Search results for "GTP-Binding Protein beta Subunits"

showing 3 items of 3 documents

Crosstalk between angiotensin and the nonamyloidogenic pathway of Alzheimer's amyloid precursor protein.

2017

The association between hypertension and an increased risk for Alzheimer's disease (AD) and dementia is well established. Many data suggest that modulation of the renin-angiotensin system may be meaningful for the prevention and therapy of neurodegenerative disorders, in particular AD. Proteolytic cleavage of the amyloid precursor protein (APP) by α-secretase precludes formation of neurotoxic Aβ peptides and is expected to counteract the development of AD. An established approach for the up-regulation of α-secretase cleavage is the activation of G protein-coupled receptors (GPCRs). Therefore, our study aimed to analyze whether stimulation of angiotensin AT1 or AT2 receptors stably expressed…

0301 basic medicineAngiotensin receptorAngiotensinsBiochemistryReceptor Angiotensin Type 2Receptor Angiotensin Type 103 medical and health sciencesAmyloid beta-Protein PrecursorAlzheimer DiseaseCyclohexanesGTP-Binding Protein gamma SubunitsAmyloid precursor proteinHumansMolecular Biologybeta-ArrestinsG protein-coupled receptorAngiotensin II receptor type 1biologyChemistryGTP-Binding Protein beta SubunitsP3 peptideCell BiologyAmyloidosisAngiotensin IIGTP-Binding Protein alpha SubunitsBiochemistry of Alzheimer's diseaseCell biology030104 developmental biologyHEK293 CellsPyrazinesProteolysisbiology.proteinAmyloid Precursor Protein SecretasesAmyloid precursor protein secretaseThe FEBS journal
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2004

We investigated how the synthesis of cAMP, stimulated by isoproterenol acting through β-adrenoreceptors and Gs, is strongly amplified by simultaneous incubation with baclofen. Baclofen is an agonist of δ-aminobutyric acid type B receptors [GABAB], known to inhibit adenylyl cyclase via Gi. Because these agents have opposite effects on cAMP levels, the unexpected increase in cAMP synthesis when they are applied simultaneously has been intensively investigated. From previous reports, it appears that cyclase type II contributes most significantly to this phenomenon. We found that simultaneous application of isoproterenol and baclofen specifically influences the association/dissociation of molec…

Adenylyl cyclasechemistry.chemical_compoundGs alpha subunitchemistryADCY9GTP-Binding Protein beta SubunitsCell BiologyBiologyReceptorCyclaseCyclase activityADCY10Cell biologyBMC Cell Biology
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Simultaneous stimulation of GABA and beta adrenergic receptors stabilizes isotypes of activated adenylyl cyclase heterocomplex

2004

Abstract Background We investigated how the synthesis of cAMP, stimulated by isoproterenol acting through β-adrenoreceptors and Gs, is strongly amplified by simultaneous incubation with baclofen. Baclofen is an agonist of δ-aminobutyric acid type B receptors [GABAB], known to inhibit adenylyl cyclase via Gi. Because these agents have opposite effects on cAMP levels, the unexpected increase in cAMP synthesis when they are applied simultaneously has been intensively investigated. From previous reports, it appears that cyclase type II contributes most significantly to this phenomenon. Results We found that simultaneous application of isoproterenol and baclofen specifically influences the assoc…

Baclofenlcsh:CytologyGTP-Binding Protein beta SubunitsIsoproterenolAdrenergic beta-AgonistsRatsIsoenzymesRats Sprague-DawleyReceptors GABAGTP-Binding Protein gamma SubunitsMultiprotein ComplexesReceptors Adrenergic betaSynapsesCyclic AMPGTP-Binding Protein alpha Subunits GsAnimalslcsh:QH573-671GABA AgonistsResearch ArticleAdenylyl CyclasesSignal TransductionBMC Cell Biology
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