2024
Metabolic Bypass Rescues Aberrant S‐nitrosylation‐Induced TCA Cycle Inhibition and Synapse Loss in Alzheimer's Disease Human Neurons
Andreyev A, Yang H, Doulias P, Dolatabadi N, Zhang X, Luevanos M, Blanco M, Baal C, Putra I, Nakamura T, Ischiropoulos H, Tannenbaum S, Lipton S. Metabolic Bypass Rescues Aberrant S‐nitrosylation‐Induced TCA Cycle Inhibition and Synapse Loss in Alzheimer's Disease Human Neurons. Advanced Science 2024, 11: 2306469. PMID: 38235614, PMCID: PMC10966553, DOI: 10.1002/advs.202306469.Peer-Reviewed Original ResearchTricarboxylic acidOxidative phosphorylationAlzheimer's diseaseSynapse lossSynaptic lossPathological correlate of cognitive declineHuman AD brainsTCA cycle inhibitionMetabolic flux experimentsAberrant S-nitrosylationPostmortem human AD brainIsogenic wild-typeAssociated with synaptic lossDysfunctional mitochondrial metabolismMitochondrial bioenergetic functionProtein S-nitrosylationModel of ADMitochondrial energy metabolismCell-permeable derivativeCorrelate of cognitive declineAD brainMitochondrial metabolismEnzyme functionHiPSC-based modelsBioenergetic function
2023
S-Nitrosylation-mediated dysfunction of TCA cycle enzymes in synucleinopathy studied in postmortem human brains and hiPSC-derived neurons
Doulias P, Yang H, Andreyev A, Dolatabadi N, Scott H, K Raspur C, Patel P, Nakamura T, Tannenbaum S, Ischiropoulos H, Lipton S. S-Nitrosylation-mediated dysfunction of TCA cycle enzymes in synucleinopathy studied in postmortem human brains and hiPSC-derived neurons. Cell Chemical Biology 2023, 30: 965-975.e6. PMID: 37478858, PMCID: PMC10530441, DOI: 10.1016/j.chembiol.2023.06.018.Peer-Reviewed Original ResearchConceptsTCA cycleLewy body dementiaAberrant S-nitrosylationMitochondrial metabolic dysfunctionTricarboxylic acid cyclePluripotent stem cellsMitochondrial energy metabolismParkinson's diseaseHiPSC-derived neuronsTCA enzymesMetabolic flux experimentsS-nitrosylationAcid cycleCell deathNeuronal cell deathΑ-ketoglutaratePostmortem human brainEnergy metabolismStem cellsLBD brainsDendritic lengthBioenergetic failureMetabolic dysfunctionSynaptic integrityPathophysiological relevancePivotal role for S-nitrosylation of DNA methyltransferase 3B in epigenetic regulation of tumorigenesis
Okuda K, Nakahara K, Ito A, Iijima Y, Nomura R, Kumar A, Fujikawa K, Adachi K, Shimada Y, Fujio S, Yamamoto R, Takasugi N, Onuma K, Osaki M, Okada F, Ukegawa T, Takeuchi Y, Yasui N, Yamashita A, Marusawa H, Matsushita Y, Katagiri T, Shibata T, Uchida K, Niu S, Lang N, Nakamura T, Zhang K, Lipton S, Uehara T. Pivotal role for S-nitrosylation of DNA methyltransferase 3B in epigenetic regulation of tumorigenesis. Nature Communications 2023, 14: 621. PMID: 36739439, PMCID: PMC9899281, DOI: 10.1038/s41467-023-36232-6.Peer-Reviewed Original ResearchConceptsS-nitrosylationDNA methyltransferasesEnzymatic activityGene expressionDe novo DNA methylationNovo DNA methylationAberrant S-nitrosylationProtein S-nitrosylationDNA methyltransferase 3BDNMT enzymatic activityStructure-based virtual screeningEpigenetic regulationDNA methylationCysteine residuesMethyltransferase 3BVivo cancer modelsS-adenosylAberrant upregulationNeoplastic cell proliferationHuman colonic adenomasMethylationCyclin D2Cell proliferationTumor formationDNMT3B
2017
Chapter 27 Aberrant Nitric Oxide Signaling Contributes to Protein Misfolding in Neurodegenerative Diseases via S-Nitrosylation and Tyrosine Nitration
Nakamura T, Lipton S. Chapter 27 Aberrant Nitric Oxide Signaling Contributes to Protein Misfolding in Neurodegenerative Diseases via S-Nitrosylation and Tyrosine Nitration. 2017, 373-384. DOI: 10.1016/b978-0-12-804273-1.00027-2.Peer-Reviewed Original ResearchReactive oxygen speciesS-nitrosylationProtein misfoldingProtein quality control machineryQuality control machineryAberrant S-nitrosylationUbiquitin-proteasome systemCysteine thiol groupsNeurodegenerative diseasesMolecular chaperonesMisfolded proteinsControl machineryMolecular mechanismsMitochondrial impairmentTyrosine nitrationPathological productionProteinMisfoldingSignaling contributesKey pathological featureOxygen speciesNeuronal demiseNitrogen speciesNitrosative stressGenetic risk factors
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