We utilized human tissue microarrays and different PC mouse models (Pdx1-cre; LSL- Kras<sup>(G12D)</sup>, Pdx1-Cre; LSL-Kras<sup>(G12D)</sup>; LSL-p53<sup>(R172H)</sup> and RIP1-Tag2) to analyze SEMA5A expression during PC progression.
RalA, RalB, and their major effectors RalBP1 and Sec5 were knocked down by stable expression of short hairpin RNAs in the K-Ras-dependent pancreatic cancer-derived cell line MIA PaCa-2.
Non-invasive MRI imaging showed that combination of GA and 3-BrPA inhibited pancreatic tumor and metastasis by more than 90% and significantly prolonged life span of RIP1-Tag2 transgenic pancreatic cancer mice.