Abstract:
ETHNOPHARMACOLOGICAL RELEVANCE:Triple-negative breast cancer (TNBC) often presents with a high histological grade and high malignancy, which greatly contribute to patient morbidity and mortality. Rhizoma Amorphophalli exhibits many biological and pharmacological activities, but its potential as a therapeutic agent for the treatment of metastatic TNBC patients remains poorly understood. AIM OF THE STUDY:The aim of this study was to determine whether Rhizoma Amorphophalli inhibits metastasis in the human TNBC MDA-MB-231 cell line. MATERIALS AND METHODS:CCK-8 and colony formation assays were adopted for the analysis of cell activity and cell proliferation, respectively. Flow cytometry was used for cell cycle analysis. Wound healing and transwell assays were performed to assess cell migration and invasion, respectively. PI3K/Akt/mTOR signaling pathways were analyzed through western blotting. Breast cancer cell metastasis to the lung in a xenograft model was evaluated by in vivo fluorescence imaging. A GC-MS analysis was performed to determine the main components of the petroleum ether fraction from the ethanol extract of Rhizoma Amorphophalli (abbreviated RhA). RESULTS:RhA significantly reduced breast cancer cell viability and proliferation. The flow cytometry analysis indicated that RhA induced MDA-MB-231 cell arrest at the S phase. Additionally, RhA decreased MDA-MB-231 cell migration and invasion and inhibited the PI3K/Akt/mTOR signaling pathway. In addition, mice treated with RhA exhibited a significant reduction in tumor infiltration and a decrease in breast cancer cell metastasis to the lung. The GC-MS analysis results showed that RhA contained a large number of unsaturated fatty acids, such as octadecadienoic acid (linoleic acid), octadecatrienoic acid (linolenic acid), and oleate, which might represent the anticancer components of the extract. CONCLUSIONS:The results of this study suggest that RhA has potential as a therapeutic candidate for metastatic TNBC treatment.
journal_name
J Ethnopharmacoljournal_title
Journal of ethnopharmacologyauthors
Wu C,Qiu S,Liu P,Ge Y,Gao Xdoi
10.1016/j.jep.2017.09.033subject
Has Abstractpub_date
2018-01-30 00:00:00pages
89-100eissn
0378-8741issn
1872-7573pii
S0378-8741(17)32515-1journal_volume
211pub_type
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