Article ; Online: Synaptic Paths to Neurodegeneration: The Emerging Role of TDP-43 and FUS in Synaptic Functions.
2018 Volume 2018, Page(s) 8413496
Abstract: TAR DNA-binding protein-43 KDa (TDP-43) and fused in sarcoma (FUS) as the defining pathological hallmarks for amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), coupled with ALS-FTD-causing mutations in both genes, indicate that their ...
Abstract | TAR DNA-binding protein-43 KDa (TDP-43) and fused in sarcoma (FUS) as the defining pathological hallmarks for amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), coupled with ALS-FTD-causing mutations in both genes, indicate that their dysfunctions damage the motor system and cognition. On the molecular level, TDP-43 and FUS participate in the biogenesis and metabolism of coding and noncoding RNAs as well as in the transport and translation of mRNAs as part of cytoplasmic mRNA-ribonucleoprotein (mRNP) granules. Intriguingly, many of the RNA targets of TDP-43 and FUS are involved in synaptic transmission and plasticity, indicating that synaptic dysfunction could be an early event contributing to motor and cognitive deficits in ALS and FTD. Furthermore, the ability of the low-complexity prion-like domains of TDP-43 and FUS to form liquid droplets suggests a potential mechanism for mRNP assembly and conversion. This review will discuss the role of TDP-43 and FUS in RNA metabolism, with an emphasis on the involvement of this process in synaptic function and neuroprotection. This will be followed by a discussion of the potential phase separation mechanism for forming RNP granules and pathological inclusions. |
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MeSH term(s) | DNA-Binding Proteins/metabolism ; Humans ; Nerve Degeneration/metabolism ; Neurodegenerative Diseases/metabolism ; RNA-Binding Protein FUS/metabolism ; Synapses/metabolism |
Chemical Substances | DNA-Binding Proteins ; RNA-Binding Protein FUS ; TARDBP protein, human |
Language | English |
Publishing date | 2018-04-11 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
ZDB-ID | 1454938-4 |
ISSN | 1687-5443 ; 2090-5904 ; 0792-8483 |
ISSN (online) | 1687-5443 |
ISSN | 2090-5904 ; 0792-8483 |
DOI | 10.1155/2018/8413496 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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