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Multihormonal regulation of the human prolactin gene expression from 5000 bp of its upstream sequence
Berwaer, M.; Monget, P.; Peers, Bernard et al.
1991In Molecular and Cellular Endocrinology, 80 (1-3), p. 53-64
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Keywords :
Animals; Base Sequence; Cell Line; Chromosome Walking; Cloning, Molecular; Exons; *Gene Expression Regulation; Humans; Molecular Sequence Data; Prolactin/*genetics; Rats; *Regulatory Sequences, Nucleic Acid; Restriction Mapping; Sequence Homology, Nucleic Acid; Transcription, Genetic
Abstract :
[en] We have cloned DNA sequences extending up to 6000 bp upstream from the first exon of the human prolactin (hPRL) gene. 5000 bp of these upstream sequences were fused to a CAT reporter gene and shown to provide tissue-specific transient expression in rat pituitary GH3 cells. Multihormonal response was found in this transient expression assay, leading to significant 2- to 5-fold induction by addition of 8-chlorophenylthio-cyclic AMP, thyrotropin-releasing hormone, epidermal growth factor, basic fibroblast growth factor, phorbol myristate acetate, a calcium channel agonist (Bay K-8644) and triiodothyronine. A 3-fold inhibition was observed in the presence of the glucocorticoid agonist dexamethasone. The sequence of the hPRL promoter was determined up to coordinate -3470. Computer similarity search between the rat and human sequences showed two highly conserved regions corresponding to the proximal and distal tissue specific enhancers described in both PRL promoters.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Berwaer, M.
Monget, P.
Peers, Bernard ;  Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Mathy, Marianne ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Bellefroid, Eric J.
Davis, J. R.
Belayew, A.
Martial, Joseph ;  Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Language :
English
Title :
Multihormonal regulation of the human prolactin gene expression from 5000 bp of its upstream sequence
Publication date :
1991
Journal title :
Molecular and Cellular Endocrinology
ISSN :
0303-7207
eISSN :
1872-8057
Publisher :
North Holland Publishing Company, Amsterdam, Netherlands
Volume :
80
Issue :
1-3
Pages :
53-64
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 August 2009

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