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  • Title: Gluconeogenesis: re-evaluating the FOXO1-PGC-1alpha connection.
    Author: Schilling MM, Oeser JK, Boustead JN, Flemming BP, O'Brien RM.
    Journal: Nature; 2006 Oct 05; 443(7111):E10-1. PubMed ID: 17024043.
    Abstract:
    Increased expression of the gene encoding the enzyme glucose-6-phosphatase (G6Pase) contributes to the increased production of glucose by the liver that occurs in individuals with diabetes. Puigserver et al. show that the transcription factor FOXO1 and the transcriptional co-activator PGC-1alpha act synergistically to stimulate the expression of genes in the gluconeogenesis pathway and propose that PGC-1alpha acts, in part, directly through FOXO1. Here we show that FOXO1 is neither required nor sufficient for the stimulation of G6Pase-luciferase fusion gene expression by PGC-1alpha. Our results indicate that the transcriptional interaction between FOXO1 and PGC-1alpha is indirect.
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