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Razavi SF, Bamoharram FF, Hashemi T, Shahrokhabadi K, Davoodnia A. Nanolipid-loaded Preyssler polyoxometalate: Synthesis, characterization and invitro inhibitory effects on HepG2 tumor cells. Toxicol In Vitro 2020; 68:104917. [PMID: 32580012 DOI: 10.1016/j.tiv.2020.104917] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 04/23/2020] [Accepted: 06/12/2020] [Indexed: 10/24/2022]
Abstract
Polyoxometalate-based drugs have been selected by some researchers as alternative antitumor substances with promising results in suppression of tumor growth because of low toxicity towards the human body and high activity. In this research, for the first time, nanolipid-loaded Preyssler polyoxometalate with diameters of 230-250 nm was synthesized and characterized by the Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Analysis (EDAX), Atomic Force Microscopy (AFM), and Infrared (IR) spectroscopy. The nanoliposomes were found to be nearly spherical, without any agglomeration with the Entrapment Efficiency of 53.8%. In -vitro antitumor activity of the synthesized nanoliposomes was investigated using the MTT method on HepG2 tumor cells. Our findings showed enhanced anticancer activity for the nanolipid-loaded Preyssler (NLP) compared to the Sorafenib as a commercially drug at 72 h. Selectivity of the synthesized NLP and Sorafenib for cancer cells versus primary HFF cells was obtained as 4.2 and 2.2, respectively. The IC50 value of the loaded nanoliposomes for cancer cells and normal cells was equal to 470 and 2000 μg/mL, respectively at 72 h, which was much better compared to that of the Sorafenib (7 and 16 μg/mL, respectively).
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Affiliation(s)
- Safieh Fazel Razavi
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Fatemeh F Bamoharram
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
| | - Toktam Hashemi
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
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2
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Fraqueza G, Fuentes J, Krivosudský L, Dutta S, Mal SS, Roller A, Giester G, Rompel A, Aureliano M. Inhibition of Na +/K +- and Ca 2+-ATPase activities by phosphotetradecavanadate. J Inorg Biochem 2019; 197:110700. [PMID: 31075720 DOI: 10.1016/j.jinorgbio.2019.110700] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/16/2019] [Accepted: 04/25/2019] [Indexed: 02/07/2023]
Abstract
Polyoxometalates (POMs) are promising inorganic inhibitors for P-type ATPases. The experimental models used to study the effects of POMs on these ATPases are usually in vitro models using vesicles from several membrane sources. Very recently, some polyoxotungstates, such as the Dawson anion [P2W18O62]6-, were shown to be potent P-type ATPase inhibitors; being active in vitro as well as in ex-vivo. In the present study we broaden the spectrum of highly active inhibitors of Na+/K+-ATPase from basal membrane of epithelial skin to the bi-capped Keggin-type anion phosphotetradecavanadate Cs5.6H3.4PV14O42 (PV14) and we confront the data with activity of other commonly encountered polyoxovanadates, decavanadate (V10) and monovanadate (V1). The X-ray crystal structure of PV14 was solved and contains two trans-bicapped α-Keggin anions HxPV14O42(9-x)-. The anion is built up from the classical Keggin structure [(PO4)@(V12O36)] capped by two [VO] units. PV14 (10 μM) exhibited higher ex-vivo inhibitory effect on Na+/K+-ATPase (78%) than was observed at the same concentrations of V10 (66%) or V1 (33%). Moreover, PV14 is also a potent in vitro inhibitor of the Ca2+-ATPase activity (IC50 5 μM) exhibiting stronger inhibition than the previously reported activities for V10 (15 μM) and V1 (80 μM). Putting it all together, when compared both P-typye ATPases it is suggested that PV14 exibited a high potential to act as an in vivo inhibitor of the Na+/K+-ATPase associated with chloride secretion.
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Affiliation(s)
- Gil Fraqueza
- ISE, University of Algarve, 8005-139 Faro, Portugal; CCMar, University of Algarve, 8005-139 Faro, Portugal
| | - Juan Fuentes
- CCMar, University of Algarve, 8005-139 Faro, Portugal
| | - Lukáš Krivosudský
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstr. 14, 1090 Wien, Austria; Comenius University, Faculty of Natural Sciences, Department of Inorganic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovakia
| | - Saikat Dutta
- Department of Chemistry, National Institute of Technology Karnataka, Mangalore 575025, Karnataka, India
| | - Sib Sankar Mal
- Department of Chemistry, National Institute of Technology Karnataka, Mangalore 575025, Karnataka, India.
| | - Alexander Roller
- Universität Wien, Fakultät für Chemie, Zentrum für Röntgenstrukturanalyse, 1090 Wien, Austria
| | - Gerald Giester
- Universität Wien, Fakultät für Geowissenschaften, Geographie und Astronomie, Institut für Mineralogie und Kristallographie, 1090 Wien, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstr. 14, 1090 Wien, Austria.
| | - Manuel Aureliano
- CCMar, University of Algarve, 8005-139 Faro, Portugal; FCT, University of Algarve, 8005-139 Faro, Portugal.
