Ovarian Cancer and Cruciferous vegetables

Posted by Chantel Martiromo

Ovarian cancer is defined as a condition of  abnormal ovarian cells growth of ovaries.  It is one of most common cancer in US, according to the statistics adapted from the American Cancer Society's publication, Cancer Facts & Figures 2010, an estimated 21,880 women in the United States will be diagnosed with ovarian cancer, causing 3,850 deaths.
Cruciferous vegetables
Cruciferous vegetables are the group of  vegetables belonging to the family Brassicaceae, including cauliflower, cabbage, cress, bok choy, broccoli etc. A meta-analysis of observational studies in reviews of a total of 4,306 cases in 375,562 controls in 11 independent studies indicated a positive effect of consumption of Cruciferous vegetables in a reduced risk of ovarian cancer(1). Isothiocyanates, antioxidants and chemical constituent in cruciferous vegetable, inhibited the cell viability of human ovarian cancer cells, through improved antioxidant status(2). Sulforaphane, SFN the active compound in  Isothiocyanates, inhibited the human ovarian cancer cell lines through down-regulate Bcl-2 (a gene involved in anti-apoptosis) protein levels in both cell types and up- regulate the cleaved poly(ADP-ribose) polymerase (PARP) after 6 days of treatment(3). In  cell lines MDAH 2774 and SkOV-3, SFN exhibited the suppression of growth in a dose-dependent manner by reduced cell migration and increased apoptotic cell death(4).

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References
(a) Fruit and vegetable consumption and risk of epithelial ovarian cancer: the European Prospective Investigation into Cancer and Nutrition by Schulz M¹, Lahmann PH, Boeing H, Hoffmann K, Allen N, Key TJ, Bingham S, Wirfält E, Berglund G, Lundin E, Hallmans G, Lukanova A, Martínez Garcia C, González CA, Tormo MJ, Quirós JR, Ardanaz E, Larrañaga N, Lund E, Gram IT, Skeie G, Peeters PH, van Gils CH, Bueno-de-Mesquita HB, Büchner FL, Pasanisi P, Galasso R, Palli D, Tumino R, Vineis P, Trichopoulou A, Kalapothaki V, Trichopoulos D, Chang-Claude J, Linseisen J, Boutron-Ruault MC, Touillaud M, Clavel-Chapelon F, Olsen A, Tjønneland A, Overvad K, Tetsche M, Jenab M, Norat T, Kaaks R, Riboli E.(PubMed)
(b) Fruits and vegetables and ovarian cancer risk in a pooled analysis of 12 cohort studies by Koushik A¹, Hunter DJ, Spiegelman D, Anderson KE, Arslan AA, Beeson WL, van den Brandt PA, Buring JE, Cerhan JR, Colditz GA, Fraser GE, Freudenheim JL, Genkinger JM, Goldbohm RA, Hankinson SE, Koenig KL, Larsson SC, Leitzmann M, McCullough ML, Miller AB, Patel A, Rohan TE, Schatzkin A, Smit E, Willett WC, Wolk A, Zhang SM, Smith-Warner SA(PubMed).
(c) Epidemiologic evidence of the protective effect of fruit and vegetables on cancer risk by Riboli E¹, Norat T.(PubMed)
(d) Risk of ovarian carcinoma and consumption of vitamins A, C, and E and specific carotenoids: a prospective analysis by Fairfield KM¹, Hankinson SE, Rosner BA, Hunter DJ, Colditz GA, Willett WC.(PubMed)
(1) Cruciferous vegetables consumption and the risk of ovarian cancer: a meta-analysis of observational studies by Han B, Li X, Yu T(PubMed)
(2) The anti-oxidant properties of isothiocyanates: a review by de Figueiredo SM¹, Filho SA, Nogueira-Machado JA, Caligiorne RB.(PubMed)
(3) Epigallocatechin gallate and sulforaphane combination treatment induce apoptosis in paclitaxel-resistant ovarian cancer cells through hTERT and Bcl-2 down-regulation by Chen H¹, Landen CN, Li Y, Alvarez RD, Tollefsbol TO(PubMed)
(4) Sulforaphane induces cell cycle arrest by protecting RB-E2F-1 complex in epithelial ovarian cancer cells by Bryant CS¹, Kumar S, Chamala S, Shah J, Pal J, Haider M, Seward S, Qazi AM, Morris R, Semaan A, Shammas MA, Steffes C, Potti RB, Prasad M, Weaver DW, Batchu RB(PubMed).