Evidence map›Paper›PMID 22096485›Full record

ArticlePloS one2011

Enhanced activity of meprin-α, a pro-migratory and pro-angiogenic protease, in colorectal cancer.

Daniel Lottaz, Christoph A Maurer, Agnès Noël, Silvia Blacher, Maya Huguenin, Alexandra Nievergelt, Verena Niggli, Alexander Kern, Stefan Müller, Frank Seibold and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
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  7. Tethering soluble meprin α in an enzyme complex to the cell surface affects IBD-associated genes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
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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

14 authors at 7 institutions in 3 countries.

Daniel LottazDepartment of Rheumatology, Clinical Immunology and Allergology, Inselspital, University Hospital of Bern, Bern, Switzerland. daniel.lottaz@insel.ch
Christoph A Maurer
Agnès Noël
Silvia Blacher
Maya Huguenin
Alexandra Nievergelt
Verena Niggli
Alexander Kern
Stefan Müller
Frank Seibold
Helmut Friess
Christoph Becker-Pauly
Walter Stöcker
Erwin E Sterchi
University of Bern · CHJohannes Gutenberg University Mainz · DEUniversity of Liège · BEKantonsspital Baselland · CHTechnical University of Munich · DETU Dresden · DEUniversity Hospital of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Meprin-α is a metalloprotease overexpressed in cancer cells, leading to the accumulation of this protease in a subset of colorectal tumors. The impact of increased meprin-α levels on tumor progression is not known. We investigated the effect of this protease on cell migration and angiogenesis in vitro and studied the expression of meprin-α mRNA, protein and proteolytic activity in primary tumors at progressive stages and in liver metastases of patients with colorectal cancer, as well as inhibitory activity towards meprin-α in sera of cancer patient as compared to healthy controls. We found that the hepatocyte growth factor (HGF)-induced migratory response of meprin-transfected epithelial cells was increased compared to wild-type cells in the presence of plasminogen, and that the angiogenic response in organ-cultured rat aortic explants was enhanced in the presence of exogenous human meprin-α. In patients, meprin-α mRNA was expressed in colonic adenomas, primary tumors UICC (International Union Against Cancer) stage I, II, III and IV, as well as in liver metastases. In contrast, the corresponding protein accumulated only in primary tumors and liver metastases, but not in adenomas. However, liver metastases lacked meprin-α activity despite increased expression of the corresponding protein, which correlated with inefficient zymogen activation. Sera from cancer patients exhibited reduced meprin-α inhibition compared to healthy controls. In conclusion, meprin-α activity is regulated differently in primary tumors and metastases, leading to high proteolytic activity in primary tumors and low activity in liver metastases. By virtue of its pro-migratory and pro-angiogenic activity, meprin-α may promote tumor progression in colorectal cancer.

Indexed as

AdultAgedAged, 80 and overAnimalsBlotting, NorthernCell LineCell MovementColorectal NeoplasmsDogsFemaleHepatocyte Growth FactorHumansImmunoblottingImmunohistochemistryImmunoprecipitationIn Vitro TechniquesHepatocyte Growth FactorMannose-Binding Lectinmeprin AMetalloendopeptidasesPlasminogenRecombinant Proteins

Identifiers

PMID22096485
PMCPMC3214016
OpenAlexW2075882731

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.