Project description:The in vivo function of AGR2 was examined by generating an AGR2 null mouse. The mice died prematurely due to hyperplasia and dysplasia of the glandular stomach. Gene expression profiling was performed to compare differences in transcription between wild-type and null AGR2 mice.
Project description:We performed expression profiling of prostates of 3 month wild-type and PTEN NULL mice and assessed the response to 3 days of castration.
Project description:We performed shotgun proteomic analysis of type V collagens purified from wild-type mice and prolyl 3-hydroxylase 3 or lysyl hydroxylase 1 null mice by LC-MS after trypsin digestion for identification of lysine glycosylation sites.
Project description:We previously reported LATS2 null mice (Yabuta et al., 2007). LATS2 known as a tumor suppressor protein. However, the LATS2 mediated transcriptional regulation remains largely unknown. To investigate potential signaling pathways, we performed the expression profiling by using primary MEFs derived from wild type and LATS2 null mice.
Project description:Regulation between the fed and fasted state in mammals is partially controlled by peroxisome proliferator activated receptor-alpha (PPAR-alpha). Expression of the receptor is high in liver, heart and skeletal muscle, but decreases with age. A combined 1H NMR spectroscopy and GC-MS metabolomic approach has been used to examine metabolism in liver, heart, skeletal muscle and adipose tissue in PPAR-alpha null mice and wild type controls during ageing between 3-13 months. For the PPAR-alpha-null mouse multivariate statistics highlighted hepatic steatosis, reductions in the concentrations of glucose and glycogen in both liver and muscle tissue, and profound changes in lipid metabolism in each tissue, reflecting known expression targets of the PPAR-alpha receptor. Hepatic glycogen and glucose also decreased with age for both genotypes. These findings indicate the development of age related hepatic steatosis in the PPAR-alpha-null mouse, with the normal metabolic changes associated with ageing exacerbating changes associated with genotype. Furthermore, the combined metabolomic and multivariate statistics approach provides a robust method for examining the interaction between age and genotype. </p> The GC-MS assay for this study can be found in the MetaboLights study MTBLS314.
Project description:To clarify the mechanism underlying the proliferation of hepatocytes induced by PPARA agonists, expression profiling in liver of wild type and Ppara-null mice treated with PPARA agonist was investigated.