Evidence map›Paper›PMID 21996746›Full record

ArticleOncogene2012

Gab2 regulates the migratory behaviors and E-cadherin expression via activation of the PI3K pathway in ovarian cancer cells.

Y Wang, Q Sheng, M A Spillman, K Behbakht, H Gu

Open access · bronzeAbstract read
In one paragraph

Article in Oncogene, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

48 citing papers in PubMed, 76 citations in OpenAlex.

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  20. Gab2 mediates hepatocellular carcinogenesis by integrating multiple signaling pathways.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2017
    Article
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 3 institutions in 1 country.

Y WangDepartment of Pathology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
Q Sheng
M A Spillman
K Behbakht
H Gu
Dana-Farber Cancer Institute · USUniversity of Colorado Denver · USUniversity of Colorado Anschutz Medical Campus · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
Role of Gab2 in Mast Cell Function and OntogenyR01AI051612 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI GU, HAIHUA · 2002 to 2006
$1.7M
NCI NIH HHS P30 CA046934NIAID NIH HHS R01 AI051612NIAID NIH HHS R01-AI51612
6 · The paper itself

Abstract

Ovarian cancer, the most deadly gynecologic malignancy, is often diagnosed late and at the advanced stage when the cancer cells have already migrated and invaded into other tissues and organs. Better understanding of the mechanism of metastasis in ovarian cancer cells is essential to the design of effective therapy. In this study, we investigated the function of scaffolding adaptor protein Gab2 in ovarian cancer cells. Gab2 is found to be overexpressed in a subset of ovarian tumors and cancer cell lines. Gab2 expression mainly regulates the migratory behaviors of ovarian cancer cells. Overexpression of Gab2 promotes the migration and invasion, and downregulates E-cadherin expression in ovarian cancer cells with low-Gab2 expression. Conversely, knockdown of Gab2 expression inhibits the migration and invasion, and promotes E-cadherin expression in ovarian cancer cells with high-Gab2 expression. By expressing Gab2 wild-type and Gab2 mutants that are defective in activation of the PI3K and Shp2-Erk pathways, we find that Gab2 inhibits E-cadherin expression and enhances the expression of Zeb1, a transcription factor involved in epithelial-to-mesenchymal transition (EMT), and cell migration and invasion through the activation of the PI3K pathway. Knockdown of Zeb1 expression blocks Gab2-induced suppression of E-cadherin expression and increase in cell invasion. LY294002 and GDC-0941, inhibitors of PI3K, or Rapamycin, an inhibitor of PI3K downstream target mTOR, can reverse the effects of Gab2 on migration and invasion. Overall, our studies reveal that Gab2 overexpression, via activation of the PI3K-Zeb1 pathway, promotes characteristics of EMT in ovarian cancer cells.

Indexed as

Adaptor Proteins, Signal TransducingCadherinsCell Line, TumorCell MovementEnzyme InhibitorsEpithelial-Mesenchymal TransitionFemaleGene Expression Regulation, NeoplasticHomeodomain ProteinsHumansIndazolesMutant ProteinsOvarian NeoplasmsPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsSignal Transduction2-(1H-indazol-4-yl)-6-(4-methanesulfonylpiperazin-1-ylmethyl)-4-morpholin-4-ylthieno(3,2-d)pyrimidineAdaptor Proteins, Signal TransducingCadherinsEnzyme InhibitorsGAB2 protein, humanHomeodomain ProteinsIndazolesMutant ProteinsPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsSulfonamidesTranscription FactorsZEB1 protein, humanZinc Finger E-box-Binding Homeobox 1

Identifiers

PMID21996746
PMCPMC3262088
OpenAlexW2035871081

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.