Evidence map›Paper›PMID 19628041›Full record

ArticleMolecular and cellular neurosciences2009

MeCP2 deficiency disrupts axonal guidance, fasciculation, and targeting by altering Semaphorin 3F function.

Alicia L Degano, R Jeroen Pasterkamp, Gabriele V Ronnett

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular neurosciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

34 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Semaphorins in Adult Nervous System Plasticity and Disease.Frontiers in synaptic neuroscience · 2021
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Neural map formation and sensory coding in the vomeronasal system.Cellular and molecular life sciences : CMLS · 2015
    Review
  16. Article
  17. Article
  18. 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

3 authors at 3 institutions in 2 countries.

Alicia L DeganoDepartment of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. adegano1@jhmi.edu
R Jeroen Pasterkamp
Gabriele V Ronnett
Johns Hopkins Medicine · USJohns Hopkins University · USUniversity Medical Center Utrecht · NL

Funding

OLFACTORY ABNORMALITIES IN THE MODELING OF RETT SYNDROMER01NS041079 · NINDS · JOHNS HOPKINS UNIVERSITY · PI RONNETT, GABRIELE V · 2000 to 2013
$3.5M
NINDS NIH HHS R01 NS041079
6 · The paper itself

Abstract

Rett syndrome (RTT) is an autism spectrum disorder that results from mutations in the transcriptional regulator methyl-CpG binding protein 2 (MECP2). In the present work, we demonstrate that MeCP2 deficiency disrupts the establishment of neural connections before synaptogenesis. Using both in vitro and in vivo approaches, we identify dynamic alterations in the expression of class 3 semaphorins that are accompanied by defects in axonal fasciculation, guidance, and targeting with MeCP2 deficiency. Olfactory axons from Mecp2 mutant mice display aberrant repulsion when co-cultured with mutant olfactory bulb explants. This defect is restored when mutant olfactory axons are co-cultured with wild type olfactory bulbs. Thus, a non-cell autonomous mechanism involving Semaphorin 3F function may underlie abnormalities in the establishment of connectivity with Mecp2 mutation. These findings have broad implications for the role of MECP2 in neurodevelopment and RTT, given the critical role of the semaphorins in the formation of neural circuits.

Indexed as

Methyl-CpG-Binding Protein 2AnimalsAxonsCell MovementCells, CulturedCoculture TechniquesHumansMaleMembrane ProteinsMiceMice, Inbred BALB CMice, KnockoutMice, TransgenicNerve Tissue ProteinsOlfactory BulbOlfactory PathwaysMembrane ProteinsMethyl-CpG-Binding Protein 2Nerve Tissue ProteinsSema3f protein, mouse

Identifiers

PMID19628041
PMCPMC3290450
OpenAlexW2167524710

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.