Evidence map›Paper›PMID 26162408›Full record

ArticleBlood2015

Platelet binding sites for factor VIII in relation to fibrin and phosphatidylserine.

Gary E Gilbert, Valerie A Novakovic, Jialan Shi, Jan Rasmussen, Steven W Pipe

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.4field-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

18 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
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  6. Article
  7. Article
  8. Article
  9. Haemophilia.Nature reviews. Disease primers · 2021
    Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Global coagulation assays in hemophilia A: A comparison to conventional assays.Research and practice in thrombosis and haemostasis · 2020
    Article
  15. LDL receptor related protein 1 requires the IBiochimica et biophysica acta. Molecular cell research · 2019
    Article
  16. Fibrin Formation, Structure and Properties.Sub-cellular biochemistry · 2017
    Review
  17. Article
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Gary E GilbertDepartments of Medicine and Research, VA Boston Healthcare System, Boston, MA; Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA;
Valerie A NovakovicDepartments of Medicine and Research, VA Boston Healthcare System, Boston, MA;
Jialan ShiDepartments of Medicine and Research, VA Boston Healthcare System, Boston, MA; Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA;
Jan RasmussenProtein Chemistry Laboratory, Department of Molecular Biology, University of Aarhus, Aarhus, Denmark; and.
Steven W PipeDepartments of Pediatrics and Pathology, University of Michigan, Ann Arbor, MI.
VA Boston Healthcare System · USAarhus University · DKUniversity of Michigan–Ann Arbor · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thrombin-stimulated platelets expose very little phosphatidylserine (PS) but express binding sites for factor VIII (fVIII), casting doubt on the role of exposed PS as the determinant of binding sites. We previously reported that fVIII binding sites are increased three- to sixfold when soluble fibrin (SF) binds the αIIbβ3 integrin. This study focuses on the hypothesis that platelet-bound SF is the major source of fVIII binding sites. Less than 10% of fVIII was displaced from thrombin-stimulated platelets by lactadherin, a PS-binding protein, and an fVIII mutant defective in PS-dependent binding retained platelet affinity. Therefore, PS is not the determinant of most binding sites. FVIII bound immobilized SF and paralleled platelet binding in affinity, dependence on separation from von Willebrand factor, and mediation by the C2 domain. SF also enhanced activity of fVIII in the factor Xase complex by two- to fourfold. Monoclonal antibody (mAb) ESH8, against the fVIII C2 domain, inhibited binding of fVIII to SF and platelets but not to PS-containing vesicles. Similarly, mAb ESH4 against the C2 domain, inhibited >90% of platelet-dependent fVIII activity vs 35% of vesicle-supported activity. These results imply that platelet-bound SF is a component of functional fVIII binding sites.

Indexed as

Binding SitesBlood PlateletsCells, CulturedFactor VIIIFibrinHumansPhosphatidylserinesPlatelet ActivationProtein BindingFactor VIIIFibrinPhosphatidylserines

Identifiers

PMID26162408
PMCPMC4559935
OpenAlexW2404704849

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.