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RE-1 silencing transcription factor (REST) is a transcriptional repressor that represses neuronal gene transcription in non-neuronal cells. REST target genes are expressed in neurons and in neuroendocrine cells. Here, we show that treatment with the histone deacetylase inhibitor trichostatin A (TSA) or expression of a mutant of REST (DP-REST:ER) that(More)
Human HNSC.100 neural stem cells up-regulate expression of GFAP following withdrawal of mitogens. Activation of the ERK signaling pathway prevented the up-regulation of GFAP expression. Incubation of cells with retinoic acid in the absence of mitogens enhanced basal neuronal differentiation that was accompanied by an up-regulation of neuronal gene(More)
Synaptophysin, one of the major proteins on synaptic vesicles, is ubiquitously expressed throughout the brain. Synaptophysin and synapsin I, another synaptic vesicle protein, are also expressed by retinoic acid-induced neuronally differentiated P19 teratocarcinoma cells. Here, we show that inhibition of histone deacetylase activity in P19 cells is(More)
It has been suggested that reduced glutamate receptor expression protects glioma cells from glutamate toxicity. GluR2 is the critical subunit of the GluR2 subtype of AMPA glutamate receptors as this subunit determines the Ca(2+) permeability of the receptor. The gene encoding the GluR2 subtype of AMPA receptors has been described as a target gene for the(More)
Renal denervation (RDN) reduces renal efferent and afferent sympathetic activity thereby lowering blood pressure in resistant hypertension. The effect of modulation of the autonomic nervous system by RDN on atrial electrophysiology and ventricular rate control during atrial fibrillation (AF) is unknown. Here we report a reduction of ventricular heart rate(More)
BACKGROUND Obstructive sleep apnea (OSA) is associated with hypertension and the progression of chronic kidney disease (CKD). Renal sympathetic innervation contributes to either condition. METHODS We investigated the effect of renal sympathetic denervation (RDN) on blood pressure (BP), renal perfusion, and neurohumoral responses during and after(More)
The additive effects of obesity and metabolic syndrome on left ventricular (LV) maladaptive remodeling and function in hypertension are not characterized. We compared an obese spontaneously hypertensive rat model (SHR-ob) with lean spontaneously hypertensive rats (SHR-lean) and normotensive controls (Ctr). LV-function was investigated by cardiac magnetic(More)
Synapsin I and synaptophysin are major proteins of small synaptic vesicles. In neurons the transcriptional repressor REST is a major regulator of synapsin I and synaptophysin gene transcription. Gene regulation by REST is influenced by the configuration of the chromatin and cell type specific variations have been observed. Here, we have investigated the(More)
Apolipoprotein E-deficient (ApoE−/−) rodents spontaneously develop severe hypercholesterolemia and increased aortic stiffness, both accepted risk factors for cardiovascular morbidity and mortality in humans. In patients with resistant hypertension renal denervation (RDN) may improve arterial stiffness, however the underlying mechanisms are incompletely(More)
Peptide hormones that regulate plant growth and development are derived from larger precursor proteins by proteolytic processing. Our study addressed the role of subtilisin-like proteinases (SBTs) in this process. Using tissue-specific expression of proteinase inhibitors as a tool to overcome functional redundancy, we found that SBT activity was required(More)