Evidence map›Paper›PMID 20886107›Full record

ArticlePloS one2010

Contribution of chondroitin sulfate A to the binding of complement proteins to activated platelets.

Osama A Hamad, Per H Nilsson, Maria Lasaosa, Daniel Ricklin, John D Lambris, Bo Nilsson, Kristina Nilsson Ekdahl

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

22 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Complement C3b contributes toFrontiers in immunology · 2022
    Article
  6. Review
  7. Review
  8. Review
  9. SARS-CoV-2: Pathogenic Mechanisms and Host Immune Response.Advances in experimental medicine and biology · 2021
    Article
  10. Review
  11. Platelets and Complement Cross-Talk in Early Atherogenesis.Frontiers in cardiovascular medicine · 2019
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Article
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

7 authors at 3 institutions in 2 countries.

Osama A HamadDivision of Clinical Immunology, Rudbeck Laboratory C5, Uppsala University, Uppsala, Sweden.
Per H Nilsson
Maria Lasaosa
Daniel Ricklin
John D Lambris
Bo Nilsson
Kristina Nilsson Ekdahl
University of Pennsylvania · USUppsala University · SELinnaeus University · SE

Funding

Role of complement in kidney disorders: from hemodialysis to transportationP01AI068730 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI LAMBRIS, JOHN D · 2007 to 2018
$16.0M
STRUCTURAL-FUNCTIONAL ANALYSIS OF COMPSTATINR01GM062134 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI LAMBRIS, JOHN D · 2001 to 2010
$2.5M
Computer Aided Design of Complement TherapeuticsR24GM069736 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI LAMBRIS, JOHN D · 2004 to 2007
$1.8M
Biomaterial-induced complement activationR01EB003968 · NIBIB · UNIVERSITY OF PENNSYLVANIA · PI LAMBRIS, JOHN D · 2005 to 2008
$1.0M
NIAID NIH HHS AI068730NIAID NIH HHS P01 AI068730NIBIB NIH HHS EB003968NIBIB NIH HHS R01 EB003968NIGMS NIH HHS GM069736NIGMS NIH HHS GM62134NIGMS NIH HHS R01 GM062134NIGMS NIH HHS R24 GM069736
6 · The paper itself

Abstract

backgroundExposure of chondroitin sulfate A (CS-A) on the surface of activated platelets is well established. The aim of the present study was to investigate to what extent CS-A contributes to the binding of the complement recognition molecule C1q and the complement regulators C1 inhibitor (C1INH), C4b-binding protein (C4BP), and factor H to platelets. PRINCIPAL

findingsHuman blood serum was passed over Sepharose conjugated with CS-A, and CS-A-specific binding proteins were identified by Western blotting and mass spectrometric analysis. C1q was shown to be the main protein that specifically bound to CS-A, but C4BP and factor H were also shown to interact. Binding of C1INH was dependent of the presence of C1q and then not bound to CS-A from C1q-depleted serum. The specific interactions observed of these proteins with CS-A were subsequently confirmed by surface plasmon resonance analysis using purified proteins. Importantly, C1q, C4BP, and factor H were also shown to bind to activated platelets and this interaction was inhibited by a CS-A-specific monoclonal antibody, thereby linking the binding of C1q, C4BP, and factor H to exposure of CS-A on activated platelets. CS-A-bound C1q was also shown to amplify the binding of model immune complexes to both microtiter plate-bound CS-A and to activated platelets.

conclusionsThis study supports the concept that CS-A contributes to the binding of C1q, C4BP, and factor H to platelets, thereby adding CS-A to the previously reported binding sites for these proteins on the platelet surface. CS-A-bound C1q also seems to amplify the binding of immune complexes to activated platelets, suggesting a role for this molecule in immune complex diseases.

Indexed as

Blood PlateletsChondroitin SulfatesComplement C1 Inactivator ProteinsComplement C1 Inhibitor ProteinComplement C1qComplement C4b-Binding ProteinComplement Factor HComplement System ProteinsHumansPlatelet ActivationProtein BindingChondroitin SulfatesComplement C1 Inactivator ProteinsComplement C1 Inhibitor ProteinComplement C1qComplement C4b-Binding ProteinComplement Factor HComplement System ProteinsSERPING1 protein, human

Identifiers

PMID20886107
PMCPMC2944812
OpenAlexW2017607329

What OpenQuestion holds

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LicenceCC BY
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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.