Evidence map›Paper›PMID 25637283›Full record

ArticleMolecular oncology2015

Activation of protein phosphatase 2A tumor suppressor as potential treatment of pancreatic cancer.

Wenwen Chien, Qiao-Yang Sun, Kian Leong Lee, Ling-Wen Ding, Peer Wuensche, Lucia A Torres-Fernandez, Siew Zhuan Tan, Itay Tokatly, Norazean Zaiden, Lorenz Poellinger and 4 more

Expression of concernOpen access · bronzeAbstract read
In one paragraph

Article in Molecular oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
3.0field-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

46 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
  2. Drug repositioning: examining antipsychotic drugs and their anticancer effects.Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences · 2025
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  15. Isolation of Primary Hepatocytes for Testing Tumor Penetrating Peptides.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 3 countries.

Wenwen ChienCancer Science Institute of Singapore, National University of Singapore, Singapore. Electronic address: csicw@nus.edu.sg.
Qiao-Yang SunCancer Science Institute of Singapore, National University of Singapore, Singapore.
Kian Leong LeeCancer Science Institute of Singapore, National University of Singapore, Singapore.
Ling-Wen DingCancer Science Institute of Singapore, National University of Singapore, Singapore.
Peer WuenscheCancer Science Institute of Singapore, National University of Singapore, Singapore.
Lucia A Torres-FernandezCancer Science Institute of Singapore, National University of Singapore, Singapore.
Siew Zhuan TanCancer Science Institute of Singapore, National University of Singapore, Singapore.
Itay TokatlyCancer Research Center, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer 52621, Israel.
Norazean ZaidenCancer Science Institute of Singapore, National University of Singapore, Singapore.
Lorenz PoellingerCancer Science Institute of Singapore, National University of Singapore, Singapore.
Seiichi MoriCancer Science Institute of Singapore, National University of Singapore, Singapore.
Henry YangCancer Science Institute of Singapore, National University of Singapore, Singapore.
Jeffrey W TynerDepartment of Cell & Developmental Biology, Oregon Health & Science University, Portland, OR 97239, USA.
H Phillip KoefflerCancer Science Institute of Singapore, National University of Singapore, Singapore; Cedars-Sinai Medical Center, UCLA School of Medicine, Los Angeles, CA, USA; National University Cancer Institute, Singapore.
National University Cancer Institute, Singapore · SGNational University of Singapore · SGEdmond and Lily Safra Children's Hospital · ILOregon Health & Science University · US

Funding

REGULATION OF HEMATOPOIETIC CYTOKINESR01CA026038 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KOEFFLER, HAROLD PHILLIP · 1985 to 2013
$4.7M
NCI NIH HHS R01 CA026038
6 · The paper itself

Abstract

We utilized three tiers of screening to identify novel therapeutic agents for pancreatic cancers. First, we analyzed 14 pancreatic cancer cell lines against a panel of 66 small-molecule kinase inhibitors and dasatinib was the most potent. Second, we performed RNA expression analysis on 3 dasatinib-resistant and 3 dasatinib-sensitive pancreatic cancer cell lines to profile their gene expression. Third, gene profiling data was integrated with the Connectivity Map database to search for potential drugs. Thioridazine was one of the top ranking small molecules with highly negative enrichment. Thioridazine and its family members of phenothiazine including penfluridol caused pancreatic cancer cell death and affected protein expression levels of molecules involved in cell cycle regulation, apoptosis, and multiple kinase activities. This family of drugs causes activation of protein phosphatase 2 (PP2A). The drug FTY-720 (activator of PP2A) induced apoptosis of pancreatic cancer cells. Silencing catalytic unit of PP2A rendered pancreatic cancer cells resistant to penfluridol. Our observations suggest potential therapeutic use of penfluridol or similar agent associated with activation of PP2A in pancreatic cancers.

Indexed as

Antineoplastic AgentsApoptosisCell CycleCell Line, TumorCell ProliferationComputer SimulationDasatinibDrug Evaluation, PreclinicalEnzyme ActivationGene Expression Regulation, NeoplasticHumansInhibitory Concentration 50Pancreatic NeoplasmsPenfluridolPhenothiazinesProtein Kinase InhibitorsAntineoplastic AgentsDasatinibPenfluridolphenothiazinePhenothiazinesProtein Kinase InhibitorsProtein Phosphatase 2Tumor Suppressor ProteinsDasatinibFTY-720Pancreatic cancerPhenothiazinePP2A

Identifiers

PMID25637283
PMCPMC4387089
OpenAlexW2033599624

What OpenQuestion 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 OpenQuestion graph.