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Neoplasma Vol.57, No.5, p.383-391, 2010 |
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| Title: Selenium as a chemoprotective anti-cancer agent: Reality or wishful thinking? | ||
| Author: L. Novotny, P. Rauko, S. B. Kombian, I. O. Edafiogho | ||
| Abstract: It is generally accepted that selenium (Se) plays an important role in maintaining equilibrium of a healthy organism. It also participates in processes related to carcinogenesis such as inhibition of tumor formation and regression. Scientific data accumulated so far using experimental animal models and from clinical studies devoted to investigating the effects of Se confirm strong relationship or correlation between Se supplementation and tumor frequency of prostate, lungs, liver and colon. However, details of mechanisms of action of Se in modulation of carcinogenesis and cancer prevention are not yet fully elucidated. It is not clear yet whether Se deficiency itself is a cancer risk factor or whether it helps an already present cancer to progress. Additionally, the effects of other factors such as age, gender, life style, geographic location, comorbidities and use of drugs, are not clear. Despite the fact that some positive results were obtained with Se supplementation, it is necessary to verify these findings in more controlled experimental models including clinical studies. At the present time, data related to Se supplementation are not convincing enough as to allow general recommendation for using Se as an effective agent for chemoprevention of cancer. The goal of this minireview is to highlight present level of understanding of Se biological and prospects of its future clinical use. Information regarding Se, its effectiveness in various experimental models and in clinical tests, including combinations with other bioactive agents and anticancer drugs, is evaluated and summarized. |
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| Keywords: selenium, chemoprevention, cancer | ||
| Year: 2010, Volume: 57, Issue: 5 | Page From: 383, Page To: 391 | |
| doi:10.4149/neo_2010_05_383 |
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