Evidence map›Paper›PMID 22452980›Full record

ArticleBlood2012

von Willebrand factor (VWF) propeptide binding to VWF D'D3 domain attenuates platelet activation and adhesion.

Sri R Madabhushi, Chengwei Shang, Kannayakanahalli M Dayananda, Kate Rittenhouse-Olson, Mary Murphy, Thomas E Ryan, Robert R Montgomery, Sriram Neelamegham

Abstract read
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

20 citing papers in PubMed, 49 citations in OpenAlex.

  1. Assessing primary hemostasis in cirrhosis: not only platelet count.Research and practice in thrombosis and haemostasis · 2026
    Article
  2. Total thrombus formation system exploration of primary hemostasis in cirrhotic patients.Research and practice in thrombosis and haemostasis · 2026
    Article
  3. Review
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  12. Article
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  14. [The function and clinical value of Von Willebrand factor propeptide].Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi · 2015
    Article
  15. Article
  16. Review
  17. Article
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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

8 authors at 2 institutions in 2 countries.

Sri R MadabhushiDepartments of Chemical and Biological Engineering.
Chengwei Shang
Kannayakanahalli M Dayananda
Kate Rittenhouse-Olson
Mary Murphy
Thomas E Ryan
Robert R Montgomery
Sriram Neelamegham
University at Buffalo, State University of New York · USVersiti Blood Center of Wisconsin · US

Funding

Transgenic/Knockout CoreP01HL044612 · NHLBI · VERSITI WISCONSIN, INC. · PI NEWMAN, PETER J · 1990 to 2015
$33.4M
Zimmerman Program for the Molecular and Clinical Biology of VWDP01HL081588 · NHLBI · VERSITI WISCONSIN, INC. · PI MONTGOMERY, ROBERT R · 2005 to 2016
$19.3M
SELECTIN MEDIATED CELL ADHESION UNDER HYDRODYNAMIC SHEARR01HL063014 · NHLBI · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI NEELAMEGHAM, SRIRAM · 2001 to 2014
$3.0M
VON WILLEBRAND FACTOR STRUCTURE-FUNCTION UNDE FLUID FLOWR01HL077258 · NHLBI · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI NEELAMEGHAM, SRIRAM · 2006 to 2015
$3.0M
VON WILLEBRAND PROTEINS &THEIR CELLULAR RELATIONSHIPSR01HL033721 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI MONTGOMERY, ROBERT R · 1985 to 2007
$2.3M
NHLBI NIH HHS HL33721NHLBI NIH HHS HL77258NHLBI NIH HHS HL81588NHLBI NIH HHS P01 HL044612NHLBI NIH HHS P01 HL081588NHLBI NIH HHS R01 HL033721NHLBI NIH HHS R01 HL063014NHLBI NIH HHS R01 HL077258
6 · The paper itself

Abstract

Noncovalent association between the von Willebrand factor (VWF) propeptide (VWFpp) and mature VWF aids N-terminal multimerization and protein compartmentalization in storage granules. This association is currently thought to dissipate after secretion into blood. In the present study, we examined this proposition by quantifying the affinity and kinetics of VWFpp binding to mature VWF using surface plasmon resonance and by developing novel anti-VWF D'D3 mAbs. Our results show that the only binding site for VWFpp in mature VWF is in its D'D3 domain. At pH 6.2 and 10mM Ca(2+), conditions mimicking intracellular compartments, VWFpp-VWF binding occurs with high affinity (K(D) = 0.2nM, k(off) = 8 × 10(-5) s(-1)). Significant, albeit weaker, binding (K(D) = 25nM, k(off) = 4 × 10(-3) s(-1)) occurs under physiologic conditions of pH 7.4 and 2.5mM Ca(2+). This interaction was also observed in human plasma (K(D) = 50nM). The addition of recombinant VWFpp in both flow-chamber-based platelet adhesion assays and viscometer-based shear-induced platelet aggregation and activation studies reduced platelet adhesion and activation partially. Anti-D'D3 mAb DD3.1, which blocks VWFpp binding to VWF-D'D3, also abrogated platelet adhesion, as shown by shear-induced platelet aggregation and activation studies. Our data demonstrate that VWFpp binding to mature VWF occurs in the circulation, which can regulate the hemostatic potential of VWF by reducing VWF binding to platelet GpIbα.

Indexed as

Platelet ActivationPlatelet AdhesivenessProtein Interaction Domains and MotifsAdultAnimalsBinding SitesBlood PlateletsCells, CulturedCHO CellsCricetinaeCricetulusDown-RegulationHumansProtein BindingProtein PrecursorsTransfectionProtein Precursorsvon Willebrand Factor

Identifiers

PMID22452980
PMCPMC3367877
OpenAlexW1967226631

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.