Analysis of differential genetic expression by moderate-carbohydrate restriction diet with calorie restriction mimetic multiple phytochemicals (MCDmp) using a transgenic liver cancer model developed by a simple hydrodynamic transfection method.

We performed survival analysis of control and MCDmp groups, and explored underlying tumor suppression mechanisms after dietary intervention, focused on alterations in the energy-dependent signaling pathways, and global gene expression differences on cDNA microarray study. Five- week- old male C57BL6 mice were randomly divided into two groups and fed control diet (control group, LabDiet, Brentwood, MO, USA) or MCDmp formula (Treat group) in a specific pathogen free zone. All procedures were approved by the institutional animal use and care committee. Following a preliminary feeding of each diet formula for two week, HrasG12V / shp53 / GFP4 gene containing transposon vector were injected into mouse tail vein by hydrodynamic injection method. After 4 weeks of diet supplementation, all mice were sacrificed. Mouse liver tissue was excised for microarray analysis.