期刊
INORGANICS
卷 10, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/inorganics10040050
关键词
Schiff base vanadium-catechol complexes; Mycobacteria; speciation; NMR spectroscopy; UV-Vis spectroscopy; growth inhibition; tuberculosis
资金
- Arthur Cope Foundation
- Colorado State University
A major problem in patient treatments involving anticancer compounds is the occurrence of bacterial infections. This study investigated the growth effects of an anticancerous oxidovanadium(V) complex on a representative bacterium, Mycobacterium smegmatis. The study found that the observed effects of the V-catecholate complex on bacterial growth are a combination of catechol properties including toxicity, hydrophobicity, and sterics.
A major problem with patient treatments using anticancer compounds is accompanying bacterial infections, which makes more information on how such compounds impact bacterial growth desirable. In the following study, we investigated the growth effects of an anticancerous non-toxic Schiff base oxidovanadium(V) complex (N-(salicylideneaminato)-N '-(2-hydroxyethyl)ethane-1,2-diamine) coordinated to the 3,5-di-tert-butylcatecholato ligand on a representative bacterium, Mycobacterium smegmatis (M. smeg). We prepared the Schiff base V-complexes as reported previously and selected a few complexes to develop a V-complex series. Biological studies of M. smeg growth inhibition were complemented by spectroscopic studies using UV-Vis spectrophotometry and NMR spectroscopy to determine which complexes were intact under biologically relevant conditions. We specifically chose to examine (1) the growth effects of Schiff base oxidovanadium complexes coordinated to a catechol, (2) the growth effects of respective free catecholates on M. smeg, and (3) to identify complexes where the metal coordination complex was more potent than the ligand alone under biological conditions. Results from these studies showed that the observed effects of Schiff base V-catecholate complex are a combination of catechol properties including toxicity, hydrophobicity, and sterics.
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