Evidence map›Paper›PMID 18054338›Full record

ArticleBiochimica et biophysica acta2008

The epidermal growth factor receptor (EGFR) is proteolytically modified by the Matriptase-Prostasin serine protease cascade in cultured epithelial cells.

Mengqian Chen, Li-Mei Chen, Chen-Yong Lin, Karl X Chai

Open access · greenAbstract read
In one paragraph

Article in Biochimica et biophysica acta, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.2field-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

36 citing papers in PubMed, 61 citations in OpenAlex.

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  4. WNK1 controls endosomal trafficking through TRIM27-dependent regulation of actin assembly.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  14. Functional analysis of corin protein domains required for PCSK6-mediated activation.The international journal of biochemistry & cell biology · 2018
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  15. Review
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  17. Molecular Pathways: Receptor Ectodomain Shedding in Treatment, Resistance, and Monitoring of Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Review
  18. Article
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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

4 authors at 2 institutions in 1 country.

Mengqian ChenBiomolecular Science Center, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32816-2364, USA.
Li-Mei Chen
Chen-Yong Lin
Karl X Chai
University of Central Florida · USUniversity of Maryland, Baltimore · US

Funding

Matriptase: Activation and Function in Breast CancerR01CA096851 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI LIN, CHEN-YONG · 2003 to 2007
$1.4M
Deregulation of Matriptase in Breast Cancer CellsR01CA104944 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI LIN, CHEN-YONG · 2004 to 2008
$1.4M
Beta Catenin in Prostate CancerR01CA096854 · NCI · GEORGETOWN UNIVERSITY · PI GELMANN, EDWARD P · 2002 to 2005
$952k
NCI NIH HHS R01 CA096851NCI NIH HHS R01 CA 096854NCI NIH HHS R01 CA 104944NCI NIH HHS R01 CA104944
6 · The paper itself

Abstract

Prostasin is expressed at the apical surface of normal epithelial cells and suppresses in vitro invasion of cancer cells. Prostasin re-expression in the PC-3 prostate carcinoma cells down-regulated the epidermal growth factor receptor (EGFR) protein expression and EGF-induced phosphorylation of the extracellular signal-regulated kinases (Erk1/2). We report here that prostasin and its activating enzyme matriptase are capable of inducing proteolytic cleavages in the EGFR extracellular domain (ECD) when co-expressed in the FT-293 cells, generating two amino-terminally truncated fragments EGFR135 and EGFR110, at 135 and 110 kDa. Prostasin's role in EGFR cleavage is dependent on the serine active-site but not the GPI-anchor. The modifications of EGFR were confirmed to be on the primary structure by deglycosylation. EGFR135 and EGFR110 are not responsive to EGF stimulation, indicating loss of the ligand-binding domains. EGFR110 is constitutively phosphorylated and in its presence Erk1/2 phosphorylation is increased in the absence of EGF. The protease-induced EGFR cleavages are not dependent on EGFR phosphorylation. The EGFR ECD proteolytic modification by matriptase-prostasin is also observed in the BEAS-2B normal lung epithelial cells, the BPH-1 benign prostate hyperplasia and the MDA-MB-231 breast cancer cell lines; and represents a novel mechanism for epithelial cells to modulate EGF-EGFR signaling.

Indexed as

Cell LineCell Line, TumorCells, CulturedEpithelial CellsErbB ReceptorsHumansProstasinSerine EndopeptidasesTyrosineErbB ReceptorsmatriptaseProstasinSerine EndopeptidasesTyrosine

Identifiers

PMID18054338
PMCPMC3214967
OpenAlexW2120547622

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.