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Review
. 2010 Oct;9(10):995-1007.
doi: 10.1016/S1474-4422(10)70195-2.

TDP-43 and FUS in amyotrophic lateral sclerosis and frontotemporal dementia

Ian Ra Mackenzie  1 , Rosa Rademakers, Manuela Neumann
Affiliations
Review

TDP-43 and FUS in amyotrophic lateral sclerosis and frontotemporal dementia

Ian Ra Mackenzie et al. Lancet Neurol. 2010 Oct.

Abstract

Abnormal intracellular protein aggregates comprise a key characteristic in most neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). The seminal discoveries of accumulation of TDP-43 in most cases of ALS and the most frequent form of FTD, frontotemporal lobar degeneration with ubiquitinated inclusions, followed by identification of FUS as the novel pathological protein in a small subset of patients with ALS and various FTD subtypes provide clear evidence that these disorders are related. The creation of a novel molecular classification of ALS and FTD based on the identity of the predominant protein abnormality has, therefore, been possible. The striking functional and structural similarities of TDP-43 and FUS, which are both DNA/RNA binding proteins, imply that abnormal RNA metabolism is a pivotal event, but the mechanisms leading to TDP-43 and FUS accumulation and the resulting neurodegeneration are currently unknown. Nonetheless, TDP-43 and FUS are promising candidates for the development of novel biomarker assays and targeted therapies.

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