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  Expression patterns of promoters for NPY Y1 and Y5 receptors in Y5RitTA and Y1RVenus BAC-transgenic mice

Oberto, A., Acquadro, E., Bus, T., Sprengel, R., & Eva, C. (2007). Expression patterns of promoters for NPY Y1 and Y5 receptors in Y5RitTA and Y1RVenus BAC-transgenic mice. European Journal of Neuroscience: European Neuroscience Association, 26(1), 155-170. doi:10.1111/j.1460-9568.2007.05631.x.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-ACBB-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-ACBC-A
Genre: Journal Article
Alternative Title : Expression patterns of promoters for NPY Y1 and Y5 receptors in Y5RitTA and Y1RVenus BAC-transgenic mice

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EurJNeurosci_26_2007_155.pdf (Any fulltext), 2MB
 
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 Creators:
Oberto, Alessandra, Author
Acquadro, Elena, Author
Bus, Thorsten1, Author              
Sprengel, Rolf2, Author              
Eva, Carola, Author
Affiliations:
1Max Planck Research Group Behavioural Neurophysiology (Andreas T. Schaefer), Max Planck Institute for Medical Research, Max Planck Society, ou_1497722              
2Department of Molecular Neurobiology, Max Planck Institute for Medical Research, Max Planck Society, ou_1497704              

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Free keywords: tetracycline controlled transactivator; transgenic mice; Venus fluorescent protein; Y1 receptor for Neuropeptide Y; Y5 receptor for Neuropeptide Y
 Abstract: In the rat brain, neuropeptide Y (NPY) Y(1) and Y(5) receptors are coexpressed in various forebrain regions where they mediate several NPY-activated functions, including feeding behaviour, anxiety, neuronal excitability and hormone secretion. We studied the distribution pattern and cellular colocalization of the Y(1) and the Y(5) receptor gene expression in the mouse brain by using transgenic mice with genomically integrated BAC clones, where the coding regions of the Y(1) and Y(5) receptor genes were replaced by Venus and the synthetic transcription factor itTA reporter genes, respectively (Tg(Y5RitTA/Y1RVenus) mice). Analysis of Venus fluorescence and itTA-mediated activation of Cre recombinase revealed copy number-dependent expression levels, between the lines, but similar expression patterns. In three transgenic lines the BAC encoded Y(5) receptor promoter induced strong Cre expression in the olfactory system, cerebral cortex, hippocampus and basal ganglia. Weaker expression was found in most of the hypothalamic nuclei of line 25, the highest-expressing transgenic line. Activation of Cre was itTA-dependent and could be regulated by doxycycline. The Y(1) receptor promoter-induced Venus fluorescence was intense, widely present through the brain and colocalized with Cre immunostaining in neurons of distinct brain regions, including the cerebral cortex, basolateral amygdala, dentate gyrus and paraventricular nucleus. These data provide a detailed and comparative mapping of Y(1) and Y(5) receptor promoter activity within cells of the mouse brain. The Tg(Y5RitTA/Y1RVenus)-transgenic mice generated here also represent a genetic tool for conditional mutagenesis via the Cre lox system, particularly of genes involved in feeding behaviour, neuronal excitability and hormone secretion.

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Language(s): eng - English
 Dates: 2007-05-082007-02-222007-05-142007-07-032007-07-03
 Publication Status: Published in print
 Pages: 16
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Degree: -

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Title: European Journal of Neuroscience : European Neuroscience Association
  Other : Eur. J. Neurosci
Source Genre: Journal
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Publ. Info: Oxford, UK : Published on behalf of the European Neuroscience Association by Oxford University Press
Pages: - Volume / Issue: 26 (1) Sequence Number: - Start / End Page: 155 - 170 Identifier: ISSN: 0953-816X
CoNE: /journals/resource/954925575988