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The growth of DU-145 human prostate carcinoma cells is reduced to 50% of control by 1 X 10(-6) M to 2 X 10(-6) M selenium and to 2% of control at 10(-4)M selenium. These cells show greater sensitivity to inhibition of growth or DNA synthesis by selenium than human W1-38 and HeLa cells and mouse mammary tumor cells. It has been shown that selenium inhibits carcinogenesis and reduces the incidence of chemical carcinogen and virus-induced tumors of a variety of organs in animals. Selenium may also inhibit the growth of certain tumor cells of non-human origin. To our knowledge, this is the first study on the effects of selenium on the growth of human tumor cells. From extrapolation, it is deduced that selenium serum levels in humans living in high selenium areas may be as high as 10(-6) M and could be effective in inhibiting the growth of tumor cells in vivo. These findings have implications in the prevention and intervention of prostate cancer in man.
M M Webber, and
E A Perez-Ripoll, and
G T James
June 1996,
Biotechnology and bioengineering,
M M Webber, and
E A Perez-Ripoll, and
G T James
November 2000,
The Prostate,
M M Webber, and
E A Perez-Ripoll, and
G T James
October 2005,
Tissue & cell,
M M Webber, and
E A Perez-Ripoll, and
G T James
April 1988,
Cancer research,
M M Webber, and
E A Perez-Ripoll, and
G T James
November 2006,
Anti-cancer drugs,
M M Webber, and
E A Perez-Ripoll, and
G T James
May 2006,
Radiation research,
M M Webber, and
E A Perez-Ripoll, and
G T James
November 1995,
Clinical & experimental metastasis,
M M Webber, and
E A Perez-Ripoll, and
G T James
July 2008,
Oncology reports,
M M Webber, and
E A Perez-Ripoll, and
G T James
March 1978,
International journal of cancer,
M M Webber, and
E A Perez-Ripoll, and
G T James
June 1994,
Biochemical and biophysical research communications,
