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Mbatha B, Khathi A, Sibiya N, Booysen I, Ngubane P. A Dioxidovanadium Complex cis-[VO2 (obz) py] Attenuates Hyperglycemia in Streptozotocin (STZ)-Induced Diabetic Male Sprague-Dawley Rats via Increased GLUT4 and Glycogen Synthase Expression in the Skeletal Muscle. Evidence-Based Complementary and Alternative Medicine 2022; 2022:1-11. [PMID: 35140800 PMCID: PMC8820858 DOI: 10.1155/2022/5372103] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/22/2021] [Accepted: 12/11/2021] [Indexed: 11/17/2022]
Abstract
Vanadium has demonstrated antihyperglycemic effects in diabetes mellitus (DM) but is, however, associated with toxicity. Therefore, new vanadium complexes envisaged to possess heightened therapeutic potency while rendering less toxicity are being explored. Accordingly, the aim of the study was to investigate the effects of a dioxidovanadium (V) complex, cis-[VO2 (obz) py], on selected glucose metabolism markers in streptozotocin (STZ)-induced diabetic rats. STZ-induced diabetic rats were treated orally with cis-[VO2 (obz) py] (10, 20, and 40 mg/kg) twice every 3rd day for 5 weeks. Blood glucose concentrations, body weight, and food and water intake were monitored weekly, for 5 weeks. Rats were then euthanized after which blood, liver, and muscle tissues were collected for biochemical analysis. The administration of dioxidovanadium complex significantly decreased blood glucose concentrations throughout the 5-week period in comparison with the diabetic control (DC). The attenuation of hyperglycemia was accompanied by an increased glycogen concentration in both liver and muscle tissues in the treated groups. Furthermore, a significant increase was observed in the expression of glucose transporter type 4 (GLUT4) in the skeletal muscle tissues and glycogen synthase in the liver tissues. These findings indicate that our vanadium complex cis-[VO2 (obz) py] may exert antihyperglycemic effects through increased glucose uptake, glycogen synthesis, and increased GLUT4 and glycogen synthase expression.
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Nunes P, Correia I, Cavaco I, Marques F, Pinheiro T, Avecilla F, Pessoa JC. Therapeutic potential of vanadium complexes with 1,10-phenanthroline ligands, quo vadis? Fate of complexes in cell media and cancer cells. J Inorg Biochem 2021; 217:111350. [PMID: 33477088 DOI: 10.1016/j.jinorgbio.2020.111350] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 12/14/2022]
Abstract
VIVO-complexes formulated as [VIVO(OSO3)(phen)2] (1) (phen = 1,10-phenanthroline), [VIVO(OSO3)(Me2phen)2] (2) (Me2phen = 4,7-dimethyl-1,10-phenanthroline) and [VIVO(OSO3)(amphen)2] (3) (amphen = 5-amino-1,10-phenanthroline) were prepared and stability in cell incubation media evaluated. Their cytotoxicity was determined against the A2780 (ovarian), MCF7 (breast) and PC3 (prostate) human cancer cells at different incubation times. While at 3 and 24 h the cytotoxicity differs for complexes and corresponding free ligands, at 72 h incubation all compounds are equally active presenting low IC50 values. Upon incubation of A2780 cells with 1-3, cellular distribution of vanadium in cytosol, membranes, nucleus and cytoskeleton, indicate that the uptake of V is low, particularly for 1, and that the uptake pattern depends on the ligand. Nuclear microscopic techniques are used for imaging and elemental quantification in whole PC3 cells incubated with 1. Once complexes are added to cell culture media, they decompose, and with time most VIV oxidizes to VV-species. Modeling of speciation when [VIVO(OSO3)(phen)2] (1) is added to cell media is presented. At lower concentrations of 1, VIVO- and phen-containing species are mainly bound to bovine serum albumin, while at higher concentrations [VIVO(phen)n]2+-complexes become relevant, being predicted that the species taken up and mechanisms of action operating depend on the total concentration of complex. This study emphasizes that for these VIVO-systems, and probably for many others involving oxidovanadium or other labile metal complexes, it is not possible to identify active species or propose mechanisms of cytotoxic action without evaluating speciation occurring in cell media.
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Bošnjaković-Pavlović N, Xu X, Krstić D, Gillet JM, Wei Y, Wu P, Čolović M, Spasojević-de Biré A. Experimental and theoretical insights of functionalized hexavanadates on Na +/K +-ATPase activity; molecular interaction field, ab initio calculations and in vitro assays. J Inorg Biochem 2019; 198:110720. [PMID: 31150927 DOI: 10.1016/j.jinorgbio.2019.110720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 12/04/2018] [Revised: 04/27/2019] [Accepted: 05/13/2019] [Indexed: 02/02/2023]
Abstract
The influence of three functionalized hexavanadates (V6): Na2 [V6O13{(OCH2)3CCH3}2], [H2]2 [V6O13{(OCH2)3CCH2OCOCH2CH3}2] and [(C4H9)4N]2 [V6O13{(OCH2)3CCH2OOC(CH3)2-COOH}2 on Na+/K+-ATPase activity, was investigated in vitro. Including compounds already tested by Xu et al. (Journal of Inorganic Biochemistry 161 (2016) 27-36), all functionalized hexavanadates inhibit the activity of Na+/K+-ATPase in a dose-dependent manner but with different inhibitory potencies. Na2 [V6O13{(OCH2)3CCH3}2] was found to have the best inhibition properties - showing 50% inhibition IC50 = 5.50 × 10-5 M, while [(C4H9)4N]2 [V6O13{(OCH2)3CCH2OOC(CH3)2-COOH}2] showed the lowest inhibitory power, IC50 = 1.31 × 10-4 M. In order to understand the bioactivity of functionalized hexavanadates series, we have also used a combined theoretical approach: determination of electrostatic potential from ab initio theoretical calculations and computation of the molecular interaction field (MIF) surface.
