Transcriptional regulation of bidirectional gene pairs by 17-β-estradiol in MCF-7 breast cancer cells
نویسندگان
چکیده
منابع مشابه
Mechanism of transcriptional regulation of LRP16 gene expression by 17-beta estradiol in MCF-7 human breast cancer cells.
LRP16 gene expression is induced by 17-betaestradiol (E2) via estrogen receptor alpha (ERalpha) in MCF-7 human breast cancer cells. A previous study also demonstrated that ectopic expression of LRP16 gene promoted MCF-7 cell proliferation. To explore the mechanism of hormone-induced LRP16 gene expression, the LRP16 gene promoter region (-2600 to -24 bp upstream of the LRP16 gene translation sta...
متن کاملTranscriptional up-regulation of PHLDA1 by 17beta-estradiol in MCF-7 breast cancer cells.
Most breast cancer risk factors are associated with prolonged exposure of the mammary gland to high levels of estrogens. The actions of estrogens are predominantly mediated by two receptors, ERalpha and ERbeta, which act as transcription factors binding with high affinity to estrogen response elements in the promoter region of target genes. However, most target genes do not contain the consensu...
متن کاملRegulation of cyclin B1 by estradiol and polyamines in MCF-7 breast cancer cells.
Recent studies have identified a family of proteins called cyclins that control cell cycle. Among these proteins, cyclin B synthesis and degradation are necessary and sufficient to cause a Xenopus egg cell-free system to oscillate between S and M. To understand the link between hormonal regulation of cell growth and the expression of B-type cyclins, we studied the effect of estradiol on cyclin ...
متن کاملBerberine suppresses migration of MCF-7 breast cancer cells through down-regulation of chemokine receptors
Objective(s): Berberine is one of the main alkaloids and it has been proven to have different pharmacological effects including inhibition of cell cycle and progression of apoptosis in various cancerous cells; however, its effects on cancer metastasis are not well known. Cancer cells obtain the ability to change their chemokine system and convert into metastatic cells. In this study, we examine...
متن کاملRegulation of ornithine decarboxylase gene expression in MCF-7 breast cancer cells by antiestrogens.
Ornithine decarboxylase (ODC) is an enzyme intimately related to cell growth regulation. The metabolic products of ODC, the polyamines, are known to play a vital role in the structure and function of biological macromolecules including nucleic acids and proteins. The activity of ODC is stimulated by estrogens in their target cells. In order to gain insight into the molecular mechanism of action...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Brazilian Journal of Medical and Biological Research
سال: 2011
ISSN: 0100-879X
DOI: 10.1590/s0100-879x2010007500149