Evidence map›Paper›PMID 22957061›Full record

ArticlePloS one2012

Reciprocal regulation of annexin A2 and EGFR with Her-2 in Her-2 negative and herceptin-resistant breast cancer.

Praveenkumar K Shetty, Sanjay I Thamake, Swati Biswas, Sonny L Johansson, Jamboor K Vishwanatha

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

42 citing papers in PubMed, 67 citations in OpenAlex.

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  18. The miR155HG/miR-185/ANXA2 loop contributes to glioblastoma growth and progression.Journal of experimental & clinical cancer research : CR · 2019
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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

5 authors at 4 institutions in 2 countries.

Praveenkumar K ShettyDepartment of Biochemistry, SDM College of Medical Sciences & Hospital, Dharwad, India.
Sanjay I Thamake
Swati Biswas
Sonny L Johansson
Jamboor K Vishwanatha
SDM College of Medical Science and Hospital · INThe University of Texas at Dallas · USUniversity of Nebraska Medical Center · USUniversity of North Texas · US

Funding

Visceral Fat & Lipid & Inflammatory Risk factors: Role of EthnicityP20MD001633 · NIMHD · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI GONZALEZ, ADELA · 2005 to 2009
$7.1M
Texas Center for Minority Health, Education, Research and OutreachU54MD006882 · NIMHD · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI JONES, HARLAN PIERRE, VISHWANATHA, JAMBOOR K. · 2017 to 2022
$6.0M
Triple Negative Breast Cancer: Novel Biomarkers and Therapeutic StrategiesP20MD006882 · NIMHD · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI GHORPADE, ANUJA · 2012 to 2016
$5.8M
NIMHD NIH HHS MD001633NIMHD NIH HHS MD006882NIMHD NIH HHS P20 MD001633NIMHD NIH HHS P20 MD006882NIMHD NIH HHS U54 MD006882
6 · The paper itself

Abstract

Alternative survival pathways are commonly seen to be upregulated upon inhibition of receptor tyrosine kinases (RTK), including Her-2. It is established that treatment with Herceptin leads to selective overexpression and activation of epidermal growth factor receptor (EGFR) and Src which further contributes to oncogenesis in Herceptin resistant and triple negative breast cancer (TNBC) patients. Here, we show a co-regulated upregulation in the expression of Annexin A2 (AnxA2), a known substrate of Src and one of the regulators of EGFR receptor endocytosis, in Herceptin resistant and Her-2 negative breast cancer. Immunohistochemical expression analysis revealed a reciprocal regulation between Her-2 and AnxA2 in breast cancer clinical samples as well as in cell lines as confirmed by protein and RNA analysis. The siRNA and Herceptin mediated downregulation/inhibition of Her-2 in Her-2 amplified cells induced AnxA2 expression and membrane translocation. In this study we report a possible involvement of AnxA2 in maintaining constitutively activated EGFR downstream signaling intermediates and hence in cell proliferation, migration and viability. This effect was consistent in Herceptin resistant JIMT-1 cells as well as in Her-2 negative breast cancer. The siRNA mediated AnxA2 downregulation leads to increased apoptosis, decreased cell viability and migration. Our studies further indicate the role of AnxA2 in EGFR-Src membrane bound signaling complex and ligand induced activation of downstream signaling pathways. Targeting this AnxA2 dependent positive regulation of EGFR signaling cascade may be of therapeutic value in Her-2 negative breast cancer.

Indexed as

Annexin A2Antibodies, Monoclonal, HumanizedApoptosisBreast NeoplasmsCell Line, TumorCell MovementCell SurvivalCollagenDrug CombinationsDrug Resistance, NeoplasmErb-b2 Receptor Tyrosine KinasesErbB ReceptorsFemaleHumansImmunohistochemistryLamininAnnexin A2Antibodies, Monoclonal, HumanizedCollagenDrug CombinationsERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesErbB ReceptorsLamininLigandsmatrigelProteoglycanssrc-Family KinasesTrastuzumab

Identifiers

PMID22957061
PMCPMC3434131
OpenAlexW2116980560

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.