nm23‐H1 reduces in vitro cell migration and the liver metastatic potential of colon cancer cells by regulating myosin light chain phosphorylation

Open Access
Publisher Website
Google Scholar
Abstract
The nm23‐H1 gene is known as a potential metastasis suppressor gene in various types of carcinomas. However, the role of nm23‐H1 in colorectal carcinoma still remains controversial and the cellular mechanisms by which its protein may modulate the metastatic phenotype are not yet known. We transfected nm23‐H1 cDNA into the human colon cancer cell line, HT‐29, to test the effects and cellular biological mechanism of nm23 protein in colon cancer. We found that nm23‐H1 strongly inhibited the liver metastasis of HT‐29 cells in nude mice and inhibited the epidermal growth factor (EGF)‐induced cell migration in vitro. Furthermore, we clarified the regulation of the myosin light chain (MLC) phosphorylation by nm23‐H1, which has been demonstrated as having potential role in cell migration.