Journal
BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE
Volume 16, Issue -, Pages -Publisher
BMC
DOI: 10.1186/s12906-016-1404-6
Keywords
Euphorbia humifusa Willd; Invasion; Metastasis; Matrix metalloproteinase-9; Tumor necrosis factor alpha; Nuclear factor-kappa B
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Funding
- Agenda program (RDA) from the Rural Development Administration [PJ010484]
- Priority Research Centers Program through the National Research Foundation of Korea - Ministry of Education, Science and Technology [NRF-2009-0093824]
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Background: Breast cancer is the most common type of malignancy in women worldwide. Euphorbia humifusa Willd (EuH) is a plant that is widely used as a traditional medicine. However, no systemic studies on the anti-cancer effects of EuH have been reported. The aim of this study is to evaluate the anti-metastatic effect of the EuH. Methods: Ethyl acetate fraction was prepared from EuH methanol extracts (EA/EuH). Inhibitory effect of EA/EuH on cell migration was determined using an in vitro scratch-wound healing assay. The anti-invasive activity was determined by in vitro three-dimensional spheroid culture system and in vivo syngenic experimental lung metastasis experiment. Gene expression profiles were analyzed by using RT-PCR, real-time PCR, and luciferase reporter assay systems. Results: Ethyl acetate fraction from the EuH extract (EA/EuH) inhibited the migration and invasive capabilities of highly metastatic MDA-MB-231 breast cancer cells and attenuated syngeneic lung metastasis of mouse 4 T1 breast cancer cells in vivo. Mechanistically, EA/EuH decreased tumor necrosis factor alpha (TNF alpha)-induced matrix metalloproteinase (MMP)-9 mRNA expression through the inhibition of NF-kappa B activity in MDA-MB-231 cells. Conclusion: EuH may be beneficial in the prevention of invasion and metastasis of early stage breast cancer and can be served as an anti-metastatic agent or adjuvant therapy against metastatic breast cancer.
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