Evidence map›Paper›PMID 17494700›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2007

p75 neurotrophin receptor expression defines a population of BDNF-responsive neurogenic precursor cells.

Kaylene M Young, Tobias D Merson, Areechun Sotthibundhu, Elizabeth J Coulson, Perry F Bartlett

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
4.9field-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

82 citing papers in PubMed, 164 citations in OpenAlex.

  1. Trial
  2. Trial
  3. TheiScience · 2026
    Article
  4. Article
  5. Stem cell and gene therapies for leukodystrophies.Molecular therapy. Methods & clinical development · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Differential contribution of TrkB and p75Frontiers in molecular neuroscience · 2023
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review

22 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

5 authors at 2 institutions in 1 country.

Kaylene M YoungQueensland Brain Institute, The University of Queensland, Brisbane QLD 4072, Australia.
Tobias D Merson
Areechun Sotthibundhu
Elizabeth J Coulson
Perry F Bartlett
University of Queensland · AUUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although our understanding of adult neurogenesis has increased dramatically over the last decade, confusion still exists regarding both the identity of the stem cell responsible for neuron production and the mechanisms that regulate its activity. Here we show, using flow cytometry, that a small population of cells (0.3%) within the stem cell niche of the rat subventricular zone (SVZ) expresses the p75 neurotrophin receptor (p75(NTR)) and that these cells are responsible for neuron production in both newborn and adult animals. In the adult, the p75(NTR)-positive population contains all of the neurosphere-producing precursor cells, whereas in the newborn many of the precursor cells are p75(NTR) negative. However, at both ages, only the neurospheres derived from p75(NTR)-positive cells are neurogenic. We also show that neuron production from p75(NTR)-positive but not p75(NTR)-negative precursors is greatly enhanced after treatment with brain-derived neurotrophic factor (BDNF) or nerve growth factor. This effect appears to be mediated specifically by p75(NTR), because precursor cells from p75(NTR)-deficient mice show a 70% reduction in their neurogenic potential in vitro and fail to respond to BDNF treatment. Furthermore, adult p75(NTR)-deficient mice have significantly reduced numbers of PSA-NCAM (polysialylated neural cell adhesion molecule)-positive SVZ neuroblasts in vivo and a lower olfactory bulb weight. Thus, p75(NTR) defines a discrete population of highly proliferative SVZ precursor cells that are able to respond to neurotrophin activation by increasing neuroblast generation, making this pathway the most likely mechanism for the increased neurogenesis that accompanies raised BDNF levels in a variety of disease and behavioral situations.

Indexed as

AgingAnimalsAnimals, NewbornBiomarkersBrainBrain-Derived Neurotrophic FactorCell DifferentiationCell LineageCell MovementCell ProliferationCells, CulturedGene Expression Regulation, DevelopmentalMiceMice, KnockoutNeural Cell Adhesion Molecule L1NeuronsBiomarkersBrain-Derived Neurotrophic FactorNeural Cell Adhesion Molecule L1polysialyl neural cell adhesion moleculeReceptor, Nerve Growth FactorSialic Acids

Identifiers

PMID17494700
PMCPMC6672366
OpenAlexW1975019629

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.