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Bijelic A, Aureliano M, Rompel A. Polyoxometalates as Potential Next-Generation Metallodrugs in the Combat Against Cancer. Angew Chem Int Ed Engl 2019; 58:2980-2999. [PMID: 29893459 PMCID: PMC6391951 DOI: 10.1002/anie.201803868] [Citation(s) in RCA: 305] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Indexed: 02/05/2023]
Abstract
Polyoxometalates (POMs) are an emerging class of inorganic metal oxides, which over the last decades demonstrated promising biological activities by the virtue of their great diversity in structures and properties. They possess high potential for the inhibition of various tumor types; however, their unspecific interactions with biomolecules and toxicity impede their clinical usage. The current focus of the field of biologically active POMs lies on organically functionalized and POM-based nanocomposite structures as these hybrids show enhanced anticancer activity and significantly reduced toxicity towards normal cells in comparison to unmodified POMs. Although the antitumor activity of POMs is well documented, their mechanisms of action are still not well understood. In this Review, an overview is given of the cytotoxic effects of POMs with a special focus on POM-based hybrid and nanocomposite structures. Furthermore, we aim to provide proposed mode of actions and to identify molecular targets. POMs are expected to develop into the next generation of anticancer drugs that selectively target cancer cells while sparing healthy cells.
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Affiliation(s)
- Aleksandar Bijelic
- Universität WienFakultät für ChemieInstitut für Biophysikalische ChemieAlthanstraße 141090WienAustria
| | - Manuel Aureliano
- Universidade do AlgarveFaculdade de Ciências e Tecnologia (FCT), CCMar8005-139FaroPortugal
| | - Annette Rompel
- Universität WienFakultät für ChemieInstitut für Biophysikalische ChemieAlthanstraße 141090WienAustria
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Li XH, Chen WL, Wei M, Liu J, Di Y, Liu L, Li YG, Wang EB. Polyoxometalates nanoparticles improve anti-tumor activity by maximal cellular uptake. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Marques-da-Silva D, Fraqueza G, Lagoa R, Vannathan AA, Mal SS, Aureliano M. Polyoxovanadate inhibition of Escherichia coli growth shows a reverse correlation with Ca2+-ATPase inhibition. NEW J CHEM 2019. [DOI: 10.1039/c9nj01208g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Polyoxovanadates were recently found to be the most active among a series of polyoxometalates against bacteria. In this study, a reverse correlation was found between the Ca2+-ATPase IC50 and the E. Coli GI50 values.
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Affiliation(s)
- Dorinda Marques-da-Silva
- ESTG, Polytechnic Institute of Leiria
- Portugal
- UCIBIO, Faculty of Science and Technology
- University NOVA of Lisbon
- Portugal
| | - Gil Fraqueza
- ISE, University of Algarve
- 8005-139 Faro
- Portugal
- CCMar, University of Algarve
- 8005-139 Faro
| | - Ricardo Lagoa
- ESTG, Polytechnic Institute of Leiria
- Portugal
- UCIBIO, Faculty of Science and Technology
- University NOVA of Lisbon
- Portugal
| | | | - Sib Sankar Mal
- Department of Chemistry
- National Institute of Technology Karnataka
- Mangalore 575025
- India
| | - Manuel Aureliano
- CCMar, University of Algarve
- 8005-139 Faro
- Portugal
- FCT
- University of Algarve
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Hu X, Chen Q, Zhang DD, Chen XW, Wang JH. Pyridine boronic acid-polyoxometalate based porous hybrid for efficient depletion of high abundant glycoproteins in plasma. J Mater Chem B 2018; 6:8196-8203. [PMID: 32254939 DOI: 10.1039/c8tb02265h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A porous hybrid, namely PW12@TiO2-Si(Et)Si/Pba, is fabricated by the modification of PW12@TiO2-Si(Et)Si with pyridine boronic acid via a solvothermal method. The covalent interactions between the boronic acid group of the hybrid and the glycosylated site of proteins provide the as-prepared hybrid with favorable adsorption performance towards glycoproteins. The adsorption behaviors of glycoproteins onto the hybrid fit well with the Langmuir model, and the adsorption capacities for glycoprotein IgG and Trf are high, up to 348.5 mg g-1 and 262.6 mg g-1, respectively. Thus, a protocol for the depletion of high abundant glycoproteins from human plasma is proposed. The percentage contents of Trf, IgG, haptoglobinis and IgM are reduced from 7.38%, 5.5%, 3.01% and 1.02% to 0.951%, 4.7%, 0.126% and 0.76%, respectively. 85 low abundant proteins are identified from the raw plasma after the depletion of the high abundance proteins, demonstrating the potential of PW12@TiO2-Si(Et)Si/Pba hybrid in proteomic studies.
