74 research outputs found

    Modulateurs du transport vésiculaire du glutamate (développement d'outils pharmacologiques et de diagnostic pour la maladie d'Alzheimer)

    Get PDF
    Résumé en français confidentielRésumé en anglais confidentielPARIS5-Bibliotheque electronique (751069902) / SudocPARIS-BIUM-Bib. électronique (751069903) / SudocSudocFranceF

    Rose Bengal analogs and vesicular glutamate transporters (VGLUTs)

    No full text
    International audienc

    Stimuler la rĂ©ponse interfĂ©ron de type I avec des petites molĂ©cules : le renouveau d’une vieille idĂ©e

    No full text
    Les interfĂ©rons de type I jouent un rĂŽle central dans la mise en place d’une rĂ©ponse immunitaire innĂ©e contre les infections virales et les cellules tumorales. Peu aprĂšs leur dĂ©couverte en 1957, plusieurs Ă©quipes ont recherchĂ© des petites molĂ©cules capables d’induire l’expression de ces cytokines Ă  des fins thĂ©rapeutiques. Un ensemble de composĂ©s actifs chez la souris ont ainsi Ă©tĂ© identifiĂ©s, mais en raison de leur relative inefficacitĂ© chez l’homme pour des raisons incomprises Ă  l’époque, ces travaux ont Ă©tĂ© abandonnĂ©s et sont tombĂ©s dans l’oubli. Ces derniĂšres annĂ©es, la caractĂ©risation des rĂ©cepteurs impliquĂ©s dans la reconnaissance des pathogĂšnes, des voies de signalisation qu’ils activent, ainsi que la dĂ©couverte des cellules dendritiques plasmacytoĂŻdes ont rĂ©volutionnĂ© notre comprĂ©hension de l’immunitĂ© innĂ©e. Ces dĂ©couvertes et les nouvelles technologies de criblages Ă  haut dĂ©bit ont ravivĂ© l’intĂ©rĂȘt pour les petites molĂ©cules capables d’induire les interfĂ©rons de type I. Les preuves de leur efficacitĂ© thĂ©rapeutique chez l’homme sont attendues trĂšs prochainement

    Leveraging VGLUT3 Functions to Untangle Brain Dysfunctions

    No full text
    International audienceVesicular glutamate transporters (VGLUTs) were long thought to be specific markers of glutamatergic excitatory transmission. The discovery, two decades ago, of the atypical VGLUT3 has thoroughly modified this oversimplified view. VGLUT3 is strategically expressed in discrete populations of glutamatergic, cholinergic, serotonergic, and even GABAergic neurons. Recent reports show the subtle, but critical, implications of VGLUT3-dependent glutamate co transmission and its roles in the regulation of diverse brain functions and dysfunctions. Progress in the neuropharmacology of VGLUT3 could lead to decisive breakthroughs in the treatment of Parkinson's disease (PD), addiction, eating disorders, anxiety, presbycusis, or pain. This review summarizes recent findings on VGLUT3 and its vesicular underpinnings as well as on possible ways to target this atypical transporter for future therapeutic strategies

    SELECTIVE ORGANIC CATION TRANSPORTERS INHIBITORS FOR THE TREATMENT OF DEPRESSIVE DISORDERS

    No full text
    The invention relates to organic cation transporters (OCTs) inhibitors of Formula (A), as well as their pharmaceutically acceptable tautomers, salts or solvates. The invention is also directed to pharmaceutical compositions comprising such OCTs inhibitor of Formula (A) and their use for treating and/or preventing mood-related disorders such as depressive disorders

    Molecular, Structural, Functional, and Pharmacological Sites for Vesicular Glutamate Transporter Regulation

    No full text
    International audienceVesicular glutamate transporters (VGLUTs) control quantal size of glutamatergic transmission and have been the center of numerous studies over the past two decades. VGLUTs contain two independent transport modes that facilitate glutamate packaging into synaptic vesicles and phosphate (Pi) ion transport into the synaptic terminal. While a transmembrane proton electrical gradient established by a vacuolar-type ATPase powers vesicular glutamate transport, recent studies indicate that binding sites and flux properties for chloride, potassium, and protons within VGLUTs themselves regulate VGLUT activity as well. These intrinsic ionic binding and flux properties of VGLUTs can therefore be modulated by neurophysiological conditions to affect levels of glutamate available for release from synapses. Despite their extraordinary importance, specific and high-affinity pharmacological compounds that interact with these sites and regulate VGLUT function, distinguish between the various modes of transport, and the different isoforms themselves, are lacking. In this review, we provide an overview of the physiologic sites for VGLUT regulation that could modulate glutamate release in an over-active synapse or in a disease state
    • 

    corecore