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500 items found for "Transient receptor potential vanilloid 1"

  • N-Acyl Amides from Neisseria meningitidis and Their Role in Sphingosine Receptor Signaling

    identified 30 N-acyl amides with representative members serving as agonists of the G-protein coupled receptor Both groups of metabolites suppress anti-inflammatory interleukin-10 signaling in human macrophage cell types, but they also suppress the pro-inflammatory interleukin-17A+ population in TH 17-differentiated

  • Focusing on the role of secretin/adhesion (Class B) G protein-coupled receptors in placental...

    October 2022 Focusing on the role of secretin/adhesion (Class B) G protein-coupled receptors in placental G protein-coupled receptors, the largest family of membrane proteins in eukaryotes and the largest drug Among them, the secretin/adhesion (Class B) G protein-coupled receptors are essential drug targets for Given the great value of the secretin/adhesion (Class B) G protein-coupled receptors in the regulation development and preeclampsia, and outlined the relevant pathological mechanisms, thereby providing potential

  • Molecular insights into regulation of constitutive activity by RNA editing 5HT2C serotonin receptor

    The 5HT2C serotonin receptor, which undergoes 32 distinct RNA-editing events leading to 24 protein isoforms These 5HT2C isoforms display differences in constitutive activity, agonist/inverse agonist potencies,

  • Delineation of GPR15 receptor-mediated Gα protein signaling profile in recombinant mammalian cell

    September 2022 "The GPR15 receptor is a G protein-coupled receptor (GPCR), which is activated by an endogenous However, the activation profiles of the GPR15 receptor within Gi/o subtypes have not been examined. Moreover, whether the receptor can also couple to Gs , Gq/11 and G12/13 is unclear. The results show that the GPR15 receptor preferentially couples to Gi/o rather than other pathways in The potencies of both peptides toward each Gi/o subtype have been determined.

  • Unlocking the Therapeutic Potential of Previously Undruggable GPCRs

    to unlock their therapeutic potential. As seen below in Figure 1, natural ligands do not make use of all the potential binding contacts with Figure 1. -1017.e1005. https://doi.org/10.1016/j.immuni.2017.05.002 · Structural explanation of the receptor , 1-10. https://doi.org/10.1016/j.pep.2015.10.011 · Demonstration of the feasibility of manufacturing

  • Free-Energy Simulations Support a Lipophilic Binding Route for Melatonin Receptors

    Crystal structures suggest ligand access to the orthosteric binding site of MT1 and MT2 receptors through entry route for 2-iodomelatonin, a nonselective agonist with a slower dissociation rate from the MT2 receptor which revealed different trajectories passing through the gap between TM helices IV and V for both receptors The side-chain flexibility of Tyr5.38 was significantly different in the two receptor subtypes, as assessed is a way of connecting the orthosteric binding site and the membrane core for lipophilic melatonin receptor

  • Gαs and Gαq/11 protein coupling bias of two AVPR2 mutants (R68W and V162A) that cause nephrogenic di

    diabetes insipidus "Loss-of-function mutations of the arginine vasopressin receptor 2 gene (AVPR2) cause AVPR2 is a kind of G protein coupled receptor (GPCR) and mainly couples with Gαs protein leading to cAMP Investigation into the characterization of biased receptors may give insights into the relationship between the conformational change of the receptor because of the mutation and related downstream signaling. R68W showed bias to coupling with Gαq/11 protein rather than V162A and wild-type receptor.

  • Structure of the human galanin receptor 2 bound to galanin and Gq reveals the basis of ligand...

    September 2022 Structure of the human galanin receptor 2 bound to galanin and Gq reveals the basis of Three G-protein coupled receptors (GPCRs) for galanin have been discovered, which is the focus of efforts To understand the basis of the ligand preferences of the receptors and to assist structure-based drug

  • Adrenal G Protein-Coupled Receptors and the Failing Heart: A Long-distance, Yet Intimate Affair

    sympatholytic treatments (such as β-blockers) and renin-angiotensin system inhibitors or mineralocorticoid receptor Synthesis and release of these hormones in the adrenals is tightly regulated by adrenal G protein-coupled receptors (GPCRs), such as adrenergic receptors and AngII receptors. context of chronic HF, by focusing on the 2 best studied adrenal GPCR types in that context, adrenergic receptors and AngII receptors (AT 1 Rs).

