Prevention of selenite induced oxidative stress and cataractogenesis by luteolin isolated from Vitex negundo

Rooban, B.N.; Sasikala, V.; Devi, V. Gayathri; Sahasranamam, V.; Abraham, Annie

doi:10.1016/j.cbi.2012.01.005

Cited by 46 publications

(25 citation statements)

References 28 publications

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“…It was previously observed that the imposition of mechanochemical stress on osteoblastic MC3T3-E1 cells can have an augmentative effect on the expression of osteogenic markers 75 . Although it can have a protective, antioxidative effect on cells under attack of different species 76 , selenite is an oxygen specie that itself can exert an oxidative stress on the cells 77,78 and such form of stress has been shown to be capable of leading to increased bone production in osteoblastic cells 79 . Mitochondria are tightly related to oxidative stress, which is essential to their function in spite of leading to permanent cell damage and/or cell death if excessive 80 .…”

Section: Resultsmentioning

confidence: 99%

One ion to rule them all: the combined antibacterial, osteoinductive and anticancer properties of selenite-incorporated hydroxyapatite

Uskoković

Iyer

2017

J. Mater. Chem. B

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Although hydroxyapatite (HAp) has been doped with dozens of different ions, the quest for an ion imparting a combination of properties conducive to bone healing is still ongoing. Because of its protean potency and the similarity in size and shape to the phosphate tetrahedron, selenite ion presents a natural ionic substitute in HAp. The incorporation of selenite into synthetic HAp using two different methods – co-precipitation and ion-exchange sorption - was studied for its effect on crystal properties and on a triad of biological responses: antibacterial, anticancer and osteoinductive. Co-precipitation yielded HAp with higher selenite contents than sorption and the stoichiometry of HAp richest in selenite was represented as Ca9.75(PO4)5.75(SeO3)0.25(OH)1.75. Crystallinity of HAp decreased in direct proportion with the amount of selenite incorporated. Because of their lower selenite content, HAp powders prepared by ion-exchange exhibited a consistently higher crystallinity compared to the co-precipitated ones. Annealing partially recovered the crystallinity, yet the difference in crystallinity between powders prepared by co-precipitation and by ion-exchange remained, suggesting that the amorphization is mainly due to structural incorporation of selenite, not its effect on the crystal growth kinetics. The addition of selenite changed the morphology of HAp nanoparticles from acicular to rounded and affected the crystal lattice parameters in different ways depending on whether the powders were annealed or not. As for the annealed powders, the incorporation of selenite contracted the lattice in both a and c crystallographic directions. In the agar diffusion assay, the effectiveness of HAp was more dependent on the presence or absence of selenite in it than on its concentration and was highest against E. coli and S. aureus, moderately high against S. enteritidis and ineffective against P. aeruginosa. In liquid inoculation tests, on the other hand, the antibacterial activity of HAp was directly proportional to the amount of selenite contained in it. The viability of K7M2 osteosarcoma cells decreased in direct proportion with the amount of selenite in HAp and was significantly different from the untreated control and from pure HAp at contents equal to or higher than 1.9 wt.%. In contrast, no reduction was observed in the viability of primary fibroblasts treated with HAp incorporating different amounts of selenite ions, suggesting their potentially selective anticancer activity: lethal for the cancer cells and harmless for the healthy cells. Finally, mRNA expression of bone gamma-carboxyglutamate protein (BGLAP3) was higher in differentiated MC3T3-E1 osteoblastic cells treated with selenite-incorporated HAp particles than in cells treated with pure HAp. The osteoinductive effect was due to an overall higher metabolic activity of cells treated with the particles and not due to increased proliferation. In such a way, a triad of antibacterial, osteoinductive and anticancer activities was attributed to selenite-incorporated ...

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Section: Resultsmentioning

confidence: 99%

One ion to rule them all: the combined antibacterial, osteoinductive and anticancer properties of selenite-incorporated hydroxyapatite

Uskoković

Iyer

2017

J. Mater. Chem. B

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“…CAT is responsible for degrading hydrogen peroxide to water and oxygen, while SOD eliminates superoxide radical species by catalyzing its dismutation to oxygen and hydrogen peroxide. Selenite induced oxidative stress leads to decreased activity of these enzymes in the lens 39,42 . The antioxidant GSH is present in high levels in the lens of the control group, maintaining protein thiol groups in the reduced state and preventing the cross linking of soluble crystallins.…”

Section: Discussionmentioning

confidence: 99%

Ocular delivery of cyanidin-3-glycoside in liposomes and its prevention of selenite-induced oxidative stress

Zhang

Liang

et al. 2015

Drug Development and Industrial Pharmacy

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“…Among them, phenolic compounds, including flavonoids, iridoids, and phenolic acids, are considered to be the main active compounds, which have various bioactivities, such as anti-inflammation, anti-arthritis and antiviral properties [11][12][13][14]. However, no quantitative marker has been selected for quality control of this plant in the Chinese Pharmacopeia, except ␤-caryophyllene for its essential oils, which severely restricting its clinical application and in-depth study.…”

Section: Introductionmentioning

confidence: 97%

Identification and quantification of phenolic compounds in Vitex negundo L. var. cannabifolia (Siebold et Zucc.) Hand.-Mazz. using liquid chromatography combined with quadrupole time-of-flight and triple quadrupole mass spectrometers

Huang

Zhang

et al. 2015

Journal of Pharmaceutical and Biomedical Analysis

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Prevention of selenite induced oxidative stress and cataractogenesis by luteolin isolated from Vitex negundo

Cited by 46 publications

References 28 publications

One ion to rule them all: the combined antibacterial, osteoinductive and anticancer properties of selenite-incorporated hydroxyapatite

One ion to rule them all: the combined antibacterial, osteoinductive and anticancer properties of selenite-incorporated hydroxyapatite

Ocular delivery of cyanidin-3-glycoside in liposomes and its prevention of selenite-induced oxidative stress

Identification and quantification of phenolic compounds in Vitex negundo L. var. cannabifolia (Siebold et Zucc.) Hand.-Mazz. using liquid chromatography combined with quadrupole time-of-flight and triple quadrupole mass spectrometers

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