Objective To investigate the specific effect of silencing of Her-2 /neu gene by small interfering RNA( siRNA) on COX-2 expression and the cell biological behaviors of human pancreatic cancer cell line BXPC-3 in order to find an new therapeutic method for pancreatic cancer. Methods The expression levels of Her-2 / neu,COX-2 mRNA and proteins were detected by RT-QPCR and Western Blot in human pancreatic cancer cell lines BXPC3 and normal pancreas cell line HPDE6C7. The specific Her-2 / neu siRNA was synthesiz...