Article Publish Status: FREE
Abstract Title:

Garcinone E induces apoptosis and inhibits migration and invasion in ovarian cancer cells.

Abstract Source:

Sci Rep. 2017 Sep 6 ;7(1):10718. Epub 2017 Sep 6. PMID: 28878295

Abstract Author(s):

Xiao-Huang Xu, Qian-Yu Liu, Ting Li, Jian-Lin Liu, Xin Chen, Li Huang, Wen-An Qiang, Xiuping Chen, Yitao Wang, Li-Gen Lin, Jin-Jian Lu

Article Affiliation:

Xiao-Huang Xu


Ovarian cancer remains the most lethal gynecological malignant tumor. In this study, 24 xanthones were isolated and identified from the pericarps of mangosteen (Garcinia mangostana), and their anti-proliferative activities were tested in ovarian cancer cells. Garcinone E (GE) was found to exhibit excellent anti-proliferative effects among the tested xanthones. It significantly inhibited the proliferation in HEY, A2780, and A2780/Taxol cells as evidenced by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, lactate dehydrogenase (LDH) release assay, Hoechst 33342 staining, annexin V/PI staining, and JC-1 staining. It induced endoplasmic reticulum (ER) stress and activated the protective inositol-requiring kinase (IRE)-1α pathway. Knocking down IRE-1α further activated the caspase cascade and caused an increase in cell death. Moreover, GE eliminated the migratory ability of HEY cells by reducing the expression of RhoA and Rac. It also blocked the invasion, which might be related to downregulation of matrix metalloproteinases (MMPs), i.e., MMP-9 and MMP-2, and upregulation of tissue inhibitors of metalloproteinase (TIMP) -1 and TIMP-2. In summary, GE exerts anticancer activities by inducing apoptosis and suppressing migration and invasion in ovarian cancer cells, which indicates its therapeutic potential forovarian cancer.

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