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Updated: Jul 13, 2026

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells
Published on: August 12, 2015
Regulation of BRCA1 messenger RNA stability in human epithelial cell lines and during cell cycle progression
Jodi M Saunus1, Stacey L Edwards, Juliet D French
1School of Molecular and Microbial Sciences, The University of Queensland, St. Lucia, Queensland 4072, Australia.
Abstract:
The mechanisms regulating expression of breast cancer 1 (BRCA1) are not fully characterised. By studying regulation of endogenous BRCA1 in human epithelial cell lines and during cell cycle progression, we provide evidence to suggest BRCA1 is regulated post-transcriptionally at the level of messenger RNA stability. We also show that RNA-binding proteins associate with an AU-rich, cis-active sequence of the BRCA1 3' untranslated region in a cell cycle-dependent manner. Our data identify a new post-transcriptional regulatory axis and a novel mechanism for modulating the levels of BRCA1 protein, with possible implications for understanding the mechanisms underlying BRCA1 repression in breast cancer.
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