Evidence map›Paper›PMID 26286023›Full record

ArticleScience signaling2015

Stromal cell-derived factor 2 is critical for Hsp90-dependent eNOS activation.

Mauro Siragusa, Florian Fröhlich, Eon Joo Park, Michael Schleicher, Tobias C Walther, William C Sessa

Open access · greenAbstract read
In one paragraph

Article in Science signaling, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Subcellular Localization Guides eNOS Function.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Article
  7. Unbiased proteomics identifies plasminogen activator inhibitor-1 as a negative regulator of endothelial nitric oxide synthase.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. The eNOS signalosome and its link to endothelial dysfunction.Pflugers Archiv : European journal of physiology · 2016
    Review
  16. 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

6 authors at 1 institution in 1 country.

Mauro SiragusaVascular Biology and Therapeutics Program, Department of Pharmacology, Yale University School of Medicine, 10 Amistad Street, New Haven, CT 06520, USA.
Florian FröhlichDepartment of Genetics and Complex Diseases, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA.
Eon Joo ParkVascular Biology and Therapeutics Program, Department of Pharmacology, Yale University School of Medicine, 10 Amistad Street, New Haven, CT 06520, USA.
Michael SchleicherVascular Biology and Therapeutics Program, Department of Pharmacology, Yale University School of Medicine, 10 Amistad Street, New Haven, CT 06520, USA.
Tobias C WaltherDepartment of Genetics and Complex Diseases, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA 02115, USA.
William C SessaVascular Biology and Therapeutics Program, Department of Pharmacology, Yale University School of Medicine, 10 Amistad Street, New Haven, CT 06520, USA. william.sessa@yale.edu.
Yale University · US

Funding

Surgery / Physiology CoreP01HL107205 · NHLBI · YALE UNIVERSITY · PI SIMONS, MICHAEL · 2012 to 2022
$18.8M
SOCS-1 and endothelial dysfunction in graft arteriosclerosisP01HL070295 · NHLBI · YALE UNIVERSITY · PI POBER, JORDAN S · 2001 to 2010
$17.9M
PHOSPHORYLATION AND ENDOTHELIAL NITRIC OXIDE PRODUCTIONR01HL064793 · NHLBI · YALE UNIVERSITY · PI SESSA, WILLIAM C · 2000 to 2016
$6.3M
Endothelial NOS by protein to protein interactionsR37HL061371 · NHLBI · YALE UNIVERSITY · PI SESSA, WILLIAM C · 2009 to 2017
$4.1M
Regulation of vascular remodeling &angiogenesis by NogoR01HL081190 · NHLBI · YALE UNIVERSITY · PI SESSA, WILLIAM C · 2005 to 2014
$4.1M
Endothelial NOS by Protein-Protein IntractionsR01HL061371 · NHLBI · YALE UNIVERSITY · PI SESSA, WILLIAM C · 1999 to 2008
$3.6M
NHLBI NIH HHS P01 HL070295NHLBI NIH HHS P01 HL107205NHLBI NIH HHS P01 HL70295NHLBI NIH HHS R01 HL061371NHLBI NIH HHS R01 HL064793NHLBI NIH HHS R01 HL081190NHLBI NIH HHS R01HL081190NHLBI NIH HHS R01 HL61371NHLBI NIH HHS R01 HL64793NHLBI NIH HHS R37 HL061371
6 · The paper itself

Abstract

Endothelial nitric oxide synthase (eNOS) catalyzes the conversion of l-arginine and molecular oxygen into l-citrulline and nitric oxide (NO), a gaseous second messenger that influences cardiovascular physiology and disease. Several mechanisms regulate eNOS activity and function, including phosphorylation at Ser and Thr residues and protein-protein interactions. Combining a tandem affinity purification approach and mass spectrometry, we identified stromal cell-derived factor 2 (SDF2) as a component of the eNOS macromolecular complex in endothelial cells. SDF2 knockdown impaired agonist-stimulated NO synthesis and decreased the phosphorylation of eNOS at Ser(1177), a key event required for maximal activation of eNOS. Conversely, SDF2 overexpression dose-dependently increased NO synthesis through a mechanism involving Akt and calcium (induced with ionomycin), which increased the phosphorylation of Ser(1177) in eNOS. NO synthesis by iNOS (inducible NOS) and nNOS (neuronal NOS) was also enhanced upon SDF2 overexpression. We found that SDF2 was a client protein of the chaperone protein Hsp90, interacting preferentially with the M domain of Hsp90, which is the same domain that binds to eNOS. In endothelial cells exposed to vascular endothelial growth factor (VEGF), SDF2 was required for the binding of Hsp90 and calmodulin to eNOS, resulting in eNOS phosphorylation and activation. Thus, our data describe a function for SDF2 as a component of the Hsp90-eNOS complex that is critical for signal transduction in endothelial cells.

Indexed as

AnimalsCell LineCells, CulturedChlorocebus aethiopsChromatography, LiquidCOS CellsEndothelial CellsEnzyme ActivationHEK293 CellsHSP90 Heat-Shock ProteinsHumansImmunoblottingNitric OxideNitric Oxide Synthase Type IIIPhosphorylationProtein BindingHSP90 Heat-Shock ProteinsNitric OxideNitric Oxide Synthase Type IIINOS3 protein, humanProteinsSDF2 protein, humanSerineVascular Endothelial Growth Factor A

Identifiers

PMID26286023
PMCPMC4790114
OpenAlexW2125411280

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Registered trials

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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.