TAR DNA-binding protein 43 in neurodegenerative disease
Top Cited Papers
- 16 March 2010
- journal article
- review article
- Published by Springer Science and Business Media LLC in Nature Reviews Neurology
- Vol. 6 (4), 211-220
- https://doi.org/10.1038/nrneurol.2010.18
Abstract
TAR DNA-binding protein 43 (TDP-43) inclusions are the main histopathological feature of amyotrophic lateral sclerosis (ALS) and many cases of frontotemporal lobar degeneration (FTLD). In this article, Chen-Plotkinet al. examine the TDP-43 pathology found in these and other neurodegenerative diseases. They also argue for ALS and FTLD with TDP-43 inclusions to be considered as two ends of a continuum of disease that is characterized by TDP-43-mediated neurodegeneration. In 2006, TAR DNA-binding protein 43 (TDP-43), a highly conserved nuclear protein, was identified as the major disease protein in amyotrophic lateral sclerosis (ALS) and in the most common variant of frontotemporal lobar degeneration (FTLD), FTLD-U, which is characterized by cytoplasmic inclusions that stain positive for ubiquitin but negative for tau and α-synuclein. Since then, rapid advances have been made in our understanding of the physiological function of TDP-43 and the role of this protein in neurodegeneration. These advances link ALS and FTLD-U (now designated FTLD-TDP) to a shared mechanism of disease. In this Review, we summarize the current evidence regarding the normal function of TDP-43 and the TDP-43 pathology observed in FTLD-TDP, ALS, and other neurodegenerative diseases wherein TDP-43 pathology co-occurs with other disease-specific lesions (for example, with amyloid plaques and neurofibrillary tangles in Alzheimer disease). Moreover, we discuss the accumulating data that support our view that FTLD-TDP and ALS represent two ends of a spectrum of primary TDP-43 proteinopathies. Finally, we comment on the importance of recent advances in TDP-43-related research to neurological practice, including the new opportunities to develop better diagnostics and disease-modifying therapies for ALS, FTLD-TDP, and related disorders exhibiting TDP-43 pathology.Keywords
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