)
- Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Alexandra A. Shmakova
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Mohamed Haouas
- Lavoisier Institute of Versailles
- UMR CNRS 8180
- University of Versailles Saint-Quentin en Yvelines
- 78035 Versailles
- France
| | - Gerhard Fink
- Lavoisier Institute of Versailles
- UMR CNRS 8180
- University of Versailles Saint-Quentin en Yvelines
- 78035 Versailles
- France
| | - Emmanuel Cadot
- Lavoisier Institute of Versailles
- UMR CNRS 8180
- University of Versailles Saint-Quentin en Yvelines
- 78035 Versailles
- France
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
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13
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Shigeta S, Mori S, Watanabe J, Baba M, Khenkin AM, Hill CL, Schinazi RF. In vitro Antimyxovirus and Anti-Human Immunodeficiency Virus Activities of Polyoxometalates. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029500600206] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Polyoxometalates have been shown to inhibit the replication of retro-, toga-, paramyxo- and herpesviruses. The primary mechanism of the anti-human immunodeficiency virus type 1 (HIV-1) action of polyoxometalates seems to be inhibition of binding of virus to cells and inhibition of syncytium formation. Since myxoviruses and HIV-1 are known to interact with the cytoplasmic membrane by adsorption and penetration of virus and by fusion of infected and uninfected cells, 25 polyoxometalates were examined for anti-ortho-, anti-paramyxovirus and anti-HIV-1 activity in vitro. Of the 25 compounds evaluated, 24 showed antiviral effects against influenza virus A, 11 showed activity against respiratory syncytial virus, six showed activity against measles virus, and 23 were considered effective against HIV-1 at a lower concentration than that producing cytotoxicity. Four polyoxotungstates which had potent inhibitory effects were examined for inhibitory effects against additional ortho- and paramyxoviruses, and proved to have a broad spectrum of antimyxoviral activity. HS-058, the Keggin sandwich compound K10Fe4(H2O)2(PW9O34)2·nH2O, was inhibitory against influenza viruses A and B, respiratory syncytial virus, measles virus, and parainfluenza virus 2, with median effective concentrations of 1.4, 21.8, 7.4, 0.8 and 0.32 μ,M, respectively. However, HS-058 had no effect on parainfluenza virus 3 or mumps virus. The median cytotoxic concentration of HS-058 for Madin-Darby canine kidney (MDCK) and HEp-2 cells was more than 200 μM and that for HMV-2 and Vero cells was about 50 μM. When HS-058 was added at different times after influenza A and respiratory syncytial virus infection, it inhibited binding of the latter but not of the former to cells. However, at higher concentrations, HS-054 and HS-058 inhibited haemolysis of chick erythrocytes by influenza virus and syncytium formation involving respiratory syncytial virus-infected cells and uninfected cells. Four times the median effective antiviral concentration of HS-058 completely inhibited the growth of influenza virus A in MDCK cells when compound was added before virus adsorption. Furthermore, when HS-058 was added after virus adsorption, it inhibited the yield of virus in MDCK cells infected at low but not at high multiplicity of infection.
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Affiliation(s)
- S. Shigeta
- Department of Microbiology, Fukushima Medical College, Fukushima, 960-12, Japan
| | - S. Mori
- Department of Microbiology, Fukushima Medical College, Fukushima, 960-12, Japan
| | - J. Watanabe
- Department of Microbiology, Fukushima Medical College, Fukushima, 960-12, Japan
| | - M. Baba
- Department of Microbiology, Fukushima Medical College, Fukushima, 960-12, Japan
| | - A. M. Khenkin
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - C. L. Hill
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - R. F. Schinazi
- Department of Pediatrics, Emory University, Atlanta, GA 30322, USA
- Veterans Affairs Medical Center, Medical Research 151, 1670 Clairmont Road, Decatur, GA 30033, USA
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14
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Judd DA, Schinazi RF, Hill CL. Relationship of the Molecular Size and Charge Density of Polyoxometalates to Their anti-gp120-CD4-binding Activity. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029400500609] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The ability of several classes of polyoxometalates to inhibit the interaction between HIV-1 gp120 and CD4 was assessed. No clear relationship was found between binding inhibition and the negative charge density on the anion portion of the polyoxometalate. However, a weak correlation was found with molecular size. There was a molecular weight threshold of 3800 g mol-1 above which no significant increase in potency was gained; the binding inhibition was nearly quantitative above this molecular weight.
