Evidence map›Paper›PMID 23620784›Full record

ArticlePloS one2013

Propagation of human prostate cancer stem-like cells occurs through EGFR-mediated ERK activation.

Adrian P Rybak, Alistair J Ingram, Damu Tang

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 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Prostate cancer stem cells and their targeted therapies.Frontiers in cell and developmental biology · 2024
    Review
  5. Prostate Cancer Stem Cells: Biology and Treatment Implications.International journal of molecular sciences · 2023
    Review
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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 3 institutions in 1 country.

Adrian P RybakDivision of Nephrology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
Alistair J Ingram
Damu Tang
Hamilton General Hospital · CAMcMaster University · CASt. Joseph's Hospital · CA

Funding

Canadian Institutes of Health Research RMS 79-71
6 · The paper itself

Abstract

Prostate cancer stem-like cells (PCSCs) are being intensely investigated largely owing to their contributions towards prostate tumorigenesis, however, our understanding of PCSC biology, including their critical pathways, remains incompletely understood. While epidermal growth factor (EGF) is widely used in maintaining PCSC cells in vitro, the importance of EGF-dependent signaling and its downstream pathways in PCSC self-renewal are not well characterized. By investigating DU145 sphere cells, a population of prostate cancer cells with stem-like properties, we report here that epidermal growth factor receptor (EGFR) signaling plays a critical role in the propagation of DU145 PCSCs. Activation of EGFR signaling via addition of EGF and ectopic expression of a constitutively-active EGFR mutant (EGFRvIII) increased sphere formation. Conversely, inhibition of EGFR signaling by using EGFR inhibitors (AG1478 and PD168393) and knockdown of EGFR significantly inhibited PCSC self-renewal. Consistent with the MEK-ERK pathway being a major target of EGFR signaling, activation of the MEK-ERK pathway contributed to EGFR-facilitated PCSC propagation. Modulation of EGFR signaling affected extracellular signal-related kinase (ERK) activation. Inhibition of ERK activation through multiple approaches, including treatment with the MEK inhibitor U0126, ectopic expression of dominant-negative MEK1(K97M), and knockdown of either ERK1 or ERK2 resulted in a robust reduction in PCSC propagation. Collectively, the present study provides evidence that EGFR signaling promotes PCSC self-renewal, in part, by activating the MEK-ERK pathway.

Indexed as

Cell Line, TumorCell ProliferationEnzyme ActivationErbB ReceptorsExtracellular Signal-Regulated MAP KinasesGene Knockdown TechniquesHEK293 CellsHumansMaleMitogen-Activated Protein Kinase KinasesMitogensNeoplastic Stem CellsProstatic NeoplasmsSignal TransductionSpheroids, CellularEGFR protein, humanepidermal growth factor receptor VIIIErbB ReceptorsExtracellular Signal-Regulated MAP KinasesMitogen-Activated Protein Kinase KinasesMitogens

Identifiers

PMID23620784
PMCPMC3631151
OpenAlexW1978167160

What OpenQuestion holds

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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.