Abstract
Selenium is a trace element, nutritionally classified as an essential micronutrient,
involved in maintaining the correct function of several enzymes incorporating the selenocysteine
residue, namely the selenoproteins. The human selenoproteome including 25 proteins is
extensively described here. The most relevant selenoproteins, including glutathione peroxidases,
thioredoxin reductases and iodothyronine deiodinases are required for the proper cellular
redox homeostasis as well as for the correct thyroid function, thus preventing oxidative
stress and related diseases. This review summarizes the main advances on oxidative stress
with a focus on selenium metabolism and transport. Moreover, thyroid-related disorders are
discussed, considering that the thyroid gland contains the highest selenium amount per gram
of tissue, also for future possible therapeutic implication.
Keywords:
Deiodinases, oxidative stress, redox homeostasis, selenium, selenoproteins, thyroid dysfunction.
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Gladyshev, V.N.; Arnér, E.S.; Berry, M.J.; Brigelius-Flohé, R.; Bruford, E.A.; Burk, R.F.; Carlson, B.A.; Castellano, S.; Chavatte, L.; Conrad, M.; Copeland, P.R.; Diamond, A.M.; Driscoll, D.M.; Ferreiro, A.; Flohé, L.; Green, F.R.; Guigó, R.; Handy, D.E.; Hatfield, D.L.; Hesketh, J.; Hoffmann, P.R.; Holmgren, A.; Hondal, R.J.; Howard, M.T.; Huang, K.; Kim, H.Y.; Kim, I.Y.; Köhrle, J.; Krol, A.; Kryukov, G.V.; Lee, B.J.; Lee, B.C.; Lei, X.G.; Liu, Q.; Lescure, A.; Lobanov, A.V.; Loscalzo, J.; Maiorino, M.; Mariotti, M.; Sandeep Prabhu, K.; Rayman, M.P.; Rozovsky, S.; Salinas, G.; Schmidt, E.E.; Schomburg, L.; Schweizer, U.; Simonović, M.; Sunde, R.A.; Tsuji, P.A.; Tweedie, S.; Ursini, F.; Whanger, P.D.; Zhang, Y. Selenoprotein gene nomenclature.
J. Biol. Chem., 2016,
291(46), 24036-24040.
[
http://dx.doi.org/10.1074/jbc.M116.756155] [PMID:
27645994]
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