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Wronski A, Sandhu GK, Milevskiy MJ, et al. MicroRNA-206 is differentially expressed in Brca1-deficient mice and regulates epithelial and stromal cell compartments of the mouse mammary gland. Oncogenesis. 2016;5:e218doi: 10.1038/oncsis.2016.27.
Wronski, A., Sandhu, G. K., Milevskiy, M. J., Brewster, B. L., Bridge, J. A., Shewan, A. M., Edwards, S. L., French, J. D., & Brown, M. A. (2016). MicroRNA-206 is differentially expressed in Brca1-deficient mice and regulates epithelial and stromal cell compartments of the mouse mammary gland. Oncogenesis, 5e218. https://doi.org/10.1038/oncsis.2016.27
Wronski, A, et al. "MicroRNA-206 is differentially expressed in Brca1-deficient mice and regulates epithelial and stromal cell compartments of the mouse mammary gland." Oncogenesis vol. 5 (2016): e218. doi: https://doi.org/10.1038/oncsis.2016.27
Wronski A, Sandhu GK, Milevskiy MJ, Brewster BL, Bridge JA, Shewan AM, Edwards SL, French JD, Brown MA. MicroRNA-206 is differentially expressed in Brca1-deficient mice and regulates epithelial and stromal cell compartments of the mouse mammary gland. Oncogenesis. 2016 Apr 04;5:e218. doi: 10.1038/oncsis.2016.27. PMID: 27043663; PMCID: PMC4848838.
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Oncogenesis. 2016 Apr 04;5:e218. doi: 10.1038/oncsis.2016.27.

MicroRNA-206 is differentially expressed in Brca1-deficient mice and regulates epithelial and stromal cell compartments of the mouse mammary gland.

Oncogenesis

A Wronski, G K Sandhu, M J G Milevskiy, B L Brewster, J A Bridge, A M Shewan, S L Edwards, J D French, M A Brown

Affiliations

  1. School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland, Australia.
  2. QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.

PMID: 27043663 PMCID: PMC4848838 DOI: 10.1038/oncsis.2016.27

Abstract

Depletion of Brca1 leads to defects in mouse mammary gland development and mammary tumors in humans and mice. To explore the role of microRNAs (miRNAs) in this process, we examined the mammary glands of MMTV-Cre Brca1(Co/Co) mice for differential miRNA expression using a candidate approach. Several miRNAs were differentially expressed in mammary tissue at day 1 of lactation and in mammary epithelial cell lines in which Brca1 messenger RNA (mRNA) levels have been reduced. Functional studies revealed that several of these miRNAs regulate mammary epithelial cell function in vitro, including miR-206. Creation and analysis of MMTV-miR-206 transgenic mice showed no effect on lactational mammary development and no tumors, but indicates a role in mammary tissue remodeling in mature mice, potentially involving Igf-1 and Sfrp1. These results indicate the potential of miRNAs to mediate the consequences of Brca1 loss and suggest a novel function for miR-206.

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