Evidence map›Paper›PMID 21536687›Full record

ArticleMolecular cancer research : MCR2011

High-throughput RNAi screening identifies a role for TNK1 in growth and survival of pancreatic cancer cells.

Meredith C Henderson, Irma M Gonzales, Shilpi Arora, Ashish Choudhary, Jeffrey M Trent, Daniel D Von Hoff, Spyro Mousses, David O Azorsa

Abstract read
In one paragraph

Article in Molecular cancer research : MCR, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

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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

8 authors at 1 institution in 1 country.

Meredith C HendersonClinical Translational Research Division, Translational Genomics Research Institute, Scottsdale, AZ 85259, USA.
Irma M Gonzales
Shilpi Arora
Ashish Choudhary
Jeffrey M Trent
Daniel D Von Hoff
Spyro Mousses
David O Azorsa
Translational Genomics Research Institute · US

Funding

Validation of Amplified Genes in Pancreatic CancerP01CA109552 · NCI · TRANSLATIONAL GENOMICS RESEARCH INST · PI VON HOFF, DANIEL D · 2005 to 2009
$15.2M
NCI NIH HHS P01 CA109552
6 · The paper itself

Abstract

To identify novel targets in pancreatic cancer cells, we used high-throughput RNAi (HT-RNAi) to select genes that, when silenced, would decrease viability of pancreatic cancer cells. The HT-RNAi screen involved reverse transfecting the pancreatic cancer cell line BxPC3 with a siRNA library targeting 572 kinases. From replicate screens, approximately 32 kinases were designated as hits, of which 22 kinase targets were selected for confirmation and validation. One kinase identified as a hit from this screen was tyrosine kinase nonreceptor 1 (TNK1), a kinase previously identified as having tumor suppressor-like properties in embryonic stem cells. Silencing of TNK1 with siRNA showed reduced proliferation in a panel of pancreatic cancer cell lines. Furthermore, we showed that silencing of TNK1 led to increased apoptosis through a caspase-dependent pathway and that targeting TNK1 with siRNA can synergize with gemcitabine treatment. Despite previous reports that TNK1 affects Ras and NF-κB signaling, we did not find similar correlations with these pathways in pancreatic cancer cells. Our results suggest that TNK1 in pancreatic cancer cells does not possess the same tumor suppressor properties seen in embryonic cells but seems to be involved in growth and survival. The application of functional genomics by using HT-RNAi screens has allowed us to identify TNK1 as a growth-associated kinase in pancreatic cancer cells.

Indexed as

ApoptosisCell Line, TumorCell ProliferationDeoxycytidineDose-Response Relationship, DrugFetal ProteinsGemcitabineGene SilencingHigh-Throughput Screening AssaysHumansPancreatic NeoplasmsProtein-Tyrosine KinasesRNA, Small InterferingDeoxycytidineFetal ProteinsGemcitabineProtein-Tyrosine KinasesRNA, Small InterferingTNK1 protein, human

Identifiers

PMID21536687
PMCPMC3137903
OpenAlexW2119103149

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.