Application of Sodium Selenite in the Prevention and Treatment of Cancers
AbstractSelenium is an essential trace element that occurs in nature, in both inorganic and organic forms. This element participates in numerous biochemical processes, including antioxidant potential, but the mechanism of its anti-cancer action is still not well known. It should be noted that the anti-cancer properties of selenium depends on its chemical form, therapeutic doses, and the tumor type. Higher nutritional doses of selenium can stimulate human immune system. There are several hypotheses concerning the anticancer activity of selenium, including oxidation of sulfhydryl groups in proteins causing their conformational alterations. Conformational changes in proteins have the ability to weaken the activity of enzymes involved in the metabolism of cancer cells. In case of human fibrinogen sodium selenite, but not selenate, it inhibits protein disulfide exchange reactions, thus preventing formation of a hydrophobic polymer termed parafibrin, circulatory accumulation, of which is associated with numerous degenerative diseases. Parafibrin can specifically form a protein coat around tumor cells that is completely resistant to degradation induced with lymphocyte protease. In this way, cancer cells become protected against destruction by the organism’s immune system. Other possible mechanisms of anticancer action of selenium are being still investigated. View Full-Text
Share & Cite This Article
Kieliszek, M.; Lipinski, B.; Błażejak, S. Application of Sodium Selenite in the Prevention and Treatment of Cancers. Cells 2017, 6, 39.
Kieliszek M, Lipinski B, Błażejak S. Application of Sodium Selenite in the Prevention and Treatment of Cancers. Cells. 2017; 6(4):39.Chicago/Turabian Style
Kieliszek, Marek; Lipinski, Boguslaw; Błażejak, Stanisław. 2017. "Application of Sodium Selenite in the Prevention and Treatment of Cancers." Cells 6, no. 4: 39.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.