Evidence map›Paper›PMID 21159657›Full record

ArticleCancer research2010

Identification of PP2A complexes and pathways involved in cell transformation.

Anna A Sablina, Melissa Hector, Nathalie Colpaert, William C Hahn

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed
7.1field-weighted citation impact, top 2% 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

120 citing papers in PubMed, 195 citations in OpenAlex.

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60 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

4 authors at 3 institutions in 1 country.

Anna A SablinaDepartment of Medical Oncology, Dana-Farber Cancer Institute, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA. Anna.Sablina@cme.vib-kuleuven.be
Melissa Hector
Nathalie Colpaert
William C Hahn
Dana-Farber Cancer Institute · USBrigham and Women's Hospital · USCenter for Human Genetics · US

Funding

VIRAL ONCOPROTEIN PERTURBATION OF RB/E2F PATHWAYP01CA050661 · NCI · DANA-FARBER CANCER INSTITUTE · PI LIVINGSTON, DAVID MORSE · 1989 to 2013
$35.8M
The role of specific PP2A complexes in human cell transformationK99CA125974 · NCI · DANA-FARBER CANCER INST · PI SABLINA, ANNA A · 2008 to 2008
$103k
NCI NIH HHS 1K99 CA125974-01A2NCI NIH HHS K99 CA125974NCI NIH HHS P01 CA050661
6 · The paper itself

Abstract

The simian virus 40 small t (SV40ST) oncoprotein interacts with protein phosphatase 2A (PP2A), an abundantly expressed family of serine-threonine phosphatases. This interaction is essential for the transformation of human cells by SV40, and several PP2A subunits have been implicated as tumor suppressor genes. However, the pathways controlled by specific PP2A complexes involved in cell transformation remain incompletely understood. Using a comprehensive loss-of-function approach, we identified 4 PP2A regulatory subunits [B56α, B56γ, PR72/PR130, and PTPA (protein phosphatase 2A activator)], which when suppressed replaced the expression of SV40ST in human cell transformation. We found that manipulation of complexes containing PP2A B56α, B56γ, and PR72/PR130 activates the pathways regulated by c-Myc, Wnt, and PI3K (phosphoinositide 3-kinase)/Akt in a manner that depends on their specific phosphatase activity. In contrast, suppression of PTPA disrupts the assembly of PP2A heterotrimeric complexes, which leads to the activation of these same oncogenic pathways. These observations delineate the PP2A family members and pathways perturbed by SV40ST during human cell transformation.

Indexed as

beta CateninCell Transformation, NeoplasticHumansPhosphatidylinositol 3-KinasesPhosphoprotein PhosphatasesProtein Phosphatase 2ProteinsProtein SubunitsProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-mycRNA, Small InterferingWnt Proteinsbeta CateninCTNNB1 protein, humanMYC protein, humanPhosphatidylinositol 3-KinasesPhosphoprotein PhosphatasesProtein Phosphatase 2ProteinsProtein SubunitsProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-mycPTPA protein, humanRNA, Small InterferingWnt Proteins

Identifiers

PMID21159657
PMCPMC3056544
OpenAlexW2149754768

What OpenQuestion holds

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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.