Evidence map›Paper›PMID 23147003›Full record

ArticleScience translational medicine2012

Optogenetic and potassium channel gene therapy in a rodent model of focal neocortical epilepsy.

Robert C Wykes, Joost H Heeroma, Laura Mantoan, Kaiyu Zheng, Douglas C MacDonald, Karl Deisseroth, Kevan S Hashemi, Matthew C Walker, Stephanie Schorge, Dimitri M Kullmann

Abstract read
In one paragraph

Article in Science translational medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 148 papers.

0numbers the graph read from it
0cells of the map it votes in
148citing papers in PubMed
10.5field-weighted citation impact, top 1% 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

148 citing papers in PubMed, 272 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Genetic medicines for epilepsy: unlocking new avenues for seizure control.Frontiers in bioengineering and biotechnology · 2026
    Review
  7. Highlights from the Brain Conference 2026.Brain communications · 2026
    Article
  8. Article
  9. Article
  10. Gene therapies alleviate absence epilepsy associated withbioRxiv : the preprint server for biology · 2025
    Article
  11. State-of-the-art gene therapy in epilepsy.Current opinion in neurology · 2025
    Review
  12. Chemogenetics with PSAMGene therapy · 2025
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Adeno-Associated Viral Vectors in the Treatment of Epilepsy.International journal of molecular sciences · 2024
    Review
  19. Review
  20. Article

88 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Robert C WykesUCL Institute of Neurology, London WC1N 3BG, UK.
Joost H Heeroma
Laura Mantoan
Kaiyu Zheng
Douglas C MacDonald
Karl Deisseroth
Kevan S Hashemi
Matthew C Walker
Stephanie Schorge
Dimitri M Kullmann
University College London · GBOpen Source Science Project · USStanford University · US

Funding

Medical Research Council G0601440Medical Research Council G0801316Medical Research Council G0801316(87876)Medical Research Council G0802158Medical Research Council G0802158(89582)Medical Research Council G0900374Medical Research Council G116/147Wellcome Trust 086882Wellcome Trust 089924Wellcome Trust 095580
6 · The paper itself

Abstract

Neocortical epilepsy is frequently drug-resistant. Surgery to remove the epileptogenic zone is only feasible in a minority of cases, leaving many patients without an effective treatment. We report the potential efficacy of gene therapy in focal neocortical epilepsy using a rodent model in which epilepsy is induced by tetanus toxin injection in the motor cortex. By applying several complementary methods that use continuous wireless electroencephalographic monitoring to quantify epileptic activity, we observed increases in high frequency activity and in the occurrence of epileptiform events. Pyramidal neurons in the epileptic focus showed enhanced intrinsic excitability consistent with seizure generation. Optogenetic inhibition of a subset of principal neurons transduced with halorhodopsin targeted to the epileptic focus by lentiviral delivery was sufficient to attenuate electroencephalographic seizures. Local lentiviral overexpression of the potassium channel Kv1.1 reduced the intrinsic excitability of transduced pyramidal neurons. Coinjection of this Kv1.1 lentivirus with tetanus toxin fully prevented the occurrence of electroencephalographic seizures. Finally, administration of the Kv1.1 lentivirus to an established epileptic focus progressively suppressed epileptic activity over several weeks without detectable behavioral side effects. Thus, gene therapy in a rodent model can be used to suppress seizures acutely, prevent their occurrence after an epileptogenic stimulus, and successfully treat established focal epilepsy.

Indexed as

Genetic TherapyOptogeneticsAnimalsDisease Models, AnimalElectroencephalographyEpilepsies, PartialKv1.1 Potassium ChannelLentivirusMaleNeocortexNeuronsPyramidal CellsRatsRats, Sprague-DawleyTetanus ToxinKv1.1 Potassium ChannelTetanus Toxin

Identifiers

PMID23147003
PMCPMC3605784
OpenAlexW2134079336

What OpenQuestion holds

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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.