We have performed laser capture microdissection with RNA microarray analysis on the invasive and non-invasive tumor cells of p53(R175H)-overexpressing OTC samples to determine candidate genes facilitating tumor invasion.
Using esophageal epithelial cells transformed by the overexpression of EGFR and p53(R175H), we find novel evidence of a functional link between p53(R175H) and the c-Met receptor tyrosine kinase to mediate tumor cell invasion.
We found that forced over-expression of p53-R175H significantly promoted cell migration and invasion, and induced activation of the epidermal growth factor receptor (EGFR)/phosphatidylinositol 3-kinase (PI3K)/AKT pathway.