Search results for "Heteroreceptor complex"

showing 7 items of 7 documents

Serotonin Heteroreceptor Complexes and Their Integration of Signals in Neurons and Astroglia—Relevance for Mental Diseases

2021

The heteroreceptor complexes present a novel biological principle for signal integration. These complexes and their allosteric receptor–receptor interactions are bidirectional and novel targets for treatment of CNS diseases including mental diseases. The existence of D2R-5-HT2AR heterocomplexes can help explain the anti-schizophrenic effects of atypical antipsychotic drugs not only based on blockade of 5-HT2AR and of D2R in higher doses but also based on blocking the allosteric enhancement of D2R protomer signaling by 5-HT2AR protomer activation. This research opens a new understanding of the integration of DA and 5-HT signals released from DA and 5-HT nerve terminal networks. The biologica…

0301 basic medicineReviewheteroreceptor complexesTropomyosin receptor kinase BReceptor tyrosine kinasechemistry.chemical_compound0302 clinical medicineG protein-coupled receptorsserotonin receptorsReceptor Serotonin 5-HT2ABiology (General)astrogliabiologyChemistryMental DisordersBrainGeneral MedicineAntidepressive AgentsdepressionG protein-coupled receptors; astroglia; depression; heteroreceptor complexes; rapid antidepressant drugs; receptor tyrosine kinase; serotonin receptors.medicine.symptomAntipsychotic AgentsSerotonergic NeuronsSignal TransductionProto-oncogene tyrosine-protein kinase Srcserotonin receptorheteroreceptor complexeQH301-705.5Astroglia; Depression; G protein-coupled receptors; Heteroreceptor complexes; Rapid antidepressant drugs; Receptor tyrosine kinase; Serotonin receptors;Allosteric regulationserotonin receptors heteroreceptor complexes depression astroglia receptor tyrosine kinase rapid antidepressant drugs G protein-coupled receptors.depression astroglia receptor tyrosine kinase rapid antidepressant drugs G protein-coupled receptorsHeteroreceptorNO03 medical and health sciencesmedicineAnimalsHumansReceptor Fibroblast Growth Factor Type 1rapid antidepressant drugsG protein-coupled receptorReceptors Dopamine D2Dopaminergic NeuronsTyrosine phosphorylationReceptor Cross-TalkReceptor Galanin Type 1Receptor Galanin Type 2030104 developmental biologyMechanism of actionAstrocytesreceptor tyrosine kinasebiology.proteinReceptors Serotonin 5-HT1Neuroscience030217 neurology & neurosurgeryCells
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Increase of the FGFR1 signaling in the FGFR1-5-HT1A heteroreceptor complex in midbrain raphe 5-HT neuron systems via allosteric receptor-receptor int…

2015

The ascending midbrain 5-HT neurons known to contain 5-HT1A autoreceptors may be dysregulated in depression due to a reduced trophic support. New findings show existence of FGFR1-5-HT1A heteroreceptor complexes in the rat hippocampus with a partial characterization of their interface and in midbrain raphe 5-HT nerve cells. With in situ Proximity Ligation Assay (PLA) and supported by co-location of the FGFR1 and 5-HT1A immunoreactivities in midbrain raphe 5-HT cells, evidence for the existence of FGFR1-5-HT1A heteroreceptor complexes were obtained in the dorsal and median raphe nuclei of the Sprague–Dawley rat. Their existence in the rat medullary raphe RN33B cell cultures was also establish…

Agonistmedicine.medical_specialtymedicine.drug_classheteroreceptor complexesBiologyHeteroreceptorMidbrain03 medical and health sciences0302 clinical medicineDorsal raphe nucleusInternal medicinemedicineMultidisciplinaryRapheReceptor-receptor interactionCell biologyEndocrinologymedicine.anatomical_structureserotonin 5-HT1A receptornervous system030220 oncology & carcinogenesisPoster Presentationfibroblast growth factor receptorAutoreceptorNeuron030217 neurology & neurosurgerySpringerPlus
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Enhancement of the FGFR1 signaling in the FGFR1-5-HT1A heteroreceptor complex in midbrain raphe 5-HT neuron systems. Relevance for neuroplasticity an…