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Affiliation(s)
- D. A. Judd
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - R. F. Schinazi
- Department of Pediatrics, Emory University, Atlanta, GA 30322, USA
- Veterans Affairs Medical Centre, Decatur, GA 30033, USA
| | - C. L. Hill
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
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15
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Huffman JH, Sidwell RW, Barnard DL, Morrison A, Otto MJ, Hill CL, Schinazi RF. Influenza Virus-Inhibitory Effects of a Series of Germanium- and Silicon-Centred Polyoxometalates. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029700800201] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A series of germanium- or silicon-centred heteropolytungstates (polyoxometalates) with the Barrel, Keggin or double Keggin structure were evaluated in vitro for their effects against influenza A (IV-A) and B (IV-B) viruses. Their 50% effective concentrations (EC50) against recent isolates of IV-A (H1N1) and IV-B ranged from 0.1 to 7.8 μM against IV-A (H3N2), the EC50 concentrations were often 10-fold higher. Recent clinical isolates of IV-A were generally more susceptible to these antiviral effects than older, laboratory-adapted strains. These experiments used inhibition of viral CPE in MDCK cells as determined microscopically and by Neutral Red (NR) uptake. Virus yield reduction studies indicated the 90% effective concentrations (EC90) ranged from 0.2 to 32 μM against these viruses. Cytotoxic or cell inhibitory concentrations (CC50), determined by NR uptake and total cell count, ranged from 38 to 189 μM, indicating high selective indices for some of these compounds. Altering time of addition of an active compound relative to infecting cells with IV-A (HINl) showed greatest efficacy when given early in viral replication. Five of the most active polyoxometalates were evaluated against IV-B infections in mice using intraperitoneal treatment beginning 4 h prior to virus exposure. Two of the compounds, one with the Barrel structure and the other with a double Keggin structure, were particularly inhibitory, preventing deaths, reducing arterial oxygen decline and lowering lung consolidation. Lung virus titres were reduced by a maximum of 0.7 log10. Therapy initiated 8 h post-virus exposure was not effective against this in vivo infection.
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Affiliation(s)
- JH Huffman
- Institute for Antiviral Research, Utah State University, Logan, UT 84322-5600, USA
| | - RW Sidwell
- Institute for Antiviral Research, Utah State University, Logan, UT 84322-5600, USA
| | - DL Barnard
- Institute for Antiviral Research, Utah State University, Logan, UT 84322-5600, USA
| | - A Morrison
- Institute for Antiviral Research, Utah State University, Logan, UT 84322-5600, USA
| | - MJ Otto
- Avid Therapeutics, Inc., Philadelphia, PA 19104, USA
| | - CL Hill
- Department of Chemistry, Emory University, Atlanta, GA 30322, USA
| | - RF Schinazi
- Veterans Affairs Medical Center and Department of Pediatrics, Emory University, Decatur, GA 30033, USA
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16
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Wang H, Liang Z, Wang Y, Zhang D, Ma P, Wang J, Niu J. Insight into the reactivity of in situ formed {(NbO2)3SiW9}: synthesis, structure, and solution properties of a trimeric polytungstosilicate trapping a {MnNb9} core. Dalton Trans 2016; 45:15236-15241. [PMID: 27711713 DOI: 10.1039/c6dt02252a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The first example of the trimeric polyoxometalate cluster, Cs10Na3[(SiW9Nb3O38)3MnO3(H2O)3]·18H2O (1a), has been synthesized using an in situ synthetic strategy and thoroughly characterized.
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Affiliation(s)
- Haiying Wang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Zhijie Liang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Yaya Wang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Dongdi Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
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17
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Zhang D, Zhang C, Ma P, Bassil BS, Al-Oweini R, Kortz U, Wang J, Niu J. Two new members of the niobium-substituted polytungstophosphate family based on hexalacunary [H2P2W12O48]12− building blocks. Inorg Chem Front 2015. [DOI: 10.1039/c4qi00169a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein we present two structurally novel nanoscale clusters [{Nb6(O2)4P2W12O57}2]20− (1) and [{P2W12Nb7O63(H2O)2}4{Nb4O4(OH)6}]30− (2) formed by controlling the reaction parameters.
