CDH1 and gastric cancer: Overall, select signal transduction alterations in c.1380delA CDH1 SB.mhdgc-1 gastric cancer cells derived from differential gene expression profiling, phosphoinositide intermediary level measures, and immunoblotting suggest perturbations in MAPK kinase pathway, phosphoinositide-mediated signaling, as well as extracellular matrix adhesion dysfunction enriched in c.1380delA CDH1 SB.mhdgc-1 gastric cancer cells compared to sporadic gastric cancer cell lines.