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Jia JJ, Zeng XS, Yang LH, Bai J. The epinephrine increases tyrosine hydroxylase expression through upregulating thioredoxin-1 in PC12 cells. Biochimie 2015; 115:52-8. [PMID: 25957836 DOI: 10.1016/j.biochi.2015.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 04/27/2015] [Indexed: 11/20/2022]
Abstract
Epinephrine is a stress hormone which is sharply increased in response to acute stress and is continuously elevated during persistent stress. Thioredoxin-1 (Trx-1) is a redox regulating protein and is induced under various stresses. Our previous study has shown that epinephrine induces the expression of Trx-1. Tyrosine hydroxylase (TH) is the major rate-limiting enzyme in catecholamine biosynthesis in response to stress. However, how TH is regulated by epinephrine is still unknown. In the present study, we found that epinephrine increased the expression of TH in a dose- and time-dependent manner in PC12 cells, which was inhibited by propranolol (β-adrenergic receptor inhibitor), but not by phenoxybenzamine (α-adrenergic receptor inhibitor). The increase of TH was also inhibited by SQ22536 (adenylyl cyclase inhibitor), H-89(PKA inhibitor) and LY294002 (phosphatidylinositol 3 kinase inhibitor). More importantly, overexpression of Trx-1 significantly enhanced the expression of TH, while Trx-1 siRNA suppressed TH expression induced by epinephrine. These results suggest that Trx-1 is involved in TH expression induced by epinephrine in PC12 cells.
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Affiliation(s)
- Jin-Jing Jia
- Laboratory of Molecular Neurobiology, Medical Faculty, Kunming University of Science and Technology, Kunming 650500, China
| | - Xian-Si Zeng
- Laboratory of Molecular Neurobiology, Medical Faculty, Kunming University of Science and Technology, Kunming 650500, China
| | - Li-Hua Yang
- Laboratory of Molecular Neurobiology, Medical Faculty, Kunming University of Science and Technology, Kunming 650500, China
| | - Jie Bai
- Laboratory of Molecular Neurobiology, Medical Faculty, Kunming University of Science and Technology, Kunming 650500, China.
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3
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Wang M, Banerjee K, Baker H, Cave JW. Nucleotide sequence conservation of novel and established cis-regulatory sites within the tyrosine hydroxylase gene promoter. ACTA ACUST UNITED AC 2014; 10:74-90. [PMID: 25774193 DOI: 10.1007/s11515-014-1341-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Tyrosine hydroxylase (TH) is the rate-limiting enzyme in catecholamine biosynthesis and its gene proximal promoter ( < 1 kb upstream from the transcription start site) is essential for regulating transcription in both the developing and adult nervous systems. Several putative regulatory elements within the TH proximal promoter have been reported, but evolutionary conservation of these elements has not been thoroughly investigated. Since many vertebrate species are used to model development, function and disorders of human catecholaminergic neurons, identifying evolutionarily conserved transcription regulatory mechanisms is a high priority. In this study, we align TH proximal promoter nucleotide sequences from several vertebrate species to identify evolutionarily conserved motifs. This analysis identified three elements (a TATA box, cyclic AMP response element (CRE) and a 5'-GGTGG-3' site) that constitute the core of an ancient vertebrate TH promoter. Focusing on only eutherian mammals, two regions of high conservation within the proximal promoter were identified: a ∼250 bp region adjacent to the transcription start site and a ∼85 bp region located approximately 350 bp further upstream. Within both regions, conservation of previously reported cis-regulatory motifs and human single nucleotide variants was evaluated. Transcription reporter assays in a TH -expressing cell line demonstrated the functionality of highly conserved motifs in the proximal promoter regions and electromobility shift assays showed that brain-region specific complexes assemble on these motifs. These studies also identified a non-canonical CRE binding (CREB) protein recognition element in the proximal promoter. Together, these studies provide a detailed analysis of evolutionary conservation within the TH promoter and identify potential cis-regulatory motifs that underlie a core set of regulatory mechanisms in mammals.