  • G protein-coupled receptors that influence lifespan of human and animal models

    In this sense, G protein-coupled receptors (GPCRs) may be a good option to try to prolong our life while

  • Synaptic integration of subquantal neurotransmission by co-localized G protein coupled receptors in

    GABAB receptors inhibit Ca2+ entry, whereas 5-HT1B receptors target SNARE complexes. We demonstrate in male and female rats that GABAB receptors receptors alter Pr, whereas 5-HT1B receptors modulation by Gβγ, but one - a GABAB receptor inhibits Ca2+ entry while another - a 5-HT1B receptor GABAB receptors alter Pr leaving synaptic properties unchanged, while 5-HT1B receptors fundamentally Co-activation of these receptors allows synaptic integration because of convergence of GABAB receptor

  • Signaling pathways activated by sea bass gonadotropin-inhibitory hormone peptides in COS-7 cells...

    2022 Signaling pathways activated by sea bass gonadotropin-inhibitory hormone peptides in COS-7 cells transfected with their cognate receptor "Results of previous studies provided evidence for the existence of a functional further elucidated the intracellular signaling pathways mediating in sea bass GnIH actions and the potential with their cognate receptor GnIHR. Notably, GnIH2 antagonized Kiss2-evoked CRE-luc activity in COS-7 cells expressing GnIHR and Kiss2 receptor

  • The sixth transmembrane region of a pheromone G-protein coupled receptor, Map3, is implicated in ...

    The sixth transmembrane region of a pheromone G-protein coupled receptor, Map3, is implicated in discrimination the molecular recognition of two peptidyl mating pheromones by their corresponding G-protein coupled receptors Although such pheromone/receptor systems are likely to function in both mate choice and prezygotic isolation , very few studies have focused on the stringency of pheromone receptors. GPCRs might reflect the significantly distinct stringency/flexibility of their respective pheromone/receptor

  • A2B Adenosine Receptor Enhances Chemoresistance of Glioblastoma Stem-Like Cells under Hypoxia: New..

    September 2022 A2B Adenosine Receptor Enhances Chemoresistance of Glioblastoma Stem-Like Cells under we show for the first time that MRP3 expression is induced under hypoxia through the A2B adenosine receptor Downregulation of the A2B receptor decreases MRP3 expression and chemosensibilizes GSCs treated with These data suggest that hypoxia-dependent activation of A2B adenosine receptor promotes survival of GSCs

  • Opioid Ligands Addressing Unconventional Binding Sites and More Than One Opioid Receptor Subtype

    August 2022 "Opioid receptors (ORs) represent one of the most significant groups of G-protein coupled receptor (GPCR) drug targets and also act as prototypical models for GPCR function.

  • Novel interaction between neurotrophic factor-α1/carboxypeptidase E and serotonin receptor, 5-HTR1E,

    neurotrophic factor-α1 (NF-α1/carboxypeptidase E, CPE) and human 5-HTR1E, a G protein-coupled serotonin receptor Co-immunoprecipitation and pull-down assays confirmed interaction between NFα1/CPE and 5-HTR1E and 125I HEK293 cells (Kd = 13.82 nM). Treatment of 5-HTR1E stable cells with NF-α1/CPE increased pERK 1/2 and pCREB levels which prevented Thus, NF-α1/CPE uniquely interacts with serotonin receptor 5-HTR1E to activate the β-arrestin/ERK/CREB

  • Cell-Type-Specific Effects of the Ovarian Cancer G-Protein Coupled Receptor (OGR1) on Inflammation..

    September 2022 Cell-Type-Specific Effects of the Ovarian Cancer G-Protein Coupled Receptor (OGR1) on Inflammation and Fibrosis; Potential Implications for Idiopathic Pulmonary Fibrosis "Idiopathic pulmonary Proton-sensing G-protein coupled receptors are activated by acidic environments, but their role in fibrosis Here, we report that the Ovarian Cancer G-Protein Coupled Receptor1 (OGR1 or GPR68) has dual roles in However, in epithelial cells, OGR1 promotes epithelial to mesenchymal transition (EMT) and inflammation

  • Angiotensin-(1-7) improves cognitive function and reduces inflammation in mice following mild trauma

    September 2022 Angiotensin-(1-7) improves cognitive function and reduces inflammation in mice following Angiotensin 1-7 (Ang-1-7), an endogenous peptide, acts at the G protein coupled MAS1 receptors (MASR) Few studies have identified whether Ang-(1-7) decreases cognitive impairment following closed TBI. This study examined the therapeutic effect of Ang-(1-7) on secondary injury observed in a murine model

  • Phenylalanine 193 in Extracellular Loop 2 of the β 2-Adrenergic Receptor Coordinates β-Arrestin ...

    Phenylalanine 193 in Extracellular Loop 2 of the β 2-Adrenergic Receptor Coordinates β -Arrestin Interaction G protein-coupled receptors (GPCRs) transduce a diverse variety of extracellular stimuli into intracellular These receptors are the most clinically productive drug targets at present. components of receptor-effector interactions remain incompletely described. The β 2-adrenergic receptor ( β 2AR) is a prototypical and extensively studied GPCR that can provide

  • Activation of GPR183 by 7 α,25-Dihydroxycholesterol Induces Behavioral Hypersensitivity through...

