2024
1637-P: TLC-6740, a Liver-Targeted Mitochondrial Protonophore, Increases Energy Expenditure and Lipid Utilization in Obese Mice
SRODA N, VIJAYAKUMAR A, MURAKAMI E, WENG S, SHULMAN G, MYERS R, SUBRAMANIAN M. 1637-P: TLC-6740, a Liver-Targeted Mitochondrial Protonophore, Increases Energy Expenditure and Lipid Utilization in Obese Mice. Diabetes 2024, 73 DOI: 10.2337/db24-1637-p.Peer-Reviewed Original ResearchEnergy intakeWeight lossEnergy expenditureRespiratory exchange ratioMitochondrial protonophoreObese miceDose-dependent weight lossReduced oral intakeData support evaluationDays of dosingC57 BL/6 miceDiet-induced obese miceNegative energy balanceMale C57 BL/6 miceIncreased energy expenditureWhole-body lipid utilizationCompared to pre-treatmentHigh-fat dietOral intakePO BIDBL/6 miceIndirect calorimetryMetabolic benefitsLipid utilizationVEH
2022
Sex‐ and strain‐specific effects of mitochondrial uncoupling on age‐related metabolic diseases in high‐fat diet‐fed mice
Goedeke L, Murt KN, Di Francesco A, Camporez JP, Nasiri AR, Wang Y, Zhang X, Cline GW, de Cabo R, Shulman GI. Sex‐ and strain‐specific effects of mitochondrial uncoupling on age‐related metabolic diseases in high‐fat diet‐fed mice. Aging Cell 2022, 21: e13539. PMID: 35088525, PMCID: PMC8844126, DOI: 10.1111/acel.13539.Peer-Reviewed Original ResearchConceptsControlled-release mitochondrial protonophoreAge-related metabolic diseasesHepatocellular carcinomaMetabolic diseasesHigh-fat diet-fed miceProtein kinase C epsilon activationDiet-induced obese miceWhole-body energy expenditureC57BL/6J male miceDiet-fed miceHigh-fat dietHepatic lipid peroxidationHepatic lipid contentMitochondrial uncouplingHepatic insulin resistanceHigh therapeutic indexHepatic mitochondrial biogenesisStrain-specific effectsSex-specific mannerCRMP treatmentHFD feedingUnwanted side effectsObese miceInsulin resistanceChronic ingestion
2021
Isthmin-1 is an adipokine that promotes glucose uptake and improves glucose tolerance and hepatic steatosis
Jiang Z, Zhao M, Voilquin L, Jung Y, Aikio MA, Sahai T, Dou FY, Roche AM, Carcamo-Orive I, Knowles JW, Wabitsch M, Appel EA, Maikawa CL, Camporez JP, Shulman GI, Tsai L, Rosen ED, Gardner CD, Spiegelman BM, Svensson KJ. Isthmin-1 is an adipokine that promotes glucose uptake and improves glucose tolerance and hepatic steatosis. Cell Metabolism 2021, 33: 1836-1852.e11. PMID: 34348115, PMCID: PMC8429235, DOI: 10.1016/j.cmet.2021.07.010.Peer-Reviewed Original ResearchConceptsFatty liver diseaseAdipose glucose uptakeGlucose toleranceLiver diseaseHepatic steatosisGlucose uptakeDiet-induced obese miceImpaired glucose toleranceInsulin-like growth factor receptorType 2 diabetesHepatic lipid synthesisIsthmin 1Growth factor receptorObese miceInsulin sensitivityTherapeutic dosingMouse modelGlucoregulatory functionGlucose regulationUnmet needTherapeutic potentialDiabetesLipid accumulationPI3K-AktFactor receptor
2020
OGT suppresses S6K1-mediated macrophage inflammation and metabolic disturbance
Yang Y, Li X, Luan HH, Zhang B, Zhang K, Nam JH, Li Z, Fu M, Munk A, Zhang D, Wang S, Liu Y, Albuquerque JP, Ong Q, Li R, Wang Q, Robert ME, Perry RJ, Chung D, Shulman GI, Yang X. OGT suppresses S6K1-mediated macrophage inflammation and metabolic disturbance. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 16616-16625. PMID: 32601203, PMCID: PMC7368321, DOI: 10.1073/pnas.1916121117.Peer-Reviewed Original ResearchConceptsRibosomal protein S6 kinase beta-1Macrophage proinflammatory activationGlcNAc signalingProinflammatory activationUnexpected roleWhole-body metabolismNutrient fluxesLipid accumulationImmune cell activationGlcNAcHomeostatic mechanismsMetabolic disturbancesBeta 1Cell activationDiet-induced metabolic dysfunctionDiet-induced obese miceActivationWhole-body insulin resistanceMacrophage inflammationGlcNAcylationOGTPeripheral tissuesPhosphorylationEnhanced inflammationInsulin resistance