Identification of cis-elements and transcription factors regulating neuronal activity-dependent transcription of human BDNF gene. 2011

Priit Pruunsild, and Mari Sepp, and Ester Orav, and Indrek Koppel, and Tõnis Timmusk
Institute of Gene Technology, Tallinn University of Technology, 12618 Tallinn, Estonia. priit.pruunsild@ttu.ee

Brain-derived neurotrophic factor (BDNF) is an important mediator of activity-dependent functions of the nervous system and its expression is dysregulated in several neuropsychiatric disorders. Regulation of rodent BDNF neuronal activity-dependent transcription has been relatively well characterized. Here, we have studied regulation of human BDNF (hBDNF) transcription by membrane depolarization of cultured mouse or rat primary cortical neurons expressing hBDNF gene or transfected with hBDNF promoter constructs, respectively. We identified an asymmetric E-box-like element, PasRE [basic helix-loop-helix (bHLH)-PAS transcription factor response element], in hBDNF promoter I and demonstrate that binding of this element by bHLH-PAS transcription factors ARNT2 (aryl hydrocarbon receptor nuclear translocator 2) and NPAS4 (neuronal PAS domain protein 4) is crucial for neuronal activity-dependent transcription from promoter I. We show that binding of CREB (cAMP response element-binding protein) to the cAMP/Ca(2+)-response element (CRE) in hBDNF promoter IV is critical for activity-dependent transcription from this promoter and that upstream stimulatory factor (USF) transcription factors also contribute to the activation by binding to the upstream stimulatory factor binding element (UBE) in hBDNF promoter IV. However, we report that full induction of hBDNF exon IV mRNA transcription is dependent on ARNT2 and NPAS4 binding to a PasRE in promoter IV. Finally, we demonstrate that CRE and PasRE elements in hBDNF promoter IX are required for the induction of this promoter by neuronal activity. Together, the results of this study have identified the cis-elements and transcription factors regulating neuronal activity-dependent transcription of human BDNF gene.

UI MeSH Term Description Entries
D008297 Male Males
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D011401 Promoter Regions, Genetic DNA sequences which are recognized (directly or indirectly) and bound by a DNA-dependent RNA polymerase during the initiation of transcription. Highly conserved sequences within the promoter include the Pribnow box in bacteria and the TATA BOX in eukaryotes. rRNA Promoter,Early Promoters, Genetic,Late Promoters, Genetic,Middle Promoters, Genetic,Promoter Regions,Promoter, Genetic,Promotor Regions,Promotor, Genetic,Pseudopromoter, Genetic,Early Promoter, Genetic,Genetic Late Promoter,Genetic Middle Promoters,Genetic Promoter,Genetic Promoter Region,Genetic Promoter Regions,Genetic Promoters,Genetic Promotor,Genetic Promotors,Genetic Pseudopromoter,Genetic Pseudopromoters,Late Promoter, Genetic,Middle Promoter, Genetic,Promoter Region,Promoter Region, Genetic,Promoter, Genetic Early,Promoter, rRNA,Promoters, Genetic,Promoters, Genetic Middle,Promoters, rRNA,Promotor Region,Promotors, Genetic,Pseudopromoters, Genetic,Region, Genetic Promoter,Region, Promoter,Region, Promotor,Regions, Genetic Promoter,Regions, Promoter,Regions, Promotor,rRNA Promoters
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D002462 Cell Membrane The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells. Plasma Membrane,Cytoplasmic Membrane,Cell Membranes,Cytoplasmic Membranes,Membrane, Cell,Membrane, Cytoplasmic,Membrane, Plasma,Membranes, Cell,Membranes, Cytoplasmic,Membranes, Plasma,Plasma Membranes
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D004742 Enhancer Elements, Genetic Cis-acting DNA sequences which can increase transcription of genes. Enhancers can usually function in either orientation and at various distances from a promoter. Enhancer Elements,Enhancer Sequences,Element, Enhancer,Element, Genetic Enhancer,Elements, Enhancer,Elements, Genetic Enhancer,Enhancer Element,Enhancer Element, Genetic,Enhancer Sequence,Genetic Enhancer Element,Genetic Enhancer Elements,Sequence, Enhancer,Sequences, Enhancer
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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