Inducible Gene Manipulations in Brain Serotonergic Neurons of Transgenic Rats

Verfasser / Beitragende:
[Tillmann Weber, Kai Schönig, Björn Tews, Dusan Bartsch]
Ort, Verlag, Jahr:
2011
Enthalten in:
PLoS ONE, 6 (11), p. e28283
Format:
Artikel (online)
ID: 528786946
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024 7 0 |a 10.3929/ethz-b-000045282  |2 doi 
024 7 0 |a 10.1371/journal.pone.0028283  |2 doi 
035 |a (ETHRESEARCH)oai:www.research-collecti.ethz.ch:20.500.11850/45282 
245 0 0 |a Inducible Gene Manipulations in Brain Serotonergic Neurons of Transgenic Rats  |h [Elektronische Daten]  |c [Tillmann Weber, Kai Schönig, Björn Tews, Dusan Bartsch] 
246 0 |a PLoS ONE 
506 |a Open access  |2 ethresearch 
520 3 |a The serotonergic (5-HT) system has been implicated in various physiological processes and neuropsychiatric disorders, but in many aspects its role in normal and pathologic brain function is still unclear. One reason for this might be the lack of appropriate animal models which can address the complexity of physiological and pathophysiological 5-HT functioning. In this respect, rats offer many advantages over mice as they have been the animal of choice for sophisticated neurophysiological and behavioral studies. However, only recently technologies for the targeted and tissue specific modification of rat genes - a prerequisite for a detailed study of the 5-HT system - have been successfully developed. Here, we describe a rat transgenic system for inducible gene manipulations in 5-HT neurons. We generated a Cre driver line consisting of a tamoxifen-inducible CreERT2 recombinase under the control of mouse Tph2 regulatory sequences. Tissue-specific serotonergic Cre recombinase expression was detected in four transgenic TPH2-CreERT2 rat founder lines. For functional analysis of Cre-mediated recombination, we used a rat Cre reporter line (CAG-loxP.EGFP), in which EGFP is expressed after Cre-mediated removal of a loxP-flanked lacZ STOP cassette. We show an in-depth characterisation of this rat Cre reporter line and demonstrate its applicability for monitoring Cre-mediated recombination in all major neuronal subpopulations of the rat brain. Upon tamoxifen induction, double transgenic TPH2-CreERT2/CAG-loxP.EGFP rats show selective and efficient EGFP expression in 5-HT neurons. Without tamoxifen administration, EGFP is only expressed in few 5-HT neurons which confirms minimal background recombination. This 5-HT neuron specific CreERT2 line allows Cre-mediated, inducible gene deletion or gene overexpression in transgenic rats which provides new opportunities to decipher the complex functions of the mammalian serotonergic system. 
540 |a Creative Commons Attribution 3.0 Unported  |u http://creativecommons.org/licenses/by/3.0  |2 ethresearch 
700 1 |a Weber  |D Tillmann  |e joint author 
700 1 |a Schönig  |D Kai  |e joint author 
700 1 |a Tews  |D Björn  |e joint author 
700 1 |a Bartsch  |D Dusan  |e joint author 
773 0 |t PLoS ONE  |d s.l. : Public Library of Science  |g 6 (11), p. e28283  |x 1932-6203 
856 4 0 |u http://hdl.handle.net/20.500.11850/45282  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
908 |D 1  |a Journal Article  |2 ethresearch 
950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/45282  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Weber  |D Tillmann  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Schönig  |D Kai  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Tews  |D Björn  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Bartsch  |D Dusan  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t PLoS ONE  |d s.l. : Public Library of Science  |g 6 (11), p. e28283  |x 1932-6203 
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949 |B ETHRESEARCH  |F ETHRESEARCH  |b ETHRESEARCH  |j Journal Article  |c Open access