A novel Tau Mutation in exon 12, P. Q336H, causes hereditary pick disease

Pawel Tacik, Michael Deture, Kelly M. Hinkle, Wen Lang Lin, Monica Sanchez-Contreras, Yari Carlomagno, Otto D Pedraza, Rosa V Rademakers, Owen A Ross, Zbigniew K Wszolek, Dennis W Dickson

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Pick disease (PiD) is a frontotemporal lobar degeneration with distinctive neuronal inclusions (Pick bodies) that are enriched in 3-repeat (3R) tau. Although mostly sporadic, mutations in the tau gene (MAPT) have been reported. We screened 24 cases of neuropathologically confirmed PiD for MAPT mutations and found a novel mutation (c. 1008G>C, p. Q336H) in 1 patient. Pathogenicity was confirmed on microtubule assembly and tau filament formation assays. The patient was compared with sporadic PiD and PiD associated with MAPT mutations from a review of the literature. The patient had behavioral changes at 55 years of age, followed by reduced verbal fluency, parkinsonism, and death at 63 years of age. His mother and maternal uncle had similar symptoms. Recombinant tau with p. Q336H mutation formed filaments faster than wild-type tau, especially with 3R tau. It also promoted more microtubule assembly than wild-type tau. We conclude that mutations in MAPT, including p. Q336H, can be associated with clinical, pathologic, and biochemical features that are similar to those in sporadic PiD. The pathomechanism of p. Q336H, and another previously reported variant at the same codon (p. Q336R), seems to be unique to MAPT mutations in that they not only predispose to abnormal tau filament formation but also facilitate microtubule assembly in a 3R tau-dependent manner.

Original languageEnglish (US)
Pages (from-to)1042-1052
Number of pages11
JournalJournal of Neuropathology and Experimental Neurology
Volume74
Issue number11
StatePublished - 2015

Fingerprint

Pick Disease of the Brain
Inborn Genetic Diseases
Exons
Mutation
Microtubules
Mothers
Frontotemporal Lobar Degeneration
Inclusion Bodies
Parkinsonian Disorders
Codon
Virulence

Keywords

  • Dementia
  • Frontotemporal dementia
  • FTDP-17
  • FTLD-tau
  • Pick disease
  • Tau gene
  • Tau protein

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Clinical Neurology
  • Neurology
  • Cellular and Molecular Neuroscience

Cite this

Tacik, P., Deture, M., Hinkle, K. M., Lin, W. L., Sanchez-Contreras, M., Carlomagno, Y., ... Dickson, D. W. (2015). A novel Tau Mutation in exon 12, P. Q336H, causes hereditary pick disease. Journal of Neuropathology and Experimental Neurology, 74(11), 1042-1052.

A novel Tau Mutation in exon 12, P. Q336H, causes hereditary pick disease. / Tacik, Pawel; Deture, Michael; Hinkle, Kelly M.; Lin, Wen Lang; Sanchez-Contreras, Monica; Carlomagno, Yari; Pedraza, Otto D; Rademakers, Rosa V; Ross, Owen A; Wszolek, Zbigniew K; Dickson, Dennis W.

In: Journal of Neuropathology and Experimental Neurology, Vol. 74, No. 11, 2015, p. 1042-1052.

Research output: Contribution to journalArticle

Tacik P, Deture M, Hinkle KM, Lin WL, Sanchez-Contreras M, Carlomagno Y et al. A novel Tau Mutation in exon 12, P. Q336H, causes hereditary pick disease. Journal of Neuropathology and Experimental Neurology. 2015;74(11):1042-1052.
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