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Tuesday 10 June 2014

Phytochemical Sulforaphane (Dithiolthiones) and Prostate cancer

Dithiolthiones are phytochemicals in the class of Organosulfides, found abundantly in cruciferous vegetables, garden sorrel, horseradish, etc.

Prostate cancer is defined as a condition in which the cells of prostate has become cancerous, causing abnormal cell growth which spread to the distant parts of the body. Most prostate cancers are slow growing and enlarged prostate and prostate cancer may be detected during the Physical (rectum) exams.
Oral administration of d,l-sulforaphane (SFN) can decrease the incidence or burden of early-stage prostate cancer [prostatic intraepithelial neoplasia (PIN)] and well-differentiated cancer (WDC) but not late-stage poorly differentiated cancer (PDC)., according to the University of Pittsburgh Cancer Institute and  University of Pittsburgh School of Medicine(1)
In advanced prostate cancer stem-like cells, sulforaphane showed to inhibit tumor engraftment and tumor growth, without the induction of liver necrosis or other obvious side effects, In vivo(2).
In the comparison of the effect of sulforaphane(SFN) and 3,3'-diindolylmethane(DIM) in normal prostate epithelial cells and prostate cancer cells, researchers at the Oregon State University found that SFN and DIM reversed many of the cancer-associated methylation alterations, including aberrantly methylated genes that are dysregulated or are highly involved in cancer progression(3).

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References
(1) Chemoprevention of prostate cancer by d,l-sulforaphane is augmented by pharmacological inhibition of autophagy by Vyas AR1, Hahm ER, Arlotti JA, Watkins S, Stolz DB, Desai D, Amin S, Singh SV.(PubMed)
(2) Sulforaphane and TRAIL induce a synergistic elimination of advanced prostate cancer stem-like cells by Labsch S, Liu L, Bauer N, Zhang Y, Aleksandrowicz E, Gladkich J, Schönsiegel F, Herr I.(PubMed)
(3) Effects of sulforaphane and 3,3'-diindolylmethane on genome-wide promoter methylation in normal prostate epithelial cells and prostate cancer cells by Wong CP1, Hsu A1, Buchanan A2, Palomera-Sanchez Z1, Beaver LM1, Houseman EA2, Williams DE3, Dashwood RH3, Ho E4.(PubMed)

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