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 were diagnosed
with ovarian cancer, causing 3,850 deaths.
Cascara sagrada
Cascara sagrada is a species of buckthorn, genus Rhamnus,
belonging to the family Rhamnaceae, native to western North America,
it's bark has been used in traditional medicine for gastrointestinal
support. and it is thought to have a laxative and natural cleansing, etc., effect.
Emodin, a chemical compound found in the herb, inhibited drug resistant ovarian
tumor growth through increasing cellular concentration of anti cancer
drug paclitaxel and re-sensitizing the resistant cells to paclitaxel(4).
The study of the effect of tamoxifen, emodin, and plumbagin in
BRCA1(tumor suppressor genes)-blocked ER-positive BG-1 ovarian cancer
cells inhibited ovarian cancer cell line through a induced loss of
mitochondrial membrane potential (DeltaPsi(m)), nuclear condensation,
DNA fragmentation, and morphological changes(5). In human ovarian
carcinoma HO-8910PM cell lines, emodin and apigenin, induced
cytotoxicity on HO-8910PM cells, through inhibition of tumor invasion
and metastasis(6).
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References
(4) Emodin sensitizes paclitaxel-resistant human ovarian cancer cells to paclitaxel-induced apoptosis in vitro by Li J1, Liu P, Mao H, Wanga A, Zhang X.(PubMed)
(5) Antisense blocking of BRCA1 enhances sensitivity to plumbagin but not tamoxifen in BG-1 ovarian cancer cells by Srinivas G1, Annab LA, Gopinath G, Banerji A, Srinivas P.(PubMed)
(6) [Effect of emodin and apigenin on invasion of human ovarian carcinoma HO-8910PM cells in vitro].[Article in Chinese] by Zhu F1, Liu XG, Liang NC.(PubMed)
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