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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Co-operation of progestational steroids with epidermal growth factor in activation of gene expression in mammary tumor cells.

The progesterone receptor belongs to a class of ligand binding transcription factors that regulate transcription by interacting with specific DNA sequences on hormone regulated genes. In human mammary tumor T47D cells that contain both progesterone and epidermal growth factor (EGF) receptors, the progestin-induced transactivation at various hormone regulated promoters is enhanced by EGF. The effect of EGF is rapid and does not require new protein synthesis. EGF treatment does not alter the DNA binding activity of the progesterone receptor nor does it affect the total ligand-dependent phosphorylation of this receptor. These results suggest that EGF enhances the transactivation property of the progesterone receptor through mechanisms other than those involving a direct interaction of this receptor with its cognate binding sites.[1]

References

  1. Co-operation of progestational steroids with epidermal growth factor in activation of gene expression in mammary tumor cells. Krusekopf, S., Chauchereau, A., Milgrom, E., Henderson, D., Cato, A.C. J. Steroid Biochem. Mol. Biol. (1991) [Pubmed]
 
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