Abstract

All-trans-retinoic acid has been shown to have an antiproliferative effect in the estrogen receptor alpha-positive breast cancer cell line MCF-7. The mechanism of this effect is not well understood. We have previously shown that 17beta-estradiol down-regulates the basic helix-loop-helix factor Hairy and Enhancer of Split homologue-1 in MCF-7 and T47D cells (Ström, A., Arai, N., Leers, J., and Gustafsson, J. A. (2000) Oncogene 19, 5951-5953) and that this down-regulation is essential for proliferation in response to 17beta-estradiol. Treatment of the same cells with all-trans-retinoic acid prevented 17beta-estradiol-mediated down-regulation of the factor. The antiproliferative effect of all-trans-retinoic acid correlated well with the prevention of Hairy and Enhancer of Split homologue-1 down-regulation. Increasing concentrations of all-trans-retinoic acid, in the range of 1-1000 nm, produced a dose-dependent inhibition of proliferation and prevented 17beta-estradiol-mediated down-regulation of Hairy and Enhancer of Split homologue-1. By using a receptor-specific ligand we were able to show that the retinoic acid receptor alpha is important for regulation of the Hairy and Enhancer of Split homologue-1. Expression of a dominant negative form of Hairy and Enhancer of Split homologue-1 in MCF-7 cells abolished the growth-inhibitory effect of all-trans-retinoic acid in these cells. This finding indicates that Hairy and Enhancer of Split homologue-1 is a mediator of the antiproliferative effect of all-trans-retinoic acid in estrogen receptor alpha-positive breast cancer cell lines.

Keywords

MCF-7Retinoic acidChemistryCancer researchBreast cancerCell cultureInternal medicineCancer cell linesOncologyCancerHuman breastBiologyMedicineBiochemistryCancer cellGeneticsGene

MeSH Terms

AnimalsBasic Helix-Loop-Helix Transcription FactorsBlottingWesternCOS CellsCell DivisionCell LineDose-Response RelationshipDrugDown-RegulationEstradiolGenesDominantHomeodomain ProteinsHumansPrecipitin TestsRNAMessengerReceptorsRetinoic AcidRetinoic Acid Receptor alphaReverse Transcriptase Polymerase Chain ReactionTranscription Factor HES-1TranscriptionGeneticTransfectionTretinoinTumor CellsCultured

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Publication Info

Year
2002
Type
article
Volume
277
Issue
32
Pages
28376-28379
Citations
48
Access
Closed

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Cite This

Patrick Müller, Silke Kietz, Jan-Ακε Gustafsson et al. (2002). The Anti-estrogenic Effect of All-trans-retinoic Acid on the Breast Cancer Cell Line MCF-7 Is Dependent on HES-1 Expression. Journal of Biological Chemistry , 277 (32) , 28376-28379. https://doi.org/10.1074/jbc.c200340200

Identifiers

DOI
10.1074/jbc.c200340200
PMID
12080040

Data Quality

Data completeness: 86%