Evidence map›Paper›PMID 22322295›Full record

ArticleThe American journal of pathology2012

Ack1 tyrosine kinase activation correlates with pancreatic cancer progression.

Kiran Mahajan, Domenico Coppola, Y Ann Chen, Weiwei Zhu, Harshani R Lawrence, Nicholas J Lawrence, Nupam P Mahajan

Abstract read
In one paragraph

Article in The American journal of pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
–field-weighted citation impact
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

39 citing papers in PubMed.

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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

7 authors.

Kiran MahajanDepartment of Drug Discovery, Moffitt Cancer Center, Tampa, Florida 33612, USA.
Domenico Coppola
Y Ann Chen
Weiwei Zhu
Harshani R Lawrence
Nicholas J Lawrence
Nupam P Mahajan

Funding

TRANSLATIONAL RESEARCHP30CA076292 · NCI · UNIVERSITY OF SOUTH FLORIDA · PI KENNETH Lynn WRIGHT · 1998 to 2026
$93.5M
Ack1: A Critical Regulator of Hormone-Refractory Prostate CancerR01CA135328 · NCI · H. LEE MOFFITT CANCER CTR & RES INST · PI MAHAJAN, NUPAM P · 2010 to 2014
$1.6M
NCI NIH HHS 1R01CA135328NCI NIH HHS P30 CA076292NCI NIH HHS R01 CA135328
6 · The paper itself

Abstract

Pancreatic cancer is a significant cause of cancer mortality worldwide as the disease has advanced significantly in patients before symptoms are evident. The signal transduction pathways that promote this rapid progression are not well understood. Ack1 or TNK2, an ubiquitously expressed oncogenic non-receptor tyrosine kinase, integrates signals from ligand-activated receptor tyrosine kinases to modulate intracellular signaling cascades. In the present study, we investigated the Ack1 activation profile in a pancreatic cancer tumor microarray, and observed that expression levels of activated Ack1 and pTyr284-Ack1 positively correlated with the severity of disease progression and inversely correlated with the survival of patients with pancreatic cancer. To explore the mechanisms by which Ack1 promotes tumor progression, we investigated the role of AKT/PKB, an oncogene and Ack1-interacting protein. Ack1 activates AKT directly in pancreatic and other cancer cell lines by phosphorylating AKT at Tyr176 to promote cell survival. In addition, the Ack1 inhibitor AIM-100 not only inhibited Ack1 activation but also suppressed AKT tyrosine phosphorylation, leading to cell cycle arrest in the G1 phase. This effect resulted in a significant decrease in the proliferation of pancreatic cancer cells and induction of apoptosis. Collectively, our data indicate that activated Ack1 could be a prognostic marker for ascertaining early or advanced pancreatic cancer. Thus, Ack1 inhibitors hold promise for therapeutic intervention to inhibit pancreatic tumor growth.

Indexed as

ApoptosisBiomarkers, TumorCell CycleCell ProliferationDisease ProgressionDose-Response Relationship, DrugDrug Evaluation, PreclinicalEnzyme ActivationHumansKaplan-Meier EstimatePancreatic NeoplasmsPhosphorylationProtein-Tyrosine KinasesProto-Oncogene Proteins c-aktSignal TransductionTumor Cells, CulturedBiomarkers, TumorProtein-Tyrosine KinasesProto-Oncogene Proteins c-aktTNK2 protein, human

Identifiers

PMID22322295
PMCPMC3349895

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Registered trials

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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.