Evidence map›Paper›PMID 23289900›Full record

ArticleMolecular cancer2013

Decreased expression of ADAMTS-1 in human breast tumors stimulates migration and invasion.

Vanessa M Freitas, Jônatas Bussador do Amaral, Thaiomara A Silva, Emerson S Santos, Flávia R Mangone, João de Jesus Pinheiro, Ruy G Jaeger, Maria A Nagai, Gláucia Maria Machado-Santelli

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
5.4field-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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 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

9 authors at 4 institutions in 1 country.

Vanessa M FreitasDepartamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av, Prof, Lineu Prestes 1524, Ed Biomédicas 1 sala 428, São Paulo, SP, 05508-000, Brazil. vfreitas@usp.br
Jônatas Bussador do Amaral
Thaiomara A Silva
Emerson S Santos
Flávia R Mangone
João de Jesus Pinheiro
Ruy G Jaeger
Maria A Nagai
Gláucia Maria Machado-Santelli
Universidade de São Paulo · BRHospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRUniversidade de Ribeirão Preto · BRUniversidade Federal do Pará · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundADAMTS-1 (a disintegrin and metalloprotease with thrombospondin motifs) is a member of the ADAMTS family of metalloproteases. Here, we investigated mRNA and protein levels of ADAMTS-1 in normal and neoplastic tissues using qPCR, immunohistochemistry and immunoblot analyses, and we addressed the role of ADAMTS-1 in regulating migration, invasion and invadopodia formation in breast tumor cell lines.

resultsIn a series of primary breast tumors, we observed variable levels of ADAMTS-1 mRNA expression but lower levels of ADAMTS-1 protein expression in human breast cancers as compared to normal tissue, with a striking decrease observed in high-malignancy cases (triple-negative for estrogen, progesterone and Her-2). This result prompted us to analyze the effect of ADAMTS-1 knockdown in breast cancer cells in vitro. MDA-MB-231 cells with depleted ADAMTS-1 expression demonstrated increased migration, invasion and invadopodia formation. The regulatory mechanisms underlying the effects of ADAMTS-1 may be related to VEGF, a growth factor involved in migration and invasion. MDA-MB-231 cells with depleted ADAMTS-1 showed increased VEGF concentrations in conditioned medium capable of inducing human endothelial cells (HUVEC) tubulogenesis. Furthermore, expression of the VEGF receptor (VEGFR2) was increased in MDA-MB-231 cells as compared to MCF7 cells. To further determine the relationship between ADAMTS-1 and VEGF regulating breast cancer cells, MDA-MB-231 cells with reduced expression of ADAMTS-1 were pretreated with a function-blocking antibody against VEGF and then tested in migration and invasion assays; both were partially rescued to control levels.

conclusionsADAMTS-1 expression was decreased in human breast tumors, and ADAMTS-1 knockdown stimulated migration, invasion and invadopodia formation in breast cancer cells in vitro. Therefore, this series of experiments suggests that VEGF is involved in the effects mediated by ADAMTS-1 in breast cancer cells.

Indexed as

Cell MovementGene ExpressionADAM ProteinsADAMTS1 ProteinAdultAgedAged, 80 and overBreast NeoplasmsCarcinoma, Ductal, BreastCell Surface ExtensionsErb-b2 Receptor Tyrosine KinasesFemaleGene Knockdown TechniquesHumansLymphatic MetastasisMCF-7 CellsADAM ProteinsADAMTS1 ProteinADAMTS1 protein, humanERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesReceptors, EstrogenReceptors, ProgesteroneRNA, Small InterferingVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-2VEGFA protein, human

Identifiers

PMID23289900
PMCPMC3600045
OpenAlexW2085351309

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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.