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320 items found for "signal transduction"

  • Prostaglandin signaling in ciliogenesis and development

    Prostaglandin (PG) signaling regulates a wide variety of physiological and pathological processes, including Many G-protein-coupled receptors (GPCRs) including EP4 are localized in cilia for modulating cAMP signaling During development, PGE2 signaling regulates embryogenesis, hepatocyte differentiation, hematopoiesis This review outlines recent advances in understanding the functions and mechanisms of prostaglandin signaling

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

    GPR15 signals through the Gi/o pathway to decrease intracellular cyclic adenosine 3',5'-monophosphate -81) are used as pharmacological tool compounds to delineate the GPR15 receptor-mediated Gα protein signalling Furthermore, the GPR15 receptor signals through Gi/o to inhibit cAMP accumulation, which could be blocked

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

    encode a variety of bioactive small molecules with growing evidence for N-acyl amides as being important signaling Both groups of metabolites suppress anti-inflammatory interleukin-10 signaling in human macrophage cell

  • β-arrestin1 promotes tauopathy by transducing GPCR signaling, disrupting microtubules and autophagy

    GPCRs share a common mechanism of action via the β-arrestin scaffolding signaling complexes, which not only serve to desensitize GPCRs by internalization, but also mediate multiple downstream signaling events As signaling via the GPCRs, β2-adrenergic receptor (β2AR), and metabotropic glutamate receptor 2 (mGluR2

  • Adenosine receptor signalling in Alzheimer's disease

    October 2022 "Alzheimer's disease (AD) is the most common dementia in the elderly and its increasing prevalence presents treatment challenges. Despite a better understanding of the disease, the current mainstay of treatment cannot modify pathogenesis or effectively address the associated cognitive and memory deficits. Emerging evidence suggests adenosine G protein-coupled receptors (GPCRs) are promising therapeutic targets for Alzheimer's disease. The adenosine A1 and A2A receptors are expressed in the human brain and have a proposed involvement in the pathogenesis of dementia. Targeting these receptors preclinically can mitigate pathogenic β-amyloid and tau neurotoxicity whilst improving cognition and memory. In this review, we provide an accessible summary of the literature on Alzheimer's disease and the therapeutic potential of A1 and A2A receptors. Although there are no available medicines targeting these receptors approved for treating dementia, we provide insights into some novel strategies, including allosterism and the targeting of oligomers, which may increase drug discovery success and enhance the therapeutic response." Read more at the source #DrGPCR #GPCR #IndustryNews

  • Adenosine receptor signalling in Alzheimer's disease

    August 2022 "Alzheimer's disease (AD) is the most common dementia in the elderly and its increasing prevalence presents treatment challenges. Despite a better understanding of the disease, the current mainstay of treatment cannot modify pathogenesis or effectively address the associated cognitive and memory deficits. Emerging evidence suggests adenosine G protein-coupled receptors (GPCRs) are promising therapeutic targets for Alzheimer's disease. The adenosine A1 and A2A receptors are expressed in the human brain and have a proposed involvement in the pathogenesis of dementia. Targeting these receptors preclinically can mitigate pathogenic β-amyloid and tau neurotoxicity whilst improving cognition and memory. In this review, we provide an accessible summary of the literature on Alzheimer's disease and the therapeutic potential of A1 and A2A receptors. Although there are no available medicines targeting these receptors approved for treating dementia, we provide insights into some novel strategies, including allosterism and the targeting of oligomers, which may increase drug discovery success and enhance the therapeutic response." Read more at the source #DrGPCR #GPCR #IndustryNews

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

    September 2022 Signaling pathways activated by sea bass gonadotropin-inhibitory hormone peptides in COS Herein, we further elucidated the intracellular signaling pathways mediating in sea bass GnIH actions and the potential interactions with sea bass kisspeptin (Kiss) signaling. These data indicate that sea bass GnIHR signals can be transduced through the PKA and PKC pathways, and GnIH can interfere with kisspeptin actions by reducing its signaling.

  • G protein-biased GPR3 signaling ameliorates amyloid pathology in a preclinical Alzheimer's disease..

