食品科学

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羊肚菌多糖抑制人乳腺癌细胞MDA-MB-231增殖和诱导细胞凋亡研究

李 谣1,陈金龙1,王丽颖1,张月巧1,吴素蕊2,明 建1,3,*   

  1. 1.西南大学食品科学学院,重庆 400715;2.中华全国供销合作总社昆明食用菌研究所,云南 昆明 650223;
    3.西南大学 国家食品科学与工程实验教学中心,重庆 400715
  • 出版日期:2016-11-15 发布日期:2016-11-18

Polysaccharides from Morchella angusticeps Peck Inhibit Cell Proliferation and Induce Apoptosis in MDA-MB-231 Human Breast Cancer Cells

LI Yao1, CHEN Jinlong1, WANG Liying1, ZHANG Yueqiao1, WU Surui2, MING Jian1,3,*   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China;
    2. Kunming Edible Fungi Institute, All China Federation of Supply and Marketing Cooporatives, Kunming 650223, China;
    3. National Food Science and Engineering Experimental Teaching Center, Southwest University, Chongqing 400715, China
  • Online:2016-11-15 Published:2016-11-18

摘要:

以黑脉羊肚菌多糖为原料,研究羊肚菌多糖对人乳腺癌细胞MDA-MB-231(以下简称MDA)增殖和凋亡的影响。结果表明:在无细胞毒性范围内,羊肚菌多糖能显著抑制人乳腺癌细胞MDA的增殖,半数有效浓度(median effective concentration,EC50)值为0.096 mg/mL,同时人乳腺癌细胞MDA表现出多种细胞凋亡的形态学变化。免疫印迹检测实验结果显示,羊肚菌多糖能抑制B淋巴细胞瘤-2(B-cell lymphoma-2,Bcl-2)蛋白表达,促进Bcl-2相关X蛋白(Bcl-2 associated X protein,Bax)表达,同时增加Bax/Bcl-2蛋白表达比值,并呈现出剂量依赖效应。说明羊肚菌多糖能抑制人乳腺癌细胞MDA增殖,促进细胞凋亡。

关键词: 羊肚菌, 多糖, 人乳腺癌细胞MDA-MB-231, 细胞增殖, 细胞凋亡

Abstract:

The effects of polysaccharides from Morchella angusticeps Peck (PMEP) on the proliferation and apoptosis of
MDA-MB-231 human breast cancer cells were investigated in this study. The results showed that PMEP could significantly
inhibit the proliferation of MDA-MB-231 in the non-cytotoxic concentration range with a median effective concentration
(EC50) of 0.096 mg/mL. MDA-MB-231 cells also showed a series of morphological changes associated with apoptosis.
Western blotting assay showed that PMEP could inhibit the expression of B-cell lymphoma-2 (Bcl-2) protein, increase the
expression of Bcl-2 associated X protein (Bax) and Bax/Bcl-2 ratio in a dose-dependent manner. In conclusion, PMEP could
inhibit the proliferation and induce the apoptosis of MDA-MB-231 cells.

Key words: Morchella esculenta, polysaccharide, MDA-MB-231 human breast cancer cell, cell proliferation, cell apoptosis

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