Our results suggest that abnormality of the HGF/MET pathway occurs during the course of progression from non-invasive to invasive pulmonary adenocarcinoma.     ///    " Signaling mediated by hepatocyte growth factor (HGF)/MET promotes multiple biological activities, including cell proliferation, motility, invasion, angiogenesis, and morphogenesis. "    ///    Abnormality of the hepatocyte growth factor/MET pathway in pulmonary adenocarcinogenesis.. 