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Affiliation(s)
- Xue Hu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China.
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Bijelic A, Aureliano M, Rompel A. Im Kampf gegen Krebs: Polyoxometallate als nächste Generation metallhaltiger Medikamente. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803868] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Aleksandar Bijelic
- Universität WienFakultät für ChemieInstitut für Biophysikalische Chemie Althanstraße 14 1090 Wien Österreich
| | - Manuel Aureliano
- Universidade do AlgarveFaculdade de Ciências e Tecnologia (FCT), CCMar 8005-139 Faro Portugal
| | - Annette Rompel
- Universität WienFakultät für ChemieInstitut für Biophysikalische Chemie Althanstraße 14 1090 Wien Österreich
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Vandebroek L, De Zitter E, Ly HGT, Conić D, Mihaylov T, Sap A, Proost P, Pierloot K, Van Meervelt L, Parac-Vogt TN. Protein-Assisted Formation and Stabilization of Catalytically Active Polyoxometalate Species. Chemistry 2018; 24:10099-10108. [PMID: 29797738 DOI: 10.1002/chem.201802052] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/17/2018] [Indexed: 01/24/2023]
Abstract
The effect of the protein environment on the formation and stabilization of an elusive catalytically active polyoxometalate (POM) species, K6 [Hf(α2 -P2 W17 O61 )] (1), is reported. In the co-crystal of hen egg-white lysozyme (HEWL) with 1, the catalytically active monomeric species is observed, originating from the dimeric 1:2 POM form, while it is intrinsically unstable under physiological pH conditions. The protein-assisted dissociation of the dimeric POM was rationalized by means of DFT calculations. The dissociation process is unfavorable in bulk water, but becomes favorable in the protein-POM complex due to the low dielectric response at the protein surface. The crystal structure shows that the monomeric form is stabilized by electrostatic and water-mediated hydrogen bonding interactions with the protein. It interacts at three distinct sites, close to the aspartate-containing hydrolysis sites, demonstrating high selectivity towards peptide bonds containing this residue.
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Affiliation(s)
- Laurens Vandebroek
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Elke De Zitter
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Hong Giang Thi Ly
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Dragan Conić
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Tzvetan Mihaylov
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Annelies Sap
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Paul Proost
- Department of Microbiology and Immunology, Rega Institute, Herestraat 49 box 1042, 3000, Leuven, Belgium
| | - Kristine Pierloot
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Luc Van Meervelt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, 3001, Leuven, Belgium
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McLauchlan CC, Murakami HA, Wallace CA, Crans DC. Coordination environment changes of the vanadium in vanadium-dependent haloperoxidase enzymes. J Inorg Biochem 2018; 186:267-279. [PMID: 29990751 DOI: 10.1016/j.jinorgbio.2018.06.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 11/17/2022]
Abstract
Vanadium-dependent haloperoxidases are a class of enzymes that catalyze oxidation reactions with halides to form halogenated organic products and water. These enzymes include chloroperoxidase and bromoperoxidase, which have very different protein sequences and sizes, but regardless the coordination environment of the active sites is surprisingly constant. In this manuscript, the comparison of the coordination chemistry of V-containing-haloperoxidases of the trigonal bipyramidal geometry was done by data mining. The catalytic cycle imposes changes in the coordination geometry of the vanadium to accommodate the peroxidovanadium(V) intermediate in an environment we describe as a distorted square pyramidal geometry. During the catalytic cycle, this intermediate converts to a trigonal bipyramidal intermediate before losing the halogen and forming a tetrahedral vanadium-protein intermediate. Importantly, the catalysis is facilitated by a proton-relay system supplied by the second sphere coordination environment and the changes in the coordination environment of the vanadium(V) making this process unique among protein catalyzed processes. The analysis of the coordination chemistry shows that the active site is very tightly regulated with only minor changes in the coordination geometry. The coordination geometry in the protein structures deviates from that found for both small molecules crystalized in the absence of protein and the reported functional small molecule model compounds. At this time there are no examples reported of a structurally similar small molecule with the geometry observed for the peroxidovanadium(V) in the active site of the vanadium-containing haloperoxidases.
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Affiliation(s)
- Craig C McLauchlan
- Department of Chemistry, Illinois State University, Campus Box 4160, Normal, IL 61790, USA.
| | - Heide A Murakami
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Craig A Wallace
- Department of Chemistry, Illinois State University, Campus Box 4160, Normal, IL 61790, USA
| | - Debbie C Crans
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA; Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO 80523, USA.
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