Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System

Metal complexation in general improves the biological properties of ligands. We have previously measured the anticancer effects of the oxidovanadium(IV) cation with chrysin complex, VO(chrys)<sub>2</sub>. In the present study, we synthesized and characterized a new complex generated by t...

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Main Authors: Agustin Actis Dato, Luciana G. Naso, Marilin Rey, Pablo J. Gonzalez, Evelina G. Ferrer, Patricia A. M. Williams
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Inorganics
Subjects:
Online Access:https://www.mdpi.com/2304-6740/10/1/4
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author Agustin Actis Dato
Luciana G. Naso
Marilin Rey
Pablo J. Gonzalez
Evelina G. Ferrer
Patricia A. M. Williams
author_facet Agustin Actis Dato
Luciana G. Naso
Marilin Rey
Pablo J. Gonzalez
Evelina G. Ferrer
Patricia A. M. Williams
author_sort Agustin Actis Dato
collection DOAJ
description Metal complexation in general improves the biological properties of ligands. We have previously measured the anticancer effects of the oxidovanadium(IV) cation with chrysin complex, VO(chrys)<sub>2</sub>. In the present study, we synthesized and characterized a new complex generated by the replacement of one chrysin ligand by phenanthroline (phen), VO(chrys)phenCl, to confer high planarity for DNA chain intercalation and more lipophilicity, giving rise to a better cellular uptake. In effect, the uptake of vanadium has been increased in the complex with phen and the cytotoxic effect of this complex proved higher in the human lung cancer A549 cell line, being involved in its mechanisms of action, the production of cellular reactive oxygen species (ROS), the decrease of the natural antioxidant compound glutathione (GSH) and the ratio GSH/GSSG (GSSG, oxidized GSH), and mitochondrial membrane damage. Cytotoxic activity studies using the non-tumorigenic HEK293 cell line showed that [VO(chrys)phenCl] exhibits selectivity action towards A549 cells after 24 h incubation. The interaction with bovine serum albumin (BSA) by fluorometric determinations showed that the complex could be carried by the protein and that the binding of the complex to BSA occurs through H-bond and van der Waals interactions.
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spelling doaj.art-099b4e068f5b45f18996b01457e06f9d2023-11-23T14:09:02ZengMDPI AGInorganics2304-67402021-12-01101410.3390/inorganics10010004Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin SystemAgustin Actis Dato0Luciana G. Naso1Marilin Rey2Pablo J. Gonzalez3Evelina G. Ferrer4Patricia A. M. Williams5Centro de Química Inorgánica (CEQUINOR, UNLP, CONICET), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 No 1465, La Plata CP B1906CXS, ArgentinaCentro de Química Inorgánica (CEQUINOR, UNLP, CONICET), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 No 1465, La Plata CP B1906CXS, ArgentinaDepartamento de Física, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral and CONICET, Santa Fe S3000ZAA, ArgentinaDepartamento de Física, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral and CONICET, Santa Fe S3000ZAA, ArgentinaCentro de Química Inorgánica (CEQUINOR, UNLP, CONICET), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 No 1465, La Plata CP B1906CXS, ArgentinaCentro de Química Inorgánica (CEQUINOR, UNLP, CONICET), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 No 1465, La Plata CP B1906CXS, ArgentinaMetal complexation in general improves the biological properties of ligands. We have previously measured the anticancer effects of the oxidovanadium(IV) cation with chrysin complex, VO(chrys)<sub>2</sub>. In the present study, we synthesized and characterized a new complex generated by the replacement of one chrysin ligand by phenanthroline (phen), VO(chrys)phenCl, to confer high planarity for DNA chain intercalation and more lipophilicity, giving rise to a better cellular uptake. In effect, the uptake of vanadium has been increased in the complex with phen and the cytotoxic effect of this complex proved higher in the human lung cancer A549 cell line, being involved in its mechanisms of action, the production of cellular reactive oxygen species (ROS), the decrease of the natural antioxidant compound glutathione (GSH) and the ratio GSH/GSSG (GSSG, oxidized GSH), and mitochondrial membrane damage. Cytotoxic activity studies using the non-tumorigenic HEK293 cell line showed that [VO(chrys)phenCl] exhibits selectivity action towards A549 cells after 24 h incubation. The interaction with bovine serum albumin (BSA) by fluorometric determinations showed that the complex could be carried by the protein and that the binding of the complex to BSA occurs through H-bond and van der Waals interactions.https://www.mdpi.com/2304-6740/10/1/4oxidovanadium(IV) phenantrholine chrysinvanadium cellular uptakeanticanceralbumin interaction
spellingShingle Agustin Actis Dato
Luciana G. Naso
Marilin Rey
Pablo J. Gonzalez
Evelina G. Ferrer
Patricia A. M. Williams
Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System
Inorganics
oxidovanadium(IV) phenantrholine chrysin
vanadium cellular uptake
anticancer
albumin interaction
title Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System
title_full Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System
title_fullStr Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System
title_full_unstemmed Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System
title_short Phenanthroline Complexation Enhances the Cytotoxic Activity of the VO-Chrysin System
title_sort phenanthroline complexation enhances the cytotoxic activity of the vo chrysin system
topic oxidovanadium(IV) phenantrholine chrysin
vanadium cellular uptake
anticancer
albumin interaction
url https://www.mdpi.com/2304-6740/10/1/4
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AT marilinrey phenanthrolinecomplexationenhancesthecytotoxicactivityofthevochrysinsystem
AT pablojgonzalez phenanthrolinecomplexationenhancesthecytotoxicactivityofthevochrysinsystem
AT evelinagferrer phenanthrolinecomplexationenhancesthecytotoxicactivityofthevochrysinsystem
AT patriciaamwilliams phenanthrolinecomplexationenhancesthecytotoxicactivityofthevochrysinsystem