Evidence map›Paper›PMID 25071014›Full record

ArticleOncotarget2014

AKT regulates NPM dependent ARF localization and p53mut stability in tumors.

Garth Hamilton, Aswin G Abraham, Jennifer Morton, Oliver Sampson, Dafni E Pefani, Svetlana Khoronenkova, Anna Grawenda, Angelos Papaspyropoulos, Nigel Jamieson, Colin McKay and 3 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
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  3. Molecular Imaging of p53 in Mouse Models of Cancer Using a Radiolabeled Antibody TAT Conjugate with SPECT.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2024
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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

13 authors at 4 institutions in 1 country.

Garth HamiltonCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK; These authors contributed equally to this work.
Aswin G AbrahamCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK; These authors contributed equally to this work.
Jennifer MortonBeatson Institute for Cancer Research, Garscube Estate, Switchback Road, Glasgow, UK.
Oliver SampsonCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
Dafni E PefaniCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
Svetlana KhoronenkovaCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
Anna GrawendaCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
Angelos PapaspyropoulosCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
Nigel JamiesonWest of Scotland Pancreatic Unit and University Department of Surgery, Glasgow Royal Infirmary, Alexandra Parade. Glasgow.
Colin McKayWest of Scotland Pancreatic Unit and University Department of Surgery, Glasgow Royal Infirmary, Alexandra Parade. Glasgow.
Owen SansomBeatson Institute for Cancer Research, Garscube Estate, Switchback Road, Glasgow, UK.
Grigory L DianovCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
Eric O'NeillCancer Research UK/MRC Oxford Institute, Department of Oncology, University of Oxford, Old Road Campus, Roosevelt Drive, UK.
University of Oxford · GBCancer Research UK · GBCancer Research UK Scotland Institute · GBGlasgow Royal Infirmary · GB

Funding

Cancer Research UK 11650Cancer Research UK 12481Cancer Research UK 19277Medical Research Council MC_PC_12002
6 · The paper itself

Abstract

Nucleophosmin (NPM) is known to regulate ARF subcellular localization and MDM2 activity in response to oncogenic stress, though the precise mechanism has remained elusive. Here we describe how NPM and ARF associate in the nucleoplasm to form a MDM2 inhibitory complex. We find that oligomerization of NPM drives nucleolar accumulation of ARF. Moreover, the formation of NPM and ARF oligomers antagonizes MDM2 association with the inhibitory complex, leading to activation of MDM2 E3-ligase activity and targeting of p53. We find that AKT phosphorylation of NPM-Ser48 prevents oligomerization that results in nucleoplasmic localization of ARF, constitutive MDM2 inhibition and stabilization of p53. We also show that ARF promotes p53 mutant stability in tumors and suppresses p73 mediated p21 expression and senescence. We demonstrate that AKT and PI3K inhibitors may be effective in treatment of therapeutically resistant tumors with elevated AKT and carrying gain of function mutations in p53. Our results show that the clinical candidate AKT inhibitor MK-2206 promotes ARF nucleolar localization, reduced p53(mut) stability and increased sensitivity to ionizing radiation in a xenograft model of pancreatic cancer. Analysis of human tumors indicates that phospho-S48-NPM may be a useful biomarker for monitoring AKT activity and in vivo efficacy of AKT inhibitor treatment. Critically, we propose that combination therapy involving PI3K-AKT inhibitors would benefit from a patient stratification rationale based on ARF and p53(mut) status.

Indexed as

AnimalsFemaleHumansMiceMice, Inbred BALB CMice, NudeMutationNuclear ProteinsNucleophosminOncogene Protein v-aktPancreatic NeoplasmsPhosphatidylinositol 3-KinasesPhosphorylationProto-Oncogene Proteins c-mdm2TransfectionTumor Suppressor Protein p14ARFMDM2 protein, humanNPM1 protein, humanNuclear ProteinsNucleophosminOncogene Protein v-aktPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-mdm2Tumor Suppressor Protein p14ARFTumor Suppressor Protein p53

Identifiers

PMID25071014
PMCPMC4171619
OpenAlexW2110538146

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.