Evidence map›Paper›PMID 20332114›Full record

ArticleJournal of cell science2010

ErbB2 requires integrin alpha5 for anoikis resistance via Src regulation of receptor activity in human mammary epithelial cells.

Keneshia K Haenssen, Sarah A Caldwell, Kristina S Shahriari, S Raelle Jackson, Kelly A Whelan, Andres J Klein-Szanto, Mauricio J Reginato

Abstract read
In one paragraph

Article in Journal of cell science, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
5.2field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 103 citations in OpenAlex.

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6 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

7 authors at 2 institutions in 1 country.

Keneshia K HaenssenDepartment of Biochemistry and Molecular Biology, 245 N 15 Street, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
Sarah A Caldwell
Kristina S Shahriari
S Raelle Jackson
Kelly A Whelan
Andres J Klein-Szanto
Mauricio J Reginato
Drexel University · USFox Chase Cancer Center · US

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
NCI NIH HHS P30 CA006927
6 · The paper itself

Abstract

ErbB2, a receptor tyrosine kinase highly expressed in many tumors, is known to inhibit apoptotic signals. Overexpression of ErbB2 causes anoikis resistance that contributes to luminal filling in three-dimensional mammary epithelial acinar structures in vitro. Given that integrins and growth factor receptors are highly interdependent for function, we examined the role of integrin subunits in ErbB2-mediated survival signaling. Here, we show that MCF-10A cells overexpressing ErbB2 upregulate integrin alpha5 via the MAP-kinase pathway in three-dimensional acini and found elevated integrin alpha5 levels associated with ErbB2 status in human breast cancer. Integrin alpha5 is required for ErbB2-mediated anoikis resistance and for optimal ErbB2 signaling to the Mek-Erk-Bim axis as depletion of integrin alpha5 reverses anoikis resistance and Bim inhibition. Integrin alpha5 is required for full activation of ErbB2 tyrosine phosphorylation on Y877 and ErbB2 phosphorylation is associated with increased activity of Src in the absence of adhesion. Indeed, we show that blocking elevated Src activity during cell detachment reverses ErbB2-mediated survival and Bim repression. Thus, integrin alpha5 serves as a key mediator of Src and ErbB2-survival signaling in low adhesion states, which are necessary to block the pro-anoikis mediator Bim, and we suggest that this pathway represents a potential novel therapeutic target in ErbB2-positive tumors.

Indexed as

AnoikisApoptosis Regulatory ProteinsBcl-2-Like Protein 11Breast NeoplasmsCell AdhesionCell SurvivalEnzyme ActivationEpithelial CellsErb-b2 Receptor Tyrosine KinasesExtracellular Signal-Regulated MAP KinasesFemaleGene Expression Regulation, NeoplasticHumansIntegrin alpha5Mammary Glands, HumanMAP Kinase Signaling SystemApoptosis Regulatory ProteinsBCL2L11 protein, humanBcl-2-Like Protein 11ERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesExtracellular Signal-Regulated MAP KinasesIntegrin alpha5Membrane ProteinsMitogen-Activated Protein Kinase KinasesProto-Oncogene Proteinssrc-Family Kinases

Identifiers

PMID20332114
PMCPMC3705932
OpenAlexW2152573992

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.