Curcumin mediates reversion of HGF-induced epithelial-mesenchymal transition via inhibition of c-Met expression in...

Area of Science:

• Oncology
• Molecular Biology
• Cell Biology

Background:

• The hepatocyte growth factor (HGF)/c-Met pathway drives cancer cell invasion and is implicated in prostate and colorectal cancers.
• This pathway, involving MAPK and PI3K/AKT, regulates epithelial-mesenchymal transition (EMT), a process crucial for cancer metastasis.
• The precise mechanisms linking these signaling pathways to EMT and specific kinase responses remain unclear.

Purpose of the Study:

• To investigate the role of HGF-induced EMT in DU145 prostate cancer cells.
• To determine the effect of curcumin on HGF-induced EMT and associated signaling pathways.
• To elucidate the molecular mechanisms by which curcumin inhibits HGF-induced EMT.

Main Methods:

• Induction of EMT in DU145 prostate cancer cells using HGF.
• Assessment of EMT markers, including vimentin.
• Treatment of cells with curcumin to evaluate its inhibitory effects.
• Analysis of signaling pathway components, including phosphorylated c-Met, ERK, and Snail.

Main Results:

• HGF induced EMT in DU145 cells, characterized by increased vimentin levels.
• Curcumin effectively inhibited HGF-induced DU145 cell scattering and invasion.
• Curcumin downregulated phosphorylated c-Met, extracellular signal-regulated kinase (ERK), and Snail, thereby reducing vimentin levels.

Conclusions:

• Curcumin can reverse HGF-induced EMT in DU145 prostate cancer cells.
• The mechanism involves the inhibition of c-Met signaling and downstream effectors.
• Curcumin presents a potential therapeutic strategy for targeting HGF-driven prostate cancer progression.