A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Reference Report

Reference
Citation Napoletano, F., Occhi, S., Calamita, P., Volpi, V., Blanc, E., Charroux, B., Royet, J., Fanto, M. (2011). Polyglutamine Atrophin provokes neurodegeneration in Drosophila by repressing fat.  EMBO J. 30(5): 945--958. (Export to RIS)
FlyBase ID FBrf0213147
Publication Type Research paper
PubMed ID 21278706
PubMed Abstract Large alterations in transcription accompany neurodegeneration in polyglutamine (polyQ) diseases. These pathologies manifest both general polyQ toxicity and mutant protein-specific effects. In this study, we report that the fat tumour suppressor gene mediates neurodegeneration induced by the polyQ protein Atrophin. We have monitored early transcriptional alterations in a Drosophila model of Dentatorubral-pallidoluysian Atrophy and found that polyQ Atrophins downregulate fat. Fat protects from neurodegeneration and Atrophin toxicity through the Hippo kinase cascade. Fat/Hippo signalling does not provoke neurodegeneration by stimulating overgrowth; rather, it alters the autophagic flux in photoreceptor neurons, thereby affecting cell homeostasis. Our data thus provide a crucial insight into the specific mechanism of a polyQ disease and reveal an unexpected neuroprotective role of the Fat/Hippo pathway.
DOI 10.1038/emboj.2011.1
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Language of Publication English
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Publication Type Journal
Abbreviation EMBO J.
Title The EMBO Journal
Publication Year 1982-
ISBN/ISSN 0261-4189
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