Evidence map›Paper›PMID 21816831›Full record

ArticleBlood2011

Shiga toxin (Stx)1B and Stx2B induce von Willebrand factor secretion from human umbilical vein endothelial cells through different signaling pathways.

Fang Liu, Jing Huang, J Evan Sadler

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-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

25 citing papers in PubMed, 40 citations in OpenAlex.

  1. Trial
  2. Article
  3. Cellular signaling pathway of Shiga toxin-induced ATP release.Frontiers in cellular and infection microbiology · 2026
    Article
  4. The potassium channel KNature communications · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Molecular Biology ofToxins · 2020
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Exocytosis of Weibel-Palade bodies: how to unpack a vascular emergency kit.Journal of thrombosis and haemostasis : JTH · 2019
    Review
  16. Article
  17. Article
  18. Cell death discovery · 2017
    Article
  19. Article
  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

3 authors at 1 institution in 1 country.

Fang LiuDepartment of Medicine, Washington University School of Medicine, St Louis, MO, USA.
Jing Huang
J Evan Sadler
Washington University in St. Louis · US

Funding

VON WILLEBRAND FACTOR MULTIMER ASSEMBLY AND STRUCTURER01HL072917 · NHLBI · WASHINGTON UNIVERSITY · PI SADLER, J EVAN · 2003 to 2012
$4.4M
Regulation of ADAMTS13 ActivityR01HL089746 · NHLBI · WASHINGTON UNIVERSITY · PI SADLER, J EVAN · 2007 to 2011
$2.1M
NHLBI NIH HHS HL72917NHLBI NIH HHS HL89746NHLBI NIH HHS R01 HL072917NHLBI NIH HHS R01 HL089746
6 · The paper itself

Abstract

Diarrhea-associated hemolytic uremic syndrome (D(+)HUS) is caused by the ingestion of Escherichia coli that produce Shiga toxin (Stx), which is composed of a cytotoxic A subunit and pentameric B subunits that bind globotriaosylceramide on susceptible cells. Stx occurs in 2 types, Stx1 and Stx2. B subunits of either type stimulate von Willebrand factor (VWF) secretion from human umbilical vein endothelial cells (HUVECs), and Stx2B can cause thrombotic microangiopathy in Adamts13(-/-) mice. We have now determined that Stx1B and Stx2B activate different signaling pathways in HUVECs. VWF secretion induced by Stx1B is associated with a transient rise in intracellular Ca(2+) level that is blocked by chelation with 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid-acetoxymethyl ester, removal of extracellular Ca(2+), the phospholipase C inhibitor U73122, the protein kinase inhibitor staurosporine, or small interfering RNA knockdown of protein kinase Cα. In contrast, Stx2B-induced VWF secretion is associated with activation of protein kinase A (PKA) and is blocked by the PKA inhibitor H89 or small interfering RNA knockdown of PKA. Stx2B does not increase cAMP levels and may activate PKA by a cAMP-independent mechanism. The activation of distinct signaling pathways may be relevant to understanding why E coli that express Stx2 are more likely to cause D(+)HUS than are E coli expressing only Stx1.

Indexed as

Shiga Toxin 1Shiga Toxin 2Signal TransductionAnimalsCalciumCyclic AMP-Dependent Protein KinasesDiarrheaEgtazic AcidEndothelial CellsEscherichia coliEscherichia coli InfectionsGene SilencingHemolytic-Uremic SyndromeHumansMiceProtein Binding1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acidCalciumCyclic AMP-Dependent Protein KinasesEgtazic AcidglobotriaosylceramideProtein Kinase C-alphaProtein Kinase InhibitorsRNA, Small InterferingShiga Toxin 1Shiga Toxin 2Trihexosylceramidesvon Willebrand Factor

Identifiers

PMID21816831
PMCPMC3179405
OpenAlexW2014804060

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.