Mutations in progranulin are a major cause of ubiquitin-positive frontotemporal lobar degeneration

Jennifer Gass, Ashley Cannon, Ian R. Mackenzie, Bradley Boeve, Matt Baker, Jennifer Adamson, Richard Crook, Stacey Melquist, Karen Kuntz, Ron Petersen, Keith Josephs, Stuart M. Pickering-Brown, Neill Graff-Radford, Ryan Uitti, Dennis Dickson, Zbigniew Wszolek, John Gonzalez, Thomas G. Beach, Eileen Bigio, Nancy JohnsonSandra Weintraub, Marsel Mesulam, Charles L. White, Bryan Woodruff, Richard Caselli, Ging Yuek Hsiung, Howard Feldman, Dave Knopman, Mike Hutton, Rosa Rademakers

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Abstract

Null mutations in the progranulin gene (PGRN) were recently reported to cause tau-negative frontotemporal dementia linked to chromosome 17. We assessed the genetic contribution of PGRN mutations in an extended population of patients with frontotemporal lobar degeneration (FTLD) (N = 378). Mutations were identified in 10% of the total FTLD population and 23% of patients with a positive family history. This mutation frequency dropped to 5% when analysis was restricted to an unbiased FTLD subpopulation (N = 167) derived from patients referred to Alzheimer's Disease Research Centers (ADRC). Among the ADRC patients, PGRN mutations were equally frequent as mutations in the tau gene (MAPT). We identified 23 different pathogenic PGRN mutations, including a total of 21 nonsense, frameshift and splice-site mutations that cause premature termination of the coding sequence and degradation of the mutant RNA by nonsense-mediated decay. We also observed an unusual splice-site mutation in the exon 1 5′ splice site, which leads to loss of the Kozac sequence, and a missense mutation in the hydrophobic core of the PGRN signal peptide. Both mutations revealed novel mechanisms that result in loss of functional PGRN. One mutation, c.1477C>T (p.Arg493X), was detected in eight independently ascertained familial FTLD patients who were shown to share a common extended haplotype over the PGRN genomic region. Clinical examination of patients with PGRN mutations revealed highly variable onset ages with language dysfunction as a common presenting symptom. Neuropathological examination showed FTLD with ubiquitin-positive cytoplasmic and intranuclear inclusions in all PGRN mutation carriers.

Original languageEnglish (US)
Pages (from-to)2988-3001
Number of pages14
JournalHuman Molecular Genetics
Volume15
Issue number20
DOIs
StatePublished - Oct 15 2006

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Frontotemporal Lobar Degeneration
Ubiquitin
Mutation
Genes
Frontotemporal Dementia
Alzheimer Disease
Intranuclear Inclusion Bodies
RNA Splice Sites
Chromosomes, Human, Pair 17
Inclusion Bodies
RNA Stability
Mutation Rate
Missense Mutation
Protein Sorting Signals
Age of Onset
Research
Haplotypes
Population

ASJC Scopus subject areas

  • Genetics

Cite this

Gass, J., Cannon, A., Mackenzie, I. R., Boeve, B., Baker, M., Adamson, J., ... Rademakers, R. (2006). Mutations in progranulin are a major cause of ubiquitin-positive frontotemporal lobar degeneration. Human Molecular Genetics, 15(20), 2988-3001. https://doi.org/10.1093/hmg/ddl241

Mutations in progranulin are a major cause of ubiquitin-positive frontotemporal lobar degeneration. / Gass, Jennifer; Cannon, Ashley; Mackenzie, Ian R.; Boeve, Bradley; Baker, Matt; Adamson, Jennifer; Crook, Richard; Melquist, Stacey; Kuntz, Karen; Petersen, Ron; Josephs, Keith; Pickering-Brown, Stuart M.; Graff-Radford, Neill; Uitti, Ryan; Dickson, Dennis; Wszolek, Zbigniew; Gonzalez, John; Beach, Thomas G.; Bigio, Eileen; Johnson, Nancy; Weintraub, Sandra; Mesulam, Marsel; White, Charles L.; Woodruff, Bryan; Caselli, Richard; Hsiung, Ging Yuek; Feldman, Howard; Knopman, Dave; Hutton, Mike; Rademakers, Rosa.

In: Human Molecular Genetics, Vol. 15, No. 20, 15.10.2006, p. 2988-3001.

