IRIG: Papers in Nature about PGC-1 and Food intake

PGC-1 (PPARg coactivator 1) was identified as a transcriptional coactivator for nuclear receptor PPARg. Now, PGC-1 is known to interact with many transcription factors in the regulation of gene expression in addition to PPARg. The biological activities of PGC-1 are well-established in the promotion of hepatic gluconeogenesis and mitochondrial biosynthesis. In the regulation of gluconeogenesis in the liver, PGC-1  has been shown to promote transcription of the rate-limiting enzyme (G6Pase and PEPCK) through an interaction with transcription factors including HNF4, FOXO1 and CREB. In a recent issue of Nature, it is reported that PGC-1 does not directly interact with FOXO1 in G6Pase gene promoter, and is not required for the FOXO1 function. The PGC-1/HNF4 interaction is confirmed for their function in G6Pase expression. Attached is the PDF file.
 
         Regulation of food intake is a focus in obesity research with an expectation that the research will lead to identification of a target for drug intervention of food intake, which will be useful in prevention and treatment of obesity. However, the current understanding of the mechanism of food intake has not been able to provide an effective drug target for such a purpose. As a result, the research in this field has drawn a great deal of attention. This is reflected by the increasing number of review articles in the high profile journals in recent years. In Nature, a review about food intake is published recently (
see attached PDF file). This paper is recommended by Dr. Roy Martin at Pennington.
 
By Jianping at PBRC
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Jianping Ye, MD
Professor of Molecular Biology
Pennington Biomedical Research Center
Louisiana State University System
6400 Perkins Road
Baton Rouge, LA 70808
Phone: (225) 763-3163
Fax: (225) 763-2525
E-mail:
yej@pbrc.edu
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