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DnaJC7 in Amyotrophic Lateral Sclerosis
Protein misfolding is a common basis of many neurodegenerative diseases including amyotrophic lateral sclerosis (ALS). Misfolded proteins, such as TDP-43, FUS, Matrin3, and SOD1, mislocalize and form the hallmark cytoplasmic and nuclear inclusions in neurons of ALS patients. Cellular protein quality...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9025444/ https://www.ncbi.nlm.nih.gov/pubmed/35456894 http://dx.doi.org/10.3390/ijms23084076 |
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author | Dilliott, Allison A. Andary, Catherine M. Stoltz, Meaghan Petropavlovskiy, Andrey A. Farhan, Sali M. K. Duennwald, Martin L. |
author_facet | Dilliott, Allison A. Andary, Catherine M. Stoltz, Meaghan Petropavlovskiy, Andrey A. Farhan, Sali M. K. Duennwald, Martin L. |
author_sort | Dilliott, Allison A. |
collection | PubMed |
description | Protein misfolding is a common basis of many neurodegenerative diseases including amyotrophic lateral sclerosis (ALS). Misfolded proteins, such as TDP-43, FUS, Matrin3, and SOD1, mislocalize and form the hallmark cytoplasmic and nuclear inclusions in neurons of ALS patients. Cellular protein quality control prevents protein misfolding under normal conditions and, particularly, when cells experience protein folding stress due to the fact of increased levels of reactive oxygen species, genetic mutations, or aging. Molecular chaperones can prevent protein misfolding, refold misfolded proteins, or triage misfolded proteins for degradation by the ubiquitin–proteasome system or autophagy. DnaJC7 is an evolutionarily conserved molecular chaperone that contains both a J-domain for the interaction with Hsp70s and tetratricopeptide domains for interaction with Hsp90, thus joining these two major chaperones’ machines. Genetic analyses reveal that pathogenic variants in the gene encoding DnaJC7 cause familial and sporadic ALS. Yet, the underlying ALS-associated molecular pathophysiology and many basic features of DnaJC7 function remain largely unexplored. Here, we review aspects of DnaJC7 expression, interaction, and function to propose a loss-of-function mechanism by which pathogenic variants in DNAJC7 contribute to defects in DnaJC7-mediated chaperoning that might ultimately contribute to neurodegeneration in ALS. |
format | Online Article Text |
id | pubmed-9025444 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-90254442022-04-23 DnaJC7 in Amyotrophic Lateral Sclerosis Dilliott, Allison A. Andary, Catherine M. Stoltz, Meaghan Petropavlovskiy, Andrey A. Farhan, Sali M. K. Duennwald, Martin L. Int J Mol Sci Review Protein misfolding is a common basis of many neurodegenerative diseases including amyotrophic lateral sclerosis (ALS). Misfolded proteins, such as TDP-43, FUS, Matrin3, and SOD1, mislocalize and form the hallmark cytoplasmic and nuclear inclusions in neurons of ALS patients. Cellular protein quality control prevents protein misfolding under normal conditions and, particularly, when cells experience protein folding stress due to the fact of increased levels of reactive oxygen species, genetic mutations, or aging. Molecular chaperones can prevent protein misfolding, refold misfolded proteins, or triage misfolded proteins for degradation by the ubiquitin–proteasome system or autophagy. DnaJC7 is an evolutionarily conserved molecular chaperone that contains both a J-domain for the interaction with Hsp70s and tetratricopeptide domains for interaction with Hsp90, thus joining these two major chaperones’ machines. Genetic analyses reveal that pathogenic variants in the gene encoding DnaJC7 cause familial and sporadic ALS. Yet, the underlying ALS-associated molecular pathophysiology and many basic features of DnaJC7 function remain largely unexplored. Here, we review aspects of DnaJC7 expression, interaction, and function to propose a loss-of-function mechanism by which pathogenic variants in DNAJC7 contribute to defects in DnaJC7-mediated chaperoning that might ultimately contribute to neurodegeneration in ALS. MDPI 2022-04-07 /pmc/articles/PMC9025444/ /pubmed/35456894 http://dx.doi.org/10.3390/ijms23084076 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Dilliott, Allison A. Andary, Catherine M. Stoltz, Meaghan Petropavlovskiy, Andrey A. Farhan, Sali M. K. Duennwald, Martin L. DnaJC7 in Amyotrophic Lateral Sclerosis |
title | DnaJC7 in Amyotrophic Lateral Sclerosis |
title_full | DnaJC7 in Amyotrophic Lateral Sclerosis |
title_fullStr | DnaJC7 in Amyotrophic Lateral Sclerosis |
title_full_unstemmed | DnaJC7 in Amyotrophic Lateral Sclerosis |
title_short | DnaJC7 in Amyotrophic Lateral Sclerosis |
title_sort | dnajc7 in amyotrophic lateral sclerosis |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9025444/ https://www.ncbi.nlm.nih.gov/pubmed/35456894 http://dx.doi.org/10.3390/ijms23084076 |
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