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  • Title: Cochinchina momordica seed suppresses proliferation and metastasis in human lung cancer cells by regulating multiple molecular targets.
    Author: Shen Y, Meng L, Sun H, Zhu Y, Liu H.
    Journal: Am J Chin Med; 2015; 43(1):149-66. PubMed ID: 25649746.
    Abstract:
    Cochinchina Momordica Seed, which is the dried ripe seed of Momordica cochinchinensis (Lour.) Spreng, has been used as a mainly anticancer ingredient for many years in China. This study aims at investigating the roles of an ethanol-soluble extract of Cochinchina Momordica Seed (ECMS) in suppressing the proliferation and metastasis of human lung cancer cells, and further elucidating underlying molecular mechanisms. Our researches suggest that ECMS dose-dependently decreased the survival rates of A549 and H1299 cells, and inhibited the migration and invasion in A549 cells. ECMS-induced apoptosis was accompanied by up-regulation of p53, Bax and the down-regulation of Bcl-2, PI-3K/Akt signal pathway, and resulted in the dissipation of mitochondrial membrane potential (ΔΨm) and sequentially activated caspase-3 cascade. Pre-treated with specific inhibitors, LY294002 (PI-3K inhibitor) and BAY11-7082 (NF-κB inhibitor) could enhance the anti-proliferation effects of ECMS on A549 cells. Furthermore, ECMS could increase the level of E-cadherin and decrease of the level of STAT-3 and MMP-2, and scarcely affected the expression of VEGF, and resulted in the inhibition of migration and invasion. Pre-treated with specific inhibitors, WP1066 (STAT-3 inhibitor) and TIMP-2 (MMP-2 inhibitor) could enhance the inhibitory effects of ECMS on migration. In conclusion, the current data demonstrated ECMS inhibited the proliferation of A549 cells by inducing apoptosis, at least partly through the activation of p53 and inactivation of PI-3K/Akt signaling. STAT-3 and MMP-2 pathways may be partly involved in anti-metastasis activities of ECMS. Hence, ECMS might be a promising candidate for the therapy of the non-small cell lung cancer by regulating multiple molecular targets.
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