Search results for "SIRT2"

showing 2 items of 2 documents

The histone deacetylase sirtuin 2 is a new player in the regulation of platelet function

2015

SummaryBackground Histone deacetylases (HDACs) play a key role in signaling in many cell types. However, little is known about the participation of HDACs, particularly sirtuins (SIRTs), in platelet reactivity. Objective To investigate the role of HDACs in platelets, we examined the effects of SIRT inhibition on platelet function and protein acetylation in human platelets. Methods We used washed platelets obtained from healthy subjects. Cambinol (SIRT1 and SIRT2 inhibitor), AGK2 (specific SIRT2 inhibitor) and EX527 (specific SIRT1 inhibitor) were used as SIRT inhibitors. Platelets were stimulated with collagen, thrombin, or U46619, and platelet responses were determined according to optical …

Blood PlateletsPlatelet AggregationCytoplasmic GranulesSIRT2Glycogen Synthase Kinase 3Akt3 protein kinaseSirtuin 2sirtuinsHumansPlateletRNA MessengerPhosphorylationProtein kinase Bacetylationblood plateletGlycogen Synthase Kinase 3 betabiologySecretory VesiclesAcetylationHematologyCell biologyHistone Deacetylase InhibitorsBiochemistryAcetylationSirtuinbiology.proteinPhosphorylationPlatelet aggregation inhibitorCalciumHistone deacetylaseProtein Processing Post-TranslationalProto-Oncogene Proteins c-aktPlatelet Aggregation Inhibitorssignal transductionSignal TransductionJournal of Thrombosis and Haemostasis
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Superfood for axons: Glial exosomes boost axonal energetics by delivery of SIRT2

2021

Axon integrity depends on support by glia facilitating axonal maintenance and energy homeostasis, but the molecular mechanisms are not well understood. In this issue of Neuron, Chamberlain et al. (2021) provide evidence that oligodendrocyte-to-axon transfer of SIRT2 via extracellular vesicles (exosomes) enables deacetylation of mitochondrial proteins, enhancing axonal energy production.

medicine.anatomical_structurenervous systemChemistryGeneral NeurosciencemedicineNeuronAxonSIRT2Extracellular vesiclesMitochondrial proteinEnergy homeostasisMicrovesiclesCell biologyNeuron
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