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J Neuropathol Exp Neurol. 2008 Jan;67(1):62-7.

TAR-DNA binding protein 43 in Pick disease.

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Department of Pathology, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA.


Pick disease (PiD) is a frontotemporal dementia characterized by frontal and temporal atrophy, neuronal loss, gliosis, ballooned neurons that are positive for alpha-B crystallin and neurofilament, and the presence of tau- and ubiquitin-positive Pick bodies. TAR-DNA binding protein 43 (TDP-43) has been found to be a component of ubiquitinated inclusions in other neurodegenerative diseases, including frontotemporal lobar degeneration with ubiquitinated inclusions and amyotrophic lateral sclerosis. Fifteen cases of PiD were examined using immunohistochemical methods, and 5 cases with both Pick bodies and smaller intracytoplasmic inclusions that showed staining for ubiquitin, tau, and TDP-43 were observed. The presence of TDP-43 inclusions in PiD suggests that TDP-43 accumulation may be an important component of many neurodegenerative diseases, and that its presence in only some cases of PiD may indicate different pathways of disease development.

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