Evidence map›Paper›PMID 7559764›Full record

ArticleThe Journal of cell biology1995

Regulation of nerve growth factor receptor gene expression in sympathetic neurons during development.

S Wyatt, A M Davies

Open access · greenAbstract read
In one paragraph

Article in The Journal of cell biology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.7field-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

27 citing papers in PubMed, 91 citations in OpenAlex.

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  6. p75 and TrkA signaling regulates sympathetic neuronal firing patterns via differential modulation of voltage-gated currents.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
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  14. Neurotrophin-3 promotes the cholinergic differentiation of sympathetic neurons.Proceedings of the National Academy of Sciences of the United States of America · 2000
    Article
  15. Selective regulation of trkC expression by NT3 in the developing peripheral nervous system.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1999
    Article
  16. Regulation of neurotrophin receptor expression by retinoic acid in mouse sympathetic neuroblasts.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1999
    Article
  17. Autocrine hepatocyte growth factor provides a local mechanism for promoting axonal growth.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
    Article
  18. Bcl-2 accelerates the maturation of early sensory neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
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  19. Competitive signaling between TrkA and p75 nerve growth factor receptors determines cell survival.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
    Article
  20. Nerve growth factor modulates synaptic transmission between sympathetic neurons and cardiac myocytes.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1997
    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

2 authors at 1 institution in 1 country.

S WyattSchool of Biological and Medical Sciences, University of St. Andrews, Fife, Scotland.
A M Davies
University of St Andrews · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

We used quantitative reverse transcription (RT)/PCR to study the regulation of p75 mRNA and trkA mRNA expression in the developing sympathetic neurons of the mouse superior cervical sympathetic ganglion (SCG) in vivo and in vitro. At E13, the SCG contains proliferating cells that express many features of differentiated neurons. These immature neurons survived in culture without NGF, and NGF did not induce c-fos expression. Low levels of p75 and trkA mRNAs were expressed at this stage in vivo. There was no significant increase in the level of either trkA mRNA or p75 mRNA in E13 control cultures up to 72 h in vitro, and neither NGF nor depolarizing levels of K+ ions (40 mM KC1) affected the expression of trkA mRNA. In E14 cultures, NGF induced c-fos expression in 10-15% of the neurons and enhanced the survival of a similar percentage of neurons. The proportion of neurons responding to NGF increased with age, reaching 90% in E18 cultures. The in vivo level of trkA mRNA increased markedly from E14 onward, but in contrast to sensory neurons (in which p75 and trkA mRNA levels increase in parallel), the level of trkA mRNA initially increased far more rapidly than that of p75 mRNA. After E17, the level of p75 mRNA increased rapidly and approached that of trkA mRNA postnatally, but at no stage did this exceed the level of trkA mRNA. In E14 cultures, the level of trkA mRNA increased in the absence of neurotrophins or 40 mM KC1. The level of p75 mRNA in E14 cultures was enhanced by NGF but was unaffected by 40 mM KC1. Our findings show that NGF receptor expression during the earliest stages of sympathetic neuron development is not affected by depolarization but indicate that by an early developmental stage (between E13 and E14 in vivo), sympathetic neurons become specified to upregulate trkA mRNA in culture independently of added factors. In addition, our findings reveal several distinctive features of p75 mRNA and trkA mRNA expression in sympathetic neurons compared with sensory neurons and provide a plausible explanation for previously observed differences in the effects of a p75 null mutation on the response of sensory and sympathetic neurons during embryonic and postnatal development.

Indexed as

Gene Expression Regulation, DevelopmentalAnimalsBase SequenceCell DifferentiationCell DivisionCells, CulturedFemaleGanglia, SympatheticMiceMolecular Sequence DataPregnancyReceptors, Nerve Growth FactorRNA, MessengerReceptors, Nerve Growth FactorRNA, Messenger

Identifiers

PMID7559764
PMCPMC2120567
OpenAlexW2165107825

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.