Evidence map›Paper›PMID 19759535›Full record

ArticleNature2009

Integration of neuronal clones in the radial cortical columns by EphA and ephrin-A signalling.

Masaaki Torii, Kazue Hashimoto-Torii, Pat Levitt, Pasko Rakic

Open access · greenAbstract read
In one paragraph

Article in Nature, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% 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

85 citing papers in PubMed, 1 synthesis or guideline pooled it, 140 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Developmental trajectories of GABAergic cortical interneurons are sequentially modulated by dynamicProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Review
  9. Article
  10. Deciphering neural heterogeneity through cell lineage tracing.Cellular and molecular life sciences : CMLS · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Approaches to Manipulate Ephrin-A:EphA Forward Signaling Pathway.Pharmaceuticals (Basel, Switzerland) · 2020
    Review
  17. Article
  18. Article
  19. FLRTing Neurons in Cortical Migration During Cerebral Cortex Development.Frontiers in cell and developmental biology · 2020
    Review
  20. Article

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

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

4 authors at 1 institution in 1 country.

Masaaki ToriiDepartment of Neurobiology and Kavli Institute for Neuroscience, Yale University School of Medicine, 333 Cedar Street, New Haven, Connecticut 06510, USA. masaaki.torii@yale.edu
Kazue Hashimoto-Torii
Pat Levitt
Pasko Rakic
Yale University · US

Funding

NEUROGENETIC PROCESSES IN THE FETAL BRAINR01NS014841 · NINDS · YALE UNIVERSITY · PI RAKIC, PASKO · 1985 to 2015
$10.4M
Origin of Cortical Species-specific Distinctions.R01DA023999 · NIDA · YALE UNIVERSITY · PI RAKIC, PASKO · 2008 to 2019
$7.9M
Origin of Cortical Species-specific DistinctionsR37DA023999 · NIDA · YALE UNIVERSITY · PI PASKO RAKIC · 2020 to 2026
$5.6M
STRESS ACTIVATED PROTEIN KINASE IN NEURONAL APOPTOSISR01NS038296 · NINDS · YALE UNIVERSITY · PI RAKIC, PASKO · 1999 to 2010
$2.9M
Development of Reciprocal Neural CircuitryR01DA022785 · NIDA · VANDERBILT UNIVERSITY · PI LEVITT, PAT · 2007 to 2011
$1.7M
NIDA NIH HHS R01 DA022785NIDA NIH HHS R01 DA023999NIDA NIH HHS R37 DA023999NINDS NIH HHS R01 NS014841NINDS NIH HHS R01 NS038296
6 · The paper itself

Abstract

The cerebral cortex is a laminated sheet of neurons composed of the arrays of intersecting radial columns. During development, excitatory projection neurons originating from the proliferative units at the ventricular surface of the embryonic cerebral vesicles migrate along elongated radial glial fibres to form a cellular infrastructure of radial (vertical) ontogenetic columns in the overlaying cortical plate. However, a subpopulation of these clonally related neurons also undergoes a short lateral shift and transfers from their parental to the neighbouring radial glial fibres, and intermixes with neurons originating from neighbouring proliferative units. This columnar organization acts as the primary information processing unit in the cortex. The molecular mechanisms, role and significance of this lateral dispersion for cortical development are not understood. Here we show that an Eph receptor A (EphA) and ephrin A (Efna) signalling-dependent shift in the allocation of clonally related neurons is essential for the proper assembly of cortical columns. In contrast to the relatively uniform labelling of the developing cortical plate by various molecular markers and retrograde tracers in wild-type mice, we found alternating labelling of columnar compartments in Efna knockout mice that are caused by impaired lateral dispersion of migrating neurons rather than by altered cell production or death. Furthermore, in utero electroporation showed that lateral dispersion depends on the expression levels of EphAs and ephrin-As during neuronal migration. This so far unrecognized mechanism for lateral neuronal dispersion seems to be essential for the proper intermixing of neuronal types in the cortical columns, which, when disrupted, might contribute to neuropsychiatric disorders associated with abnormal columnar organization.

Indexed as

Cell MovementSignal TransductionAnimalsCerebral CortexEphrinsMiceMice, KnockoutNeocortexNeuronsOrganogenesisRatsReceptors, Eph FamilyEphrinsReceptors, Eph Family

Identifiers

PMID19759535
PMCPMC2874978
OpenAlexW1982562003

What OpenQuestion holds

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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.