Evidence map›Paper›PMID 17389401›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Coordinate expression and functional profiling identify an extracellular proteolytic signaling pathway.

Ami S Bhatt, Alana Welm, Christopher J Farady, Maximiliano Vásquez, Keith Wilson, Charles S Craik

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 99 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Ami S BhattDepartment of Pharmaceutical Chemistry, University of California, 600 16th Street, San Francisco, CA 94158, USA.
Alana Welm
Christopher J Farady
Maximiliano Vásquez
Keith Wilson
Charles S Craik
University of California, San Francisco · USPDL BioPharma (United States) · USSan Francisco Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A multidisciplinary method combining transcriptional data, specificity profiling, and biological characterization of an enzyme may be used to predict novel substrates. By integrating protease substrate profiling with microarray gene coexpression data from nearly 2,000 human normal and cancerous tissue samples, three fundamental components of a protease-activated signaling pathway were identified. We find that MT-SP1 mediates extracellular signaling by regulating the local activation of the prometastatic growth factor MSP-1. We demonstrate MT-SP1 expression in peritoneal macrophages, and biochemical methods confirm the ability of MT-SP1 to cleave and activate pro-MSP-1 in vitro and in a cellular context. MT-SP1 induced the ability of MSP-1 to inhibit nitric oxide production in bone marrow macrophages. Addition of HAI-1 or an MT-SP1-specific antibody inhibitor blocked the proteolytic activation of MSP-1 at the cell surface of peritoneal macrophages. Taken together, our work indicates that MT-SP1 is sufficient for MSP-1 activation and that MT-SP1, MSP-1, and the previously shown MSP-1 tyrosine kinase receptor RON are required for peritoneal macrophage activation. This work shows that this triad of growth factor, growth factor activator protease, and growth factor receptor is a protease-activated signaling pathway. Individually, MT-SP1 and RON overexpression have been implicated in cancer progression and metastasis. Transcriptional coexpression of these genes suggests that this signaling pathway may be involved in several human cancers.

Indexed as

Gene Expression ProfilingSignal TransductionAnimalsBone Marrow CellsCell Line, TumorCells, CulturedFemaleHumansMacrophage ActivationMacrophages, PeritonealMaleMiceNitric OxideOligonucleotide Array Sequence AnalysisProteinase Inhibitory Proteins, SecretoryRecombinant ProteinsNitric OxideProteinase Inhibitory Proteins, SecretoryRecombinant ProteinsSerine EndopeptidasesSPINT1 protein, humanST14 protein, human

Identifiers

PMID17389401
PMCPMC1838401
OpenAlexW2141048453

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.