328 results found
    1. Neuroscience

    Activation of astrocytes in hippocampus decreases fear memory through adenosine A1 receptors

    Yulan Li et al.
    A new strategy of memory consolidation disruption based on astrocyte and purinergic signaling, which leads to persistent fear memory attenuation accompanied by reduced fear-related anxiety behavior.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the adenosine A2A receptor coupled to an engineered heterotrimeric G protein

    Javier García-Nafría et al.
    The adenosine A2a receptor couples to the heterotrimeric G protein Gs using both conserved contacts seen in other complexes and, in addition, novel contacts to the beta subunit of the G protein.
    1. Cell Biology
    2. Immunology and Inflammation

    Immunosuppression via adenosine receptor activation by adenosine monophosphate released from apoptotic cells

    Hiroshi Yamaguchi et al.
    Apoptotic cells release molecules to recruit macrophages, but do not cause inflammation because they also secrete AMP that functions as a ‘calm down’ signal.
    1. Plant Biology

    A lectin receptor kinase as a potential sensor for extracellular nicotinamide adenine dinucleotide in Arabidopsis thaliana

    Chenggang Wang et al.
    Genetic and biochemical analyses demonstrate that cell-surface lectin receptors can potentially function as extracellular NAD+-binding receptors and provide direct evidence for extracellular NAD+ being a bona fide endogenous signaling molecule in plants.
    1. Neuroscience

    Striatal adenosine A2A receptor neurons control active-period sleep via parvalbumin neurons in external globus pallidus

    Xiang-Shan Yuan et al.
    Rostral and central striatum controls slow-wave sleep during active phase in mice.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Ligand modulation of sidechain dynamics in a wild-type human GPCR

    Lindsay D Clark et al.
    Generation of a highly deuterated 13C-methyl labeled wild-type GPCR sample is used to facilitate characterization of the molecular environments and fast ps-ns dynamics of sidechains when the receptor is bound to ligands of different efficacy.
    1. Immunology and Inflammation
    2. Medicine

    Methotrexate attenuates vascular inflammation through an adenosine-microRNA-dependent pathway

    Dafeng Yang et al.
    Investigation into methotrexate's effects in the vascular endothelium reveals it exerts anti-inflammatory effects through a unique adenosine-adenosine receptor A3-SMAD3/4-miR-181b signaling axis with implications for controlling vascular inflammation.
    1. Neuroscience

    Astrocytes contribute to synapse elimination via type 2 inositol 1,4,5-trisphosphate receptor-dependent release of ATP

    Junhua Yang et al.
    Astrocytes regulate the pruning of excitatory synapses during early life through ATP signaling.
    1. Neuroscience

    One bout of neonatal inflammation impairs adult respiratory motor plasticity in male and female rats

    Austin D Hocker et al.
    A single neonatal inflammatory event induces long-term impairments in two forms of adult respiratory motor plasticity, an important aspect of the control of breathing for compensation after injury or disease.
    1. Cell Biology

    Single-cell dynamics of pannexin-1-facilitated programmed ATP loss during apoptosis

    Hiromi Imamura et al.
    Cleavage of pannexin-1 channel by caspases facilitates the loss of intracellular ATP level and attenuates glycolytic metabolism of apoptotic cells.

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