Research output: Contribution to journalArticle

Gass, J, Cannon, A, Mackenzie, IR, Boeve, B, Baker, M, Adamson, J, Crook, R, Melquist, S, Kuntz, K, Petersen, R, Josephs, K, Pickering-Brown, SM, Graff-Radford, N, Uitti, R, Dickson, D, Wszolek, Z, Gonzalez, J, Beach, TG, Bigio, E, Johnson, N, Weintraub, S, Mesulam, M, White, CL, Woodruff, B, Caselli, R, Hsiung, GY, Feldman, H, Knopman, D, Hutton, M & Rademakers, R 2006, 'Mutations in progranulin are a major cause of ubiquitin-positive frontotemporal lobar degeneration', Human Molecular Genetics, vol. 15, no. 20, pp. 2988-3001. https://doi.org/10.1093/hmg/ddl241
Gass, Jennifer ; Cannon, Ashley ; Mackenzie, Ian R. ; Boeve, Bradley ; Baker, Matt ; Adamson, Jennifer ; Crook, Richard ; Melquist, Stacey ; Kuntz, Karen ; Petersen, Ron ; Josephs, Keith ; Pickering-Brown, Stuart M. ; Graff-Radford, Neill ; Uitti, Ryan ; Dickson, Dennis ; Wszolek, Zbigniew ; Gonzalez, John ; Beach, Thomas G. ; Bigio, Eileen ; Johnson, Nancy ; Weintraub, Sandra ; Mesulam, Marsel ; White, Charles L. ; Woodruff, Bryan ; Caselli, Richard ; Hsiung, Ging Yuek ; Feldman, Howard ; Knopman, Dave ; Hutton, Mike ; Rademakers, Rosa. / Mutations in progranulin are a major cause of ubiquitin-positive frontotemporal lobar degeneration. In: Human Molecular Genetics. 2006 ; Vol. 15, No. 20. pp. 2988-3001.
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abstract = "Null mutations in the progranulin gene (PGRN) were recently reported to cause tau-negative frontotemporal dementia linked to chromosome 17. We assessed the genetic contribution of PGRN mutations in an extended population of patients with frontotemporal lobar degeneration (FTLD) (N = 378). Mutations were identified in 10{\%} of the total FTLD population and 23{\%} of patients with a positive family history. This mutation frequency dropped to 5{\%} when analysis was restricted to an unbiased FTLD subpopulation (N = 167) derived from patients referred to Alzheimer's Disease Research Centers (ADRC). Among the ADRC patients, PGRN mutations were equally frequent as mutations in the tau gene (MAPT). We identified 23 different pathogenic PGRN mutations, including a total of 21 nonsense, frameshift and splice-site mutations that cause premature termination of the coding sequence and degradation of the mutant RNA by nonsense-mediated decay. We also observed an unusual splice-site mutation in the exon 1 5′ splice site, which leads to loss of the Kozac sequence, and a missense mutation in the hydrophobic core of the PGRN signal peptide. Both mutations revealed novel mechanisms that result in loss of functional PGRN. One mutation, c.1477C>T (p.Arg493X), was detected in eight independently ascertained familial FTLD patients who were shown to share a common extended haplotype over the PGRN genomic region. Clinical examination of patients with PGRN mutations revealed highly variable onset ages with language dysfunction as a common presenting symptom. Neuropathological examination showed FTLD with ubiquitin-positive cytoplasmic and intranuclear inclusions in all PGRN mutation carriers.",
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AU - Gass, Jennifer

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AU - Boeve, Bradley

AU - Baker, Matt

AU - Adamson, Jennifer

AU - Crook, Richard

AU - Melquist, Stacey

AU - Kuntz, Karen

AU - Petersen, Ron

AU - Josephs, Keith

AU - Pickering-Brown, Stuart M.

AU - Graff-Radford, Neill

AU - Uitti, Ryan

AU - Dickson, Dennis

AU - Wszolek, Zbigniew

AU - Gonzalez, John

AU - Beach, Thomas G.

AU - Bigio, Eileen

AU - Johnson, Nancy

AU - Weintraub, Sandra

AU - Mesulam, Marsel

AU - White, Charles L.

AU - Woodruff, Bryan

AU - Caselli, Richard

AU - Hsiung, Ging Yuek

AU - Feldman, Howard

AU - Knopman, Dave

AU - Hutton, Mike

AU - Rademakers, Rosa

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N2 - Null mutations in the progranulin gene (PGRN) were recently reported to cause tau-negative frontotemporal dementia linked to chromosome 17. We assessed the genetic contribution of PGRN mutations in an extended population of patients with frontotemporal lobar degeneration (FTLD) (N = 378). Mutations were identified in 10% of the total FTLD population and 23% of patients with a positive family history. This mutation frequency dropped to 5% when analysis was restricted to an unbiased FTLD subpopulation (N = 167) derived from patients referred to Alzheimer's Disease Research Centers (ADRC). Among the ADRC patients, PGRN mutations were equally frequent as mutations in the tau gene (MAPT). We identified 23 different pathogenic PGRN mutations, including a total of 21 nonsense, frameshift and splice-site mutations that cause premature termination of the coding sequence and degradation of the mutant RNA by nonsense-mediated decay. We also observed an unusual splice-site mutation in the exon 1 5′ splice site, which leads to loss of the Kozac sequence, and a missense mutation in the hydrophobic core of the PGRN signal peptide. Both mutations revealed novel mechanisms that result in loss of functional PGRN. One mutation, c.1477C>T (p.Arg493X), was detected in eight independently ascertained familial FTLD patients who were shown to share a common extended haplotype over the PGRN genomic region. Clinical examination of patients with PGRN mutations revealed highly variable onset ages with language dysfunction as a common presenting symptom. Neuropathological examination showed FTLD with ubiquitin-positive cytoplasmic and intranuclear inclusions in all PGRN mutation carriers.

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