Evidence map›Paper›PMID 22547687›Full record

ArticleMolecular & cellular proteomics : MCP2012

Phosphoproteomic analysis of leukemia cells under basal and drug-treated conditions identifies markers of kinase pathway activation and mechanisms of resistance.

Maria P Alcolea, Pedro Casado, Juan-Carlos Rodríguez-Prados, Bart Vanhaesebroeck, Pedro R Cutillas

Open access · hybridAbstract read
In one paragraph

Article in Molecular & cellular proteomics : MCP, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
3.5field-weighted citation impact, top 6% 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, 70 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

5 authors at 1 institution in 1 country.

Maria P AlcoleaAnalytical Signalling Group, Centre for Cell Signalling, Barts Cancer Institute, Queen Mary University of London, Barts and the London School of Medicine and Dentistry, London EC1M 6BQ, United Kingdom.
Pedro Casado
Juan-Carlos Rodríguez-Prados
Bart Vanhaesebroeck
Pedro R Cutillas
Queen Mary University of London · GB

Funding

Biotechnology and Biological Sciences Research Council BB/G015023/1Medical Research Council G0800914
6 · The paper itself

Abstract

Protein kinase signaling is fundamental to cell homeostasis and is deregulated in all cancers but varies between patients. Understanding the mechanisms underlying this heterogeneity is critical for personalized targeted therapies. Here, we used a recently established LC-MS/MS platform to profile protein phosphorylation in acute myeloid leukemia cell lines with different sensitivities to kinase inhibitors. The compounds used in this study were originally developed to target Janus kinase, phosphatidylinositol 3-kinase, and MEK. After further validation of the technique, we identified several phosphorylation sites that were inhibited by these compounds but whose intensities did not always correlate with growth inhibition sensitivity. In contrast, several hundred phosphorylation sites that correlated with sensitivity/resistance were not in general inhibited by the compounds. These results indicate that markers of pathway activity may not always be reliable indicators of sensitivity of cancer cells to inhibitors that target such pathways, because the activity of parallel kinases can contribute to resistance. By mining our data we identified protein kinase C isoforms as one of such parallel pathways being more active in resistant cells. Consistent with the view that several parallel kinase pathways were contributing to resistance, inhibitors that target protein kinase C, MEK, and Janus kinase potentiated each other in arresting the proliferation of multidrug-resistant cells. Untargeted/unbiased approaches, such as the one described here, to quantify the activity of the intended target kinase pathway in concert with the activities of parallel kinase pathways will be invaluable to personalize therapies based on kinase inhibitors.

Indexed as

Acute DiseaseAnimalsBiomarkers, TumorBlotting, WesternCell Line, TumorCell ProliferationChromatography, LiquidDrug Resistance, NeoplasmHumansJanus KinasesLeukemia, MyeloidMiceMitogen-Activated Protein Kinase KinasesNIH 3T3 CellsPhosphopeptidesPhosphoproteinsBiomarkers, TumorJanus KinasesMitogen-Activated Protein Kinase KinasesPhosphopeptidesPhosphoproteinsProtein Kinase CProtein Kinase InhibitorsProtein Kinases

Identifiers

PMID22547687
PMCPMC3412974
OpenAlexW2145109145

What OpenQuestion holds

Textmetadata
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.