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Affiliation(s)
- Dongdi Zhang
- Key Laboratory of Polyoxometalate Chemistry of Henan Province
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Chao Zhang
- Collaborative Innovation Center of Chemistry for Energy Materials
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Pengtao Ma
- Key Laboratory of Polyoxometalate Chemistry of Henan Province
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Bassem S. Bassil
- School of Engineering and Science
- Jacobs University
- 28725 Bremen
- Germany
- Department of Chemistry
| | - Rami Al-Oweini
- School of Engineering and Science
- Jacobs University
- 28725 Bremen
- Germany
- Department of Chemistry
| | - Ulrich Kortz
- School of Engineering and Science
- Jacobs University
- 28725 Bremen
- Germany
| | - Jingping Wang
- Key Laboratory of Polyoxometalate Chemistry of Henan Province
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
| | - Jingyang Niu
- Key Laboratory of Polyoxometalate Chemistry of Henan Province
- Institute of Molecular and Crystal Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
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Wu HL, Zhang ZM, Li YG, Wang XL, Wang EB. Recent progress in polyoxoniobates decorated and stabilized via transition metal cations or clusters. CrystEngComm 2015. [DOI: 10.1039/c5ce00909j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang D, Liang Z, Xie S, Ma P, Zhang C, Wang J, Niu J. A New Nb28 Cluster Based on Tungstophosphate, [{Nb4O6(OH)4}{Nb6P2W12O61}4]36–. Inorg Chem 2014; 53:9917-22. [DOI: 10.1021/ic501575x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Dongdi Zhang
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
| | - Zhijie Liang
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
| | - Songqiang Xie
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
| | - Pengtao Ma
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
| | - Chao Zhang
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
| | - Jingping Wang
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
| | - Jingyang Niu
- Key Laboratory of
Polyoxometalate Chemistry of Henan Province, College of Chemistry
and Chemical Engineering and ‡Pharmaceutical College, Henan University, Kaifeng 475004, P. R. China
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Wang J, Qu X, Qi Y, Li J, Song X, Li L, Yin D, Xu K, Li J. Pharmacokinetics of anti-HBV polyoxometalate in rats. PLoS One 2014; 9:e98292. [PMID: 24921932 PMCID: PMC4055585 DOI: 10.1371/journal.pone.0098292] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 04/30/2014] [Indexed: 01/17/2023] Open
Abstract
Polyoxometalates are non-nucleoside analogs that have been proven to exhibit broad-spectrum antiviral activity. In particular, Cs2K4Na[SiW9Nb3O40].H2O 1 shows low toxicity and high activity against HBV. The preclinical pharmacokinetics of Compound 1 in rats were characterized by establishing and applying inductively coupled plasma-mass spectrometry method to determine the concentration of W in plasma, urine, feces, bile and organ samples. The quantitative ICP-MS method demonstrated good sensitivity and application in the pharmacokinetics study of polyoxometalates. The pharmacokinetic behavior of Compound 1 after intravenous or oral administration fit a two-compartment model. Tmax ranges from 0.1 h to 3 h and the T1/2 of Compound 1 is between 20 h and 30 h. The absolute bioavailability of Compound 1 at 45, 180 and 720 mg/kg groups were 23.68%, 14.67% and 11.93%, respectively. The rates of plasma protein binding of Compound 1 at 9, 18 and 36 mg/ml of Compound 1 are 62.13±9.41%, 71.20±24.98% and 49.00±25.59%, respectively. Compound 1 was widely distributed throughout the body, and high levels of compound 1 were found in the kidney and liver. The level of Compound 1 in excretion was lower: 30% for urine, 0.28% for feces and 0.42% for bile, respectively. For elaborate pharmacokinetic characteristics to be fully understood, the metabolism of Compound 1 needs to be studied further.
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Affiliation(s)
- Juan Wang
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Xiaofeng Qu
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Yanfei Qi
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Jinhua Li
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Xiuling Song
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Li Li
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Dehui Yin
- School of Public Health, Jilin University, Changchun, Jilin, China
| | - Kun Xu
- School of Public Health, Jilin University, Changchun, Jilin, China
- * E-mail: (JL); (KX)
| | - Juan Li
- School of Public Health, Jilin University, Changchun, Jilin, China
- * E-mail: (JL); (KX)
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Maiorov VG, Nikolaev AI, Krivovichev SV, Kopkov VK, Rys’kina MP, Zhitova ES. Some properties of potassium hexaniobates. RUSS J INORG CHEM+ 2014. [DOI: 10.1134/s0036023614030152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Shen JQ, Wu Q, Zhang Y, Zhang ZM, Li YG, Lu Y, Wang EB. Unprecedented high-nuclear transition-metal-cluster-substituted heteropolyoxoniobates: synthesis by {V8 } ring insertion into the POM matrix and antitumor activities. Chemistry 2014; 20:2840-8. [PMID: 24590496 DOI: 10.1002/chem.201303995] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 11/30/2013] [Indexed: 11/06/2022]
Abstract
Reactions of hexaniobate with vanadate in the presence of Ni(2+) , Zn(2+) , or Cu(2+) have furnished three high-nuclear vanadium cluster-substituted heteropolyoxoniobates (HPNs): {Ni(en)3 }5 H{V(V) Nb8 V(IV) 8 O44 }⋅9 H2 O (1), (H2 en)Na2 [{Zn(en)2 (Hen)}{Zn(en)2 (H2 O)}2 {PNb8 V(IV) 8 O44 }]⋅11 H2 O (2), and Na{Cu(en)2 }3 {[Cu(en)2 ]2 [PNb8 V(IV) 8 O44 ]}⋅11 H2 O (3) (en=1,2-diaminoethane). Their structures have been determined and characterized by single-crystal X-ray diffraction analysis, thermogravimetric analysis (TGA), and elemental analysis. Structural analysis has revealed that compounds 1-3 contain similar {V8 }-substituted [X(V) Nb8 V(IV) 8 O44 ](11-) (X=P, V) clusters, obtained by inserting a {V8 } ring into tetravacant HPN [XNb8 O36 ](27-) . To the best of our knowledge, compounds 1-3 represent the first high-nuclear vanadium cluster-substituted HPNs, and compound 1 is the largest vanadoniobate cluster yet obtained in HPN chemistry. Nickel and zinc cations have been introduced into HPNs for the first time, which might promise a more diverse set of structures in this family. Antitumor studies have indicated that compounds 1 and 2 exhibit high activity against human gastric cancer SGC-7901 cells, SC-1680 cells, and MG-63 cells.
