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Phenethyl isothiocyanate suppresses EGF-stimulated SAS human oral squamous carcinoma cell invasion by targeting EGF receptor signaling.
- Source :
-
International journal of oncology [Int J Oncol] 2013 Aug; Vol. 43 (2), pp. 629-37. Date of Electronic Publication: 2013 Jun 07. - Publication Year :
- 2013
-
Abstract
- Phenethyl isothiocyanate (PEITC) is a natural compound that is involved in chemoprevention as well as inhibition of cell growth and induction of apoptosis in several types of cancer cells. Previous studies have revealed that PEITC suppresses the invasion of AGS gastric and HT-29 colorectal cancer cells. However, the effects of PEITC on the metastasis of SAS oral cancer cells remain to be determined. Our results showed that PEITC treatment inhibited the invasion of EGF-stimulated SAS cells in a concentration-dependent manner, but appeared not to affect the cell viability. The expression and enzymatic activities of matrix metalloprotease-2 (MMP-2) and matrix metalloprotease-9 (MMP-9) were suppressed by PEITC. Concomitantly, we observed an increase in the protein expression of both tissue inhibitor of metalloproteinase-1 (TIMP-1) and -2 (TIMP-2) in treated cells. Furthermore, PEITC treatments decreased the protein phosphorylation of epidermal growth factor receptor (EGFR) and downstream signaling proteins including PDK1, PI3K (p85), AKT, phosphorylated IKK and IκB to inactivate NF-κB for the suppression of MMP-2 and MMP-9 expression. In addition, PEITC can trigger the MAPK signaling pathway through the increase in phosphorylated p38, JNK and ERK in treated cells. Our data indicate that PEITC is able to inhibit the invasion of EGF-stimulated SAS oral cancer cells by targeting EGFR and its downstream signaling molecules and finally lead to the reduced expression and enzymatic activities of both MMP-2 and MMP-9. These results suggest that PEITC is promising for the therapy of oral cancer metastasis.
- Subjects :
- Carcinoma, Squamous Cell pathology
Cell Line, Tumor
Cell Survival drug effects
Epidermal Growth Factor metabolism
ErbB Receptors drug effects
Humans
I-kappa B Kinase metabolism
MAP Kinase Signaling System drug effects
Matrix Metalloproteinase 2 biosynthesis
Matrix Metalloproteinase 2 drug effects
Matrix Metalloproteinase 2 metabolism
Matrix Metalloproteinase 9 biosynthesis
Matrix Metalloproteinase 9 drug effects
Matrix Metalloproteinase 9 metabolism
Mouth Neoplasms pathology
NF-kappa B metabolism
Neoplasm Invasiveness
Phosphatidylinositol 3-Kinases metabolism
Phosphorylation drug effects
Protein Serine-Threonine Kinases metabolism
Proto-Oncogene Proteins c-akt metabolism
Pyruvate Dehydrogenase Acetyl-Transferring Kinase
Signal Transduction drug effects
Tissue Inhibitor of Metalloproteinase-1 biosynthesis
Tissue Inhibitor of Metalloproteinase-2 biosynthesis
Anticarcinogenic Agents pharmacology
Carcinoma, Squamous Cell drug therapy
ErbB Receptors metabolism
Isothiocyanates pharmacology
Mouth Neoplasms drug therapy
Subjects
Details
- Language :
- English
- ISSN :
- 1791-2423
- Volume :
- 43
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- International journal of oncology
- Publication Type :
- Academic Journal
- Accession number :
- 23754208
- Full Text :
- https://doi.org/10.3892/ijo.2013.1977