Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?

Within the cell nucleus the nucleolus is the site of rRNA transcription and ribosome biogenesis and its activity is clearly essential for a correct cell function, however its specific role in neuronal homeostasis remains mainly unknown. Here we review recent evidence that impaired nucleolar activity...

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Main Authors: Rosanna Parlato, Holger Bierhoff
Format: Article
Language:English
Published: AIMS Press 2015-05-01
Series:AIMS Molecular Science
Subjects:
Online Access:http://www.aimspress.com/Molecular/article/313/fulltext.html
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author Rosanna Parlato
Holger Bierhoff
author_facet Rosanna Parlato
Holger Bierhoff
author_sort Rosanna Parlato
collection DOAJ
description Within the cell nucleus the nucleolus is the site of rRNA transcription and ribosome biogenesis and its activity is clearly essential for a correct cell function, however its specific role in neuronal homeostasis remains mainly unknown. Here we review recent evidence that impaired nucleolar activity is a common mechanism in different neurodegenerative disorders. We focus on the specific causes and consequences of impaired nucleolar activity to better understand the pathogenesis of neurodegenerative disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and amyotrophic lateral sclerosis/frontotemporal dementia (ALS/FTD). In particular, we discuss the genetic and epigenetic factors that might regulate nucleolar function in these diseases. In addition, we describe novel animal models enabling the dissection of the context-specific series of events triggered by nucleolar disruption, also known as nucleolar stress. Finally, we suggest how this novel mechanism could help to identify strategies to treat these still incurable disorders.
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spelling doaj.art-31b9e1a38bef437095601d22174be3692022-12-22T03:41:52ZengAIMS PressAIMS Molecular Science2372-03012015-05-012321122410.3934/molsci.2015.3.211201503211Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?Rosanna ParlatoHolger Bierhoff0Dept. of Molecular Biology of the Cell II, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, GermanWithin the cell nucleus the nucleolus is the site of rRNA transcription and ribosome biogenesis and its activity is clearly essential for a correct cell function, however its specific role in neuronal homeostasis remains mainly unknown. Here we review recent evidence that impaired nucleolar activity is a common mechanism in different neurodegenerative disorders. We focus on the specific causes and consequences of impaired nucleolar activity to better understand the pathogenesis of neurodegenerative disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and amyotrophic lateral sclerosis/frontotemporal dementia (ALS/FTD). In particular, we discuss the genetic and epigenetic factors that might regulate nucleolar function in these diseases. In addition, we describe novel animal models enabling the dissection of the context-specific series of events triggered by nucleolar disruption, also known as nucleolar stress. Finally, we suggest how this novel mechanism could help to identify strategies to treat these still incurable disorders.http://www.aimspress.com/Molecular/article/313/fulltext.htmlnucleoluscellular stressrRNAneurodegenerationmouse modelsepigenetic regulation
spellingShingle Rosanna Parlato
Holger Bierhoff
Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?
AIMS Molecular Science
nucleolus
cellular stress
rRNA
neurodegeneration
mouse models
epigenetic regulation
title Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?
title_full Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?
title_fullStr Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?
title_full_unstemmed Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?
title_short Role of nucleolar dysfunction in neurodegenerative disorders: a game of genes?
title_sort role of nucleolar dysfunction in neurodegenerative disorders a game of genes
topic nucleolus
cellular stress
rRNA
neurodegeneration
mouse models
epigenetic regulation
url http://www.aimspress.com/Molecular/article/313/fulltext.html
work_keys_str_mv AT rosannaparlato roleofnucleolardysfunctioninneurodegenerativedisordersagameofgenes
AT holgerbierhoff roleofnucleolardysfunctioninneurodegenerativedisordersagameofgenes