| TDP-43 in ubiquitinated inclusions in the inferior olives in frontotemporal lobar degeneration and in other neurodegenerative diseases: a degenerative process distinct from normal ageing. | |
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MedLine Citation:
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PMID: 19330339 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Ubiquitin immunoreactive (UBQ-ir) inclusions were present to variable extents in the inferior olivary nucleus (ION) in 37/48 (77%) patients with frontotemporal lobar degeneration (FTLD), in 10/11 (91%) patients with motor neurone disease (MND), in 5/5 (100%) patients with Alzheimer's disease (AD), 5/7 (71%) patients with dementia with Lewy bodies, 13/19 (68%) patients with Parkinson's disease, 11/11(100%) patients with Progressive Supranuclear Palsy, 2/6 (33%) patients with Multisystem Atrophy, 1/3 (33%) patients with Huntington's disease and in 14/14 (100%) normal elderly control subjects. In FTLD, UBQ-ir inclusions were present in 26/32 (81%) patients with FTLD-U, in 10/15 (67%) patients with tauopathy, and in the single patient with Dementia Lacking Distinctive Histology. In 13 FTLD-U patients, and in a single AD and in 2 MND patients, the UBQ-ir inclusions had a rounded, spicular or skein-type appearance, and these were also TDP-43 immunoreactive (TDP-43-ir). In all other affected patients in all diagnostic groups, and in control subjects, the UBQ-ir neuronal cytoplasmic inclusions (NCI) were of a conglomerated type, resembling a cluster of large granules or globules, but were never TDP-43-ir. In 3 of the 13 FTLD-U patients with spicular NCI, conglomerated NCI were also present but in separate cells. Double-labelling immunohistochemistry, and confocal microscopy, for UBQ and TDP-43 confirmed that only the spicular UBQ-ir inclusions in patients with FTLD-U, AD and MND contained TDP-43, though in these patients there were occasional TDP-43 immunoreactive inclusions that were not UBQ-ir. Nuclear TDP-43 immunoreactivity was absent in ION in FTLD-U, AD or MND when TDP-43 cytoplasmic inclusions were present, but remained in neurones with UBQ-ir, TDP-43 negative inclusions. The target protein within the UBQ-ir, TDP-43-negative inclusions remains unknown, but present studies indicate that this is not tau, neurofilament or internexin proteins. These TDP-43 negative, UBQ-ir inclusions appear to be more related to ageing than neurodegeneration, and are without apparent diagnostic significance. The pathophysiological mechanism leading to their formation, and any consequences their presence may have on nerve cell function, remain unknown. |
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Authors:
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Yvonne Davidson; Hanan Amin; Thomas Kelley; Jing Shi; Jinzhou Tian; Ravindran Kumaran; Tammaryn Lashley; Andrew J Lees; Daniel DuPlessis; David Neary; Julie Snowden; Haruhiko Akiyama; Tetsuaki Arai; Masato Hasegawa; Rina Bandopadhyay; Steve Sikkink; Stuart Pickering-Brown; David M A Mann |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-03-28 |
Journal Detail:
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Title: Acta neuropathologica Volume: 118 ISSN: 1432-0533 ISO Abbreviation: Acta Neuropathol. Publication Date: 2009 Sep |
Date Detail:
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Created Date: 2009-07-28 Completed Date: 2009-08-21 Revised Date: 2012-01-13 |
Medline Journal Info:
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Nlm Unique ID: 0412041 Medline TA: Acta Neuropathol Country: Germany |
Other Details:
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Languages: eng Pagination: 359-69 Citation Subset: IM |
Affiliation:
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Clinical Neuroscience Research Group, Faculty of Medical and Human Sciences, Greater Manchester Neurosciences Centre, School of Translational Medicine, Hope Hospital, University of Manchester, Salford, M6 8HD, UK. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Age Factors Aged Aged, 80 and over DNA-Binding Proteins / metabolism Dementia / metabolism, pathology* Female Humans Immunohistochemistry Inclusion Bodies / metabolism, pathology Male Middle Aged Neurodegenerative Diseases / metabolism, pathology* Neurons / metabolism Olivary Nucleus / metabolism, pathology Ubiquitin / metabolism Ubiquitination / physiology |
| Grant Support | |
ID/Acronym/Agency:
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G-0909//Parkinson's UK; G-7001//Parkinson's UK |
| Chemical | |
Reg. No./Substance:
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0/DNA-Binding Proteins; 0/Ubiquitin; 0/protein TDP-43 |
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