PMID- 17715352 OWN - NLM STAT- MEDLINE DCOM- 20070911 LR - 20200225 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 27 IP - 34 DP - 2007 Aug 22 TI - The tau N279K exon 10 splicing mutation recapitulates frontotemporal dementia and parkinsonism linked to chromosome 17 tauopathy in a mouse model. PG - 9155-68 AB - Intracellular tau deposits are characteristic of several neurodegenerative disorders called tauopathies. The tau protein regulates the stability and assembly of microtubules by binding to microtubules through three or four microtubule-binding repeats (3R and 4R). The number of microtubule-binding repeats is determined by the inclusion or exclusion of the second microtubule-binding repeat encoded by exon 10 of the TAU gene. TAU gene mutations that alter the inclusion of exon 10, and hence the 4R:3R ratio, are causal in the tauopathy frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17). A mutation located in exon 10 has been identified in several FTDP-17 families that present with increased exon 10 inclusion in both mRNA and protein, parkinsonism, movement disorders, and dementia. We have engineered a human tau minigene construct that was designed to allow alternative splicing of the tau exon 10. Here we demonstrate that transgenic mice expressing human tau protein with this mutation develop neurodegeneration as result of aberrant splicing. The mice recapitulate many of the disease hallmarks that are seen in patients with this mutation, including increased tau exon 10 inclusion in both mRNA and protein, motor and behavioral deficits, and tau protein accumulation in neurons and tufted astrocytes. Furthermore, these mice present with degeneration of the nigrostriatal dopaminergic pathway, suggesting a possible mechanism for parkinsonism in FTDP-17. Additionally, activated caspase-3 immunoreactivity in both neurons and astrocytes implicates the involvement of the apoptotic pathway in the pathology of these mice. FAU - Dawson, Hana N AU - Dawson HN AD - Division of Neurology, Duke University, Durham, North Carolina 27710, USA. dawso009@mc.duke.edu FAU - Cantillana, Viviana AU - Cantillana V FAU - Chen, Liling AU - Chen L FAU - Vitek, Michael P AU - Vitek MP LA - eng GR - R01 AG019780/AG/NIA NIH HHS/United States GR - 5R01-AG19780-05/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - 0 (Nerve Tissue Proteins) RN - 0 (tau Proteins) RN - 7006-34-0 (Asparagine) RN - K3Z4F929H6 (Lysine) SB - IM MH - Age Factors MH - Analysis of Variance MH - Animals MH - Asparagine/*genetics MH - Behavior, Animal MH - Central Nervous System/pathology MH - Chromosomes, Human, Pair 17/*genetics MH - Dementia/*genetics MH - Embryo, Mammalian MH - Exons/genetics MH - Gene Expression Regulation, Developmental MH - Humans MH - Lysine/*genetics MH - Maze Learning/physiology MH - Mice MH - Mice, Transgenic MH - Models, Molecular MH - Motor Activity/genetics MH - Nerve Tissue Proteins/metabolism MH - Neurons/metabolism MH - Parkinsonian Disorders/*genetics MH - RNA Splicing/*genetics MH - tau Proteins/*genetics PMC - PMC6672194 EDAT- 2007/08/24 09:00 MHDA- 2007/09/12 09:00 PMCR- 2008/02/22 CRDT- 2007/08/24 09:00 PHST- 2007/08/24 09:00 [pubmed] PHST- 2007/09/12 09:00 [medline] PHST- 2007/08/24 09:00 [entrez] PHST- 2008/02/22 00:00 [pmc-release] AID - 27/34/9155 [pii] AID - 3255676 [pii] AID - 10.1523/JNEUROSCI.5492-06.2007 [doi] PST - ppublish SO - J Neurosci. 2007 Aug 22;27(34):9155-68. doi: 10.1523/JNEUROSCI.5492-06.2007.