Evidence map›Paper›PMID 22117049›Full record

ArticleBlood2012

Cytoprotective signaling by activated protein C requires protease-activated receptor-3 in podocytes.

Thati Madhusudhan, Hongjie Wang, Beate K Straub, Elisabeth Gröne, Qianxing Zhou, Khurrum Shahzad, Sandra Müller-Krebs, Vedat Schwenger, Bruce Gerlitz, Brian W Grinnell and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
4.8field-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

73 citing papers in PubMed, 126 citations in OpenAlex.

  1. Trial
  2. Review
  3. GPCR Heterodimers: Implications for Biased Signaling.Handbook of experimental pharmacology · 2026
    Review
  4. Article
  5. Article
  6. Serine proteases and protease-activated receptors signaling in the kidney.American journal of physiology. Cell physiology · 2025
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Diversification of PAR signaling through receptor crosstalk.Cellular & molecular biology letters · 2022
    Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. aPC/PAR1 confers endothelial anti-apoptotic activity via a discrete, β-arrestin-2-mediated SphK1-S1PR1-Akt signaling axis.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article

13 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

16 authors at 8 institutions in 3 countries.

Thati MadhusudhanDepartment of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University Magdeburg, Germany.
Hongjie Wang
Beate K Straub
Elisabeth Gröne
Qianxing Zhou
Khurrum Shahzad
Sandra Müller-Krebs
Vedat Schwenger
Bruce Gerlitz
Brian W Grinnell
John H Griffin
Jochen Reiser
Hermann-Josef Gröne
Charles T Esmon
Peter P Nawroth
Berend Isermann
Heidelberg University · DEEli Lilly (United States) · USGerman Cancer Research Center · DEOtto-von-Guericke University Magdeburg · DETongji Hospital · CNOklahoma Medical Research Foundation · USScripps Research Institute · USUniversity of Miami · US

Funding

THROMBUS FORMATION IN BABOONSP01HL031950 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI GRIFFIN, JOHN H · 1985 to 2015
$29.4M
Structure and Function of Protein CR01HL052246 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI GRIFFIN, JOHN H · 2005 to 2017
$9.6M
NHLBI NIH HHS P01 HL031950NHLBI NIH HHS R01 HL052246
6 · The paper itself

Abstract

The cytoprotective effects of activated protein C (aPC) are well established. In contrast, the receptors and signaling mechanism through which aPC conveys cytoprotection in various cell types remain incompletely defined. Thus, within the renal glomeruli, aPC preserves endothelial cells via a protease-activated receptor-1 (PAR-1) and endothelial protein C receptor-dependent mechanism. Conversely, the signaling mechanism through which aPC protects podocytes remains unknown. While exploring the latter, we identified a novel aPC/PAR-dependent cytoprotective signaling mechanism. In podocytes, aPC inhibits apoptosis through proteolytic activation of PAR-3 independent of endothelial protein C receptor. PAR-3 is not signaling competent itself as it requires aPC-induced heterodimerization with PAR-2 (human podocytes) or PAR-1 (mouse podocytes). This cytoprotective signaling mechanism depends on caveolin-1 dephosphorylation. In vivo aPC protects against lipopolysaccharide-induced podocyte injury and proteinuria. Genetic deletion of PAR-3 impairs the nephroprotective effect of aPC, demonstrating the crucial role of PAR-3 for aPC-dependent podocyte protection. This novel, aPC-mediated interaction of PARs demonstrates the plasticity and cell-specificity of cytoprotective aPC signaling. The evidence of specific, dynamic signaling complexes underlying aPC-mediated cytoprotection may allow the design of cell type specific targeted therapies.

Indexed as

ApoptosisCytoprotectionAnimalsAnticoagulantsCell CommunicationCells, CulturedHumansKidney GlomerulusLipopolysaccharidesMembrane MicrodomainsMicePodocytesProtein CProtein MultimerizationReceptor, PAR-1Receptors, ThrombinAnticoagulantsLipopolysaccharidesprotease-activated receptor 3Protein CReceptor, PAR-1Receptors, ThrombinThrombin

Identifiers

PMID22117049
PMCPMC3398751
OpenAlexW2042673794

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.