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Grifola frondosa Glycoprotein GFG-3a Arrests S phase, Alters Proteome, and Induces Apoptosis in Human Gastric Cancer Cells

文献类型： 外文期刊

作者： Cui, Fengjie 1 ; Zan, Xinyi 1 ; Li, Yunhong 1 ; Sun, Wenjing 1 ; Yang, Yan 3 ; Ping, Lifeng 4 ;

作者机构： 1.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China

2.Jiangxi Prov Engn & Technol Ctr Food Addit Biopro, Dexing, Peoples R China

3.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Shanghai, Peoples R China

4.Zhejiang Acad Agr Sci, Inst Qual & Standard Agroprod, MOA Key Lab Pesticide Residue Detect, State Key Lab Breeding Base Qual & Safety Agropro, Hangzhou, Zhejiang, Peoples R China

5.Zhejiang Univ Sci & Technol, Sch Civil Engn & Architecture, Hangzhou, Zhejiang, Peoples R China

期刊名称：NUTRITION AND CANCER-AN INTERNATIONAL JOURNAL （ 影响因子：2.9； 五年影响因子：3.144 ）

ISSN： 0163-5581

年卷期： 2016 年 68 卷 2 期

页码：

收录情况： SCI

摘要： GFG-3a is a novel glycoprotein previously purified from the fermented mycelia of Grifola frondosa with novel sugar compositions and protein sequencing. The present study aims to investigate its effects on the cell cycle, differential proteins expression, and apoptosis of human gastric cancer SGC-7901 cells. Our findings revealed that GFG-3a induced the cell apoptosis and arrested cell cycle at S phase. GFG-3a treatment resulted in the differential expression of 21 proteins in SGC-7901 cells by upregulating 10 proteins including RBBP4 associated with cell cycle arrest and downregulating 11 proteins including RUVBL1, NPM, HSP90AB1, and GRP78 involved in apoptosis and stress response. qRT-PCR and Western blot analysis also suggested that GFG-3a could increase the expressions of Caspase-8/-3, p53, Bax, and Bad while decrease the expressions of Bcl2, Bcl-xl, PI3K, and Akt1. These results indicated that the stress response, p53-dependent mitochondrial-mediated, Caspase-8/-3-dependent, and PI3k/Akt pathways were involved in the GFG-3a-induced apoptosis process in SGC-7901 cells. These findings might provide a basis to prevent or treat human gastric cancer with GFG-3a and understand the tumor-inhibitory molecular mechanisms of mushroom glycoproteins.

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