Evidence map›Paper›PMID 22384148›Full record

ArticlePloS one2012

Sprouty4 is an endogenous negative modulator of TrkA signaling and neuronal differentiation induced by NGF.

Fernando C Alsina, Dolores Irala, Paula A Fontanet, Francisco J Hita, Fernanda Ledda, Gustavo Paratcha

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 28 citations in OpenAlex.

  1. Sprouty in Tumors of the Nervous System.International journal of molecular sciences · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Experience Recruits MSK1 to Expand the Dynamic Range of Synapses and Enhance Cognition.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. The developing story of Sprouty and cancer.Cancer metastasis reviews · 2014
    Review
  15. Article
  16. Review
  17. Article
  18. 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

6 authors at 3 institutions in 2 countries.

Fernando C AlsinaDivision of Molecular and Cellular Neuroscience, Institute of Cellular Biology and Neuroscience Prof Dr E De Robertis-CONICET, School of Medicine, University of Buenos Aires, Buenos Aires, Argentina.
Dolores Irala
Paula A Fontanet
Francisco J Hita
Fernanda Ledda
Gustavo Paratcha
Consejo Nacional de Investigaciones Científicas y Técnicas · ARUniversity of Buenos Aires · ARKarolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Sprouty (Spry) family of proteins represents endogenous regulators of downstream signaling pathways induced by receptor tyrosine kinases (RTKs). Using real time PCR, we detect a significant increase in the expression of Spry4 mRNA in response to NGF, indicating that Spry4 could modulate intracellular signaling pathways and biological processes induced by NGF and its receptor TrkA. In this work, we demonstrate that overexpression of wild-type Spry4 causes a significant reduction in MAPK and Rac1 activation and neurite outgrowth induced by NGF. At molecular level, our findings indicate that ectopic expression of a mutated form of Spry4 (Y53A), in which a conserved tyrosine residue was replaced, fail to block both TrkA-mediated Erk/MAPK activation and neurite outgrowth induced by NGF, suggesting that an intact tyrosine 53 site is required for the inhibitory effect of Spry4 on NGF signaling. Downregulation of Spry4 using small interference RNA knockdown experiments potentiates PC12 cell differentiation and MAPK activation in response to NGF. Together, these findings establish a new physiological mechanism through which Spry4 regulates neurite outgrowth reducing not only the MAPK pathway but also restricting Rac1 activation in response to NGF.

Indexed as

AnimalsCell Line, TumorCOS CellsExtracellular Signal-Regulated MAP KinasesMAP Kinase Signaling SystemMutationNerve Growth FactorNerve Tissue ProteinsNeuronsPC12 Cellsrac1 GTP-Binding ProteinRatsRats, Sprague-DawleyReal-Time Polymerase Chain ReactionReceptor, trkARNA, Small InterferingExtracellular Signal-Regulated MAP KinasesNerve Growth FactorNerve Tissue Proteinsrac1 GTP-Binding ProteinRac1 protein, ratReceptor, trkARNA, Small InterferingSpry2 protein, ratTyrosine

Identifiers

PMID22384148
PMCPMC3285629
OpenAlexW2016807323

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.