Evidence map›Paper›PMID 19330798›Full record

ArticleJournal of cellular biochemistry2009

Expression of a phosphorylated p130(Cas) substrate domain attenuates the phosphatidylinositol 3-kinase/Akt survival pathway in tamoxifen resistant breast cancer cells.

Shefali Soni, Bor-Tyh Lin, Avery August, Robert I Nicholson, Kathrin H Kirsch

Open access · greenAbstract read
In one paragraph

Article in Journal of cellular biochemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. A truncated phosphorylated p130Cas substrate domain is sufficient to drive breast cancer growth and metastasis formation in vivo.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
  3. Article
  4. Article
  5. Cas proteins: dodgy scaffolding in breast cancer.Breast cancer research : BCR · 2014
    Review
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  7. Article
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  15. CAS proteins in normal and pathological cell growth control.Cellular and molecular life sciences : CMLS · 2010
    Review
  16. Review
  17. 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 2 countries.

Shefali SoniDepartment of Biochemistry, Boston University School of Medicine, Massachusetts 02118, USA.
Bor-Tyh Lin
Avery August
Robert I Nicholson
Kathrin H Kirsch
Boston University · USCardiff University · GBPennsylvania State University · US

Funding

Functional role of p130Cas/BCAR1 in breast cancerR01CA106468 · NCI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI KIRSCH, KATHRIN H · 2005 to 2009
$1.4M
NCI NIH HHS CA106468NCI NIH HHS R01 CA106468
6 · The paper itself

Abstract

Elevated expression of p130(Cas)/BCAR1 (breast cancer anti estrogen resistance 1) in human breast tumors is a marker of poor prognosis and poor overall survival. Specifically, p130(Cas) signaling has been associated with antiestrogen resistance, for which the mechanism is currently unknown. TAM-R cells, which were established by long-term exposure of estrogen (E(2))-dependent MCF-7 cells to tamoxifen, displayed elevated levels of total and activated p130(Cas). Here we have investigated the effects of p130(Cas) inhibition on growth factor signaling in tamoxifen resistance. To inhibit p130(Cas), a phosphorylated substrate domain of p130(Cas), that acts as a dominant-negative (DN) p130(Cas) molecule by blocking signal transduction downstream of the p130(Cas) substrate domain, as well as knockdown by siRNA was employed. Interference with p130(Cas) signaling/expression induced morphological changes, which were consistent with a more epithelial-like phenotype. The phenotypic reversion was accompanied by reduced migration, attenuation of the ERK and phosphatidylinositol 3-kinase/Akt pathways, and induction of apoptosis. Apoptosis was accompanied by downregulation of the expression of the anti-apoptotic protein Bcl-2. Importantly, these changes re-sensitized TAM-R cells to tamoxifen treatment by inducing cell death. Therefore, our findings suggest that targeting the product of the BCAR1 gene by a peptide which mimics the phosphorylated substrate domain may provide a new molecular avenue for treatment of antiestrogen resistant breast cancers.

Indexed as

ApoptosisBlotting, WesternBreast NeoplasmsCell Line, TumorCrk-Associated Substrate ProteinDrug Resistance, NeoplasmFemaleFlow CytometryHumansPhosphatidylinositol 3-KinasesPhosphorylationProto-Oncogene Proteins c-aktRNA, Small InterferingSelective Estrogen Receptor ModulatorsSignal TransductionTamoxifenBCAR1 protein, humanCrk-Associated Substrate ProteinPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktRNA, Small InterferingSelective Estrogen Receptor ModulatorsTamoxifen

Identifiers

PMID19330798
PMCPMC2743319
OpenAlexW1965138947

What OpenQuestion holds

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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 OpenQuestion graph.