Evidence map›Paper›PMID 23806960›Full record

ArticleScientific reports2013

Diacylglycerol lipase α manipulation reveals developmental roles for intercellular endocannabinoid signaling.

Erik Keimpema, Alán Alpár, Fiona Howell, Katarzyna Malenczyk, Carl Hobbs, Yasmin L Hurd, Masahiko Watanabe, Kenji Sakimura, Masanobu Kano, Patrick Doherty and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.9field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Genes · 2021
    Review
  7. CBScientific reports · 2021
    Article
  8. Druggable Targets in Endocannabinoid Signaling.Advances in experimental medicine and biology · 2020
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. 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

11 authors at 7 institutions in 5 countries.

Erik KeimpemaDivision of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden.
Alán Alpár
Fiona Howell
Katarzyna Malenczyk
Carl Hobbs
Yasmin L Hurd
Masahiko Watanabe
Kenji Sakimura
Masanobu Kano
Patrick Doherty
Tibor Harkany
Karolinska Institutet · SEKing's College London · GBHokkaido University · JPIcahn School of Medicine at Mount Sinai · USNiigata University · JPThe University of Tokyo · JPUniversity of Aberdeen · GB

Funding

The neuronal basis of cannabis-induced developmental deficits in the CNSR01DA023214 · NIDA · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI HURD, YASMIN L. · 2008 to 2012
$1.6M
NIDA NIH HHS R01 DA023214
6 · The paper itself

Abstract

Endocannabinoids are small signaling lipids, with 2-arachidonoylglycerol (2-AG) implicated in modulating axonal growth and synaptic plasticity. The concept of short-range extracellular signaling by endocannabinoids is supported by the lack of trans-synaptic 2-AG signaling in mice lacking sn-1-diacylglycerol lipases (DAGLs), synthesizing 2-AG. Nevertheless, how far endocannabinoids can spread extracellularly to evoke physiological responses at CB₁ cannabinoid receptors (CB₁Rs) remains poorly understood. Here, we first show that cholinergic innervation of CA1 pyramidal cells of the hippocampus is sensitive to the genetic disruption of 2-AG signaling in DAGLα null mice. Next, we exploit a hybrid COS-7-cholinergic neuron co-culture system to demonstrate that heterologous DAGLα overexpression spherically excludes cholinergic growth cones from 2-AG-rich extracellular environments, and minimizes cell-cell contact in vitro. CB₁R-mediated exclusion responses lasted 3 days, indicating sustained spherical 2-AG availability. Overall, these data suggest that extracellular 2-AG concentrations can be sufficient to activate CB₁Rs along discrete spherical boundaries to modulate neuronal responsiveness.

Indexed as

Signal TransductionAnimalsArachidonic AcidsCoculture TechniquesEndocannabinoidsGlyceridesLipoprotein LipaseMiceMice, Inbred C57BLArachidonic AcidsEndocannabinoidsGlyceridesglyceryl 2-arachidonateLipoprotein Lipase

Identifiers

PMID23806960
PMCPMC3695556
OpenAlexW1995504177

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.