Evidence map›Paper›PMID 22415553›Full record

ArticleLeukemia2012

Optimal induction of myeloma cell death requires dual blockade of phosphoinositide 3-kinase and mTOR signalling and is determined by translocation subtype.

C Stengel, C W Cheung, J Quinn, K Yong, A Khwaja

Open access · greenAbstract read
In one paragraph

Article in Leukemia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.9field-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

9 citing papers in PubMed, 22 citations in OpenAlex.

  1. Pathogenic signaling in multiple myeloma.Seminars in oncology · 2022
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Signaling Pathways and Emerging Therapies in Multiple Myeloma.Current hematologic malignancy reports · 2016
    Review
  7. Review
  8. Article
  9. Review
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 2 institutions in 1 country.

C StengelDepartment of Haematology, University College London Cancer Institute, London, UK.
C W Cheung
J Quinn
K Yong
A Khwaja
University College London · GBLondon Cancer · GB

Funding

Cancer Research UK A10501
6 · The paper itself

Abstract

Novel inhibitors of PI3K, Akt and mTOR have been developed recently, some of which have entered clinical trials. Although such compounds inhibit cell proliferation, their effects on cell survival, an important determinant of clinical response, are less distinct. Using a broad panel of myeloma cell lines and primary patient samples, we show that dual PI3K and mTOR inhibition can induce cell death. The effects are most marked in cells expressing the t(4;14) translocation, whereas t(11;14) cells are largely resistant. Using specific inhibitors of individual pathway components, we show that optimal induction of cell death requires inhibition of both PI3K and mTOR. This is due to a PI3K-independent component of mTOR activation downstream of the MAP kinase pathway. Novel mTOR kinase inhibitors, which block both TORC1 and TORC2 complexes thereby also reducing Akt activity, are less effective than dual PI3K/mTOR inhibitors because of feedback activation of PI3K signalling. Dual PI3K/mTOR inhibitors sensitise t(4;14) and t(14;16), but not t(11;14), expressing cells to the cytotoxic effects of dexamethasone. We have identified a robust cytogenetic biomarker for response to PI3K/mTOR inhibition--these results will inform the design and prioritisation of clinical studies with novel inhibitors in genetic subgroups of myeloma.

Indexed as

Phosphoinositide-3 Kinase InhibitorsTranslocation, GeneticCell DeathCell Line, TumorEnzyme ActivationHumansMultiple MyelomaPhosphatidylinositol 3-KinasesProtein Kinase InhibitorsSignal TransductionTOR Serine-Threonine KinasesPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsProtein Kinase InhibitorsTOR Serine-Threonine Kinases

Identifiers

PMID22415553
PMCPMC3392205
OpenAlexW2085129973

What OpenQuestion holds

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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.