2007
Aging-Associated Reductions in AMP-Activated Protein Kinase Activity and Mitochondrial Biogenesis
Reznick RM, Zong H, Li J, Morino K, Moore IK, Yu HJ, Liu ZX, Dong J, Mustard KJ, Hawley SA, Befroy D, Pypaert M, Hardie DG, Young LH, Shulman GI. Aging-Associated Reductions in AMP-Activated Protein Kinase Activity and Mitochondrial Biogenesis. Cell Metabolism 2007, 5: 151-156. PMID: 17276357, PMCID: PMC1885964, DOI: 10.1016/j.cmet.2007.01.008.Peer-Reviewed Original ResearchConceptsIntracellular lipid metabolismMitochondrial biogenesisAMPK activityMitochondrial functionProtein kinase activityLipid metabolismProtein kinaseKinase activityAge-associated reductionBiogenesisOld ratsAMPKSkeletal muscleRecent studiesInsulin resistanceChronic activationMetabolismAcute stimulationFat oxidationImportant roleAcid feedingKinaseRatsActivityRegulation
2006
AMP-activated protein kinase regulates the assembly of epithelial tight junctions
Zhang L, Li J, Young LH, Caplan MJ. AMP-activated protein kinase regulates the assembly of epithelial tight junctions. Proceedings Of The National Academy Of Sciences Of The United States Of America 2006, 103: 17272-17277. PMID: 17088526, PMCID: PMC1859922, DOI: 10.1073/pnas.0608531103.Peer-Reviewed Original ResearchConceptsTight junction assemblyJunction assemblyProtein kinaseLKB1-dependent phosphorylationCell polarization processCellular energy statusActivation of AMPKTight junctionsEukaryotic cellsTight junction structureAMPKMDCK cellsEpithelial tight junctionsEnergy statusKinaseEpithelial cellsAbsence of Ca2AssemblyTransepithelial electrical resistanceParacellular fluxZonula occludens-1CellsRecent studiesOccludens-1LKB1