Evidence map›Paper›PMID 22022533›Full record

ArticlePloS one2011

Platelet adhesion and degranulation induce pro-survival and pro-angiogenic signalling in ovarian cancer cells.

Karl Egan, Darragh Crowley, Paul Smyth, Sharon O'Toole, Cathy Spillane, Cara Martin, Michael Gallagher, Aoife Canney, Lucy Norris, Niamh Conlon and 14 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed, 5 pooled it
3.2field-weighted citation impact, top 7% 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

115 citing papers in PubMed, 5 syntheses or guidelines pooled it, 183 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Trial
  8. Platelets as regulators of cancer immunity: mechanisms and therapeutic perspectives.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. The Duality of Collagens in Metastases of Solid Tumors.International journal of molecular sciences · 2025
    Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

55 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

24 authors at 3 institutions in 1 country.

Karl EganMolecular and Cellular Therapeutics, The Royal College of Surgeons in Ireland, Dublin, Ireland.
Darragh Crowley
Paul Smyth
Sharon O'Toole
Cathy Spillane
Cara Martin
Michael Gallagher
Aoife Canney
Lucy Norris
Niamh Conlon
Lynda McEvoy
Brendan Ffrench
Britta Stordal
Helen Keegan
Stephen Finn
Victoria McEneaney
Alex Laios
Jens Ducrée
Eimear Dunne
Leila Smith
Michael Berndt
Orla Sheils
Dermot Kenny
John O'Leary
Trinity College Dublin · IEDublin City University · IERoyal College of Surgeons in Ireland · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thrombosis is common in ovarian cancer. However, the interaction of platelets with ovarian cancer cells has not been critically examined. To address this, we investigated platelet interactions in a range of ovarian cancer cell lines with different metastatic potentials [HIO-80, 59M, SK-OV-3, A2780, A2780cis]. Platelets adhered to ovarian cancer cells with the most significant adhesion to the 59M cell line. Ovarian cancer cells induced platelet activation [P-selectin expression] in a dose dependent manner, with the most significant activation seen in response to the 59M cell line. The platelet antagonists [cangrelor, MRS2179, and apyrase] inhibited 59M cell induced activation suggesting a P2Y12 and P2Y1 receptor mediated mechanism of platelet activation dependent on the release of ADP by 59M cells. A2780 and 59M cells potentiated PAR-1, PAR-4, and TxA2 receptor mediated platelet activation, but had no effect on ADP, epinephrine, or collagen induced activation. Analysis of gene expression changes in ovarian cancer cells following treatment with washed platelets or platelet releasate showed a subtle but valid upregulation of anti-apoptotic, anti-autophagy pro-angiogenic, pro-cell cycle and metabolic genes. Thus, ovarian cancer cells with different metastatic potential adhere and activate platelets differentially while both platelets and platelet releasate mediate pro-survival and pro-angiogenic signals in ovarian cancer cells.

Indexed as

Cell DegranulationPlatelet AdhesivenessSignal TransductionAdenosine DiphosphateAdenosine MonophosphateAdenosine TriphosphateApyraseArachidonic AcidCell SurvivalDrug SynergismEpithelial-Mesenchymal TransitionFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansNeovascularization, PathologicAdenosine DiphosphateAdenosine MonophosphateAdenosine TriphosphateApyraseArachidonic AcidcangrelorN(6)-methyl-2'-deoxyadenosine 3',5'-diphosphatePeptide Fragmentsprotease-activated receptor 4Receptors, Purinergic P2Y1Receptors, Purinergic P2Y12Receptors, Thrombinthrombin receptor peptide SFLLRNP

Identifiers

PMID22022533
PMCPMC3192146
OpenAlexW2028415685

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.