Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.7.11.31 (AMP-activated protein kinase)
 13,065 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In mammals, the liver plays a central role in maintaining carbohydrate and lipid homeostasis by acting both as a major source and a major sink of glucose and lipids. In particular, when dietary carbohydrates are in excess, the liver converts them to lipids via de novo lipogenesis. The molecular checkpoints regulating the balance between carbohydrate and lipid homeostasis, however, are not fully understood. Here we identify PPP2R5C, a regulatory subunit of PP2A, as a novel modulator of liver metabolism in postprandial physiology. Inactivation of PPP2R5C in isolated hepatocytes leads to increased glucose uptake and increased de novo lipogenesis. These phenotypes are reiterated in vivo, where hepatocyte specific PPP2R5C knockdown yields mice with improved systemic glucose tolerance and insulin sensitivity, but elevated circulating triglyceride levels. We show that modulation of PPP2R5C levels leads to alterations in AMPK and SREBP-1 activity. We find that hepatic levels of PPP2R5C are elevated in human diabetic patients, and correlate with obesity and insulin resistance in these subjects. In sum, our data suggest that hepatic PPP2R5C represents an important factor in the functional wiring of energy metabolism and the maintenance of a metabolically healthy state.
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PMID:PPP2R5C Couples Hepatic Glucose and Lipid Homeostasis. 2644 Mar 64

Parkinson's disease (PD) is the second most common neurodegenerative disease. However, the expression pattern and the differential gene in different brain regions and its functions remain unclear although many studies have been reported. In this present study, PD mouse model were build and four brain regions (cerebral cortex: CC, hippocampus: HP, striatum: ST, and cerebellum: CB) were separated for RNA-seq analysis. Results showed that different expressed genes were found between the different brain regions and more differential genes found in ST and HP when compared with control groups. Among them, Lrrk2, Mtor, Gxylt1, C920006o11Rik, Vdac1, Drd4, and Ncan showed the most significant to PD. PDCC vs. PDHP, PDHP vs. PDST and PDCC vs. PDST groups have 334, 722 and 495 differentially expressed genes (DEGs), respectively. Functional analyses results showed that the differential genes mainly related with posttranscriptional regulation of gene expression and protein localization to organelle and so on, which involved in AMPK, PI3K-Akt signaling pathway, and GABA-ergic synapse. Network biology analysis showed LRRK2, DRD2, IGF-1, GNAI1, GNAI3, PRKACA, PPP2R5C, and PIK3R1 play a major role in protein regulation of PD. Therefore, HP and ST play more important roles in the development of PD and it is also suggested the potential target gene for diagnosis and treatment of PD.
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PMID:Transcriptomic profiling of differentially expressed genes and related pathways in different brain regions in Parkinson's disease. 3244 76