    Mitogen-Activated Protein Kinase and Nuclear Factor- κ B "Emerging evidence implicates the G-protein coupled receptor These effects are blocked by the selective small molecule GPR183 antagonist, SAE-14. of dorsal-horn spinal cord (DH-SC) tissues harvested at the time of peak hypersensitivity implicate potential SAE-14 blocked these effects and behavioral hypersensitivity. induce behavioral hypersensitivity, and these effects are blocked by the selective GPR183 antagonist SAE-14

  • Allosteric Effect of Nanobody Binding on Ligand-Specific Active States of the β2 Adrenergic Receptor

    Nanobody binding stabilizes G-protein-coupled receptors (GPCR) in a fully active state and modulates conformational changes induced by the binding of a nanobody (Nb80) on the active-like β2 adrenergic receptor Dimensionality reduction analysis shows that Nb80 stabilizes structural features of the β2AR with an ∼14 proximity of transmembrane (TM) helices 5 and 7, and favors the fully active-like conformation of the receptor contrast to the conditions under which no intracellular binding partner is bound, in which case the receptor

  • Extracellular signal-regulated kinases – a potential pathway for GPCR-targeted drug discovery

    The gravity of this regulation becomes even more apparent when we consider the potential consequences Biased receptor signaling in drug discovery. Pharmacological Reviews, 71(2), 267-315. ERK-dependent apoptosis as a potential therapeutic strategy for cancer. Cells, 10(10), 2509. Biology of the Cell, 93(1‐2), 71-79. Wei, H., Ahn, S., Shenoy, S. K., Karnik, S. G protein-mediated pathways for angiotensin II activation of extracellular signal-regulated kinases 1

  • G protein-coupled receptor kinase 2 is essential to enable vasoconstrictor-mediated arterial ...

    G protein-coupled receptor kinase 2 is essential to enable vasoconstrictor-mediated arterial smooth muscle In VSMC, G protein-coupled receptor kinase 2 (GRK2) is known to regulate numerous vasoconstrictor GPCRs Furthermore, GRK2-knockdown ablated the sustained phase of endothelin-1 and angiotensin-II-stimulated Moreover, GRK2 knockdown prevented endothelin-1 and angiotensin-II from increasing cyclin D1 expression Considering VSMC GRK2 expression increases early in the development of hypertension, this highlights the potential

  • Obesity-induced changes in human islet G protein-coupled receptor expression: Implications for ...

    Obesity-induced changes in human islet G protein-coupled receptor expression: Implications for metabolic regulation G protein-coupled receptors (GPCRs) are a large family of cell surface receptors that are

  • The mouse cytomegalovirus G protein-coupled receptor homolog, M33, coordinates key features of ...

    The mouse cytomegalovirus G protein-coupled receptor homolog, M33, coordinates key features of in vivo Common to all cytomegalovirus (CMV) genomes analysed to date is the presence of G protein-coupled receptors M33 engages Gq/11 to constitutively activate phospholipase C β (PLCβ) and downstream cyclic AMP response-element Following intranasal infection with MCMV M33ΔC38, the absence of M33 CREB Gq/11-dependent signalling IMPORTANCE G protein-coupled receptors (GPCRs) act as cell surface molecular "switches" which regulate

  • Role of G Protein-Coupled Receptors in Hepatic Stellate Cells and Approaches to Anti-Fibrotic ...

    Role of G Protein-Coupled Receptors in Hepatic Stellate Cells and Approaches to Anti-Fibrotic Treatment G protein-coupled receptors (GPCRs) are cell surface receptors that mediate the function of a great variety

  • A NanoBRET-Based H 3 R Conformational Biosensor to Study Real-Time H 3 Receptor Pharmacology in...

    August 2022 A NanoBRET-Based H 3 R Conformational Biosensor to Study Real-Time H 3 Receptor Pharmacology Membranes and Living Cells "Conformational biosensors to monitor the activation state of G protein-coupled receptors addition to the molecular pharmacology assay toolbox to characterize ligand efficacy at the level of receptor We recently reported the initial characterization of a NanoBRET-based conformational histamine H3 receptor In addition, we have validated the H3R biosensor in membrane preparations and found that observed potency

  • G protein-coupled receptor kinase type 2 and β-arrestin2: Key players in immune cell functions...

    August 2022 G protein-coupled receptor kinase type 2 and β-arrestin2: Key players in immune cell functions and inflammation "G protein-coupled receptor kinase type 2 (GRK2) and β-arrestin2 are representative proteins that regulate the transduction and trafficking of G protein-coupled receptor (GPCR) signaling

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