Taken together, we identified a novel IFITM3-p38/MAPK-MMP9 regulatory circuitry, the dysfunction of which drives invasive and metastatic character in HCC.
Recent studies have suggested a positive feedback loop between TGFβ1 and MMP-9 mediated by the PI3K signaling pathway that confers acquired invasion and metastasis in HCC via induction of the epithelial-mesenchymal transition (EMT), which grows into invasive carcinoma.
These data demonstrate that the PKC-dependent NF-kappaB activation is absolute for MMP-9 induction and that the PKC-dependent ERK activation devotes to increase the expression level of MMP-9, in HCC cells.
The findings suggest that gelatinase B synthesized by cancer cells plays an important role in the growth and invasion of HCC by degrading surrounding extracellular matrices.
Functional experiments revealed that MTP18 promoted both the growth and metastasis of HCC cells by inducing the progression of cell cycle, epithelial to mesenchymal transition (EMT) and production of MMP-9, and suppressing cell apoptosis.
Therefore, HBV may take the advantage of MMP-9 function to establish or maintain chronic infection.<b>IMPORTANCE</b> Hepatitis B virus (HBV) infection may cause chronic hepatitis B (CHB) and hepatocellular carcinoma (HCC).
We found that expression of CD151 was positively related to metastatic potential of HCC cell lines, and modified cells with CD151(high) showed higher secretion of matrix metalloproteinase 9 and aggressiveness in vitro and higher metastatic ability in vivo.
This signal circuit was essential for regulating the expression of epithelial mesenchymal transition (EMT) factors, such as Snail, Zeb1, E-cadherin, and matrix metalloproteinase 9, involved in HCC cell migration and metastasis.
We thus demonstrate a mechanistic cascade of ATX-producing LPA with LPA activating LPA1 and inducing MMP-9 through coordinate activation of the PI3K and the p38 MPAK signaling cascades, providing novel biomarkers and potential therapeutic targets for HCC.
In this study, we aimed to investigate the expression of PRL-3 in hepatocellular carcinoma (HCC) tumor tissues and determine its correlations with matrix metalloproteinases (MMP-2, MMP-9) and E-cadherin in HCC.
Our findings indicate that S100A4 contributes to HCC metastasis by activation of NF-kB dependent MMP-9 expression, suggesting S100A4 as a novel diagnostic biomarker and therapeutic target in HCC.
The Inhibitory Effect of C-phycocyanin Containing Protein Extract (C-PC Extract) on Human Matrix Metalloproteinases (MMP-2 and MMP-9) in Hepatocellular Cancer Cell Line (HepG2).
Here we are going to determine whether GRP78 knockdown affect the ECM degradation and the role of MMP-2 and MMP-9 in these process in hepatocellular carcinoma cells.
On the other hand, the latent form of MMP-9 was found in almost equal amounts both in tumor and normal liver samples, but its active form was present only in HCC.
KIF18A may promote proliferation, invasion and metastasis of HCC cells by promoting the cell cycle signalling pathway as well as the Akt and MMP-7/MMP-9-related signalling pathways and may serve as a new target for the diagnosis and treatment of HCC.
Our data suggest that an alternative splicing event (OPN-c) promotes extracellular cleavage of OPN by MMP-9, thus releasing a distinct region of OPN (OPN-5 kDa) that is essential for HCC cellular invasion and appears to correlate with metastatic potential.
Because of its antioxidant activity and the ability to chelate divalent cations, L-carnosine (LC) was tested for inhibition of MMP-9 in a highly invasive hepatocarcinoma, SK-Hep-1 cells.
This implies that MMP-9, which was suggested as a tumor marker for hepatocellular carcinoma, would be expressed in stromal cells, rather than tumor cells.