Evidence map›Paper›PMID 20660766›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

GalR2-positive allosteric modulator exhibits anticonvulsant effects in animal models.

Xiaoying Lu, Edward Roberts, Fengcheng Xia, Manuel Sanchez-Alavez, Tianyu Liu, Roger Baldwin, Stephanie Wu, James Chang, Claude G Wasterlain, Tamas Bartfai

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 32 citations in OpenAlex.

  1. Insights into Potential Targets for Therapeutic Intervention in Epilepsy.International journal of molecular sciences · 2020
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Galanin receptors and ligands.Frontiers in endocrinology · 2012
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Neuropeptide receptor positive allosteric modulation in epilepsy: galanin modulation revealed.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Xiaoying LuMolecular and Integrative Neurosciences Department, The Scripps Research Institute, La Jolla, CA 92037, USA. xiaoying@scripps.edu
Edward Roberts
Fengcheng Xia
Manuel Sanchez-Alavez
Tianyu Liu
Roger Baldwin
Stephanie Wu
James Chang
Claude G Wasterlain
Tamas Bartfai
Laboratoire d’immunologie intégrative du cancer · FRScripps Research Institute · USUniversity of California, Los Angeles · USVA Greater Los Angeles Healthcare System · US

Funding

Developing GalR1/2 Agonists to Treat Nerve Gas Induced SeizureU01NS063560 · NINDS · SCRIPPS RESEARCH INSTITUTE, THE · PI BARTFAI, TAMAS · 2008 to 2010
$2.8M
Galanin and GalR2 Receptors in Antidepressant TreatmentsR01MH074055 · NIMH · SCRIPPS RESEARCH INSTITUTE, THE · PI BARTFAI, TAMAS · 2006 to 2009
$1.6M
NIMH NIH HHS R01 MH074055NIMH NIH HHS R01MH074055NINDS NIH HHS NS063560NINDS NIH HHS U01 NS063560
6 · The paper itself

Abstract

Galanin receptors type 1 (GalR1) and/or type 2 (GalR2) represent unique pharmacological targets for treatment of seizures and epilepsy. Previous studies have shown that the endogenous peptide ligand galanin exerts powerful anticonvulsant effect through activation of these two G protein-coupled receptors, which are highly expressed in the temporal lobe of rodent brain. Here we report the characterization of a putative GalR2-positive allosteric modulator CYM2503. CYM2503 potentiated the galanin-stimulated IP1 accumulation in HEK293 cells stably expressing GalR2 receptor, whereas it exhibited no detectable affinity for the (125)I galanin-binding site of GalR2 receptor, an effect consistent with that of a positive allosteric modulator. In the rat Li-pilocarpine status epilepticus model, CYM2503, injected intraperitoneally, increased the latency to first electrographic seizure and the latency to first stage 3 behavioral seizure, decreased the latency to the establishment of status epilepticus, and dramatically decreased the mortality. In a Li-pilocarpine seizure model in mice, CYM2503 increased the latency to first electrographic seizure and decreased the total time in seizure. CYM2503 also attenuated electroshock-induced seizures in mice. Thus, CYM2503 provides a starting point for the development of anticonvulsant therapy using the galanin R2 receptor as target.

Indexed as

Allosteric RegulationAnimalsAnticonvulsantsCarbamatesCell LineDipeptidesDisease Models, AnimalElectroshockHumansMaleMiceMice, Inbred C57BLPilocarpineQuinolonesRatsRats, Wistar(9H-fluoren-9-yl)methyl(1-((6-(tert-butoxycarbonyl)amino-1-((4-methyl-2-oxo-1,2-dihydroquinolin-7-yl)amino)-1-oxohexan-2-yl)amino)-3-cyclohexyl-1-oxopropan-2-yl)carbamateAnticonvulsantsCarbamatesDipeptidesPilocarpineQuinolonesReceptor, Galanin, Type 1Receptor, Galanin, Type 2Recombinant Proteins

Identifiers

PMID20660766
PMCPMC2930524
OpenAlexW2078690325

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.