scholarly journals Rapamycin enhances the antiproliferative effect of transforming growth factor-β on MCF-7 human breast cancer cells

2017 ◽  
Vol 14 (1) ◽  
pp. 748-752 ◽  
Author(s):  
Guoping Wang ◽  
Tao Yin
Keyword(s):  
Breast Cancer ◽  
Growth Factor ◽  
Cancer Cells ◽  
Human Breast Cancer ◽  
Breast Cancer Cells ◽  
Transforming Growth Factor ◽  
Transforming Growth Factor Β ◽  
Human Breast Cancer Cells ◽  
Human Breast ◽  
Mcf 7

Evidence that transforming growth factor-β is a hormonally regulated negative growth factor in human breast cancer cells

Cell ◽  
1987 ◽  
Vol 48 (3) ◽  
pp. 417-428 ◽  
Author(s):  
Cornelius Knabbe ◽  
Marc E. Lippman ◽  
Lalage M. Wakefield ◽  
Kathleen C. Flanders ◽  
Attan Kasid ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Growth Factor ◽  
Cancer Cells ◽  
Human Breast Cancer ◽  
Breast Cancer Cells ◽  
Transforming Growth Factor ◽  
Transforming Growth Factor Β ◽  
Human Breast Cancer Cells ◽  
Human Breast ◽  
Negative Growth

Vitamin D Induced Up-Regulation of Keratinocyte Growth Factor (FGF-7/KGF) in MCF-7 Human Breast Cancer Cells

2000 ◽  
Vol 273 (2) ◽  
pp. 675-680 ◽  
Author(s):  
Alex Lyakhovich ◽  
Nickolai Aksenov ◽  
Pasi Pennanen ◽  
Susanna Miettinen ◽  
Merja H. Ahonen ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Vitamin D ◽  
Growth Factor ◽  
Cancer Cells ◽  
Human Breast Cancer ◽  
Breast Cancer Cells ◽  
Keratinocyte Growth Factor ◽  
Human Breast Cancer Cells ◽  
Human Breast ◽  
Mcf 7

scholarly journals Analogs of GnRH-I and GnRH-II inhibit epidermal growth factor-induced signal transduction and resensitize resistant human breast cancer cells to 4OH-tamoxifen

2005 ◽  
Vol 153 (4) ◽  
pp. 613-625 ◽  
Author(s):  
Andreas R Günthert ◽  
Carsten Gründker ◽  
Agnes Olota ◽  
Julia Läsche ◽  
Nicola Eicke ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Growth Factor ◽  
Cancer Cells ◽  
Human Breast Cancer ◽  
Breast Cancer Cells ◽  
Human Breast Cancer Cells ◽  
Human Breast ◽  
Antiproliferative Effects ◽  
Epidermal Growth ◽  
Mcf 7

About 50–64% of human breast cancers express receptors for GnRH-I. Direct antiproliferative effects of analogs of GnRH-I on human breast cancer cell lines have been shown. They are at least in part mediated by antagonizing growth promoting effects of estradiol, epidermal growth factor (EGF) or insulin-like growth factor. Recently, expression of a putative receptor for GnRH-II in human tissues was demonstrated. Antiproliferative effects of GnRH-II in human endometrial and ovarian cancer cells were shown not to be mediated through the GnRH-I receptor. Now we demonstrate direct anti-proliferative effects of the GnRH-I analog Triptorelin and the GnRH-II analog [d-Lys6]GnRH-II in MCF-7 and T47D human breast cancer cells expressing GnRH-I receptors and putative GnRH-II receptors. Pretreatment with Triptorelin or [d-Lys6]GnRH-II blocked EGF-induced autophosphoryla-tion of EGF receptor and activation of mitogen-activated protein kinase (extracellular-signal-regulated kinase 1/2 (ERK1/2)) in these cells. In sublines of MCF-7 and T47D cells, which were developed to be resistant to 4OH-tamoxifen, HER-2/p185 was overexpressed. Pretreatment of these cell lines with Triptorelin or [d-Lys6]GnRH-II completely abolished resistance to 4OH-tamoxifen, assessed by 4OH-tamoxifen-induced apoptosis. Analogs of GnRH-I and GnRH-II counteract EGF-dependent signal transduction in human breast cancer cells with expression of receptors for GnRH-I and GnRH-II. Through this mechanism, they probably reverse acquired resistance to 4OH-tamoxifen mediated through overexpression or activation of receptors of the c-erbB family.

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