Evidence map›Paper›PMID 17723119›Full record

ArticleJournal of thrombosis and haemostasis : JTH2007

Binding of factor VIIa to the endothelial cell protein C receptor reduces its coagulant activity.

J López-Sagaseta, R Montes, C Puy, N Díez, K Fukudome, J Hermida

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In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 2 pooled it
5.1field-weighted citation impact, top 4% 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

50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 102 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

J López-SagasetaHaematology Department and the Division of Cardiovascular Sciences, Laboratory of Thrombosis and Haemostasis, Clínica Universitaria/School of Medicine, Centre for Applied Medical Research, University of Navarra, Pamplona, Spain.
R Montes
C Puy
N Díez
K Fukudome
J Hermida
Universidad de Navarra · ESClinica Universidad de Navarra · ESSaga Medical School Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndothelial cell protein C receptor (EPCR) binds protein C through its gamma-carboxyglutamic acid (Gla) domain and enhances its thrombin-thrombomodulin complex-dependent activation. So far, only protein C/activated protein C has been shown to interact with EPCR. Factor VII (FVII), the coagulation trigger upon tissue factor (TF) interaction, is a serine protease whose Gla domain is highly homologous to the Gla domain of protein C.

objectivesTo characterize the binding of FVII/FVIIa to EPCR and its functional consequences. METHODS AND

resultsWe demonstrated by surface plasmon resonance (SPR) that FVII/FVIIa binds to EPCR through its Gla domain. At therapeutic concentrations, FVIIa reduced the activation of protein C by 40%. Soluble EPCR (sEPCR) was also able to prolong dose-dependently the clotting time induced by the FVIIa-TF complex. SPR and amidolytic experiments showed that FVIIa is able to interact simultaneously with TF and EPCR, thus ruling out the possibility that the effect of EPCR on clotting time was due to the inhibition of the binding between FVIIa and TF. sEPCR inhibited dose-dependently the activation of FX by the FVIIa-TF complex. Notably, blocking the binding site of EPCR on the endothelial surface increased the generation of FXa 2-fold.

conclusionsEPCR binds to FVII/FVIIa and inhibits the procoagulant activity of the FVIIa-TF complex.

Indexed as

Antigens, CDCoagulantsEndothelial Protein C ReceptorFactor VIIaHumansPichiaReceptors, Cell SurfaceRecombinant ProteinsAntigens, CDCoagulantsEndothelial Protein C ReceptorFactor VIIaPROCR protein, humanReceptors, Cell SurfaceRecombinant Proteins

Identifiers

PMID17723119
OpenAlexW1541952400

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.