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Characterization of phorbolester-inducible human neuronal factors involved in trans-activation of the galanin gene
Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet, Stockholm, Sweden.
1998 (English)In: Biochemical and Biophysical Research Communications - BBRC, ISSN 0006-291X, E-ISSN 1090-2104, Vol. 246, no 1, 192-198 p.Article in journal (Refereed) Published
Abstract [en]

The expression of the neuropeptide galanin (GAL) is elevated in vivo upon nerve stimulation, injury, and in vitro by phorbol 12-myristate-13-acetate (PMA), suggesting that a signal pathway involving protein kinase C activation may be involved in GAL-gene activation. When plasmids containing a different length of the bovine GAL-promoter fused to luciferase were transfected into the human neuroblastoma cell line (SK-N-SH subclone SH-SY5Y), a PMA-responsive element was identified in the promoter-region -68 to -46 base pairs (bp). Co-transfection experiments with plasmids expressing cJun and cFos revealed that they could act alone, as well as synergistically with PMA to induce luciferase activity. Electrical mobility shift assays revealed that a cAMP response element (CRE)-like sequence (TGACGCGG; -59 to -52 bp) bound PMA-inducible nuclear proteins present in SH-SY5Y cells. These proteins appear to bind mainly as CRE-binding protein/activating-transcription-factor (CREB/ATF) and Jun/ATF heterodimers. In addition, an apparent PMA-inducible protein(s) not recognized by CREB/ATF and Jun antibodies bound to the CRE-like containing probe.

Place, publisher, year, edition, pages
Elsevier, 1998. Vol. 246, no 1, 192-198 p.
National Category
Medical and Health Sciences
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URN: urn:nbn:se:liu:diva-98834DOI: 10.1006/bbrc.1998.8591PubMedID: 9600091OAI: oai:DiVA.org:liu-98834DiVA: diva2:655976
Available from: 2013-10-14 Created: 2013-10-14 Last updated: 2017-12-06Bibliographically approved

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Spyrou, Giannis

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