Evidence map›Paper›PMID 22743997›Full record

ArticleCell death and differentiation2012

Unveiling an exceptional zymogen: the single-chain form of tPA is a selective activator of NMDA receptor-dependent signaling and neurotoxicity.

J Parcq, T Bertrand, A Montagne, A F Baron, R Macrez, J M Billard, A Briens, Y Hommet, J Wu, M Yepes and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 22% 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Core determinant of theFrontiers in pharmacology · 2026
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. The Role of Fibrinolytic System in Health and Disease.International journal of molecular sciences · 2022
    Article
  16. Article
  17. Article
  18. 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

14 authors at 6 institutions in 3 countries.

J ParcqInserm U919, Serine Proteases and Pathophysiology of the neurovascular Unit, Université de Caen Basse-Normandie, GIP Cyceron, Caen, France.
T Bertrand
A Montagne
A F Baron
R Macrez
J M Billard
A Briens
Y Hommet
J Wu
M Yepes
H R Lijnen
P Dutar
E Anglés-Cano
D Vivien
Cyceron · FRInserm · FRSerine Proteases and Pathophysiology of the neurovascular Unit · FREmory University · USUniversité Paris Cité · FRVIB-KU Leuven Center for Cancer Biology · BE

Funding

TWEAK-Induced Ischemic Neuronal DeathR01NS062073 · NINDS · EMORY UNIVERSITY · PI YEPES, MANUEL SALVADOR · 2009 to 2013
$1.7M
Protease-Regulated Blood Brain Barrier PermeabilityR56HL095063 · NHLBI · EMORY UNIVERSITY · PI YEPES, MANUEL SALVADOR · 2009 to 2009
$388k
TWEAK-Induced Neuroinflammation and Cerebral EdemaI01BX000474 · VA · VETERANS HEALTH ADMINISTRATION · PI YEPES, MANUEL SALVADOR · 2011 to 2013
–
BLRD VA I01 BX000474NHLBI NIH HHS HL-095063NHLBI NIH HHS R56 HL095063NINDS NIH HHS NS-062073NINDS NIH HHS R01 NS062073
6 · The paper itself

Abstract

Unlike other serine proteases that are zymogens, the single-chain form of tissue plasminogen activator (sc-tPA) exhibits an intrinsic activity similar to that of its cleaved two-chain form (tc-tPA), especially in the presence of fibrin. In the central nervous system tPA controls brain functions and dysfunctions through its proteolytic activity. We demonstrated here, both in vitro and in vivo, that the intrinsic activity of sc-tPA selectively modulates N-methyl-D-aspartate receptor (NMDAR) signaling as compared with tc-tPA. Thus, sc-tPA enhances NMDAR-mediated calcium influx, Erk(½) activation and neurotoxicity in cultured cortical neurons, excitotoxicity in the striatum and NMDAR-dependent long-term potentiation in the hippocampal CA-1 network. As the first demonstration of a differential function for sc-tPA and tc-tPA, this finding opens a new area of investigations on tPA functions in the absence of its allosteric regulator, fibrin.

Indexed as

AnimalsCalciumCells, CulturedHumansMiceMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3NeuronsN-MethylaspartateReceptors, N-Methyl-D-AspartateRecombinant ProteinsSignal TransductionTissue Plasminogen ActivatorCalciumMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3N-MethylaspartateReceptors, N-Methyl-D-AspartateRecombinant ProteinsTissue Plasminogen Activator

Identifiers

PMID22743997
PMCPMC3504712
OpenAlexW1992444994

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.