2023
Pivotal 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
2022
S-Nitrosylation of cathepsin B affects autophagic flux and accumulation of protein aggregates in neurodegenerative disorders
Kim K, Cho E, Eom J, Oh S, Nakamura T, Oh C, Lipton S, Kim Y. S-Nitrosylation of cathepsin B affects autophagic flux and accumulation of protein aggregates in neurodegenerative disorders. Cell Death & Differentiation 2022, 29: 2137-2150. PMID: 35462559, PMCID: PMC9613756, DOI: 10.1038/s41418-022-01004-0.Peer-Reviewed Original ResearchConceptsS-nitrosylationProtein aggregatesAutophagic fluxProtein S-nitrosylationBlocks autophagic fluxCathepsin BCaspase-dependent neuronal apoptosisPosttranslational modificationsProtease cathepsin BEnzymatic functionLysosomal protease cathepsin BCTSB activityChemical inhibitorsCA-074MeHuman AD brainsEnzymatic activityCysteineNeurodegenerative disordersPostmortem human AD brainTransgenic miceNeuronal apoptosisCTSBAccumulationAD pathogenesisAlzheimer's disease