2015

New findings show existence of FGFR1-5-HT1A heteroreceptor complexes in 5-HT nerve cells of the dorsal and median raphe nuclei of the rat midbrain and hippocampus. Synergistic receptor-receptor interactions in these receptor complexes indicated their enhancing role in hippocampal plasticity. The existence of FGFR1-5-HT1A heteroreceptor complexes also in midbrain raphe 5-HT nerve cells open up the possibility that antidepressant drugs by increasing extracellular 5-HT levels can cause an activation of the FGF-2/FGFR1 mechanism in these nerve cells as well. Therefore, the agonist modulation of the FGFR1-5-HT1A heteroreceptor complexes and their specific role is now determined in rat medullary …

AgonistSerotoninmedicine.medical_specialtymedicine.drug_classCellular differentiationBiophysicsHeteroreceptor complexBiologyHeteroreceptorBiochemistrySettore BIO/09 - FisiologiaCell LineMidbrainDorsal raphe nucleusMesencephalonInternal medicinemedicineAnimalsSerotonin 5-HT1A receptorReceptor Fibroblast Growth Factor Type 1Protein Interaction MapsPhosphorylationExtracellular Signal-Regulated MAP KinasesMolecular BiologyNeurons8-Hydroxy-2-(di-n-propylamino)tetralinNeuronal PlasticityRapheDepressionAnimalExtracellular Signal-Regulated MAP KinaseCell BiologySerotonin 5-HT1 Receptor AgonistsNeuronFibroblast growth factor receptorRatsEndocrinologymedicine.anatomical_structurenervous systemReceptor Serotonin 5-HT1AAutoreceptorRatFibroblast Growth Factor 2Serotonin 5-HT1 Receptor AgonistNeuronDimerizationNeuroscienceDepression; Dimerization; Fibroblast growth factor receptor; Heteroreceptor complex; Neuronal plasticity; Serotonin 5-HT1A receptor; 8-Hydroxy-2-(di-n-propylamino)tetralin; Animals; Cell Line; Extracellular Signal-Regulated MAP Kinases; Fibroblast Growth Factor 2; Mesencephalon; Neurons; Phosphorylation; Rats; Receptor Fibroblast Growth Factor Type 1; Receptor Serotonin 5-HT1A; Serotonin; Serotonin 5-HT1 Receptor Agonists; Neuronal Plasticity; Protein Interaction Maps
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Evidence for the existence of FGFR1-5-HT1A heteroreceptor complexes in the midbrain raphe 5-HT system.

2015

The ascending midbrain 5-HT neurons known to contain 5-HT1A autoreceptors may be dysregulated in depression due to a reduced trophic support. With in situ proximity ligation assay (PLA) and supported by co-location of the FGFR1 and 5-HT1A immunoreactivities in midbrain raphe 5-HT cells, evidence for the existence of FGFR1–5-HT1A heteroreceptor complexes were obtained in the dorsal and median raphe nuclei of the Sprague–Dawley rat. Their existence in the rat medullary raphe RN33B cell cultures was also established. After combined FGF-2 and 8-OH-DPAT treatment, a marked and significant increase in PLA positive clusters was found in the RN33B cells. Similar results were reached upon coactivati…

Malemedicine.medical_specialtySerotoninG-protein-coupled receptorReceptor tyrosine kinaseBiophysicsHeteroreceptor complexProximity ligation assayBiologyHeteroreceptorBiochemistryMidbrainRats Sprague-DawleyG-protein-coupled receptors; Receptor tyrosine kinases; Fibroblast growth factor receptor 1; Serotonin receptors; Heteroreceptor complex; DimerizationInternal medicinemedicineFluorescence Resonance Energy TransferAnimalsHumansReceptor Fibroblast Growth Factor Type 1Serotonin receptorMolecular Biology5-HT receptorNeurons8-Hydroxy-2-(di-n-propylamino)tetralinRapheMidbrain Raphe NucleiCell BiologyFibroblast growth factor receptor 1Cell biologyRatsmedicine.anatomical_structureEndocrinologyHEK293 Cellsnervous systemGene Expression RegulationReceptor Serotonin 5-HT1AAutoreceptorFibroblast Growth Factor 2NeuronRaphe nucleiPeptidesDimerizationProtein BindingBiochemical and biophysical research communications
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Existence of muscarinic acetylcholine receptor (mAChR) and fibroblast growth factor receptor (FGFR) heteroreceptor complexes and their enhancement of…

