Evidence map›Paper›PMID 22153080›Full record

ArticleCell2011

Suppression of PKR promotes network excitability and enhanced cognition by interferon-γ-mediated disinhibition.

Ping Jun Zhu, Wei Huang, Djanenkhodja Kalikulov, Jong W Yoo, Andon N Placzek, Loredana Stoica, Hongyi Zhou, John C Bell, Michael J Friedlander, Krešimir Krnjević and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 138 papers.

0numbers the graph read from it
0cells of the map it votes in
138citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

138 citing papers in PubMed, 209 citations in OpenAlex.

  1. Article
  2. Distinct cell type-specific mechanisms underlie cognitive dysfunction during persistent integrated stress response activation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  4. Article
  5. Article
  6. Article
  7. The ISR downstream effector ATF4 promotes mGluR-dependent long-term depression and associated behavior.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Molecular Signatures of Id2- and Ascl4-Induced Wiring of Adult Hippocampal Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  9. Review
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  11. Review
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  13. Review
  14. Article
  15. PKR Inhibition Prevents Neuroinflammation and Rescues Depressive-Like Behaviors via BDNF/TrkB Signaling.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Ping Jun ZhuDepartment of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA.
Wei Huang
Djanenkhodja Kalikulov
Jong W Yoo
Andon N Placzek
Loredana Stoica
Hongyi Zhou
John C Bell
Michael J Friedlander
Krešimir Krnjević
Jeffrey L Noebels
Mauro Costa-Mattioli
Baylor College of Medicine · USMcGill University · CA

Funding

UNDERSTANDING FXTAS AMONG MALES WITH THE FMR1 PREMUTATIONP30HD024064 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI TOLIAS, KIMBERLY R · 1988 to 2013
$29.4M
PLASTICITY IN DEVELOPING EPILEPTIC BRAINR01NS029709 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI NOEBELS, JEFFREY · 1991 to 2025
$9.1M
The integrated stress response in cognitive disordersR01NS076708 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI PFAFFINGER, PAUL, RAY, RUSSELL S · 2012 to 2025
$7.9M
Development of Synaptic Plasticity in Visual CortexR01EY012782 · NEI · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI FRIEDLANDER, MICHAEL J · 2000 to 2010
$2.8M
Mechanisms of synaptic plasticity and memoryR01MH096816 · NIMH · BAYLOR COLLEGE OF MEDICINE · PI COSTA-MATTIOLI, MAURO · 2012 to 2016
$1.9M
NEI NIH HHS EY12782NEI NIH HHS R01 EY012782NICHD NIH HHS HD24064NICHD NIH HHS P30 HD024064NIMH NIH HHS R01 MH096816NINDS NIH HHS NS 29709NINDS NIH HHS R01 NS029709NINDS NIH HHS R01 NS076708
6 · The paper itself

Abstract

The double-stranded RNA-activated protein kinase (PKR) was originally identified as a sensor of virus infection, but its function in the brain remains unknown. Here, we report that the lack of PKR enhances learning and memory in several behavioral tasks while increasing network excitability. In addition, loss of PKR increases the late phase of long-lasting synaptic potentiation (L-LTP) in hippocampal slices. These effects are caused by an interferon-γ (IFN-γ)-mediated selective reduction in GABAergic synaptic action. Together, our results reveal that PKR finely tunes the network activity that must be maintained while storing a given episode during learning. Because PKR activity is altered in several neurological disorders, this kinase presents a promising new target for the treatment of cognitive dysfunction. As a first step in this direction, we show that a selective PKR inhibitor replicates the Pkr(-/-) phenotype in WT mice, enhancing long-term memory storage and L-LTP.

Indexed as

Long-Term PotentiationAnimalseIF-2 KinaseElectrophysiologyHippocampusInterferon-gammaIn Vitro TechniquesMiceMice, 129 StrainMice, Inbred C57BLSynapseseIF-2 KinaseInterferon-gamma

Identifiers

PMID22153080
PMCPMC3569515
OpenAlexW2058333349

What OpenQuestion holds

Textmetadata
LicenceTDM
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.