Proteomics

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Nucleolin rescues TDP-43 toxicity in yeast and human cell models


ABSTRACT: TDP-43 is a nuclear protein involved in pivotal processes, extensively studied for its implication in neurodegenerative disorders. TDP-43 cytosolic inclusions are a common neuropathologic hallmark in amyotrophic lateral sclerosis (ALS) and related diseases, and it is now established that TDP-43 misfolding and aggregation play a key role in their etiopathology. TDP-43 neurotoxic mechanisms are not yet clarified, but the identification of proteins able to modulate TDP-43-mediated damage may be promising therapeutic targets for TDP-43 proteinopathies. Here we show by the use of refined yeast models that the nucleolar protein nucleolin (NCL) acts as a potent suppressor of TDP-43 toxicity, restoring cell viability. We provide evidence that NCL co-expression is able to alleviate TDP-43-induced damage also in human cells, further supporting its beneficial effects in a more consistent pathophysiological context. Presented data suggest that NCL could promote TDP-43 nuclear retention, reducing the formation of toxic cytosolic TDP-43 aggregates.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Saccharomyces Cerevisiae (baker's Yeast)

TISSUE(S): Cell Culture

SUBMITTER: Roberto Stella  

LAB HEAD: Alessandro Bertoli

PROVIDER: PXD022432 | Pride | 2021-03-26

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
22082018_Yeast_TMT.msf Msf
22082018_Yeast_TMT_Fr1_5ug.msf Msf
22082018_Yeast_TMT_Fr1_5ug.raw Raw
22082018_Yeast_TMT_Fr1_5ug_ExcList.raw Raw
22082018_Yeast_TMT_Fr2_5ug.msf Msf
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