Frontotemporal dementia with novel tau pathology and a Glu342Val tau mutation

Carol F. Lippa*, Victoria Zhukareva, T. Kawarai, Kunihiro Uryu, M. Shafiq, L. E. Nee, J. Grafman, Yan Liang, Peter H. St George-Hyslop, John Q. Trojanowski, Virginia M Y Lee

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

It is unclear how tau gene mutations cause frontotemporal dementia (FTD) with parkinsonism linked to chromosome 17 (FTDP-17), but those in exon 10 (E10) or the following intron may be pathogenic by altering E10 splicing, perturbing the normal 1:1 ratio of four versus three microtubule-binding repeat tau (4R:3R tau ratio) and forming tau inclusions. We report on a 55-year old woman with frontotemporal dementia and a family history of FTDP-17 in whom we found a novel E12 (Glu342Val) tau gene mutation, prominent frontotemporal neuron loss, intracytoplasmic tau aggregates, paired helical tau filaments, increased 4R tau messenger RNA, increased 4R tau without E2 or E3 inserts, decreased 4R tau with these inserts, and a 4R:3R tau ratio greater than 1 in gray and white matter. Thus, this novel Glu342Val mutation may cause FTDP-17 by unprecedented mechanisms that alter splicing of E2, E3, and E10 to preferentially increase 4R tau without amino terminal inserts and promote aggregation of tau filaments into cytopathic inclusions.

Original languageEnglish (US)
Pages (from-to)850-858
Number of pages9
JournalAnnals of Neurology
Volume48
Issue number6
DOIs
StatePublished - Dec 19 2000

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Frontotemporal Dementia
Pathology
Mutation
Exons
Chromosomes, Human, Pair 17
Microtubules
Introns
Genes
Neurons
Messenger RNA

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Cite this

Lippa, C. F., Zhukareva, V., Kawarai, T., Uryu, K., Shafiq, M., Nee, L. E., ... Lee, V. M. Y. (2000). Frontotemporal dementia with novel tau pathology and a Glu342Val tau mutation. Annals of Neurology, 48(6), 850-858. https://doi.org/10.1002/1531-8249(200012)48:6<850::AID-ANA5>3.0.CO;2-V
Lippa, Carol F. ; Zhukareva, Victoria ; Kawarai, T. ; Uryu, Kunihiro ; Shafiq, M. ; Nee, L. E. ; Grafman, J. ; Liang, Yan ; St George-Hyslop, Peter H. ; Trojanowski, John Q. ; Lee, Virginia M Y. / Frontotemporal dementia with novel tau pathology and a Glu342Val tau mutation. In: Annals of Neurology. 2000 ; Vol. 48, No. 6. pp. 850-858.
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Lippa, CF, Zhukareva, V, Kawarai, T, Uryu, K, Shafiq, M, Nee, LE, Grafman, J, Liang, Y, St George-Hyslop, PH, Trojanowski, JQ & Lee, VMY 2000, 'Frontotemporal dementia with novel tau pathology and a Glu342Val tau mutation', Annals of Neurology, vol. 48, no. 6, pp. 850-858. https://doi.org/10.1002/1531-8249(200012)48:6<850::AID-ANA5>3.0.CO;2-V

Frontotemporal dementia with novel tau pathology and a Glu342Val tau mutation. / Lippa, Carol F.; Zhukareva, Victoria; Kawarai, T.; Uryu, Kunihiro; Shafiq, M.; Nee, L. E.; Grafman, J.; Liang, Yan; St George-Hyslop, Peter H.; Trojanowski, John Q.; Lee, Virginia M Y.

In: Annals of Neurology, Vol. 48, No. 6, 19.12.2000, p. 850-858.

Research output: Contribution to journalArticle

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T1 - Frontotemporal dementia with novel tau pathology and a Glu342Val tau mutation

AU - Lippa, Carol F.

AU - Zhukareva, Victoria

AU - Kawarai, T.

AU - Uryu, Kunihiro

AU - Shafiq, M.

AU - Nee, L. E.

AU - Grafman, J.

AU - Liang, Yan

AU - St George-Hyslop, Peter H.

AU - Trojanowski, John Q.

AU - Lee, Virginia M Y

PY - 2000/12/19

Y1 - 2000/12/19

N2 - It is unclear how tau gene mutations cause frontotemporal dementia (FTD) with parkinsonism linked to chromosome 17 (FTDP-17), but those in exon 10 (E10) or the following intron may be pathogenic by altering E10 splicing, perturbing the normal 1:1 ratio of four versus three microtubule-binding repeat tau (4R:3R tau ratio) and forming tau inclusions. We report on a 55-year old woman with frontotemporal dementia and a family history of FTDP-17 in whom we found a novel E12 (Glu342Val) tau gene mutation, prominent frontotemporal neuron loss, intracytoplasmic tau aggregates, paired helical tau filaments, increased 4R tau messenger RNA, increased 4R tau without E2 or E3 inserts, decreased 4R tau with these inserts, and a 4R:3R tau ratio greater than 1 in gray and white matter. Thus, this novel Glu342Val mutation may cause FTDP-17 by unprecedented mechanisms that alter splicing of E2, E3, and E10 to preferentially increase 4R tau without amino terminal inserts and promote aggregation of tau filaments into cytopathic inclusions.

AB - It is unclear how tau gene mutations cause frontotemporal dementia (FTD) with parkinsonism linked to chromosome 17 (FTDP-17), but those in exon 10 (E10) or the following intron may be pathogenic by altering E10 splicing, perturbing the normal 1:1 ratio of four versus three microtubule-binding repeat tau (4R:3R tau ratio) and forming tau inclusions. We report on a 55-year old woman with frontotemporal dementia and a family history of FTDP-17 in whom we found a novel E12 (Glu342Val) tau gene mutation, prominent frontotemporal neuron loss, intracytoplasmic tau aggregates, paired helical tau filaments, increased 4R tau messenger RNA, increased 4R tau without E2 or E3 inserts, decreased 4R tau with these inserts, and a 4R:3R tau ratio greater than 1 in gray and white matter. Thus, this novel Glu342Val mutation may cause FTDP-17 by unprecedented mechanisms that alter splicing of E2, E3, and E10 to preferentially increase 4R tau without amino terminal inserts and promote aggregation of tau filaments into cytopathic inclusions.

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