"This is the first report that PGE2 -induced uPAR expression which stimulates invasiveness of human gastric cancer AGS cells is mediated by the EP2 receptor-dependent Src/EGFR/JNK1/2 Erk1/2/AP-1 and Src/EGFR/JNK1/2 Erk1/2/NF-kappaB cascades."xsd:string