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Affiliation(s)
- Meng Wang
- Burke Medical Research Institute, White Plains, NY 10605, USA
| | | | - Harriet Baker
- Burke Medical Research Institute, White Plains, NY 10605, USA ; Weill Cornell Medical College Brain and Mind Research Institute, NY 10065, USA
| | - John W Cave
- Burke Medical Research Institute, White Plains, NY 10605, USA ; Weill Cornell Medical College Brain and Mind Research Institute, NY 10065, USA
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4
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Bovetti S, Bonzano S, Garzotto D, Giannelli SG, Iannielli A, Armentano M, Studer M, De Marchis S. COUP-TFI controls activity-dependent tyrosine hydroxylase expression in adult dopaminergic olfactory bulb interneurons. Development 2013; 140:4850-9. [DOI: 10.1242/dev.089961] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
COUP-TFI is an orphan nuclear receptor acting as a strong transcriptional regulator in different aspects of forebrain embryonic development. In this study, we investigated COUP-TFI expression and function in the mouse olfactory bulb (OB), a highly plastic telencephalic region in which continuous integration of newly generated inhibitory interneurons occurs throughout life. OB interneurons belong to different populations that originate from distinct progenitor lineages. Here, we show that COUP-TFI is highly expressed in tyrosine hydroxylase (TH)-positive dopaminergic interneurons in the adult OB glomerular layer (GL). We found that odour deprivation, which is known to downregulate TH expression in the OB, also downregulates COUP-TFI in dopaminergic cells, indicating a possible correlation between TH- and COUP-TFI-activity-dependent action. Moreover, we demonstrate that conditional inactivation of COUP-TFI in the EMX1 lineage results in a significant reduction of both TH and ZIF268 expression in the GL. Finally, lentiviral vector-mediated COUP-TFI deletion in adult-generated interneurons confirmed that COUP-TFI acts cell-autonomously in the control of TH and ZIF268 expression. These data indicate that COUP-TFI regulates TH expression in OB cells through an activity-dependent mechanism involving ZIF268 induction and strongly argue for a maintenance rather than establishment function of COUP-TFI in dopaminergic commitment. Our study reveals a previously unknown role for COUP-TFI in the adult brain as a key regulator in the control of sensory-dependent plasticity in olfactory dopaminergic neurons.
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Affiliation(s)
- Serena Bovetti
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Sara Bonzano
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gerzole 10, 10043, Orbassano, Italy
| | - Donatella Garzotto
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Serena Gea Giannelli
- San Raffaele Telethon Institute for Gene Therapy (HSR-TIGET), Division of Regenerative Medicine, Stem Cells, and Gene Therapy, San Raffaele Scientific Institute, Via Olgettina28, 20132, Milano, Italy
| | - Angelo Iannielli
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gerzole 10, 10043, Orbassano, Italy
| | - Maria Armentano
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gerzole 10, 10043, Orbassano, Italy
- Telethon Institute of Genetics and Medicine (TIGEM), Via P. Castellino 111, 80131, Napoli, Italy
| | - Michèle Studer
- Telethon Institute of Genetics and Medicine (TIGEM), Via P. Castellino 111, 80131, Napoli, Italy
- University of Nice Sophia-Antipolis, Parc Valrose, 28 Avenue Valrose, F-06108 Nice, France
- INSERM UMR 1091, Parc Valrose, 28 Avenue Valrose, F-06108 Nice, France
| | - Silvia De Marchis
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gerzole 10, 10043, Orbassano, Italy
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5
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Kress S, Wullimann MF. Correlated basal expression of immediate early gene egr1 and tyrosine hydroxylase in zebrafish brain and downregulation in olfactory bulb after transitory olfactory deprivation. J Chem Neuroanat 2012; 46:51-66. [DOI: 10.1016/j.jchemneu.2012.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 09/10/2012] [Accepted: 09/11/2012] [Indexed: 02/02/2023]
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6
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Ganesh A, Bogdanowicz W, Balamurugan K, Ragu Varman D, Rajan KE. Egr-1 antisense oligodeoxynucleotide administration into the olfactory bulb impairs olfactory learning in the greater short-nosed fruit bat Cynopterus sphinx. Brain Res 2012; 1471:33-45. [PMID: 22796292 DOI: 10.1016/j.brainres.2012.06.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 06/08/2012] [Accepted: 06/25/2012] [Indexed: 11/26/2022]
Abstract
Postsynaptic densities (PSDs) contain proteins that regulate synaptic transmission. We examined two important examples of these, calcium/calmodulin-dependent protein kinase II (CaMKII) and PSD-95, in regard to the functional role of early growth response gene-1 (egr-1) in regulation of olfactory learning in the greater short-nosed fruit bat Cynopterus sphinx (family Pteropodidae). To test whether activation of egr-1 in the olfactory bulb (OB) is required for olfactory memory of these bats, bilaterally canulated individuals were infused with antisense (AS) or non-sense (NS)-oligodeoxynucleotides (ODN) of egr-1, or with phosphate buffer saline (PBS), 2h before the olfactory training. Our results showed that behavioral training significantly up-regulates immediate early gene (IEG) EGR-1 and key synaptic proteins Synaptotagmin-1(SYT-1), CaMKII and PSD-95, and phosphorylation of CaMKII in the OB at the protein level per se. Subsequently, we observed that egr-1 antisense-ODN infusion in the OB impaired olfactory memory and down regulates the expression of CaMKII and PSD-95, and the phosphorylation of CaMKII but not SYT-1. In contrast, NS-ODN or PBS had no effect on the expression of the PSDs CaMKII or PSD-95, or on the phosphorylation of CaMKII. When the egr-1 NS-ODN was infused in the OB after training for the novel odor there was no effect on olfactory memory. These findings suggest that egr-1 control the activation of CaMKII and PSD-95 during the process of olfactory memory formation.
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Affiliation(s)
- Ambigapathy Ganesh
- Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620024, India
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