    Biased G protein-coupled receptor (GPCR) ligands, which preferentially activate G protein or β-arrestin signaling Although GPCRs are implicated in the pathophysiology of Alzheimer's disease (AD), biased GPCR signaling Our previous work demonstrated that GPR3-mediated β-arrestin signaling modulates amyloid-β (Aβ) generation reduced fertility, and memory impairment, which are potentially associated with impaired G protein signaling We further determined that G protein-biased signaling reduces soluble Aβ levels and leads to a decrease

  • Coincident Regulation of PLCβ Signaling by Gq-Coupled and μOpioid Receptors Opposes Opioid- Mediated

    October 2022 Coincident Regulation of PLCβ Signaling by Gq-Coupled and μOpioid Receptors Opposes Opioid Here we investigated a potential mechanism for regulation of PLC signaling downstream of MOR in HEK293 cells and found that MOR alone could not stimulate PLC, but rather required a coincident signal from These data support a model where Gq and Gβγ-dependent signaling cooperatively regulate PLC activation

  • Comparative study of neuropeptide signaling systems in Hemiptera

    Although they form an ancient signaling system, there is still a great deal of variety in neuropeptides Additionally, we discovered that the neuropeptide signaling systems of Sternorrhyncha were very different groundwork for the creation of novel D. vitifoliae management strategies that specifically target these signaling

  • Functional modulation of PTH1R activation and signaling by RAMP2

    Using different optical biosensors to measure the activation of PTH1R and its downstream signaling, we Moreover, RAMP2 modulates PTH1R downstream signaling in an agonist-dependent manner, most notably increasing the PTH-mediated Gi3 signaling sensitivity. These data uncover a critical role of RAMPs in the activation and signaling of a GPCR that may provide

  • Quantifying the kinetics of GPCR signaling

    Join us and learn how to quantify your kinetic GPCR signaling from the expert himself: Dr.

  • A Model for the Signal Initiation Complex Between Arrestin-3 and the Src Family Kinase Fgr

    Arrestins regulate a wide range of signaling events, most notably when bound to active G protein-coupled modulates Fgr activity with a hallmark bell-shaped concentration-dependence, consistent with a role as a signaling

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

    Historically, drug discovery efforts targeting GPCRs focused on G-protein-dependent signaling pathways Extracellular signal-regulated kinases (ERK), a subset of the mitogen-activated protein kinase (MAPK) family, have long been known to play a critical role in the signaling pathways of GPCRs. This signaling cascade involves several steps. Biased receptor signaling in drug discovery. Pharmacological Reviews, 71(2), 267-315.

  • Structural view of G protein-coupled receptor signaling in the retinal rod outer segment

    October 2022 "Visual phototransduction is the most extensively studied G protein-coupled receptor (GPCR) signaling maintaining the spacing between ROS discs, suggesting a plausible mechanism by which intrinsic optical signals

  • The regulation of PKA signaling in obesity and in the maintenance of metabolic health

    October 2022 "The cAMP-dependent protein kinase (PKA) system represents a primary cell-signaling pathway PKA facilitates the actions of hormones, neurotransmitters and other signaling molecules that bind G-protein Through its control of synaptic events, exocytosis, transcriptional regulation, and more, PKA signaling Neural PKA signaling is regulated by afferent and peripheral efferent signals that link specific neural

  • β2-Adrenergic Receptor Expression and Intracellular Signaling in B Cells Are Highly Dynamic during..

    September 2022 β2-Adrenergic Receptor Expression and Intracellular Signaling in B Cells Are Highly Dynamic In this study, the expression and signaling of β2-ADR in B cells during collagen-induced arthritis (CIA downstream molecules (G protein-coupled receptor kinase 2 (GRK-2), β-Arrestin 2, p38 MAPK, extracellular signal-regulated The change of β2-ADR expression and signaling during sustained inflammation might be an integral part

  • CD28 and chemokine receptors: Signalling amplifiers at the immunological synapse

    A finely tuned signalling compartmentalization orchestrated in dynamic platforms is an essential requirement several studies have depicted the pivotal role of the cytoskeleton and lipid microdomains in controlling signalling Here, we discuss mechanisms responsible for signalling amplification and compartmentalization in T cell We also take into account the detrimental effect of mutations carried by distinct signalling proteins

  • 📰 GPCR Weekly News - January 2 to 8, 2023

    GPCR Activation and Signaling Signal Transduction and Gene Regulation in the Endothelium. GPCR Signaling Measurement and Drug Profiling with an Automated Live-Cell Microscopy System. GPCRs in Oncology and Immunology Vasoactive intestinal peptide receptor 2 signaling promotes breast cancer STALICLA signs agreement with Novartis on neurodevelopmental disorders Call for GPCR Papers GPCRs: Signal Transduction.

