Evidence map›Paper›PMID 19761544›Full record

ArticleTraffic (Copenhagen, Denmark)2009

Selective targeting of ER exit sites supports axon development.

Meir Aridor, Kenneth N Fish

Open access · bronzeAbstract read
In one paragraph

Article in Traffic (Copenhagen, Denmark), 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
1.9field-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

34 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. The Neuronal Golgi Network and Its Acolytes.Sub-cellular biochemistry · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Architecture and Dynamics of the Neuronal Secretory Network.Annual review of cell and developmental biology · 2019
    Review
  13. Article
  14. Article
  15. Review
  16. Axonal Degeneration in Retinal Ganglion Cells Is Associated with a Membrane Polarity-Sensitive Redox Process.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  17. Axons provide the secretory machinery for trafficking of voltage-gated sodium channels in peripheral nerve.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  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

2 authors at 1 institution in 1 country.

Meir AridorDepartment of Cell Biology and Physiology, University of Pittsburgh School of Medicine, 3500 Terrace St, Pittsburgh, PA 15261, USA.
Kenneth N Fish
University of Pittsburgh · US

Funding

The Regulation of COPII Coat Mediated ER ExportR01DK062318 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ARIDOR, MEIR · 2004 to 2008
$1.5M
Building a mouse model with relevance to schizophreniaK01MH064372 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FISH, KENNETH N · 2001 to 2005
$694k
The Regulation of COPII Coat Mediated ER ExportR56DK062318 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ARIDOR, MEIR · 2009 to 2009
$189k
NIDDK NIH HHS DK062318NIDDK NIH HHS R01 DK062318NIDDK NIH HHS R56 DK062318NIMH NIH HHS K01 MH064372NIMH NIH HHS MH064372
6 · The paper itself

Abstract

During neuron development, the biosynthetic needs of the axon initially outweigh those of dendrites. However, although a localized role for the early secretory pathway in dendrite development has been observed, such a role in axon growth remains undefined. We therefore studied the localization of Sar1, a small GTPase that controls ER export, during early stages of neuronal development that are characterized by selective and robust axon growth. At these early stages, Sar1 was selectively targeted to the axon where it gradually concentrated within varicosities in which additional proteins that function in the early secretory pathway were detected. Sar1 targeting to the axon followed axon specification and was dependent on localized actin instability. Changes in Sar1 expression levels at these early development stages modulated axon growth. Specifically, reduced expression of Sar1, which was initially only detectable in the axon, correlated with reduced axon growth, where as overexpression of Sar1 supported the growth of longer axons. In support of the former finding, expression of dominant negative Sar1 inhibited axon growth. Thus, as observed in lower organisms, mammalian cells use temporal and spatial regulation of endoplasmic reticulum exit site (ERES) to address developmental biosynthetic demands. Furthermore, axons, such as dendrites, rely on ERES targeting and assembly for growth.

Indexed as

AnimalsAxonsCells, CulturedCOP-Coated VesiclesEndoplasmic ReticulumGolgi ApparatusHippocampusMiceMice, KnockoutMonomeric GTP-Binding ProteinsNeuronsProtein BindingRatsRats, Sprague-DawleyMonomeric GTP-Binding ProteinsSAR1 protein, rat

Identifiers

PMID19761544
PMCPMC2763039
OpenAlexW2080627963

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.