Evidence map›Paper›PMID 24460629›Full record

ArticleJournal of thrombosis and haemostasis : JTH2014

CLEC-2-dependent activation of mouse platelets is weakly inhibited by cAMP but not by cGMP.

A Borgognone, L Navarro-Núñez, J N Correia, A Y Pollitt, S G Thomas, J A Eble, F M Pulcinelli, M Madhani, S P Watson

Open access · hybridAbstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 15 citations in OpenAlex.

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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

9 authors at 3 institutions in 3 countries.

A BorgognoneCentre for Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK; Department of Experimental Medicine, 'Sapienza' University of Rome, Rome, Italy.
L Navarro-Núñez
J N Correia
A Y Pollitt
S G Thomas
J A Eble
F M Pulcinelli
M Madhani
S P Watson
University of Birmingham · GBSapienza University of Rome · ITUniversity of Münster · DE

Funding

British Heart Foundation PG/11/119British Heart Foundation PG/11/119/29299British Heart Foundation PG/12/22/29485Wellcome TrustWellcome Trust 088410/Z/09/Z
6 · The paper itself

Abstract

backgroundThe activation of platelet CLEC-2 by podoplanin on lymphatic endothelial cells (LECs) has a critical role in prevention of mixing of lymphatic and blood vasculatures during embryonic development. Paradoxically, LECs release cAMP and cGMP-elevating agents, prostacyclin (PGI2 ) and nitric oxide (NO), respectively, which are powerful inhibitors of platelet activation. This raises the question of how podoplanin is able to activate CLEC-2 in the presence of the inhibitory cyclic nucleotides.

objectivesWe investigated the influence of cyclic nucleotides on CLEC-2 signaling in platelets.

methodsWe used rhodocytin, CLEC-2 monoclonal antibody, LECs and recombinant podoplanin as CLEC-2 agonists on mouse platelets. The effects of the cyclic nucleotide-elevating agents PGI2 , forskolin and the NO-donor GSNO were assessed with light transmission aggregometry, flow cytometry, protein phosphorylation and fluorescent imaging of platelets on LECs.

resultsWe show that platelet aggregation induced by CLEC-2 agonists is resistant to GSNO but inhibited by PGI2 . The effect of PGI2 is mediated through decreased phosphorylation of CLEC-2, Syk and PLCγ2. In contrast, adhesion and spreading of platelets on recombinant podoplanin, CLEC-2 antibody and LECs is not affected by PGI2 and GSNO. Consistent with this, CLEC-2 activation of Rac, which is required for platelet spreading, is not altered in the presence of PGI2 .

conclusionsThe present results demonstrate that platelet adhesion and activation on CLEC-2 ligands or LECs is maintained in the presence of PGI2 and NO.

Indexed as

Platelet ActivationAnimalsBlood PlateletsCalciumCell AdhesionCyclic AMPCyclic GMPEpoprostenolLectins, C-TypeMembrane GlycoproteinsMiceMice, Inbred C57BLNitric OxidePlatelet AdhesivenessPlatelet AggregationPodoplaninCalciumCLEC-2 protein, mouseCyclic AMPCyclic GMPEpoprostenolLectins, C-TypeMembrane GlycoproteinsNitric OxidePdpn protein, mousePodoplaninrhodocytin protein, Calloselasma rhodostomaViper Venomsblood plateletsC-type lectincyclic nucleotideslymphangiogenesisplatelet activation

Identifiers

PMID24460629
PMCPMC4138994
OpenAlexW2038439635

What OpenQuestion holds

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Registered trials

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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.