Title : Kalopanaxsaponin A inhibits PMA-induced invasion by reducing matrix metalloproteinase-9 via PI3K/Akt- and PKCdelta-mediated signaling in MCF-7 human breast cancer cells.

Pub. Date : 2009 Jul

PMID : 19420016






4 Functional Relationships(s)
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1 Using specific inhibitors, we confirmed that PMA-induced cell invasion and MMP-9 expression is primarily regulated by nuclear factor-kappa B (NF-kappaB) activation via phosphatidylinositol 3-kinase (PI3K)/Akt and activator protein-1 (AP-1) activation via extracellular signal-regulated kinase (ERK)1/2. Tetradecanoylphorbol Acetate JunB proto-oncogene, AP-1 transcription factor subunit Homo sapiens
2 Using specific inhibitors, we confirmed that PMA-induced cell invasion and MMP-9 expression is primarily regulated by nuclear factor-kappa B (NF-kappaB) activation via phosphatidylinositol 3-kinase (PI3K)/Akt and activator protein-1 (AP-1) activation via extracellular signal-regulated kinase (ERK)1/2. Tetradecanoylphorbol Acetate JunB proto-oncogene, AP-1 transcription factor subunit Homo sapiens
3 KPS-A decreased PMA-induced transcriptional activation of NF-kappaB and AP-1 and inhibited PMA-induced phosphorylation of ERK1/2 and Akt. Tetradecanoylphorbol Acetate JunB proto-oncogene, AP-1 transcription factor subunit Homo sapiens
4 These results suggest that KPS-A inhibits PMA-induced invasion by reducing MMP-9 activation, mainly via the PI3K/Akt/NF-kappaB and PKCdelta/ERK/AP-1 pathways in MCF-7 cells and blocks tumor growth and MMP-9-mediated invasiveness in mice with breast carcinoma. Tetradecanoylphorbol Acetate JunB proto-oncogene, AP-1 transcription factor subunit Homo sapiens