Evidence map›Paper›PMID 19773750›Full record

ArticleBritish journal of cancer2009

Melatonin inhibits aromatase promoter expression by regulating cyclooxygenases expression and activity in breast cancer cells.

C Martínez-Campa, A González, M D Mediavilla, C Alonso-González, V Alvarez-García, E J Sánchez-Barceló, S Cos

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.1field-weighted citation impact, top 15% 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

36 citing papers in PubMed, 86 citations in OpenAlex.

  1. Trial
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  3. Beyond MIDAS: AnACS omega · 2026
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  14. Sleep and endocrine therapy in breast cancer.Current opinion in endocrine and metabolic research · 2021
    Article
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  17. Review
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  19. Review
  20. Melatonin: an endogenous miraculous indolamine, fights against cancer progression.Journal of cancer research and clinical oncology · 2020
    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

7 authors at 1 institution in 1 country.

C Martínez-CampaDepartment of Physiology and Pharmacology, School of Medicine, University of Cantabria, 39011 Santander, Spain.
A González
M D Mediavilla
C Alonso-González
V Alvarez-García
E J Sánchez-Barceló
S Cos
Universidad de Cantabria · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMelatonin reduces the development of breast cancer interfering with oestrogen-signalling pathways, and also inhibits aromatase activity and expression. Our objective was to study the promoters through which melatonin modifies aromatase expression, evaluate the ability of melatonin to regulate cyclooxygenases and assess whether the effects of melatonin are related to its effects on intracellular cAMP, in MCF-7 cells.

methodsTotal aromatase mRNA, aromatase mRNA promoter regions and cyclooxygenases mRNA expression were determined by real-time RT-PCR. PGE(2) and cAMP were measured by kits.

resultsMelatonin downregulated the gene expression of the two major specific aromatase promoter regions, pII and pI.3, and also that of the aromatase promoter region pI.4. Melatonin 1 nM was able to counteract the stimulatory effect of tetradecanoyl phorbol acetate on PGE(2) production and inhibit COX-2 and COX-1 mRNA expression. Melatonin 1 nM elicited a parallel time-dependent decrease in both cyclic AMP formation and aromatase mRNA expression.

conclusionsThis study shows that melatonin inhibits aromatase activity and expression by regulating the gene expression of specific aromatase promoter regions. A possible mechanism for these effects would be the regulation by melatonin of intracellular cAMP levels, mediated by an inhibition of cyclooxygenase activity and expression.

Indexed as

Promoter Regions, GeneticAromataseBreast NeoplasmsCell Line, TumorCyclic AMPDinoprostoneFemaleGene Expression Regulation, EnzymologicHumansMelatoninProstaglandin-Endoperoxide SynthasesRNA, MessengerAromataseCyclic AMPDinoprostoneMelatoninProstaglandin-Endoperoxide SynthasesRNA, Messenger

Identifiers

PMID19773750
PMCPMC2778514
OpenAlexW2075281841

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.