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Affiliation(s)
- Nada Bošnjaković-Pavlović
- Université Paris-Saclay, CentraleSupélec, Campus de Paris-Saclay, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France; CNRS, UMR 8580, Laboratory "Structures Propriétés et Modélisation des Solides" (SPMS), Campus de Gif, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France
| | - Xiao Xu
- Université Paris-Saclay, CentraleSupélec, Campus de Paris-Saclay, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France; CNRS, UMR 8580, Laboratory "Structures Propriétés et Modélisation des Solides" (SPMS), Campus de Gif, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France
| | - Danijela Krstić
- Institute of Medical Chemistry, Faculty of Medicine, University of Belgrade, Serbia
| | - Jean-Michel Gillet
- Université Paris-Saclay, CentraleSupélec, Campus de Paris-Saclay, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France; CNRS, UMR 8580, Laboratory "Structures Propriétés et Modélisation des Solides" (SPMS), Campus de Gif, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France
| | - Yongge Wei
- Department of Chemistry, Tsinghua University, 100084 Beijing, PR China
| | - Pingfan Wu
- Institute of POM-based Materials, The Synergistic Innovation Center of Catalysis Materials of Hubei Province, Hubei University of Technology, 430086 Wuhan, Hubei Province, PR China
| | - Mirjana Čolović
- Department of Physical Chemistry, Vinča Institute of Nuclear Sciences, University of Belgrade, Serbia
| | - Anne Spasojević-de Biré
- Université Paris-Saclay, CentraleSupélec, Campus de Paris-Saclay, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France; CNRS, UMR 8580, Laboratory "Structures Propriétés et Modélisation des Solides" (SPMS), Campus de Gif, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France.
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Postal K, Maluf DF, Valdameri G, Rüdiger A, Hughes DL, de Sá EL, Ribeiro RR, de Souza EM, Soares JF, Nunes GG. Chemoprotective activity of mixed valence polyoxovanadates against diethylsulphate in E. coli cultures: insights from solution speciation studies. RSC Adv 2016. [DOI: 10.1039/c6ra15826a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cell survival after treatment with dimethylsulphate in the presence of polyoxovanadates.
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Affiliation(s)
- K. Postal
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - D. F. Maluf
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - G. Valdameri
- Departamento de Bioquímica e Biologia Molecular
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - A. L. Rüdiger
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - D. L. Hughes
- School of Chemistry
- University of East Anglia
- Norwich NR4 7TJ
- UK
| | - E. L. de Sá
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - R. R. Ribeiro
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - E. M. de Souza
- Departamento de Bioquímica e Biologia Molecular
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - J. F. Soares
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
| | - G. G. Nunes
- Departamento de Química
- Universidade Federal do Paraná
- 81530-900 – Curitiba-PR
- Brazil
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Colín-Barenque L, Pedraza-Chaverri J, Medina-Campos O, Jimenez-Martínez R, Bizarro-Nevares P, González-Villalva A, Rojas-Lemus M, Fortoul TI. Functional and morphological olfactory bulb modifications in mice after vanadium inhalation. Toxicol Pathol 2014; 43:282-91. [PMID: 25492423 DOI: 10.1177/0192623314548668] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Neurodegenerative disorders, such as Parkinson's and Alzheimer's diseases, have olfaction impairment. These pathologies have also been linked to environmental pollutants. Vanadium is a pollutant, and its toxic mechanisms are related to the production of oxidative stress. In this study, we evaluated the effects of inhaled vanadium on olfaction, the olfactory bulb antioxidant, through histological and ultrastructural changes in granule cells. Mice in control group were made to inhale saline; the experimental group inhaled 0.02-M vanadium pentoxide (V2O5) for 1 hr twice a week for 4 weeks. Animals were sacrificed at 1, 2, 3, and 4 weeks after inhalation. Olfactory function was evaluated by the odorant test. The activity of glutathione peroxidase (GPx) and glutathione reductase (GR) was assayed in olfactory bulbs and processed for rapid Golgi method and ultrastructural analysis. Results show that olfactory function decreased at 4-week vanadium exposure; granule cells showed a decrease in dendritic spine density and increased lipofuscin, Golgi apparatus vacuolation, apoptosis, and necrosis. The activity of GPx and GR in the olfactory bulb was increased compared to that of the controls. Our results demonstrate that vanadium inhalation disturbs olfaction, histology, and the ultrastructure of the granule cells that might be associated with oxidative stress, a risk factor in neurodegenerative diseases.
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Affiliation(s)
| | - Jose Pedraza-Chaverri
- Department of Biology, Facultad de Química, Ciudad Universitaria México, D.F., Mexico. UNAM
| | - Omar Medina-Campos
- Department of Biology, Facultad de Química, Ciudad Universitaria México, D.F., Mexico. UNAM
| | - Ruben Jimenez-Martínez
- Departament of Cellular and Tissular Biology, School of Medicine, México D.F., Mexico. UNAM
| | | | | | - Marcela Rojas-Lemus
- Departament of Cellular and Tissular Biology, School of Medicine, México D.F., Mexico. UNAM
| | - Teresa I Fortoul
- Departament of Cellular and Tissular Biology, School of Medicine, México D.F., Mexico. UNAM
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