Evidence map›Paper›PMID 20424270›Full record

ArticleJournal of lipid research2010

Exosomes account for vesicle-mediated transcellular transport of activatable phospholipases and prostaglandins.

Caroline Subra, David Grand, Karine Laulagnier, Alexandre Stella, Gérard Lambeau, Michael Paillasse, Philippe De Medina, Bernard Monsarrat, Bertrand Perret, Sandrine Silvente-Poirot and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 335 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
335citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 3% 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

335 citing papers in PubMed, 1 synthesis or guideline pooled it, 620 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Mast cell-derived extracellular vesicles in lung diseases: roles in pulmonary inflammation, immune regulation, and microenvironmental remodeling.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Extracellular vesicles as modulators of cancer metabolism and microenvironment.Extracellular vesicles and circulating nucleic acids · 2026
    Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Endosomal Mechanisms in Heart Failure Pathophysiology.Current heart failure reports · 2025
    Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article

275 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

12 authors at 5 institutions in 2 countries.

Caroline SubraMetabolism, Oncogenesis and Cell Differentiation Group, INSERM Research Center 563, Pathophysiology Center of Toulouse Purpan, Hôpital Purpan, Toulouse, France.
David Grand
Karine Laulagnier
Alexandre Stella
Gérard Lambeau
Michael Paillasse
Philippe De Medina
Bernard Monsarrat
Bertrand Perret
Sandrine Silvente-Poirot
Marc Poirot
Michel Record
Université Toulouse III - Paul Sabatier · FRCentre National de la Recherche Scientifique · FRHôpital Purpan · FRInserm · FRUniversity of the Sciences · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exosomes are bioactive vesicles released from multivesicular bodies (MVB) by intact cells and participate in intercellular signaling. We investigated the presence of lipid-related proteins and bioactive lipids in RBL-2H3 exosomes. Besides a phospholipid scramblase and a fatty acid binding protein, the exosomes contained the whole set of phospholipases (A2, C, and D) together with interacting proteins such as aldolase A and Hsp 70. They also contained the phospholipase D (PLD) / phosphatidate phosphatase 1 (PAP1) pathway leading to the formation of diglycerides. RBL-2H3 exosomes also carried members of the three phospholipase A2 classes: the calcium-dependent cPLA(2)-IVA, the calcium-independent iPLA(2)-VIA, and the secreted sPLA(2)-IIA and V. Remarkably, almost all members of the Ras GTPase superfamily were present, and incubation of exosomes with GTPgammaS triggered activation of phospholipase A(2) (PLA(2))and PLD(2). A large panel of free fatty acids, including arachidonic acid (AA) and derivatives such as prostaglandin E(2) (PGE(2)) and 15-deoxy-Delta(12,14)-prostaglandinJ(2) (15-d PGJ(2)), were detected. We observed that the exosomes were internalized by resting and activated RBL cells and that they accumulated in an endosomal compartment. Endosomal concentrations were in the micromolar range for prostaglandins; i.e., concentrations able to trigger prostaglandin-dependent biological responses. Therefore exosomes are carriers of GTP-activatable phospholipases and lipid mediators from cell to cell.

Indexed as

Biological TransportCell LineDinoprostoneEndosomesEnzyme ActivationExosomesGuanosine TriphosphateHumansLipolysisPancreatitis-Associated ProteinsPhosphatidate PhosphatasePhospholipase DPhospholipasesPhospholipases A2Prostaglandin D2Prostaglandins9-deoxy-delta-9-prostaglandin D2DinoprostoneGuanosine TriphosphatePancreatitis-Associated ProteinsPhosphatidate PhosphatasePhospholipase Dphospholipase D2PhospholipasesPhospholipases A2Prostaglandin D2ProstaglandinsProteomeREG3A protein, human

Identifiers

PMID20424270
PMCPMC2903822
OpenAlexW2119812304

What OpenQuestion holds

Textmetadata
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.