Estrogenic Activity of Some Phytoestrogens on Bovine Oxytocin and Thymidine Kinase-ERE Promoter through Estrogen Receptor-α in MDA-MB 231 Cells

Authors

  • Azadeh Fardipour Department of Quality Control, Razi Vaccine and Serum Research Institute, Karaj, Iran
  • Ehsan Zayerzadeh Department of Biology, Faculty of Food Industry and Agriculture, Standard Research Institute, Karaj, Iran.
  • Mohammad Kazem Koohi Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Abstract:

Background: Phytoestrogens, a group of plant-derived polyphenolic compounds have recently come into considerable attention due to the increasing information on their potential adverse effects in human health. Some of phytoestrogens show estrogenic activity that may be carcinogenic for human. In the present study, we investigated the transcriptional effects of variety of phytoestrogens on the bovine oxytocin and the thymidine kinase-ERE promoter by estrogen receptor α in MDA-MB 231 breast cancer cell line. Materials and Methods: Cells were seeded for transfections into 12- well plates at a density of 100000 cells per well were transfected with a total of 3 μg of plasmid DNA using calcium phosphate coprecipitation. Estrogen and some phytoestrogens (naringenin, 8-prenyl-naringenin and 6-( 1, 1 - dimethylallyl ) naringenin were used for the stimulation of transfected cells. Results: Findings of our study clearly demonstrated the subtype-selective activation of estrogen receptor (ER)α and (ER)β by the p hytoestrogen naringenin (activating estrogen receptor β) and its substituted forms 8-prenyl-naringenin and 6-( 1, 1 - dimethylallyl ) naringenin (activating estrogen receptor α) , on the ERE-controlled promoter as well as on the oxytocin gene promoter. Conclusion: The study revealed that some p hytoestrogen s show estrogenic activity by classical or non-classical mechanisms as well as exhibit estrogenic activity by undetermined mechanisms in transfected MDA-MB 231 cell line.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

estrogenic activity of some phytoestrogens on bovine oxytocin and thymidine kinase-ere promoter through estrogen receptor-α in mda-mb 231 cells

background: phytoestrogens, a group of plant-derived polyphenolic compounds have recently come into considerable attention due to the increasing information on their potential adverse effects in human health. some of phytoestrogens show estrogenic activity that may be carcinogenic for human. in the present study, we investigated the transcriptional effects of variety of phytoestrogens on the bo...

full text

Transcriptional effects of metal ions on the bovine oxytocin and the thymidine kinase-ERE promoter through the estrogen receptor a in MDA-MB 231 breast cancer cell line

BACKGROUND: Some of metal ions as environmental pollutants show estrogenic activity. This xenostrogenic compounds can be caused carcinogenicity in organs. The mechanism of carcinogenicity of metal ions is not clarified. OBJECTIVES: In this study, we investigated the Transcriptional effects of variety of metal ions on the bovine oxytocin and the thymidine kinase-ERE promoter by estrogen receptor...

full text

transcriptional effects of metal ions on the bovine oxytocin and the thymidine kinase-ere promoter through the estrogen receptor a in mda-mb 231 breast cancer cell line

background: some of metal ions as environmental pollutants show estrogenic activity. this xenostrogenic compounds can be caused carcinogenicity in organs. the mechanism of carcinogenicity of metal ions is not clarified. objectives: in this study, we investigated the transcriptional effects of variety of metal ions on the bovine oxytocin and the thymidine kinase-ere promoter by estrogen receptor...

full text

Transcriptional effects of Organochlorine o,p′-DDT and its Metabolite p,p′-DDE in Transfected MDA-MB 231 and MCF-7 Breast Cancer Cell Lines

Background: The organochlorine DDT has estrogenic activity but the mechanism underlying the estrogenic activity of this pesticide remains unclear. In the present investigation here, we studied the transcriptional effects of a synthetic organochlorine pesticide o,p’-DDT [1.1.1.-trichloro-2-(o-chlorophenyl)-2-p-chloriphenyl ethane] and its metabolite p,p'-DDE (2-2-bis(4/chlorophenyl)-1-1-di...

full text

transcriptional effects of organochlorine o,p′-ddt and its metabolite p,p′-dde in transfected mda-mb 231 and mcf-7 breast cancer cell lines

background: the organochlorine ddt has estrogenic activity but the mechanism underlying the estrogenic activity of this pesticide remains unclear. in the present investigation here, we studied the transcriptional effects of a synthetic organochlorine pesticide o,p’-ddt [1.1.1.-trichloro-2-(o-chlorophenyl)-2-p-chloriphenyl ethane] and its metabolite p,p'-dde (2-2-bis(4/chlorophenyl)-1-1-dic...

full text

Potential Effects of Chrysin on MDA-MB-231 Cells

This study aims to elucidate the effects of chrysin on human ER-negative breast cancer cell line, MDA-MB-231. The study demonstrated that treatment of MDA-MB-231 cells with 20 microM chysin for 48 h significantly inhibited the growth of MDA-MB-231 cells and induced cytoplasmic lipid accumulation in the cells, but that the observed of cell death was not caused by apoptosis. The expression of PPA...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 2  issue 3

pages  28- 35

publication date 2014-08

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023