Evidence map›Paper›PMID 25333939›Full record

ArticleInorganic chemistry2014

Small bifunctional chelators that do not disaggregate amyloid β fibrils exhibit reduced cellular toxicity.

Anuj K Sharma, Jaekwang Kim, John T Prior, Nicholas J Hawco, Nigam P Rath, Jungsu Kim, Liviu M Mirica

Open access · bronzeAbstract read
In one paragraph

Article in Inorganic chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Rational Design of a Cu Chelator That Mitigates Cu-Induced ROS Production by Amyloid Beta.Chembiochem : a European journal of chemical biology · 2022
    Article
  6. Article
  7. Article
  8. Design of a multivalent bifunctional chelator for diagnosticProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  9. Metals in Imaging of Alzheimer's Disease.International journal of molecular sciences · 2020
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Evaluation ofJournal of the American Chemical Society · 2017
    Article
  19. Article
  20. Development of multifunctional heterocyclic Schiff base as a potential metal chelator: a comprehensive spectroscopic approach towards drug discovery.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2017
    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

7 authors at 2 institutions in 1 country.

Anuj K SharmaDepartment of Chemistry, Washington University , One Brookings Drive, St. Louis, Missouri 63130-4899, United States.
Jaekwang Kim
John T Prior
Nicholas J Hawco
Nigam P Rath
Jungsu Kim
Liviu M Mirica
Washington University in St. Louis · USUniversity of Missouri–St. Louis · US

Funding

WASHINGTON UNIVERSITY ALZHEIMERS DISEASE RESEARCH CENTERP50AG005681 · NIA · WASHINGTON UNIVERSITY · PI MORRIS, JOHN · 1985 to 2019
$52.1M
Translational Neuroscientist and the Hope CenterP30NS069329 · NINDS · WASHINGTON UNIVERSITY · PI GOATE, ALISON M · 2009 to 2010
$1.4M
NIA NIH HHS P50 AG005681NIA NIH HHS P50-AG05681NINDS NIH HHS P30 NS069329NINDS NIH HHS P30NS69329
6 · The paper itself

Abstract

Multifunctional metal chelators that can modulate the amyloid β (Aβ) peptide aggregation and its interaction with metal ions such as copper and zinc hold considerable promise as therapeutic agents for Alzheimer's disease (AD). However, specific rather than systemic metal chelation by these compounds is needed in order to limit any side effects. Reported herein are two novel small bifunctional chelators, 2-[2-hydroxy-4-(diethylamino)phenyl]benzothiazole (L1) and 2-(2-hydroxy-3-methoxyphenyl)benzothiazole (L2), in which the metal-binding donor atoms are integrated within a molecular framework derived from the amyloid-binding fluorescent dye thioflavin T (ThT). The metal-binding properties of L1 and L2 were probed by pH spectrophotometric titrations to determine their pKa values and the corresponding metal complex stability constants, and the isolated metal complexes were structurally characterized. The amyloid-fibril-binding properties of L1 and L2 were investigated by fluorescence titrations and ThT competition assays. Interestingly, L1 and L2 do not lead to the formation of neurotoxic Aβ42 oligomers in the presence or absence of metal ions, as observed by native gel electrophoresis, Western blotting, and transmission electron microscopy. In addition, L1 and L2 were able to reduce the cell toxicity of preformed Aβ42 oligomers and of the copper-stabilized Aβ42 oligomers. Given their ability to reduce the toxicity of soluble Aβ42 and Cu-Aβ42 species, L1 and L2 are promising lead compounds for the development of chemical agents that can control the neurotoxicity of soluble Aβ42 species in AD.

Indexed as

Amyloid beta-PeptidesAnimalsCell Line, TumorCell SurvivalChelating AgentsClioquinolCrystallography, X-RayMiceModels, MolecularMolecular StructureProtein AggregatesProtein Aggregation, PathologicalAmyloid beta-PeptidesChelating AgentsClioquinolProtein Aggregates

Identifiers

PMID25333939
PMCPMC4220862
OpenAlexW2330115237

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.