Article (Scientific journals)
Gender-specific expression of ubiquitin-specific peptidase 9 modulates tau expression and phosphorylation: possible implications for tauopathies
Köglsberger, Sandra; Cordero Maldonado, Maria Lorena; Antony, Paul et al.
2017In Molecular Neurobiology, 54 (10), p. 7979–7993
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The original publication is available at http://link.springer.com/article/10.1007/s12035-016-0299-z


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Keywords :
Alzheimer's disease; gender differences; ubiquitin; tau; neurodegeneration; USP9; microarray; zebrafish; DU145; gene expression; alpha-synuclein; GSK3B; MARK4; transcriptomics; tauopathies
Abstract :
[en] Public transcriptomics studies have shown that several genes display pronounced gender differences in their expression in the human brain, which may influence the manifestations and risk for neuronal disorders. Here we apply a transcriptome-wide analysis to discover genes with gender-specific expression and significant alterations in public post mortem brain tissue from Alzheimer’s disease (AD) patients compared to controls. We identify the sex-linked ubiquitin specific peptidase 9 (USP9) as an outstanding candidate gene with highly significant expression differences between the genders and male-specific under-expression in AD. Since previous studies have shown that USP9 can modulate the phosphorylation of the AD-associated protein MAPT, we investigate functional associations between USP9 and MAPT in further detail. After observing a high positive correlation between the expression of USP9 and MAPT in the public transcriptomics data, we show that USP9 knockdown results in significantly decreased MAPT expression in a DU145 cell culture model and a concentration-dependent decrease for the MAPT orthologs mapta and maptb in a zebrafish model. From the analysis of microarray and qRT-PCR experiments for the knockdown in DU145 cells and prior knowledge from the literature, we derive a data-congruent model for a USP9-dependent regulatory mechanism modulating MAPT expression via BACH1 and SMAD4. Overall, the analyses suggest USP9 may contribute to molecular gender differences observed in tauopathies and provide a new target for intervention strategies to modulate MAPT expression.
Research center :
- Luxembourg Centre for Systems Biomedicine (LCSB): Biomedical Data Science (Glaab Group)
Disciplines :
Biotechnology
Neurology
Life sciences: Multidisciplinary, general & others
Author, co-author :
Köglsberger, Sandra ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Cordero Maldonado, Maria Lorena ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Antony, Paul ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Forster, Julia ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Garcia, Pierre  ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Buttini, Manuel ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Crawford, Alexander Dettmar ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
Glaab, Enrico  ;  University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB)
External co-authors :
no
Language :
English
Title :
Gender-specific expression of ubiquitin-specific peptidase 9 modulates tau expression and phosphorylation: possible implications for tauopathies
Publication date :
December 2017
Journal title :
Molecular Neurobiology
ISSN :
1559-1182
Publisher :
Humana Press, United States
Volume :
54
Issue :
10
Pages :
7979–7993
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Systems Biomedicine
Name of the research project :
R-AGR-0361 - Geoffrey Beene Alzheimer project (20140101-20141231) - SCHNEIDER Reinhard
Funders :
Fondation Wivine Luxembourg
Geoffrey Been Alzheimer’s Initiative and BrightFocus Foundation
Available on ORBilu :
since 12 November 2016

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