Evidence map›Paper›PMID 27588391›Full record

ArticleOncotarget2016

Regulation of matrix metalloproteinases (MMPs) expression and secretion in MDA-MB-231 breast cancer cells by LIM and SH3 protein 1 (LASP1).

Marcel Endres, Susanne Kneitz, Martin F Orth, Ruwan K Perera, Alma Zernecke, Elke Butt

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

32 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. LASP1, a Novel Protein in Spermatozoa and Acrosome Reaction.Molecular reproduction and development · 2026
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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 1 institution in 1 country.

Marcel EndresInstitute of Experimental Biomedicine II, University Medical Clinic of Wuerzburg, Wuerzburg, Germany.
Susanne KneitzPhysiological Chemistry, Biozentrum, University of Wuerzburg, Am Hubland, Wuerzburg, Germany.
Martin F OrthInstitute of Experimental Biomedicine II, University Medical Clinic of Wuerzburg, Wuerzburg, Germany.
Ruwan K PereraInstitute of Experimental Biomedicine II, University Medical Clinic of Wuerzburg, Wuerzburg, Germany.
Alma ZerneckeInstitute of Experimental Biomedicine II, University Medical Clinic of Wuerzburg, Wuerzburg, Germany.
Elke ButtInstitute of Experimental Biomedicine II, University Medical Clinic of Wuerzburg, Wuerzburg, Germany.
University of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The process of tumor invasion requires degradation of extracellular matrix by proteolytic enzymes. Cancer cells form protrusive invadopodia, which produce and release matrix metalloproteinases (MMPs) to degrade the basement membrane thereby enabling metastasis. We investigated the effect of LASP1, a newly identified protein in invadopodia, on expression, secretion and activation of MMPs in invasive breast tumor cell lines.By analyzing microarray data of in-house generated control and LASP1-depleted MDA-MB-231 breast cancer cells, we observed downregulation of MMP1, -3 and -9 upon LASP1 depletion. This was confirmed by Western blot analysis. Conversely, rescue experiments restored in part MMP expression and secretion. The regulatory effect of LASP1 on MMP expression was also observed in BT-20 breast cancer cells as well as in prostate and bladder cancer cell lines.In line with bioinformatic FunRich analysis of our data, which mapped a high regulation of transcription factors by LASP1, public microarray data analysis detected a correlation between high LASP1 expression and enhanced c-Fos levels, a protein that is part of the transcription factor AP-1 and known to regulate MMP expression. Compatibly, in luciferase reporter assays, AP-1 showed a decreased transcriptional activity after LASP1 knockdown.Zymography assays and Western blot analysis revealed an additional promotion of MMP secretion into the extracellular matrix by LASP1, thus, most likely, altering the microenvironment during cancer progression.The newly identified role of LASP1 in regulating matrix degradation by affecting MMP transcription and secretion elucidated the migratory potential of LASP1 overexpressing aggressive tumor cells in earlier studies.

Indexed as

Adaptor Proteins, Signal TransducingBinding SitesBreast NeoplasmsCell Line, TumorComputational BiologyCytoskeletal ProteinsDatabases, GeneticFemaleGene Expression ProfilingGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHumansLIM Domain ProteinsMaleMatrix Metalloproteinase 1Matrix Metalloproteinase 3Adaptor Proteins, Signal TransducingCytoskeletal ProteinsLASP1 protein, humanLIM Domain ProteinsMatrix Metalloproteinase 1Matrix Metalloproteinase 3Matrix Metalloproteinase 9Matrix Metalloproteinases, SecretedMMP1 protein, humanMMP3 protein, humanMMP9 protein, humanTranscription Factor AP-1AP-1c-Fosextracellular matrixLASP1matrix metalloproteinases

Identifiers

PMID27588391
PMCPMC5325439
OpenAlexW2512937619

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.