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TDP-43 in the Ubiquitin Pathology of Frontotemporal Dementia With VCP Gene Mutations

Open access
Neumann, Manuela, Mackenzie, Ian R., Cairns, Nigel J., Boyer, Philip J., Markesbery, William R., Smith, Charles D., Taylor, J. Paul, Kretzschmar, Hans A., Kimonis, Virginia E., Forman, Mark S.·2007·Journal of Neuropathology and Experimental Neurology

Abstract

Frontotemporal dementia with inclusion body myopathy and Paget disease of bone is a rare, autosomal-dominant disorder caused by mutations in the gene valosin-containing protein (VCP). The CNS pathology is characterized by a novel pattern of ubiquitin pathology distinct from sporadic and familial frontotemporal lobar degeneration with ubiquitin-positive inclusions (FTLD-U) without VCP mutations. TAR DNA binding protein 43 (TDP-43) was recently identified as a major disease protein in the ubiquitin-positive inclusions of sporadic and familial FTLD-U. To determine whether the ubiquitin pathology associated with mutations in VCP is characterized by the accumulation of TDP-43, we analyzed TDP-43 in the CNS pathology of five patients with VCP gene mutations. Accumulations of TDP-43 colocalized with ubiquitin pathology in inclusion body myopathy and Paget disease of bone, including both intranuclear inclusions and dystrophic neurites. Similar to FTLD-U, phosphorylated TDP-43 was detected only in insoluble brain extracts from affected brain regions. Identification of TDP-43, but not VCP, within ubiquitin-positive inclusions supports the hypothesis that VCP gene mutations lead to a dominant negative loss or alteration of VCP function culminating in impaired degradation of TDP-43. TDP-43 is a common pathologic substrate linking a variety of distinct patterns of FTLD-U pathology caused by different genetic alterations.

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Metadata

Authors
Neumann, M., Mackenzie, I. R., Cairns, N. J., Boyer, P. J., Markesbery, W. R., Smith, C. D., Taylor, J. P., Kretzschmar, H. A., Kimonis, V. E., & Forman, M. S.
Venue
Journal of Neuropathology and Experimental Neurology
Published
2007-02
Volume
66
Issue
2
Pages
152-157
ISSN
0022-3069 (ISSN-L)
OpenAlex
W2051490456
Cited by
334
References
10
FWCI
23.96
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: TDP-43 in the Ubiquitin Pathology of Frontotemporal Dementia With VCP Gene Mutations. https://app.cochat.ai/papers/10.1097/nen.0b013e31803020b9
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Neumann, M., Mackenzie, I. R., Cairns, N. J., Boyer, P. J., Markesbery, W. R., Smith, C. D., Taylor, J. P., Kretzschmar, H. A., Kimonis, V. E., & Forman, M. S. (2007). TDP-43 in the Ubiquitin Pathology of Frontotemporal Dementia With VCP Gene Mutations. Journal of Neuropathology and Experimental Neurology. https://doi.org/10.1097/nen.0b013e31803020b9

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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