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Neurofibrillary degeneration in progressive supranuclear palsy and corticobasal degeneration: Tau pathologies with exclusively exon 10 isoforms



Neurofibrillary degeneration in progressive supranuclear palsy and corticobasal degeneration: Tau pathologies with exclusively exon 10 isoforms



Journal of Neurochemistry 72(3): 1243-1249



Pathological tau proteins that constitute the basic matrix of neuronal inclusions observed in numerous neurodegenerative disorders are disease specific. This is mainly the consequence of the aggregation of specific sets of tau isoforms according to the diseases, i.e., six isoforms in Alzheimer's disease (AD) and exclusively the three tau isoforms lacking the corresponding sequence of exon 10 (E10-) in Pick's disease (PiD). By using antibodies specific to the different tau isoforms and one- and two-dimensional gel electrophoresis followed by western blots, we demonstrate herein a third group of neurodegenerative disorders characterized by intraneuronal inclusions exclusively constituted of tau isoforms containing the sequence corresponding to exon 10, progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). Together, tau isoforms with exon 10 clearly differentiate three groups of neurodegenerative diseases: AD, PiD, and PSP/CBD. For each group, the neuropathological and clinical phenotypes are most likely related to specific sets of tau isoforms expressed by the vulnerable neuronal populations. The recently described mutations of the tau gene responsible for familial frontotemporal dementias also support this hypothesis.

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Accession: 011046917

Download citation: RISBibTeXText

PMID: 10037497

DOI: 10.1046/j.1471-4159.1999.0721243.x


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