Evidence map›Paper›PMID 22355357›Full record

ArticlePloS one2012

Multi-level targeting of the phosphatidylinositol-3-kinase pathway in non-small cell lung cancer cells.

Christopher R Zito, Lucia B Jilaveanu, Valsamo Anagnostou, David Rimm, Gerold Bepler, Sauveur-Michel Maira, Wolfgang Hackl, Robert Camp, Harriet M Kluger, Herta H Chao

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 58 citations in OpenAlex.

  1. Safety and Efficacy of Buparlisib (BKM120) in Patients with PI3K Pathway-Activated Non-Small Cell Lung Cancer: Results from the Phase II BASALT-1 Study.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2015
    Trial
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. The comparison between dual inhibition of mTOR with MAPK and PI3K signaling pathways in KRAS mutant NSCLC cell lines.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

10 authors at 5 institutions in 1 country.

Christopher R ZitoYale University School of Medicine & Yale Comprehensive Cancer, New Haven, Connecticut, United States of America.
Lucia B Jilaveanu
Valsamo Anagnostou
David Rimm
Gerold Bepler
Sauveur-Michel Maira
Wolfgang Hackl
Robert Camp
Harriet M Kluger
Herta H Chao
Yale University · USNovartis (United States) · USYale Cancer Center · USMichigan United · USVA Connecticut Healthcare System · US

Funding

Yale SPORE in Skin CancerP50CA121974 · NCI · YALE UNIVERSITY · PI MARCUS W BOSENBERG, Harriet M. Kluger · 2006 to 2026
$43.9M
NCI NIH HHS 1 P50 CA121974NCI NIH HHS P50 CA121974
6 · The paper itself

Abstract

introductionWe assessed expression of p85 and p110α PI3K subunits in non-small cell lung cancer (NSCLC) specimens and the association with mTOR expression, and studied effects of targeting the PI3K/AKT/mTOR pathway in NSCLC cell lines.

methodsUsing Automated Quantitative Analysis we quantified expression of PI3K subunits in two cohorts of 190 and 168 NSCLC specimens and correlated it with mTOR expression. We studied effects of two PI3K inhibitors, LY294002 and NVP-BKM120, alone and in combination with rapamycin in 6 NSCLC cell lines. We assessed activity of a dual PI3K/mTOR inhibitor, NVP-BEZ235 alone and with an EGFR inhibitor.

resultsp85 and p110α tend to be co-expressed (p<0.001); p85 expression was higher in adenocarcinomas than squamous cell carcinomas. High p85 expression was associated with advanced stage and poor survival. p110α expression correlated with mTOR (ρ = 0.276). In six NSCLC cell lines, addition of rapamycin to LY294002 or NVP-BKM120 was synergistic. Even very low rapamycin concentrations (1 nM) resulted in sensitization to PI3K inhibitors. NVP-BEZ235 was highly active in NSCLC cell lines with IC(50)s in the nanomolar range and resultant down-regulation of pAKT and pP70S6K. Adding Erlotinib to NVP-BEZ235 resulted in synergistic growth inhibition.

conclusionsThe association between PI3K expression, advanced stage and survival in NSCLC suggests that it might be a valuable drug target. Concurrent inhibition of PI3K and mTOR is synergistic in vitro, and a dual PI3K/mTOR inhibitor was highly active. Adding EGFR inhibition resulted in further growth inhibition. Targeting the PI3K/AKT/mTOR pathway at multiple levels should be tested in clinical trials for NSCLC.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overAntineoplastic AgentsBlotting, WesternCarcinoma, Non-Small-Cell LungCarcinoma, Squamous CellCell Line, TumorCell ProliferationClass Ia Phosphatidylinositol 3-KinaseDrug SynergismFemaleFluorescent Antibody TechniqueHumansImmunoenzyme TechniquesAntineoplastic AgentsClass Ia Phosphatidylinositol 3-KinaseMTOR protein, humanPhosphoinositide-3 Kinase InhibitorsProtein Kinase InhibitorsProto-Oncogene Proteins c-aktTOR Serine-Threonine Kinases

Identifiers

PMID22355357
PMCPMC3280285
OpenAlexW1986814178

What Socratic holds

Textmetadata
LicenceCC0
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 Socratic graph.