Evidence map›Paper›PMID 15781579›Full record

ArticleThe Journal of experimental medicine2005

Platelet activation leads to activation and propagation of the complement system.

Ian Del Conde, Miguel A Crúz, Hui Zhang, José A López, Vahid Afshar-Kharghan

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 183 papers.

0numbers the graph read from it
0cells of the map it votes in
183citing papers in PubMed
5.0field-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

183 citing papers in PubMed, 390 citations in OpenAlex.

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  14. Beyond hemostasis, the immunomodulatory nature of platelets.Research and practice in thrombosis and haemostasis · 2025
    Review
  15. Review
  16. Review
  17. Thrombocytopenia in Sepsis.Life (Basel, Switzerland) · 2025
    Review
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  20. Review

123 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Ian Del CondeThrombosis Research Section, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
Miguel A Crúz
Hui Zhang
José A López
Vahid Afshar-Kharghan
Baylor College of Medicine · US

Funding

PLATELET INTERACTIONS WITH ENDOTHELIUM AND LEUKOCYTESR01HL064796 · NHLBI · BAYLOR COLLEGE OF MEDICINE · PI LOPEZ, JOSE ARON · 2000 to 2004
$1.9M
NHLBI NIH HHS R01 HL064796NHLBI NIH HHS R01HL64796
6 · The paper itself

Abstract

Inflammation and thrombosis are two responses that are linked through a number of mechanisms, one of them being the complement system. Various proteins of the complement system interact specifically with platelets, which, in turn, activates them and promotes thrombosis. In this paper, we show that the converse is also true: activated platelets can activate the complement system. As assessed by flow cytometry and immunoblotting, C3 deposition increased on the platelet surface upon cell activation with different agonists. Activation of the complement system proceeded to its final stages, which was marked by the increased generation of the anaphylotoxin C3a and the C5b-9 complex. We identified P-selectin as a C3b-binding protein, and confirmed by surface plasmon resonance binding that these two proteins interact specifically with a dissociation constant of 1 microM. Using heterologous cells expressing P-selectin, we found that P-selectin alone is sufficient to activate the complement system, marked by increases in C3b deposition, C3a generation, and C5b-9 formation. In summary, we have found that platelets are capable of activating the complement system, and have identified P-selectin as a receptor for C3b capable of initiating complement activation. These findings point out an additional mechanism by which inflammation may localize to sites of vascular injury and thrombosis.

Indexed as

AnaphylatoxinsAnimalsBlood PlateletsCHO CellsComplement ActivationComplement System ProteinsCricetinaeHumansInflammationPlatelet ActivationP-SelectinSurface Plasmon ResonanceThrombosisAnaphylatoxinsComplement System ProteinsP-Selectin

Identifiers

PMID15781579
PMCPMC2213112
OpenAlexW2117066664

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.