Evidence map›Paper›PMID 26565813›Full record

ArticleOncotarget2016

Simvastatin-induced breast cancer cell death and deactivation of PI3K/Akt and MAPK/ERK signalling are reversed by metabolic products of the mevalonate pathway.

Tingting Wang, Serena Seah, Xinyi Loh, Ching-Wan Chan, Mikael Hartman, Boon-Cher Goh, Soo-Chin Lee

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 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Cholesterol as a metabolic integrator of oncogenic signaling, immune evasion, and therapy resistance.Apoptosis : an international journal on programmed cell death · 2026
    Review
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  10. Statin use and liver-related prognosis among patients with MASLD.JHEP reports : innovation in hepatology · 2025
    Article
  11. Article
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  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. PI3K Signaling at the Crossroads of Lipid Metabolism and Cancer.Advances in experimental medicine and biology · 2025
    Review
  19. Article
  20. Article

10 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 1 country.

Tingting WangCancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
Serena SeahCancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
Xinyi LohCancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
Ching-Wan ChanDepartment of Surgery, National University Cancer Institute, National University Health System, Singapore, Singapore.
Mikael HartmanDepartment of Surgery, National University Cancer Institute, National University Health System, Singapore, Singapore.
Boon-Cher GohCancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
Soo-Chin LeeCancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
National University Cancer Institute, Singapore · SGNational University Health System · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Statins purportedly exert anti-tumoral effects on breast cancer. However, the biologic mechanisms for these actions are not fully elucidated. The aims of this study were 1) to explore the effects of simvastatin on apoptosis, proliferation as well as PI3K/Akt/mTOR and MAPK/ERK pathway in a window-of-opportunity breast cancer trial; 2) to further confirm findings from the clinical trial by functional studies; 3) to explore the regulatory role of mevalonate pathway on the anti-tumoral effects of simvastatin. In clinical samples, simvastatin led to increase in cleaved caspase-3 (p = 0.002) and decreased trend for Ki67 (p = 0.245). Simvastatin markedly suppressed PI3K/Akt/mTOR signalling by activating PTEN (p = 0.005) and by dephosphorylating Akt (p = 0.002) and S6RP (p = 0.033); it also inhibited MAPK/ERK pathway by dephosphorylating c-Raf (p = 0.018) and ERK1/2 (p = 0.002). In ER-positive (MCF-7, T47D) and ER-negative (MDA-MB-231, BT-549) breast cancer cells, simvastatin treatment consistently induced apoptosis and inhibited proliferation by deregulating caspase cascades and cell cycle proteins in a dose dependent manner. Concordantly, simvastatin strongly suppressed PI3K/Akt/mTOR pathway by enhancing PTEN expression and by further sequentially dephosphorylating downstream cascades including Akt, mTOR, p70S6K, S6RP and 4E-BP1. Furthermore, simvastatin significantly inhibited MAPK/ERK pathway by dephosphorylating sequential cascades such as c-Raf, MEK1/2 and ERK1/2. These simvastatin anti-tumoral effects were reversed by metabolic products of the mevalonate pathway, including mevalonate, farnesyl pyrophosphate and geranylgeranyl pyrophosphate. These findings shed light on the biological and potential anti-tumoral effects of simvastatin in breast cancer.

Indexed as

AdultAgedApoptosisBlotting, WesternBreast NeoplasmsCarcinoma, Ductal, BreastCarcinoma, LobularExtracellular Signal-Regulated MAP KinasesFemaleGene Expression Regulation, NeoplasticHumansHydroxymethylglutaryl-CoA Reductase InhibitorsImmunoenzyme TechniquesMevalonic AcidMiddle AgedMitogen-Activated Protein KinasesExtracellular Signal-Regulated MAP KinasesHydroxymethylglutaryl-CoA Reductase InhibitorsMevalonic AcidMitogen-Activated Protein KinasesMTOR protein, humanPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktSimvastatinTOR Serine-Threonine Kinasesbreast cancerMAPK/ERKmevalonate pathwayPI3K/Akt/mTORsimvastatin

Identifiers

PMID26565813
PMCPMC4823053
OpenAlexW2145357526

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.