Evidence map›Paper›PMID 27542970›Full record

ArticleBMC cancer2016

Dactolisib (NVP-BEZ235) toxicity in murine brain tumour models.

I A Netland, H E Førde, L Sleire, L Leiss, M A Rahman, B S Skeie, C H Gjerde, P Ø Enger, D Goplen

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 30 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

9 authors at 2 institutions in 1 country.

I A NetlandOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
H E FørdeOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
L SleireOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
L LeissOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
M A RahmanOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
B S SkeieDepartment of Clinical Medicine, K1, University of Bergen, Jonas Lies vei 87, 5021, Bergen, Norway.
C H GjerdeOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
P Ø EngerOncomatrix research lab, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway.
D GoplenKristian Gerhard Jebsen Brain Tumour Research Center, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5009, Bergen, Norway. dorota@goplen.net.
University of Bergen · NOHaukeland University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlioblastomas (GBMs) are highly malignant brain tumours with a poor prognosis, and current cytotoxic regimens provide only a limited survival benefit. The PI3K/Akt/mTOR pathway has been an attractive target for therapy due to its high activation in GBMs as well as other cancers. The dual pan-PI3K/mTOR kinase inhibitor dactolisib (NVP-BEZ235) is an anti-neoplastic compound currently under investigation. However, little is known about its efficacy in human GBMs. We aimed at evaluating the efficacy of dactolisib in human glioblastoma cells, as well as in murine models carrying human GBM xenografts.

methodsTo assess the effect of dactolisib in vitro, MTS assay, manual cell count, BrdU incorporation and Annexin V staining experiments were used to observe growth and apoptosis. Furthermore, Akt phosphorylation (S473), a downstream target of PI3K, was explored by western blotting. Animal studies utilizing orthotopic xenograft models of glioblastoma were performed in nude rats and NOD/SCID mice to monitor survival benefit or inhibition of tumor growth.

resultsWe found that dactolisib in vitro shows excellent dose dependent anti-growth properties and increase in apoptosis. Moreover, dose dependent inhibition of Akt phosphorylation (S473), a downstream effect of PI3K, was observed by western blotting. However, in two independent animal studies utilizing nude rats and NOD/SCID mice in orthotopic xenograft models of glioblastoma, we observed no survival benefit or inhibition of tumour growth. Severe side effects were observed, such as elevated levels of blood glucose and the liver enzyme alanine transaminase (ALT), in addition to diarrhoea, hair loss (alopecia), skin rash and accumulation of saliva in the oral cavity.

conclusionTaken together, our results suggest that despite the anti-neoplastic efficacy of dactolisib in glioma treatment in vitro, its utility in vivo is questionable due to toxicity.

Indexed as

AnimalsAntineoplastic AgentsBrain NeoplasmsCell Line, TumorCell ProliferationDose-Response Relationship, DrugGlioblastomaHumansImidazolesMicePhosphorylationProto-Oncogene Proteins c-aktQuinolinesRatsSignal TransductionSurvival AnalysisAntineoplastic AgentsdactolisibImidazolesProto-Oncogene Proteins c-aktQuinolinesBEZ235Brain tumourDactolisibGlioblastomaPatient-derived xenograftPI3KProliferation

Identifiers

PMID27542970
PMCPMC4992256
OpenAlexW2515435912

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.