Evidence map›Paper›PMID 21873429›Full record

ArticleThe Journal of biological chemistry2011

Ca2+ influx through reverse mode Na+/Ca2+ exchange is critical for vascular endothelial growth factor-mediated extracellular signal-regulated kinase (ERK) 1/2 activation and angiogenic functions of human endothelial cells.

Petros Andrikopoulos, Akemichi Baba, Toshio Matsuda, Mustafa B A Djamgoz, Muhammad M Yaqoob, Suzanne A Eccles

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

48 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. SECS, drugs, and Rac1&Rho: regulation of EnNaC in vascular endothelial cells.Pflugers Archiv : European journal of physiology · 2025
    Article
  5. Article
  6. Review
  7. Store-Operated CaJournal of clinical medicine · 2023
    Review
  8. Article
  9. Pharmacologic modulation of intracellular NaProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Article
  11. CaCancers · 2021
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Endothelial CaInternational journal of molecular sciences · 2019
    Review
  19. Article
  20. 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 5 institutions in 2 countries.

Petros AndrikopoulosCancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research, McElwain Laboratories, Cotswold Road, Belmont, Sutton, Surrey SM2 5NG, United Kingdom; Division of Cell and Molecular Biology, Neuroscience Solutions to Cancer Research Group, Imperial College London, London SW7 2AZ, United Kingdom; Translational Medicine and Therapeutics, William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary's University of London, London EC1M 6BQ, United Kingdom. Electronic address: p.andrikopoulos@qmul.ac.uk.
Akemichi BabaLaboratory of Medicinal Pharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871.
Toshio MatsudaLaboratory of Medicinal Pharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871.
Mustafa B A DjamgozDivision of Cell and Molecular Biology, Neuroscience Solutions to Cancer Research Group, Imperial College London, London SW7 2AZ, United Kingdom.
Muhammad M YaqoobTranslational Medicine and Therapeutics, William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary's University of London, London EC1M 6BQ, United Kingdom.
Suzanne A EcclesCancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research, McElwain Laboratories, Cotswold Road, Belmont, Sutton, Surrey SM2 5NG, United Kingdom. Electronic address: sue.eccles@icr.ac.uk.
Osaka University · JPCancer Research UK · GBImperial College London · GBQueen Mary University of London · GBWilliam Harvey Research Institute · GB

Funding

British Heart Foundation FS/06/22Cancer Research UK 11566Cancer Research UK C309/A8274
6 · The paper itself

Abstract

VEGF is a key angiogenic cytokine and a major target in anti-angiogenic therapeutic strategies. In endothelial cells (ECs), VEGF binds VEGF receptors and activates ERK1/2 through the phospholipase γ (PLCγ)-PKCα-B-Raf pathway. Our previous work suggested that influx of extracellular Ca(2+) is required for VEGF-induced ERK1/2 activation, and we hypothesized that this could occur through reverse mode (Ca(2+) in and Na(+) out) Na(+)-Ca(2+) exchange (NCX). However, the role of NCX activity in VEGF signaling and angiogenic functions of ECs had not previously been described. Here, using human umbilical vein ECs (HUVECs), we report that extracellular Ca(2+) is required for VEGF-induced ERK1/2 activation and that release of Ca(2+) from intracellular stores alone, in the absence of extracellular Ca(2+), is not sufficient to activate ERK1/2. Furthermore, inhibitors of reverse mode NCX suppressed the VEGF-induced activation of ERK1/2 in a time- and dose-dependent manner and attenuated VEGF-induced Ca(2+) transients. Knockdown of NCX1 (the main NCX isoform in HUVECs) by siRNA confirmed the pharmacological data. A panel of NCX inhibitors also significantly reduced VEGF-induced B-Raf activity and inhibited PKCα translocation to the plasma membrane and total PKC activity in situ. Finally, NCX inhibitors reduced VEGF-induced HUVEC proliferation, migration, and tubular differentiation in surrogate angiogenesis functional assays in vitro. We propose that Ca(2+) influx through reverse mode NCX is required for the activation and the targeting of PKCα to the plasma membrane, an essential step for VEGF-induced ERK1/2 phosphorylation and downstream EC functions in angiogenesis.

Indexed as

Neovascularization, PathologicCalciumCell ProliferationCells, CulturedEndothelial CellsGene SilencingHumansIonsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3PhosphorylationProtein Kinase C-alphaSodium-Calcium ExchangerUmbilical VeinsVascular Endothelial Growth Factor ACalciumIonsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Protein Kinase C-alphaSodium-Calcium ExchangerVascular Endothelial Growth Factor A

Identifiers

PMID21873429
PMCPMC3207468
OpenAlexW2102278085

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.