TDP-43 mutations in familial and sporadic amyotrophic lateral sclerosis

Jemeen Sreedharan, Ian P. Blair, Vineeta B. Tripathi, Xun Hu, Caroline Vance, Boris Rogelj, Steven Ackerley, Jennifer C. Durnall, Kelly L. Williams, Emanuele Buratti, Francisco Baralle, Jacqueline De Belleroche, J. Douglas Mitchell, P. Nigel Leigh, Ammar Al-Chalabi, Christopher C. Miller, Garth Nicholson, Christopher E. Shaw

Research output: Contribution to journalArticlepeer-review

1780 Citations (Scopus)

Abstract

Amyotrophic lateral sclerosis (ALS) is a fatal motor neuron disorder characterized pathologically by ubiquitinated TAR DNA binding protein (TDP-43) inclusions. The function of TDP-43 in the nervous system is uncertain, and a mechanistic role in neurodegeneration remains speculative. We identified neighboring mutations in a highly conserved region of TARDBP in sporadic and familial ALS cases. TARDBPM337V segregated with disease within one kindred and a genome-wide scan confirmed that linkage was restricted to chromosome 1p36, which contains the TARDBP locus. Mutant forms of TDP-43 fragmented in vitro more readily than wild type and, in vivo, caused neural apoptosis and developmental delay in the chick embryo. Our evidence suggests a pathophysiological link between TDP-43 and ALS.

Original languageEnglish
Pages (from-to)1668-1672
Number of pages5
JournalScience
Volume319
Issue number5870
DOIs
Publication statusPublished - 21 Mar 2008
Externally publishedYes

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