Evidence map›Paper›PMID 23550801›Full record

ArticleBritish journal of pharmacology2013

Identification through high-throughput screening of 4'-methoxyflavone and 3',4'-dimethoxyflavone as novel neuroprotective inhibitors of parthanatos.

A A Fatokun, J O Liu, V L Dawson, T M Dawson

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.5field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Anticancer Activity ofBiomolecules · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. PARP-1-Associated Pathological Processes: Inhibition by Natural Polyphenols.International journal of molecular sciences · 2021
    Review
  8. Article
  9. Article
  10. Physiological and Pathological Factors Affecting Drug Delivery to the Brain by Nanoparticles.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Review
  11. Preference forXenobiotica; the fate of foreign compounds in biological systems · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

4 authors at 2 institutions in 1 country.

A A FatokunNeuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. amos.fatokun@nottingham.ac.uk
J O Liu
V L Dawson
T M Dawson
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Poly (ADP-Ribose) Signalling in Glutamate ExcitotoxicityP01NS039148 · NINDS · JOHNS HOPKINS UNIVERSITY · PI DAWSON, TED M. · 1999 to 2008
$11.5M
Poly (ADP-Ribose) and AIF in Neuronal InjuryR01NS067525 · NINDS · JOHNS HOPKINS UNIVERSITY · PI VALINA L. DAWSON, Ted M. Dawson · 2010 to 2026
$6.0M
Parthanatos, AIF and PAAN-1 in Neuronal InjuryR37NS067525 · NINDS · JOHNS HOPKINS UNIVERSITY · PI DAWSON, TED M., DAWSON, VALINA L. · 2015 to 2021
$5.3M
NINDS NIH HHS NS39148NINDS NIH HHS NS67525NINDS NIH HHS P01 NS039148NINDS NIH HHS R01 NS067525NINDS NIH HHS R37 NS067525
6 · The paper itself

Abstract

background and purposeThe current lack of disease-modifying therapeutics to manage neurological and neurodegenerative conditions justifies the development of more efficacious agents. One distinct pathway leading to neuronal death in these conditions and which represents a very promising and attractive therapeutic target is parthanatos, involving overactivation of PARP-1. We therefore sought to identify small molecules that could be neuroprotective by targeting the pathway. EXPERIMENTAL APPROACH: Using HeLa cells, we developed and optimized an assay for high-throughput screening of about 5120 small molecules. Structure-activity relationship (SAR) study was carried out in HeLa and SH-SY5Y cells for molecules related to the initial active compound. The neuroprotective ability of each active compound was tested in cortical neuronal cultures. KEY

results4'-Methoxyflavone (4MF) showed activity by preventing the decrease in cell viability of HeLa and SH-SY5Y cells caused by the DNA-alkylating agent, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), which induces parthanatos. A similar compound from the SAR study, 3',4'-dimethoxyflavone (DMF), also showed significant activity. Both compounds reduced the synthesis and accumulation of poly (ADP-ribose) polymer and protected cortical neurones against cell death induced by NMDA. CONCLUSIONS AND IMPLICATIONS: Our data reveal additional neuroprotective members of the flavone class of flavonoids and show that methoxylation of the parent flavone structure at position 4' confers parthanatos-inhibiting activity while additional methoxylation at position 3', reported by others to improve metabolic stability, does not destroy the activity. These molecules may therefore serve as leads for the development of novel neurotherapeutics for the management of neurological and neurodegenerative conditions.

Indexed as

Drug DiscoveryAlkylating AgentsAnimalsCell DeathCell Line, TumorCells, CulturedCell SurvivalCerebral CortexEmbryo, MammalianEnzyme ActivationFlavonesFlavonoidsHigh-Throughput Screening AssaysHumansMethylnitronitrosoguanidineMice, Inbred Strains3',4'-dimethoxyflavone4'-methoxyflavoneAlkylating AgentsFlavonesFlavonoidsMethylnitronitrosoguanidineNerve Tissue ProteinsNeuroprotective AgentsPARP1 protein, humanPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) PolymerasesSmall Molecule Libraries

Identifiers

PMID23550801
PMCPMC3831707
OpenAlexW1501041661

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.