Evidence map›Paper›PMID 26776514›Full record

ArticleCell reports2016

Porcupine Controls Hippocampal AMPAR Levels, Composition, and Synaptic Transmission.

Nadine Erlenhardt, Hong Yu, Kavitha Abiraman, Tokiwa Yamasaki, Jacques I Wadiche, Susumu Tomita, David S Bredt

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
  2. Preclinical Evaluation of [Molecular imaging and biology · 2026
    Article
  3. Review
  4. Article
  5. The role of Evi/Wntless in exporting Wnt proteins.Development (Cambridge, England) · 2023
    Review
  6. Article
  7. Article
  8. Porcn is essential for growth and invagination of the mammalian optic cup.Frontiers in cell and developmental biology · 2022
    Article
  9. Article
  10. Synaptic Adaptations at the Rostromedial Tegmental Nucleus Underlie Individual Differences in Cocaine Avoidance Behavior.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  11. Article
  12. AMPA receptor structure and auxiliary subunits.The Journal of physiology · 2021
    Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. AMPA Receptor Auxiliary Proteins of the CKAMP Family.International journal of molecular sciences · 2019
    Review
  18. Loss ofDisease models & mechanisms · 2019
    Article
  19. Article
  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

7 authors at 5 institutions in 2 countries.

Nadine ErlenhardtNeuroscience Discovery, Janssen Pharmaceutical Companies of Johnson & Johnson, 3210 Merryfield Row, San Diego, CA 92121, USA; Institute of Neural and Sensory Physiology, Medical Faculty, University of Düsseldorf, 40225 Düsseldorf, Germany.
Hong YuNeuroscience Discovery, Janssen Pharmaceutical Companies of Johnson & Johnson, 3210 Merryfield Row, San Diego, CA 92121, USA.
Kavitha AbiramanDepartment of Neurobiology, McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Tokiwa YamasakiCNNR program, Department of Cellular and Molecular Physiology, Yale University School of Medicine, 295 Congress Avenue BCMM441, P.O. Box 208026, New Haven, CT 06510, USA.
Jacques I WadicheDepartment of Neurobiology, McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Susumu TomitaCNNR program, Department of Cellular and Molecular Physiology, Yale University School of Medicine, 295 Congress Avenue BCMM441, P.O. Box 208026, New Haven, CT 06510, USA.
David S BredtNeuroscience Discovery, Janssen Pharmaceutical Companies of Johnson & Johnson, 3210 Merryfield Row, San Diego, CA 92121, USA. Electronic address: dbredt@its.jnj.com.
University of Alabama at Birmingham · USYale University · USHeinrich Heine University Düsseldorf · DEJanssen (United States) · USJohnson & Johnson (United States) · US

Funding

Regulation of glutamate receptors by calcium-dependent protein kinasesR01MH077939 · NIMH · YALE UNIVERSITY · PI TOMITA, SUSUMU · 2008 to 2023
$5.2M
Timing of Neurotransmitter ReleaseR01NS065920 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI WADICHE, JACQUES · 2009 to 2018
$3.2M
Mechanism for Regulating Kainate-Type Glutamate Receptor ActivityR01MH085080 · NIMH · YALE UNIVERSITY · PI TOMITA, SUSUMU · 2010 to 2014
$2.0M
NIMH NIH HHS MH085080NIMH NIH HHS R01 MH077939NIMH NIH HHS R01 MH085080NINDS NIH HHS NS065920NINDS NIH HHS R01 NS065920
6 · The paper itself

Abstract

AMPA receptor (AMPAR) complexes contain auxiliary subunits that modulate receptor trafficking and gating. In addition to the transmembrane AMPAR regulatory proteins (TARPs) and cornichons (CNIH-2/3), recent proteomic studies identified a diverse array of additional AMPAR-associated transmembrane and secreted partners. We systematically surveyed these and found that PORCN and ABHD6 increase GluA1 levels in transfected cells. Knockdown of PORCN in rat hippocampal neurons, which express it in high amounts, selectively reduces levels of all tested AMPAR complex components. Regulation of AMPARs is independent of PORCN's membrane-associated O-acyl transferase activity. PORCN knockdown in hippocampal neurons decreases AMPAR currents and accelerates desensitization and leads to depletion of TARP γ-8 from AMPAR complexes. Conditional PORCN knockout mice also exhibit specific changes in AMPAR expression and gating that reduce basal synaptic transmission but leave long-term potentiation intact. These studies define additional roles for PORCN in controlling synaptic transmission by regulating the level and composition of hippocampal AMPAR complexes.

Indexed as

Synaptic TransmissionAcyltransferasesAnimalsCells, CulturedHEK293 CellsHippocampusHumansLong-Term PotentiationMembrane ProteinsMiceNeuronsNuclear ProteinsProtein BindingRatsReceptors, AMPAXenopusAcyltransferasesMembrane ProteinsNuclear ProteinsPorcn protein, mouseReceptors, AMPATARP

Identifiers

PMID26776514
PMCPMC4955627
OpenAlexW2238529573

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.