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Lu, A.* ; Steiner, M.A.* ; Whittle, N.* ; Vogl, A.M.* ; Walser, S.M.* ; Ableitner, M.* ; Refojo, D.* ; Ekker, M.* ; Rubenstein, J.L.* ; Stalla, G.K.* ; Singewald, N.* ; Holsboer, F.* ; Wotjak, CT.* ; Wurst, W. ; Deussing, J.M.*

Conditional mouse mutants highlight mechanisms of corticotropin-releasing hormone effects on stress-coping behavior.

Mol. Psychiatry 13, 1028-1042 (2008)
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Hypersecretion of central corticotropin-releasing hormone (CRH) has been implicated in the pathophysiology of affective disorders. Both, basic and clinical studies suggested that disrupting CRH signaling through CRH type 1 receptors (CRH-R1) can ameliorate stress-related clinical conditions. To study the effects of CRH-R1 blockade upon CRH-elicited behavioral and neurochemical changes we created different mouse lines overexpressing CRH in distinct spatially restricted patterns. CRH overexpression in the entire central nervous system, but not when overexpressed in specific forebrain regions, resulted in stress-induced hypersecretion of stress hormones and increased active stress-coping behavior reflected by reduced immobility in the forced swim test and tail suspension test. These changes were related to acute effects of overexpressed CRH as they were normalized by CRH-R1 antagonist treatment and recapitulated the effect of stress-induced activation of the endogenous CRH system. Moreover, we identified enhanced noradrenergic activity as potential molecular mechanism underlying increased active stress-coping behavior observed in these animals. Thus, these transgenic mouse lines may serve as animal models for stress-elicited pathologies and treatments that target the central CRH system.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter corticotropin-releasing hormone; depression; forced swim test; HPA axis; ROSA26; DMP696
Sprache
Veröffentlichungsjahr 2008
HGF-Berichtsjahr 2008
ISSN (print) / ISBN 1359-4184
e-ISSN 1476-5578
Zeitschrift Molecular Psychiatry
Quellenangaben Band: 13, Heft: 11, Seiten: 1028-1042 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Developmental Genetics (IDG)
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-520600-001
DOI 10.1038/mp.2008.51
Scopus ID 54249128702
Erfassungsdatum 2008-12-31
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