2024
Small molecules targeting selective PCK1 and PGC-1α lysine acetylation cause anti-diabetic action through increased lactate oxidation
Mutlu B, Sharabi K, Sohn J, Yuan B, Latorre-Muro P, Qin X, Yook J, Lin H, Yu D, Camporez J, Kajimura S, Shulman G, Hui S, Kamenecka T, Griffin P, Puigserver P. Small molecules targeting selective PCK1 and PGC-1α lysine acetylation cause anti-diabetic action through increased lactate oxidation. Cell Chemical Biology 2024, 31: 1772-1786.e5. PMID: 39341205, PMCID: PMC11500315, DOI: 10.1016/j.chembiol.2024.09.001.Peer-Reviewed Original ResearchPhosphoenolpyruvate carboxykinase 1Lysine acetylationTricarboxylic acidAnti-diabetic effectsAnaplerotic reactionsGluconeogenic reactionsLiver-specific expressionGluconeogenic metabolitesLactate oxidationSmall moleculesAnti-diabetic actionSuppressed gluconeogenesisHepatic glucose productionPGC-1aAcetylationOxaloacetateGluconeogenesisObese miceGlucose productionIncreased glucoseGlucose oxidationSubstrate oxidationOxidationGlucoseMutantsGlucagon promotes increased hepatic mitochondrial oxidation and pyruvate carboxylase flux in humans with fatty liver disease
Petersen K, Dufour S, Mehal W, Shulman G. Glucagon promotes increased hepatic mitochondrial oxidation and pyruvate carboxylase flux in humans with fatty liver disease. Cell Metabolism 2024, 36: 2359-2366.e3. PMID: 39197461, DOI: 10.1016/j.cmet.2024.07.023.Peer-Reviewed Original Research
2022
Metformin, phenformin, and galegine inhibit complex IV activity and reduce glycerol-derived gluconeogenesis
LaMoia TE, Butrico GM, Kalpage HA, Goedeke L, Hubbard BT, Vatner DF, Gaspar RC, Zhang XM, Cline GW, Nakahara K, Woo S, Shimada A, Hüttemann M, Shulman GI. Metformin, phenformin, and galegine inhibit complex IV activity and reduce glycerol-derived gluconeogenesis. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 119: e2122287119. PMID: 35238637, PMCID: PMC8916010, DOI: 10.1073/pnas.2122287119.Peer-Reviewed Original ResearchConceptsGlucose-lowering effectPlasma glucose concentrationComplex I activityHepatic gluconeogenesisType 2 diabetes mellitusGlucose concentrationGlycerol-3-phosphate dehydrogenase activityI activityDiabetes mellitusSelective inhibitionMetforminInhibitionRelevant concentrationsGluconeogenesisPhenforminVivoMost studiesDehydrogenase activityGalegineMellitus