Antioxidant Properties of a Nanostructured Clathrate Complex Selenopyran with β-Cyclodextrin in Model Systems of Oxidative Stress

Dzikovskaya, L.A.; Degtyareva, Evgeniya S.; Shegai, P. V.; Иванов, С. А.; Каприн, А. Д.

doi:10.1007/s10517-021-05204-5

Cited by 1 publication

(1 citation statement)

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“…Manisha Banerjee conceived the idea, designed the MS and wrote the initial draft of the manuscript. Dhiman Chakravarty and Prakash Selenopyran C 5 H 6 Se Treatment with this compound has shown to improve the antioxidative status in cell culture [222] Diphenylmethyl selenocyanate C 14 H 11 NSe It decreases malachite green-or cyclophos phamideinduced cellular toxicity [223] Selenoneine C 9 H 15 N 3 O 2 Se A novel selenoneine (2-selenyl-Nα,Nα,Nα-trimethyl-L-histidine) facilitates defence against methylmercury toxicity and ameliorates hepatocellular injury [162,224]…”

Section: Author Contributionmentioning

confidence: 99%

Voyage of selenium from environment to life: Beneficial or toxic?

Banerjee

Chakravarty

Kalwani

et al. 2022

J Biochem & Molecular Tox

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Selenium (Se), a naturally occurring metalloid, is an essential micronutrient for life as it is incorporated as selenocysteine in proteins. Although beneficial at low doses, Se is hazardous at high concentrations and poses a serious threat to various ecosystems. Due to this contrasting ‘dual' nature, Se has garnered the attention of researchers wishing to unravel its puzzling properties. In this review, we describe the impact of selenium's journey from environment to diverse biological systems, with an emphasis on its chemical advantage. We describe the uneven distribution of Se and how this affects the bioavailability of this element, which, in turn, profoundly affects the habitat of a region. Once taken up, the subsequent incorporation of Se into proteins as selenocysteine and its antioxidant functions are detailed here. The causes of improved protein function due to the incorporation of redox‐active Se atom (instead of S) are examined. Subsequently, the reasons for the deleterious effects of Se, which depend on its chemical form (organo‐selenium or the inorganic forms) in different organisms are elaborated. Although Se is vital for the function of many antioxidant enzymes, how the pro‐oxidant nature of Se can be potentially exploited in different therapies is highlighted. Furthermore, we succinctly explain how the presence of Se in biological systems offsets the toxic effects of heavy metal mercury. Finally, the different avenues of research that are fundamental to expand our understanding of selenium biology are suggested.

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