Evidence map›Paper›PMID 29125889›Full record

ArticleJournal of cellular biochemistry2018

Pterostilbene down-regulates hTERT at physiological concentrations in breast cancer cells: Potentially through the inhibition of cMyc.

Michael Daniel, Trygve O Tollefsbol

Abstract read
In one paragraph

Article in Journal of cellular biochemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  3. Article
  4. Article
  5. Article
  6. Experimental Studies on the Therapeutic Potential ofPlants (Basel, Switzerland) · 2024
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Anti-Stem Cell Property of Pterostilbene in Gastrointestinal Cancer Cells.International journal of molecular sciences · 2020
    Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Telomerase Inhibitors from Natural Products and Their Anticancer Potential.International journal of molecular sciences · 2017
    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

2 authors at 1 institution in 1 country.

Michael DanielDepartment of Biology, University of Alabama at Birmingham, Birmingham, Alabama.
Trygve O TollefsbolDepartment of Biology, University of Alabama at Birmingham, Birmingham, Alabama.ORCID 0000-0002-0284-1511
University of Alabama at Birmingham · US

Funding

Cancer Prevention & Control Training ProgramR25CA047888 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DEMARK-WAHNEFRIED, WENDY, MENESES, KAREN M · 1988 to 2016
$11.2M
Combinatorial epigenetic-based prevention of breast cancerR01CA178441 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI TOLLEFSBOL, TRYGVE O · 2014 to 2025
$3.2M
Early life prevention of breast cancer with combined epigenetic botanicalsR01CA204346 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI TOLLEFSBOL, TRYGVE O · 2017 to 2021
$1.7M
NCI NIH HHS R01 CA178441NCI NIH HHS R01 CA204346NCI NIH HHS R25 CA047888
6 · The paper itself

Abstract

Human telomerase reverse transcriptase (hTERT) encodes the catalytic subunit of telomerase, which has been shown to be upregulated in many cancers. Pterostilbene is a naturally occurring stilbenoid and phytoalexin found primarily in blueberries that exhibits antioxidant activity and inhibits the growth of various cancer cell types. Therefore, the aim of this study was to determine whether treatment with pterostilbene, at physiologically achievable concentrations, can inhibit the proliferation of breast cancer cells and down-regulate the expression of hTERT. We found that pterostilbene inhibits the cellular proliferation of MCF-7 and MDA-MB-231 breast cancer cells in both a time- and dose-dependent manner, without significant toxicity to the MCF10A control cells. Pterostilbene was also shown to increase apoptosis in both breast cancer cell lines. Dose-dependent cell cycle arrest in G1 and G2/M phase was observed after treatment with pterostilbene in MCF-7 and MDA-231 cells, respectively. hTERT expression was down-regulated after treatment in both a time- and dose-dependent manner. Pterostilbene also reduced telomerase levels in both cell lines in a dose-dependent manner. Moreover, cMyc, a proposed target of the pterostilbene-mediated inhibition of hTERT, was down-regulated both transcriptionally and posttranscriptionally after treatment. Collectively, these findings highlight a promising use of pterostilbene as a natural, preventive, and therapeutic agent against the development and progression of breast cancer.

Indexed as

Down-RegulationBreast NeoplasmsCell Cycle CheckpointsCell Line, TumorCell ProliferationDose-Response Relationship, DrugFemaleGene Expression Regulation, NeoplasticHumansMCF-7 CellsProto-Oncogene Proteins c-mycStilbenesTelomeraseMYC protein, humanProto-Oncogene Proteins c-mycpterostilbeneStilbenesTelomeraseTERT protein, humanblueberriesbreast cancercancercMychTERTphysiological concentrationspterostilbenetelomerase

Identifiers

PMID29125889
PMCPMC5985967
OpenAlexW2767824374

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.