Evidence map›Paper›PMID 26973241›Full record

ArticleOncogene2016

Cancer stem cell drugs target K-ras signaling in a stemness context.

A K Najumudeen, A Jaiswal, B Lectez, C Oetken-Lindholm, C Guzmán, E Siljamäki, I M D Posada, E Lacey, T Aittokallio, D Abankwa

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

55 citing papers in PubMed, 91 citations in OpenAlex.

  1. Review
  2. Review
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  4. Precision immune regulation in KRAS-mutated cancers: the final piece of the puzzle?Journal of experimental & clinical cancer research : CR · 2025
    Review
  5. Article
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  18. Single and double modified salinomycin analogs target stem-like cells in 2D and 3D breast cancer models.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2021
    Article
  19. Article
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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

10 authors at 3 institutions in 1 country.

A K NajumudeenTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
A JaiswalInstitute for Molecular Medicine Finland, FIMM, University of Helsinki, Helsinki, Finland.
B LectezTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
C Oetken-LindholmTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
C GuzmánTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
E SiljamäkiTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
I M D PosadaTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
E LaceyMicrobial Screening Technologies Pty. Ltd., Building C, Smithfield, New South Wales, Australia.
T AittokallioInstitute for Molecular Medicine Finland, FIMM, University of Helsinki, Helsinki, Finland.
D AbankwaTurku Centre for Biotechnology, Åbo Akademi University, Turku, Finland.
Åbo Akademi University · FITurku Centre for Biotechnology · FIUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cancer stem cells (CSCs) are considered to be responsible for treatment relapse and have therefore become a major target in cancer research. Salinomycin is the most established CSC inhibitor. However, its primary mechanistic target is still unclear, impeding the discovery of compounds with similar anti-CSC activity. Here, we show that salinomycin very specifically interferes with the activity of K-ras4B, but not H-ras, by disrupting its nanoscale membrane organization. We found that caveolae negatively regulate the sensitivity to this drug. On the basis of this novel mechanistic insight, we defined a K-ras-associated and stem cell-derived gene expression signature that predicts the drug response of cancer cells to salinomycin. Consistent with therapy resistance of CSC, 8% of tumor samples in the TCGA-database displayed our signature and were associated with a significantly higher mortality. Using our K-ras-specific screening platform, we identified several new candidate CSC drugs. Two of these, ophiobolin A and conglobatin A, possessed a similar or higher potency than salinomycin. Finally, we established that the most potent compound, ophiobolin A, exerts its K-ras4B-specific activity through inactivation of calmodulin. Our data suggest that specific interference with the K-ras4B/calmodulin interaction selectively inhibits CSC.

Indexed as

CalmodulinCaveolaeGene Expression Regulation, NeoplasticHumansMCF-7 CellsNeoplasmsNeoplastic Stem CellsOxazolesPolyether PolyketidesProto-Oncogene Proteins p21(ras)Pyransras ProteinsSesterterpenesCalmodulinconglobatinKRAS protein, humanophiobolin AOxazolesPolyether PolyketidesProto-Oncogene Proteins p21(ras)Pyransras ProteinssalinomycinSesterterpenes

Identifiers

PMID26973241
PMCPMC5057041
OpenAlexW2298343163

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.