Evidence map›Paper›PMID 22869556›Full record

ArticleMolecular cancer therapeutics2012

Cdk4/6 inhibition induces epithelial-mesenchymal transition and enhances invasiveness in pancreatic cancer cells.

Fang Liu, Murray Korc

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cancer therapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
4.5field-weighted citation impact, top 4% 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

80 citing papers in PubMed, 127 citations in OpenAlex.

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  18. CDK4/6 inhibitor resistance mechanisms and treatment strategies (Review).International journal of molecular medicine · 2022
    Review
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20 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

2 authors at 2 institutions in 1 country.

Fang LiuIndiana University School of Medicine, 980 W. Walnut Street, Indianapolis, IN 46202, USA.
Murray Korc
Indiana University Health · USIndiana University – Purdue University Indianapolis · US

Funding

Novel aspects of Epithelial-Mesenchymal Transition(EMT)in pancreatic cancerR01CA075059 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI KORC, MURRAY · 1997 to 2018
$4.3M
Dysregulation of TGF Beta Action Pancreatic CancerR37CA075059 · NCI · INDIANA UNIVERSITY INDIANAPOLIS · PI KORC, MURRAY · 2008 to 2012
$2.2M
NCI NIH HHS CA-R37-075059NCI NIH HHS R01 CA075059NCI NIH HHS R37 CA075059
6 · The paper itself

Abstract

Aberrant activation of Cyclin D-Cdk4/6 signaling pathway is commonly found in pancreatic ductal adenocarcinoma (PDAC). Here, we show that PD-0332991, a highly specific inhibitor for Cdk4 and Cdk6, exerted growth inhibitory effects on three human PDAC cell lines. Microarray analysis revealed that PD-0332991 downregulated cell-cycle-related genes, but upregulated genes implicated in extracellular matrix (ECM) remodeling and pancreatic cancer cell invasion and metastasis. Moreover, PD-0332991 enhanced invasion in TGF-β-responsive PDAC cell lines that harbor a wild-type SMAD4 gene (COLO-357, PANC-1), but not in TGF-β-resistant AsPC-1 cells that harbor a mutated SMAD4. PD-0332991 also induced epithelial-mesenchymal transition (EMT) in COLO-357 and PANC-1, but not in AsPC-1 cells. Inhibition of CDK4/6 using shRNA mimicked the effects of PD-0332991 on EMT induction. Furthermore, PD-0332991 increased Smad transcriptional activity in luciferase readout assays and activated TGF-β signaling. SB-505124, an inhibitor of the type-I TGF-β receptor (TβRI) kinase, completely blocked EMT induction by PD-0332991. When combined with PD-0332991, SB-505124 inhibited the growth of COLO-357 and PANC-1 cells. Taken together, these data suggest that anti-Cdk4/6 therapy could induce EMT and enhance pancreatic cancer cell invasion by activating Smad-dependent TGF-β signaling, and that combining PD-0332991 and SB-505124 may represent a novel therapeutic strategy in PDAC.

Indexed as

Epithelial-Mesenchymal TransitionBenzodioxolesCell Line, TumorCell ProliferationCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6Drug Screening Assays, AntitumorDrug SynergismGene Expression Regulation, NeoplasticGene Knockdown TechniquesHumansImidazolesNeoplasm InvasivenessNeoplasm MetastasisPancreatic NeoplasmsPiperazines2-(5-benzo(1,3)dioxol-5-yl-2-tert-butyl-3H-imidazol-4-yl)-6-methylpyridine hydrochlorideBenzodioxolesCyclin-Dependent Kinase 4Cyclin-Dependent Kinase 6ImidazolespalbociclibPiperazinesPyridinesRNA, Small InterferingSmad ProteinsTransforming Growth Factor beta

Identifiers

PMID22869556
PMCPMC3752412
OpenAlexW2165644722

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.