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Hölter, S.M. ; Stromberg, M.* ; Kovalenko, M.* ; Garrett, L. ; Glasl, L. ; Lopez, E.* ; Guide, J.* ; Götz, A. ; Hans, W. ; Becker, L. ; Rathkolb, B. ; Rozman, J. ; Schrewe, A.* ; Klingenspor, M.* ; Klopstock, T.* ; Schulz, H. ; Wolf, E.* ; Wurst, W. ; Gillis, T.* ; Wakimoto, H.* ; Seidmann, J.* ; MacDonald, M.E.* ; Cotman, S.L.* ; Gailus-Durner, V. ; Fuchs, H. ; Hrabě de Angelis, M. ; Lee, J.M.* ; Wheeler, V.C.*

A broad phenotypic screen identifies novel phenotypes driven by a single mutant allele in Huntington’s diesease CAG knock-in mice.

PLoS ONE 8:e80923 (2013)
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Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder caused by the expansion of a CAG trinucleotide repeat in the HTT gene encoding huntingtin. The disease has an insidious course, typically progressing over 10-15 years until death. Currently there is no effective disease-modifying therapy. To better understand the HD pathogenic process we have developed genetic HTT CAG knock-in mouse models that accurately recapitulate the HD mutation in man. Here, we describe results of a broad, standardized phenotypic screen in 10-46 week old heterozygous HdhQ111 knock-in mice, probing a wide range of physiological systems. The results of this screen revealed a number of behavioral abnormalities in HdhQ111/+ mice that include hypoactivity, decreased anxiety, motor learning and coordination deficits, and impaired olfactory discrimination. The screen also provided evidence supporting subtle cardiovascular, lung, and plasma metabolite alterations. Importantly, our results reveal that a single mutant HTT allele in the mouse is sufficient to elicit multiple phenotypic abnormalities, consistent with a dominant disease process in patients. These data provide a starting point for further investigation of several organ systems in HD, for the dissection of underlying pathogenic mechanisms and for the identification of reliable phenotypic endpoints for therapeutic testing.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Transgenic Mouse Model ; Early Alzheimers-disease ; Neural Stem-cells ; Long-term-memory ; Repeat Instability ; Glucose-tolerance ; Behavioral Abnormalities ; Polyglutamine Inclusions ; Olfactory Discrimination ; Hippocampal Neurogenesis
Sprache englisch
Veröffentlichungsjahr 2013
HGF-Berichtsjahr 2013
ISSN (print) / ISBN 1932-6203
Zeitschrift PLoS ONE
Quellenangaben Band: 8, Heft: 11, Seiten: , Artikelnummer: e80923 Supplement: ,
Verlag Public Library of Science (PLoS)
Verlagsort Lawrence, Kan.
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Developmental Genetics (IDG)
Institute of Experimental Genetics (IEG)
Institute of Epidemiology (EPI)
Institute of Lung Health and Immunity (LHI)
POF Topic(s) 30204 - Cell Programming and Repair
30201 - Metabolic Health
30503 - Chronic Diseases of the Lung and Allergies
30202 - Environmental Health
90000 - German Center for Diabetes Research
Forschungsfeld(er) Genetics and Epidemiology
Lung Research
PSP-Element(e) G-500500-001
G-500600-001
G-500600-003
G-503900-003
G-505000-001
G-501900-063
PubMed ID 24278347
DOI 10.1371/journal.pone.0080923
WOS ID WOS:000327541700037
Scopus ID 84894379134
Erfassungsdatum 2013-11-25
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