Evidence map›Paper›PMID 23035643›Full record

ArticleTraffic (Copenhagen, Denmark)2013

Drosophila S2 cells secrete wingless on exosome-like vesicles but the wingless gradient forms independently of exosomes.

Karen Beckett, Solange Monier, Lucy Palmer, Cyrille Alexandre, Hannah Green, Eric Bonneil, Graca Raposo, Pierre Thibault, Roland Le Borgne, Jean-Paul Vincent

Abstract read
In one paragraph

Article in Traffic (Copenhagen, Denmark), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
–field-weighted citation impact
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

105 citing papers in PubMed.

  1. Article
  2. Article
  3. Extracellular vesicles inEXO : beyond the cell · 2026
    Article
  4. Article
  5. Review
  6. Review
  7. Wnt signaling - using the bloodstream to send a message.Cellular and molecular life sciences : CMLS · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Isolation of extracellular vesicles from insect hemolymph.Current research in insect science · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

45 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

10 authors.

Karen BeckettDivision of Developmental Biology, MRC National Institute for Medical Research, Mill Hill, London, NW7 1AA, UK. kbecket@nimr.mrc.ac.uk
Solange Monier
Lucy Palmer
Cyrille Alexandre
Hannah Green
Eric Bonneil
Graca Raposo
Pierre Thibault
Roland Le Borgne
Jean-Paul Vincent

Funding

Medical Research Council MC_U117584268Medical Research Council U117584268Wellcome Trust 094397
6 · The paper itself

Abstract

Wingless acts as a morphogen in Drosophila wing discs, where it specifies cell fates and controls growth several cell diameters away from its site of expression. Thus, despite being acylated and membrane associated, Wingless spreads in the extracellular space. Recent studies have focussed on identifying the route that Wingless follows in the secretory pathway and determining how it is packaged for release. We have found that, in medium conditioned by Wingless-expressing Drosophila S2 cells, Wingless is present on exosome-like vesicles and that this fraction activates signal transduction. Proteomic analysis shows that Wingless-containing exosome-like structures contain many Drosophila proteins that are homologous to mammalian exosome proteins. In addition, Evi, a multipass transmembrane protein, is also present on exosome-like vesicles. Using these exosome markers and a cell-based RNAi assay, we found that the small GTPase Rab11 contributes significantly to exosome production. This finding allows us to conclude from in vivo Rab11 knockdown experiments, that exosomes are unlikely to contribute to Wingless secretion and gradient formation in wing discs. Consistent with this conclusion, extracellularly tagged Evi expressed from a Bacterial Artificial Chromosome is not released from imaginal disc Wingless-expressing cells.

Indexed as

AnimalsCell LineChromosomes, Artificial, BacterialDrosophilaDrosophila ProteinsExosomesImaginal DiscsIntracellular Signaling Peptides and Proteinsrab11 GTP-Binding Proteinsrab GTP-Binding ProteinsRNA, Small InterferingSecretory VesiclesWnt1 ProteinDrosophila ProteinsIntracellular Signaling Peptides and Proteinsrab11 GTP-Binding ProteinsRab11 protein, Drosophilarab GTP-Binding ProteinsRNA, Small Interferingwg protein, DrosophilaWls protein, DrosophilaWnt1 Protein

Identifiers

PMID23035643
PMCPMC4337976

What OpenQuestion holds

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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.