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Affiliation(s)
- Jian-Qiang Shen
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Renmin Street No. 5268, Changchun, Jilin, 130024 (P.R. China)
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de Souza e Silva JM, Pastorello M, Kobarg J, Cardoso MB, Mazali IO. Selective Synthesis of Silver Nanoparticles onto Potassium Hexaniobate: Structural Organisation with Bactericidal Properties. Chemphyschem 2013; 14:4075-83. [DOI: 10.1002/cphc.201300855] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Indexed: 01/07/2023]
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Dianat S, Tangestaninejad S, Yadollahi B, Bordbar AK, Moghadam M, Mirkhani V, Mohammadpoor-Baltork I. Stability investigation of some heteropolyoxotungstate and heteropolyoxomolybdate salts in buffer solutions. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2012.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ruhlmann L, Schaming D, Ahmed I, Courville A, Canny J, Thouvenot R. Spectroscopic and Electrochemical Study of the Interconversion and Decomplexation of Cobalt(II) Sandwich Polyoxometalates Based on a Dawson-Type Anion. Inorg Chem 2012; 51:8202-11. [DOI: 10.1021/ic3007603] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laurent Ruhlmann
- Laboratoire de Chimie Physique
(UMR CNRS 8000), Bâtiment 349, Université Paris-Sud 11, 91405 Orsay Cedex, France
- Laboratoire d’Electrochimie
et de Chimie-Physique du Corps
Solide (UMR CNRS 7177), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg, France
| | - Delphine Schaming
- Laboratoire de Chimie Physique
(UMR CNRS 8000), Bâtiment 349, Université Paris-Sud 11, 91405 Orsay Cedex, France
| | - Iftikhar Ahmed
- Laboratoire de Chimie Physique
(UMR CNRS 8000), Bâtiment 349, Université Paris-Sud 11, 91405 Orsay Cedex, France
- Laboratoire d’Electrochimie
et de Chimie-Physique du Corps
Solide (UMR CNRS 7177), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg, France
| | - Aimeric Courville
- Laboratoire de Chimie Physique
(UMR CNRS 8000), Bâtiment 349, Université Paris-Sud 11, 91405 Orsay Cedex, France
| | - Jacqueline Canny
- Institut Parisien de Chimie Moléculaire
(UMR CNRS 7201), Case courrier 42, Université Pierre et Marie Curie, Univ Paris 06, 4 Place Jussieu,
75252 Paris Cedex, France
| | - René Thouvenot
- Institut Parisien de Chimie Moléculaire
(UMR CNRS 7201), Case courrier 42, Université Pierre et Marie Curie, Univ Paris 06, 4 Place Jussieu,
75252 Paris Cedex, France
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Farrer NJ, Salassa L, Sadler PJ. Photoactivated chemotherapy (PACT): the potential of excited-state d-block metals in medicine. Dalton Trans 2009:10690-701. [PMID: 20023896 PMCID: PMC2933824 DOI: 10.1039/b917753a] [Citation(s) in RCA: 374] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The fields of phototherapy and of inorganic chemotherapy both have long histories. Inorganic photoactivated chemotherapy (PACT) offers both temporal and spatial control over drug activation and has remarkable potential for the treatment of cancer. Following photoexcitation, a number of different decay pathways (both photophysical and photochemical) are available to a metal complex. These pathways can result in radiative energy release, loss of ligands or transfer of energy to another species, such as triplet oxygen. We discuss the features which need to be considered when developing a metal-based anticancer drug, and the common mechanisms by which the current complexes are believed to operate. We then provide a comprehensive overview of PACT developments for complexes of the different d-block metals for the treatment of cancer, detailing the more established areas concerning Ti, V, Cr, Mn, Re, Fe, Ru, Os, Co, Rh, Pt, and Cu and also highlighting areas where there is potential for greater exploration. Nanoparticles (Ag, Au) and quantum dots (Cd) are also discussed for their photothermal destructive potential. We also discuss the potential held in particular by mixed-metal systems and Ru complexes.
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Affiliation(s)
- Nicola J. Farrer
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
| | - Luca Salassa
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
| | - Peter J. Sadler
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
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Ronconi L, Sadler PJ. Applications of heteronuclear NMR spectroscopy in biological and medicinal inorganic chemistry. Coord Chem Rev 2008; 252:2239-2277. [PMID: 32226090 PMCID: PMC7094630 DOI: 10.1016/j.ccr.2008.01.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Accepted: 01/15/2008] [Indexed: 11/30/2022]
Abstract
There is a wide range of potential applications of inorganic compounds, and metal coordination complexes in particular, in medicine but progress is hampered by a lack of methods to study their speciation. The biological activity of metal complexes is determined by the metal itself, its oxidation state, the types and number of coordinated ligands and their strength of binding, the geometry of the complex, redox potential and ligand exchange rates. For organic drugs a variety of readily observed spin I = 1/2 nuclei can be used (1H, 13C, 15N, 19F, 31P), but only a few metals fall into this category. Most are quadrupolar nuclei giving rise to broad lines with low detection sensitivity (for biological systems). However we show that, in some cases, heteronuclear NMR studies can provide new insights into the biological and medicinal chemistry of a range of elements and these data will stimulate further advances in this area.
