Abstract
vgf is a neurotrophin response-specific, developmentally regulated gene that codes for a neurosecretory polypeptide. Its transcription in neuronal cells is selectively activated by the neurotrophins nerve growth factor (NGF), brain-derived neurotrophic factor, and neurotrophin 3, which induce survival and differentiation, and not by epidermal growth factor. We studied a short region of the rat vgf promoter which is essential for its regulated expression. A cyclic AMP response element (CRE) within this region is necessary for NGF induction of vgf transcription. Two sites upstream of CRE, an E box and a CCAAT sequence, bind nuclear protein complexes and are involved in transcriptional control. The E box has a dual role. It acts as an inhibitor in NIH 3T3 fibroblasts, together with a second E box located downstream, and as a stimulator in the NGF-responsive cell line PC12. By expression screening, we have isolated the cDNA for a basic helix-loop-helix transcription factor, a homolog of the HTF4/HEB E protein, that specifically binds the vgf promoter E box. The E protein was present in various cell lines, including PC12 cells, and was a component of a multiprotein nuclear complex that hinds the promoter in vitro. The E box and CRE cooperate in binding to this complex, which may be an important determinant for neural cell-specific expression.
| Original language | English |
|---|---|
| Pages (from-to) | 1244-1253 |
| Number of pages | 10 |
| Journal | Molecular and Cellular Biology |
| Volume | 17 |
| Issue number | 3 |
| Publication status | Published - Mar 1997 |
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ASJC Scopus subject areas
- Molecular Biology
- Genetics
- Cell Biology
Cite this
Interplay of the E box, the cyclic AMP response element, and HTF4/HEB in transcriptional regulation of the neurospecific, neurotrophin-inducible vgf gene. / Di Rocco, Giuliana; Pennuto, Maria; Illi, Barbara; Canu, Nadia; Filocamo, Gessica; Trani, Eugenia; Rinaldi, Anna Maria; Possenti, Roberta; Mandolesi, Georgia; Sirinian, M. Isabella; Jucker, Richard; Levi, Andrea; Nasi, Sergio.
In: Molecular and Cellular Biology, Vol. 17, No. 3, 03.1997, p. 1244-1253.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interplay of the E box, the cyclic AMP response element, and HTF4/HEB in transcriptional regulation of the neurospecific, neurotrophin-inducible vgf gene
AU - Di Rocco, Giuliana
AU - Pennuto, Maria
AU - Illi, Barbara
AU - Canu, Nadia
AU - Filocamo, Gessica
AU - Trani, Eugenia
AU - Rinaldi, Anna Maria
AU - Possenti, Roberta
AU - Mandolesi, Georgia
AU - Sirinian, M. Isabella
AU - Jucker, Richard
AU - Levi, Andrea
AU - Nasi, Sergio
PY - 1997/3
Y1 - 1997/3
N2 - vgf is a neurotrophin response-specific, developmentally regulated gene that codes for a neurosecretory polypeptide. Its transcription in neuronal cells is selectively activated by the neurotrophins nerve growth factor (NGF), brain-derived neurotrophic factor, and neurotrophin 3, which induce survival and differentiation, and not by epidermal growth factor. We studied a short region of the rat vgf promoter which is essential for its regulated expression. A cyclic AMP response element (CRE) within this region is necessary for NGF induction of vgf transcription. Two sites upstream of CRE, an E box and a CCAAT sequence, bind nuclear protein complexes and are involved in transcriptional control. The E box has a dual role. It acts as an inhibitor in NIH 3T3 fibroblasts, together with a second E box located downstream, and as a stimulator in the NGF-responsive cell line PC12. By expression screening, we have isolated the cDNA for a basic helix-loop-helix transcription factor, a homolog of the HTF4/HEB E protein, that specifically binds the vgf promoter E box. The E protein was present in various cell lines, including PC12 cells, and was a component of a multiprotein nuclear complex that hinds the promoter in vitro. The E box and CRE cooperate in binding to this complex, which may be an important determinant for neural cell-specific expression.
AB - vgf is a neurotrophin response-specific, developmentally regulated gene that codes for a neurosecretory polypeptide. Its transcription in neuronal cells is selectively activated by the neurotrophins nerve growth factor (NGF), brain-derived neurotrophic factor, and neurotrophin 3, which induce survival and differentiation, and not by epidermal growth factor. We studied a short region of the rat vgf promoter which is essential for its regulated expression. A cyclic AMP response element (CRE) within this region is necessary for NGF induction of vgf transcription. Two sites upstream of CRE, an E box and a CCAAT sequence, bind nuclear protein complexes and are involved in transcriptional control. The E box has a dual role. It acts as an inhibitor in NIH 3T3 fibroblasts, together with a second E box located downstream, and as a stimulator in the NGF-responsive cell line PC12. By expression screening, we have isolated the cDNA for a basic helix-loop-helix transcription factor, a homolog of the HTF4/HEB E protein, that specifically binds the vgf promoter E box. The E protein was present in various cell lines, including PC12 cells, and was a component of a multiprotein nuclear complex that hinds the promoter in vitro. The E box and CRE cooperate in binding to this complex, which may be an important determinant for neural cell-specific expression.
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UR - http://www.scopus.com/inward/citedby.url?scp=0031036627&partnerID=8YFLogxK
M3 - Article
C2 - 9032251
AN - SCOPUS:0031036627
VL - 17
SP - 1244
EP - 1253
JO - Molecular and Cellular Biology
JF - Molecular and Cellular Biology
SN - 0270-7306
IS - 3
ER -