Functional analyses revealed that PLOD3 interacts with STAT3, thereby expressing matrix metalloproteinases (MMP-2 and MMP-9) and with urokinase plasminogen activator (uPA) to enhance tumor metastasis.
In addition, scratch and invasion assay showed that HBC also dose-dependently suppressed migration and invasion capacities of highly metastatic HCC HepG2 cells through down-regulated the expression of tumor metastasis related proteins MMP-2 and MMP-9, significantly better than SAHA.
These results suggested that exosomal lnc-MMP2-2 might regulate the migration and invasion of lung cancer cells into the vasculature by promoting MMP2 expression, suggesting this lncRNA as a novel therapeutic target and predictive marker of tumor metastasis in lung cancer.
Treatment with the KiSS1 peptide or with a synthesis peptide with longer half-life, the FTM080, significantly inhibited cell proliferation, migration and invasion of mesothelioma cell lines; the same treatment reduced the activity of MMP-2 and MMP-9 determining consequently a marked reduction in the invasiveness of primary tumors and metastases.
Choroidal melanoma is the most common intraocular tumor in adults, and overexpression of matrix metalloproteinase-2 or matrix metalloproteinase-9 (MMP-2/MMP-9) is associated with angiogenesis and tumor metastasis of the choroidal malignant melanoma (CMM).
The expression levels of the cell apoptosis and tumor metastasis associated proteins B‑cell lymphoma 2 (Bcl‑2), Bcl‑2‑associated X protein, E‑cadherin, Twist, matrix metalloproteinase (MMP)‑9 and MMP2 were measured via western blotting.
Immunohistochemical expression was found for MMP-14 in all primary tumors as well as in all metastases and for MMP-2 expression in most of the samples.
In ATAT for the group of patients with distant metastasis (M1) the superoxide generation rate, MMP-2, 9 activities are about 2 times higher (p < 0.05) than in the subgroup without distant metastases (M0).