Evidence map›Paper›PMID 25995455›Full record

ArticleThe Journal of biological chemistry2015

Identification of a Compound That Disrupts Binding of Amyloid-β to the Prion Protein Using a Novel Fluorescence-based Assay.

Emmanuel Risse, Andrew J Nicoll, William A Taylor, Daniel Wright, Mayank Badoni, Xiaofan Yang, Mark A Farrow, John Collinge

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Direct interaction of DNMT inhibitors to PrPActa pharmaceutica Sinica. B · 2019
    Article
  8. Article
  9. Discovery of antimicrobial compounds targeting bacterial type FAD synthetases.Journal of enzyme inhibition and medicinal chemistry · 2018
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Amyloid-β Receptors: The Good, the Bad, and the Prion Protein.The Journal of biological chemistry · 2016
    Review
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Emmanuel RisseFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom.
Andrew J NicollFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom.
William A TaylorFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom.
Daniel WrightFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom.
Mayank BadoniFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom.
Xiaofan YangFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom.
Mark A FarrowFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom m.farrow@prion.ucl.ac.uk.
John CollingeFrom the Medical Research Council (MRC) Prion Unit and Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, United Kingdom j.collinge@prion.ucl.ac.uk.
MRC Prion Unit · GBMedical Research Council · GBUniversity College London · GB

Funding

Department of HealthMedical Research Council MC_EX_L023180/1Medical Research Council MC_EX_MR/L023180/1Medical Research Council MC_U123192748
6 · The paper itself

Abstract

The prion protein (PrP) has been implicated both in prion diseases such as Creutzfeldt-Jakob disease, where its monomeric cellular isoform (PrP(C)) is recruited into pathogenic self-propagating polymers of misfolded protein, and in Alzheimer disease, where PrP(C) may act as a receptor for synaptotoxic oligomeric forms of amyloid-β (Aβ). There has been considerable interest in identification of compounds that bind to PrP(C), stabilizing its native fold and thereby acting as pharmacological chaperones to block prion propagation and pathogenesis. However, compounds binding PrP(C) could also inhibit the binding of toxic Aβ species and may have a role in treating Alzheimer disease, a highly prevalent dementia for which there are currently no disease-modifying treatments. However, the absence of a unitary, readily measurable, physiological function of PrP makes screening for ligands challenging, and the highly heterogeneous nature of Aβ oligomer preparations makes conventional competition binding assays difficult to interpret. We have therefore developed a high-throughput screen that utilizes site-specifically fluorescently labeled protein to identify compounds that bind to PrP and inhibit both Aβ binding and prion propagation. Following a screen of 1,200 approved drugs, we identified Chicago Sky Blue 6B as the first small molecule PrP ligand capable of inhibiting Aβ binding, demonstrating the feasibility of development of drugs to block this interaction. The interaction of Chicago Sky Blue 6B was characterized by isothermal titration calorimetry, and its ability to inhibit Aβ binding and reduce prion levels was established in cell-based assays.

Indexed as

Amyloid beta-PeptidesCalorimetryDrug DiscoveryHigh-Throughput Screening AssaysHumansProtein BindingPrPC ProteinsTrypan BlueAmyloid beta-Peptidespontamine sky bluePrPC ProteinsTrypan BlueAlzheimer diseaseamyloid-beta (AB)drug discoveryfluorescence anisotropyhigh-throughput screening (HTS)isothermal titration calorimetry (ITC)neurodegenerative diseaseprion

Identifiers

PMID25995455
PMCPMC4505445
OpenAlexW1634717229

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.