Evidence map›Paper›PMID 22201125›Full record

ArticleThe Journal of cell biology2011

Smaug1 mRNA-silencing foci respond to NMDA and modulate synapse formation.

María Verónica Baez, Luciana Luchelli, Darío Maschi, Martín Habif, Malena Pascual, María Gabriela Thomas, Graciela Lidia Boccaccio

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

35 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. RNA in axons, dendrites, synapses and beyond.Frontiers in molecular neuroscience · 2024
    Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. RNA NTrends in neurosciences · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  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

7 authors at 3 institutions in 1 country.

María Verónica BaezFundación Instituto Leloir, C1405BWE Buenos Aires, Argentina.
Luciana Luchelli
Darío Maschi
Martín Habif
Malena Pascual
María Gabriela Thomas
Graciela Lidia Boccaccio
Fundación Instituto Leloir · ARUniversity of Buenos Aires · ARFundación Ciencias Exactas y Naturales · AR

Funding

Cytoplasmic transport of mRNAs in the myelin sheathR03TW006037 · FIC · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI COLMAN, DAVID R · 2003 to 2005
$122k
FIC NIH HHS 1R03TW006037-01A1FIC NIH HHS R03 TW006037
6 · The paper itself

Abstract

Mammalian Smaug1/Samd4A is a translational repressor. Here we show that Smaug1 forms mRNA-silencing foci located at postsynapses of hippocampal neurons. These structures, which we have named S-foci, are distinct from P-bodies, stress granules, or other neuronal RNA granules hitherto described, and are the first described mRNA-silencing foci specific to neurons. RNA binding was not required for aggregation, which indicates that S-foci formation is not a consequence of mRNA silencing. N-methyl-D-aspartic acid (NMDA) receptor stimulation provoked a rapid and reversible disassembly of S-foci, transiently releasing transcripts (the CaMKIIα mRNA among others) to allow their translation. Simultaneously, NMDA triggered global translational silencing, which suggests the specific activation of Smaug1-repressed transcripts. Smaug1 is expressed during synaptogenesis, and Smaug1 knockdown affected the number and size of synapses, and also provoked an impaired response to repetitive depolarizing stimuli, as indicated by a reduced induction of Arc/Arg3.1. Our results suggest that S-foci control local translation, specifically responding to NMDA receptor stimulation and affecting synaptic plasticity.

Indexed as

Calcium-Calmodulin-Dependent Protein Kinase Type 2Cell Line, TumorCells, CulturedDendritesGene SilencingHeLa CellsHippocampusHumansNeuronsN-MethylaspartatePolyribosomesProtein BiosynthesisReceptors, N-Methyl-D-AspartateRepressor ProteinsRNA, MessengerSynapsesCalcium-Calmodulin-Dependent Protein Kinase Type 2N-MethylaspartateReceptors, N-Methyl-D-AspartateRepressor ProteinsRNA, MessengerSAMD4A protein, human

Identifiers

PMID22201125
PMCPMC3246892
OpenAlexW2091933556

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.