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Key Words
- ADP, adenosine diphosphate
- AES, atomic emission spectroscopy
- AMP, adenosine monophosphate
- ATP, adenosine triphosphate
- BNCT, boron neutron capture therapy
- BPG, 2,3-bisphosphoglycerate
- BSA, bovine serum albumin
- BSH, sodium borocaptate
- Bioinorganic chemistry
- Biological systems
- DNA, deoxyribonucleic acid
- EDTA-N4, ethylenediaminetetraacetamide
- EFG, electric field gradient
- GMP, guanosine monophosphate
- HMQC, heteronuclear multiple quantum correlation
- Heteronuclear NMR spectroscopy
- Im, imidazole
- In, indazole
- MQF, multiple quantum filtered
- MRI, magnetic resonance imaging
- Medicinal inorganic chemistry
- Metallopharmaceuticals
- NOE, nuclear Overhauser effect
- PET, positron emission tomography
- Quadrupolar nuclei
- RBC, red blood cell
- RNA, ribonucleic acid
- SDS, sodium dodecyl sulfate
- rRNA, ribosomal ribonucleic acid
- tRNA, transfer ribonucleic acid
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Affiliation(s)
- Luca Ronconi
- School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Peter J Sadler
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
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Cartuyvels E, Van Hecke K, Van Meervelt L, Görller-Walrand C, Parac-Vogt TN. Structural characterization and reactivity of gamma-octamolybdate functionalized by proline. J Inorg Biochem 2008; 102:1589-98. [PMID: 18374986 DOI: 10.1016/j.jinorgbio.2008.02.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 02/12/2008] [Accepted: 02/13/2008] [Indexed: 10/22/2022]
Abstract
The reaction of molybdate and dl-proline at pH 3.4 results in the formation of a Na(4)[Mo(8)O(26)(proO)(2)] x 22H(2)O complex (pro=proline) in which two proline ligands are attached to molybdenum(VI) ions via monodentate coordination of the carboxylate groups. The structure of the complex was determined by single crystal X-ray diffraction and by combination of (1)H, (13)C and (95)Mo NMR spectroscopy techniques in solution. The structure of the complex is strongly dependent on the pH. At native pH 3.4 the octamolybdate-type structure seems to be present in solution, but the increase of pH to 5.8 resulted in a rearrangement of the structure to a heptamolybdate-type structure. At physiological pH, the polyoxometalate framework was completely dissociated into the monomeric MoO(4)(2-) unit. The reactivity of the Na(4)[Mo(8)O(26)(proO)(2)] x 22H(2)O towards the hydrolysis of ATP was tested at different pH values. While in solution at pH 3.4 the hydrolysis proceeded to yield AMP (adenosine monophosphate) and ADP (adenosine diphosphate) in nearly equal amounts, reaction mixture at pH 5.8 gave ADP as the only product of hydrolysis after 24h of reaction. At neutral pH, the hydrolysis of ATP was slower, but it proceeded to yield 75% of ADP after 48 h of reaction.
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Affiliation(s)
- Els Cartuyvels
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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Mitsui S, Ogata A, Yanagie H, Kasano H, Hisa T, Yamase T, Eriguchi M. Antitumor activity of polyoxomolybdate, [NH3Pri]6[Mo7O24].3H2O, against, human gastric cancer model. Biomed Pharmacother 2006; 60:353-8. [PMID: 16860528 DOI: 10.1016/j.biopha.2006.02.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 02/23/2006] [Indexed: 11/21/2022] Open
Abstract
Polyoxometalates are negatively charged inorganic compounds which contain metal ions such as tungsten, molybdenum, vanadium etc. and which make clusters with the surrounding oxygen atoms. [NH3Pri]6[Mo7O24].3H2O (PM-8) was found to be a significant antitumor polyoxomolybdates. It had already been reported that the PM-8 suppressed the growth of Co-4 human colon cancer, MX-1 human breast cancer and OAT human lung cancer xenografted in nude mice. However, the mechanism of the antitumor activity has not been clarified. In this study, the antitumor activity of one of the metal oxide clusters (polyoxometalates), hexabis(isopropylammonium) heptamolybdate trihydrate, [NH3Pri]6[Mo7O24].3H2O (PM-8) were shown in an MTS assay. DNA ladder formation and detection of apoptotic bodies in nuclei were revealed that antitumor activity of PM-8 in MKN45 cells was due to apoptosis. It is concluded that the observation of significant tumor growth suppression of PM-8 in MKN45-bearing mice results from the induction of apoptosis. PM-8 shows promise as a novel anti-cancer agent.
