Evidence map›Paper›PMID 19176371›Full record

ArticleCancer research2009

Low-density lipoprotein receptor-related protein 1 promotes cancer cell migration and invasion by inducing the expression of matrix metalloproteinases 2 and 9.

Heesang Song, Yonghe Li, Jiyeon Lee, Alan L Schwartz, Guojun Bu

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

114 citing papers in PubMed, 184 citations in OpenAlex.

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54 more citing papers are in PubMed but not listed here.

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

5 authors at 4 institutions in 2 countries.

Heesang SongEdward Mallinckrodt Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri 63110, USA.
Yonghe Li
Jiyeon Lee
Alan L Schwartz
Guojun Bu
Mallinckrodt (Ireland) · IENeuroDevelopment Center · USSouthern Research Institute · USWashington University in St. Louis · US

Funding

Molecular Pathobiology of LRP1B Tumor SuppressorR01CA100520 · NCI · WASHINGTON UNIVERSITY · PI BU, GUOJUN · 2004 to 2008
$1.4M
NCI NIH HHS CA100520NCI NIH HHS R01 CA100520
6 · The paper itself

Abstract

The low-density lipoprotein receptor-related protein 1 (LRP1) is a multifunctional endocytic receptor involved in the metabolism of various extracellular ligands, including proteinases, that play critical roles in tumor invasion. Although several studies have shown an increased expression of LRP1 in cancer cells, its function in tumor development and progression remains largely unclear. Here, we reveal a novel mechanism by which LRP1 induces the expression of matrix metalloproteinase 2 (MMP2) and MMP9 and thereby promotes the migration and invasion of human glioblastoma U87 cells. Knockdown of LRP1 expression greatly decreased U87 cell migration and invasion, which was rescued by the forced expression of a functional LRP1 minireceptor. Inhibition of ligand binding to LRP1 by a specific antagonist, receptor-associated protein, also led to reduced cancer cell migration and invasion. Because MMPs play critical roles in cancer cell migration and invasion, we examined the expression of several MMPs and found that the expression of functional MMP2 and MMP9 was selectively decreased in LRP1 knockdown cells. More importantly, decreased cell migration and invasion of LRP1 knockdown cells were completely rescued by exogenous expression of MMP2 or MMP9, suggesting that these MMPs are likely downstream targets of LRP1-mediated signaling. We further show that the level of phosphorylated extracellular signal-regulated kinase (ERK) was significantly decreased in LRP1-silenced cells, suggesting that ERK is a potential mediator of LRP1-regulated MMP2 and MMP9 expression in U87 cells. Together, our data strongly suggest that LRP1 promotes glioblastoma cell migration and invasion by regulating the expression and function of MMP2 and MMP9 perhaps via an ERK-dependent signaling pathway.

Indexed as

Cell Line, TumorCell MovementEnzyme InductionExtracellular Signal-Regulated MAP KinasesGlioblastomaHumansLigandsLow Density Lipoprotein Receptor-Related Protein-1Matrix Metalloproteinase 2Matrix Metalloproteinase 9Neoplasm InvasivenessRNA, Small InterferingTransfectionUp-RegulationExtracellular Signal-Regulated MAP KinasesLigandsLow Density Lipoprotein Receptor-Related Protein-1Matrix Metalloproteinase 2Matrix Metalloproteinase 9RNA, Small Interfering

Identifiers

PMID19176371
PMCPMC2633434
OpenAlexW2117450795

What OpenQuestion holds

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Registered trials

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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.