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OptoNMDA

Optical strategies to investigate NMDA receptor functional diversity and its therapeutic potential

Total Cost €

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EC-Contrib. €

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Partnership

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 Outcomes and results

 OptoNMDA project word cloud

Explore the words cloud of the OptoNMDA project. It provides you a very rough idea of what is the project "OptoNMDA" about.

models    temporal    ex    excitatory    proposes    roles    opto    glun2a    physiological    signalling    brain    selectively    precise    generally    tools    physiology    orthosteric    counteract    subunits    nmdar    function    usually    site    tetramers    encoded    neuronal    derivatives    subunit    isomerize    glun1    glutamate    competitive    fundamental    synapses    genetic    individual    polyamine    pathology    population    mammalian    critical    hypo    act    stroke    dysregulation    optical    receptor    active    configuration    compounds    ing    pathologies    lacking    plasticity    nmda    mental    convertible    circuit    spatio    retardation    synaptic    consists    subtypes    inactive    gated    allosteric    play    preparations    manner    modulating    receptors    class    anatomical    optonmda    pharmacological    functional    strategies    vivo    nmdars    reversibly    transmission    allostery    sites    glun2    biophysical    therapeutic    form    photo    glun2b    containing    innovative    manipulation    genes    schizophrenia    neurotransmitter    light    deleterious   

Project "OptoNMDA" data sheet

The following table provides information about the project.

Coordinator		 INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE 

Organization address
address: RUE DE TOLBIAC 101
city: PARIS
postcode: 75654
website: www.inserm.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.
 Coordinator Country France [FR]
 Project website http://www.mony.fr/optoNMDA.shtml
 Total cost 185˙076 €
 EC max contribution 185˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-RI
 Starting year 2016
 Duration (year-month-day) from 2016-04-01   to  2018-07-21

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE FR (PARIS) coordinator 115˙672.00
2    ECOLE NORMALE SUPERIEURE FR (PARIS CEDEX 05) participant 69˙403.00

Map

 Project objective

NMDA receptors (NMDARs) form a class of receptors gated by glutamate, the major neurotransmitter in the mammalian brain. These receptors play fundamental roles in synaptic transmission and plasticity. They are also involved in numerous pathologies including stroke, mental retardation or schizophrenia. NMDARs are thus targets of strong therapeutic interest. NMDARs are tetramers usually composed of two GluN1 and two GluN2 subunits encoded by four different genes (GluN2A-D), resulting in a large number of receptor subtypes having distinct anatomical, biophysical, pharmacological and signalling properties. Understanding the functional role of these individual subtypes in the brain is of great importance to develop new strategies to counteract the deleterious effects of NMDAR dysregulation. However, tools allowing targeting of a specific population of NMDARs in a given neuronal circuit are currently lacking. The OptoNMDA research programme proposes the development of an innovative optical approach to selectively enhance the activity of NMDARs containing the GluN2B subunit (GluN2B-NMDARs) in ex vivo and in vivo preparations. This approach consists in developing photo-convertible polyamine derivatives that can reversibly isomerize between an inactive and active configuration with light to act on the GluN2B-NMDAR polyamine allosteric modulating site in a precise spatio-temporal manner (opto-allostery). I will study the physiological and potential therapeutic roles of these compounds by testing their effects on synaptic transmission and plasticity and on genetic models of NMDAR hypo-function. Compared to previous studies targeting orthosteric (competitive) sites, the opto-allostery approach will allow manipulation of NMDARs in a more specific and physiological manner. This project should thus provide critical novel information on NMDARs, and more generally, on the physiology and pathology of excitatory synapses.

 Publications

year authors and title journal last update
List of publications.
2018 Viktoria Klippenstein, Laetitia Mony, Pierre Paoletti
Probing Ion Channel Structure and Function Using Light-Sensitive Amino Acids
published pages: 436-451, ISSN: 0968-0004, DOI: 10.1016/j.tibs.2018.02.012 		Trends in Biochemical Sciences 43/6 2019-07-26

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