Inhibition of Heat Shock Protein 90 suppresses TWIST1 Transcription
Chong KY, Kang M, Garofalo F, Ueno D, Liang H, Cady S, Madarikan O, Pitruzzello N, Tsai CH, Hartwich T, Shuch B, Yang-Hartwich Y. Inhibition of Heat Shock Protein 90 suppresses TWIST1 Transcription. Molecular Pharmacology 2019, 96: 168-179. PMID: 31175180, DOI: 10.1124/mol.119.116137.Peer-Reviewed Original ResearchMeSH KeywordsBenzoquinonesCell Line, TumorDrug Resistance, NeoplasmEpithelial-Mesenchymal TransitionFemaleGene Expression Regulation, NeoplasticHSP90 Heat-Shock ProteinsHumansKidney NeoplasmsLactams, MacrocyclicNasopharyngeal NeoplasmsNuclear ProteinsOvarian NeoplasmsPhosphorylationPromoter Regions, GeneticSTAT3 Transcription FactorTissue Array AnalysisTranscription, GeneticTwist-Related Protein 1ConceptsEpithelial-mesenchymal transitionHsp90 inhibitorsTwist1 transcriptionMolecular chaperone heat shock protein 90Chaperone heat shock protein 90Involvement of Hsp90Heat shock protein 90Cancer cell linesRole of Hsp90Binding of STAT3Inhibition of Hsp90Shock protein 90Cell linesProximity ligation assayHsp90 inhibitor 17TWIST1 mRNA expressionTranscription factorsSignal transducerProtein 90Promoter activityTranscription 3New therapeutic opportunitiesHsp90Molecular mechanismsSTAT3 activityProtein kinase Cα–mediated phosphorylation of Twist1 at Ser-144 prevents Twist1 ubiquitination and stabilizes it
Tedja R, Roberts CM, Alvero AB, Cardenas C, Yang-Hartwich Y, Spadinger S, Pitruzzello M, Yin G, Glackin CA, Mor G. Protein kinase Cα–mediated phosphorylation of Twist1 at Ser-144 prevents Twist1 ubiquitination and stabilizes it. Journal Of Biological Chemistry 2019, 294: 5082-5093. PMID: 30733340, PMCID: PMC6442047, DOI: 10.1074/jbc.ra118.005921.Peer-Reviewed Original ResearchConceptsProtein kinase CPhosphorylation sitesHelix transcription factorPhosphorylation of Twist1Candidate phosphorylation sitesProtein kinase CαCombination of immunoblottingUbiquitination eventsTwist1 phosphorylationTranscription factorsEmbryonic developmentKnockout experimentsSer-144CRISPR/Twist1 proteinKinase CInvasive phenotypeAdult cellsPhosphorylationTwist1UbiquitinationCancer developmentCell linesTwist1 expressionPKCαp53-Pirh2 Complex Promotes Twist1 Degradation and Inhibits EMT
Yang-Hartwich Y, Tedja R, Roberts C, Goodner-Bingham J, Cardenas C, Gurea M, Sumi NJ, Alvero AB, Glackin CA, Mor G. p53-Pirh2 Complex Promotes Twist1 Degradation and Inhibits EMT. Molecular Cancer Research 2019, 17: molcanres.0238.2018. PMID: 30131448, PMCID: PMC6800184, DOI: 10.1158/1541-7786.mcr-18-0238.Peer-Reviewed Original ResearchConceptsEpithelial-mesenchymal transitionTwist1 degradationInvasive cancer phenotypeEMT-inducing transcription factorsAbility of p53Tumor suppressor geneTumor cell invasivenessWild-type p53Proteasomal degradationTranscription factorsTwist1 proteinSuppressor geneEpithelial phenotypeInhibits epithelial-mesenchymal transitionCancer phenotypeMolecular levelCell invasivenessCancer progressionCancer metastasisWt p53Twist1P53Metastatic processTumor progressionNew insights