Evidence map›Paper›PMID 10500117›Full record

ReviewProceedings of the National Academy of Sciences of the United States of America1999

How the protease thrombin talks to cells.

S R Coughlin

Open access · greenAbstract readReview
In one paragraph

Review in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 158 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
158citing papers in PubMed, 1 pooled it
19.3field-weighted citation impact, top 1% 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

158 citing papers in PubMed, 1 synthesis or guideline pooled it, 581 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Thromboinflammation in dogs with virulent babesiosis.Frontiers in veterinary science · 2026
    Article
  5. Article
  6. Article
  7. Endothelial protease-activated receptor 4: impotent or important?Frontiers in cardiovascular medicine · 2025
    Review
  8. Review
  9. The thrombin receptor PAR4 supports visceral adipose tissue inflammation.Naunyn-Schmiedeberg's archives of pharmacology · 2024
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Thrombin Induces COX-2 and PGEMediators of inflammation · 2022
    Article

98 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

1 author at 1 institution in 1 country.

S R CoughlinCardiovascular Research Institute, Department of Medicine, University of California, San Francisco, CA 94143-0130, USA. shaun_coughlin@quickmail.ucsf.edu
University of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

How does a protease act like a hormone to regulate cellular functions? The coagulation protease thrombin (EC 3.4.21.5) activates platelets and regulates the behavior of other cells by means of G protein-coupled protease-activated receptors (PARs). PAR1 is activated when thrombin binds to and cleaves its amino-terminal exodomain to unmask a new receptor amino terminus. This new amino terminus then serves as a tethered peptide ligand, binding intramolecularly to the body of the receptor to effect transmembrane signaling. The irreversibility of PAR1's proteolytic activation mechanism stands in contrast to the reversible ligand binding that activates classical G protein-coupled receptors and compels special mechanisms for desensitization and resensitization. In endothelial cells and fibroblasts, activated PAR1 rapidly internalizes and then sorts to lysosomes rather than recycling to the plasma membrane as do classical G protein-coupled receptors. This trafficking behavior is critical for termination of thrombin signaling. An intracellular pool of thrombin receptors refreshes the cell surface with naïve receptors, thereby maintaining thrombin responsiveness. Thus cells have evolved a trafficking solution to the signaling problem presented by PARs. Four PARs have now been identified. PAR1, PAR3, and PAR4 can all be activated by thrombin. PAR2 is activated by trypsin and by trypsin-like proteases but not by thrombin. Recent studies with knockout mice, receptor-activating peptides, and blocking antibodies are beginning to define the role of these receptors in vivo.

Indexed as

AnimalsEmbryonic and Fetal DevelopmentEnzyme ActivationHumansMicePlatelet ActivationReceptor, PAR-1Receptors, ThrombinThrombinReceptor, PAR-1Receptors, ThrombinThrombin

Identifiers

PMID10500117
PMCPMC34235
OpenAlexW2050940330

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.