Evidence map›Paper›PMID 17452424›Full record

ArticleGut2007

Activation of the epidermal growth factor signalling pathway by tissue plasminogen activator in pancreas cancer cells.

Mariano Hurtado, Juan José Lozano, Elisabeth Castellanos, Luis A López-Fernández, Keith Harshman, Carlos Martínez-A, Angel R Ortiz, Timothy M Thomson, Rosanna Paciucci

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. New Insights into Diabetes Cell Therapy.Current diabetes reports · 2016
    Review
  5. Inhibition of progression of PanIN through antagonizing EGFR.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Molecular biology of pancreatic cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2008
    Review
  14. Novel actions of tissue-type plasminogen activator in chronic kidney disease.Frontiers in bioscience : a journal and virtual library · 2008
    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

9 authors at 5 institutions in 1 country.

Mariano HurtadoUnitat de Recerca Biomédica, Institut de Recerca, Hospital Vall d'Hebrón, Pg Vall d'Hebrón 119-129, Barcelona 08035, Spain.
Juan José Lozano
Elisabeth Castellanos
Luis A López-Fernández
Keith Harshman
Carlos Martínez-A
Angel R Ortiz
Timothy M Thomson
Rosanna Paciucci
Vall d'Hebron Institut de Recerca · ESCentro Nacional de Biotecnología · ESUniversidad Autónoma de Madrid · ESCentro de Biología Molecular Severo Ochoa · ESConsejo Superior de Investigaciones Científicas · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTissue plasminogen activator (tPA) is the major activator of plasminogen in plasma. This serine protease is overexpressed by exocrine pancreas tumour cells, where it promotes tumour cell proliferation, growth, and invasion. Here we have explored the signalling pathways used by tPA to activate the proliferation of pancreatic cancer cells.

methodsTranscriptional profiling on cDNA micro arrays was used to analyse the pattern of gene expression in response to tPA compared to the response to epidermal growth factor (EGF) and platelet derived growth factor (PDGF). Results were confirmed using different biochemical assays in which specific kinase inhibitors or RNA interference were used.

resultsTranscriptional profiling showed that tPA modulates the expression of a set of genes commonly regulated by EGF, but distinct from the major set of genes modulated by PDGF. This suggested that tPA and EGF share common signalling pathways, a conclusion supported by further experimental evidence. Firstly, we found that tPA induced a rapid and transient phosphorylation of the EGFR. Secondly, specific EGFR kinase inhibitors, but not PDGFR kinase inhibitors, abolished the tPA induced phosphorylation of the ERK1/2 kinases and cell proliferation. The mitogenic activity of tPA was also inhibited by siRNA depletion of EGFR, thus confirming the involvement of this receptor in tPA triggered signalling. Thirdly, we show that the signalling and mitogenic effects of tPA require its proteolytic activity, the activity of the metalloprotease-9 and active hb-EGF.

conclusionOur results suggest that tPA induces proliferation by triggering a proteolytic cascade that sequentially activates plasmin, metalloprotease-9 (MMP-9) and hb-EGF. These events are required to activate the EGFR signalling pathway and cell proliferation.

Indexed as

Cell DivisionCell Line, TumorEnzyme ActivationEpidermal Growth FactorErbB ReceptorsExtracellular Signal-Regulated MAP KinasesFibrinolysinFibrinolytic AgentsGene Expression RegulationHeparin-binding EGF-like Growth FactorHumansIntercellular Signaling Peptides and ProteinsMatrix Metalloproteinase 9MetalloproteasesPancreatic NeoplasmsPlatelet-Derived Growth FactorEpidermal Growth FactorErbB ReceptorsExtracellular Signal-Regulated MAP KinasesFibrinolysinFibrinolytic AgentsHBEGF protein, humanHeparin-binding EGF-like Growth FactorIntercellular Signaling Peptides and ProteinsMatrix Metalloproteinase 9MetalloproteasesPlatelet-Derived Growth FactorRNA, Small InterferingTissue Plasminogen Activator

Identifiers

PMID17452424
PMCPMC1954978
OpenAlexW2064682395

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.