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Photocaged Kinase Inhibitors as Molecular Tools for Investigating Neurodegenerative Diseases

Total Cost €


EC-Contrib. €






 PCAGED-KI project word cloud

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

photolabile    cell    report    gt    lck    dependent    disorders    cns    immune    quencher    protein    active    temporal    form    microscopy    probe    switching    moiety    critical    decaging    caging    regulation    inhibitor    onto    energy    poorly    neurodegenerative    employed    introduction    activation    tool    enzymatic    effector    central    kinase    performed    simultaneously    dynamic    nervous    group    valuable    confocal    ad    release    prodrug    zebrafish    conventional    fret    cellular    manipulate    fluorescent    activated    320    proliferation    stimuli    compound    serving    alzheimer    visualise    apoptosis    responsive    quenching    transfer    model    lymphocyte    time    nm    kinases    inhibitors    spatial    aberrant    turn    play    light    differentiation    fluorescence    function    tyrosine    reporting    appropriate    microglia    quantitative    disease    consist    cells    site    regarding    back    unfortunately    give    frame    reside    exposure    innate   

Project "PCAGED-KI" data sheet

The following table provides information about the project.


Organization address
postcode: 405 30

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 Sweden [SE]
 Project website
 Total cost 173˙857 €
 EC max contribution 173˙857 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2017
 Duration (year-month-day) from 2017-10-01   to  2019-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    GOETEBORGS UNIVERSITET SE (GOETEBORG) coordinator 173˙857.00


 Project objective

Protein kinases play a critical role in a number of cellular processes, including cell proliferation, differentiation and apoptosis. Recently, the aberrant regulation of lymphocyte-specific protein tyrosine kinases (LCK) has been associated with the over activation of microglia cells (important immune effector cells that reside in the central nervous system, CNS) and in turn, the development of Alzheimer’s disease (AD). Unfortunately, the detail of LCK's dynamic function and the importance of quantitative, spatial and time-dependent parameters regarding microglia activation is poorly understood. As such, the ability to manipulate LCK activity using light would result in temporal control of enzymatic activity, thus serving as a valuable approach to probe the function of LCK in microglia cells and in turn, further our understanding of AD and related neurodegenerative disorders. While such studies cannot be performed using conventional LCK inhibitors, this project aims to control the enzymatic activity of LCK by the development of a stimuli-responsive release-and-report system, through the introduction of a photolabile 'caging' moiety onto a fluorescent kinase inhibitor. The caging group will also consist of an appropriate ‘quencher’, quenching the innate fluorescence properties of the inhibitor through energy transfer (FRET). Exposure to light (> 320 nm) will result in decaging of the prodrug to give the active form, while simultaneously switching ‘on’ the fluorescence — reporting back to the user that the compound has been activated. To demonstrate the potential of the release-and-report kinase inhibitor as a tool to probe LCK function in microglia cells, confocal microscopy will be employed to visualise the site of microglia activation and the time frame during CNS development in zebrafish model systems.


year authors and title journal last update
List of publications.
2019 Cassandra L. Fleming, Morten Grøtli, Joakim Andréasson
On‐Command Regulation of Kinase Activity using Photonic Stimuli
published pages: 318-326, ISSN: 2367-0932, DOI: 10.1002/cptc.201800253
ChemPhotoChem 3/6 2020-02-12
2018 Cassandra L. Fleming, Shiming Li, Morten Grøtli, Joakim Andréasson
Shining New Light on the Spiropyran Photoswitch: A Photocage Decides between cis – trans or Spiro-Merocyanine Isomerization
published pages: 14069-14072, ISSN: 0002-7863, DOI: 10.1021/jacs.8b09523
Journal of the American Chemical Society 140/43 2020-02-12
2019 Cassandra L. Fleming, Patrick A. Sandoz, Tord Inghardt, Björn Önfelt, Morten Grøtli, Joakim Andréasson
A Fluorescent Kinase Inhibitor that Exhibits Diagnostic Changes in Emission upon Binding
published pages: 15000-15004, ISSN: 1433-7851, DOI: 10.1002/anie.201909536
Angewandte Chemie International Edition 58/42 2020-02-12

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