Evidence map›Paper›PMID 26882569›Full record

ArticleOncotarget2016

A synthetic-lethality RNAi screen reveals an ERK-mTOR co-targeting pro-apoptotic switch in PIK3CA+ oral cancers.

Kosuke Yamaguchi, Ramiro Iglesias-Bartolomé, Zhiyong Wang, Juan Luis Callejas-Valera, Panomwat Amornphimoltham, Alfredo A Molinolo, Ezra E Cohen, Joseph A Califano, Scott M Lippman, Ji Luo and 1 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Inhibition of mTOR Signaling and Clinical Activity of Rapamycin in Head and Neck Cancer in a Window of Opportunity Trial.Clinical cancer research : an official journal of the American Association for Cancer Research · 2019
    Trial
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  12. PDK1 MediatesClinical cancer research : an official journal of the American Association for Cancer Research · 2019
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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

11 authors at 2 institutions in 1 country.

Kosuke YamaguchiMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Ramiro Iglesias-BartoloméLaboratory of Skin Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.
Zhiyong WangMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Juan Luis Callejas-ValeraMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Panomwat AmornphimolthamMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Alfredo A MolinoloMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Ezra E CohenMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Joseph A CalifanoMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Scott M LippmanMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
Ji LuoLaboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute (CCR-NCI), National Institutes of Health, Bethesda, MD, USA.
J Silvio GutkindMoores Cancer Center, University of California San Diego, San Diego, CA, USA.
University of California, San Diego · USNational Institutes of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

mTOR inhibition has emerged as a promising strategy for head and neck squamous cell carcinomas (HNSCC) treatment. However, most targeted therapies ultimately develop resistance due to the activation of adaptive survival signaling mechanisms limiting the activity of targeted agents. Thus, co-targeting key adaptive mechanisms may enable more effective cancer cell killing. Here, we performed a synthetic lethality screen using shRNA libraries to identify druggable candidates for combinatorial signal inhibition. We found that the ERK pathway was the most highly represented. Combination of rapamycin with trametinib, a MEK1/2 inhibitor, demonstrated strong synergism in HNSCC-derived cells in vitro and in vivo, including HNSCC cells expressing the HRAS and PIK3CA oncogenes. Interestingly, cleaved caspase-3 was potently induced by the combination therapy in PIK3CA+ cells in vitro and tumor xenografts. Moreover, ectopic expression of PIK3CA mutations into PIK3CA- HNSCC cells sensitized them to the pro-apoptotic activity of the combination therapy. These findings indicate that co-targeting the mTOR/ERK pathways may provide a suitable precision strategy for HNSCC treatment. Moreover, PIK3CA+ HNSCC are particularly prone to undergo apoptosis after mTOR and ERK inhibition, thereby providing a potential biomarker of predictive value for the selection of patients that may benefit from this combination therapy.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsApoptosisCell Line, TumorClass I Phosphatidylinositol 3-KinasesDrug SynergismFemaleHeterograftsHumansMAP Kinase Signaling SystemMiceMice, NudeMolecular Targeted TherapyMouth NeoplasmsPyridonesPyrimidinonesClass I Phosphatidylinositol 3-KinasesMTOR protein, humanPIK3CA protein, humanPyridonesPyrimidinonesSirolimusTOR Serine-Threonine Kinasestrametinibco-targeting therapyrapamycinshRNA librarysynthetic lethality screentrametinib

Identifiers

PMID26882569
PMCPMC4905432
OpenAlexW2296506488

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.