Evidence map›Paper›PMID 16192651›Full record

ArticleThe American journal of pathology2005

Binding of complement factor H to endothelial cells is mediated by the carboxy-terminal glycosaminoglycan binding site.

T Sakari Jokiranta, Zhu-Zhu Cheng, Harald Seeberger, Mihály Jòzsi, Stefan Heinen, Marina Noris, Giuseppe Remuzzi, Rebecca Ormsby, David L Gordon, Seppo Meri and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. The human factor H protein family - an update.Frontiers in immunology · 2024
    Review
  5. PepO and CppA modulateVirulence · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. The Biochemical journal · 2017
    Article
  19. Article
  20. Review
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

12 authors at 5 institutions in 4 countries.

T Sakari JokirantaDepartment of Bacteriology and Immunology, Haartman Institute and Huslab, FIN-00014, University of Helsinki, Helsinki, Finland. sakari.jokiranta@helsinki.fi
Zhu-Zhu Cheng
Harald Seeberger
Mihály Jòzsi
Stefan Heinen
Marina Noris
Giuseppe Remuzzi
Rebecca Ormsby
David L Gordon
Seppo Meri
Jens Hellwage
Peter F Zipfel
Mario Negri Institute for Pharmacological Research · ITLeibniz-Institut für Naturstoff-Forschung und Infektionsbiologie e. V. - Hans-Knöll-Institut (HKI) · DEFlinders Medical Centre · AUHelsinki University Hospital · FIUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Factor H (FH), the major fluid phase regulator of the alternative complement pathway, mediates protection of plasma-exposed host structures. It has recently been shown that short consensus repeats 19 to 20 of FH are mutational hot spots associated with atypical hemolytic uremic syndrome (aHUS), a disease with endothelial cell damage. Domain 20 of FH contains binding sites for heparin, C3b, and the cleavage product C3d. To study the role of these binding sites in target recognition, we performed site-directed mutagenesis in domain 20 and assayed the resulting recombinant proteins. The mutant FH15-20A (substitutions R1203E, R1206E, and R1210S) bound neither heparin nor endothelial cells. Similarly, an aHUS-derived mutant FH protein (E1172Stop, lacking domain 20) failed to bind endothelial cells and showed impaired binding to heparin. Binding of FH to endothelial cells was inhibited by heparin and a specific monoclonal antibody that inhibited heparin but not C3d binding, demonstrating that the heparin site on domains 19 to 20 mediates interaction of FH to endothelial cells. Binding of FH15-20 to heparin was inhibited by several cell surface- and basement membrane-associated glycosaminoglycans, suggesting that binding site specificity is not restricted to heparin. Thus, defective heparin/glycosaminoglycan-binding site on domains 19 to 20 of FH most probably mediates complement-induced endothelial cell damage in aHUS.

Indexed as

Amino Acid SubstitutionAntibodies, MonoclonalBinding SitesCells, CulturedComplement C3dComplement Factor HEndothelial CellsEndothelium, VascularFlow CytometryGlycosaminoglycansHeparinHumansMutagenesis, Site-DirectedPolyelectrolytesPolymersProtein BindingAntibodies, MonoclonalComplement C3dComplement Factor HGlycosaminoglycansHeparinPolyelectrolytesPolymersRecombinant Proteins

Identifiers

PMID16192651
PMCPMC1603661
OpenAlexW1965721063

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.