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Affiliation(s)
- S Mitsui
- Chemical Research Laboratory, Tokyo Institute of Technology, R1-21, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Yanagie H, Ogata A, Mitsui S, Hisa T, Yamase T, Eriguchi M. Anticancer activity of polyoxomolybdate. Biomed Pharmacother 2006; 60:349-52. [PMID: 16860529 DOI: 10.1016/j.biopha.2006.06.018] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 02/22/2006] [Indexed: 11/20/2022] Open
Abstract
Anticancer polyoxomolybdates have been investigated for medical application of polyoxometalates as discrete cluster anions of metal oxides. [NH3Pri]6[Mo7O24].3H2O (PM-8) has been recognized as one of significant antitumoral polyoxomolybdates. PM-8 had shown the growth suppression against several tumors, for examples, Co-4, human colon cancer, MX-1, human breast cancer, and OAT, human lung cancer. PM-8 showed the tumor growth suppression for MKN-45 human gastric cancer in tumor bearing mice. PM-8 inhibited the cell growth of AsPC-1 which depended on the dose with showing DNA ladder formation and DNA fragmentation, and positive Hoechst staining indicating apoptosis. The ratio of apoptotic cells on flow cytometry analysis were 35%, and 57% with treatment of PM-8 after 48, and 72 h, respectively. One of the anti-tumor activity of PM-8 result from the activation of apoptotic pathway. It is thought that polyoxomolybdates will be applied as a novel anti-tumor agent especially against cancers which are difficult to be treated clinically.
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Affiliation(s)
- H Yanagie
- Department of Intellectual Property, Project of Cancer Metastasis Inhibition, Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan.
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Ogata A, Mitsui S, Yanagie H, Kasano H, Hisa T, Yamase T, Eriguchi M. A novel anti-tumor agent, polyoxomolybdate induces apoptotic cell death in AsPC-1 human pancreatic cancer cells. Biomed Pharmacother 2005; 59:240-4. [PMID: 15908170 DOI: 10.1016/j.biopha.2004.11.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2004] [Accepted: 11/26/2004] [Indexed: 10/25/2022] Open
Abstract
Anti-tumoral polyoxomolybdates have been investigated in the course of study of the medical application of polyoxometalates as discrete cluster anions of metal oxides. [NH(3)Pr(i)](6)[Mo(7)O(24)].3H(2)O (PM-8) has been recognized as one of significantly anti-tumoral polyoxomolybdates. PM-8 inhibited the cell growth of human pancreatic cells (AsPC-1) depending on the dose. DNA ladder formation and DNA fragmentation were observed by Hoechst and TUNEL staining and flowcytometry analysis. The ratio of apoptotic cells were 29%, 35%, and 57% with treatment of PM-8 after 24, 48, and 72 h, respectively, which suggested that the anti-tumor activity of PM-8 results from the activation of the apoptotic pathway. Polyoxomolybdates provide promising, novel anti-tumor agent, especially for the treatment of cancers that are difficult to treat.
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Affiliation(s)
- A Ogata
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-21, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Krilov LR. Recent developments in the treatment and prevention of respiratory syncytial virus infection. Expert Opin Ther Pat 2005. [DOI: 10.1517/13543776.12.3.441] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Liu J, Mei WJ, Xu AW, Tan CP, Shi S, Ji LN. Synthesis, characterization and antiviral activity against influenza virus of a series of novel manganese-substituted rare earth borotungstates heteropolyoxometalates. Antiviral Res 2004; 62:65-71. [PMID: 15026204 DOI: 10.1016/j.antiviral.2003.12.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2003] [Accepted: 12/10/2003] [Indexed: 11/17/2022]
Abstract
A series of novel manganese-substituted mixed-valence rare earth borotungsto-heteropoly blues, Ln2H3[BW9(VI)W2(V)Mn(H2O)O39] x 12H2O (Ln(2), Ln = La, Ce, Pr, Nd, Sm, Eu and Gd), as well as their corresponding heteropoly acids (Ln(0)), have been prepared and characterized by cyclic voltammetry (CV), infrared (IR), ultraviolet (UV), thermal gravimetric (TG) and differential thermal (DTA) analysis, X-ray photoelectron spectroscopy (XPS) and electrochemistry. It's shown that the heteropoly blues anion in Ln(2) still retains the alpha-Keggin structure but with a slight distortion as heteropoly acids do, and Mn and W atoms distribute statistically in the whole molecular. At the same time, the cell toxicity and antiviral activity of these rare earth borotungstateheteropoly blues against influenza virus type A and type B in MDCK cells have been investigated using plaque reduction assay. The results elucidated that these complexes exhibit a significantly inhibitory activity and almost no cytotoxicity comparable with those obtained from virazole, and the anti-virus activity depend on the structure of these complexes.
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Affiliation(s)
- Jie Liu
- Department of Chemistry, The Key Laboratory of Gene Engineering of Education Ministry, Zhongshan University, Guangzhou 510275, PR China.
