Evidence map›Paper›PMID 15788771›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2005

Disruption of ephrin signaling associates with disordered axophilic migration of the gonadotropin-releasing hormone neurons.

John A Gamble, Delicia K Karunadasa, Jean-Rémi Pape, Michael J Skynner, Martin G Todman, R John Bicknell, Jeremy P Allen, Allan E Herbison

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

24 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Article
  3. Expression of p11 and Heteromeric TASK Channels in Rat Carotid Body Glomus Cells and Nerve Growth Factor-differentiated PC12 Cells.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2020
    Article
  4. Review
  5. Review
  6. Nasal Placode Development, GnRH Neuronal Migration and Kallmann Syndrome.Frontiers in cell and developmental biology · 2019
    Article
  7. Article
  8. Transcriptional regulation of cranial sensory placode development.Current topics in developmental biology · 2015
    Review
  9. CXC chemokine receptor 7 (CXCR7) affects the migration of GnRH neurons by regulating CXCL12 availability.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The gonadotropin-releasing hormone cell-specific element is required for normal puberty and estrous cyclicity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2011
    Article
  16. Hypothalamic dysregulation and infertility in mice lacking the homeodomain protein Six6.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2011
    Article
  17. Review
  18. Review
  19. Article
  20. Review
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

8 authors at 2 institutions in 2 countries.

John A GambleNeurobiology Programme, The Babraham Institute, Cambridge CB2 4AT, United Kingdom.
Delicia K Karunadasa
Jean-Rémi Pape
Michael J Skynner
Martin G Todman
R John Bicknell
Jeremy P Allen
Allan E Herbison
Babraham Institute · GBUniversity of Otago · NZ

Funding

Wellcome Trust
6 · The paper itself

Abstract

Ephrin signaling is involved in repulsive and attractive interactions mediating axon guidance and cell-boundary formation in the developing nervous system. As a result of a fortuitous transgene integration event, we have identified here a potential role for EphA5 in the axophilic migration of gonadotropin-releasing hormone (GnRH) neurons from the nasal placode into the brain along ephrin-expressing vomeronasal axons. Transgene integration in the GNR23 mouse line resulted in a 26 kb deletion in chromosome 5, approximately 67 kb 3' to Epha5. This induced a profound, region-specific upregulation of EphA5 mRNA and protein expression in the developing mouse brain. The GnRH neurons in GNR23 mice overexpressed EphA5 from embryonic day 11, whereas ephrin A3 and A5 mRNA levels in olfactory neurons were unchanged. The GnRH neurons were found to be slow in commencing their migration from the olfactory placode and also to form abnormal clusters of cells on the olfactory axons, prohibiting their migration out of the nose. As a result, adult hemizygous mice had only 40% of the normal complement of GnRH neurons in the brain, whereas homozygous mice had <15%. This resulted in infertility in adult female homozygous GNR23 mice, suggesting that some cases of human hypogonadotropic hypogonadism may result from ephrin-related mutations. These data provide evidence for a role of EphA-ephrin signaling in the axophilic migration of the GnRH neurons during embryogenesis.

Indexed as

AnimalsAnimals, NewbornAxonsBrainCell CountCell MovementChromosome MappingEmbryo, MammalianEphrinsGene Expression Regulation, DevelopmentalGenomic LibraryGonadotropin-Releasing HormoneImmunohistochemistryIn Situ HybridizationMiceMice, Inbred C57BLEphrinsGonadotropin-Releasing HormoneNeural Cell Adhesion Molecule L1polysialyl neural cell adhesion moleculeReceptor, EphA5RNA, MessengerSialic Acids

Identifiers

PMID15788771
PMCPMC6725091
OpenAlexW1969901497

What OpenQuestion holds

Textmetadata
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.