https://www.medicinalgenomics.com/wp-content/uploads/2013/01/Resveratrol-rescues-mito-function-through-sirtuin-and-PGC-1.pdf

Resveratrol improves mitochondrial function and protects against metabolic disease by activating SIRT1 and PGC-1alpha.

AMP-activated protein kinase (AMPK) is a metabolic fuel gauge conserved along the evolutionary scale in eukaryotes that senses changes in the intracellular AMP/ATP ratio. Recent evidence indicated an important role for AMPK in the therapeutic benefits of metformin, thiazolidinediones and exercise, which form the cornerstones of the clinical management of type 2 diabetes and associated metabolic disorders. In general, activation of AMPK acts to maintain cellular energy stores, switching on catabolic pathways that produce ATP, mostly by enhancing oxidative metabolism and mitochondrial biogenesis, while switching off anabolic pathways that consume ATP. This regulation can take place acutely, through the regulation of fast post-translational events, but also by transcriptionally reprogramming the cell to meet energetic needs. Here we demonstrate that AMPK controls the expression of genes involved in energy metabolism in mouse skeletal muscle by acting in coordination with another metabolic sensor, the NAD+-dependent type III deacetylase SIRT1. AMPK enhances SIRT1 activity by increasing cellular NAD+ levels, resulting in the deacetylation and modulation of the activity of downstream SIRT1 targets that include the peroxisome proliferator-activated receptor-gamma coactivator 1alpha and the forkhead box O1 (FOXO1) and O3 (FOXO3a) transcription factors. The AMPK-induced SIRT1-mediated deacetylation of these targets explains many of the convergent biological effects of AMPK and SIRT1 on energy metabolism.

/pdf/ampk-regulates-energy-expenditure-by-modulating-nad-4ozvam9e6s.pdf

AMPK regulates energy expenditure by modulating NAD + metabolism and SIRT1 activity

Metabolic control through the PGC-1 family of transcription coactivators.

The alterations in myocardial energy substrate metabolism that occur in heart failure, and the causes and consequences of these abnormalities, are poorly understood. There is evidence to suggest th...

/pdf/myocardial-substrate-metabolism-in-the-normal-and-failing-1cql6lgwxf.pdf

Myocardial Substrate Metabolism in the Normal and Failing Heart

Mitochondria contain their own genetic system and undergo a unique mode of cytoplasmic inheritance. Each organelle has multiple copies of a covalently closed circular DNA genome (mtDNA). The entire...

http://www.biomol.it/unictbiolmol-lab/figure_didattica/R09.PhysRev88.611.pdf

Transcriptional Paradigms in Mammalian Mitochondrial Biogenesis and Function

Peroxisome Proliferator-activated Receptor Coactivator-1α (PGC-1α) Coactivates the Cardiac-enriched Nuclear Receptors Estrogen-related Receptor-α and -γ IDENTIFICATION OF NOVEL LEUCINE-RICH INTERACTION MOTIF WITHIN PGC-1α

Ryan P. Kopp

Papers

Peroxisome Proliferator-activated Receptor Coactivator-1α (PGC-1α) Coactivates the Cardiac-enriched Nuclear Receptors Estrogen-related Receptor-α and -γ IDENTIFICATION OF NOVEL LEUCINE-RICH INTERACTION MOTIF WITHIN PGC-1α