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Niu J, Zhao J, Guo D, Wang J. Preparation, electrochemistry and crystal structure of a derivative of 18-tungstophosphate with Dawson structure: K16H[Yb(α-2-P2W17O61)2]·44H2O. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2004.02.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nomiya K, Hasegawa T, Noguchi R, Nomura KI, Takahashi M, Yokoyama H. Synthesis, Characterization and Crystal Structure of the Water-Soluble, All-Inorganic Composition, A,β-Keggin Triniobium(V)-Substituted Polyoxotungstate. CHEM LETT 2001. [DOI: 10.1246/cl.2001.1278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Nomiya K, Torii H, Hasegawa T, Nemoto Y, Nomura K, Hashino K, Uchida M, Kato Y, Shimizu K, Oda M. Insulin mimetic effect of a tungstate cluster. Effect of oral administration of homo-polyoxotungstates and vanadium-substituted polyoxotungstates on blood glucose level of STZ mice. J Inorg Biochem 2001; 86:657-67. [PMID: 11583783 DOI: 10.1016/s0162-0134(01)00233-1] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aqueous vanadate and aqueous tungstate have been known to mimic all or most of the actions of insulin in intact cell systems with respect to normalization of the blood glucose level. By carrying out oral administration in vivo experiments on the blood glucose level of streptozotocin (STZ)-induced diabetes (STZ mice), the insulin-mimetic (IM) effects of metal-oxide clusters of all-inorganic composition were examined using many types of polyoxometalates (POM) with and without vanadium substitution. Several homo-POM and vanadium-substituted POM showed hypoglycemic effects. The observed hypoglycemic effects indicated that POM with the Dawson structure [[alpha-P(2)W(18)O(62)](6-) (W-2), [alpha-P(2)W(17)V(V)O(62)](7-) (V-19) and [alpha-1,2,3-P(2)W(15)V(V)(3)O(62)](9-) (V-04)] are more effective than those with the Keggin structure [[alpha-PW(12)O(40)](3-) (W-1), [alpha-PW(11)V(V)O(40)](4-) (V-01), [alpha-1,2-PW(10)V(V)(2)O(40)](5-) (V-02), [alpha-1,2,3-PW(9)V(V)(3)O(40)](6-) (V-03) and [alpha-1,4,9-PW(9)V(V)(3)O(40)](6-) (V-13)]. The vanadate cluster [V(10)O(28)](6-) (V-15) also showed a hypoglycemic effect. (31)P and (51)V NMR measurements showed that the Dawson POM (W-2, V-04 and V-19) are stable in aqueous solution under the conditions used. The effect of all POM on the body weight of STZ mice was also examined. The decrease in body weight after administration of W-2 was much less than for V-19, V-04 and V-15. This suggests that not only monomeric tungstate and vanadate, but also the structure factors of tungstate and vanadate clusters, can play a significant role in their biological action.
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Affiliation(s)
- K Nomiya
- Department of Materials Science, Faculty of Science, Kanagawa University, Hiratsuka, 259-1293, Kanagawa, Japan.
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Synthesis and crystal structure of a novel compound: [H 3 PMo 12 O 40 ][CO(NH 2 ) 2 ] 3 ·5H 2 O. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00476-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Liu J, Mei W, Li Y, Wang E, Ji L, Tao P. Antiviral activity of mixed-valence rare earth borotungstate heteropoly blues against influenza virus in mice. Antivir Chem Chemother 2000; 11:367-72. [PMID: 11227994 DOI: 10.1177/095632020001100603] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The acute and accumulated toxicity of the rare earth borotungstate heteropoly blues, HPB-2, Ce2H3[BW9(VI)W2(V)Mn(H2O)O39].12H2O, which is active against influenza virus in Kunming mice, were investigated in Kunming mice following oral and intraperitoneal administration. The activity of HPB-2 against influenza virus (FM1) in the mice was then investigated. HPB-2, given either orally (p.o.) or intraperitoneally (i.p.), was shown to have activity. HPB-2 was shown to be more effective than the positive control, ribavirin, and it was also found that i.p. administration was more effective than p.o. administration.
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Affiliation(s)
- J Liu
- State Key Laboratory of Ultrafast Laser Spectroscopy/Department of Chemistry, Zhongshan University, Guangzhou, PR China.
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Shigeta S. Recent progress in antiviral chemotherapy for respiratory syncytial virus infections. Expert Opin Investig Drugs 2000; 9:221-35. [PMID: 11060673 DOI: 10.1517/13543784.9.2.221] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The recent progress in antiviral chemotherapy against respiratory syncytial virus (RSV) infections was reviewed. RSV infections among high risk individuals, such as premature babies, infants with congenital disease of cardiopulmonary system or immune system and the aged, hospitalised patients with immunosuppressed status are threatened, with high mortality rates and thus need anti-viral chemotherapy. Clinical efficacy of ribavirin and humanized monoclonal antibody (mAb) against RSV infections as well as experimental reports of novel anti-RSV compounds under investigation such as membrane fusion inhibitors were introduced.
