Polyphenol-rich seaweed (Eucheuma cottonii) extract suppresses breast tumour via hormone modulation and apoptosis induction

被引:115
作者
Namvar, Farideh [1 ,6 ]
Mohamed, Suhaila [1 ]
Fard, Samaneh Ghasemi [1 ]
Behravan, Javad [5 ]
Mustapha, Noordin M. [2 ]
Alitheen, Noorjahan Banu M. [3 ]
Othman, Fauziah [4 ]
机构
[1] Univ Putra Malaysia, Fac Food Sci & Technol, Inst Biosci IBS UPM, Serdang 43444, Selangor, Malaysia
[2] Univ Putra Malaysia, Fac Vet Med, Serdang 43444, Selangor, Malaysia
[3] Univ Putra Malaysia, Fac Biotechnol & Biomol Sci, Serdang 43444, Selangor, Malaysia
[4] Univ Putra Malaysia, Fac Med & Hlth Sci, Serdang 43444, Selangor, Malaysia
[5] Mashhad Univ Med Sci, Sch Pharm, Miotechnol Res Ctr, Mshhad, Iran
[6] Islamic Azad Univ Med Sci, Fac Med, Mashhad, Iran
关键词
Antioxidant enzymes; Breast neoplasm; Anti-oestrogen; Seaweed; Apoptosis; BROWN; ANTIOXIDANT; JAPANESE; IODINE; COLON; WOMEN;
D O I
10.1016/j.foodchem.2011.07.054
中图分类号
O69 [应用化学];
学科分类号
070301 [无机化学];
摘要
The edible red seaweed Eucheuma cottonii is abundantly cultivated for carrageenan production. This study investigated the effects of dietary E. cottonii polyphenol-rich extract (ECME) on breast cancer. In vitro assays showed that ECME was antiproliferative against oestrogen-dependent MCF-7 and oestrogen-independent MB-MDA-231 human breast-cancer cells (IC50 values of 20 and 42 mu g/ml, respectively) but was non-toxic to normal cell lines. The ECME (150 and 300 mg/kg BW) was fed to female rats and, after 4 weeks, rat mammary tumour was induced using LA7 cells (inoculated subcutaneously). The ECME inhibited tumour development and erythrocyte lipid peroxidation in the cancer-induced rats, dose-dependently. It showed anti-oestrogenic effects on the rat estrous cycle and serum hormone levels. Electron microscopy and histopathology observations confirmed apoptosis in the rat mammary tumours. The polyphenol-rich ECME was tumour-suppressive via apoptosis induction, downregulating the endogenous oestrogen biosynthesis, and improving antioxidative status in the rats. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:376 / 382
页数:7
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