Evidence map›Paper›PMID 23805312›Full record

ArticlePloS one2013

Computational Model of Gab1/2-Dependent VEGFR2 Pathway to Akt Activation.

Wan Hua Tan, Aleksander S Popel, Feilim Mac Gabhann

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

24 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Targeting SHP2 phosphatase in hematological malignancies.Expert opinion on therapeutic targets · 2022
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Crosstalk in transition: the translocation of Akt.Journal of mathematical biology · 2019
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Systems biology of the microvasculature.Integrative biology : quantitative biosciences from nano to macro · 2015
    Review
  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

3 authors at 2 institutions in 1 country.

Wan Hua TanDepartment of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America.
Aleksander S Popel
Feilim Mac Gabhann
Johns Hopkins University · USJohns Hopkins Medicine · US

Funding

TRANS NETWORK PROJECTSU54CA143868 · NCI · JOHNS HOPKINS UNIVERSITY · PI WIRTZ, DENIS · 2009 to 2013
$13.7M
Systems Biology of Angiogenesis in Peripheral Arterial DiseaseR01HL101200 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI POPEL, ALEKSANDER S. · 2010 to 2022
$10.7M
Predictive experiment-based multiscale models of the tumor immune microenvironment and immunotherapy in breast cancerR01CA138264 · NCI · JOHNS HOPKINS UNIVERSITY · PI POPEL, ALEKSANDER S. · 2009 to 2023
$8.1M
Endothelial cell decisions integrate soluble and matrix-bound VEGF gradientsR00HL093219 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI MAC GABHANN, FEILIM C · 2009 to 2011
$746k
NCI NIH HHS R01 CA138264NCI NIH HHS U54 CA143868NHLBI NIH HHS R00 HL093219NHLBI NIH HHS R01 HL101200
6 · The paper itself

Abstract

Vascular endothelial growth factor (VEGF) signal transduction is central to angiogenesis in development and in pathological conditions such as cancer, retinopathy and ischemic diseases. However, no detailed mass-action models of VEGF receptor signaling have been developed. We constructed and validated the first computational model of VEGFR2 trafficking and signaling, to study the opposing roles of Gab1 and Gab2 in regulation of Akt phosphorylation in VEGF-stimulated endothelial cells. Trafficking parameters were optimized against 5 previously published in vitro experiments, and the model was validated against six independent published datasets. The model showed agreement at several key nodes, involving scaffolding proteins Gab1, Gab2 and their complexes with Shp2. VEGFR2 recruitment of Gab1 is greater in magnitude, slower, and more sustained than that of Gab2. As Gab2 binds VEGFR2 complexes more transiently than Gab1, VEGFR2 complexes can recycle and continue to participate in other signaling pathways. Correspondingly, the simulation results show a log-linear relationship between a decrease in Akt phosphorylation and Gab1 knockdown while a linear relationship was observed between an increase in Akt phosphorylation and Gab2 knockdown. Global sensitivity analysis demonstrated the importance of initial-concentration ratios of antagonistic molecular species (Gab1/Gab2 and PI3K/Shp2) in determining Akt phosphorylation profiles. It also showed that kinetic parameters responsible for transient Gab2 binding affect the system at specific nodes. This model can be expanded to study multiple signaling contexts and receptor crosstalk and can form a basis for investigation of therapeutic approaches, such as tyrosine kinase inhibitors (TKIs), overexpression of key signaling proteins or knockdown experiments.

Indexed as

Computer SimulationModels, BiologicalAdaptor Proteins, Signal TransducingEnzyme ActivationHumansPhosphatidylinositol 3-KinasesProtein Tyrosine Phosphatase, Non-Receptor Type 11Proto-Oncogene Proteins c-aktSignal TransductionVascular Endothelial Growth Factor Receptor-2Adaptor Proteins, Signal TransducingGAB1 protein, humanGAB2 protein, humanKDR protein, humanPhosphatidylinositol 3-KinasesProtein Tyrosine Phosphatase, Non-Receptor Type 11Proto-Oncogene Proteins c-aktVascular Endothelial Growth Factor Receptor-2

Identifiers

PMID23805312
PMCPMC3689841
OpenAlexW1986274454

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.