2017

Abstract Background Recently, it was demonstrated that G-protein-coupled receptors (GPCRs) can transactivate tyrosine kinase receptors in absence of their ligands. In this work, driven by the observation that mAChRs and fibroblast growth factor receptors (FGFRs) share signalling pathways and regulation of brain functions, it was decided to explore whether mAChRs activation may transactivate FGFRs and, if so, to characterize the related trophic effects in cultured hippocampal neurons. Methods Oxotremorine-M transactivation of FGFRs and related trophic effects were tested in primary hippocampal neurons. Western blotting and in situ proximity ligation assay (PLA) were used to detect FGFR phosp…

Male0301 basic medicineHippocampusBiochemistryReceptor tyrosine kinaseReceptors G-Protein-CoupledRats Sprague-DawleyTransactivation0302 clinical medicineMuscarinic acetylcholine receptorNeural plasticityNeuronsNeuronal PlasticitybiologyReceptors MuscarinicCell biologyFibroblast growth factor receptorFibroblast Growth Factor 2Signal TransductionProto-oncogene tyrosine-protein kinase Srcmedicine.medical_specialtyNeuriteNeuronal OutgrowthBiophysicsHeteroreceptor03 medical and health sciencesHippocampuInternal medicinemedicineAnimalsReceptor Fibroblast Growth Factor Type 1Rats WistarMolecular BiologyTransactivationAnimalOxotremorineFibroblast growth factor receptor 1Receptor Muscarinic M1NeuronReceptors Fibroblast Growth FactorRatsFGFR1030104 developmental biologyEndocrinologyM1receptorBiophysicHeteroreceptor complexebiology.proteinRat030217 neurology & neurosurgeryBiochimica et Biophysica Acta (BBA) - General Subjects
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Crosstalk between receptor tyrosine kinases (RTKs) and G protein-coupled receptors (GPCR) in the brain: Focus on heteroreceptor complexes and related…

2019

Neuronal events are regulated by the integration of several complex signaling networks in which G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) are considered key players of an intense bidirectional cross-communication in the cell, generating signaling mechanisms that, at the same time, connect and diversify the traditional signal transduction pathways activated by the single receptor. For this receptor-receptor crosstalk, the two classes of receptors form heteroreceptor complexes resulting in RTKs transactivation and in growth-promoting signals. In this review, we describe heteroreceptor complexes between GPCR and RTKs in the central nervous system (CNS) and their …

0301 basic medicineG proteinRTKHeteroreceptorSettore BIO/09 - FisiologiaReceptor tyrosine kinaseReceptors G-Protein-Coupled03 medical and health sciencesCellular and Molecular NeuroscienceTransactivation0302 clinical medicineGPCRReceptor Fibroblast Growth Factor Type 1Receptor Fibroblast Growth Factor Type 2ReceptorG protein-coupled receptorPharmacologyTransactivationbiologyChemistryReceptor Protein-Tyrosine KinasesBrainReceptor Cross-TalkCrosstalk (biology)030104 developmental biologyHeteroreceptor complexebiology.proteinSignal transductionNeuroscience030217 neurology & neurosurgerySignal Transduction
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Detection, Analysis, and Quantification of GPCR Homo- and Heteroreceptor Complexes in Specific Neuronal Cell Populations Using the In Situ Proximity …

2018

GPCR’s receptosome operates via coordinated changes between the receptor expression, their modifications and interactions between each other. Perturbation in specific heteroreceptor complexes and/or their balance/equilibrium with other heteroreceptor complexes and corresponding homoreceptor complexes is considered to have a role in pathogenic mechanisms. Such mechanisms lead to mental and neurological diseases, including drug addiction, depression, Parkinson’s disease, and schizophrenia. To understand the associations of GPCRs and to unravel the global picture of their receptor–receptor interactions in the brain, different experimental detection techniques for receptor–receptor interactions…

0301 basic medicineIn situIn situ proximity ligation assayChemistryCellProximity ligation assayHeteroreceptorSettore BIO/09 - FisiologiaImmunohistochemistryReceptor–receptor interactionStoichiometryNOG protein-coupled receptors Immunohistochemistry In situ proximity ligation assay Heteroreceptor complexes Dimerization Receptor–receptor interaction Stoichiometry03 medical and health sciences030104 developmental biology0302 clinical medicinemedicine.anatomical_structureG protein-coupled receptorsBiophysicsmedicineHeteroreceptor complexesDimerization030217 neurology & neurosurgeryG protein-coupled receptor
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