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Antibacterial activity and human cell cytotoxic of cobalt (III) complexes with 1,10-phenanthroline and carbohydrate ligands

dc.contributor.authorParada J.
dc.contributor.authorAtria A.M.
dc.contributor.authorBaggio R.
dc.contributor.authorWiese G.
dc.contributor.authorLagos S.
dc.contributor.authorPavón A.
dc.contributor.authorRivas E.
dc.contributor.authorNavarro L.
dc.contributor.authorCorsini G.
dc.date.accessioned2020-09-02T22:25:20Z
dc.date.available2020-09-02T22:25:20Z
dc.date.issued2017
dc.identifier10.4067/s0717-97072017000403746
dc.identifier.citation62, 4, 3746-3751
dc.identifier.issn07179324
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5743
dc.descriptionThe mononuclear cobalt (III) complex derived from 1,10-phenanthroline with lactose [Co(phen)2lactose]Cl2•3H2O (1) has been prepared and its properties have been compared with the sucrose complex [Co(phen)2sucrose]Cl2•3H2O (2) and the complex without carbohydrate [Co(phen)2Cl2]Cl•3H2O (3). The chemical structure of (1) was assigned by 1H-NMR, IR, CD and UV-Vis spectral data. The antibacterial activity of (1) - (3) was evaluated by disc-diffusion assays, using Gram-negative and positive bacteria. The minimum inhibitory concentration of the three complexes on the studied bacteria and their cytotoxicity on HEK293 human cells was determined. A colorimetric plate assay was used to distinguish bacteriostatic from bactericidal effect. Finally, the complexes uptake mechanism was evaluated using bacteria with mutated genes that encode for carbohydrate and siderophore receptors. The results indicate that complex (1) has an antibacterial activity similar to (3), while (2) presents a more restricted one. Moreover, all three complexes act by a bacteriostatic effect against bacterial cells and both (1) and (3) use a siderophore uptake mechanism to enter on bacterial cytoplasm. Cytotoxicity assays show that carbohydrate complexes are not cytotoxic to human cells, in contrast with complex (3), which is highly toxic. These results suggest that the use of the lactose ligand would maintain the antibacterial activity and uptake mechanism of the complex at reasonable levels, and would also reduce its toxicity against human cells. Thus, its strategic use would allow a decrease in toxicity of complexes used in eventual studies on eukaryotic systems. © 2017 Sociedad Chilena de Quimica. All rights reserved.
dc.language.isoen
dc.publisherSociedad Chilena de Quimica
dc.subjectAntibacterial
dc.subjectCarbohydrate
dc.subjectCobalt
dc.subjectComplexes
dc.subjectCytotoxicity
dc.subjectPhenanthroline
dc.titleAntibacterial activity and human cell cytotoxic of cobalt (III) complexes with 1,10-phenanthroline and carbohydrate ligands
dc.typeArticle


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