Evidence map›Paper›PMID 20482834›Full record

ArticleBMC cancer2010

Estrogen regulation of TRPM8 expression in breast cancer cells.

Dechen Chodon, Arnaud Guilbert, Isabelle Dhennin-Duthille, Mathieu Gautier, Marie-Sophie Telliez, Henri Sevestre, Halima Ouadid-Ahidouch

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 10% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.

  1. Pooled it
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  4. Association between dysregulated expression of CaFrontiers in bioinformatics · 2025
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  10. The Role of TRPM7 in Oncogenesis.International journal of molecular sciences · 2024
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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

7 authors at 3 institutions in 1 country.

Dechen ChodonLaboratoire de Physiologie Cellulaire et Moléculaire, JE 2530: Canaux ioniques dans cancer du sein, Faculté des Sciences, Université Picardie Jules Vernes, 33 rue Saint Leu, 80000, Amiens, France.
Arnaud Guilbert
Isabelle Dhennin-Duthille
Mathieu Gautier
Marie-Sophie Telliez
Henri Sevestre
Halima Ouadid-Ahidouch
Université de Picardie Jules Verne · FRLaboratoire de physiologie cellulaire et moléculaireCentre Hospitalier Universitaire Amiens-Picardie · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe calcium-permeable cation channel TRPM8 (melastatin-related transient receptor potential member 8) is over-expressed in several cancers. The present study aimed at investigating the expression, function and potential regulation of TRPM8 channels by ER alpha (estrogen receptor alpha) in breast cancer.

methodsRT-PCR, Western blot, immuno-histochemical, and siRNA techniques were used to investigate TRPM8 expression, its regulation by estrogen receptors, and its expression in breast tissue. To investigate the channel activity in MCF-7 cells, we used the whole cell patch clamp and the calcium imaging techniques.

resultsTRPM8 channels are expressed at both mRNA and protein levels in the breast cancer cell line MCF-7. Bath application of the potent TRPM8 agonist Icilin (20 microM) induced a strong outwardly rectifying current at depolarizing potentials, which is associated with an elevation of cytosolic calcium concentration, consistent with established TRPM8 channel properties. RT-PCR experiments revealed a decrease in TRPM8 mRNA expression following steroid deprivation for 48 and 72 hours. In steroid deprived medium, addition of 17-beta-estradiol (E2, 10 nM) increased both TRPM8 mRNA expression and the number of cells which respond to Icilin, but failed to affect the Ca2+ entry amplitude. Moreover, silencing ERalpha mRNA expression with small interfering RNA reduced the expression of TRPM8. Immuno-histochemical examination of the expression of TRPM8 channels in human breast tissues revealed an over-expression of TRPM8 in breast adenocarcinomas, which is correlated with estrogen receptor positive (ER+) status of the tumours.

conclusionTaken together, these results show that TRPM8 channels are expressed and functional in breast cancer and that their expression is regulated by ER alpha.

Indexed as

AdenocarcinomaBlotting, WesternBreast NeoplasmsCalciumCell Line, TumorEstradiolEstrogen Receptor alphaFemaleGene Expression Regulation, NeoplasticHumansImmunohistochemistryMembrane PotentialsPatch-Clamp TechniquesPyrimidinonesReverse Transcriptase Polymerase Chain ReactionRNA InterferenceCalciumEstradiolEstrogen Receptor alphaicilinPyrimidinonesRNA, MessengerTRPM8 protein, humanTRPM Cation Channels

Identifiers

PMID20482834
PMCPMC2887400
OpenAlexW1966439678

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.