  • Ode to GPCRs

    pathway, one of the two principal signal transduction pathways associated with GPCRs mediated signaling Incidentally, phosphorylation is a key regulatory mechanism employed in the GPCR-mediated signal transduction transduction in cells.[40–46] In his work, Rodbell demonstrated that signal transduction through the Gilman discovered that the transducer component of signal transduction that requires GTP is G-protein G protein-dependent signaling is the most well-known mechanism employed in GPCRs mediated signal transduction

  • Regulator of G Protein Signaling 20 Correlates with Long Intergenic Non-Coding RNA (lincRNAs)...

    September 2022 Regulator of G Protein Signaling 20 Correlates with Long Intergenic Non-Coding RNA (lincRNAs Interestingly, RGS (Regulators of G protein signaling) proteins, which negatively regulate GPCR signaling cystadenocarcinoma: p = 0.048); (d) RGS20 was found to be significantly associated with some tumor-related signaling

  • 📰 GPCR Weekly News, October 16 to 22, 2023

    JoAnn Trejo's study 'identifies two deubiquitinases that regulate GPCR-p38 MAPK signaling and distinct Robert J Lefkowitz and team's study 'GPCR signal transduction: β-arrestin activates ERK MAPK.' Dr. GPCR Activation and Signaling β-Arrestin-dependent and -independent endosomal G protein activation by inflammatory responses State-dependent dynamics of extramembrane domains in the β2 -adrenergic receptor Signal transduction at GPCRs: Allosteric activation of the ERK MAPK by β-arrestin GPCR Binders, Drugs, and

  • Diversity and specificity in location-based signaling outputs of neuronal GPCRs

    GPCRs show great diversity in their intracellular location, interacting partners and effectors, and signaling Here we will discuss recent studies on the diversity of location, effectors, and signaling of GPCRs, and how these could interact to generate specific spatiotemporal patterns of GPCR signaling in cells.

  • GPCR/endocytosis/ERK signaling/S2R is involved in the regulation of the internalization...

    September 2022 GPCR/endocytosis/ERK signaling/S2R is involved in the regulation of the internalization However, its regulating signaling pathways remain to be elucidated. influence of specific inhibitors of G protein-coupled receptors (GPCR), endocytosis pathways, extracellular signal-regulated kinases 1/2 (ERK1/2) signaling, p38 signaling, mitochondrial respiration and Na+/K+-ATPase activity Overall, phagocytosis, CME, GPCR, ERK signaling, and S2R/TMEM97 are involved in the internalization of

  • Structural perspectives on the mechanism of signal activation, ligand selectivity and allosteric...

    October 2022 Structural perspectives on the mechanism of signal activation, ligand selectivity and allosteric

  • 📰 GPCR Weekly News, February 13 to 19, 2023

    GPCR Activation and Signaling Statins inhibit protein kinase D (PKD) activation in intestinal cells and From outside to inside and back again: the lysophosphatidic acid-CCN axis in signal transduction. Octopamine and tyramine signalling in Aedes aegypti: Molecular characterization and insight into potential Artificial Intelligence for Drug Discovery Call for GPCR Papers GPCRs: Signal Transduction.

  • GPCRS: AN ODYSSEY FROM STRUCTURE, SIGNALING AND REGULATION TO THERAPEUTICS

    GPCR function has revealed new paradigms with increasingly complex models of receptor activation and signaling Spatial-temporal signaling of GPCRs and physiological functions; 2. The structural basis for GPCR activation of down-stream signaling and regulatory proteins; and 4.

  • Network pharmacological investigation into the mechanism of Kaixinsan powder for the treatment of...

    , including neuroactive ligand-receptor interaction pathway, serotonergic synapse pathway, PI3K-Akt signaling pathway and MAPK signaling pathway. transduction, hormone metabolism and nerve cell apoptosis. pathways (Neuroactive ligand -receptor interaction pathway, serotonergic synapse pathway, PI3K-Akt signaling pathway and MAPK signaling pathway)."

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