Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation
In order to test the hypothesis that transforming growth factor β (TGF-β) acts by FS regulation on bovine granulosa cells in in vitro differentiation, we analyzed the effect of TGF-β1 on follistatin mRNA expression in three differentiation states of bovine granulosa cells. We showed a positive regul...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219541_v207_n1_p40_Fazzini http://hdl.handle.net/20.500.12110/paper_00219541_v207_n1_p40_Fazzini |
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paper:paper_00219541_v207_n1_p40_Fazzini2023-06-08T14:43:47Z Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation activin activin A activin receptor 2 activin receptor 2A follistatin messenger RNA progesterone transforming growth factor beta transforming growth factor beta1 unclassified drug animal cell article cell differentiation cell maturation cell size controlled study cow granulosa cell in vitro study nonhuman ovary follicle priority journal progesterone synthesis steady state Activin Receptors, Type II Activins Animals Binding, Competitive Cattle Cell Differentiation Cell Line Cells, Cultured Culture Media, Conditioned Female Fibronectins Follistatin Gene Expression Granulosa Cells Humans Inhibin-beta Subunits Progesterone Receptors, Transforming Growth Factor beta Reverse Transcriptase Polymerase Chain Reaction RNA, Messenger Transforming Growth Factor beta Transforming Growth Factor beta1 Animalia Bovinae In order to test the hypothesis that transforming growth factor β (TGF-β) acts by FS regulation on bovine granulosa cells in in vitro differentiation, we analyzed the effect of TGF-β1 on follistatin mRNA expression in three differentiation states of bovine granulosa cells. We showed a positive regulation of FS mRNA after TGF-β1 (1 ng/ml) treatment of freshly isolated granulosa cells from small-medium antral follicles (2-8 mm). This effect was abolished by the addition of exogenous follistatin (100 ng/ml), suggesting that this effect could be mediated by activin. Although these cells showed a similar effect on FS mRNA expression after treatment with activin-A, a soluble form of activin receptor type IIA was unable to inactivate the TGF-β effect. When we tested the TGF-β effect on FS mRNA in different granulosa cell states, TGF-β1 regulation was associated with progesterone production only in freshly isolated cells. The amount of total activin-A produced by first passage cells (dedifferentiated cells), was ten times smaller than the one measured in a conditioned medium from freshly isolated cells (mature cells). The TGF-β1-dependent FS mRNA expression persisted in first passage cells without changes with FS addition. On the other hand, the BGC-1 granulosa cell line (immature cells) produced large amounts of activin-A regulated by TGF-β1 and an invariable steady state of FS mRNAs. In summary, our results showed that FS mRNA expression is regulated by TGF-β1 independently of activin effects in differentiated granulosa cells. © 2005 Wiley-Liss, Inc. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219541_v207_n1_p40_Fazzini http://hdl.handle.net/20.500.12110/paper_00219541_v207_n1_p40_Fazzini |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
activin activin A activin receptor 2 activin receptor 2A follistatin messenger RNA progesterone transforming growth factor beta transforming growth factor beta1 unclassified drug animal cell article cell differentiation cell maturation cell size controlled study cow granulosa cell in vitro study nonhuman ovary follicle priority journal progesterone synthesis steady state Activin Receptors, Type II Activins Animals Binding, Competitive Cattle Cell Differentiation Cell Line Cells, Cultured Culture Media, Conditioned Female Fibronectins Follistatin Gene Expression Granulosa Cells Humans Inhibin-beta Subunits Progesterone Receptors, Transforming Growth Factor beta Reverse Transcriptase Polymerase Chain Reaction RNA, Messenger Transforming Growth Factor beta Transforming Growth Factor beta1 Animalia Bovinae |
| spellingShingle |
activin activin A activin receptor 2 activin receptor 2A follistatin messenger RNA progesterone transforming growth factor beta transforming growth factor beta1 unclassified drug animal cell article cell differentiation cell maturation cell size controlled study cow granulosa cell in vitro study nonhuman ovary follicle priority journal progesterone synthesis steady state Activin Receptors, Type II Activins Animals Binding, Competitive Cattle Cell Differentiation Cell Line Cells, Cultured Culture Media, Conditioned Female Fibronectins Follistatin Gene Expression Granulosa Cells Humans Inhibin-beta Subunits Progesterone Receptors, Transforming Growth Factor beta Reverse Transcriptase Polymerase Chain Reaction RNA, Messenger Transforming Growth Factor beta Transforming Growth Factor beta1 Animalia Bovinae Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation |
| topic_facet |
activin activin A activin receptor 2 activin receptor 2A follistatin messenger RNA progesterone transforming growth factor beta transforming growth factor beta1 unclassified drug animal cell article cell differentiation cell maturation cell size controlled study cow granulosa cell in vitro study nonhuman ovary follicle priority journal progesterone synthesis steady state Activin Receptors, Type II Activins Animals Binding, Competitive Cattle Cell Differentiation Cell Line Cells, Cultured Culture Media, Conditioned Female Fibronectins Follistatin Gene Expression Granulosa Cells Humans Inhibin-beta Subunits Progesterone Receptors, Transforming Growth Factor beta Reverse Transcriptase Polymerase Chain Reaction RNA, Messenger Transforming Growth Factor beta Transforming Growth Factor beta1 Animalia Bovinae |
| description |
In order to test the hypothesis that transforming growth factor β (TGF-β) acts by FS regulation on bovine granulosa cells in in vitro differentiation, we analyzed the effect of TGF-β1 on follistatin mRNA expression in three differentiation states of bovine granulosa cells. We showed a positive regulation of FS mRNA after TGF-β1 (1 ng/ml) treatment of freshly isolated granulosa cells from small-medium antral follicles (2-8 mm). This effect was abolished by the addition of exogenous follistatin (100 ng/ml), suggesting that this effect could be mediated by activin. Although these cells showed a similar effect on FS mRNA expression after treatment with activin-A, a soluble form of activin receptor type IIA was unable to inactivate the TGF-β effect. When we tested the TGF-β effect on FS mRNA in different granulosa cell states, TGF-β1 regulation was associated with progesterone production only in freshly isolated cells. The amount of total activin-A produced by first passage cells (dedifferentiated cells), was ten times smaller than the one measured in a conditioned medium from freshly isolated cells (mature cells). The TGF-β1-dependent FS mRNA expression persisted in first passage cells without changes with FS addition. On the other hand, the BGC-1 granulosa cell line (immature cells) produced large amounts of activin-A regulated by TGF-β1 and an invariable steady state of FS mRNAs. In summary, our results showed that FS mRNA expression is regulated by TGF-β1 independently of activin effects in differentiated granulosa cells. © 2005 Wiley-Liss, Inc. |
| title |
Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation |
| title_short |
Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation |
| title_full |
Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation |
| title_fullStr |
Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation |
| title_full_unstemmed |
Transforming growth factor β1 regulates follistatin mRNA expression during in vitro bovine granulosa cell differentiation |
| title_sort |
transforming growth factor β1 regulates follistatin mrna expression during in vitro bovine granulosa cell differentiation |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219541_v207_n1_p40_Fazzini http://hdl.handle.net/20.500.12110/paper_00219541_v207_n1_p40_Fazzini |
| _version_ |
1768544537004736512 |