Evidence map›Paper›PMID 33250768›Full record

ArticleFrontiers in pharmacology2020

Simvastatin Suppresses Human Breast Cancer Cell Invasion by Decreasing the Expression of Pituitary Tumor-Transforming Gene 1.

Litian Yin, Zhongmei He, Bing Yi, Linyuan Xue, Jianxin Sun

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 23% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Statins as Repurposed Drugs in Gynecological Cancer: A Review.International journal of molecular sciences · 2022
    Pooled it
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  20. Simvastatin in the Treatment of Colorectal Cancer: A Review.Evidence-based complementary and alternative medicine : eCAM · 2022
    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 2 countries.

Litian YinCenter for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA, United States.
Zhongmei HeCenter for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA, United States.
Bing YiCenter for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA, United States.
Linyuan XueKey Laboratory for Cellular Physiology, Ministry of Education, Department of Physiology, Shanxi Medical University, Taiyuan, China.
Jianxin SunCenter for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA, United States.
Thomas Jefferson University · USShanxi Medical University · CN

Funding

Regulation of Endothelial Nitric Oxide Synthase mRNA StabilityR01HL103869 · NHLBI · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI SUN, JIANXIN · 2010 to 2020
$3.5M
Nur77 Suppresses Sepsis-Induced Endothelial DysfunctionR01GM123047 · NIGMS · THOMAS JEFFERSON UNIVERSITY · PI SUN, JIANXIN · 2017 to 2020
$1.2M
NHLBI NIH HHS R01 HL103869NIGMS NIH HHS R01 GM123047
6 · The paper itself

Abstract

Statins, or 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors, have been widely used to lower cholesterol and prevent cardiovascular diseases. Recent preclinical and clinical studies have shown that statins exert beneficial effects in the management of breast cancer, while the underlying mechanisms remain to be elucidated. Herein, we sought to investigate the effect of statins on the expression of pituitary tumor-transforming gene 1 (PTTG1), a critical gene involved in human breast cancer invasion and metastasis. Our results showed that PTTG1 is highly expressed in malignant Hs578T and MDA-MB-231 breast cancer cell lines as compared with normal or less malignant breast cancer cells. Furthermore, we found that the expression of PTTG1 was markedly suppressed by lipophilic statins, such as simvastatin, fluvastatin, mevastatin, and lovastatin, but not by hydrophilic pravastatin. In a dose and time dependent manner, simvastatin suppressed PTTG1 expression by decreasing PTTG1 mRNA stability in MDA-MB-231 cells. Both siRNA-mediated knockdown of PTTG1 expression and simvastatin treatment markedly inhibited MDA-MB-231 cell invasion, MMP-2 and MMP-9 activity, and the expression of PTTG1 downstream target genes, while ectopic expression of PTTG1 promoted cancer cell invasion, and partly reversed simvastatin-mediated inhibition of cell invasion. Mechanistically, we found that inhibition of PTTG1 expression by simvastatin was reversed by geranylgeranyl pyrophosphate, but not by farnesyl pyrophosphate, suggesting the involvement of geranylgeranyl synthesis in regulating PTTG1 expression. Our results identified statins as novel inhibitors of PTTG1 expression in breast cancer cells and provide mechanistic insights into how simvastatin prevent breast cancer metastasis as observed in recent preclinical and clinical studies.

Indexed as

breast cancercell migrationpituitary tumor-transforming gene 1simvastatinstatins

Identifiers

PMID33250768
PMCPMC7672329
OpenAlexW3096166580

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.