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Affiliation(s)
- S Shigeta
- Department of Microbiology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, 960-1295, Japan
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Colacino JM, Staschke KA, Laver WG. Approaches and strategies for the treatment of influenza virus infections. Antivir Chem Chemother 1999; 10:155-85. [PMID: 10480736 DOI: 10.1177/095632029901000402] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Influenza A and B viruses belong to the Orthomyxoviridae family of viruses. These viruses are responsible for severe morbidity and significant excess mortality each year. Infection with influenza viruses usually leads to respiratory involvement and can result in pneumonia and secondary bacterial infections. Vaccine approaches to the prophylaxis of influenza virus infections have been problematic owing to the ability of these viruses to undergo antigenic shift by exchanging genomic segments or by undergoing antigenic drift, consisting of point mutations in the haemagglutinin (HA) and neuraminidase (NA) genes as a result of an error-prone viral polymerase. Historically, antiviral approaches for the therapy of both influenza A and B viruses have been largely unsuccessful until the elucidation of the X-ray crystallographic structure of the viral NA, which has permitted structure-based drug design of inhibitors of this enzyme. In addition, recent advances in the elucidation of the structure and complex function of influenza HA have resulted in the discovery of a number of diverse compounds that target this viral protein. This review article will focus largely on newer antiviral agents including those that inhibit the influenza virus NA and HA. Other novel approaches that have entered clinical trials or been considered for their clinical utility will be mentioned.
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Affiliation(s)
- J M Colacino
- Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN 46285, USA.
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Bartis J, Dankova M, Lessmann JJ, Luo QH, Horrocks WD, Francesconi LC. Lanthanide Complexes of the alpha-1 Isomer of the [P(2)W(17)O(61)](10-) Heteropolytungstate: Preparation, Stoichiometry, and Structural Characterization by (183)W and (31)P NMR Spectroscopy and Europium(III) Luminescence Spectroscopy. Inorg Chem 1999; 38:1042-1053. [PMID: 11670884 DOI: 10.1021/ic980384i] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The alpha-1 and alpha-2 [P(2)W(17)O(61)](10)(-) isomers, derivatives of the Wells-Dawson molecule, [alpha-P(2)W(18)O(62)](6)(-), may be useful ligands for stabilizing high-valent metal ions and lanthanides and actinides. However, the potential utility of the [alpha1-P(2)W(17)O(61)](10)(-) ligand has not been realized. Specifically, for the lanthanides, the stoichiometry, structure, and purity of the lanthanide complexes of the [alpha1-P(2)W(17)O(61)](10)(-) isomer are ambiguous. We have prepared lanthanide (Ln) complexes of the [alpha1-P(2)W(17)O(61)](10)(-) isomer in >/=98% isomeric purity, according to (31)P NMR data. (183)W NMR data clearly showed, for the first time, that the C(1) symmetry of the [alpha1-P(2)W(17)O(61)](10)(-) lanthanide complexes was maintained in solution. We determined the stoichiometry of the lanthanide complexes of the [alpha1-P(2)W(17)O(61)](10)(-) isomer in solution by two different methods: a complexometric titration method and excited state lifetime measurements and luminescence titrations for the europium(III) analogue. All experiments show a 1:1 Ln:[alpha1-P(2)W(17)O(61)](10)(-) ratio. The (31)P NMR data showed that the lanthanides with smaller ionic radii (higher charge-size ratio) form stable complexes, even surviving crystallization from hot water. On the other hand, the lanthanum analogues were not stable in solutions of high lithium content. The tetrabutylammonium salt of the [Lu(alpha1-P(2)W(17)O(61))](7)(-) complex showed >/=98% isomeric purity and the C(1) symmetry required for a derivative of [alpha1-P(2)W(17)O(61)](10)(-). Also the tetrabutylammonium cation stabilized the [Lu(alpha1-P(2)W(17)O(61))](7)(-) complex; a mixed tetrabutylammonium, lithium salt was stable in water for weeks according to (31)P NMR spectroscopy.
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Affiliation(s)
- Judit Bartis
- Departments of Chemistry, Hunter College of the City University of New York, New York, New York 10021, and The Pennsylvania State University, University Park, Pennsylvania 16802
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Gouzerh P, Proust A. Main-Group Element, Organic, and Organometallic Derivatives of Polyoxometalates. Chem Rev 1998; 98:77-112. [PMID: 11851500 DOI: 10.1021/cr960393d] [Citation(s) in RCA: 671] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pierre Gouzerh
- Laboratoire de Chimie des Métaux de Transition, URA CNRS No. 419, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Preparation and characterization of new peroxyniobium-containing phosphotungstates with dawson structures. Polyhedron 1996. [DOI: 10.1016/0277-5387(95)00474-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Radkov E, Beer RH. High yield synthesis of mixed-metal keggin polyoxoanions in non-aqueous solvents: Preparation of (n-Bu4N)4[PMW11O40] (M = V, Nb, Ta). Polyhedron 1995. [DOI: 10.1016/0277-5387(95)00026-o] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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